CN115192271A - 双节段仿生颈椎间盘与椎体连接系统 - Google Patents

双节段仿生颈椎间盘与椎体连接系统 Download PDF

Info

Publication number
CN115192271A
CN115192271A CN202210815928.XA CN202210815928A CN115192271A CN 115192271 A CN115192271 A CN 115192271A CN 202210815928 A CN202210815928 A CN 202210815928A CN 115192271 A CN115192271 A CN 115192271A
Authority
CN
China
Prior art keywords
intervertebral disc
connecting block
vertebral body
artificial intervertebral
end plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210815928.XA
Other languages
English (en)
Inventor
郝定均
张海平
柳林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202210815928.XA priority Critical patent/CN115192271A/zh
Priority to GB2214300.2A priority patent/GB2612444B/en
Publication of CN115192271A publication Critical patent/CN115192271A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2/30749—Fixation appliances for connecting prostheses to the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
    • A61F2002/30011—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in porosity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30224—Three-dimensional shapes cylindrical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
    • A61F2002/30322—The prosthesis having different structural features at different locations within the same prosthesis differing in surface structures
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30481—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking clip
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/305—Snap connection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30649—Ball-and-socket joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30649—Ball-and-socket joints
    • A61F2002/30665—Dual arrangement of two adjacent ball-and-socket joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2002/30754—Implants for interposition between two natural articular surfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A61F2002/30787—Plurality of holes inclined obliquely with respect to each other
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30841—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/3092—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having an open-celled or open-pored structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/3093—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for promoting ingrowth of bone tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
    • A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2002/448—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants
    • A61F2002/4485—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants comprising three or more adjacent spinal implants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2002/449—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple spinal implants located in different intervertebral spaces or in different vertebrae
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body
    • A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Neurology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Prostheses (AREA)

Abstract

本发明公开一种双节段仿生颈椎间盘与椎体连接系统，包括依次连接的上终板、人工椎间盘和下终板；所述上终板具有与上椎体匹配的第一曲面结构，所述下终板具有与下椎体匹配的第二曲面结构，第一曲面结构和第二曲面结构均为多孔层；所述上终板与人工椎间盘通过第一活动仿生部连接；所述人工椎间盘和下终板通过第二活动仿生部连接；所述人工椎间盘为杯型结构，人工椎间盘上设置有用于和两侧椎体固定的螺栓，且杯型结构两侧为孔隙结构，前后侧为抛光面。该系统能够减少双节段的融合，保留颈椎的运动功能，有效治疗颈椎疾病。

