DE19642719A1 - Insert piece for prosthesis - Google Patents

Insert piece for prosthesis

Info

Publication number
DE19642719A1
DE19642719A1 DE19642719A DE19642719A DE19642719A1 DE 19642719 A1 DE19642719 A1 DE 19642719A1 DE 19642719 A DE19642719 A DE 19642719A DE 19642719 A DE19642719 A DE 19642719A DE 19642719 A1 DE19642719 A1 DE 19642719A1
Authority
DE
Germany
Prior art keywords
sleeve
prosthesis
damping element
insert according
insert
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.)
Withdrawn
Application number
DE19642719A
Other languages
German (de)
Inventor
Robert Kostner
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.)
GOEMED ORTHOPAEDIE SERVICE GMB
Original Assignee
GOEMED ORTHOPAEDIE SERVICE GMB
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 GOEMED ORTHOPAEDIE SERVICE GMB filed Critical GOEMED ORTHOPAEDIE SERVICE GMB
Priority to DE19642719A priority Critical patent/DE19642719A1/en
Publication of DE19642719A1 publication Critical patent/DE19642719A1/en
Withdrawn legal-status Critical Current

Links

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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/68—Operating or control means
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/68—Operating or control means
    • A61F2/74—Operating or control means fluid, i.e. hydraulic or pneumatic
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/64—Knee 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/76—Means for assembling, fitting or testing prostheses, e.g. for measuring or balancing, e.g. alignment means
    • 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
    • A61F2002/30146—Convex polygonal shapes octagonal
    • 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
    • A61F2002/30235—Three-dimensional shapes cylindrical tubular, e.g. 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30273—Three-dimensional shapes pyramidal
    • 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
    • A61F2002/30329—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
    • A61F2002/3037—Translation along the common longitudinal axis, e.g. piston
    • 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
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5003—Prostheses not implantable in the body having damping means, e.g. 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5007—Prostheses not implantable in the body having elastic means different from springs, e.g. including an elastomeric insert
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5016—Prostheses not implantable in the body adjustable
    • A61F2002/503—Prostheses not implantable in the body adjustable for adjusting elasticity, flexibility, spring rate or mechanical tension
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5038—Hinged joint, e.g. with transverse axle restricting the movement
    • A61F2002/5041—Hinged joint, e.g. with transverse axle restricting the movement having bearing bushes between the rotating parts
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5072—Prostheses not implantable in the body having spring elements
    • A61F2002/5073—Helical springs, e.g. having at least one helical spring
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5081—Additional features
    • A61F2002/5083—Additional features modular
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5081—Additional features
    • A61F2002/5084—Additional features telescopic
    • 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
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2002/607—Lower legs
    • 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
    • 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
    • A61F2230/0017—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
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0069—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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0086—Pyramidal, tetrahedral, or wedge-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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00035—Other metals or alloys
    • A61F2310/00047—Aluminium or Al-based alloys

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

Abstract

The insert piece for a lower leg prosthesis has a two part section. The separate parts (2,10) of the section can move relative to each other in the lengthwise direction. A damping element (8') is provided, between the two parts, that may be as an elastomeric block. The first part (10) may be formed as a sleeve and the second part (2) is a prosthesis sleeve into which the first sleeve projects. A prosthetic foot can be attached to the end of the first sleeve and a knee joint, or prosthesis connection, may be attached to the end of the prosthesis sleeve.

Description

Die Erfindung geht aus von einem Einsatzstück für Prothesen, insbesondere im Prothesenunterschenkel, welches mit Prothesenteile verbindbar ist.The invention is based on an insert for Prostheses, especially in the lower leg of the prosthesis, which can be connected to prosthetic parts.

Prothesen bestehen heute üblicherweise aus verschiedenen Modulen, welche entsprechend den individuellen Anforderungen über Adapter miteinander und mit einem Stumpf eines Patienten verbindbar sind. Als Material findet Metall oder Kohlefasern Verwendung.Today, prostheses usually consist of various modules, which correspond to the individual requirements using adapters and connectable to a patient's stump  are. Metal or carbon fiber is used as the material Use.

