SE466732B - Ledprotes, innefattande en ledkropp mellan ett par tappar foer infaestning i ben - Google Patents
Ledprotes, innefattande en ledkropp mellan ett par tappar foer infaestning i benInfo
- Publication number
- SE466732B SE466732B SE8704211A SE8704211A SE466732B SE 466732 B SE466732 B SE 466732B SE 8704211 A SE8704211 A SE 8704211A SE 8704211 A SE8704211 A SE 8704211A SE 466732 B SE466732 B SE 466732B
- Authority
- SE
- Sweden
- Prior art keywords
- pins
- joint prosthesis
- joint
- screws
- prosthesis according
- Prior art date
Links
- 208000034953 Twin anemia-polycythemia sequence Diseases 0.000 title 1
- 238000009434 installation Methods 0.000 title 1
- 239000013536 elastomeric material Substances 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 239000000560 biocompatible material Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 210000001145 finger joint Anatomy 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- IIDJRNMFWXDHID-UHFFFAOYSA-N Risedronic acid Chemical compound OP(=O)(O)C(P(O)(O)=O)(O)CC1=CC=CN=C1 IIDJRNMFWXDHID-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000002310 elbow joint Anatomy 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000000552 rheumatic effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- 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
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30069—Properties of materials and coating materials elastomeric
-
- 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
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30131—Rounded shapes, e.g. with rounded corners horseshoe- or crescent- or C-shaped or U-shaped
-
- 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
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30143—Convex polygonal shapes hexagonal
-
- 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
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30159—Concave polygonal shapes
- A61F2002/30177—W-shaped, M-shaped or sigma shaped
-
- 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
- A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
-
- 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
- A61F2002/30362—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 with possibility of relative movement between the protrusion and the recess
- A61F2002/30364—Rotation about the common longitudinal axis
-
- 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
- A61F2002/30362—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 with possibility of relative movement between the protrusion and the recess
- A61F2002/30364—Rotation about the common longitudinal axis
- A61F2002/30367—Rotation about the common longitudinal axis with additional means for preventing said rotation
-
- 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
- A61F2002/30563—Special structural features of bone or joint prostheses not otherwise provided for having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers
-
- 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
- A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
- A61F2002/30571—Leaf springs
-
- 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
- A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
- A61F2002/30738—Sleeves
-
- 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
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
-
- 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
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
-
- 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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
- A61F2002/4243—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for interphalangeal joints, i.e. IP 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
- 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
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0056—W-shaped, e.g. M-shaped, sigma-shaped
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Description
466 732 _ z
10
15
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struktivt enkel, hållbar och lättrörlig, att det inte
uppstår något slitage, att det erhålles en säker, var-
aktig och skonsam förankring i benen och att ledprote-
sen är lätt utbytbar.
Ledprotesen enligt uppfinningen har i angivet
syfte erhållit de kännetecken som framgår av patent-
kravet l.
För närmare förklaring av uppfinningen, varvid
även ytterligare därigenom uppnådda fördelar kommer
att anges, hänvisas till bifogade ritningar, på vilka
FIG l är en sidovy, delvis i vertikalsektion, av
en fingerledsprotes enligt uppfinningen,
FIG 2 är en planvy, delvis i horisontalsektion av
fingerledsprotesen i FIG l,
FIG 3 är en sektionsvy, som visar fingerleden in-
opererad mellan två ben,
FIG 4 är en ändvy av infästningsplattan på tappen
i ett utförande och
FIG 5 är en motsvarande vy av ett annat utföran-
de, samt
FIG 6 visar ett modifierat utförande av ledkrop-
pen av elastomert material på samma sätt som FIG
l.
Med hänvisning till FIG l - 5 innefattar den där
visade fingerledsprotesen en ledkropp l0 av en elasto-
mer, som kan“ítgöras
Denna ledkropp är förbunden med ett par tappar ll av
ett biokompatibelt material, företrädesvis titan, som
är infästa i ledkroppen genom att denna är formsprutad
omkring ändflänsar l2 på tapparna, så att dessa änd-
flänsar är fullständigt inbäddade i elastomermateria-
let. För att en tillförlitlig infästning av tapparna
skall erhållas, är flänsarna utförda antingen med
slitsar l3 enligt FIG 3 eller med hål l4 enligt FIG 4,
så att elastomermaterialet vid formsprutningen kan
10
15
20
25
30
35
Q 466 752
tränga genom dessa,öppningar. Ledkroppen bi1dar ett
par p1attformiga rektangu1ära ansvä11ningar 15 omkring
f1änsarna och bi1dar me11an dessa ett re1ativt tunt
1iv 16 med svag väïvning.
