US3896505A - Endoprosthesis for the hipjoint - Google Patents

Endoprosthesis for the hipjoint Download PDF

Info

Publication number
US3896505A
US3896505A US39013873A US3896505A US 3896505 A US3896505 A US 3896505A US 39013873 A US39013873 A US 39013873A US 3896505 A US3896505 A US 3896505A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
portion
member
channel
head
elbow
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.)
Expired - Lifetime
Application number
Inventor
Franz Donatus Timmermans
Original Assignee
Franz Donatus Timmermans
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
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56Porous materials, e.g. foams or sponges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02Inorganic materials
    • A61L27/04Metals or alloys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14Macromolecular materials
    • A61L27/18Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72Intramedullary pins, nails or other devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/74Devices for the head or neck or trochanter of the femur
    • A61B17/742Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/74Devices for the head or neck or trochanter of the femur
    • A61B17/742Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
    • A61B17/744Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to an intramedullary nail
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006Properties of materials and coating materials
    • A61F2002/30065Properties of materials and coating materials thermoplastic, i.e. softening or fusing when heated, and hardening and becoming rigid again when cooled
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections 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
    • A61F2002/30354Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30563Special 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30756Cartilage endoprostheses
    • A61F2002/30757Cartilage endoprostheses made of a sheet covering the natural articular surface, e.g. cap
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes, grooves
    • A61F2002/30795Blind bores, e.g. of circular cross-section
    • A61F2002/30807Plurality of blind bores
    • A61F2002/3081Plurality of blind bores inclined obliquely with respect to each other
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2002/30934Special articulating surfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3609Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3611Heads or epiphyseal parts of femur
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3609Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3611Heads or epiphyseal parts of femur
    • A61F2002/3617Heads or epiphyseal parts of femur with special cut-outs, e.g. flat cut-outs for inserting the head into a cooperating shell, in a given insertion position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3609Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3611Heads or epiphyseal parts of femur
    • A61F2002/3621Heads or epiphyseal parts of femur pierced with a longitudinal bore
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3609Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625Necks
    • A61F2002/3647Necks pierced with a longitudinal bore
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3609Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/365Connections of heads to necks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3662Femoral shafts
    • A61F2002/3678Geometrical features
    • A61F2002/3694Geometrical features with longitudinal bores
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2210/00Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0071Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof thermoplastic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033Connections 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/00395Coating or prosthesis-covering structure made of metals or of alloys
    • A61F2310/00401Coating made of iron, of stainless steel or of other Fe-based alloys

Abstract

An endoprosthesis for the hip joint includes a head portion, or artificial femoral head, and a substantially elbow-shaped member of polyethylene resiliently supporting said head portion. The elbow-shaped member includes a relatively short upper portion and a relatively long lower portion and defines at the junction of these two portions on one side a concave bent and on the other side a convex bent. Each of both portions is provided with an internal channel. One of these channels is substantially coaxial with the upper portion of said elbow-shaped member and has an entrance or opening situated at the convex bent of said elbowshaped member. The other of these channels is substantially coaxial with said lower portion of said elbow-shaped member and has an entrance or opening situated at the upper portion of said elbow-shaped member. The aforementioned channels intersect at an obtuse angle and each of the aforementioned channels receives one of a pair of pins or studs. The upper head portion or artificial femoral head defines a slanting channel into which said upper portion of said elbow-shaped member of polyethylene projects.

Description

United States Patent 1191 Timmermans 1 1 ENDOPROSTHESIS FOR THE HIPJOINT [76] lnventor: Franz Donatus Timmermans,

Brunswiker Strasse 1 la, 23 Kiel, Germany [221 Filed: Aug. 20, 1973 [21] Appl. No.: 390,138

Related U.S. Application Data [63] Continuation of Ser. No. 124,431, Aug. 23, 1971.

abandoned.