Im folgenden wird beispielhaft von einem Einsatzstück im Modular-Unterschenkel, welches Prothesenteile von Unterschenkel-, Knieex-, Hüftex- und Oberschenkelprothesen verbindet, ausgegangen.The following is an example of one Insert in the modular lower leg, which Prosthetic parts of lower leg, knee ex, hip ex- and thigh prostheses.

Bei einer Bewegung des Patienten mit der Prothese, also bei einem Aufsetzen des Fußes auf einen Boden, erfolgt ein Stoß auf den Stumpf und/oder das Becken des Patienten, wodurch Schmerzen, insbesondere in der Phase der Eingewöhnung und bei längeren Wanderungen oder sportlichen Betätigungen, verursacht werden können.When the patient moves with the prosthesis, when you put your foot on a floor, there is an impact on the stump and / or the Pelvis of the patient, causing pain, especially in the phase of getting used to and during longer hikes or sports activities, can be caused.

Der Erfindung liegt das Problem zugrunde ein Prothesenteil und eine Prothese bereitzustellen, bei dem bzw. der Stoßschmerzen auch in der Phase der Eingewöhnung und bei längeren Wanderungen oder sportlichen Betätigungen vermieden wird.The invention is based on the problem Provide prosthesis part and a prosthesis at the shock pain (s) also in the phase of Acclimatization and during long hikes or sporting activities is avoided.

Das Problem wird erfindungsgemäß in Verbindung mit den Merkmalen des Oberbegriffes des Anspruches 1 dadurch gelöst, daß eine Zweiteilung vorgesehen ist, daß die Teile relativ zueinander in Längsrichtung verschiebbar ausgebildet sind, und daß ein Dämpfungselement angeordnet ist.The problem is inventively in connection with the features of the preamble of claim 1 solved in that a division into two is provided, that the parts are relative to each other in the longitudinal direction are slidable, and that a Damping element is arranged.

Die Prothese kennzeichnet sich dadurch, daß ein erfindungsgemäßes Einsatzstück vorgesehen ist. The prosthesis is characterized in that a insert according to the invention is provided.  

Das üblicherweise einteilig ausgebildete Einsatzstück, beispielsweise der Prothesenunterschenkel, weist gemäß der Erfindung zwei Teile auf. Diese Teile sind zueinander verschiebbar angeordnet, wobei die Verschiebung in Längsrichtung der Prothese ermöglicht ist. Diesen beiden Teilen ist das Dämpfungselement zugeordnet und zwar derart, daß die beiden Teile über das Dämpfungselement miteinander in Verbindung stehen. Die Wirkrichtung des Dämpfungselementes stimmt mit der Längsrichtung des Einsatzstückes, also derjenigen Richtung, in der die Verschiebung ermöglicht ist, überein.This is usually made in one piece Insert, for example the Prosthetic lower leg, has according to the invention two parts on. These parts are related to each other slidably arranged, the displacement in Longitudinal direction of the prosthesis is made possible. This one the damping element is assigned to both parts in such a way that the two parts over the Damping element are connected. The direction of action of the damping element agrees the longitudinal direction of the insert, that is the direction in which the shift is allowed to match.

Bei dem Auftreten wird die von einem Boden ausgeübte Gegenkraft von dem einen Teil über das Dämpfungselement und anschließend auf das zweite Teil übertragen. Ein Auftrittstoß wird durch die damit erzielte Dämpfung wirksam vermieden.When it occurs, the one exerted by a floor Drag of one part over the Damping element and then on the second Transfer part. A kick is made by the damping thus effectively avoided.

Die Teile können als Hülse und Prothesenhülse ausgebildet sein, wobei die Hülse zumindest teilweise in die Prothesenhülse hineinragt und an der Hülse insbesondere ein Prothesenfuß und an der Prothesenhülse ein Kniegelenk oder ein Prothesenanschluß befestigbar sein kann. Die Hülse ragt in die Prothesenhülse hinein und wird dort über ein Lager geführt. Das Lager sorgt gleichzeitig für eine möglichst reibungsfreie Verschiebbarkeit zwischen den beiden Hülsen. Zwischen den beiden Hülsen, also der Prothesenhülse und der Hülse, ist das Dämpfungselement angeordnet. Die Anschlüsse für die weiteren Prothesenelemente können vorzugsweise Adapter aufweisen, wodurch eine schnelle und einfache Auswechslung sichergestellt ist.The parts can be used as a sleeve and prosthesis sleeve be formed, the sleeve at least partially protrudes into the prosthesis sleeve and on the sleeve in particular a prosthetic foot and on the Prosthesis sleeve a knee joint or a Prosthetic connector can be fastened. The sleeve protrudes into the prosthesis sleeve and is over there run a camp. The camp also ensures as smooth a displacement as possible between the two sleeves. Between the two Sleeves, i.e. the prosthesis sleeve and the sleeve arranged the damping element. The connections for the further prosthesis elements can preferably  Have adapters, making a quick and easy replacement is ensured.

Das Dämpfungselement kann als Elastomerblock oder Feder ausgebildet sein. Dies hat den Vorteil, daß - bei Belastung - die Abmessungen verringert und bei einer Entlastung die Abmessungen des Dämpfungselementes selbständig wieder die ursprünglichen annehmen. Die Ausdehnung in die ursprüngliche Lage bewirkt beim Laufen einen leichten Schub und beschleunigt den Fuß. Das Laufen wird damit angenehmer und erfordert einen geringeren Energieaufwand.The damping element can be used as an elastomer block or Be formed spring. This has the advantage that - under load - the dimensions reduced and at a relief the dimensions of the Damping element independently again assume original. The expansion into the original position causes one to walk slight thrust and accelerates the foot. The running becomes more pleasant and requires less Energy expenditure.

Dem Dämpfungselement kann eine Vorspanneinrichtung zugeordnet sein. Dadurch wird eine individuelle Anpassung ermöglicht. Als Parameter kommen Körpergewicht, Bodenbeschaffenheit und Laufart (Gehen, sportliche Betätigung wie Langlauf etc.) in Frage. Die Vorspanneinrichtung kann mechanisch und/ oder elektronisch ansteuerbar sein. Weiterhin kann eine Regelung vorgesehen sein, die mit einem Drucksensor zusammenarbeitet und über die Vorspanneinrichtung die Härte des Dämpfungselementes in Abhängigkeit des gemessenen Auftrittsdruckes reguliert.The damping element can be a biasing device be assigned. This makes an individual Adaptation enables. Come as parameters Body weight, ground conditions and type of running (Walking, sporting activities such as cross-country skiing etc.) in Question. The pretensioning device can be mechanically and / or can be controlled electronically. Furthermore can a regulation can be provided that with a Pressure sensor works together and over the Preload device the hardness of the damping element depending on the measured pressure regulated.

Bei der mechanisch arbeitenden Vorspanneinrichtung kann eine mit der Prothesenhülse verbundene Gewindehülse vorgesehen sein, die mit einer Gewindeplatte zusammenarbeitet und das Dämpfungselement kann an ein mit der Hülse verbundenes Gegenlager anpreßbar sein. Die Gewindehülse ist mit der Prothesenhülse fest verbunden. In die Gewindehülse greift die Gewindeplatte ein, an der einseitig das Dämpfungselement anliegt. Eine longitudinale Bewegung der Gewindeplatte und damit auch des eines Endes des Dämpfungselementes erfolgt durch eine Drehung der Gewindeplatte, die dafür eine entsprechende Werkzeugaufnahme aufweist.With the mechanically working pretensioner can be connected to the prosthesis sleeve Threaded sleeve can be provided with a Threaded plate works together and that Damping element can be attached to the sleeve connected counter bearing be pressed. The  The threaded sleeve is fixed to the prosthesis sleeve connected. It engages in the threaded sleeve Threaded plate on which the Damping element is present. A longitudinal Movement of the threaded plate and thus one End of the damping element is done by a Rotation of the threaded plate, which is a has corresponding tool holder.

Das der Gewindeplatte abgewandte Ende des Dämpfungselementes liegt an dem Gegenlager an, welches mit der Hülse verbunden ist.The end of the threaded plate facing away Damping element rests on the counter bearing which is connected to the sleeve.

