A bone screw implant comprising a bone screw and a sleeve rotatably coupled with the bone screw. The bone screw includes a shank having a first end and a second end, the shank defining a longitudinal axis extending between the first end to the second end, the first end having a first engagement geometry extending about the shank and the second end having a tip. The bone screw includes an external threading extending along the shank and at least one cutting flute configured to gather and retain bone shavings. The sleeve includes a body portion having an external surface and a bore forming an internal surface, the internal surface having a second engagement geometry extending about the bore, where the first engagement geometry and the second engagement geometry allow the sleeve to rotate freely relative to the bone screw.
An expandable implant. The expandable implant includes a base member having a top surface and a bottom surface opposite the top surface, and an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position. The adjustable member has a top surface and a bottom surface opposite the top surface. The top surface of the adjustable member and the bottom surface of the base member form a first angle while the adjustable member is in the first, collapsed position, and the top surface of the adjustable member and the bottom surface of the base member form a second angle while the adjustable member is in the second, expanded position. The first angle is different from the second angle.
A guide assembly includes a rod guide portion comprising an upper threaded portion and a non-threaded portion, a spinal rod holder coupled to the rod guide portion and configured to receive a spinal screw, the spinal rod holder comprising an intermediate threaded portion spaced apart from the upper threaded portion by the non-threaded portion and a lower threaded portion, where the upper threaded portion is configured to engage a threaded portion of a reduction tool in a first configuration and disengage the threaded portion of the reduction tool in a second configuration with the reduction tool advanced in the spinal rod holder toward the lower threaded portion, and the rod guide portion is removable from a remainder of the spinal rod holder.
A61B 17/88 - Methods or means for implanting or extracting internal fixation devices
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
4.
ARTICULATING CURETTE FOR DECORTICATING A VERTEBRAL ENDPLATE VIA A CANNULA
A medical instrument fashioned as an articulating curette for decorticating vertebral endplates of vertebrae of a spine via a cannula has a handle, a controller connected to the handle, two opposing arms extending from the controller, a control shaft between the two opposing arms and coupled to the controller for longitudinally axial movement thereof by the controller relative to the two opposing arms, a bladed decorticating head for decorticating vertebral endplate bone material from vertebral endplates and pivotally connected to the two opposing arms for articulation from 0° to 90° relative to the longitudinal axis of the control shaft, and a pivot mechanism between the bladed decorticating head and the control shaft providing controlled articulation of the bladed decorticating head through longitudinally axial movement of the control shaft. Rotational movement of the controller moves the control shaft axially relative to the two opposing arms to articulate the bladed decorticating head.
A medical instrument for shaving, collecting, and removing vertebral disc material from a vertebral disc space of a spine, has a shaft defining a proximal shaft end and a distal shaft end, and an auger at the distal shaft end. The auger has a plurality of helical cutting flutes configured to shave and collect vertebral disc material from the vertebral disc through rotation of the auger. Each helical cutting flute has a cutting apex that together define a cutting tip, and a radially inward helical slot that collectively define an internal cavity for collection of cut vertebral disc material. The plurality of cutting apexes converge at the cutting tip, defining a point. The medical instrument includes a connector to allow attachment of a handle. A notch in the proximal shaft end that receives a flange of the handle prevents rotation of the handle relative to the auger.
An expandable implant assembly includes an upper endplate assembly, a lower endplate assembly, and a control assembly. The upper endplate assembly is configured to engage bone and includes an upper base member and a plurality of upper endplates. Each of the plurality of upper endplates is coupleable to the base member. The lower endplate assembly is configured to engage bone and includes a lower base member and a plurality of lower endplates. Each of the plurality of lower endplates is coupleable to the base member. The control assembly is configured to couple the upper endplate assembly to the lower endplate assembly and control movement of the upper endplate assembly relative to the lower endplate assembly.
A micro retractor (10) for tissue retraction during surgery has a head (12) with an opening (16) extending from an upper surface (13) of the head to a lower surface (14) of the head with a first leg (27) fixed to a first side of the head opening and extending downward relative to the lower surface, and a second leg (28) fixed to a member (32) movable in the head opening and extending downward relative to the lower surface, together defining a channel (34) allowing various medical instruments to be inserted therein during retraction. A distal first leg end (31 ) and a distal second leg end (33) meet, forming a pivot point (30) wherein the dimension of the channel remains nearly fixed and tissue retraction at the pivot point remains constant, while the proximal second leg end is movable via the member (32) to vary the dimension of the channel opening (44) which also varies the dimension of the channel opening and the channel (34).
A micro retractor for tissue retraction during surgery has a head with an opening extending from an upper surface of the head to a lower surface of the head with a first leg fixed to a first side of the head opening and extending downward relative to the lower surface, and a second leg fixed to a member movable in the head opening and extending downward relative to the lower surface, together defining a channel allowing various medical instruments to be inserted therein during retraction. A distal first leg end and a distal second leg end meet, forming a pivot point wherein the dimension of the channel remains nearly fixed and tissue retraction at the pivot point remains constant, while the proximal second leg end is movable via the member to vary the dimension of the channel opening which also varies the dimension of the channel opening and the channel.
An installation tool comprising a tool body, a control shaft disposed at least partially within the tool body, a tool interface coupled to the tool body, and a control plate housed within the tool interface. The tool comprising a body member coupled with the tool interface, the body member including a channel to receive a barb, a retention member to engage the barb to position the barb within the channel, and an interface to engage a surface of an implant to align the implant relative to the body member. The tool comprising a first arm and a second arm that are movable between a first configuration and a second configuration, where in the first configuration the first and second arms extend laterally away from the tool interface, and in the second configuration the first and second arms engage the tool interface and are configured to secure the implant.
An expandable implant assembly includes an upper endplate assembly, a lower endplate assembly, and a control assembly. The upper endplate assembly is configured to engage bone and includes an upper base member and a plurality of upper endplates. Each of the plurality of upper endplates is coupleable to the base member. The lower endplate assembly is configured to engage bone and includes a lower base member and a plurality of lower endplates. Each of the plurality of lower endplates is coupleable to the base member. The control assembly is configured to couple the upper endplate assembly to the lower endplate assembly and control movement of the upper endplate assembly relative to the lower endplate assembly.
An expandable implant includes an upper main support of bone, a lower main support coupled to the upper main support, the lower main support comprising a first coupling feature and a second coupling feature being substantially parallel to the first coupling feature, and a control assembly configured to control relative movement between the upper main support and the lower main support, the control assembly including a first control member configured to engage the upper main support and the lower main support and interface with the first coupling feature a second control member configured to engage the upper main support and the lower main support and interface with the second coupling feature, and a control shaft configured to be received by the first control member and the second control member, wherein manipulation of the control shaft causes relative movement between the upper main support and the lower main support.
