Abstract

Various methods for making an implant for interfacing with a bone structure are described. The implant includes a web structure having a space truss. The implant may be made according to a three-dimensional model of the implant. The implant may be made by applying multiple layers of a biocompatible material to a support (e.g., a support structure) in a layer-by-layer process. The web structure may have a plurality of struts joined at nodes where the web structure is configured to interface with human bone tissue.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor
• A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
• A61B 17/68 - Internal fixation devices
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/32 - Joints for the hip
• A61F 2/36 - Femoral heads
• A61F 2/38 - Joints for elbows or knees
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/46 - Special tools for implanting artificial joints
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants may be coated with or include fibers or particles to enhance bone growth around and through the implant.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor
• A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
• A61B 17/68 - Internal fixation devices
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/32 - Joints for the hip
• A61F 2/36 - Femoral heads
• A61F 2/38 - Joints for elbows or knees
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/46 - Special tools for implanting artificial joints
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss may have a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. At least some struts may form an irregular pattern in the web structure. The space truss may include two or more planar truss units having a plurality of struts joined at nodes.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor
• A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
• A61B 17/68 - Internal fixation devices
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/32 - Joints for the hip
• A61F 2/36 - Femoral heads
• A61F 2/38 - Joints for elbows or knees
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/46 - Special tools for implanting artificial joints
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

IPC Classes  ?

• A61B 17/17 - Guides for drills
• A61B 17/84 - Fasteners therefor
• A61F 2/30 - Joints
• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/46 - Special tools for implanting artificial joints

Abstract

Various examples of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, a securing device is coupled to an implant. The securing device may be used to secure the implant to human tissue (e.g., bone tissue) after the implant is positioned on the tissue. The securing device may include anchor devices that move through the body of the implant and penetrate the human tissue. With the anchor devices moved through the implant, first ends of the anchor devices may engage with the human tissue while second ends of the anchor devices engage the implant body, thereby securing the implant to the human tissue.

IPC Classes  ?

• A61B 17/064 - Surgical staples
• A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials

Abstract

Various examples of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, a securing device is coupled to an implant. The securing device may be used to secure the implant to human tissue (e.g., bone tissue) after the implant is positioned on the tissue. The securing device may include anchor devices that move through the body of the implant and penetrate the human tissue. With the anchor devices moved through the implant, first ends of the anchor devices may engage with the human tissue while second ends of the anchor devices engage the implant body, thereby securing the implant to the human tissue.

IPC Classes  ?

• A61B 17/17 - Guides for drills
• A61B 17/84 - Fasteners therefor
• A61F 2/30 - Joints
• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/46 - Special tools for implanting artificial joints

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an intermedullary implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

IPC Classes  ?

• A61F 2/28 - Bones
• A61F 2/30 - Joints

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are coated with, or have struts formed from, a piezoelectric material to enhance bone growth around and through the implant.

IPC Classes  ?

• A61F 2/28 - Bones
• A61F 2/30 - Joints

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are disclosed. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants include one or more flexible struts that impart flexibility to the implant.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/28 - Bones

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor
• A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
• A61B 17/68 - Internal fixation devices
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/32 - Joints for the hip
• A61F 2/36 - Femoral heads
• A61F 2/38 - Joints for elbows or knees
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/46 - Special tools for implanting artificial joints
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants may include biodegradable polymer particles contained within biocompatible fibers. The biodegradable polymer particles may include bone growth promoting agents that are released as the particles degrade over time.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/30 - Joints

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants may be coated with or include fibers or particles to enhance bone growth around and through the implant.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor
• A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
• A61B 17/68 - Internal fixation devices
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/32 - Joints for the hip
• A61F 2/38 - Joints for elbows or knees
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/46 - Special tools for implanting artificial joints
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61F 2/36 - Femoral heads
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

A sacroiliac joint implant is formed from a web structure having a space truss with two or more planar truss units having a plurality of struts joined at nodes. The web structure is configured for fusion of a sacroiliac joint.

IPC Classes  ?

• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/32 - Joints for the hip
• A61F 2/38 - Joints for elbows or knees
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/46 - Special tools for implanting artificial joints

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are coated with, or have struts formed from, a piezoelectric material to enhance bone growth around and through the implant.

IPC Classes  ?

• A61F 2/28 - Bones
• A61F 2/30 - Joints

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an intermedullary implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

IPC Classes  ?

• A61F 2/28 - Bones
• A61F 2/30 - Joints

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/38 - Joints for elbows or knees
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/32 - Joints for the hip
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor
• A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
• A61B 17/68 - Internal fixation devices
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61F 2/36 - Femoral heads

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

IPC Classes  ?

• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/32 - Joints for the hip
• A61F 2/38 - Joints for elbows or knees
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

IPC Classes  ?

• A61F 2/28 - Bones
• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/32 - Joints for the hip
• A61F 2/38 - Joints for elbows or knees
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/30 - Joints

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/30 - Joints

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

IPC Classes  ?

• A61F 2/28 - Bones
• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/32 - Joints for the hip
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/30 - Joints
• A61F 2/38 - Joints for elbows or knees

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/28 - Bones
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/32 - Joints for the hip
• A61F 2/38 - Joints for elbows or knees
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61F 2/30 - Joints

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/38 - Joints for elbows or knees
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/32 - Joints for the hip
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor
• A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
• A61B 17/68 - Internal fixation devices
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61F 2/36 - Femoral heads

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/38 - Joints for elbows or knees
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/32 - Joints for the hip
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61F 2/36 - Femoral heads

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/38 - Joints for elbows or knees
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/32 - Joints for the hip
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61F 2/36 - Femoral heads

Abstract

A hand and/or wrist implant, including a web structure having a space truss with two or more planar truss units having a plurality of struts joined at nodes. The web structure is configured for the repair of traumatic bone fractures.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/30 - Joints
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/28 - Bones

Abstract

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/30 - Joints
• A61F 2/28 - Bones

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61F 2/28 - Bones
• A61F 2/30 - Joints
• A61F 2/38 - Joints for elbows or knees
• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/32 - Joints for the hip
• A61F 2/40 - Joints for shoulders
• A61F 2/42 - Joints for wrists or anklesJoints for hands, e.g. fingersJoints for feet, e.g. toes
• A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
• A61F 2/36 - Femoral heads

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.

IPC Classes  ?

• A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs