WO2001006960A1 - Anti-dislocation bilateral hip prosthesis - Google Patents

Anti-dislocation bilateral hip prosthesis Download PDF

Info

Publication number
WO2001006960A1
WO2001006960A1 PCT/IT2000/000284 IT0000284W WO0106960A1 WO 2001006960 A1 WO2001006960 A1 WO 2001006960A1 IT 0000284 W IT0000284 W IT 0000284W WO 0106960 A1 WO0106960 A1 WO 0106960A1
Authority
WO
WIPO (PCT)
Prior art keywords
dislocation
hip prosthesis
acetabular
stem
prosthesis according
Prior art date
Application number
PCT/IT2000/000284
Other languages
English (en)
French (fr)
Inventor
Donato Caldaroni
Fiore Caldaroni
Original Assignee
Tecnomeccanica S.R.L.
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 Tecnomeccanica S.R.L. filed Critical Tecnomeccanica S.R.L.
Priority to IL14754600A priority Critical patent/IL147546A0/xx
Priority to EP00944244A priority patent/EP1196117A1/en
Priority to AU58472/00A priority patent/AU5847200A/en
Priority to JP2001511853A priority patent/JP2003505147A/ja
Priority to CA002379789A priority patent/CA2379789A1/en
Publication of WO2001006960A1 publication Critical patent/WO2001006960A1/en

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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
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    • 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
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    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
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    • 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
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    • 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
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    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
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    • A61F2002/3233—Joints for the hip having anti-luxation means for preventing complete dislocation of the femoral head from the acetabular cup
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2002/3241—Joints for the hip having a ring, e.g. for locking the femoral head into the acetabular cup
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • A61F2002/3401—Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3652—Connections of necks to shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2002/3678—Geometrical features
    • A61F2002/3694—Geometrical features with longitudinal bores
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
    • 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
    • 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
    • A61F2220/0041—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • 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
    • A61F2230/0067—Three-dimensional shapes conical
    • 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
    • A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
    • 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
    • A61F2310/00179—Ceramics or ceramic-like structures