An adjustable implant includes a body portion including a first end, a second end including a bull nose, and a sidewall extending from the first end to the second end, a hook coupled to the body portion, the hook including a first hook portion extending from the body portion in a first direction, and a second hook portion extending from the first hook portion in a second direction that is different from the first direction, a first wing coupled to the first end of the body portion, and a second wing coupled to the body portion such that the distance between the first wing and the second wing is adjustable by a user, wherein the first and second wings include inward facing surfaces configured to be positioned adjacent portions of bone of a patient.
An expandable implant includes an upper plate configured to receive a first anchoring member, the upper support comprising a first end, a second end, a first side extending between the first end and the second end, the upper plate configured to receive the first anchoring member such that a first center-line trajectory of the first anchoring member is angled toward the first side. The implant further comprising a lower support coupled to the upper support, the lower support comprising a lower plate configured to receive a second anchoring member such that a second center-line trajectory of the second anchoring member is angled towards the first side. The implant further comprising a control member configured to control relative movement between the upper support and the lower support.
A steerable expandable implant having a lower support member and an upper support member, the upper support member movable relative to the lower support member between a collapsed position and an expanded position. The implant also includes a first control member coupled to the lower support member, where manipulation of the first control member causes the lower support member to move relative to the upper support member. The implant further includes a pivot member configured to receive a tool, the tool and the pivot member rotatable relative to the lower support member between a first position and a second position, where the pivot member includes an aperture and an axis of the aperture is angularly offset from an axis of the first control member in the first position and the axis of the aperture is angularly aligned with the axis of the first control member in the second position.
An implant includes an interbody device having a front, a rear, a first lateral side, a second lateral side, a central cavity, and a plurality of bores extending into the rear of the interbody device, each arced bore being configured to receive an arced anchoring member.
A bone screw implant comprising a bone screw and a sleeve. The bone screw includes a first end, a second end opposite the first end, a cannula extending from the first end to the second end, an externally treaded portion provided between the first end and the second end, and at least one cutting flute. The at least one cutting flute extending from the first end toward the second end, where the cutting flute comprises at least one window extending through the cutting flute and in communication with the cannula. The sleeve comprising a cylindrical body portion extending about the second end of the bone screw, and a plurality of projections extending from the cylindrical body portion configured to engage bone as the bone screw is threadingly advanced.
A medical instrument for shaving, collecting, and removing vertebral disc material from a vertebral disc space of a spine, has a shaft defining a proximal shaft end and a distal shaft end, and an auger at the distal shaft end. The auger has a plurality of helical cutting flutes configured to shave and collect vertebral disc material from the vertebral disc through rotation of the auger. Each helical cutting flute has a cutting apex that together define a cutting tip, and a radially inward helical slot that collectively define an internal cavity for collection of cut vertebral disc material. The plurality of cutting apexes converge at the cutting tip, defining a point. The medical instrument includes a connector to allow attachment of a handle. A notch in the proximal shaft end that receives a flange of the handle prevents rotation of the handle relative to the auger.
A medical instrument (10) for shaving, collecting, and removing vertebral disc material from a vertebral disc space of a spine, has a shaft (14) defining a proximal shaft end and a distal shaft end, and an auger (16) at the distal shaft end. The auger has a plurality of helical cutting flutes (27, 28, 29) configured to shave and collect vertebral disc material from the vertebral disc through rotation of the auger. Each helical cutting flute (27, 28, 29) has a cutting apex (38, 39, 30) that together define a cutting tip (25), and a radially inward helical slot (42, 43, 44) that collectively define an internal cavity (36) for collection of cut vertebral disc material. The plurality of cutting apexes converge at the cutting tip (25), defining a point. The medical instrument (10) includes a connector (19) to allow attachment of a handle. A notch (21 ) in the proximal shaft end that receives a flange of a handle to prevent rotation of the handle relative to the auger.
A two-piece medical instrument (10) for installing an expandable interbody (intervertebral) spine implant via an endoscope (200), has a handle assembly (12) and a shaft assembly (14) configured for extension through the endoscope, the shaft assembly holding an expandable interbody spine implant (250) when the shaft assembly is fully received by a head (20) of the handle assembly, and releasing the spine implant upon retraction of the shaft assembly from the head of the handle assembly. The shaft assembly has a rod (40) with a longitudinal bore (42) and a sleeve (55) situated on the rod that axially moves relative to the rod in response to the reception into and retraction from the handle assembly head, with the sleeve controlling capture and release of the implant by the rod. The distal end (46) of the rod has a clamp (48) formed by jaws (51, 53) that flex to capture and release the implant.
A two-piece medical instrument for installing an expandable interbody (intervertebral) spine implant via an endoscope, has a handle assembly and a shaft assembly configured for extension through the endoscope, the shaft assembly holding an expandable interbody spine implant when the shaft assembly is fully received by a head of the handle assembly, and releasing the spine implant upon retraction of the shaft assembly from the head of the handle assembly. The shaft assembly has a rod with a longitudinal bore and a sleeve situated on the rod that axially moves relative to the rod in response to the reception into and retraction from the handle assembly head, with the sleeve controlling capture and release of the implant by the rod. The distal end of the rod has a clamp formed by jaws that flex to capture and release the implant.
A61F 2/46 - Special tools for implanting artificial joints
A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/313 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
A surgical apparatus includes an instrument portal including a first proximal end, a first distal end, and a first elongated member, the first elongated member defining a first bore having a first dimension, wherein the first bore extends from the first distal end to the first proximal end, wherein the maximum clearance of the instrument portal is the first dimension and a drill guide reducer configured to be inserted into the instrument portal, the drill guide reducer including an elongated cylindrical member defining an enclosed body surrounding an opening, the enclosed body having an outside dimension that is smaller than the first dimension, such that the drill guide reducer is sized to fit within the instrument portal and defining an inner dimension configured to receive a drill guide, wherein the inner dimension of the drill guide reducer is smaller than the first dimension of the instrument portal.
An implant assembly includes an expandable implant, the expandable implant including a base member and an adjustable member movable relative to the base member such that the implant is movable between a collapsed configuration and an expanded configuration. The base member includes an attachment port. The implant assembly further includes a plate configured to be coupled to expandable implant when the expandable implant is in the expanded configuration, a coupling fastener configured to couple the plate to the expandable implant, and at least one bone screw configured to extend through the plate and into an adjacent portion of bone. The attachment port is configured to receive an installation tool during positioning of the expandable implant and to receive the coupling fastener to couple the plate to the expandable implant.
An implant includes a first support, a second support rotatably coupled to the first support along a distal end of the implant, and a control assembly configured to move the implant between at least a first, collapsed orientation and a second, expanded orientation, the control assembly includes a control driver coupled to the first support and comprising a head and a shaft, the control driver configured to control relative movement between the first support and the second support, a control member configured to move along the shaft of the control driver, and a first linkage hingedly coupled to the control member and the second support, wherein movement of the control member causes the first support to move relative to the second support.
