US3466670A - Hip-joint prosthesis - Google Patents

Hip-joint prosthesis Download PDF

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US3466670A
US3466670A US552578A US3466670DA US3466670A US 3466670 A US3466670 A US 3466670A US 552578 A US552578 A US 552578A US 3466670D A US3466670D A US 3466670DA US 3466670 A US3466670 A US 3466670A
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capitulum
hip
prosthesis
trunnion
spindle portion
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US552578A
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Tor Christiansen
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    • 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
    • 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
    • A61F2/367—Proximal or metaphyseal parts of 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30589—Sealing 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A61F2002/30785—Plurality of holes parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
    • 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
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
    • A61F2002/3631—Necks with an integral complete or partial peripheral collar or bearing shoulder at its base
    • 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
    • A61F2002/365—Connections of heads to 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
    • A61F2/3662—Femoral shafts
    • A61F2002/3678—Geometrical features
    • A61F2002/368—Geometrical features with lateral apertures, bores, holes or openings, e.g. for reducing the mass, for receiving fixation screws or for communicating with the inside of a hollow shaft
    • 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

Definitions

  • arr-JOINT PnosTaEsIs Filed may 24. 196e United States Patent O 3,466,670 HIP-JOINT PROSTHESIS Tor Christiansen, Kongsberg Sykehus, Kongsberg, Norway Filed May 24, 1966, Ser. No. 552,578 Claims priority, application; Norway, May 26, 1965, 158 43 Inf. Cl. A61f1/02, 5/04 U.S. Cl. 3-1 4 Claims ABSTRACT OF THE DISCLOSURE
  • the present invention relates to a hip-joint prosthesis of the kind consisting of a capitulum engaging the socket of the pelvis and a spindle portion connected thereto for insertion into the medullary cavity in the thigh-bone shaft.
  • Such hip-joint prostheses have previously been manufactured as a unitary metal member made from a noncorrosive material.
  • the capitulum has then been ballshaped with a polished surface adapted for sliding against the socket of the pelvis.
  • the known prostheses are very heavy, being made of solid material.
  • the placing of the prosthesis by operation necessitates a rather large incision to enable the prosthesis to be placed between the upper end of the thigh-bone shaft and the socket of the pelvis.
  • the invention has for its object to provide a hip-joint prosthesis whiclr eliminates the above-mentioned disadvantages.
  • a prosthesis according to the invention can thus be placed by making only a considerably reduced incision during the operation. 'Ihe patient has less pain, and the prosthesis is made less heavy than the known prostheses.
  • a prosthesis according to the invention is also easier to position correctly and results in better mobility for the leg after the operation.
  • a hip-joint prosthesis of the above-mentioned kind the characterizing feature of which is that an articulation is permitted between the capitulum and the spindle portion.
  • Said capitulum is substantially dismountable, and this makes it possible to employ a smaller incision to install the prosthesis in its proper position, the spindle portion being rst inserted in position in the medullary cavity in the high-bone shaft, after which the capitulum with appurtenant articulation is installed.
  • the capitulum consists of a convenient non-corrosive artificial material, for instance, tetratluorpolyethylene, which, is known,
  • 1 is the spindle portion of the prosthesis shaped in a manner known per se to be inserted into the medullary cavity in the thigh-bone shaft after the upper articular ball of the thigh-bone is removed, and the top edge of the thigh-bone shaft is suitably formed to give good support for a contact edge 4 arranged at the upper end of the spindle.
  • the spindle portion is made from a convenient non-corrosive metal and can be provided with lightening holes 2 as well as a guide rib 3 for better localization in the medullary cavity.
  • a cylindrical trunnion 5 is arranged level with the upper end of the spindle portion. Said trunnion 5 co-operates with a cylindrical aperture 6' in the capitulum 6, which is substantially spherical.
  • the capitulum 6 is preferably made of tetrafluorpolyethylene or other suitable artificial material which can be exposed to the body liquids, and which provides a self-lubricating effect in engagement with the trunnion 5.
  • an O-ring seal 8 may be employed near the inner end of the trunnion.
  • the above-mentioned previously known hip-joint prostheses were provided with a capitulum, level with the spindle portion and adapted for direct movable engagement with the socket of the pelvis.
  • the capitulum was therefore substantially arranged in the extension of the spindle portion.
  • the capitulum according to the invention is, however, arranged so that its y axis forms an angle a with the principal x axis. Said angle is at least 45 when it relates to a trunnion as shown on the drawing, and preferably approximately 65.
  • the capitulum 6, according to the invention is preferably made of self-lubricating plastic material
  • the capitulum 6 and the spindle portion 1 are produced as two separate but unitable parts, the incision made during the operation can be much reduced in length, the surgeon first inserting the spindle portion 1 and then mounting the capitulum 6. Said insertion of the spindle portion is further facilitated by the upper end thereof being provided -with a groove 7 or the like, suitable for co-operation with convenient tools for applying the necessary insertion force.
  • the invention is not limited to the shown and described details, but can be modified in several ways without departing from the inventive idea.
  • the shown and described trunnion can be replaced by another suitable trunnion connection, for instance, a ball-and-socket joint, if convenient with limited engagement surfaces for possible mutual movement between the parts.
  • Locking members between the capitulum and the spindle portion are normally not necessary, these parts being kept in place by muscular exertion. If, however, a trunnion connection not expected to be kept in place by normal muscular exertion is used, suitable lock: ing members will also form a part of the prosthesis.
  • Hip-joint prosthesis comprising:

