An apparatus, system and method for a phacoemulsification handpiece. Included are: at least a first segment having a longitudinal axis, and a first end and a second end, wherein at least aspiration, irrigation and power inputs enter the first end; a second segment along the longitudinal axis and comprising, at a distalmost portion thereof from the first segment, a needle powered by the power input, an aspiration output, and an irrigation output; a rotating coupler capable of coupling the second end of the first segment and the second segment to enable independent axial rotation about the longitudinal axis of the first segment from the second segment; and a plurality of flexible tubing passing substantially along the longitudinal axis within both the first segment and the second segment. The plurality of flexible tubing flexes within the first and second segments and within the rotating coupler so as not to bind during the independent axial rotation.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A61B 17/00 - Surgical instruments, devices or methods
A phacoemulsification valve for controlling flow of eye fluid, consisting of an enclosure, a first lumen within the enclosure, having a first and a second termination, a second lumen within the enclosure, intersecting the first lumen, so that the first lumen separates the second lumen into a first and a second section, and a pin, that slides within the first lumen between a first position, wherein the pin prevents transfer of the eye fluid between the first and second sections and a second position, wherein the pin permits transfer of the eye fluid between the first and second sections. The valve also includes a first coil, proximate to the first termination, which when energized transfers the pin between the first and second positions, and a second coil, positioned in proximity to the second termination, which when energized transfers the pin between the second and first positions.
A phacoemulsification valve for controlling flow of eye fluid, consisting of an enclosure, a first lumen within the enclosure, having a first and a second termination, a second lumen within the enclosure, intersecting the first lumen, so that the first lumen separates the second lumen into a first and a second section, and a pin, that slides within the first lumen between a first position, wherein the pin prevents transfer of the eye fluid between the first and second sections and a second position, wherein the pin permits transfer of the eye fluid between the first and second sections. The valve also includes a first coil, proximate to the first termination, which when energized transfers the pin between the first and second positions, and a second coil, positioned in proximity to the second termination, which when energized transfers the pin between the second and first positions.
An anti-vacuum surge (AVS) cartridge includes a solenoid valve with a magnetic plunger having parallel flattened surfaces, in a valve cavity of a rectangular or other similar cross section. The flattened surfaces of the plunger are oppositely disposed from each other and are in line with the flow path through the aspiration channel of the AVS cartridge.
F16K 3/26 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
F16K 31/08 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet using a permanent magnet
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
5.
ANTI-VACUUM SURGE MODULE WITH RECTANGULAR VALVE CHAMBER
An anti-vacuum surge (AVS) cartridge includes a solenoid valve with a magnetic plunger having parallel flattened surfaces, in a valve cavity of a rectangular or other similar cross section. The flattened surfaces of the plunger are oppositely disposed from each other and are in line with the flow path through the aspiration channel of the AVS cartridge.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
F16K 31/08 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet using a permanent magnet
An apparatus includes a base, including two motors and a mechanical coupling mechanism, and a cartridge shaped to define two stators and respective pairs of ports in fluidic communication with the stators. The cartridge is removably insertable into the base and includes two rotors disposed, respectively, within the stators. The mechanical coupling mechanism is configured to mechanically couple the rotors to the motors, respectively, such that, following insertion of the cartridge into the base, the motors rotate the rotors, thereby pumping fluid through the pairs of ports. Other embodiments are also described.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
F04B 9/02 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
F04B 15/00 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
F04C 2/107 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston typePumping installations
F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
A phacoemulsification simulation apparatus includes a trigger device, at least two sensors, and a processor. The trigger device configured to apply, to fluid at an inlet of a needle of a phacoemulsifier, a pressure profile as a function of time in response to an input waveform. The at least two sensors are configured to measure a pressure of the fluid at respective points in the phacoemulsification simulation apparatus. The processor is configured to (a) drive the trigger device with the input waveform, thereby causing the trigger device to apply the pressure profile to the inlet while the fluid is aspirated via an aspiration line, (b) receive measurements of the pressure of the fluid from the at least two sensors, and (c) analyze an aspiration performance of the phacoemulsifier in response to the measurements.
A61B 17/00 - Surgical instruments, devices or methods
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A phacoemulsification apparatus includes an ultrasound transmitter, an irrigation-aspiration tool, a robotic arm, and a processor. The ultrasound transmitter is configured to generate and focus an ultrasound beam into a lens capsule of an eye of a patient, to emulsify a lens of the eye. The irrigation-aspiration tool having a distal end including an outlet of an irrigation channel for flowing irrigation fluid into the lens capsule, and an inlet of an aspiration channel for removing material from the lens capsule. The robotic arm is configured to move the distal end of the irrigation-aspiration tool inside the lens capsule. The processor is configured to control the ultrasound transmitter to irradiate one or more target locations in the eye capsule with the focused ultrasound beam, and control the robotic arm to move the distal end of the irrigation-aspiration tool in coordination with the target locations irradiated by the ultrasound transmitter.
Systems and methods for sensing tissue in a phacoemulsification procedure are provided herein. A method may include generating a sensing signal through a frequency range centered at a local resonant frequency of an ultrasonic handpiece and measuring impedance characteristics of the signal at a distal end of a needle of an ultrasonic handpiece. A method may further include comparing the measured impedance characteristics of the generated sensing signal with one or more stored impedance profiles. A method may further include classifying, based on the comparison between the measured impedance characteristics and the stored one or more impedance profiles, a medium contacting the distal end of the needle. A method may further include controlling an output of the ultrasonic handpiece based on the classification of the medium contacting the tip of the needle.
A system, method and computer program product, the system comprising : a phacoemulsification probe having a needle at its distal end, the needle configured to be inserted into an eye of a patient; a pressure sensor; and a processor, configured to repeatedly: obtain a plurality of pressure values taken by the pressure sensor, each of the plurality of pressure values indicating an intraocular pressure (IOP) measurement taken during a surgical procedure; calculate an overall measurement for the surgical procedure based on the pressure values; and displaying on a display device a graphic representation of the overall measurement.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
11.
METHOD AND SYSTEM FOR EVALUATING PERFORMANCE OF INTRA OCULAR PRESSURE SENSORS AND MAINTENANCE SYSTEMS
A system, method and computer program product, the system comprising: a phacoemulsification probe having a needle at its distal end, the needle configured to be inserted into an eye of a patient; a pressure sensor, and a processor, configured to repeatedly: obtain a plurality of pressure values taken by the pressure sensor, each of the plurality of pressure values indicating an intraocular pressure (IOP) measurement taken during a surgical procedure; calculate an overall measurement for the surgical procedure based on the pressure values; and displaying on a display device a graphic representation of the overall measurement.
A surgical system for the treatment of ocular problems including a surgical cassette, a surgical console operatively coupled to the surgical cassette and further including a processor, a vacuum source positioned in-line with a vacuum regulator and a mass air flow controller, and a tank fluidly connected to the mass air flow controller, wherein the processor is configured to calculate an air flow set point in accordance with a received at least one user-defined fluid flow rate set point; and wherein the mass air flow controller modulates air flow from the tank to the vacuum source in accordance with the received the air flow set point to meet a user-defined fluid flow rate.
Systems and methods for sensing tissue in a phacoemulsification procedure are provided herein. A method may include generating a sensing signal through a frequency range centered at a local resonant frequency of an ultrasonic handpiece and measuring impedance characteristics of the signal at a distal end of a needle of an ultrasonic handpiece. A method may further include comparing the measured impedance characteristics of the generated sensing signal with one or more stored impedance profiles. A method may further include classifying, based on the comparison between the measured impedance characteristics and the stored one or more impedance profiles, a medium contacting the distal end of the needle. A method may further include controlling an output of the ultrasonic handpiece based on the classification of the medium contacting the tip of the needle.
A system for delivering an intraocular lens (IOL) is disclosed, including: a handpiece including a barrel defining an elongate passage, a pushrod disposed inside the elongate passage, and a plunger coupled to the pushrod; and a delivery unit coupled to a first end of the barrel, the delivery unit including a delivery tube and a lens holder coupled to the delivery tube, the lens holder including a lead haptic shelf arranged to receive a lead haptic of an IOL that is contained inside the lens holder, wherein the lead haptic shelf is configured to fold the lead haptic of the IOL over a body of the IOL while permitting the IOL to travel under the lead haptic shelf when the IOL is displaced from the lens holder to the delivery tube by the pushrod during delivery of the IOL into a patient's eye.
A computer-based automated phacoemulsification method is disclosed. The method includes determining a vacuum measurement based on a reading from a sensor coupled with an aspiration line; comparing the vacuum measurement to the at least one vacuum threshold; and providing an ultrasound power based on the comparison of the vacuum measurement to the at least one vacuum threshold.
A needle for use with a phacoemulsification handpiece is disclosed. The needle may compromise an elongated needle body having a proximal end and a distal end terminating at a junction point; a first tine having a proximal end and a distal end terminating in a first tip; a second tine having a proximal end and a distal end terminating in a second tip, wherein the proximal end of the first tine and the proximal end of the second tine are each connected at the junction point.
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
Phacoemulsification apparatus, consisting of a phacoemulsification probe having a distal end including a combination of a needle and a sleeve, the combination being configured for insertion into an eye of a patient, and being configured for fluid transfer between the eye and the combination. The apparatus has an ultrasound actuator configured to vibrate the needle, a first sensor configured to output a first indication indicative of physical contact between the needle and a lens of the eye, and a second sensor configured to output a second indication indicative of a parameter associated with the fluid transferred by the combination. A microcontroller is configured to receive the first and the second indication, to calculate a threshold for the first indication in response to the second indication, and to activate and deactivate the ultrasound actuator in response to the first indication crossing the threshold.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
20.
SYSTEM AND METHOD FOR REMOVAL OF CORNEAL SPECULAR REFLECTIONS IN EYE IMAGING
Methods and devices are disclosed for pulsed LED illumination, image capture processing to remove corneal specular reflections in torsion images for iris registration. A system may first and second infrared LED light sources and a torsion camera to capture images during illumination of a patient's eye based on a pulsed synchronization signal. Within a period of time, a first image is captured having a reflection from the first LED light source and then a second image is captured having a reflection from the second LED light source. The first and second images are processed to remove respective areas having corneal specular reflections and combined into a third image not including any specular reflections. Various embodiments are disclosed including implementations with excimer and femtosecond laser eye surgery platforms.
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
A61B 90/30 - Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
A61F 9/008 - Methods or devices for eye surgery using laser
Phacoemulsification apparatus, consisting of a phacoemulsification probe having a distal end including a combination of a needle and a sleeve, the combination being configured for insertion into an eye of a patient, and being configured for fluid transfer between the eye and the combination. The apparatus has an ultrasound actuator configured to vibrate the needle, a first sensor configured to output a first indication indicative of physical contact between the needle and a lens of the eye, and a second sensor configured to output a second indication indicative of a parameter associated with the fluid transferred by the combination. A microcontroller is configured to receive the first and the second indication, to calculate a threshold for the first indication in response to the second indication, and to activate and deactivate the ultrasound actuator in response to the first indication crossing the threshold.
A needle for use with a phacoemulsification handpiece is disclosed. The needle may compromise an elongated needle body having a proximal end and a distal end terminating at a junction point; a first tine having a proximal end and a distal end terminating in a first tip; a second tine having a proximal end and a distal end terminating in a second tip, wherein the proximal end of the first tine and the proximal end of the second tine are each connected at the junction point.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
23.
PHACOEMULSIFICATION VACUUM SURGE DETECTION WITH CORRELATED VACUUM AND PRESSURE READINGS
A method includes calculating in real-time a correlation between vacuum readings and pressure readings of respective aspiration and irrigation channels of a phacoemulsification handpiece engaged in a phacoemulsification procedure in an eye. Upon detecting an increase in the vacuum readings and an increase in the pressure readings, a current level of the correlation is checked. Provided that the current level of the correlation is above a given value, an anti-vacuum surge (AVS) mechanism is activated, the AVS mechanism fluidly coupled with at least one of the irrigation and aspiration channels.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
Disclosed are hydrophobic, acrylic materials having both high refractive index and a high Abbe number. The materials may have an internal wetting agent, are well suited for use as implantable ophthalmic devices, and have a refractive index which may be edited through application of energy. When used for an intraocular lens, the high refractive index allows for a thin lens which compresses to allow a small incision size.
C08L 33/26 - Homopolymers or copolymers of acrylamide or methacrylamide
C08L 39/06 - Homopolymers or copolymers of N-vinyl-pyrrolidones
C08L 83/06 - Polysiloxanes containing silicon bound to oxygen-containing groups
G02B 1/00 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A method includes calculating in real-time a correlation between vacuum readings and pressure readings of respective aspiration and irrigation channels of a phacoemulsification handpiece engaged in a phacoemulsification procedure in an eye. Upon detecting an increase in the vacuum readings and an increase in the pressure readings, a current level of the correlation is checked. Provided that the current level of the correlation is above a given value, an anti-vacuum surge (AVS) mechanism is activated, the AVS mechanism fluidly coupled with at least one of the irrigation and aspiration channels.