An expandable implant. The expandable implant includes a base member having a top surface and a bottom surface opposite the top surface, and an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position. The adjustable member has a top surface and a bottom surface opposite the top surface. The top surface of the adjustable member and the bottom surface of the base member form a first angle while the adjustable member is in the first, collapsed position, and the top surface of the adjustable member and the bottom surface of the base member form a second angle while the adjustable member is in the second, expanded position. The first angle is different from the second angle.
A medical instrument (10) fashioned as an articulating curette for decorticating vertebral endplates of vertebrae of a spine via a cannula has a handle (12), a controller (13) connected to the handle, two opposing arms (15a, 15b) extending from the controller, a control shaft (16) between the two opposing arms and coupled to the controller for longitudinally axial movement thereof by the controller relative to the two opposing arms, a bladed decorticating head (18) for decorticating vertebral endplate bone material from vertebral endplates and pivotally connected to the two opposing arms for articulation from 0° to 90° relative to the longitudinal axis (LA) of the control shaft, and a pivot mechanism (31) between the bladed decorticating head and the control shaft providing controlled articulation of the bladed decorticating head through longitudinally axial movement of the control shaft. Rotational movement of the controller moves the control shaft axially relative to the two opposing arms to articulate the bladed decorticating head.
A pituitary rongeur medical instrument (10) has jaws (34) that can controllably articulate radially from a longitudinal axis (LA) of a shaft assembly (24) of the pituitary rongeur and beyond a perimeter of a cannula (60) during use. The pituitary rongeur (10) is characterized by a handle (12), the shaft assembly (24) defining a proximal end (15) extending from the handle (12), a distal end (19), and a longitudinal axis (LA), with the jaws (34) pivotally connected to the distal end (19) of the shaft assembly (24) for articulating radial movement of the jaws (34) relative to the longitudinal axis (LA) of the shaft assembly (24), a jaw controller (28) associated with the shaft assembly (24) and configured to controllably close and open the jaws (34), and an articulation controller (30) associated with the shaft assembly (24) and configured to controllably articulate the jaws (34). The handle (12) is formed by a handgrip portion (13) configured to receive a palm of a user and a lever portion (16) with a finger loop (17) configured to receive fingers of the user.
A medical instrument fashioned as an articulating curette for decorticating vertebral endplates of vertebrae of a spine via a cannula has a handle, a controller connected to the handle, two opposing arms extending from the controller, a control shaft between the two opposing arms and coupled to the controller for longitudinally axial movement thereof by the controller relative to the two opposing arms, a bladed decorticating head for decorticating vertebral endplate bone material from vertebral endplates and pivotally connected to the two opposing arms for articulation from 0° to 90° relative to the longitudinal axis of the control shaft, and a pivot mechanism between the bladed decorticating head and the control shaft providing controlled articulation of the bladed decorticating head through longitudinally axial movement of the control shaft. Rotational movement of the controller moves the control shaft axially relative to the two opposing arms to articulate the bladed decorticating head.
A pituitary rongeur medical instrument has jaws that can controllably articulate radially from a longitudinal axis of a shaft assembly of the pituitary rongeur and beyond a perimeter of a cannula during use. The pituitary rongeur is characterized by a handle, a shaft assembly defining a proximal end extending from the handle, a distal end, and a longitudinal axis, with the jaws pivotally connected to the distal end of the shaft assembly for articulating radial movement of the jaws relative to the longitudinal axis of the shaft assembly, a jaw controller associated with the shaft assembly and configured to controllably close and open the jaws, and an articulation controller associated with the shaft assembly and configured to controllably articulate the jaws. The handle is formed by a handgrip portion configured to receive a palm of a user and a lever portion with a finger loop configured to receive fingers of the user.
A vertebral endplate preparation (decorticating) tool has height adjustable blades at a distal end of a shaft assembly for decorticating/shaving vertebral endplate material from spinal vertebrae, translates axial movement of a control rod of the shaft assembly of the vertebral endplate preparation tool with height adjustable blades into radial blade height change (extension and retraction) through a controller of a handle assembly. The blades may also be configured for collecting and removing shaved vertebral endplate material. The blades controllably move outward radially from the distal end of the shaft assembly and controllably move inward radially into the distal end of the shaft assembly upon manipulation of the controller. Radial blade extension and retraction from the distal end may be accomplished via mutual angled dovetail features of the blades and the distal end, or via pins of the distal end of the shaft assembly situated in angled slots of the blades.
A vertebral endplate preparation (decorticating) tool (110) has height adjustable blades (136, 137) at a distal end (120) of a shaft assembly (114) for decorticating/shaving vertebral endplate material from spinal vertebrae, translates axial movement of a control rod of the shaft assembly of the vertebral endplate preparation tool with height adjustable blades into radial blade height change (extension and retraction) through a controller (113) of a handle assembly (112). The blades may also be configured for collecting and removing shaven vertebral endplate material. The blades controllably move outward radially from the distal end of the shaft assembly and controllably move inward radially into the distal end of the shaft assembly upon manipulation of the controller. Radial blade extension and retraction from the distal end may be accomplished via mutual angled dovetail features (138, 139, 148,149; 166, 167, 164, 165) of the blades and the distal end, or via pins (1100, 1101 ) of the distal end of the shaft assembly situated in angled slots (187, 188; 195, 196) of the blades.
An expandable implant includes a lower support; an upper support pivotally coupled to the lower support and including a control channel; and a control assembly. The control assembly includes a control shaft coupled to the lower support and a control member coupled to the control shaft and configured to move along the control shaft. The control member includes a base member and a pivot member pivotally coupled to the base member, the pivot member configured to move within the control channel. Movement of the control member along the control shaft causes the pivot member to pivot relative to the base member, and the upper support to pivot relative to the lower support.
A medical instrument (100) for dislodging vertebral disc material from a vertebral disc in a vertebral disc space via a cannula has a pivoting scoop structure (121) with a scoop (110) that provides a 180° pivot sweep outside of the perimeter of the cannula (50). The medical instrument (100) has an elongate body (102) defining a longitudinal axis with the pivoting scoop structure (121) situated at a distal end (136) of the elongate body (102). The elongate body (102) has a first elongate shaft (103) and a second elongate shaft (104) situated on and configured for longitudinal axial translation relative to the first elongate shaft (103). Axial movement of the second elongate shaft (104) controllably swivels the pivoting scoop structure (121) from, through, and between 0° to 180° relative to the longitudinal axis of the elongate body (102). The scoop structure (121) may also allow for collection and removal of dislodged vertebral disc material.
A medical instrument for dislodging vertebral disc material from a vertebral disc in a vertebral disc space via a cannula has a pivoting scoop structure with a scoop that provides a 180° pivot sweep outside of the diameter of the cannula. The medical instrument has an elongate body defining a longitudinal axis with the pivoting scoop structure situated at a distal end of the elongate body. The elongate body has a first elongate shaft and a second elongate shaft situated on and configured for longitudinal axial translation relative to the first elongate shaft. Axial movement of the second elongate shaft controllably swivels the pivoting scoop structure from, through, and between 0° to 180° relative to the longitudinal axis of the elongate body. The scoop structure may also allow for collection and removal of dislodged vertebral disc material.