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

Description

16 1969 T. c-IRls'rlANsN y l 3,466,670
arr-JOINT PnosTaEsIs Filed may 24. 196e United States Patent O 3,466,670 HIP-JOINT PROSTHESIS Tor Christiansen, Kongsberg Sykehus, Kongsberg, Norway Filed May 24, 1966, Ser. No. 552,578 Claims priority, application; Norway, May 26, 1965, 158 43 Inf. Cl. A61f1/02, 5/04 U.S. Cl. 3-1 4 Claims ABSTRACT OF THE DISCLOSURE The present invention relates to a hip-joint prosthesis of the kind consisting of a capitulum engaging the socket of the pelvis and a spindle portion connected thereto for insertion into the medullary cavity in the thigh-bone shaft. Such hip-joint prostheses have previously been manufactured as a unitary metal member made from a noncorrosive material. The capitulum has then been ballshaped with a polished surface adapted for sliding against the socket of the pelvis.
These previously known prostheses have several disadvantages. First of all the capitulum, after being used for instance, for a few years, will have a tendency to wear down the socket of the pelvis so that the capitulum penetrates therethrough incapacitating the patient in the absence of further and more drastic surgery.
Secondly, the known prostheses are very heavy, being made of solid material. Thirdly, the placing of the prosthesis by operation necessitates a rather large incision to enable the prosthesis to be placed between the upper end of the thigh-bone shaft and the socket of the pelvis.
Fourthly, these known prostheses give the patient much pain both in getting used to the prosthesis when using the leg after the insertion of the prosthesis, and later on.
The invention has for its object to provide a hip-joint prosthesis whiclr eliminates the above-mentioned disadvantages. A prosthesis according to the invention can thus be placed by making only a considerably reduced incision during the operation. 'Ihe patient has less pain, and the prosthesis is made less heavy than the known prostheses. A prosthesis according to the invention is also easier to position correctly and results in better mobility for the leg after the operation.
To obtain the above-mentioned advantages it is proposed, according to the invention, to provide a hip-joint prosthesis of the above-mentioned kind, the characterizing feature of which is that an articulation is permitted between the capitulum and the spindle portion. Said capitulum is substantially dismountable, and this makes it possible to employ a smaller incision to install the prosthesis in its proper position, the spindle portion being rst inserted in position in the medullary cavity in the high-bone shaft, after which the capitulum with appurtenant articulation is installed.
According to a preferred embodiment the capitulum consists of a convenient non-corrosive artificial material, for instance, tetratluorpolyethylene, which, is known,
ice
is self-lubricating and thus will present a favorable surface to the co-operating metal element projecting from the spindle portion of the prosthesis.
The above, as well as further characterizing features and advantages of the invention, will appear more clearly from the succeeding detailed specification of an embodiment shown on the drawing of a hip-joint prosthesis according to the invention. It is, however, pointed out that the invention shown and described is meant only to illustrate the inventive idea, and that this can be modified in several ways within the scope of the invention. Especially, the articulation between the capitulum and the spindle portion can be modied in several ways known per se, without departing from the basic idea of the invention.
On the drawing, 1 is the spindle portion of the prosthesis shaped in a manner known per se to be inserted into the medullary cavity in the thigh-bone shaft after the upper articular ball of the thigh-bone is removed, and the top edge of the thigh-bone shaft is suitably formed to give good support for a contact edge 4 arranged at the upper end of the spindle. The spindle portion is made from a convenient non-corrosive metal and can be provided with lightening holes 2 as well as a guide rib 3 for better localization in the medullary cavity.