Vardera tappen 11 är inskjuten i en rörformig
skruv 17, som 1ika1edes ska11 bestå av ett biokompati-
be1t materia1 och 1ämp1igen är av samma beskaffenhet
som tapparna, dvs den bör bestå av titan. Skruven har
en ändf1äns 18 och skruvas in i kana1en i det ben,
vari den ska11 förankras, såsom framgår av FIG 3,
ti11s f1änsen an1igger mot benet. Skruven växer fast i
benet, vi1ket medför att benet inte bryts ner på grund
av ojämn be1astning och att protesen kan utsättas för
större be1astningar under 1ängre tid, så att även yng-
re patienter med aktivt 1iv kan få en protes, som
fungerar avsevärt bättre under 1ång tid än proteser av
känt utförande. Borrningen i skruven är ti11räck1igt
1ång för att tappen inte ska11 bottna i densamma, då
den är he1t inskjuten i borrningen. Monteringen av
1edprotesen under1ättas av att tapparna 11 kan skjutas
in i skruvarna 17,_sedan dessa har infästs i benen.
Efter monteringen hå11es tapparna intryckta i skruvar-
na av den me11an dem anordnade e1astiska 1edkroppen
10. Eventue11t kan tapparna 1åsas i skruvarna efter
monteringen. Eftersom det under användningen av prote-
sen inte förekommer någon röre1se me11an tapparna och
skruvarna, b1ir s1itaget på protesen minima1t, varige-
nom 1ivs1ängden b1ir stor och risken för infektioner
och irritationer på grund av att partik1ar från prote-
sen kommer ut i kroppens vävnader, är praktiskt taget
he1t e1iminerad. En annan förde1 är att 1edkroppen med
ti11hörande tappar genom en enke1 operation 1ätt kan
bytas ut med skruvarna kvarsittande i benen, om 1ed-
protesen av någon an1edning inte sku11e fungera ti11-
fredsstä11ande. Tappen kan vara cy1indrisk, så att den
466 732 .4
10
15
20
25
30
35
är vridbar i skruvenïgvarigenom protesen blir lättare
att injustera, men vridbarheten medför också risk för
att protesen kan vrida sig ur sitt rätta läge under
användningen. Även om det vridbara utförandet blir
billigare än ett utförande, där medel är anordnade för
att förhindra vridning, kan det därför eventuellt vara
att föredraga att tappen är så styrd i borrningen, att
den inte kan vridas däri. Detta kan uppnås genom att
ett utsprång på tappen eller i borrningen förskjutbart
upptages i ett spår i borrningen resp tappen eller ge-
nom att tappen och borrningen har passande orund form.
Exempelvis kan tappen och borrningen ha sexkantig
tvärsektionsform, vilket medför den fördelen, att
skruven kan dragas åt vid inskruvningen medelst en i
dess borrning ingripande tappnyckel. I annat fall får
skruven utformas med skruvmejselskåra eller med sex-
kantig fläns, för att man skall kunna få grepp på den
vid inskruvningen.
Tack vare den elastiska ledkroppen l0 är ledpro-
tesen återfjädrande, vilket är viktigt vid behandling
av reumatiska patienter. Utan âterfjädringen tenderar
patientens fingrar att stelna i en böjd position.
Dessutom tar den elastiska ledkroppen upp stötar och
vibrationer, som.därigenom dämpas med ökning av håll-
fastheten hos protesen och dess infästningar som följd.
Ledkroppen l0 kan utformas även på det sätt som
framgår av FIG 6, enligt vilken livet är tunnare och
valvet på undersidan av livet är högre. En sådan led
tjänar bättre än leden i det först beskrivna utföran-
det till att ersätta den del av benet i den naturliga
fingerleden, som bildar knogen, men kan å andra sidan
medföra den olägenheten, att vävnad växer in i det hö-
ga valvet på undersidan och därvid kan hämma ledbarhe-
ten genom att vävnaden klämmes in under ledkroppen
samtidigt som livet på sin översida kan bli utsatt för
10
15
20
25
30
35
§ 466 732
större dragpåkännlngar. Det är emellertid möjligt att
utforma livet på olika sätt för bästa möjliga anpass-
ning av fingerledsprotesen till förhållandena på det
ställe, där den skall inopereras.