A system includes an ocular surgical handpiece including an irrigation conduit. The system further includes an irrigation tube, configured to establish fluidic communication between a supply of irrigation fluid and the irrigation conduit, such that the irrigation fluid flows distally from the supply, via the irrigation tube and the irrigation conduit, to an eye of a patient. The system further includes a pressure regulator, configured to regulate an intraocular pressure of the eye by regulating the flow of the irrigation fluid within the irrigation conduit, within the irrigation tube, or between the irrigation conduit and the irrigation tube. Other examples are also described.
A system includes an ocular surgical handpiece including an irrigation conduit. The system further includes an irrigation tube, configured to establish fluidic communication between a supply of irrigation fluid and the irrigation conduit, such that the irrigation fluid flows distally from the supply, via the irrigation tube and the irrigation conduit, to an eye of a patient. The system further includes a pressure regulator, configured to regulate an intraocular pressure of the eye by regulating the flow of the irrigation fluid within the irrigation conduit, within the irrigation tube, or between the irrigation conduit and the irrigation tube. Other examples are also described.
A system includes an anti-vacuum surge (AVS) mechanism and a processor. The AVS mechanism is configured to suppress a vacuum surge during the phacoemulsification procedure. The processor is configured to (i) during the phacoemulsification procedure, receive pressure readings from one or more sensors, (ii) using the pressure readings, estimate an occurrence of a vacuum surge, and (iii) upon estimating the occurrence of the vacuum surge, activate the AVS mechanism in a predefined pulsed manner to suppress the vacuum surge.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
An apparatus includes a compressor, which is configured to compress air and includes an input port and an output port, an output conduit coupled with the output port and configured to receive the air from the compressor, an input conduit coupled with the input port, a switching valve coupled with the output conduit and with the input conduit, and configured to couple a pneumatic surgical cutting tool, alternatingly, with the output conduit and with the input conduit, and a supply conduit coupled with the input conduit and configured to supply the air, to the input conduit, from a surrounding environment. The supply conduit includes a one- way valve configured to inhibit the air from escaping from the input conduit to the surrounding environment when the compressor is idle. Other examples are also described.
A system includes an anti-vacuum surge (AVS) mechanism and a processor. The AVS mechanism is configured to suppress a vacuum surge during the phacoemulsification procedure. The processor is configured to (i) during the phacoemulsification procedure, receive pressure readings from one or more sensors, (ii) using the pressure readings, estimate an occurrence of a vacuum surge, and (iii) upon estimating the occurrence of the vacuum surge, activate the AVS mechanism in a predefined pulsed manner to suppress the vacuum surge.
A phacoemulsification system and an operation method thereof, the system including a handpiece having a piezoelectric element and a needle, wherein the needle is configured to be inserted into an eye and to be vibrated by the piezoelectric element to emulsify a lens of the eye; an irrigation module configured to supply a flow of irrigation fluid into the eye; an aspiration module configured for removing material from the eye; image capturing means for acquiring images which include the eye; an image analysis module configured to determine whether at least a distal tip of the needle is present in the captured images; and a processor, which is configured to receive a determination from the image analysis module as to whether the distal tip of the needle is present in the captured images, and to control operation of at least the irrigation module according to the determination.
An apparatus includes a compressor, which is configured to compress air and includes an input port and an output port, an output conduit coupled with the output port and configured to receive the air from the compressor, an input conduit coupled with the input port, a switching valve coupled with the output conduit and with the input conduit, and configured to couple a pneumatic surgical cutting tool, alternatingly, with the output conduit and with the input conduit, and a supply conduit coupled with the input conduit and configured to supply the air, to the input conduit, from a surrounding environment. The supply conduit includes a one-way valve configured to inhibit the air from escaping from the input conduit to the surrounding environment when the compressor is idle. Other examples are also described.
A phacoemulsification system, including a probe having an irrigation channel and an aspiration channel, and a distal end including a needle and a sleeve insertable into an eye. There is an irrigation pump pumping irrigation fluid via the irrigation channel into the eye, and an aspiration pump pumping aspiration fluid via the aspiration channel from the eye. A first pressure sensor is coupled with the irrigation fluid and provides a first signal of intraocular pressure ( TOP ) in the eye; a second pressure sensor is coupled with the aspiration fluid and provides a second signal of the TOP. A system processor receives the first and second signals, and responsively to at least one of the signals, identifies at least one frequency and an associated at least one phase of the TOP, and pumps at least one of the pumps at the identified frequency and in antiphase to the identified phase.
A phacoemulsification system, comprising: a handpiece comprising a piezoelectric element and a needle, the needle configured to be inserted into an eye and to be vibrated by the piezoelectric element to emulsify a lens of the eye; an irrigation module configured to supply a flow of irrigation fluid into the eye; an aspiration module configured for removing material from the eye; circuitry configured to determine whether at least a distal tip of the needle is inside the eye or is outside the eye; and a processor, which is configured to receive a determination from the circuitry as to whether the distal tip of the needle is inside or outside the eye, and to control operation of at least the irrigation module according to the determination.
A phacoemulsification system, comprising: a handpiece comprising a piezoelectric element and a needle, the needle configured to be inserted into an eye and to be vibrated by the piezoelectric element to emulsify a lens of the eye; an irrigation module configured to supply a flow of irrigation fluid into the eye; an aspiration module configured for removing material from the eye; circuitry configured to determine whether at least a distal tip of the needle is inside the eye or is outside the eye; and a processor, which is configured to receive a determination from the circuitry as to whether the distal tip of the needle is inside or outside the eye, and to control operation of at least the irrigation module according to the determination.
A phacoemulsification system and an operation method thereof, the system including a handpiece having a piezoelectric element and a needle, wherein the needle is configured to be inserted into an eye and to be vibrated by the piezoelectric element to emulsify a lens of the eye; an irrigation module configured to supply a flow of irrigation fluid into the eye; an aspiration module configured for removing material from the eye; image capturing means for acquiring images which include the eye; an image analysis module configured to determine whether at least a distal tip of the needle is present in the captured images; and a processor, which is configured to receive a determination from the image analysis module as to whether the distal tip of the needle is present in the captured images, and to control operation of at least the irrigation module according to the determination.
A phacoemulsification system, including a probe having an irrigation channel and an aspiration channel, and a distal end including a needle and a sleeve insertable into an eye. There is an irrigation pump pumping irrigation fluid via the irrigation channel into the eye, and an aspiration pump pumping aspiration fluid via the aspiration channel from the eye. A first pressure sensor is coupled with the irrigation fluid and provides a first signal of intraocular pressure (IOP) in the eye; a second pressure sensor is coupled with the aspiration fluid and provides a second signal of the IOP. A system processor receives the first and second signals, and responsively to at least one of the signals, identifies at least one frequency and an associated at least one phase of the IOP, and pumps at least one of the pumps at the identified frequency and in antiphase to the identified phase.