Description

双节段仿生颈椎间盘与椎体连接系统
技术领域
本发明涉及骨科手术技术领域，具体涉及一种双节段仿生颈椎间盘与椎体连接系统。
背景技术
近年来，科技与经济的飞速发展，多数老年人及青年手机处于不离手的状态，甚至中小学生学习变为线上进行，长期应用电脑及手机，加速颈椎退行性疾病的发展，颈椎手术的数量有所增加，颈前路椎体次全切除植骨融合术(anterior cervical corpectomy andfusion,ACCF)是以往临床中治疗颈椎疾病及改善临床症状的主要治疗方式，融合过去多年一直视为“金标准”，随着随访时间的延长ASD的发生逐渐凸显，需要再次手术治疗，使得颈椎可运动得节段越来越少，颈部的僵硬即将伴随患者的终身，严重影响患者的余生的生活质量，如何减少双节段的融合，保留颈椎的运动功能，对颈椎疾病的治疗有深远的影响和意义。
之前的学者也初步进行尝试，中国专利CN201110179966.2公开了一种可调式人工颈椎及椎间连接复合体，包括椎体部件以及分别通过球关节结构连接于椎体部件上下端的两个终板部件；所述椎体部件由上椎体部件和下椎体部件组成，所述上椎体部件和下椎体部件轴向通过螺纹连接；在所述上椎体部件和下椎体部件的侧周壁上径向对应设有若干螺孔，在上椎体部件和下椎体部件的螺孔间还设有一个长度固定螺钉；所述两个终板部件上分别设有终板部件固定螺钉。该连接复合体同时具备人工椎体的支撑功能和人工椎间盘的活动性能、长度可调节，能够实现颈椎前路手术后的即刻稳定，能起到支撑作用，也可以实现颈椎前路术后即刻运动功能重建，使其活动性能与正常颈椎高度仿生。该设计的不足在于对次全切除后重建椎体的稳定性恢复较差，单纯依靠上下两枚螺钉固定容易导致手术的失败，其次螺钉的植入后会影响前屈的运动功能，该复合体置入时易于下沉。
发明内容
为了解决现有技术存在的问题，本发明提供了一种双节段仿生颈椎间盘与椎体连接系统，该系统能够减少双节段的融合，保留颈椎的运动功能，有效治疗颈椎疾病。
为了实现上述目的，本发明提供了如下的技术方案：
一种双节段仿生颈椎间盘与椎体连接系统，包括依次连接的上终板、人工椎间盘和下终板；
所述上终板具有与上椎体匹配的第一曲面结构，所述下终板具有与下椎体匹配的第二曲面结构，第一曲面结构和第二曲面结构均为多孔层；
所述上终板与人工椎间盘通过第一活动仿生部连接；所述人工椎间盘和下终板通过第二活动仿生部连接；
所述人工椎间盘为杯型结构，人工椎间盘上设置有用于和两侧椎体固定的螺栓，且杯型结构两侧为孔隙结构，前后侧为抛光面。
作为本发明的进一步改进，所述第一活动仿生部包括上垫片和上连接块；
所述上垫片上具有第一半球，所述上终板下表面具有第一凹槽，第一半球与第一凹槽接触形成球窝结构；
所述上垫片和上连接块固定，所述上连接块与人工椎间盘上端固定连接。
作为本发明的进一步改进，所述上垫片包括上垫片本体，所述第一半球靠近上垫片本体前侧设置；上垫片本体两侧设置有用于与上连接块连接的卡槽；所述上连接块包括上连接块本体，上连接块本体上表面设置有用于和上垫片本体连接的卡块，上连接块本体下表面设置有与人工椎间盘上端连接的倒T型块。
作为本发明的进一步改进，所述人工椎间盘上端设置有第一安装槽和第二安装槽；
所述人工椎间盘前侧设置有多个螺栓孔，螺栓孔从前侧向两侧贯穿，且相邻两个螺栓孔贯穿方向不同。
作为本发明的进一步改进，所述人工椎间盘还包括防退出螺母，所述防退出螺母设置在螺栓孔外侧用于对所述螺栓限位。
作为本发明的进一步改进，所述第一安装槽和第二安装槽均设置有防退出卡扣；所述防退出卡扣包括防退出卡扣本体，防退出卡扣本体一侧设置有凸块，另一侧设置有挡条。
作为本发明的进一步改进，所述第二活动仿生部包括下垫片和下连接块；