Den beskrivna ledprotesen är billigare och enkla-
re att tillverka än sådana proteser som innefattar
element, vilka glider mot varandra, vilket innebär att
protesen kan komma till användning inom en större pa-
tientkategori än de dyrare lederna.
Uppfinningen har exemplifierats genom beskrivning
av en fingledsprotes, men det skall understrykas, att
uppfinningen kan tillämpas även på andra leder av
gångjärnstyp, såsom handleder, armbågsleder och fot-
leder.
Claims (8)
- l. Ledprotes, innefattande en ledkropp (10) mel- lan ett par tappar (ll) fdr infästning i de ben, mel- lan vilka ledprotesen skall vara anordnad, k ä n n e - t e c k n a d av kombinationen av ett som ledkropp (10) mellan tapparna (ll) anordnat liv (I6) av elasto- mert material, vari tapparna (ll) är infästa medelst i materialet inbäddade, mot tapparna tvärställda flänsar (12), och en för vardera tappen (ll) anordnad, i benet infästbar rörformig skruv; vari tappen är inskjuten, varvid tappar och skruvar bestär av ett biokompatibelt material.
- 2. Ledprotes enligt krav l, k ä n n e - t e c k n a d av att livet (16) är välvt.
- 3. Ledprotes enligt krav l eller 2, k ä n n e - t e c k n a d av att flànsarna (l2) är genombrutna.
- 4. Ledprotes enligt nägot av krav l - 3, k ä n - n e t e c k n a d av att ledkroppen (lO) är formspru- tad omkring flänsarna.
- 5. Ledprotes enligt något av krav 1 - 4, k ä n n e t e c k n a d_~ay_att tapparna (ll) är vrid- bart anordnade i skruvarna (17).
- 6. Ledprotes enligt nägot av krav l - 4, k ä n - n e t e c k n aed av att tapparna (ll) är ovridbart styrda i skruvarna (17).
- 7. Ledprotes enligt krav 6, k ä n n e t e c k - n a d av att tapparna (ll) och dessa upptagande borr- ningar i skruvarna (17) har orund tvärsektionsform.
- 8. Ledprotes enligt nägot av krav l - 7, k ä n - n e t e c k n a d av att tappar (ll) och skruvar (17) består av titan.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8704211A SE466732B (sv) | 1987-10-29 | 1987-10-29 | Ledprotes, innefattande en ledkropp mellan ett par tappar foer infaestning i ben |
EP88909624A EP0391932B1 (en) | 1987-10-29 | 1988-10-28 | Joint prosthesis |
JP63508898A JP2746969B2 (ja) | 1987-10-29 | 1988-10-28 | 関節補綴 |
US07/473,992 US5011497A (en) | 1987-10-29 | 1988-10-28 | Joint prosthesis |
PCT/SE1988/000580 WO1989003663A1 (en) | 1987-10-29 | 1988-10-28 | Joint prosthesis |
DE8888909624T DE3874754T2 (de) | 1987-10-29 | 1988-10-28 | Gelenkprothese. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8704211A SE466732B (sv) | 1987-10-29 | 1987-10-29 | Ledprotes, innefattande en ledkropp mellan ett par tappar foer infaestning i ben |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8704211D0 SE8704211D0 (sv) | 1987-10-29 |
SE8704211L SE8704211L (sv) | 1989-04-30 |
SE466732B true SE466732B (sv) | 1992-03-30 |
Family
ID=20370047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8704211A SE466732B (sv) | 1987-10-29 | 1987-10-29 | Ledprotes, innefattande en ledkropp mellan ett par tappar foer infaestning i ben |
Country Status (6)
Country | Link |
---|---|
US (1) | US5011497A (sv) |
EP (1) | EP0391932B1 (sv) |
JP (1) | JP2746969B2 (sv) |
DE (1) | DE3874754T2 (sv) |
SE (1) | SE466732B (sv) |
WO (1) | WO1989003663A1 (sv) |
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WO2016099550A1 (en) | 2014-12-19 | 2016-06-23 | Wright Medical Technology, Inc. | Intramedullary anchor for interphalangeal arthrodesis |