Ein Schrauben der Gewindeplatte in Richtung des Gegenlagers bewirkt somit ein Zusammendrücken des Dämpfungselementes, ein Schrauben in Gegenrichtung eine entsprechende Entspannung. Somit ist die Möglichkeit geschaffen, die Charakteristik des Dämpfungselementes zu beeinflussen. Es versteht sich, daß darüber hinaus auch verschiedene Dämpfungselemente mit verschiedenen Charakteristiken vorgesehen sein können, die je nach Bedarf einsetzbar sind. Die Feineinstellung erfolgt dann mittels der Vorspanneinrichtung.Screwing the threaded plate in the direction of the Counter bearing thus causes a compression of the Damping element, screwing in the opposite direction a corresponding relaxation. So that is Possibility created the characteristics of the To influence damping element. It understands yourself that beyond that also different Damping elements with different characteristics can be provided as needed can be used. The fine adjustment then takes place by means of the pretensioner.

Es kann eine Verdrehsicherung vorgesehen sein, die eine Verdrehung der Hülse relativ zu der Prothesenhülse verhindert.An anti-rotation device can be provided a rotation of the sleeve relative to the Prosthesis sleeve prevented.

Die Verdrehsicherung kann einen mit einem Keil zusammenarbeitenden Schlitzbolzen aufweisen. Der Schlitzbolzen kann mit der Hülse und der Keil mit der Prothesenhülse drehfest verbunden sein. The anti-rotation device can be used with a wedge have cooperating slot bolts. Of the Slotted bolt can be used with the sleeve and the wedge be connected to the prosthesis sleeve in a rotationally fixed manner.  

Die Erfindung wird anhand eines Ausführungsbeispiels weiter erläutert.The invention is based on an embodiment explained further.

Die Figur zeigt ein Einsatzstück 1, welches als Unterschenkelprothese ausgebildet ißt. Es ist eine Prothesenhülse 2 vorgesehen, die mit ihrem einen Ende mit einer hier nicht dargestellten Knieprothese oder einem Stumpf eines Patienten verbindbar ist.The figure shows an insert 1 , which is designed as a lower leg prosthesis. A prosthesis sleeve 2 is provided which can be connected at one end to a knee prosthesis (not shown here) or a patient's stump.

In der Prothesenhülse 2 ist drehfest eine Gewindehülse 3 angeordnet, die ein Innengewinde 4 aufweist und mit einer Gewindeplatte 5 zusammenarbeitet. Die Gewindeplatte 5 weist eine Werkzeugaufnahme 6, beispielsweise eine Achtkantbohrung, auf.A threaded sleeve 3 , which has an internal thread 4 and cooperates with a threaded plate 5 , is arranged in a rotationally fixed manner in the prosthesis sleeve 2 . The threaded plate 5 has a tool holder 6 , for example an octagonal hole.

Der Werkzeugaufnahme 6 gegenüberliegend ist eine Aufnahme 7 für ein Dämpfungselement 8′, hier einem Elastomer 8, vorgesehen.The tool holder 6 opposite a receptacle 7 for a damping element 8 ', here an elastomer 8 , is provided.

Das Elastomer 8 liegt mit seinem der Gewindeplatte 5 abgewandten Ende auf einem Gegenlager 9 auf, das mit einer Hülse 10 verbunden ist. Die Außenabmessungen des Gegenlagers 9 sind geringfügig kleiner als der Innendurchmesser der Gewindehülse 3.The end of the elastomer 8 facing away from the threaded plate 5 rests on a counter bearing 9 which is connected to a sleeve 10 . The outer dimensions of the counter bearing 9 are slightly smaller than the inner diameter of the threaded sleeve 3 .

Die Hülse 10 wird mit ihrer überwiegenden Längserstreckung von der Prothesenhülse 2 umschlossen. Im Überdeckungsbereich der Hülse 10 mit der Prothesenhülse 2 und innerhalb der Prothesenhülse 2 ist ein Lager 11 vorgesehen, welches eine reibungsarme longitudinale Verschiebung der Prothesenhülse 2 relativ zu der Hülse 10 ermöglicht.The sleeve 10 is enclosed with its predominant longitudinal extent by the prosthesis sleeve 2 . In the area of overlap of the sleeve 10 with the prosthesis sleeve 2 and inside the prosthesis sleeve 2 , a bearing 11 is provided which enables a low-friction longitudinal displacement of the prosthesis sleeve 2 relative to the sleeve 10 .