A system for learning actual phacoemulsification energy setpoints at the time of occlusion breaks during ophthalmic surgery. Phacoemulsification energy setpoints may be recorded over different periods of time, such as during current cases and over a lifetime of cases. The recorded data would then be used to determine future phacoemulsification energy setting amounts.
A61B 17/00 - Surgical instruments, devices or methods
A61B 34/00 - Computer-aided surgeryManipulators or robots specially adapted for use in surgery
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
An apparatus for mechanically coupling a motor to a rotor includes an outer ring including an inner surface shaped to define multiple recesses, an inner ring disposed within the outer ring and shaped to define multiple compartments having respective outer openings, which face the outer ring, and respective inner openings opposite the outer openings, and multiple gripping elements disposed within the compartments, respectively. The inner ring is configured to receive the rotor while the compartments are aligned with the of recesses, by virtue of the gripping elements sitting at least partially within the recesses. The outer ring is configured to couple with a shaft coupled with the motor such that rotation of the shaft by the motor causes the compartments to become misaligned with the recesses, thereby causing the outer ring to push the gripping elements, through the outer openings, against the rotor, through the inner openings.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
F16D 15/00 - Clutches with wedging balls or rollers or with other wedgeable separate clutching members
F16D 41/067 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
40.
Controlling vibration patterns of a phacoemulsification needle
A system includes a needle, an actuator assembly and a generator. The needle is configured to be vibrated so as to emulsify a lens of an eye. The actuator assembly, includes a first actuator, a second actuator and a third actuator, which are distributed around a longitudinal axis of the needle and are configured to vibrate along the longitudinal axis in response to a first driving signal, a second driving signal and a third driving signal, respectively. The generator is configured to generate the first driving signal, the second driving signal and the third driving signal, so as to vibrate the needle in accordance with a predefined pattern.
A phacoemulsification system, method and computer program product, the system comprising: a phacoemulsification probe having at its distal end a needle to be inserted into an eye, the probe comprising an ultrasonic transducer; an optical fiber transferring light from a source and having a distal end positioned in proximity to the tip of the needle for emitting light of predetermined frequency or pattern; a light sensor for detecting the light; and a processor, for repeatedly: receive from the sensor an indication of the detected light; determine whether the detected light complies with a condition indicating contact between the needle and a lens of the eye; subject to determining compliance with the condition and that the ultrasonic transducer being inactive, toggle the ultrasonic transducer ON; and subject to determining that the detected light does not comply with the condition and that the ultrasonic transducer being active, toggle the ultrasonic transducer OFF.
A pumping system for a phacoemulsification system, consisting of : a phacoemulsification probe, an irrigation tube providing irrigation fluid into an eye, an irrigation pump pumping the irrigation fluid, an aspiration tube conveying aspiration fluid from the eye, an aspiration pump pumping the aspiration fluid from the eye, an aspiration pump sensor providing a first signal indicating activation of the aspiration pump, and a pressure sensor providing a second signal indicating intraocular pressure ( IOP ) in the eye. A controller receives the first signal and second signals, and in response controls the irrigation pump to alter a registered flow rate of the irrigation fluid to a preset adjusted flow rate until a threshold, dependent on at least one of a time of operation of the irrigation pump at the preset adjusted flow rate and the second signal, is crossed. When crossed the irrigation fluid is pumped at the registered flow rate.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
43.
PRESSURE SENSING ARRAY IN PHACOEMULSIFICATION HANDPIECE
A phacoemulsification system includes a phacoemulsification probe and a processor. The phacoemulsification probe has a distal end configured for insertion into an eye of a patient, the probe including ( i ) an irrigation chanel floor irrigating the eye with irrigation fluid, ( ii ) an aspiration channel for evacuating material from the eye, and ( iii ) at least one sensor array fluidly coupled to at least one of the irrigation channel and the aspiration channel, the at least one sensor array comprising multiple sensors configured to measure a parameter indicative of fluid pressure in the irrigation channel or the aspiration channel. The processor is configured to regulate at least one of irrigation flow and aspiration flow using the measured parameter.
A phacoemulsification system includes a phacoemulsification probe, an aspiration tube and an irrigation tube. The aspiration tube is connectable to the phacoemulsification probe to aspirate a cataract from an eye. The irrigation tube is connectable to the probe and, in one embodiment, has at least one integrated compliant tube section at an end near the phacoemulsification probe. Each integrated compliant tube section is less than 1% of the length of the irrigation tube, has a section diameter larger than a tube diameter of the irrigation tube, and is more compliant than a cornea of the eye. In another embodiment, a compliant tube section is connectable to an end of the irrigation tube and to the probe and is formed of a material more compliant than the irrigation tube.
A phacoemulsification probe includes an irrigation sleeve configured to fit over a hollow aspiration needle and a probe body, the irrigation sleeve to provide a fluid pathway for the flow of irrigation fluid between the needle and the walls of the irrigation sleeve, the sleeve having a distal end insertable into an incision made in an eye, the distal end having ports to release said irrigation fluid into said eye, where the walls of the irrigation sleeve have at least one anti- tortional element longitudinally placed along a length of the irrigation sleeve to provide structural support to prevent twisting of the sleeve and where the at least one anti-tortional element allows flattening of the irrigation sleeve for maneuvering of the sleeve within the eye while preserving the integrity of the incision.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
46.
COMPOSITIONS WITH HIGH REFRACTIVE INDEX AND ABBE NUMBER
Disclosed are co-polymers which are produced from reactive monomer mixtures and which have both high refractive index and a high Abbe number. These materials are well suited for use as implantable ophthalmic devices and have a refractive index which may be edited through application of energy. When used for an intraocular lens, the high refractive index allows for a thin lens which compresses to allow a small incision size.
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A method for assembling a vitrector, including : providing a distal housing portion for the vitrector, a transmission unit driving a needle into oscillation, an assembly pin to be inserted into the transmission unit to fix the needle in position, and a needle casing, having a lumen, the casing enclosing the needle within the lumen. The transmission unit is fixed to the distal housing portion, and the pin is inserted into the transmission unit to fix a distal tip of the needle at a most distal position of the oscillation. The transmission unit is inserted, with the assembly pin inserted, to a predetermined position in the distal housing portion. The casing is inserted into the distal housing portion so that the distal tip butts a termination of the casing. The casing is fixed to the distal housing portion, and the assembly pin is removed from the transmission unit.
Disclosed are compositions which are produced from reactive monomer mixtures and which have both high refractive indexes and high Abbe numbers. These materials are well suited for use as implantable ophthalmic devices and have a refractive index which may be edited through the application of energy. When used for an intraocular lens, the high refractive index allows for a thin lens which compresses easily through a small incision. Some compositions are suitable for use as intraocular lenses, phakic intraocular lenses, contact lenses, orthokeratology lenses, rigid gas permeable lenses, corneal inlays, corneal outlays, or corneal inserts.