US9757168B2 (en) | 2015-03-03 | 2017-09-12 | Howmedica Osteonics Corp. | Orthopedic implant and methods of implanting and removing same |
US10098749B2 (en) | 2015-07-31 | 2018-10-16 | Ryan A. Jefferis | Proximal interphalangeal joint prothesis |
WO2017037686A1 (en) * | 2015-09-03 | 2017-03-09 | Cmc Sert Ltd. | Prosthesis for replacing joint in a human hand or foot |
EP3195833B1 (en) | 2016-01-19 | 2022-01-12 | K2M, Inc. | Surgical instrument |
US10470807B2 (en) | 2016-06-03 | 2019-11-12 | Stryker European Holdings I, Llc | Intramedullary implant and method of use |
US11071630B2 (en) * | 2017-11-09 | 2021-07-27 | DePuy Synthes Products, Inc. | Orthopaedic prosthesis for an interphalangeal joint and associated method |
TR201800343A2 (tr) * | 2018-01-10 | 2018-03-21 | Tobb Ekonomi Ve Teknoloji Ueniversitesi | Bi̇r akromi̇yoklavi̇küler eklem i̇mplanti |
WO2019169319A1 (en) * | 2018-03-01 | 2019-09-06 | Paragon 28, Inc. | Implants and methods of use and assembly |
US11246712B2 (en) * | 2018-03-01 | 2022-02-15 | Paragon 28, Inc. | Implants, systems, and methods of use and assembly |
DE102019005770A1 (de) * | 2019-08-16 | 2021-02-18 | Alfons Erdmann | Operations- Kit zur Ergänzung eines Gelenkes |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3593342A (en) * | 1969-01-27 | 1971-07-20 | Cutter Lab | Prosthetic joint |
GB1306027A (sv) * | 1970-08-04 | 1973-02-07 | ||
US3886600A (en) * | 1971-07-15 | 1975-06-03 | Cutter Lab | Joint prosthesis |
US4158893A (en) * | 1976-10-12 | 1979-06-26 | Swanson Alfred B | Protective sleeve for implantable prosthesis and method of protecting the prosthesis |
US4204284A (en) * | 1977-11-16 | 1980-05-27 | Lord Corporation | Joint prosthesis with contoured pin |
US4229839A (en) * | 1977-11-16 | 1980-10-28 | Lord Corporation | Joint prosthesis |
DE2808740A1 (de) * | 1978-03-01 | 1979-09-06 | Omar Pacha Nabil Dr | Gelenkprothese |
US4229840A (en) * | 1978-08-01 | 1980-10-28 | Pfizer Inc. | Total trispherical wrist prosthesis |
FR2450600B1 (fr) * | 1979-03-05 | 1985-09-27 | Howmedica | Prothese d'articulation, notamment d'articulation metacarpo-phalangienne |
US4352212A (en) * | 1979-03-05 | 1982-10-05 | Howmedica, Inc. | Joint prosthesis |
FR2484826B1 (fr) * | 1980-06-19 | 1985-10-04 | Gauthier Georges | Perfectionnement aux protheses articulaires |
EP0278184A1 (fr) * | 1987-02-11 | 1988-08-17 | Thierry Hermann | Prothèse d'articulation, en particulier pour articulation de doigt |
JPH01136655A (ja) * | 1987-11-24 | 1989-05-29 | Asahi Optical Co Ltd | 人工椎間板 |
-
1987
- 1987-10-29 SE SE8704211A patent/SE466732B/sv not_active IP Right Cessation
-
1988
- 1988-10-28 JP JP63508898A patent/JP2746969B2/ja not_active Expired - Lifetime
- 1988-10-28 US US07/473,992 patent/US5011497A/en not_active Expired - Fee Related
- 1988-10-28 WO PCT/SE1988/000580 patent/WO1989003663A1/en active IP Right Grant
- 1988-10-28 DE DE8888909624T patent/DE3874754T2/de not_active Expired - Fee Related
- 1988-10-28 EP EP88909624A patent/EP0391932B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1989003663A1 (en) | 1989-05-05 |
DE3874754D1 (de) | 1992-10-22 |
SE8704211L (sv) | 1989-04-30 |
EP0391932B1 (en) | 1992-09-16 |
US5011497A (en) | 1991-04-30 |
JPH03501810A (ja) | 1991-04-25 |
JP2746969B2 (ja) | 1998-05-06 |
EP0391932A1 (en) | 1990-10-17 |
SE8704211D0 (sv) | 1987-10-29 |
DE3874754T2 (de) | 1993-03-04 |
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