Die Gewindehülse 4 erstreckt sich mit ihrem einen Ende bis auf einen Abstand 12 zu dem Lager 11. Der Abstand 12 entspricht dem maximalen Hub. Die Hubbegrenzung ist durch ein Aufsetzen der Gewindehülse 3 auf das Lager 11 realisiert, das Lager 11 bildet also einen Anschlag 13.One end of the threaded sleeve 4 extends to a distance 12 from the bearing 11 . The distance 12 corresponds to the maximum stroke. The stroke limitation is realized by placing the threaded sleeve 3 on the bearing 11 , the bearing 11 thus forming a stop 13 .

An dem dem Gegenlager abgewandten Ende der Hülse 10 ist ein Adapter 14 vorgesehen, an den ein Prothesenfuß anbringbar ist.At the end of the sleeve 10 facing away from the counter bearing, an adapter 14 is provided, to which a prosthetic foot can be attached.

Eine Verdrehsicherung 15 ist mittels eines Keiles 16 und eines Schlitzbolzens 17 realisiert. Der Keil 16 ist mit der Prothesenhülse 2 und der Schlitzbolzen 17 über den Adapter 15 mit der Hülse 10 drehfest verbunden. Der Schlitzbolzen 17 weist einen Schlitz auf, in dem der Keil 16 bei longitudinalen Bewegungen geführt wird.An anti-rotation device 15 is realized by means of a wedge 16 and a slotted bolt 17 . The wedge 16 is connected to the prosthesis sleeve 2 and the slot bolt 17 via the adapter 15 to the sleeve 10 in a rotationally fixed manner. The slot bolt 17 has a slot in which the wedge 16 is guided during longitudinal movements.

Bei einem Aufsetzen eines Fußes wird der Stoß über die Hülse 10 und das Gegenlager 9 auf das Elastomer 8 übertragen. Die Hülse 10 schiebt sich in dem Lager 11 in die Prothesenhülse 2 hinein und drückt das Elastomer 8 zusammen. Dieses leitet dann die dem Auftritt entsprechende Gegenkraft um den Stoß gedämpft der Prothesenhülse 2 zu.When a foot is put on, the impact is transmitted to the elastomer 8 via the sleeve 10 and the counter bearing 9 . The sleeve 10 slides into the prosthesis sleeve 2 in the bearing 11 and compresses the elastomer 8 . This then transmits the counterforce corresponding to the impact damped by the shock to the prosthesis sleeve 2 .

Zum Einstellen der Dämpfungscharakteristik wird mittels eines Werkzeuges über eine Vorspanneinrichtung 18 auf das Elastomer 8 eingewirkt. Dafür wird die Gewindeplatte 5 in der Gewindehülse 3 verdreht, wodurch, in Abhängigkeit der Drehrichtung, eine größere bzw. kleinere Vorspannung und damit ein härteres bzw. weicheres Reagieren des Elastomers 8 erreicht wird.To set the damping characteristic, the elastomer 8 is acted on by means of a tool via a pretensioning device 18 . For this purpose, the threaded plate 5 is rotated in the threaded sleeve 3 , whereby, depending on the direction of rotation, a greater or lesser preload and thus a harder or softer reaction of the elastomer 8 is achieved.

Wird der maximale Abstand 12 beim Eintauchen der Hülse 10 in die Prothesenhülse 2 erreicht, wird ein weiteres Eintauchen durch den Anschlag 13 vermieden.If the maximum distance 12 is reached when the sleeve 10 is immersed in the prosthesis sleeve 2 , further immersion by the stop 13 is avoided.

Der Keil 16 der Verdrehsicherung 15 erlaubt die erwünschte longitudinale Bewegung, unterbindet aber durch entsprechendes Anschlagen an der Innenwandung des Schlitzbolzens 17 eine Verdrehung des Fußes.The wedge 16 of the anti-rotation device 15 permits the desired longitudinal movement, but prevents twisting of the foot by correspondingly striking the inner wall of the slot bolt 17 .