所述下垫片下具有第二半球，所述下连接块下表面具有第二凹槽，第二半球与第二凹槽接触形成球窝结构；
所述下连接块与人工椎间盘下端固定连接，所述下垫片和下终板固定。
作为本发明的进一步改进，所述下垫片包括下垫片本体，所述第二半球靠近下垫片本体前侧设置；下垫片本体两侧设置有用于与下连接块连接的卡槽；
所述下连接块包括下连接块本体，下连接块本体下表面设置有凹槽，下连接块本体上表面设置有与人工椎间盘下端连接的T型块。
作为本发明的进一步改进，所述人工椎间盘上下两端面积大于中部横截面面积，孔隙结构为曲面，且两侧外缘形成双曲线形状。
作为本发明的进一步改进，所述第一曲面结构和第二曲面结构上还均设置有倒齿，倒齿向前侧倾斜；
所述螺栓包括螺帽和螺杆，螺杆靠近螺帽一端为等螺距的柱状杆，螺杆远离螺帽一端为变螺距的尖状杆，尖状杆上的螺距向尖端逐渐增大。
与现有技术相比，本发明具有以下有益效果：
本发明上下终板利用假体的倒齿结构可提供即刻稳定性，长久的稳定性依靠假体表面打印的孔隙结构与椎体骨性终板相融合，人工椎体部件其上方设计为杯状结构，减少椎体下沉及移位，侧方设计为打印的孔隙结构，有利于后期骨小梁的长入，达到永久性稳定及椎体的重建。进行侧方螺钉将人工椎体稳定在中央，减少人工椎体的向后移位挤压脊髓。将本发明实施例给出的人工间盘与人工椎体相组合，从而完全取代传统的ACCF变为ACCNF，既可以彻底减压解除脊髓的压迫，又仿生性的恢复了双节段的运动功能，对防止颈椎邻近节段上下退变有不可替代的作用，该装置有很好的应用前景。该系统能够减少双节段的融合，保留颈椎的运动功能，有效治疗颈椎疾病。
附图说明
在此描述的附图仅用于解释目的，而不意图以任何方式来限制本发明公开的范围。另外，图中的各部件的形状和比例尺寸等仅为示意性的，用于帮助对本发明的理解，并不是具体限定本发明各部件的形状和比例尺寸。在附图中：
图1为一种双节段仿生颈椎间盘与椎体连接系统立体图；
图2为一种双节段仿生颈椎间盘与椎体连接系统主视图；
图3为一种双节段仿生颈椎间盘与椎体连接系统测试图；
图4为本发明可选实施例的上终板示意图；
图5为本发明可选实施例的上垫片示意图；
图6为本发明可选实施例的上连接块示意图；
图7为本发明可选实施例的人工椎间盘示意图；
图8为本发明可选实施例的螺栓示意图；
图9为本发明可选实施例的防退出螺母示意图；
图10为本发明可选实施例的防退出卡扣示意图；
图11为本发明可选实施例的下连接块示意图；
图12为本发明可选实施例的下终板示意图；
图13为本发明可选实施例的下终板主视图；
图14为本发明双节段仿生颈椎间盘与椎体连接系统使用状态示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明中的技术方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
需要说明的是，当元件被称为“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施例。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1至图13所示，本发明提供了一种双节段仿生颈椎间盘与椎体连接系统，包括依次连接的上终板11、人工椎间盘12和下终板14；
所述上终板11具有与上椎体匹配的第一曲面结构141，所述下终板14具有与下椎体匹配的第二曲面结构144，第一曲面结构141和第二曲面结构144均为多孔层；
所述上终板11与人工椎间盘12通过第一活动仿生部连接；所述人工椎间盘12和下终板14通过第二活动仿生部连接；