[52] U.S. Cl. ..3/1.913; 128/92 CA [51] Int. Cl. A6lf 1/24 [58] Field of Search ..3/1,1.913,l.912,1.91; 128/92 CA, 92 C, 92 R [56] References Cited UNITED STATES PATENTS 2,679,245 5/1954 Timmerrnans 128/92 CA 2,719,522 10/1955 Hudack 128/92 CA 2,781,758 2/1957 Chevalier 128/92 CA 3,064,645 11/1962 Ficat et a1. 128/92 CA 3,466,670 9/1969 Christiansen 3/1 FOREIGN PATENTS OR APPLICATIONS 1,122,634 5/1956 France 128/92 C 1,107,877 8/1955 France 128/92 C Primary Examin erRonald L. Frinks Attorney, Agent, or Firm-Erwin Salzer [57] ABSTRACT An endopros'thesis for the hip joint includes a head portion, or artificial femoral head, and a substantially elbow-shaped member of polyethylene resiliently supporting said head portion. The elbow-shaped member includes a relatively short upper portion and a relatively long lower portion and defines at the junction of these two portions on one side a concave bent and on the other side a convex bent. Each of both portions is provided with an internal channel. One of these channels is substantially coaxial with the upper portion of said elbow-shaped member and has an entrance or opening situated at the convex bent of said elbowshaped member. The other of these channels is substantially coaxial with said lower portion of said elbow-shaped member and has an entrance or opening situated at the upper portion of said elbow-shaped member. The aforementioned channels intersect at an obtuse angle and each of the aforementioned channels receives one of a pair of pins or studs. The upper head portion or artificial femoral head defines a slanting channel into which said upper portion of said elbowshaped member of polyethylene projects.

2 Claims, 3 Drawing Figures l ENDOPROSTHESIS FOR THE HIPJOINT This application is a continuation of application Ser. No. 124,431, filed Aug. 23, 1971 now abandon'ed.

BACKGROUND OF THE INVENTION This invention relates to a femoral endoprosthesis. This endoprosthesis calls for but a relatively simple resection of the natural femoral head which it replaces, allows a ready adaptation of it by the surgeon to the particular anatomy of his patient, and 'has a great di- SUMMARY or THE INVENTION An endoprosthesis embodying this invention includes a head portion or artificial femoral head which is at least in part of spherical shape and defines a first internal slanting channel. It further includes an elbowshaped member intended to perform the function of an intra-medullary nail. This substantially elbow-shaped member is of polyethylene and includes a relatively short upper portion projecting into said first slanting channel of said head portion and a relatively long lower portion enclosing an obtuse angle with said upper portion. Both portions of said elbow-shaped member define at the junction thereof at one side a convex bent and on the other side a concave bent. The aforementioned upper portion defines a second internal channel coaxial with said first internal channel of said head portion and having an entrance or opening situated at the region of said convex bent. The aforementioned lower portion of said substantially elbow-shaped member defines a third internal channel extending in a direction longitudinally thereof, intersecting with said second channel and having an entrance or opening situated at said upper portion of said elbow-shaped member. The prosthesis further includes a first pin and a second pin. The first pin has an end situated outside said elbowshaped member and projecting through said entrance or opening at said region of said convex bent of said elbow-shaped member into said upper portion thereof. The aforementioned second pin is arranged inside said third channel and inside said lower portion of said elbow-shaped member.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevation of a femoral endoprosthesis embodying the present invention;

FIG. 2 shows in side elevation a detail of the structure of FIG. 1; and

FIG. 3 is substantially a longitudinal section of the structure of FIG. 1, showing some parts thereof in elevation rather than in section.

DESCRIPTION OF PREFERRED EMBODIMENT In the drawings reference character a has been applied to generally indicate an artificial femoral head of a hip joint prosthesis. The member a is at least in part spherical and defines a first internal slanting channel, i.e.. an internal channel slanting from the lower left to the upper right. The artificial femoral head a is supported by an intra-medullary nail g,h of polyethylene which is substantially elbow-shaped and includes the relatively short upper portion 12 and the relatively long lower portion g. Portion 11 projects into the aforementioned slanting channel in artificial femoral head a.

concave bent and at the other side the left side in FIGS. 1 and -3 a concave bent and at the other sidethe left sidein FIGS. '1 and 3 a convex bent. The

upperportion h of 'the intra-medullary nail gJz defines a second internal channel to which referencecharacter v has been applied. Channel v is arranged in coaxial relation to the aforementioned internal slanting channel in head a. Channel v has an entrance or-opening situa'tdat the region of the convex bent betweenportions g and h of member gJnThe lower portion. g of member g,h defines a third internal channel to which reference character I has been applied. Channel 1 extends in a direction longitudinally of the" portion g of intramedullary nail g,h, intersects said second channel v and has an entrance situated at theaforementioned upper portion 11 of elbow-shaped member gJi. Reference character a has been applied to indicate a-first pin having a pointed end situated outside member gJz and projecting through the region of the convex bent of member g,h into the upper portion 11 thereof. Reference character m has been applied to indicate a second pin arranged inside of channel I and inside the lower portion g of elbow-shaped member g,h. The head portion a is preferably of a plastic material and supports a metallic substantially spherical shell 12 shown in detail in FIG. 2. The body 0 of a resilient substance. e.g., rubber, is arranged at the end of said first channel of said head portion a adjacent said spherical shell b and is covered by the latter. The upper portion 12 of elbow-shaped member gJi is loosely inserted into said first channel in head portion a and abuts with one end surface thereof against said body 0 of said resilient substance. Reference character I has been applied to indicate the edge of metallic cap or shell b. The base 0 of head portion a has a rim :4 to which shell b is affixed. Reference character p has been applied to indicate cavities formed between shell and body 0 of resilient material, which may be a rubberlike substance.