In the example shown a cylindrical trunnion 5 is arranged level with the upper end of the spindle portion. Said trunnion 5 co-operates with a cylindrical aperture 6' in the capitulum 6, which is substantially spherical. The capitulum 6 is preferably made of tetrafluorpolyethylene or other suitable artificial material which can be exposed to the body liquids, and which provides a self-lubricating effect in engagement with the trunnion 5.
To prevent the body liquids from seeping between the co-operating surfaces 5, 6', an O-ring seal 8 may be employed near the inner end of the trunnion.
The above-mentioned previously known hip-joint prostheses were provided with a capitulum, level with the spindle portion and adapted for direct movable engagement with the socket of the pelvis. The capitulum was therefore substantially arranged in the extension of the spindle portion. The capitulum according to the invention is, however, arranged so that its y axis forms an angle a with the principal x axis. Said angle is at least 45 when it relates to a trunnion as shown on the drawing, and preferably approximately 65. On account of this angle a, the movement of the leg, which is transferred to the spindle portion 1, will not be apt to move the ball-shaped capitulum 6, so that this obtains a more or less permanent engagement position with the socket of the pelvis. The trunnion connections 5, 6 will receive the movement, and the socket of the pelvis is not exposed to any wear and tear effect, so that the above-mentioned danger of penetration is eliminated.
Because the capitulum 6, according to the invention, is preferably made of self-lubricating plastic material,
` the weight of the prosthesis is also considerably reduced,
the previously known metal capitulum having had a weight between three and four times as great as that of the capitulum of articial material according to the invention.
Also, because the capitulum 6 and the spindle portion 1 are produced as two separate but unitable parts, the incision made during the operation can be much reduced in length, the surgeon first inserting the spindle portion 1 and then mounting the capitulum 6. Said insertion of the spindle portion is further facilitated by the upper end thereof being provided -with a groove 7 or the like, suitable for co-operation with convenient tools for applying the necessary insertion force.
As mentioned, the invention is not limited to the shown and described details, but can be modified in several ways without departing from the inventive idea. Thus, the shown and described trunnion can be replaced by another suitable trunnion connection, for instance, a ball-and-socket joint, if convenient with limited engagement surfaces for possible mutual movement between the parts. Locking members between the capitulum and the spindle portion are normally not necessary, these parts being kept in place by muscular exertion. If, however, a trunnion connection not expected to be kept in place by normal muscular exertion is used, suitable lock: ing members will also form a part of the prosthesis.
What is claimed is:
1. Hip-joint prosthesis comprising:
a self-lubricating Wholly plastic capitulum designed for fixed engagement in the socket of the pelvis, said capitulum having a bore therein;
a spindle portion for insertion into the medullary cavity in the thigh-bone shaft;
an integral trunnion on the upper end of said spindle rotatably inserted within the bore of said capitulum for removably mounting said capitulum on said spindle; and
a sealing means on said trunnion in contact with the wall of said capitulum bore to prevent entry of body fluids within said bore, said trunnion extending laterally away from said spindle and forming an upper included angle therewith of at least 45 whereby all movements between the leg and the hip are substantially taken up by said trunnion as it rotates within the self-lubricating bore of said capitulum.
2. Hip-joint prosthesis according to claim 1 character- References Cited UNITED STATES PATENTS 2,612,159 9/ 1952 Collison. 3,064,645 11/1962 Ficat et al. 3,320,951 5/1967 Wittebol.
FOREIGN PATENTS 1,122,634 5/ 1956 France.
OTHER REFERENCES Modified Scuderi Hip Prosthesis, in The Journal of Bone and Joint Surgery, June 1955, advertising page 42.
De Puy Hip Prosthesis, in The Journal of Bone and Joint Surgery, vol. -A, No. 6, September 1963, advertising page 61.
RICHARD A. GAUDET, Primary Examiner RONALD L. FRINKS, Assistant Examiner U.S. Cl. X.R. 128-92
US552578A 1965-05-26 1966-05-24 Hip-joint prosthesis Expired - Lifetime US3466670A (en)