所述人工椎间盘12为杯型结构，人工椎间盘12上设置有用于和两侧椎体固定的螺栓13，且杯型结构两侧为孔隙结构123，前后侧为抛光面122。
本发明上下终板利用假体的倒齿结构可提供即刻稳定性，长久的稳定性依靠假体表面打印的孔隙结构与椎体骨性终板相融合，人工椎体部件其上方设计为杯状结构，减少椎体下沉及移位，侧方设计为打印的孔隙结构，有利于后期骨小梁的长入，达到永久性稳定及椎体的重建。再进行侧方螺钉将人工椎体稳定在中央，减少人工椎体的向后移位挤压脊髓。
其中，如图4、图12和图13所示，所述第一曲面结构141和第二曲面结构144上还均设置有倒齿，倒齿向前侧倾斜。
例如所述第一曲面结构141上设置有倒齿142，第二曲面结构144上设置有倒齿143。多孔层通过3D打印一体成型。第一曲面结构141和第二曲面结构144的结构与上下椎体匹配，以确保安装时相互配合紧密，实现人工假体有效的替代作用。多孔层还能够在后续人体内与骨骼形成相互融合，实现固结。
作为可选实施例，结合图5和图3所示，所述第一活动仿生部包括上垫片18和上连接块15；所述上垫片18上具有第一半球181，所述上终板11下表面具有第一凹槽，第一半球181与第一凹槽接触形成球窝结构；所述上垫片18和上连接块15固定，所述上连接块15与人工椎间盘12上端固定连接。球窝结构能够模拟人体关节结构，实现关节的摆动和转动。
具体的，如图5所示，上垫片18包括上垫片本体182，所述第一半球181靠近上垫片本体182前侧设置；上垫片本体182两侧设置有用于与上连接块15连接的卡槽，卡槽具体为矩形缺口。
如图6所示，所述上连接块15包括上连接块本体151，上连接块本体151上表面设置有用于和上垫片本体182连接的卡块152，上连接块本体151下表面设置有与人工椎间盘12上端连接的倒T型块153；卡块152为直角三角形，两个卡块152的直角边相对设置，用于卡住所述的矩形缺口实现卡接固定。
所述人工椎间盘12上端设置有倒T型块153配合的第一安装槽121。倒T型块153插入第一安装槽121即可实现快速安装。
如图7所示，所述人工椎间盘12前侧设置有多个螺栓孔，螺栓孔从前侧向两侧贯穿，且相邻两个螺栓孔贯穿方向不同。本实施例给出了四个螺栓孔，两个向左侧倾斜，两个向右侧倾斜。用于固定左侧和右侧的椎体。交错的设置确保固定更加稳定。
如图所示，所述人工椎间盘12上下两端面积大于中部横截面面积，孔隙结构123为曲面，且两侧外缘形成双曲线形状。在确保足够支撑力的情况下，人工椎间盘12两侧可以实现融合。
如图8所示，螺栓13包括螺帽131和螺杆132，螺杆132靠近螺帽131一端为等螺距的柱状杆，确保旋紧后防止松动，螺杆132远离螺帽131一端为变螺距的尖状杆，尖状杆上的螺距向尖端逐渐增大，可以便于手术中螺栓的快速旋入。螺帽131端部设置有内六方，用于和工具配合进行拧紧螺栓。
如图9所示，人工椎间盘12还包括防退出螺母20，所述防退出螺母20设置在螺栓孔外侧用于对所述螺栓13限位。防退出螺母20为圆柱体结构，外部为反丝螺纹，一端部设置有操作口，例如内六方结构。
如图10所示，为了防止上连接块15或下连接块17滑出，所述人工椎间盘12还包括限制上连接块15或下连接块17滑出的防退出卡扣21；防退出卡扣(21)安装在第一安装槽(121)或/和第二安装槽(124)端部两侧；所述防退出卡扣21包括防退出卡扣本体211，防退出卡扣本体211一侧设置有凸块212，另一侧设置有挡条213。凸块212安装在滑槽内，防退出卡扣本体211用于进行限位。
如图11和图3所示，所述第二活动仿生部包括下垫片和下连接块17；
所述下垫片下具有第二半球，所述下连接块17下表面具有第二凹槽，第二半球与第二凹槽接触形成球窝结构；具体结构与第一活动仿生部作用相同。