An implant includes a body, a cavity extending into the body and defined by a first interior lateral wall, a second interior lateral wall opposite the first interior lateral wall, a first interior end wall, and a second interior end wall, a blade guide positioned in the cavity, a blade configured to translate along the blade guide between a first position and a second position, wherein the blade is positioned between the first interior lateral wall, the second interior lateral wall, the first interior end wall, and the second interior end wall in the first position, and an opening extending into the cavity, the opening configured to receive a portion of a rod such that movement of the rod into the opening causes the blade to translate from the first position to the second position.
A spine implant for receipt between and fastened to a lower vertebra and an adjacent upper vertebra is characterized by an expandable cage and an expandable plate attached to the expandable cage. When the expandable cage is expanded, both the expandable cage and the expandable plate expand together at a uniform rate of movement. Engagement features of the expandable cage cooperate with engagement features of the expandable plate such that expansion of the expandable cage carries the expandable plate along during its expansion. The engagement features of the expandable cage may be configured as notches, cavities, or recessed pockets, while the engagement features of the expandable plate may be configured as tangs, flanges, or protuberances styled to be received by the configured notches of the expandable cage. Cam locks on the expandable plate help bone fastener backout.
Systems and methods for detecting regions of interests (ROIs) in biomedical images are described herein. A computing system may identify a biomedical image having an ROI. The computer system may apply an object detection model to the biomedical image. The object detection model may generate a feature map using the biomedical image. The object detection model may generate an anchor box corresponding to a portion of the pixels in the feature map. The computing system may apply an instance segmentation model to identify a segment of the biomedical image within the anchor box corresponding to the ROI. The computer system may provide an output based on the segment to identify the ROI in the biomedical image.
Systems and methods for detecting regions of interests (ROIs) in biomedical images are described herein. A computing system may identify a biomedical image having an ROI. The computer system may apply an object detection model to the biomedical image. The object detection model may generate a feature map using the biomedical image. The object detection model may generate an anchor box corresponding to a portion of the pixels in the feature map. The computing system may apply an instance segmentation model to identify a segment of the biomedical image within the anchor box corresponding to the ROI. The computer system may provide an output based on the segment to identify the ROI in the biomedical image.
G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
A bone screw for sacroiliac joint fusion is characterized by a longitudinal bone screw and a cylindrical sleeve received on a proximal end of the bone screw. The sleeve has axially extending fins or flutes on its outer surface that extend generally from one end of the sleeve to the other end of the sleeve. This feature allows the sleeve to resist reverse rotation which, in turn, aids in preventing back-out of the bone screw once installed. The bone screw has a self-tapping tip that allows the bone screw to be installed without need for a pilot hole, and self-harvesting geometry that gathers and retains bone shavings in and along the bone screw that are produced by bone screw installation for use as graft for bone fusion.
An expandable implant includes a base member, an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position, a control assembly including a control shaft, wherein manipulation of the control shaft causes relative movement of the adjustable member relative to the base member, wherein the base member and the adjustable member are coupled together at least in part via the control assembly such that the control shaft is rotationally fixed relative to the base member and the adjustable member, and the adjustable member is resiliently compressible relative to the base member.
A steerable expandable implant having a lower support member and an upper support member, the upper support member movable relative to the lower support member between a collapsed position and an expanded position. The implant also includes a first control member coupled to the lower support member, where manipulation of the first control member causes the lower support member to move relative to the upper support member. The implant further includes a pivot member configured to receive a tool, the tool and the pivot member rotatable relative to the lower support member between a first position and a second position, where the pivot member includes an aperture and an axis of the aperture is angularly offset from an axis of the first control member in the first position and the axis of the aperture is angularly aligned with the axis of the first control member in the second position.
A spinal interbody device includes a base link comprising a first end and a second end, the base link including a cutout extending through the base link between the first end and the second end; a linkage including a first link having a first end coupled to the first end of the base link and a second end, the first link including a first aperture extending through the first link and defining a first longitudinal axis; and a second link having a first end coupled to the second end of the first link and a second end coupled to the second end of the base link, the second link including a second aperture extending through the second link and defining a second longitudinal axis. The base link and the first and second links define top and bottom surfaces configured to engage adjacent portions of bone, and first and second sides extending between the top and bottom surfaces. When the linkage is movable relative to the base link between a collapsed position and an expanded position, wherein when in the expanded position, an unobstructed line of sight is provided through the cutout and the first aperture along the first longitudinal axis and through the cutout and the second aperture along the second longitudinal axis.
A spine plate implant utilizes cam lock setscrews to retain bone screws in the plate once implanted. A cam lock setscrew is received in a setscrew pocket adjacent a configured bone screw bore of the plate and is configured to allow a bone screw to be received in the plate when in an unlocked rotational position, and to retain the received bone screw when in a locked rotational position. The bone screw may include a tang that allows engagement with external teeth of the cam lock setscrew when the cam lock setscrew is rotated into the locked position. Once the cam lock setscrew is in the locked position, the bone screw is inhibited from backing out of the bone screw bore. When the cam lock setscrew is in the unlocked position, a flat of the cam lock setscrew is adjacent the bone screw tang so the bone screw may be removed.
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
16 - Paper, cardboard and goods made from these materials
42 - Scientific, technological and industrial services, research and design
Goods & Services
Biologic medical products, namely, allograft tissue including demineralized bone matrix. Spinal implants composed of artificial materials; bone implants composed of artificial materials; surface coating treatment for orthopedic implants; orthopedic surgical devices and instruments, and implantable orthopaedic medical devices composed of artificial materials; Surgical and medical apparatus and instruments for orthopedic surgery,spine surgery, and neurosurgery; method for delivering synthetic bone grafts, namely, cannula/syringe combination synthetic bone graft delivery systems. Printed instructional and educational materials in the field of surgical spine procedures. Development and establishment of surgical spine procedures.
47.
IMPLANT ASSEMBLY WITH EXPANDABLE IMPLANT AND PLATE
An implant assembly includes an expandable implant, the expandable implant including a base member and an adjustable member movable relative to the base member such that the implant is movable between a collapsed configuration and an expanded configuration. The base member includes an attachment port. The implant assembly further includes a plate configured to be coupled to expandable implant when the expandable implant is in the expanded configuration, a coupling fastener configured to couple the plate to the expandable implant, and at least one bone screw configured to extend through the plate and into an adjacent portion of bone. The attachment port is configured to receive an installation tool during positioning of the expandable implant and to receive the coupling fastener to couple the plate to the expandable implant.