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NO15824365 1965-05-26

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AT (1) AT274223B (en)
BE (1) BE681618A (en)
CH (1) CH459462A (en)
DE (1) DE1541246B1 (en)
DK (1) DK109052C (en)
GB (1) GB1071450A (en)
NL (1) NL145755B (en)
SE (1) SE315686B (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658056A (en) * 1968-04-25 1972-04-25 Arnold H Huggler Hip joint prosthesis
US3685058A (en) * 1970-10-19 1972-08-22 Raymond G Tronzo Hip prosthesis
US3723995A (en) * 1969-05-23 1973-04-03 Osteo Ag Prosthetic hip enarthrosis
US3808606A (en) * 1972-02-22 1974-05-07 R Tronzo Bone implant with porous exterior surface
US3889299A (en) * 1973-01-12 1975-06-17 Nat Res Dev Prosthetic hip joint devices
US3896505A (en) * 1970-03-31 1975-07-29 Franz Donatus Timmermans Endoprosthesis for the hipjoint
US4021865A (en) * 1974-08-29 1977-05-10 John Charnley Femoral prosthesis
US4068324A (en) * 1977-01-19 1978-01-17 Bio-Dynamics Inc. Platform supported hip prosthesis
US4266302A (en) * 1978-10-11 1981-05-12 Etablissements Tornier Femoral pin for hip prosthesis
US4287617A (en) * 1978-10-11 1981-09-08 Etablissements Tornier Femoral pin for hip prosthesis
EP0193681A2 (en) * 1984-12-20 1986-09-10 Chas F Thackray Limited Joint prostheses
US4661112A (en) * 1984-03-06 1987-04-28 Sulzer Brothers Limited Hip joint prosthesis
US5030238A (en) * 1987-03-27 1991-07-09 Gmt Gesellschaft Fur Medizinische Technik Mbh Hip prosthesis
EP0555629A1 (en) * 1992-02-11 1993-08-18 Howmedica GmbH A femoral member of a hip joint endoprosthesis
US5258035A (en) * 1992-05-29 1993-11-02 Intermedics Orthopedics, Inc. Femoral prosthesis with wedge having opposed tapers
US5330536A (en) * 1987-09-18 1994-07-19 Howmedica Gmbh Femur portion of a hip
US5755811A (en) * 1995-08-25 1998-05-26 Zimmer, Inc. Prosthetic implant with fins
US6190417B1 (en) * 1999-07-19 2001-02-20 Kyocera Corporation Femoral prosthesis device
FR2868689A1 (en) * 2004-04-09 2005-10-14 Ct Pulse France Sa Sa Femoral rod for hip prosthesis, has reliefs each of which is constituted by winglet, where each relief has apex forming acute and sharp angle for permitting winglets to penetrate in cortical bone during implantation
US8029573B2 (en) 2006-12-07 2011-10-04 Ihip Surgical, Llc Method and apparatus for total hip replacement
US8052755B2 (en) * 2008-05-09 2011-11-08 Remi Sciences, Inc. Ulnar head prosthesis system
US20120239160A1 (en) * 2009-05-07 2012-09-20 Smith & Nephew, Inc. Modular trial heads for a prosthetic
US20130204390A1 (en) * 2006-12-07 2013-08-08 Ihip Surgical, Llc Method and apparatus for attachment in a modular hip replacement or fracture fixation device
US8579985B2 (en) 2006-12-07 2013-11-12 Ihip Surgical, Llc Method and apparatus for hip replacement
US20150342745A1 (en) * 2014-06-02 2015-12-03 Stryker European Holdings I, Llc Metacarpal rod anchor for a trapezometacarpal prosthesis
US9763791B2 (en) 2013-02-06 2017-09-19 Howmedica Osteonics Corp. Femoral prosthesis head

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FR2096895B1 (en) * 1970-07-10 1973-01-12 Electro Ceramique Cie Gl
US3848272A (en) * 1972-01-13 1974-11-19 United States Surgical Corp Artificial hip joint
USRE28895E (en) * 1972-01-13 1976-07-13 United States Surgical Corporation Artificial hip joint
DE2627569C2 (en) * 1976-06-19 1982-03-11 Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim Thigh part of a hip joint prosthesis
CH612586A5 (en) * 1977-05-23 1979-08-15 Sulzer Ag
CH642839A5 (en) * 1980-01-14 1984-05-15 Sulzer Ag LEAF-LIKE SHAFT FOR A JOINT REPLACEMENT.
DE3433859A1 (en) * 1984-09-14 1986-03-27 Waldemar Link (Gmbh & Co), 2000 Hamburg JOINT DOPROTHESIS AND INSTRUMENT TO OR RECHARGE THE SAME
DE9110040U1 (en) * 1991-08-14 1991-10-17 Aesculap AG, 7200 Tuttlingen Joint endoprosthesis
ITUB20159789A1 (en) * 2015-12-30 2017-06-30 Tecres Spa SOUL FOR SPACE

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FR1122634A (en) * 1955-02-25 1956-09-11 Improvements to joint prostheses
US3064645A (en) * 1961-01-23 1962-11-20 Raymond P Ficat Damped prosthesis forming a substitute for the coxo-femoral articulation
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FR1122634A (en) * 1955-02-25 1956-09-11 Improvements to joint prostheses
US3064645A (en) * 1961-01-23 1962-11-20 Raymond P Ficat Damped prosthesis forming a substitute for the coxo-femoral articulation
US3320951A (en) * 1964-04-21 1967-05-23 Wittebol Paul Intramedullary prostheses