所述下连接块17与人工椎间盘12下端固定连接，所述下垫片和下终板14固定。
所述下垫片包括下垫片本体，所述第二半球靠近下垫片本体前侧设置；下垫片本体两侧设置有用于与下连接块连接的卡槽。本实施例未给出下垫片的结构示意图，结构请参照图5。
其中，如图11所示，所述下连接块17包括下连接块本体171，下连接块本体171下表面设置有凹槽，下连接块本体171上表面设置有与人工椎间盘12下端连接的T型块172；所述人工椎间盘12下端设置有倒型块173配合的第二安装槽124。
如图12所示，采用本发明给出的双节段仿生颈椎间盘与椎体连接系统的手术过程如下：
颈椎常规前入路，部分切除压迫及增生的椎体，并进行开槽，处理次全切除上下椎间隙的软骨终板，置入合适大小的人工假体部件，并用3.5mm或4.0mm螺钉经人工椎体的螺钉孔，固定到残存的次全切除两侧的椎体上，重建了次全切除椎体的完整性和稳定性。
然后测量上下椎间隙的高度和宽度及深度，选择合适大小的3D打印的人工椎间盘经卡槽与人工椎体相连接，上下终板利用假体的倒齿结构可提供即刻稳定性，长久的稳定性依靠假体表面打印的孔隙结构与椎体骨性终板相融合，人工椎体部件其上方设计为杯状结构，减少椎体下沉及移位，侧方设计为打印的孔隙结构，有利于后期骨小梁的长入，达到永久性稳定及椎体的重建。
最后通过卡槽部的锁片，向中央琐紧，预防下上终板假体部件滑移，人工椎体的螺钉孔尾端设计为反丝装置，琐紧螺母，防止螺钉退出，冲洗切口，放置引流管，仔细止血，逐层缝合，术毕。
综上所示，本发明的双节段仿生颈椎间盘与椎体连接系统，仿生性恢复了次全切除椎体的完整性及稳定性，将3D打印的椎体取代ACCF的钛网成分。3D打印的椎体利用上方的杯型设计，减少术后人工椎体的下沉，在杯型接触椎体的假体面进行表面处理，有利于骨长入，达到永久性稳定，进行侧方螺钉将人工椎体稳定在中央，减少人工椎体的向后移位挤压脊髓。
特别是，上下椎间隙植入3D打印的人工椎间盘，其与人工椎体通过卡槽相连接后，并设计前方的锁片装置将其锁紧，减少椎人工间盘后伸时向前滑移，卡槽后方设计阻挡结构，防止颈椎前屈时假体向后移位。
作为可选方案，将3D打印的椎体设计为前后抛光面，这样减少术后椎体后方的骨质增生形成骨赘再次压迫脊髓，前方减少增生形成异位骨化而导致椎间盘活动减少，甚至置换失败。椎体两侧方设计为3D打印的孔隙结构，有利于术后骨小梁长入达到骨融合，实现永久性稳定，真正成为仿生替代原来的椎体，上下人工椎间盘也同时最大程度保留骨性终板结构。
将本发明实施例给出的人工间盘与人工椎体相组合，从而完全取代传统的ACCF变为ACCNF，既可以彻底减压解除脊髓的压迫，又仿生性的恢复了双节段的运动功能，对防止颈椎邻近节段上下退变有不可替代的作用，该装置有很好的应用前景。
需要说明的是，在本发明的描述中，术语“第一”、“第二”等仅用于描述目的和区别类似的对象，两者之间并不存在先后顺序，也不能理解为指示或暗示相对重要性。此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
应该理解，以上描述是为了进行图示说明而不是为了进行限制。通过阅读上述描述，在所提供的示例之外的许多实施例和许多应用对本领域技术人员来说都将是显而易见的。因此，本教导的范围不应该参照上述描述来确定，而是应该参照前述权利要求以及这些权利要求所拥有的等价物的全部范围来确定。出于全面之目的，所有文章和参考包括专利申请和公告的公开都通过参考结合在本文中。在前述权利要求中省略这里公开的主题的任何方面并不是为了放弃该主体内容，也不应该认为申请人没有将该主题考虑为所公开的发明主题的一部分。