Definitions

  • the present invention relates to an anti-dislocation bilateral hip prosthesis. More particularly, the invention relates to prosthesis of the above kind, realised in such a way to allow a remarkably higher mobility of the lower limbs with respect to what can be obtained by the present prosthesis.
  • Hip prosthesis presently available on the market allows a sufficient gait, but they are characterised y a high dislocation risk.
  • the maximum reachable angle by the limb is of 90°.
  • the maximum reachable angle is of 10°
  • the maximum reachable angle is of 10° with respect to the human body axis when in an erected position.
  • the Applicant has realised a hip prosthesis able to solve the above-mentioned drawbacks, mainly allowing a higher gait freedom and remarkably reducing the dislocation risk.
  • the solution according to the invention As already said, it is obtained an optimum gait mobility for the lower limbs, with particular reference to the flexion, adduction and extension. Particularly, the solution according to the present invention allows to obtain a limb flexion of about 127°, an adduction angle of 50° and an extension angle of about 42°. Furthermore, by the solution according to the invention, in case the above mentioned values are passed, the prosthesis does not dislocate under standard conditions, i.e. while sleeping, seating, going up and down the stairs, sleeping, etc. with the consequent practical and psychological advantages for the patient.
  • an anti- dislocation bilateral hip prosthesis comprising a stem, that is introduced within a corresponding vertical hole realised into the femur, a femoral head, that is inserted within a corresponding hole realised into the collum femoris, and that couples with said stem, said femoral head having a joint spherical end, an acetabular cotyle, implanted in the pelvis and an anti friction acetabular cup, provided between said acetabular cotyle and said spherical end of the femoral head.
  • said anti friction acetabular cup is kept within the acetabular cotyle by a ring.
  • said stem has a truncated cone section, and can be comprised of metallic material, such as titanium alloy, or AISI 316 L stainless steel, or any other anti-rejection material.
  • said femoral head can be coupled with said stem by threading, truncated cone coupling, etc.
  • said femoral head can be comprised of metallic material, such as titanium alloy, or AISI 316 L stainless steel, or ceramic material, or any other anti-rejection material.
  • metallic material such as titanium alloy, or AISI 316 L stainless steel, or ceramic material, or any other anti-rejection material.
  • a locking screw can be provided, acting along the axis of the stem.
  • said acetabular cotyle can be implanted in the pelvis by screws, or it is cemented, or fixed, or fixed in any other way.
  • said acetabular cotyle can be comprised of metallic material, such as titanium alloy, or AISI 316 L stainless steel, or any other anti-rejection material.
  • said anti friction acetabular cup can be comprised of non-toxic polyammidic material according to the F.D.A. rules N° C.F.R. 177.2415 and the UE rules N° 90/128/E.E.C, or of ceramic material or any other anti-rejection material.
  • said ring provided between the acetabular cup and the femoral head can be fixed to the acetabular cotyle by screws.
  • said ring can be comprised of non-toxic polyammidic material according to the F.D.A. rules N° C.F.R. 177.2415 and the UE rules N° 90/128/E.E.C.
  • figure 1 is a perspective view of an embodiment of a hip prosthesis according to the invention
  • figure 2 is a vertical section view of the hip prosthesis of figure
  • figure 3 is an exploded view of the hip prosthesis of figure 1;
  • figures 4a and 4b show the operation of the prosthesis according to the invention during the flexion,
  • figures 5a and 5b show the operation of the prosthesis according to the invention during the adduction;
  • figures 6a and 6b show the operation of the prosthesis according to the invention during the extension.
  • the prosthesis according to the invention comprises a plurality of elements, among which a stem 2, that is implanted within the femur 3 (see figure 2).
  • Said stem 2 is realised in such a way to obtain a truncated cone sealing, or cemented, or of a different kind, and it is comprised of metallic material, such as titanium alloy, or AISI 316 L stainless steel, or any other anti-rejection material.
  • a femoral head that is coupled with the stem 2 by thread 5 with a truncated cone coupling.
  • Said femoral head 4 is comprised of metallic material, such as titanium alloy, or
  • the stem 2 and the femoral 4 are implanted (figure 2), their locking each other occurs by the locking screw 6, preferably comprised of metallic material, such as AISI 316 L stainless steel.
  • the acetabular cotyle 7 is comprised of metallic material, such as titanium alloy, or AISI 316 L stainless steel, or any other anti-rejection material.
  • the anti friction acetabular cup 8 that is kept into the acetabular cotyle 7 by the ring of the acetabular cup 8. It is comprised of non-toxic polyammidic material according to the F.D.A. rules N° C.F.R. 177.2415 and the UE rules N° 90/128/E.E.C, or of ceramic material or any other anti-rejection material. It is further provided a ring 9 of the anti dislocation sealing acetabular cup 8. Said rig is fixed to the acetabular cotyle 7 by screws 10. The ring 9 is comprised of non-toxic polyammidic material according to the F.D.A. rules N° C.F.R. 177.2415 and the UE rules N° 90/128/E.E.C.
  • Said screws 10 are preferably flared head screws, preferably comprised of metallic material, such as AISI 316 L stainless steel or titanium alloy, or any other anti-rejection material.
  • the structure of the prosthesis according to the invention is such that, even the above mentioned gait values are passed, dislocation does not occur in the already mentioned standard conditions.
  • the person subjected to a surgical intervention obtains a better safety condition.
  • the fact that the dislocation does not occur is due particularly to the presence of the containment rings 9 of the femoral heads 4, opposing a controlled resistance, established before by the orthopaedic surgeon, for example with a value between 500 g and 15 kg, or higher, in function of the patient weight.
  • the solution according to the invention allows an easy "closed view” reduction of the prosthesis 1, i.e. without surgical intervention, as occurs in case of dislocation of the known prosthesis, with a general anaesthesia.
  • the reduction of the prosthesis according to the invention only requires a specialistic orthopaedic intervention, that is carried out lengthening the lower limb and its extension according to the adduction direction for about 30°.
  • prosthesis 1 according to the invention are easily reduced since the femoral heads 4 in that point have the spherical profile comprised of a ring shaped bas-relief having such dimensions to freely allow the reductions in the acetabular cups 8 without any stress.
  • prosthesis 1 according to the invention concerns the implantology intervention.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
PCT/IT2000/000284 1999-07-27 2000-07-11 Anti-dislocation bilateral hip prosthesis WO2001006960A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IL14754600A IL147546A0 (en) 1999-07-27 2000-07-11 Anti-dislocation bilateral hip prosthesis
EP00944244A EP1196117A1 (en) 1999-07-27 2000-07-11 Anti-dislocation bilateral hip prosthesis
AU58472/00A AU5847200A (en) 1999-07-27 2000-07-11 Anti-dislocation bilateral hip prosthesis
JP2001511853A JP2003505147A (ja) 1999-07-27 2000-07-11 脱臼防止両股義足
CA002379789A CA2379789A1 (en) 1999-07-27 2000-07-11 Anti-dislocation bilateral hip prosthesis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFR99A000014 1999-07-27
IT1999FR000014A IT1316060B1 (it) 1999-07-27 1999-07-27 Protesi di anca bilaterale antilussante.