A phacoemulsification probe includes an irrigation sleeve configured to fit over a hollow aspiration needle and a probe body, the irrigation sleeve to provide a fluid pathway for the flow of irrigation fluid between the needle and the walls of the irrigation sleeve, the sleeve having a distal end insertable into an incision made in an eye, the distal end having ports to release said irrigation fluid into said eye, where the walls of the irrigation sleeve have at least one anti-tortional element longitudinally placed along a length of the irrigation sleeve to provide structural support to prevent twisting of the sleeve and where the at least one anti-tortional element allows flattening of the irrigation sleeve for maneuvering of the sleeve within the eye while preserving the integrity of the incision.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A phacoemulsification system includes a phacoemulsification probe, an aspiration tube and an irrigation tube. The aspiration tube is connectable to the phacoemulsification probe to aspirate a cataract from an eye. The irrigation tube is connectable to the probe and, in one embodiment, has at least one integrated compliant tube section at an end near the phacoemulsification probe. Each integrated compliant tube section is less than 1% of the length of the irrigation tube, has a section diameter larger than a tube diameter of the irrigation tube, and is more compliant than a cornea of the eye. In another embodiment, a compliant tube section is connectable to an end of the irrigation tube and to the probe and is formed of a material more compliant than the irrigation tube.
Methods and systems provide a disposable cutting section which is removably attachable from a multiple use motor section, to form a handpiece for use in ophthalmic procedures, such as vitrectomies. The motor section includes a motor for driving a needle of the cutting section.
A phacoemulsification system includes a phacoemulsification probe and a processor. The phacoemulsification probe has a distal end configured for insertion into an eye of a patient, the probe including (i) an irrigation channel for irrigating the eye with irrigation fluid, (ii) an aspiration channel for evacuating material from the eye, and (iii) at least one sensor array fluidly coupled to at least one of the irrigation channel and the aspiration channel, the at least one sensor array comprising multiple sensors configured to measure a parameter indicative of fluid pressure in the irrigation channel or the aspiration channel. The processor is configured to regulate at least one of irrigation flow and aspiration flow using the measured parameter.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
53.
STABILIZING INTRA-OCULAR PRESSURE AT ONSET OF ASPIRATION
A pumping system for a phacoemulsification system, consisting of: a phacoemulsification probe, an irrigation tube providing irrigation fluid into an eye, an irrigation pump pumping the irrigation fluid, an aspiration tube conveying aspiration fluid from the eye, an aspiration pump pumping the aspiration fluid from the eye, an aspiration pump sensor providing a first signal indicating activation of the aspiration pump, and a pressure sensor providing a second signal indicating intraocular pressure (IOP) in the eye. A controller receives the first signal and second signals, and in response controls the irrigation pump to alter a registered flow rate of the irrigation fluid to a preset adjusted flow rate until a threshold, dependent on at least one of a time of operation of the irrigation pump at the preset adjusted flow rate and the second signal, is crossed. When crossed the irrigation fluid is pumped at the registered flow rate.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A method for assembling a vitrector, including: providing a distal housing portion for the vitrector, a transmission unit driving a needle into oscillation, an assembly pin to be inserted into the transmission unit to fix the needle in position, and a needle casing, having a lumen, the casing enclosing the needle within the lumen. The transmission unit is fixed to the distal housing portion, and the assembly pin is inserted into the transmission unit to fix a distal tip of the needle at a most distal position of the oscillation. The transmission unit is inserted, with the assembly pin inserted, to a predetermined position in the distal housing portion. The casing is inserted into the distal housing portion so that the distal tip butts a termination of the casing. The casing is fixed to the distal housing portion, and the assembly pin is removed from the transmission unit.
Surgical apparatus, including a needle configured to be inserted into an organ of a human subject, a counterweight, and a needle driver. The needle driver includes a cylindrical cam configured to rotate about a cam axis and having a curved circumferential groove extending around a radial surface of the cam. There is a motor coupled to rotate the cylindrical cam about the cam axis. A first follower is mounted to travel in the groove at a first azimuthal location and is coupled to the needle so as to cause the needle to oscillate at a predefined frequency parallel to the cam axis as the cam rotates. A second follower is coupled to the counterweight and is mounted to travel in the groove at a second azimuthal location selected so as to cause the counterweight to oscillate parallel to the cam axis in antiphase to the needle.
A system includes a user interface and a processor. The user interface is configured to receive a user-selected confidence level of measurement of intraocular pressure ( TOP ) for detecting vacuum surge in a phacoemulsification system. The processor is configured to ( i ) based on the user-selected confidence level, calculate a number of TOP readings needed during phacoemulsification procedure to identify an imminent vacuum surge, ( ii ) during the phacoemulsification procedure, receiving sensor readings of TOP, ( iii ) upon reaching the calculated number of the readings, estimate whether a consistent drop in TOP occurred between the readings, and ( iv) upon estimating a consistent drop in TOP, activate an anti-vacuum surge (AVS ) mechanism to mitigate the imminent vacuum surge.
Methods and systems provide a disposable cutting section which is removably attachable from a multiple use motor section, to form a handpiece for use in ophthalmic procedures, such as vitrectomies. The motor section includes a motor for driving a needle of the cutting section.
A medical visualization apparatus includes two or more imaging devices and a processor. The two or more imaging devices are configured to acquire speckle images of an organ of a patient from multiple different directions. The processor is configured to ( a ) generate from the speckle images a three-dimensional ( 3D ) point cloud of locations, (b ) generate from the 3D point cloud of locations a 3D map of an anatomical surface of the organ, and ( c ) display the 3D map of the anatomical surface according to a requested gazing direction relative to the organ.
A system includes a user interface and a processor. The user interface is configured to receive a user-selected confidence level of measurement of intraocular pressure (IOP) for detecting vacuum surge in a phacoemulsification system. The processor is configured to (i) based on the user-selected confidence level, calculate a number of IOP readings needed during phacoemulsification procedure to identify an imminent vacuum surge, (ii) during the phacoemulsification procedure, receiving sensor readings of IOP, (iii) upon reaching the calculated number of the readings, estimate whether a consistent drop in IOP occurred between the readings, and (iv) upon estimating a consistent drop in IOP, activate an anti-vacuum surge (AVS) mechanism to mitigate the imminent vacuum surge.
A medical visualization apparatus includes two or more imaging devices and a processor. The two or more imaging devices are configured to acquire speckle images of an organ of a patient from multiple different directions. The processor is configured to (a) generate from the speckle images a three-dimensional (3D) point cloud of locations, (b) generate from the 3D point cloud of locations a 3D map of an anatomical surface of the organ, and (c) display the 3D map of the anatomical surface according to a requested gazing direction relative to the organ.