Claims (10)

1.一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，包括依次连接的上终板(11)、人工椎间盘(12)和下终板(14)；
所述上终板(11)具有与上椎体匹配的第一曲面结构(141)，所述下终板(14)具有与下椎体匹配的第二曲面结构(144)，第一曲面结构(141)和第二曲面结构(144)均为多孔层；
所述上终板(11)与人工椎间盘(12)通过第一活动仿生部连接；所述人工椎间盘(12)和下终板(14)通过第二活动仿生部连接；
所述人工椎间盘(12)为杯型结构，人工椎间盘(12)上设置有用于和两侧椎体固定的螺栓(13)，且杯型结构两侧为孔隙结构(123)，前后侧为抛光面(122)。
2.根据权利要求1所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，所述第一活动仿生部包括上垫片(18)和上连接块(15)；
所述上垫片(18)上具有第一半球(181)，所述上终板(11)下表面具有第一凹槽，第一半球(181)与第一凹槽接触形成球窝结构；
所述上垫片(18)和上连接块(15)固定，所述上连接块(15)与人工椎间盘(12)上端固定连接。
3.根据权利要求2所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，所述上垫片(18)包括上垫片本体(182)，所述第一半球(181)靠近上垫片本体(182)前侧设置；上垫片本体(182)两侧设置有用于与上连接块(15)连接的卡槽；所述上连接块(15)包括上连接块本体(151)，上连接块本体(151)上表面设置有用于和上垫片本体(182)连接的卡块(152)，上连接块本体(151)下表面设置有与人工椎间盘(12)上端连接的倒T型块(153)。
4.根据权利要求1所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，
所述人工椎间盘(12)上端设置有第一安装槽(121)和第二安装槽(124)；
所述人工椎间盘(12)前侧设置有多个螺栓孔，螺栓孔从前侧向两侧贯穿，且相邻两个螺栓孔贯穿方向不同。
5.根据权利要求4所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，所述人工椎间盘(12)还包括防退出螺母(20)，所述防退出螺母(20)设置在螺栓孔外侧用于对所述螺栓(13)限位。
6.根据权利要求4所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，所述第一安装槽(121)和第二安装槽(124)均设置有防退出卡扣(21)；所述防退出卡扣(21)包括防退出卡扣本体(211)，防退出卡扣本体(211)一侧设置有凸块(212)，另一侧设置有挡条(213)。
7.根据权利要求1所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，所述第二活动仿生部包括下垫片和下连接块(17)；
所述下垫片下具有第二半球，所述下连接块(17)下表面具有第二凹槽，第二半球与第二凹槽接触形成球窝结构；
所述下连接块(17)与人工椎间盘(12)下端固定连接，所述下垫片和下终板(14)固定。
8.根据权利要求1所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，所述下垫片包括下垫片本体，所述第二半球靠近下垫片本体前侧设置；下垫片本体两侧设置有用于与下连接块连接的卡槽；
所述下连接块(17)包括下连接块本体(171)，下连接块本体(171)下表面设置有凹槽，下连接块本体(171)上表面设置有与人工椎间盘(12)下端连接的T型块(172)。
9.根据权利要求1所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，所述人工椎间盘(12)上下两端面积大于中部横截面面积，孔隙结构(123)为曲面，且两侧外缘形成双曲线形状。
10.根据权利要求1所述的一种双节段仿生颈椎间盘与椎体连接系统，其特征在于，所述第一曲面结构(141)和第二曲面结构(144)上还均设置有倒齿，倒齿向前侧倾斜；
所述螺栓(13)包括螺帽(131)和螺杆(132)，螺杆(132)靠近螺帽(131)一端为等螺距的柱状杆，螺杆(132)远离螺帽(131)一端为变螺距的尖状杆，尖状杆上的螺距向尖端逐渐增大。
CN202210815928.XA 2022-07-12 2022-07-12 双节段仿生颈椎间盘与椎体连接系统 Pending CN115192271A (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202210815928.XA CN115192271A (zh) 2022-07-12 2022-07-12 双节段仿生颈椎间盘与椎体连接系统
GB2214300.2A GB2612444B (en) 2022-07-12 2022-09-29 Two-segment bionic cervical intervertebral disc system for connecting to a vertebral body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210815928.XA CN115192271A (zh) 2022-07-12 2022-07-12 双节段仿生颈椎间盘与椎体连接系统