FIG. 2 shows cap or shell b as being a deep drawn metal part being spherical at the top or apex and including a cylindrical lower portion q bounded by dotted lines r and s. Shell b may be affixed to base c by pressing. the cylindrical portion q thereof into rim u of head portion a.

The elbow-shaped member g,h of a thermoplastic material such as polyethylene is formed by machining a straight shaft, e.g., by means of a lathe, providing it with the above described channels and then imparting to it the desired elbow-shape upon heating thereof to about -l00 C. Channel 1/ is drilled to its full diameter to receive stud d only following bending of part g,h to its elbow-shape.

While performing the hip joint operation the surgeon may re-heat and re-shape part g,h in accordance with particular requirements. The pin or stud d is conical at its end remote from head a as indicated at f. Portion f of stud a is provided with a plastic cover e. The intramedullary nail gJz may be inserted in warm and soft ened condition upon resection of the natural femoral head. Rod m is inserted into part g,h after the latter has been inserted by the surgeon into place. Thereupon the surgeon drills a hole into the trachanter side of the resection and allows to propagate hip joint forces throughout the femur much as in the natural state. The dimensional stability of the present endoprosthesis is largely due to the presence of the two intersecting passages v,[ and that of the two pins in and (1. Part 0 of rubber or spongy material forms a particularly effective shock-absorber.

I claim as my invention: 1. A femoral head prosthesis including a. a head portion (a) being at least in part of spherical shape and defining a first internal slanting channel; b. a substantially elbow-shaped member (gJr) of polyethylene including a relatively short upper portion (11) projecting into said first slanting channel of said head portion (a) and a relatively long lower portion (g) enclosing an obtuse angle with said upper portion (11), said upper portion (h) and said lower portion (g) of said elbow-shaped member (gJr) defining at the junction thereof at one side a concave bent and at the other side a convex bent, said upper portion (11) defining a second internal channel (v) coaxial with said first internal channel of said head portion (a) having an entrance situated at the region of said convex bent, and said lower portion (g) defining a third internal channel (1) extending in a direction longitudinally thereof, intersecting said second channel (v) and having an entrance situated at said upper portion (11) of said elbow-shaped member (gJz);

c. a first pin (d) having an end situated outside said elbow-shaped member (g,h) and projecting through said entrance at said region of said convex bent of said elbow-shaped member (gJi) into said upper portion (11) thereof; and

d. a second pin (m) arranged inside said third channel (I) and inside said lower portion (g) of said elbow-shaped member (g,h).

2. A femoral head prosthesis as specified in claim 1 wherein said head portion (a) is of a plastic material and supports a metallic substantially spherical shell (b), wherein a body (0) of a resilient substance is arranged at the end of said first channel of said head portion adjacent said spherical shell, and wherein said upper portion (11) of said elbow-shaped member (g,h) is loosely inserted into said first channel of said head portion and ab'uts with one end surface thereof against said body of said resilient substance.

Claims (2)