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
Surgical apparatus, including a needle configured to be inserted into an organ of a human subject, a counterweight, and a needle driver. The needle driver includes a cylindrical cam configured to rotate about a cam axis and having a curved circumferential groove extending around a radial surface of the cam. There is a motor coupled to rotate the cylindrical cam about the cam axis. A first follower is mounted to travel in the groove at a first azimuthal location and is coupled to the needle so as to cause the needle to oscillate at a predefined frequency parallel to the cam axis as the cam rotates. A second follower is coupled to the counterweight and is mounted to travel in the groove at a second azimuthal location selected so as to cause the counterweight to oscillate parallel to the cam axis in antiphase to the needle.
Disclosed are compositions which are produced from reactive monomer mixtures and which have both high refractive indexes and high Abbe numbers. These materials are well suited for use as implantable ophthalmic devices and have a refractive index which may be edited through the application of energy. When used for an intraocular lens, the high refractive index allows for a thin lens which compresses easily through a small incision. Some compositions are suitable for use as intraocular lenses, phakic intraocular lenses, contact lenses, orthokeratology lenses, rigid gas permeable lenses, corneal inlays, corneal outlays, or corneal inserts.
C08F 230/08 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
C08L 33/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
C08L 43/04 - Homopolymers or copolymers of monomers containing silicon
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
An apparatus includes a proximal shaft configured to mechanically couple to a motor, a first universal joint, a middle shaft coupled to the proximal shaft via the first universal joint, a housing having a bore, a second universal joint within the bore, a distal shaft coupled to the middle shaft via the second universal joint, and a connector disposed over the distal shaft. The bore limits a downward tilt of the distal shaft such that, as a rotor approaches the distal shaft, the distal shaft becomes axially aligned with the rotor by virtue of the proximal end of the rotor entering the connector or vice versa. A spring connected proximally to the connector and distally to the second universal joint is configured to decompress, thereby reversibly coupling the connector to the proximal end of the rotor, upon the motor rotationally aligning the connector with the proximal end of the rotor.
In one exemplary mode, a phacoemulsification system includes a phacoemulsification probe to be inserted into an eye, an irrigation line to provide irrigation fluid into the eye, an aspiration line to convey aspiration fluid from the eye, an aspiration pump to pump the aspiration fluid from the eye, a pump controller to control a flow direction and rate of the aspiration pump, and an aspiration rate user input device to provide a signal indicative of user actuation of the aspiration rate user input device, wherein the pump controller is configured to receive the signal provided by the aspiration rate user input device, and reverse the flow direction and set the flow rate of the aspiration pump at which to pump the aspiration fluid into the eye, the flow rate in the reverse flow direction being set responsively to an actuation rate at which the aspiration rate user input device is actuated.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
In one exemplary mode, a phacoemulsification system includes a phacoemulsification probe to be inserted into an eye, an irrigation line to provide irrigation fluid into the eye, an aspiration line to convey aspiration fluid from the eye, an aspiration pump to pump the aspiration fluid from the eye, a pump controller to control a flow direction and rate of the aspiration pump, and an aspiration rate user input device to provide a signal indicative of user actuation of the aspiration rate user input device, wherein the pump controller is configured to receive the signal provided by the aspiration rate user input device, and reverse the flow direction and set the flow rate of the aspiration pump at which to pump the aspiration fluid into the eye, the flow rate in the reverse flow direction being set responsively to an actuation rate at which the aspiration rate user input device is actuated.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A phacoemulsification system, method and computer program product, the system comprising: a phacoemulsification probe having at its distal end a needle to be inserted into an eye, the probe comprising an ultrasonic transducer; an optical fiber transferring light from a source and having a distal end positioned in proximity to the tip of the needle for emitting light of predetermined frequency or pattern; a light sensor for detecting the light; and a processor, for repeatedly: receive from the sensor an indication of the detected light; determine whether the detected light complies with a condition indicating contact between the needle and a lens of the eye; subject to determining compliance with the condition and that the ultrasonic transducer being inactive, toggle the ultrasonic transducer ON; and subject to determining that the detected light does not comply with the condition and that the ultrasonic transducer being active, toggle the ultrasonic transducer OFF.
An apparatus includes a proximal shaft configured to mechanically couple to a motor, a first universal joint, a middle shaft coupled to the proximal shaft via the first universal joint, a housing having a bore, a second universal joint within the bore, a distal shaft coupled to the middle shaft via the second universal joint, and a connector disposed over the distal shaft. The bore limits a downward tilt of the distal shaft such that, as a rotor approaches the distal shaft, the distal shaft becomes axially aligned with the rotor by virtue of the proximal end of the rotor entering the connector or vice versa. A spring connected proximally to the connector and distally to the second universal joint is configured to decompress, thereby reversibly coupling the connector to the proximal end of the rotor, upon the motor rotationally aligning the connector with the proximal end of the rotor.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
69.
PHACOEMULSIFICATION PROBE STROKE LENGTH MAXIMIZATION SYSTEM
A phacoemulsification system including a phacoemulsification probe having a probe body, a horn disposed at least partially in the probe body, a needle coupled with the horn and configured to be inserted into an eye, and a piezoelectric actuator disposed in the probe body and configured to vibrate the horn and the needle in a first direction with a stroke length with respect to the probe body; a signal generator configured to generate a drive signal to drive a vibration of the piezoelectric actuator; a stroke measurement apparatus configured to provide indications of the stroke length of the needle over time; and a controller configured to dynamically adjust a frequency of the drive signal so as to maximize the stroke length and maintain mechanical resonance of the needle responsively to the provided indications of the stroke length.
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
In one exemplary mode, a phacoemulsification system includes a phacoemulsification probe, an irrigation tube to provide irrigation fluid into an eye, an irrigation pump to pump irrigation fluid into the eye, an aspiration tube convey aspiration fluid from the eye, an aspiration pump to pump the aspiration fluid from the eye, a sensor to provide a signal indicative of current intraocular pressure in the eye, and a pump controller to receive the signal provided by the sensor, compute a value of intraocular pressure at a future time responsively to the provided signal and an indicator of change in the intraocular pressure over time, and control the irrigation pump to adjust a flow rate of the irrigation fluid to maintain the intraocular pressure at a given intraocular pressure responsively to the computed value of the intraocular pressure at the future time.
A phacoemulsification method includes specifying a target intraocular pressure (IOP) level to be maintained in an eye of a patient during a phacoemulsification procedure. A phacoemulsification probe is inserted into the eye. The eye is irrigated with irrigation fluid and material is aspired from the eye while aiming to maintain the target IOP level, including controlling IOP fluctuations by (i) when an actual IOP in the eye is in a defined high range, limiting the IOP fluctuations to a given value, and (ii) when the actual IOP is in a defined low range that is lower than the high range, allowing the IOP fluctuations to exceed the given value.