A surgical system includes an instrument portal comprising a first proximal end, a first distal end, and a first elongated member, the first elongated member comprising a first bore defining a first diameter, wherein the first bore extends from the first distal end to the first proximal end, wherein the maximum clearance of the instrument portal is the first diameter, and a drill guide reducer configured to be inserted into the instrument portal, the drill guide reducer comprising an elongated cylindrical member defining an outside diameter such that the drill guide reducer is sized to fit within the instrument portal and defining an inner diameter configured to receive a drill guide, wherein the inner diameter of the drill guide reducer is smaller than the first diameter of the instrument portal.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
An expandable implant includes a lower support; an upper support pivotally coupled to the lower support and including a control channel; and a control assembly. The control assembly includes a control shaft coupled to the lower support and a control member coupled to the control shaft and configured to move along the control shaft. The control member includes a base member and a pivot member pivotally coupled to the base member, the pivot member configured to move within the control channel. Movement of the control member along the control shaft causes the pivot member to pivot relative to the base member, and the upper support to pivot relative to the lower support.
An expandable implant includes a lower support; an upper support pivotally coupled to the lower support and including a control channel; and a control assembly. The control assembly includes a control shaft coupled to the lower support and a control member coupled to the control shaft and configured to move along the control shaft. The control member includes a base member and a pivot member pivotally coupled to the base member, the pivot member configured to move within the control channel. Movement of the control member along the control shaft causes the pivot member to pivot relative to the base member, and the upper support to pivot relative to the lower support.
A retractor includes a body, a first handle pivotally coupled to the body, a first attachment assembly comprising a first button configured to allow detachment of a second handle portion from the first handle, a first arm assembly attached to the first handle, a first blade attached to the first arm assembly, wherein the first handle is configured to control distraction of the first blade in response to pivotal motion of the first handle, a second handle pivotally coupled to the body, a second attachment assembly comprising a second button configured to allow detachment of a fourth handle portion from the second handle, a second arm assembly attached to the second handle, and a second blade attached to the second arm assembly, wherein the second handle is configured to control distraction of the second blade in response to pivotal motion of the second handle.
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Biologic medical products, namely, human allograft tissue in the nature of demineralized bone matrix; disinfectant in the nature of a surface coating for orthopedic implants Spinal implants composed of artificial materials; bone implants composed of artificial materials; orthopedic surgical devices and instruments; implantable orthopedic medical devices, namely, bones for implantation and biodegradable bone fixation implants composed of artificial materials; Surgical and medical apparatus and instruments for orthopedic surgery, spine surgery, and neurosurgery; synthetic bone graft delivery systems comprised of a combination of a cannula and an injection syringe for use in delivering synthetic bone grafts Printed instructional and educational materials in the field of surgical spine procedures Medical consulting services in the field of the development and establishment of surgical spine procedures
53.
Spine implant with cam screws for inhibiting bone anchor backout
A spine implant for an ALIF procedure includes anchoring members being either a bone screw or flexible barb, each having a head on one end of a shaft, and a tip on another end of the shaft. The spine implant includes a porous cage having a front, rear, central cavity, and three angled bores in the front that extend into the central cavity configured to receive one of the plurality of anchoring members such that the tip of the anchoring member extends from one or another side of the cavity with its head retained in the front. The spine implant further includes two retention members configured for insertion into the front such that a portion of the two retention members are positioned over the heads of two, adjacent anchoring members to inhibit bone anchor backout via cam action between the retention member and the heads of the anchoring members.
An implant includes a first support, a second support rotatably coupled to the first support along a distal end of the implant, and a control assembly configured to move the implant between at least a first, collapsed orientation and a second, expanded orientation, the control assembly includes a control driver coupled to the first support and comprising a head and a shaft, the control driver configured to control relative movement between the first support and the second support, a control member configured to move along the shaft of the control driver, and a first linkage hingedly coupled to the control member and the second support, wherein movement of the control member causes the first support to move relative to the second support.
An implant includes a first support, a second support rotatably coupled to the first support along a distal end of the implant, and a control assembly configured to move the implant between at least a first, collapsed orientation and a second, expanded orientation, the control assembly includes a control driver coupled to the first support and comprising a head and a shaft, the control driver configured to control relative movement between the first support and the second support, a control member configured to move along the shaft of the control driver, and a first linkage hingedly coupled to the control member and the second support, wherein movement of the control member causes the first support to move relative to the second support.
A spine implant for a TLIF surgical procedure is configured to be guided into place during implantation in conjunction with a complementary insertion instrument. The cage of the implant is constrained to a limited range of rotation about a pivoting post carried by the cage. The insertion instrument is configured to hold the post while controllably rotating the cage relative to the post in order to angularly position the implant during implantation. Range of rotational motion is controlled by the configuration of an opening in and end of the cage and a groove in the pivot post. A retaining pin of the implant extends from the cage into the groove of the post to rotationally connect the cage to the post.
An expandable implant includes an upper portion configured to engage a first portion of bone, a bottom portion configured to engage a second portion of bone, a control assembly coupled to the upper portion and the bottom portion and configured to control relative movement between the upper portion and the bottom portion, wherein the control assembly includes a front portion and a control member, wherein the front portion has an aperture configured to receive the control member, wherein the control member includes a head, and wherein a portion of the head is positioned outside of the aperture as the implant is expanded between a first, collapsed orientation and a second, expanded orientation.
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Biologic medical products, namely, human allograft tissue in the nature of demineralized bone matrix; disinfectant in the nature of a surface coating for orthopedic implants Spinal implants composed of artificial materials; bone implants composed of artificial materials; orthopedic surgical devices and instruments; implantable orthopedic medical devices, namely, bones for implantation and biodegradable bone fixation implants composed of artificial materials; Surgical and medical apparatus and instruments for orthopedic surgery, spine surgery, and neurosurgery; synthetic bone graft delivery systems comprised of a combination of a cannula and an injection syringe for use in delivering synthetic bone grafts Printed instructional and educational materials in the field of surgical spine procedures Medical consulting services in the field of the development and establishment of surgical spine procedures
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
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Downloadable audio and video recordings featuring surgical techniques and procedures for installing spine implants using an endoscope Medical and surgical apparatus and instruments, namely, devices for performing surgical techniques and procedures for installing spine implants using an endoscope; spine implants consisting of artificial materials for use in the surgical techniques and procedures for installing spine implants using an endoscope Printed instructional and teaching materials in the field of surgical techniques and procedures for installing spine implants using an endoscope Providing a website featuring non-downloadable educational videos in the field of surgical techniques and procedures for installing spine implants using an endoscope
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
16 - Paper, cardboard and goods made from these materials
41 - Education, entertainment, sporting and cultural services
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Downloadable audio and video recordings featuring surgical techniques and procedures for installing spine implants using an endoscope Medical and surgical apparatus and instruments, namely, devices for performing surgical techniques and procedures for installing spine implants using an endoscope; spine implants consisting of artificial materials for use in the surgical techniques and procedures for installing spine implants using an endoscope Printed instructional and teaching materials in the field of surgical techniques and procedures for installing spine implants using an endoscope Providing a website featuring non-downloadable educational videos in the field of surgical techniques and procedures for installing spine implants using an endoscope
An expandable implant includes a top support configured to engage a first portion of vertebral bone, a bottom support configured to engage a second portion of vertebral bone, and a control assembly coupled to the top support and the bottom support and configured to control relative movement between the top support and the bottom support. The control assembly includes a control member including a head and a body portion. The head includes a recess and the body portion includes at least one access port in fluid communication with the recess to enable delivery of fluid to an interior of the implant via the recess and at least one access port.