1. A femoral head prosthesis including a. a head portion (a) being at least in part of spherical shape and defining a first internal slanting channel; b. a substantially elbow-shaped member (g,h) of polyethylene including a relatively short upper portion (h) projecting into said first slanting channel of said head portion (a) and a relatively long lower portion (g) enclosing an obtuse angle with said upper portion (h), said upper portion (h) and said lower portion (g) of said elbow-shaped member (g,h) defining at the junction thereof at one side a concave bent and at the other side a convex bent, said upper portion (h) defining a second internal channel (v) coaxial with said first internal channel of said head portion (a) having an entrance situated at the region of said convex bent, and said lower portion (g) defining a third internal channel (l) extending in a direction longitudinally thereof, intersecting said second channel (v) and having an entrance situated at said upper portion (h) of said elbow-shaped member (g,h); c. a first pin (d) having an end situated outside said elbowshaped member (g,h) and projecting through said entrance at said region of said convex bent of said elbow-shaped member (g, h) into said upper portion (h) thereof; and d. a second pin (m) arranged inside said third channel (l) and inside said lower portion (g) of said elbow-shaped member (g, h).
2. A femoral head prosthesis as specified in claim 1 wherein said head portion (a) is of a plastic material and supports a metallic substantially spherical shell (b), wherein a body (o) of a resilient substance is arranged at the end of said first channel of said head portion adjacent said spherical shell, and wherein said upper portion (h) of said elbow-shaped member (g, h) is loosely inserted into said first channel of said head portion and abuts with one end surface thereof against said body of said resilient substance.
US3896505A 1970-03-31 1973-08-20 Endoprosthesis for the hipjoint Expired - Lifetime US3896505A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19702015324 DE2015324A1 (en) 1970-03-31 1970-03-31
FR7111285A FR2131069A5 (en) 1970-03-31 1971-03-31
US12443171 true 1971-08-23 1971-08-23
US3896505A US3896505A (en) 1970-03-31 1973-08-20 Endoprosthesis for the hipjoint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3896505A US3896505A (en) 1970-03-31 1973-08-20 Endoprosthesis for the hipjoint

Publications (1)

Publication Number Publication Date
US3896505A true US3896505A (en) 1975-07-29

Family

ID=27431047

Family Applications (1)

Application Number Title Priority Date Filing Date
US3896505A Expired - Lifetime US3896505A (en) 1970-03-31 1973-08-20 Endoprosthesis for the hipjoint

Country Status (1)

Country Link
US (1) US3896505A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080666A (en) * 1976-09-13 1978-03-28 Fixel Irving E Implantable prosthetic bone device
US4318191A (en) * 1980-08-13 1982-03-09 Massachusetts Institute Of Technology Compliant head femoral endoprosthesis
US4385405A (en) * 1979-10-03 1983-05-31 Teinturier Pierre L Hip prosthesis and its method of fitting
US4488319A (en) * 1981-10-26 1984-12-18 Clemson University Method of two-stage implantation of a joint prosthesis and prosthetic product
US4752295A (en) * 1985-02-07 1988-06-21 Sulzer Brothers Limited Metal bone implant
US4919673A (en) * 1988-02-29 1990-04-24 Sulzer Brothers Limited Prosthesis for a femoral head
US5197988A (en) * 1989-06-21 1993-03-30 Sulzer Brothers Limited Femoral prosthesis
US5211666A (en) * 1991-04-22 1993-05-18 New York University Hip joint femoral component endoprosthesis with a lateral load-transferring support surface
US5697932A (en) * 1994-11-09 1997-12-16 Osteonics Corp. Bone graft delivery system and method
US20030163202A1 (en) * 2002-02-06 2003-08-28 Lakin Ryan C. Modular resurfacing prosthetic
US20100331992A1 (en) * 2006-12-07 2010-12-30 Anatol Podolsky Method and apparatus for total hip replacement
US8579985B2 (en) 2006-12-07 2013-11-12 Ihip Surgical, Llc Method and apparatus for hip replacement
US8974540B2 (en) 2006-12-07 2015-03-10 Ihip Surgical, Llc Method and apparatus for attachment in a modular hip replacement or fracture fixation device
WO2016040296A1 (en) * 2014-09-08 2016-03-17 Wendelburg Kirk L Femoral stem and post system for hip prosthesis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679245A (en) * 1950-03-20 1954-05-25 Timmermans Frans Donatus Prosthesis for femoral heads
US2719522A (en) * 1952-07-08 1955-10-04 Stephen S Hudack Articular replacement
US2781758A (en) * 1954-01-29 1957-02-19 Chevalier Michel Jacques Artificial femoral head
US3064645A (en) * 1961-01-23 1962-11-20 Raymond P Ficat Damped prosthesis forming a substitute for the coxo-femoral articulation
US3466670A (en) * 1965-05-26 1969-09-16 Tor Christiansen Hip-joint prosthesis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679245A (en) * 1950-03-20 1954-05-25 Timmermans Frans Donatus Prosthesis for femoral heads
US2719522A (en) * 1952-07-08 1955-10-04 Stephen S Hudack Articular replacement
US2781758A (en) * 1954-01-29 1957-02-19 Chevalier Michel Jacques Artificial femoral head
US3064645A (en) * 1961-01-23 1962-11-20 Raymond P Ficat Damped prosthesis forming a substitute for the coxo-femoral articulation
US3466670A (en) * 1965-05-26 1969-09-16 Tor Christiansen Hip-joint prosthesis