A phacoemulsification method includes specifying a target intraocular pressure (IOP) level to be maintained in an eye of a patient during a phacoemulsification procedure. A phacoemulsification probe is inserted into the eye. The eye is irrigated with irrigation fluid and material is aspired from the eye while aiming to maintain the target IOP level, including controlling IOP fluctuations by (i) when an actual IOP in the eye is in a defined high range, limiting the IOP fluctuations to a given value, and (ii) when the actual IOP is in a defined low range that is lower than the high range, allowing the IOP fluctuations to exceed the given value.
In one exemplary mode, a phacoemulsification system includes a phacoemulsification probe, an irrigation tube to provide irrigation fluid into an eye, an irrigation pump to pump irrigation fluid into the eye, an aspiration tube convey aspiration fluid from the eye, an aspiration pump to pump the aspiration fluid from the eye, a sensor to provide a signal indicative of current intraocular pressure in the eye, and a pump controller to receive the signal provided by the sensor, compute a value of intraocular pressure at a future time responsively to the provided signal and an indicator of change in the intraocular pressure over time, and control the irrigation pump to adjust a flow rate of the irrigation fluid to maintain the intraocular pressure at a given intraocular pressure responsively to the computed value of the intraocular pressure at the future time.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A phacoemulsification system, method and computer program product, the system comprising: a phacoemulsification probe having a needle at its distal end, the needle configured to be inserted into an eye of a patient, the probe comprising an ultrasonic transducer; a signal generator, meter, and impedance determination module for determining an impedance between a tip of the needle and an electrode attached to the patient; and a processor, configured to repeatedly: obtain the impedance from the impedance detector; subject to the impedance complying with a condition and the ultrasonic transducer being inactive, toggling the ultrasonic transducer to transmit ultrasonic waves; and subject to the impedance not complying with a condition and the ultrasonic transducer being active, toggling the ultrasonic transducer to stop transmitting ultrasonic waves.
A phacoemulsification system, method and computer program product, the system comprising: a phacoemulsification probe having a needle at its distal end, the needle configured to be inserted into an eye of a patient, the probe comprising an ultrasonic transducer; a signal generator, meter, and impedance determination module for determining an impedance between a tip of the needle and an electrode attached to the patient; and a processor, configured to repeatedly: obtain the impedance from the impedance detector; subject to the impedance complying with a condition and the ultrasonic transducer being inactive, toggling the ultrasonic transducer to transmit ultrasonic waves; and subject to the impedance not complying with a condition and the ultrasonic transducer being active, toggling the ultrasonic transducer to stop transmitting ultrasonic waves.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A method for providing automatic placement of a lens (110) in a cartridge (116) is provided. The method includes seizing, by a nozzle head (108) of a lifting tool (105), the lens (110) from a pick position (113) of a platform (114) based on an air flow (109) through the nozzle head (108) and depositing, by the lifting tool (105), the lens (110) at a delivery point (115) in the cartridge (116) by changing the air flow (109) through the nozzle head (108). The method includes determining, by a processor coupled to the lifting tool (105), a location of a haptic (111) of the lens (110) with respect to a feature (117) of the cartridge (116). The method includes adjusting, by the lifting tool (105), the haptic (111) from the location to a target orientation on the cartridge (116) when the location of the haptic (111) is determined to be misaligned with the feature (117). The method can be implemented as an apparatus, a system, and/or a computer program product.
Described are implementations of systems and methods for an improved machine learning-based system that incorporates pre-operative and intraoperative measurements captured during surgery, as well as additional patient-specific data, to provide an individualized, highly accurate post-operative manifest refraction prediction. According to some embodiments, a determination engine generates a predictive feature set of one or more predictors associated with diagnostic measurements of one or more eyes and performs a recursive selection operation using one or more combinations within the predictive feature set and one or more models to produce a most predictive subset, the most predictive subset having a highest prediction accuracy among other predictive subsets for post-operative manifest refraction. The determination engine generates a determination model by refining and retraining the one or more models of the recursive selection operation utilizing the most predictive subset.
A61B 3/107 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining the shape or measuring the curvature of the cornea
A61B 3/00 - Apparatus for testing the eyesInstruments for examining the eyes
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A method for providing automatic placement of a lens in a cartridge is provided. The method includes seizing, by a nozzle head of a lifting tool, the lens from a pick position of a platform based on an air flow through the nozzle head and depositing, by the lifting tool, the lens at a delivery point in the cartridge by changing the air flow through the nozzle head. The method includes determining, by a processor coupled to the lifting tool, a location of a haptic of the lens with respect to a feature of the cartridge. The method includes adjusting, by the lifting tool, the haptic from the location to a target orientation on the cartridge when the location of the haptic is determined to be misaligned with the feature. The method can be implemented as an apparatus, a system, and/or a computer program product.
Disclosed herein is a one-piece intraocular lens holder that may contain an interocular lens. The one-piece holder comprises a first portion, a second portion, and at least one integral hinge that connects the first portion to the second portion, wherein one portion comprises an integral annular support that accommodates an intraocular lens and the other portion comprises an integral adaptive feature that exerts a force on the intraocular lens when the intraocular lens is positioned on the integral annular support and the two portions are in a closed position.
A pneumatic cross-connect proportional valve provides the capability to calibrate pressure and vacuum sensors in a surgical cassette associated with a surgical console. Calibration of non-invasive pressure and vacuum sensors in a cassette by utilizing a proportional cross-connect to pressurize the lines with set pressure or vacuum the lines with set vacuum and measure the response of respective sensors in the cassette. The use of proportional pressure may be used along with other clearing methods to clear material clogging the aspiration channel pathways and tubing of the surgical system. Utilize the cross-connect functionality to more rapidly pressurize the aspiration line upon detection or prediction of a post occlusion surge, thereby reducing the pressure difference between the surgical field, the eye chamber, and aspiration line which may prevent, for example, a surge of fluid out of the anterior chamber of the eye.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
Sterile packaging for an intraocular lens (IOL) delivery system includes a sealed container with an IOL delivery system contained therein, with a cap sealing the container. One or more tamper-evident solutions are provided on the packaging to ensure an indication of non-sterility. This configuration solves certain issues with prior packaging, such as clumsy transfers and bulky packaging which creates storage issues and mitigates sterility barrier risk associated with pouch or blister packaging or other non-rigid package types.
Sterile packaging (20) for an intraocular lens (IOL) delivery system (22) includes a sealed container (32) with an IOL delivery system contained therein, with a cap (36) sealing the container. One or more tamper-evident solutions are provided on the packaging to ensure an indication of non-sterility. This configuration solves certain issues with prior packaging, such as clumsy transfers and bulky packaging which creates storage issues and mitigates sterility barrier risk associated with pouch or blister packaging or other non-rigid package types.