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658056A (en) * 1968-04-25 1972-04-25 Arnold H Huggler Hip joint prosthesis
US3723995A (en) * 1969-05-23 1973-04-03 Osteo Ag Prosthetic hip enarthrosis
US3896505A (en) * 1970-03-31 1975-07-29 Franz Donatus Timmermans Endoprosthesis for the hipjoint
US3685058A (en) * 1970-10-19 1972-08-22 Raymond G Tronzo Hip prosthesis
US3808606A (en) * 1972-02-22 1974-05-07 R Tronzo Bone implant with porous exterior surface
US3889299A (en) * 1973-01-12 1975-06-17 Nat Res Dev Prosthetic hip joint devices
US4021865A (en) * 1974-08-29 1977-05-10 John Charnley Femoral prosthesis
US4068324A (en) * 1977-01-19 1978-01-17 Bio-Dynamics Inc. Platform supported hip prosthesis
US4266302A (en) * 1978-10-11 1981-05-12 Etablissements Tornier Femoral pin for hip prosthesis
US4287617A (en) * 1978-10-11 1981-09-08 Etablissements Tornier Femoral pin for hip prosthesis
US4661112A (en) * 1984-03-06 1987-04-28 Sulzer Brothers Limited Hip joint prosthesis
EP0193681A2 (en) * 1984-12-20 1986-09-10 Chas F Thackray Limited Joint prostheses
EP0193681A3 (en) * 1984-12-20 1987-07-29 Chas F Thackray Limited Joint prostheses
US5030238A (en) * 1987-03-27 1991-07-09 Gmt Gesellschaft Fur Medizinische Technik Mbh Hip prosthesis
US5330536A (en) * 1987-09-18 1994-07-19 Howmedica Gmbh Femur portion of a hip
EP0555629A1 (en) * 1992-02-11 1993-08-18 Howmedica GmbH A femoral member of a hip joint endoprosthesis
US5258035A (en) * 1992-05-29 1993-11-02 Intermedics Orthopedics, Inc. Femoral prosthesis with wedge having opposed tapers
US5480452A (en) * 1992-05-29 1996-01-02 Intermedics Orthopedics, Inc. Femoral prosthesis with wedge having opposed tapers
US5755811A (en) * 1995-08-25 1998-05-26 Zimmer, Inc. Prosthetic implant with fins
US6190417B1 (en) * 1999-07-19 2001-02-20 Kyocera Corporation Femoral prosthesis device
FR2868689A1 (en) * 2004-04-09 2005-10-14 Ct Pulse France Sa Sa Femoral rod for hip prosthesis, has reliefs each of which is constituted by winglet, where each relief has apex forming acute and sharp angle for permitting winglets to penetrate in cortical bone during implantation
US8211183B2 (en) 2006-12-07 2012-07-03 Ihip Surgical, Llc Methods and systems for total hip replacement
US8029573B2 (en) 2006-12-07 2011-10-04 Ihip Surgical, Llc Method and apparatus for total hip replacement
US20130204390A1 (en) * 2006-12-07 2013-08-08 Ihip Surgical, Llc Method and apparatus for attachment in a modular hip replacement or fracture fixation device
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
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
US8052755B2 (en) * 2008-05-09 2011-11-08 Remi Sciences, Inc. Ulnar head prosthesis system
US20120239160A1 (en) * 2009-05-07 2012-09-20 Smith & Nephew, Inc. Modular trial heads for a prosthetic
US8840676B2 (en) * 2009-05-07 2014-09-23 Smith & Nephew, Inc. Modular trial heads for a prosthetic
US9763791B2 (en) 2013-02-06 2017-09-19 Howmedica Osteonics Corp. Femoral prosthesis head
US20150342745A1 (en) * 2014-06-02 2015-12-03 Stryker European Holdings I, Llc Metacarpal rod anchor for a trapezometacarpal prosthesis
US9597192B2 (en) * 2014-06-02 2017-03-21 Stryker European Holdings I, Llc Metacarpal rod anchor for a trapezometacarpal prosthesis

Also Published As

Publication number Publication date
DK109052C (en) 1968-03-11
BE681618A (en) 1966-10-31
DE1541246B1 (en) 1970-10-29
CH459462A (en) 1968-07-15
NL6607267A (en) 1966-11-28
GB1071450A (en) 1967-06-07
AT274223B (en) 1969-09-10
NL145755B (en) 1975-05-15
SE315686B (en) 1969-10-06

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