BezugszeichenlisteReference list

1 Einsatzstück
2 Prothesenhülse
3 Gewindehülse
4 Innengewinde
5 Gewindeplatte
6 Werkzeugaufnahme
7 Aufnahme
8 Elastomer
8′ Dämpfungselement
9 Gegenlager
10 Hülse
11 Lager
12 Abstand
13 Anschlag
14 Adapter
15 Verdrehsicherung
16 Keil
17 Schlitzbolzen
18 Vorspanneinrichtung 1 insert
2 prosthesis sleeve
3 threaded sleeve
4 internal threads
5 threaded plate
6 tool holder
7 recording
8 elastomer
8 ' damping element
9 counter bearing
10 sleeve
11 bearings
12 distance
13 stop
14 adapters
15 anti-rotation lock
16 wedge
17 slotted bolts
18 pretensioning device

Claims (10)

1. Einsatzstück für Prothesen, insbesondere im Prothesenunterschenkel, welches mit Prothesenteile verbindbar ist, dadurch gekennzeichnet, daß eine Zweiteilung vorgesehen ist, daß die Teile (2, 10) relativ zueinander in Längsrichtung verschiebbar ausgebildet sind, und daß ein Dämpfungselement (8′) angeordnet ist.1. insert for prostheses, in particular in the lower leg of the prosthesis, which can be connected to prosthesis parts, characterized in that a division is provided that the parts ( 2 , 10 ) are designed to be displaceable in the longitudinal direction relative to one another, and that a damping element ( 8 ') is arranged is. 2. Einsatzstück nach Anspruch 1, dadurch gekennzeichnet, daß die Teile als Hülse (10) und Prothesenhülse (2) ausgebildet sind, daß die Hülse (10) zumindest teilweise in die Prothesenhülse (2) hineinragt, und daß an der Hülse (10) insbesondere ein Prothesenfuß und an der Prothesenhülse (2) insbesondere ein Kniegelenk oder ein Prothesenanschluß befestigbar ist.2. Insert according to claim 1, characterized in that the parts are designed as a sleeve ( 10 ) and prosthesis sleeve ( 2 ), that the sleeve ( 10 ) at least partially protrudes into the prosthesis sleeve ( 2 ), and that on the sleeve ( 10 ) in particular a prosthesis foot and in particular a knee joint or a prosthesis connection can be fastened to the prosthesis sleeve ( 2 ). 3. Einsatzstück nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Dämpfungselement (8′) als Elastomerblock (8) ausgebildet ist.3. Insert according to claim 1 or 2, characterized in that the damping element ( 8 ') is designed as an elastomer block ( 8 ). 4. Einsatzstück nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Dämpfungselement (8′) als Druckfeder ausgebildet ist. 4. Insert according to claim 1 or 2, characterized in that the damping element ( 8 ') is designed as a compression spring. 5. Einsatzstück nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß dem Dämpfungselement (8′) eine Vorspanneinrichtung (18) zugeordnet ist.5. Insert according to one or more of claims 1 to 4, characterized in that the damping element ( 8 ') is assigned a biasing device ( 18 ). 6. Einsatzstück nach Anspruch 5, dadurch gekennzeichnet, daß die Vorspanneinrichtung (18) eine mit der Prothesenhülse (2) verbundene Gewindehülse (3) aufweist, die mit einer Gewindeplatte (5) zusammenarbeitet und das Dämpfungselement (8′) an ein mit der Hülse (10) verbundenes Gegenlager (9) anpreßbar ist.6. Insert according to claim 5, characterized in that the biasing means ( 18 ) with a prosthesis sleeve ( 2 ) connected to the threaded sleeve ( 3 ) which cooperates with a threaded plate ( 5 ) and the damping element ( 8 ') to a with the sleeve ( 10 ) connected counter bearing ( 9 ) can be pressed. 7. Einsatzstück nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine Verdrehsicherung (15) vorgesehen ist.7. Insert according to one or more of claims 1 to 6, characterized in that an anti-rotation device ( 15 ) is provided. 8. Einsatzstück nach Anspruch 7, dadurch gekennzeichnet, daß die Verdrehsicherung (15) einen mit einem Keil (16) zusammenarbeitenden Schlitzbolzen (17) aufweist.8. Insert according to claim 7, characterized in that the anti-rotation device ( 15 ) has a slot bolt ( 17 ) working together with a wedge ( 16 ). 9. Einsatzstück nach Anspruch 8, dadurch gekennzeichnet, daß der Schlitzbolzen (17) mit der Hülse (10) und der Keil (16) mit der Prothesenhülse (2) drehfest verbunden ist.9. Insert according to claim 8, characterized in that the slot bolt ( 17 ) with the sleeve ( 10 ) and the wedge ( 16 ) with the prosthesis sleeve ( 2 ) is rotatably connected. 10. Prothese, insbesondere Fußprothese, dadurch gekennzeichnet, daß ein Einsatzstück (1) gemäß einem oder mehreren der Ansprüche 1 bis 9 vorgesehen ist.10. prosthesis, in particular foot prosthesis, characterized in that an insert ( 1 ) according to one or more of claims 1 to 9 is provided.
DE19642719A 1995-10-17 1996-10-17 Insert piece for prosthesis Withdrawn DE19642719A1 (en)