The present aspect of the disclosure uses software to monitor the fluid amount used and available to a surgical system and may inform a user when the available fluid approaches a depletion threshold so a user may take appropriate steps to minimize impact to the surgical operation.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
The present aspect of the disclosure uses software to monitor the fluid amount used and available to a surgical system and may inform a user when the available fluid approaches a depletion threshold so a user may take appropriate steps to minimize impact to the surgical operation.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
Irrigation sleeves which maximize irrigation outflow and have a reduced potential for snagging on incisions are disclosed. More particularly, disclosed irrigation sleeves comprise webbed irrigation ports, crossed irrigation ports, axially elongated irrigation ports, and/or centering dimples. The disclosed irrigation sleeves may further provide optimal irrigation outflow for maintaining chamber stability of the eye.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
Irrigation sleeves which maximize irrigation outflow and have a reduced potential for snagging on incisions are disclosed. More particularly, disclosed irrigation sleeves comprise webbed irrigation ports, crossed irrigation ports, axially elongated irrigation ports, and/or centering dimples. The disclosed irrigation sleeves may further provide optimal irrigation outflow for maintaining chamber stability of the eye.
A phacoemulsification system having an imaging device configured to capture images of an eye and a phacoemulsification probe, a display, and a processor configured to receive an eye scan result providing a two-dimensional array of cataract thicknesses of the eye, find cutlines through which to cut the cataract into sections responsively to the two-dimensional array of cataract thicknesses, and render the images of the eye and the phacoemulsification probe with representations of the found cutlines through which to cut the cataract into sections to the display.
Methods and systems provide provides a vacuum surge protection system or an Anti-Vacuum Surge (AVS) module and a console-side connector that form an energy (power) and/or data transfer system, which passes the energy and/or data using a magnetic field, via non-contact magnetic induction, between the console-side connector and the AVS module. The AVS module typically powers a medical tool, such as a phacoemulsification handpiece, for ophthalmic procedures, such as cataract removal.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A phacoemulsification system having an imaging device configured to capture images of an eye and a phacoemulsification probe, a display, and a processor configured to receive an eye scan result providing a two-dimensional array of cataract thicknesses of the eye, find cutlines through which to cut the cataract into sections responsively to the two-dimensional array of cataract thicknesses, and render the images of the eye and the phacoemulsification probe with representations of the found cutlines through which to cut the cataract into sections to the display.
Methods and systems provide provides a vacuum surge protection system or an Anti-Vacuum Surge (AVS) module and a console-side connector that form an energy (power) and/or data transfer system, which passes the energy and/or data using a magnetic field, via non-contact magnetic induction, between the console-side connector and the AVS module. The AVS module typically powers a medical tool, such as a phacoemulsification handpiece, for ophthalmic procedures, such as cataract removal.
Methods and apparatuses provide a phacoemulsification probe, wherein the probe has a piezoelectric actuator coupled with a needle configured to be inserted into an eye of a patient; and a processor configured to sequentially drive the actuator electrically in a range of frequencies, to measure a respective electrical power input to the actuator at each of the frequencies in the range, to identify a frequency in the range of frequencies wherein a metric of the electrical power input is a maximum, and to estimate from the identified frequency a mechanical resonant frequency of the actuator, and to drive the actuator electrically at the mechanical resonant frequency.
A system and method for operating a medical probe, the method including driving a tip of the medical probe to cause rotation of the tip (i) in a clockwise trajectory in a plane perpendicular to a longitudinal axis during first time intervals, and (ii) in a counterclockwise trajectory in the plane during second time intervals that are interleaved with the first time intervals.
A system includes a jig and a processor. The jig includes a pressure wave damping element under test, and a sensor that is coupled with an aspiration line of a phacoemulsification system distally to the pressure wave damping element, the sensor configured to measure a pressure wave traveling distally in the aspiration line. The processor is coupled with the jig, the processor configured to analyze and display readings of the sensor, so as to allow a user to assess pressure wave damping performance of the pressure wave damping element.
Inventory management cabinets, systems, and related methods are described herein. An example inventory management cabinet includes a housing defining a storage area, the storage area being configured to receive a product, and a plurality of slots arranged within the housing, each of the slots being configured to receive a respective unit of the product. The cabinet also includes at least one imaging device configured to capture information about the product. The cabinet further includes a controller operably coupled to the at least imaging device, where the controller includes a processor and a memory having computer-executable instructions stored thereon. The controller is configured to detect activity within the storage area of the housing, and control the at least one imaging device to initiate capture one or more images of the product in response to detecting activity within the storage area of the housing.
A system includes a jig and a processor. The jig includes a pressure wave damping element under test, and a sensor that is coupled with an aspiration line of a phacoemulsification system distally to the pressure wave damping element, the sensor configured to measure a pressure wave traveling distally in the aspiration line. The processor is coupled with the jig, the processor configured to analyze and display readings of the sensor, so as to allow a user to assess pressure wave damping performance of the pressure wave damping element.
Inventory management cabinets, systems, and related methods are described herein. An example inventory management cabinet includes a housing defining a storage area, the storage area being configured to receive a product, and a plurality of slots arranged within the housing, each of the slots being configured to receive a respective unit of the product. The cabinet also includes at least one imaging device configured to capture information about the product. The cabinet further includes a controller operably coupled to the at least imaging device, where the controller includes a processor and a memory having computer-executable instructions stored thereon. The controller is configured to detect activity within the storage area of the housing, and control the at least one imaging device to initiate capture one or more images of the product in response to detecting activity within the storage area of the housing.
G16H 40/20 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
A47F 3/02 - Showcases or show cabinets with dispensing arrangements
A47F 7/02 - Show stands, hangers, or shelves, adapted for particular articles or materials for jewellery, dentures, watches, eye-glasses, lenses, or the like
Methods and apparatuses provide a phacoemulsification probe, wherein the probe has a piezoelectric actuator coupled with a needle configured to be inserted into an eye of a patient; and a processor configured to sequentially drive the actuator electrically in a range of frequencies, to measure a respective electrical power input to the actuator at each of the frequencies in the range, to identify a frequency in the range of frequencies wherein a metric of the electrical power input is a maximum, and to estimate from the identified frequency a mechanical resonant frequency of the actuator, and to drive the actuator electrically at the mechanical resonant frequency.
A system and method for operating a medical probe, the method including driving a tip of the medical probe to cause rotation of the tip (i) in a clockwise trajectory in a plane perpendicular to a longitudinal axis during first time intervals, and (ii) in a counterclockwise trajectory in the plane during second time intervals that are interleaved with the first time intervals.