A steerable expandable implant including a base member, an adjustable member coupled to the base member, the adjustable member movable between a collapsed position and an expanded position, a pivot member rotatably received by the base member and configured to receive a tool such that the tool and the pivot member are rotatable relative to the base member between a first position and a second position, wherein the pivot member is translationally fixed relative to the base member, and a first control member received by the base member, wherein manipulation of the first control member causes the adjustable member to move between the collapsed position and the expanded position.
A steerable expandable implant including a base member, an adjustable member coupled to the base member, the adjustable member movable between a collapsed position and an expanded position, a pivot member rotatably received by the base member and configured to receive a tool such that the tool and the pivot member are rotatable relative to the base member between a first position and a second position, wherein the pivot member is translationally fixed relative to the base member, and a first control member received by the base member, wherein manipulation of the first control member causes the adjustable member to move between the collapsed position and the expanded position.
An expandable includes a base member having a top surface and a bottom surface opposite the top surface, and an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position. The adjustable member has a top surface and a bottom surface opposite the top surface. The top surface of the adjustable member and the bottom surface of the base member form a first angle while the adjustable member is in the first, collapsed position, and the top surface of the adjustable member and the bottom surface of the base member form a second angle while the adjustable member is in the second, expanded position. The first angle is different from the second angle.
An expandable implant includes an upper plate configured to receive a first anchoring member, an upper support mechanically coupled to the upper plate, a lower plate configured to receive a second anchoring member, and a lower support mechanically coupled to the lower plate. The implant further includes a control member including a shaft and configured to control movement between the upper support and the lower support, a front portion configured engage the upper support and the lower support and further configured to receive the head of the control member, and a rear portion configured engage the upper support and the lower support and further configured to engage a portion of the shaft, wherein turning the control member causes the front portion to move in a direction towards the rear portion, such that the upper support moves relative to the lower support in a direction away from the lower support.
An expandable implant is disclosed. The expandable implant includes a base member having a top surface and a bottom surface opposite the top surface, and an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position. The adjustable member has a top surface and a bottom surface opposite the top surface. The top surface of the adjustable member and the bottom surface of the base member form a first angle while the adjustable member is in the first, collapsed position, and the top surface of the adjustable member and the bottom surface of the base member form a second angle while the adjustable member is in the second, expanded position. The first angle is different from the second angle.
A spine implant for receipt between and fastened to a lower vertebra and an adjacent upper vertebra is characterized by an expandable cage and an expandable plate attached to the expandable cage. When the expandable cage is expanded, both the expandable cage and the expandable plate expand together at a uniform rate of movement. Engagement features of the expandable cage cooperate with engagement features of the expandable plate such that expansion of the expandable cage carries the expandable plate along during its expansion. The engagement features of the expandable cage may be configured as notches, cavities, or recessed pockets, while the engagement features of the expandable plate may be configured as tangs, flanges, or protuberances styled to be received by the configured notches of the expandable cage. Cam locks on the expandable plate help bone fastener backout.
A spine implant for receipt between and fastened to a lower vertebra and an adjacent upper vertebra is characterized by an expandable cage and an expandable plate attached to the expandable cage. When the expandable cage is expanded, both the expandable cage and the expandable plate expand together at a uniform rate of movement. Engagement features of the expandable cage cooperate with engagement features of the expandable plate such that expansion of the expandable cage carries the expandable plate along during its expansion. The engagement features of the expandable cage may be configured as notches, cavities, or recessed pockets, while the engagement features of the expandable plate may be configured as tangs, flanges, or protuberances styled to be received by the configured notches of the expandable cage. Cam locks on the expandable plate help bone fastener backout.
An expandable implant includes an upper plate configured to receive a first anchoring member, an upper support mechanically coupled to the upper plate, a lower plate configured to receive a second anchoring member, and a lower support mechanically coupled to the lower plate. The implant further includes a control member including a shaft and configured to control movement between the upper support and the lower support, a front portion configured engage the upper support and the lower support and further configured to receive the head of the control member, and a rear portion configured engage the upper support and the lower support and further configured to engage a portion of the shaft, wherein turning the control member causes the front portion to move in a direction towards the rear portion, such that the upper support moves relative to the lower support in a direction away from the lower support.
An expandable implant including a base member including a top surface, a first end, and a second end, and defining a central cavity positioned between the first end and the second end. The expandable implant further including an adjustable member including a top surface and at least one control channel, wherein the adjustable member is adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position, a control shaft received by the base member, wherein manipulation of the control shaft causes relative movement of the adjustable member relative to the base member, and at least one control member coupled to the control shaft and received by the control channel, wherein manipulation of the control shaft causes the control member to translate along the control channel.
A bone screw for sacroiliac joint fusion is characterized by a longitudinal bone screw and a cylindrical sleeve received on a proximal end of the bone screw. The sleeve has axially extending fins or flutes on its outer surface that extend generally from one end of the sleeve to the other end of the sleeve. This feature allows the sleeve to resist reverse rotation which, in turn, aids in preventing back-out of the bone screw once installed. The bone screw has a self-tapping tip that allows the bone screw to be installed without need for a pilot hole, and self-harvesting geometry that gathers and retains bone shavings in and along the bone screw that are produced by bone screw installation for use as graft for bone fusion.
An orthopedic implant has a plate and bone screws. Configured bone screw pockets of the plate provide variable angling and positional locking of a received bone screw relative. Each bone screw includes distal threads, a neck, and a dual threaded head. The plate has a bone screw pocket on a distal end, a bone screw pocket on a proximal end, and a strut extending between the two bone screw pockets. The bone screw pockets are at least generally cup shaped for receipt of a bone screw. The lower periphery of the opening of each bone screw pocket has an arrangement of configured prongs with configured openings to receive threading on the underside of the dual threaded head of the bone screw. The prongs can preferably, but not necessarily, deform slightly and grab onto the threading of the bone screw head to lock the bone screw in the bone screw pocket. Each prong can act independently.
A spine implant is configured for use in spinal facet joint fixation or to connect distracted portions of a vertebral lamina in a laminopiasty through use or non-use of a spacer. One or two bone screw plates are angularly adjustable relative to a base plate for attachment by bone screws to vertebral bone. One form of the spine implant has a base plate, a first plate pivotally connected to the base plate for angular adjustment of the first plate relative to the base plate and configured to hold one or two bone screws for attaching the first plate to first vertebral bone, and a second plate configured to hold two bone screws for attaching the second plate to second vertebral bone. The second plate may be pivotally connected to the body for angular adjustment of the second plate relative to the base plate or fixed to the base plate at a predetermined angle.