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080666A (en) * 1976-09-13 1978-03-28 Fixel Irving E Implantable prosthetic bone device
US4385405A (en) * 1979-10-03 1983-05-31 Teinturier Pierre L Hip prosthesis and its method of fitting
US4318191A (en) * 1980-08-13 1982-03-09 Massachusetts Institute Of Technology Compliant head femoral endoprosthesis
US4488319A (en) * 1981-10-26 1984-12-18 Clemson University Method of two-stage implantation of a joint prosthesis and prosthetic product
US4752295A (en) * 1985-02-07 1988-06-21 Sulzer Brothers Limited Metal bone implant
US4919673A (en) * 1988-02-29 1990-04-24 Sulzer Brothers Limited Prosthesis for a femoral head
US5197988A (en) * 1989-06-21 1993-03-30 Sulzer Brothers Limited Femoral prosthesis
US5211666A (en) * 1991-04-22 1993-05-18 New York University Hip joint femoral component endoprosthesis with a lateral load-transferring support surface
US5697932A (en) * 1994-11-09 1997-12-16 Osteonics Corp. Bone graft delivery system and method
US6045555A (en) * 1994-11-09 2000-04-04 Osteonics Corp. Bone graft delivery system and method
US6142998A (en) * 1994-11-09 2000-11-07 Howmedica Osteonics Corp. Bone graft delivery surgical instruments
US6309395B1 (en) 1994-11-09 2001-10-30 Howmedica Osteonics Corp. Bone graft delivery surgical instruments
US7621962B2 (en) 2002-02-06 2009-11-24 Biomet Manufacturing Corp. Modular resurfacing prosthetic
US20060241779A1 (en) * 2002-02-06 2006-10-26 Lakin Ryan C Modular resurfacing prosthetic
US20030163202A1 (en) * 2002-02-06 2003-08-28 Lakin Ryan C. Modular resurfacing prosthetic
US20100331992A1 (en) * 2006-12-07 2010-12-30 Anatol Podolsky Method and apparatus for total hip replacement
US8029573B2 (en) * 2006-12-07 2011-10-04 Ihip Surgical, Llc Method and apparatus for total hip replacement
US8211183B2 (en) 2006-12-07 2012-07-03 Ihip Surgical, Llc Methods and systems for total hip replacement
US8579985B2 (en) 2006-12-07 2013-11-12 Ihip Surgical, Llc Method and apparatus for hip replacement
US8795381B2 (en) 2006-12-07 2014-08-05 Ihip Surgical, Llc Methods and systems for hip replacement
US20140350690A1 (en) * 2006-12-07 2014-11-27 Ihip Surgical, Llc Methods and systems for hip replacement
US8974540B2 (en) 2006-12-07 2015-03-10 Ihip Surgical, Llc Method and apparatus for attachment in a modular hip replacement or fracture fixation device
US9237949B2 (en) 2006-12-07 2016-01-19 Ihip Surgical, Llc Method and apparatus for hip replacement
WO2016040296A1 (en) * 2014-09-08 2016-03-17 Wendelburg Kirk L Femoral stem and post system for hip prosthesis

Similar Documents

Publication Publication Date Title
US3510883A (en) Joint prosthesis
US4051559A (en) Total prosthesis of the hip
US5413608A (en) Knee joint endoprosthesis for replacing the articular surfaces of the tibia
US3837008A (en) Endo-prosthesis for a wrist joint
US4938776A (en) Integrated ankle and foot prosthetic system
US4892549A (en) Dual-radius acetabular cup component
US5163963A (en) Prosthetic implant with spacers having tapered trailing edges
US3922726A (en) Joint prosthesis
US4986833A (en) Glenoid component for an artificial shoulder joint
US4883491A (en) Porous-coated artificial joints
USD295445S (en) Combined punctum plug dilator and inserter for treating dry eye or other ophthalmic ailments
US3798679A (en) Joint prostheses
US4728335A (en) Hip prosthesis
US4986834A (en) Load sharing femoral hip implant
US3852830A (en) Knee prosthesis
US2718228A (en) Artificial femoral heads in prostheses
US3943576A (en) Artificial hip joint made from two different surgical alloys
US3982281A (en) Hip-joint prosthesis device
US4998937A (en) Method of implanting extramedullary femoral head-neck prosthesis
US4069518A (en) Total ankle prosthesis
US4728334A (en) Shaft for hip joint prosthesis
US5522901A (en) Implant for replacing a rear patella part
US4969910A (en) Acetabular cup prosthesis
US5549699A (en) Bony fixation and support of a prosthesis
US5782926A (en) Wrist prosthesis