Publications (1)

Publication Number Publication Date
WO2001006960A1 true WO2001006960A1 (en) 2001-02-01

Family

ID=11353941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2000/000284 WO2001006960A1 (en) 1999-07-27 2000-07-11 Anti-dislocation bilateral hip prosthesis

Country Status (7)

Country Link
EP (1) EP1196117A1 (ja)
JP (1) JP2003505147A (ja)
AU (1) AU5847200A (ja)
CA (1) CA2379789A1 (ja)
IL (1) IL147546A0 (ja)
IT (1) IT1316060B1 (ja)
WO (1) WO2001006960A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104840277A (zh) * 2015-05-22 2015-08-19 中奥汇成科技股份有限公司 一种人工髋臼外杯
CN104874019A (zh) * 2015-05-22 2015-09-02 中奥汇成科技股份有限公司 一种人工关节股骨柄

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067740A (en) * 1959-09-08 1962-12-11 Edward J Haboush Hip joint prosthesis
US3683421A (en) * 1970-07-13 1972-08-15 Skf Ind Inc Prosthetic joint assembly
FR2183230A1 (ja) * 1972-05-04 1973-12-14 Saratovsky G Medit
FR2210909A5 (ja) * 1972-12-20 1974-07-12 Rambert Andre
EP0257359A1 (en) * 1986-08-15 1988-03-02 Boehringer Mannheim Corporation Modular hip prosthesis
EP0485311A1 (fr) * 1990-11-06 1992-05-13 Merck Biomaterial France Tige fémorale perfectionnée pour prothèse de hanche
EP0655230A1 (de) * 1993-11-26 1995-05-31 CERASIV GmbH INNOVATIVES KERAMIK-ENGINEERING Konische Hüftgelenkpfanne ohne Selbsthemmung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067740A (en) * 1959-09-08 1962-12-11 Edward J Haboush Hip joint prosthesis
US3683421A (en) * 1970-07-13 1972-08-15 Skf Ind Inc Prosthetic joint assembly
FR2183230A1 (ja) * 1972-05-04 1973-12-14 Saratovsky G Medit
FR2210909A5 (ja) * 1972-12-20 1974-07-12 Rambert Andre
EP0257359A1 (en) * 1986-08-15 1988-03-02 Boehringer Mannheim Corporation Modular hip prosthesis
EP0485311A1 (fr) * 1990-11-06 1992-05-13 Merck Biomaterial France Tige fémorale perfectionnée pour prothèse de hanche
EP0655230A1 (de) * 1993-11-26 1995-05-31 CERASIV GmbH INNOVATIVES KERAMIK-ENGINEERING Konische Hüftgelenkpfanne ohne Selbsthemmung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104840277A (zh) * 2015-05-22 2015-08-19 中奥汇成科技股份有限公司 一种人工髋臼外杯
CN104874019A (zh) * 2015-05-22 2015-09-02 中奥汇成科技股份有限公司 一种人工关节股骨柄

Also Published As

Publication number Publication date
CA2379789A1 (en) 2001-02-01
IL147546A0 (en) 2002-08-14
EP1196117A1 (en) 2002-04-17
ITFR990014A1 (it) 2001-01-27
ITFR990014A0 (it) 1999-07-27
AU5847200A (en) 2001-02-13
JP2003505147A (ja) 2003-02-12
IT1316060B1 (it) 2003-03-28

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