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Medical devices, namely, spinal implants composed of artificial materials, orthopedic implants composed of artificial materials, bone and biodegradable bone fixation implants composed of artificial materials, and synthetic bone graft delivery systems comprising a combination of a cannula and an injection syringe to deliver synthetic bone grafts, for use in micro invasive surgical spine procedures; surgical implants consisting of artificial materials for micro invasive surgical spine procedures; surgical instruments for micro invasive surgical spine procedures Printed written instructional and educational materials, namely, surgical technique guides, case studies, procedures, articles, brochures, and marketing materials, regarding micro invasive surgical spine procedures Medical consulting services in the field of the development and establishment of micro invasive surgical spine procedures
76.
Systems and methods for spinal rod insertion and reduction
A guide assembly includes a spinal screw assembly having a bone screw and a spinal rod holder; and a spinal rod guide having first and second elongated arc portions defining a pair of longitudinal slots extending along the first and second arc portions, each of the first and second arc portions further defining at least one recess extending transversely from each of the longitudinal slots, the at least one recess configured to receive at least a portion of a reduction tool to enable reduction of a spinal rod received within the spinal rod holder.
A61B 17/88 - Methods or means for implanting or extracting internal fixation devices
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A connector assembly includes a bone screw including a head, a first holder assembly configured to receive the head of the bone screw from a bottom of the first holder assembly, an extension set screw including a head and a threaded portion, the threaded portion configured to be received from a top of the first holder assembly, a second holder assembly configured to receive the head of the extension set screw, and an end fastener configured to be received by the second holder assembly.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
An expandable implant includes an upper main support of bone, a lower main support coupled to the upper main support, the lower main support comprising a first coupling feature and a second coupling feature being substantially parallel to the first coupling feature, and a control assembly configured to control relative movement between the upper main support and the lower main support, the control assembly including a first control member configured to engage the upper main support and the lower main support and interface with the first coupling feature a second control member configured to engage the upper main support and the lower main support and interface with the second coupling feature, and a control shaft configured to be received by the first control member and the second control member, wherein manipulation of the control shaft causes relative movement between the upper main support and the lower main support.
A modular poly-axial bone screw includes a poly-axial bone screw, a poly-axial tulip head, and a collet disposed within the tulip head, the collet interacting with the bone screw and tulip head providing an interference fit with the bone screw head to lock orientation of the tulip head on and relative to the bone screw. Inner configurations of the tulip head interact with outer configurations of the collet to lock axial and/or rotational position of the collet within and relative to the tulip head, and thus about the bone screw head. The collet also has a base configured to conform to a top of a bone screw, wherein the collet is configured to support the bone screw and the tulip head when a spine rod is fixed in the tulip head.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
80.
Lateral spine plate with set screw locking of bone screws
A lateral spine implant has a plate, configured bone screws, and configured setscrews providing locking of bone screw movement. The plate has at least two identically configured bone screw bores, each one with a spherical seat at a bottom opening, and threads around the inner circumference of a top opening. Each setscrew has a cylindrical body with external threads that mate with inner threads of the bone screw bore in order to affix the setscrew to the plate. A threaded spherical pocket is provided in a bottom of the setscrew body which conjoins with the spherical bone screw head to secure the setscrew with the bone screw head, fixing bone screw orientation/angulation. The bone screw head has a formation or formations about at least a portion of its exterior circumference that cooperate with the threads of the spherical pocket of the plate in order to fix bone screw orientation/angulation.
An adjustable implant includes a body portion including a first end, a second end including a bull nose, and a sidewall extending from the first end to the second end, a hook coupled to the body portion, the hook including a first hook portion extending from the body portion in a first direction, and a second hook portion extending from the first hook portion in a second direction that is different from the first direction, a first wing coupled to the first end of the body portion, and a second wing coupled to the body portion such that the distance between the first wing and the second wing is adjustable by a user, wherein the first and second wings include inward facing surfaces configured to be positioned adjacent portions of bone of a patient.
A plate and an installation tool are provided for preventing a spinal facet joint implant from expulsing from its implant location between a superior and an inferior vertebra. A k-wire is used in cooperation with the plate and installation tool to guide them to the desired location. The plate includes a central threaded bore situated between one or two superior bone screw or bone connection barb bores and one or two inferior bone screw or bone connection barb bores. The installation tool includes a threaded plug at one end for receipt by the plate's central threaded bore for releasably holding the plate during installation. The installation tool has a superior structure and an inferior structure that can be a cannula or tang depending on the plate's form.
A lateral spine implant has a lateral spine cage and an associated lateral spine plate with one or more folding vertebral attachment arms, each arm configured for attachment to vertebral bone. The ability of the one or more arms to fold allows the lateral spine plate to be inserted/implanted at a lower profile height than traditional lateral spine plates. The lateral spine plate is meant to be used at times of intended or unintended compromise of the anterior longitudinal ligament (ALL) to prevent interbody cage migration, but may be adapted for any lateral plating application. Once expanded, each attachment arm is configured to receive a bone screw for securing the attachment arm to a vertebra, the bone screw retained by rotating cam lock nuts of the attachment arm.
An expandable implant includes a base member, an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position, a control assembly including a control shaft, wherein manipulation of the control shaft causes relative movement of the adjustable member relative to the base member, wherein the base member and the adjustable member are coupled together at least in part via the control assembly such that the control shaft is rotationally fixed relative to the base member and the adjustable member, and the adjustable member is resiliently compressible relative to the base member.
An expandable implant includes an upper main support, a lower main support coupled to the upper main support, an upper pivoting support, wherein the upper pivoting support is rotatably coupled to the upper main support, a lower pivoting support adjustably coupled to the upper pivoting support and rotatably coupled to the lower main support, and a control assembly configured to control relative movement between the upper main support and the lower main support. The control assembly includes a first control member configured to engage the upper main support and the lower main support, a second control member configured to engage the upper main support and the lower main support, and a control shaft configured to be received by the first control member and the second control member, wherein manipulation of the control shaft causes relative movement between the upper main support and the lower main support.
An expandable implant includes a base member, an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position, a control assembly including a control shaft, wherein manipulation of the control shaft causes relative movement of the adjustable member relative to the base member, wherein the base member and the adjustable member are coupled together at least in part via the control assembly such that the control shaft is rotationally fixed relative to the base member and the adjustable member, and the adjustable member is resiliently compressible relative to the base member.
An expandable implant includes an upper portion configured to engage a first portion of bone, a bottom portion configured to engage a second portion of bone, a control assembly coupled to the upper portion and the bottom portion and configured to control relative movement between the upper portion and the bottom portion, wherein the control assembly includes a front portion and a control member, wherein the front portion has an aperture configured to receive the control member, wherein the control member includes a head, and wherein a portion of the head is positioned outside of the aperture as the implant is expanded between a first, collapsed orientation and a second, expanded orientation.
A spine implant for an ALIF procedure includes anchoring members being either a bone screw or flexible barb, each having a head on one end of a shaft, and a tip on another end of the shaft. The spine implant includes a porous cage having a front, rear, central cavity, and three angled bores in the front that extend into the central cavity configured to receive one of the plurality of anchoring members such that the tip of the anchoring member extends from one or another side of the cavity with its head retained in the front. The spine implant further includes two retention members configured for insertion into the front such that a portion of the two retention members are positioned over the heads of two, adjacent anchoring members to inhibit bone anchor backout via cam action between the retention member and the heads of the anchoring members.
A spine implant (10) for an ALIF procedure includes anchoring members (63) being either a bone screw or flexible barb, each having a head (19) on one end of a shaft, and a tip on another end of the shaft. The spine implant includes a porous cage (13) having a front, rear, central cavity, and three angled bores in the front that extend into the central cavity configured to receive one of the plurality of anchoring members such that the tip of the anchoring member extends from one or another side of the cavity with its head retained, in the front. The spine implant further includes two retention members (21) configured for insertion into the front such that a portion of the two retention members are positioned over the heads of two, adjacent anchoring members to inhibit bone anchor backout via cam action between the retention member and the heads of the anchoring members.
A spine fixation assembly has a polyaxial spine screw rod holder for a first spine rod and a second rod holder for a second spine rod, the second rod holder is linked to the polyaxial spine screw rod holder via a connector, the connector extending radially outward from the polyaxial spine screw rod holder such that the second rod holder is spatially separated from and offset relative to the polyaxial spine screw rod holder. The polyaxial spine screw rod holder defines a first rod seat that holds the first spine rod. The first spine rod has a first longitudinal axis. The second rod holder defines a second rod seat that holds a second spine rod. The second rod has a second longitudinal axis. The second rod holder is oriented relative to the polyaxial spine screw rod holder by the connector at an offset (angle).
A spine fixation assembly has a polyaxial spine screw rod holder for a first spine rod and a second rod holder for a second spine rod, the second rod holder is linked to the polyaxial spine screw rod holder via a connector, the connector extending radially outward from the polyaxial spine screw rod holder such that the second rod holder is spatially separated from and offset relative to the polyaxial spine screw rod holder. The polyaxial spine screw rod holder defines a first rod seat that holds the first spine rod. The first spine rod has a first longitudinal axis. The second rod holder defines a second rod seat that holds a second spine rod. The second rod has a second longitudinal axis. The second rod holder is oriented relative to the polyaxial spine screw rod holder by the connector at an offset (angle).
A spine implant (e.g., for a TLIF surgical procedure) is configured to be steered into place during implantation in conjunction with a complementary insertion instrument. The cage of the implant is constrained to a limited range of rotation about a post carried by the cage. The insertion instrument is configured to hold the post while controllably rotating the cage relative to the post in order to angularly position the implant during implantation. Range of rotational motion is controlled by the configuration of a groove in the post. A retaining pin of the implant extends from the cage into the groove of the post to rotationally connect the cage to the post.
A spine implant for use in spinal facet joint fixation or to connect distracted portions of a vertebral lamina in a laminoplasty through use or non-use of a spacer. One or two bone screw plates are angularly adjustable relative to a base plate for attachment by bone screws to vertebral bone. One form of the spine implant has a base plate, a first plate pivotally connected to the base plate for angular adjustment relative to the base plate and configured to hold one or two bone screws for attaching the first plate to first vertebral bone, and a second plate configured to hold two bone screws for attaching the second plate to second vertebral bone. The second plate may be pivotally connected to the body for angular adjustment of the second plate relative to the base plate or fixed to the base plate at a predetermined angle.
A modular polyaxial bone screw includes a poly-axial bone screw, a polyaxial tulip head, and a collet disposed within the tulip head, the collet interacting with the bone screw and tulip head providing an interference fit with the bone screw head to lock orientation of the tulip head on and relative to the bone screw. Inner configurations of the tulip head interact with outer configurations of the collet to lock axial and/or rotational position of the collet within and relative to the tulip head, and thus about the bone screw head. The collet also has a resilient, tapered base with a plurality of slots in and about its end that allow the end to splay outwardly over and upon the head of the bone screw to create a snap or frictional interference fit between the splayed collet and the bone screw head when a spine rod is fixed in the tulip head.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
95.
Facet wedge, wedge blocking plate and method of installation
An implant and method for spinal facet joint stabilization uses a wedge and plate adapted to accept prongs of a surgical instrument for installing the implant into a posterior spinal facet joint. The wedge has an anterior end with a threaded bore. A notch in each lateral side of the plate aligns with a groove in each lateral side of the wedge. Each notch and groove pair receives a prong of the surgical instrument to hold the wedge and plate during implantation. A superior tube of the surgical instrument supports a superior rod having an end configured for installing a bone screw attaching the plate to the superior vertebra of the spinal facet joint. An inferior tube of the surgical instrument supports an inferior rod having an end configured to attach to the threaded bore of the wedge along with the plate during introduction of the implant into the spinal facet joint, and installing the set screw to attach the plate to the wedge.
An implant includes a plurality of anchoring members and an interbody device. The interbody device includes a front, a rear, a first lateral side, a second lateral side, a central cavity, and a plurality of bores each configured to receive the plurality of anchoring members. The interbody device further includes a porous portion and a solid portion, the solid portion having a higher density than the porous portion. The solid portion substantially surrounds the porous portion on the lateral outer portions of the front, rear, first lateral side, and second lateral side.
An implant (10) for spinal facet joint stabilization comprises a wedge (12) and plate (14) adapted to accept prongs (67, 68) of a surgical instrument (60) for installing the implant into a posterior spinal facet joint. The wedge has an anterior end with a threaded bore (39). A notch (55, 57) in each lateral side (47, 48) of the plate aligns with a groove (40, 41) in each lateral side (35, 36) of the wedge. Each notch and groove pair receives a prong of the surgical instrument to hold the wedge and plate during implantation. A superior tube of the surgical instrument supports a superior rod having an end configured for installing a bone screw attaching the plate to the superior vertebra of the spinal facet joint. An inferior tube of the surgical instrument supports an inferior rod having an end configured to attach to the threaded bore of the wedge along with the plate during introduction of the implant into the spinal facet joint, and installing the set screw to attach the plate to the wedge.
A kit for installing a spine implant includes an installation tool and a spine implant. The spine implant includes a body having a cavity extending through the body, a channel extending a first length along the first lateral side, a bore in communication with the cavity, a superior blade guide, and an inferior blade guide. The body also includes a first blade situated on the superior blade guide and movable along the superior blade guide after implantation of the, and a second blade situated on the inferior blade movable along the inferior blade guide after implantation of the body. The installation tool includes a handle, a hollow shaft connected to the handle, a pusher rod configured to extend through the hollow shaft and extend the first and second blades, and a graft rod configured to extend through the hollow shaft and introduce graft material into the spine implant.