Priority Applications (1)

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DE19642719A DE19642719A1 (en) 1995-10-17 1996-10-17 Insert piece for prosthesis

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DE29516455U DE29516455U1 (en) 1995-10-17 1995-10-17 Spring-loaded / cushioned lower leg for prostheses
DE19642719A DE19642719A1 (en) 1995-10-17 1996-10-17 Insert piece for prosthesis

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DE19642719A Withdrawn DE19642719A1 (en) 1995-10-17 1996-10-17 Insert piece for prosthesis

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998029059A1 (en) * 1996-12-31 1998-07-09 Lord Corporation Prosthetic suspension insert
WO1998056320A1 (en) * 1997-05-30 1998-12-17 Gramtec Innovation Ab Shock- and torque absorber in a leg prothesis
WO1999052475A1 (en) * 1998-04-10 1999-10-21 Phillips L Van Coil spring shock module prosthesis
US6511512B2 (en) 1998-04-10 2003-01-28 Ossur Hf Active shock module prosthesis
US6969408B2 (en) 2003-09-30 2005-11-29 Ossur Engineering, Inc. Low profile active shock module prosthesis

Families Citing this family (1)

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WO1993024080A1 (en) * 1992-06-02 1993-12-09 Pro-Pel Aktiebolag Foot prosthesis

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DE327494C (en) * 1920-10-13 Fritz Hansen Artificial foot with heel and toe suspension
DE3125209A1 (en) * 1981-06-26 1983-01-13 Keiai Orthopedic Appliance Co., Ltd., Tokyo Foot part of a prosthesis
US4883493A (en) * 1985-11-15 1989-11-28 Martel Guy G Leg prosthesis
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Cited By (9)

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WO1998029059A1 (en) * 1996-12-31 1998-07-09 Lord Corporation Prosthetic suspension insert
WO1998056320A1 (en) * 1997-05-30 1998-12-17 Gramtec Innovation Ab Shock- and torque absorber in a leg prothesis
WO1999052475A1 (en) * 1998-04-10 1999-10-21 Phillips L Van Coil spring shock module prosthesis
US6478826B1 (en) 1998-04-10 2002-11-12 Van L. Phillips Shock module prosthesis
US6511512B2 (en) 1998-04-10 2003-01-28 Ossur Hf Active shock module prosthesis
US6887279B2 (en) 1998-04-10 2005-05-03 össur hf Active shock module prosthesis
US7169190B2 (en) 1998-04-10 2007-01-30 Van L. Phillips Active shock module prosthesis
US6969408B2 (en) 2003-09-30 2005-11-29 Ossur Engineering, Inc. Low profile active shock module prosthesis
US7371262B2 (en) 2003-09-30 2008-05-13 össur hf Low profile active shock module prosthesis

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