Publications (1)

Publication Number Publication Date
CN115192271A true CN115192271A (zh) 2022-10-18

Family

ID=83580562

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210815928.XA Pending CN115192271A (zh) 2022-07-12 2022-07-12 双节段仿生颈椎间盘与椎体连接系统

Country Status (2)

Country Link
CN (1) CN115192271A (zh)
GB (1) GB2612444B (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107693172A (zh) * 2017-10-23 2018-02-16 中国人民解放军第四军医大学 一种3d打印个性化定制人工椎体及其制备方法
CN108095863A (zh) * 2018-01-20 2018-06-01 西安市红会医院 一种3d打印人工颈椎间盘假体
CN207520241U (zh) * 2017-04-19 2018-06-22 北京爱康宜诚医疗器材有限公司 椎间盘假体
US20200093613A1 (en) * 2018-09-24 2020-03-26 Simplify Medical Pty Ltd Robot assisted intervertebral disc prosthesis selection and implantation system
CN111035482A (zh) * 2019-12-24 2020-04-21 西安交通大学医学院第二附属医院 一种3d打印仿生防脱位可动型人工颈椎和椎间连接复合体
WO2021169746A1 (zh) * 2020-02-24 2021-09-02 汕头大学 一种3d打印的仿生人工颈椎间关节
CN114469458A (zh) * 2022-01-12 2022-05-13 汕头大学 一种3d打印仿生人工椎间关节假体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0425546D0 (en) * 2004-11-20 2004-12-22 Wang Dajue Spinal prostheses
CN105853031B (zh) * 2016-04-29 2017-10-03 西安交通大学第二附属医院 一种仿生防脱位人工腰椎及椎间盘连接复合体
CN105997309B (zh) * 2016-04-29 2018-05-04 西安交通大学第二附属医院 一种仿生防脱位山羊腰椎连接复合体
CN211300524U (zh) * 2019-12-24 2020-08-21 西安交通大学医学院第二附属医院 一种3d打印仿生防脱位可动型人工颈椎和椎间连接复合体

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207520241U (zh) * 2017-04-19 2018-06-22 北京爱康宜诚医疗器材有限公司 椎间盘假体
CN107693172A (zh) * 2017-10-23 2018-02-16 中国人民解放军第四军医大学 一种3d打印个性化定制人工椎体及其制备方法
CN108095863A (zh) * 2018-01-20 2018-06-01 西安市红会医院 一种3d打印人工颈椎间盘假体
US20200093613A1 (en) * 2018-09-24 2020-03-26 Simplify Medical Pty Ltd Robot assisted intervertebral disc prosthesis selection and implantation system
CN111035482A (zh) * 2019-12-24 2020-04-21 西安交通大学医学院第二附属医院 一种3d打印仿生防脱位可动型人工颈椎和椎间连接复合体
WO2021169746A1 (zh) * 2020-02-24 2021-09-02 汕头大学 一种3d打印的仿生人工颈椎间关节
CN114469458A (zh) * 2022-01-12 2022-05-13 汕头大学 一种3d打印仿生人工椎间关节假体

Also Published As

Publication number Publication date
GB2612444A (en) 2023-05-03
GB202214300D0 (en) 2022-11-16
GB2612444B (en) 2024-04-03

Similar Documents

Publication Publication Date Title
US9987141B2 (en) Intervertebral fusion implant
US10575960B2 (en) Intervertebral fusion implant
CN104023674B (zh) 可膨胀椎间植入物
US8545538B2 (en) Devices and methods for inter-vertebral orthopedic device placement
AU770261B2 (en) Artificial disc implant
US7588589B2 (en) Posterior spinal reconstruction system
US20180368983A1 (en) Prosthetic device
US20090171394A1 (en) Devices And Methods For The Treatment Of Facet Joint Disease
JP2004527287A5 (zh)
CN115192271A (zh) 双节段仿生颈椎间盘与椎体连接系统
Devkota et al. Posterior lumbar interbody fusion for the management of spondylolisthesis
CN112957161B (zh) 颈椎侧方植骨撑开翼状固定钛网
CN219323547U (zh) 一种olif入路腰椎一体化椎间融合系统
CN216021553U (zh) 一种胸腰椎前路锁定加压融合器
CN211433516U (zh) 一种新型圆棒状xlif椎间融合器
CN111329629B (zh) 一种运用于脊柱微创手术的膨胀式椎间融合器
CN107349035B (zh) 用于脊椎减压的原动力内植物
Pradhan et al. Complications of interbody fusion cages
CN117045400A (zh) 一种旋进式一体化可动人工颈椎
CN116831789A (zh) 后路植入连体式腰椎融合器
Tajima et al. Segmental square spinal instrumentation for posterior lumbar spinal fixation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination