US3501777A - Leg prostheses for thigh disarticulations - Google Patents

Leg prostheses for thigh disarticulations Download PDF

Info

Publication number
US3501777A
US3501777A US653094A US3501777DA US3501777A US 3501777 A US3501777 A US 3501777A US 653094 A US653094 A US 653094A US 3501777D A US3501777D A US 3501777DA US 3501777 A US3501777 A US 3501777A
Authority
US
United States
Prior art keywords
thigh
corset
bracket
fork
prosthesis
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
US653094A
Inventor
Gavrill Artemovich Degtyarev
Nikolai Ivanovich Klimov
Vyacheslav Stepanovich Leonov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3501777A publication Critical patent/US3501777A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/604—Joints for artificial legs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/605—Hip joints

Definitions

  • a leg prosthesis for thigh disarticulations near the hip having a half-corset provided with a bracket mounted near the underside which pivotally supports thigh, shin and foot members covered with an elastic material.
  • An automatic lock is provided between the bracket and thigh member to support the body in the vertical position and is releasable for forward pivoting during sitting.
  • the leg features an improved hinged link structure forming the thigh member comprising, an upper fork-like platform hinged to the bracket and hingedly supporting two parallel upright links having their lower ends hinged to a shaped link located at the knee area.
  • An inclined link is hingedly supported between the platform and shaped links, thereby forming a hinged link structure capable of supporting great loads during walking and standing.
  • the present invention relates to supporting and moving appliances which may replace the lost limbs of a human, and more particularly to leg prostheses after thigh disarticulations near the hip.
  • leg prosthetic appliances after thigh disarticulation comprising a half-corset complete with a bracket and an automatic lock and thigh, shin and foot members hinged in succession and covered with an elastic material, the bracket being located just under the half-corset .and the joint of the thigh and shin being provided with a lock.
  • a disadvantage of such prostheses is their poor functioning and giving way under persons wearing them due to locks in the thigh-to-shin joints (knee joints), the possibility of breaking thereof at the junctions between brackets and half-corsets (in the coxofemoral joints) due to large torques, the impossibility of providing the right setting of the persons body while sitting because of brackets being located just under the half-corsets.
  • An object of the present invention is to eliminate the above-said disadvantages.
  • the principal object of the invention is to provide an appliance after thigh disarticulation, which provides proper function, and does not give way while also being durable and enabling the right setting of the persons body while sitting.
  • a leg prosthesis after thigh disarticulation comprising a half-corset complete with a bracket and automatic lock, a thigh member, a shin member and a foot member, in which, according to the invenion, the thigh member is made as a hinged four-link member whose one link in the prosthesis vertical position serves as a platform located in the upper portion of the thigh member under the half-corset, while the second and third links are made as two vertical, parallel up rights and an upright inclined towards them, respectively, whereas the fourth link is essentially a shaped piece rigidly attached to the thigh member.
  • the platform is made as a fork member which is provided with a shock absorber.
  • the uprights of the second and third links are made hollow.
  • the automatic lock is located on the outer side of one of the fork arms with a clearance between its working end and the projection of the half-corset bracket.
  • FIG. 1 is a longitudinal section in the sagittal plane through the prosthesis of the invention
  • FIG. 2 is the front view of the prosthesis of the invention, partly broken away in section;
  • FIG. 3 is a longitudinal section in the sagittal plane through the prosthesis of the invention (sitting position);
  • FIG. 4 is a perspective view of the fork according to the invention.
  • FIG. 5 shows a shaped member according to the invention.
  • the leg prosthesis after thigh disarticulation consists of a half-corset (FIG. 1), a bracket 2, an automatic lock 3, a thigh member comprising a platform 4, tWo vertical parallel uprights 5, an inclined upright 6, and a shaped member 7; a shin member 8, a foot member 9 and a shock absorber 10.
  • the thigh, shin and foot members are covered with an elastic plastic 11, e.g., urethane foam (FIG. 2).
  • an elastic plastic 11 e.g., urethane foam (FIG. 2).
  • the half-corset 1 is made of a cloth impregnated with polyamide varnish.
  • the bracket 2 is provided with a plate 12 rigidly attached to the half-corset 1.
  • the platform 4 (FIGS. 1 and 4) is made as a fork 13 (FIG. 4), and is located in the upper portion of the thigh member under the half-corset 1 (FIG. 1).
  • the ends of parallel arms 14 of the fork 13 (FIG. 4) are hinged with the bracket 2 (FIG. 1) and with the upper end of the hollow inclined upright 6.
  • the plate 15 (FIG. 4) perpendicular to and extending between the two parallel arms 14 of the fork 13 is hinged with the two parallel hollow uprights 5 (FIG. 1).
  • Attached to the transverse plate 15 of the fork 13 (FIG. 4) is a shock absorber 16 receiving the load of the half-corset 1 (FIG. 1).
  • the shaped member 7 (FIGS.
  • the foot member 9 is flexibly attached to the shin 8 through the shock absorber 10.
  • the proposed prosthesis may replace the lost lower extremity and reconstructs the principal functions of walking; it also makes it possible for the person to sit properly.
  • the presence of the four-link thigh member ensures the acceptance of a great load when walking and standing .(FIGS. 1 and 2), and eliminates the danger of bending in the prosthesis knee joint, while, when sitting .(FIG. 3), it permits to place the persons body in a comfortable position as the platform 4 and the two parallel hollow uprights 5 may displace towards the hollow upright 6, thereby forming a space under the half-corset 1 and the upper portion of the thigh member.
  • the hinged joint between the bracket 2 and the fork 13 is provided with an automatic lock 3 mounted on the outer side of one of the arms 14 of the fork 13 in such a manner that its end operates against the projection of the bracket 2, while to improve the function on transferring the prosthesis the instant the toe of the foot 9 is lifted from the supporting surface, provision is made for a functional clearance, e.g., 2 to 3 mm. between the working end of the lock 3 and the projection of the bracket 2.
  • the tubular shin member 8 is provided with a spring 17.
  • the shock absorber improves the adaptation of the sole portion of the foot 9 to the supporting surface as well as softening impacts in the initial period of walking.
  • a leg prosthesis after thigh disarticulation comprising: a half-corset with a bracket and an automatic lock; a thigh member which is essentially constituted as a platform in the vertical position of the prosthesis, and which is located in the upper portion of the thigh member under said half-corset, said platform being hinge-jointed at one end thereof with said bracket, two vertical parallel uprights, having upper ends hinge-jointed with the other end of said platform, an upright member inclined towards said two vertical parallel uprights and having an upper end hinge-jointed with said one end of said platform, a shaped member hinge-jointed with the lower ends of said parallel uprights, said shaped member being hinge-jointed with the lower ends of said inclined upright; a shin member rigidly attached to said shaped member; and a foot member having a flexible attachment to said shin.
  • a leg prosthesis after thigh disarticulation comprising: a half-corset with a bracket having a projection and an automatic lock; a thigh member having a fork member for supporting the body in the vertical position of the prosthesis, said fork member having two spaced arms connected by a transverse plate, said plate being provided with a shock absorber for contacting the underside of said half-corset, said fork member being located in the upper portion of the thigh member under said half-corset, said fork member being hinge-jointed at one end thereof with said bracket, two vertical parallel hollow uprights having upper ends hinge-jointed with the other end of said fork member, a hollow upright member inclined towards said two vertical parallel hollow uprights, and having an upper end hinge-jointed with said fork member, a shaped member hinge-jointed with the lower ends of said parallel hollow uprights, said shaped member being hinge-jointed with the lower end of said inclined hollow upright member; a shin member rigidly attached to said shaped member; and

Description

March 24, 1970 ca. A. DEGTYAREV ETAL 3,501,777
LEG PROSTHESES FOR THIGH DISARTIGULATIONS 2 Sheets-Sheet 1 Filed July 13, 1967 March 24, 1970 e. A. DEGTYAREV ET AL 3,501,777
LEG PROSTHESES FOR THIGH DISARTICULATIONS Filed July 13, 1967 2 Sheets-Sheet 2 United States Patent 3,501,777 LEG PROSTHESES FOR THIGH DISARTICULATIONS Gavrill Artemovich Degtyarev, Ul. Garibaldi 12, kv. 99; Nikolai Ivanovich Klimov, Ul. Vavilova 17, kv. 114; and Vyacheslav Stepanovich Leonov, Ul. Kedrova 16, kv. 36, all of Moscow, U.S.S.R.
Filed July 13, 1967, Ser. No. 653,094 Int. Cl. A61f 1/08, 1/04 U.S. Cl. 3-15 4 Claims ABSTRACT OF THE DISCLOSURE A leg prosthesis for thigh disarticulations near the hip having a half-corset provided with a bracket mounted near the underside which pivotally supports thigh, shin and foot members covered with an elastic material. An automatic lock is provided between the bracket and thigh member to support the body in the vertical position and is releasable for forward pivoting during sitting. The leg features an improved hinged link structure forming the thigh member comprising, an upper fork-like platform hinged to the bracket and hingedly supporting two parallel upright links having their lower ends hinged to a shaped link located at the knee area. An inclined link is hingedly supported between the platform and shaped links, thereby forming a hinged link structure capable of supporting great loads during walking and standing.
The present invention relates to supporting and moving appliances which may replace the lost limbs of a human, and more particularly to leg prostheses after thigh disarticulations near the hip.
Known in the prior art are leg prosthetic appliances after thigh disarticulation, comprising a half-corset complete with a bracket and an automatic lock and thigh, shin and foot members hinged in succession and covered with an elastic material, the bracket being located just under the half-corset .and the joint of the thigh and shin being provided with a lock.
A disadvantage of such prostheses is their poor functioning and giving way under persons wearing them due to locks in the thigh-to-shin joints (knee joints), the possibility of breaking thereof at the junctions between brackets and half-corsets (in the coxofemoral joints) due to large torques, the impossibility of providing the right setting of the persons body while sitting because of brackets being located just under the half-corsets.
An object of the present invention is to eliminate the above-said disadvantages.
The principal object of the invention is to provide an appliance after thigh disarticulation, which provides proper function, and does not give way while also being durable and enabling the right setting of the persons body while sitting.
To achieve this object there is provided a leg prosthesis after thigh disarticulation, comprising a half-corset complete with a bracket and automatic lock, a thigh member, a shin member and a foot member, in which, according to the invenion, the thigh member is made as a hinged four-link member whose one link in the prosthesis vertical position serves as a platform located in the upper portion of the thigh member under the half-corset, while the second and third links are made as two vertical, parallel up rights and an upright inclined towards them, respectively, whereas the fourth link is essentially a shaped piece rigidly attached to the thigh member.
In addition, the platform is made as a fork member which is provided with a shock absorber.
Besides, the uprights of the second and third links are made hollow.
3,501,777 Patented Mar. 24, 1970 The automatic lock, according to the invention, is located on the outer side of one of the fork arms with a clearance between its working end and the projection of the half-corset bracket.
Other objects and advantages of the invention will become more fully apparent from the following description thereof and the attached drawings, in which:
FIG. 1 is a longitudinal section in the sagittal plane through the prosthesis of the invention;
FIG. 2 is the front view of the prosthesis of the invention, partly broken away in section;
FIG. 3 is a longitudinal section in the sagittal plane through the prosthesis of the invention (sitting position);
FIG. 4 is a perspective view of the fork according to the invention; and
FIG. 5 shows a shaped member according to the invention.
The leg prosthesis after thigh disarticulation consists of a half-corset (FIG. 1), a bracket 2, an automatic lock 3, a thigh member comprising a platform 4, tWo vertical parallel uprights 5, an inclined upright 6, and a shaped member 7; a shin member 8, a foot member 9 and a shock absorber 10.
The thigh, shin and foot members are covered with an elastic plastic 11, e.g., urethane foam (FIG. 2).
The half-corset 1 is made of a cloth impregnated with polyamide varnish.
The bracket 2 is provided with a plate 12 rigidly attached to the half-corset 1.
The platform 4 (FIGS. 1 and 4) is made as a fork 13 (FIG. 4), and is located in the upper portion of the thigh member under the half-corset 1 (FIG. 1). The ends of parallel arms 14 of the fork 13 (FIG. 4) are hinged with the bracket 2 (FIG. 1) and with the upper end of the hollow inclined upright 6. The plate 15 (FIG. 4) perpendicular to and extending between the two parallel arms 14 of the fork 13 is hinged with the two parallel hollow uprights 5 (FIG. 1). Attached to the transverse plate 15 of the fork 13 (FIG. 4) is a shock absorber 16 receiving the load of the half-corset 1 (FIG. 1). The shaped member 7 (FIGS. 1 and 5) is rigidly attached to the tubular shin member 8 at its lower portion, while with its upper portion it is hinge-jointed with the two parallel vertical hollow uprights 5, and with its middle portion it is hingejointed with the lower end of the inclined hollow upright 6.
The foot member 9 is flexibly attached to the shin 8 through the shock absorber 10.
The proposed prosthesis may replace the lost lower extremity and reconstructs the principal functions of walking; it also makes it possible for the person to sit properly.
The presence of the four-link thigh member ensures the acceptance of a great load when walking and standing .(FIGS. 1 and 2), and eliminates the danger of bending in the prosthesis knee joint, while, when sitting .(FIG. 3), it permits to place the persons body in a comfortable position as the platform 4 and the two parallel hollow uprights 5 may displace towards the hollow upright 6, thereby forming a space under the half-corset 1 and the upper portion of the thigh member.
With a view to eliminating the spontaneous bending of the prosthesis when walking, the hinged joint between the bracket 2 and the fork 13 is provided with an automatic lock 3 mounted on the outer side of one of the arms 14 of the fork 13 in such a manner that its end operates against the projection of the bracket 2, while to improve the function on transferring the prosthesis the instant the toe of the foot 9 is lifted from the supporting surface, provision is made for a functional clearance, e.g., 2 to 3 mm. between the working end of the lock 3 and the projection of the bracket 2.
For the automatic transferring of the shin member 8 forwards, the tubular shin member 8 is provided with a spring 17.
The shock absorber improves the adaptation of the sole portion of the foot 9 to the supporting surface as well as softening impacts in the initial period of walking.
What is claimed is:
1. A leg prosthesis after thigh disarticulation, comprising: a half-corset with a bracket and an automatic lock; a thigh member which is essentially constituted as a platform in the vertical position of the prosthesis, and which is located in the upper portion of the thigh member under said half-corset, said platform being hinge-jointed at one end thereof with said bracket, two vertical parallel uprights, having upper ends hinge-jointed with the other end of said platform, an upright member inclined towards said two vertical parallel uprights and having an upper end hinge-jointed with said one end of said platform, a shaped member hinge-jointed with the lower ends of said parallel uprights, said shaped member being hinge-jointed with the lower ends of said inclined upright; a shin member rigidly attached to said shaped member; and a foot member having a flexible attachment to said shin.
2. A prosthesis as claimed in claim 1, in which the platform is constituted as a fork member having two spaced arms and a plate extending therebetween, said plate being provided with a shock absorber for contacting the underside of said half-corset.
3. A prosthesis as claimed in claim 1, in which the two vertical parallel uprights are hollow; the upright inclined member also being hollow.
4. A leg prosthesis after thigh disarticulation, comprising: a half-corset with a bracket having a projection and an automatic lock; a thigh member having a fork member for supporting the body in the vertical position of the prosthesis, said fork member having two spaced arms connected by a transverse plate, said plate being provided with a shock absorber for contacting the underside of said half-corset, said fork member being located in the upper portion of the thigh member under said half-corset, said fork member being hinge-jointed at one end thereof with said bracket, two vertical parallel hollow uprights having upper ends hinge-jointed with the other end of said fork member, a hollow upright member inclined towards said two vertical parallel hollow uprights, and having an upper end hinge-jointed with said fork member, a shaped member hinge-jointed with the lower ends of said parallel hollow uprights, said shaped member being hinge-jointed with the lower end of said inclined hollow upright member; a shin member rigidly attached to said shaped member; and a foot member having a flexible attachment to said shin member; said automatic lock being disposed on the outer side of one of the arms of said fork with a clearance between its working end and the projection of the bracket of said half-corset.
References Cited UNITED STATES PATENTS 773,199 10/1904 Cunningham 3-l5 1,299,980 4/1919 Marcinko 3-15 FOREIGN PATENTS 228,940 6/ 1960 Australia. 374,580 4/ 1923 Germany. 147,736 11/1962 U.S.S.R. 174,322 1/1966 U.S.S.R.
RICHARD A. GAUDET, Primary Examiner R. L. FRINKS, Assistant Examiner US. Cl. X.R. 37, 29, 33
US653094A 1967-07-13 1967-07-13 Leg prostheses for thigh disarticulations Expired - Lifetime US3501777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65309467A 1967-07-13 1967-07-13

Publications (1)

Publication Number Publication Date
US3501777A true US3501777A (en) 1970-03-24

Family

ID=24619481

Family Applications (1)

Application Number Title Priority Date Filing Date
US653094A Expired - Lifetime US3501777A (en) 1967-07-13 1967-07-13 Leg prostheses for thigh disarticulations

Country Status (1)

Country Link
US (1) US3501777A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663967A (en) * 1968-09-06 1972-05-23 Clarence W Vermillion Joint movement limiting arrangement for prosthetic legs
US4187619A (en) * 1978-03-06 1980-02-12 Gibbs Don W Strap fastening means for a sock and shoe combination
US4215441A (en) * 1979-02-12 1980-08-05 Thomas Haslam Prosthetic hip
US4619661A (en) * 1982-03-05 1986-10-28 Robert Axelsson Prosthesis foot
US5593455A (en) * 1994-05-27 1997-01-14 Phillips; Van L. Plug mounted prosthesis
US6131436A (en) * 1999-03-01 2000-10-17 Lear Corporation Method and system for wear testing a seat by simulating human seating activity and robotic human body simulator for use therein
US6153139A (en) * 1998-09-14 2000-11-28 Marquette; Stuart Prosthesis covering apparatus
US6206703B1 (en) * 1999-03-01 2001-03-27 Lear Corporation Biofidelic human seating surrogate apparatus
US6220089B1 (en) 1999-03-01 2001-04-24 Lear Corporation Vibration dummy apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU174322A1 (en) * Н. И. Климов, Г. А. Дегт рев , В. С. Леонов Prosthesis of the lower limb
US773199A (en) * 1904-05-14 1904-10-25 James R Cunningham Artificial limb.
US1299980A (en) * 1919-01-07 1919-04-08 Andrew Marcinko Artificial limb.
DE374580C (en) * 1922-07-04 1923-04-26 Otto Schlegelmilch Artificial leg to replace the natural leg disarticulated in the hip
SU147736A1 (en) * 1960-01-05 1961-11-30 Н.И. Климов Prosthetic leg

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU174322A1 (en) * Н. И. Климов, Г. А. Дегт рев , В. С. Леонов Prosthesis of the lower limb
US773199A (en) * 1904-05-14 1904-10-25 James R Cunningham Artificial limb.
US1299980A (en) * 1919-01-07 1919-04-08 Andrew Marcinko Artificial limb.
DE374580C (en) * 1922-07-04 1923-04-26 Otto Schlegelmilch Artificial leg to replace the natural leg disarticulated in the hip
SU147736A1 (en) * 1960-01-05 1961-11-30 Н.И. Климов Prosthetic leg

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663967A (en) * 1968-09-06 1972-05-23 Clarence W Vermillion Joint movement limiting arrangement for prosthetic legs
US4187619A (en) * 1978-03-06 1980-02-12 Gibbs Don W Strap fastening means for a sock and shoe combination
US4215441A (en) * 1979-02-12 1980-08-05 Thomas Haslam Prosthetic hip
US4619661A (en) * 1982-03-05 1986-10-28 Robert Axelsson Prosthesis foot
US5593455A (en) * 1994-05-27 1997-01-14 Phillips; Van L. Plug mounted prosthesis
US5888238A (en) * 1994-05-27 1999-03-30 Phillips; Van L. Plug mounted prosthesis
US6153139A (en) * 1998-09-14 2000-11-28 Marquette; Stuart Prosthesis covering apparatus
US6131436A (en) * 1999-03-01 2000-10-17 Lear Corporation Method and system for wear testing a seat by simulating human seating activity and robotic human body simulator for use therein
US6206703B1 (en) * 1999-03-01 2001-03-27 Lear Corporation Biofidelic human seating surrogate apparatus
US6220089B1 (en) 1999-03-01 2001-04-24 Lear Corporation Vibration dummy apparatus

Similar Documents

Publication Publication Date Title
US5314499A (en) Artificial limb including a shin, ankle and foot
JP4226333B2 (en) Device for parts that pivotably connect orthopedic devices
US5030239A (en) Biomechanical ankle
US6482236B2 (en) Prosthetic ankle joint mechanism
JP3128237B2 (en) Artificial toggle joint
US4603690A (en) Sliding pivot knee joint
Krebs et al. Prosthetic management of children with limb deficiencies
EP2879623A1 (en) Prosthetic ankle module
US4578083A (en) Artificial leg
US3501777A (en) Leg prostheses for thigh disarticulations
US4442554A (en) Biomechanical ankle device
JPH05146A (en) Rotatably movable joined body
US6808540B1 (en) Device at a knee joint prosthesis
US4488320A (en) Prosthetic hip
KR101190416B1 (en) Artificial foot
US597465A (en) Artificial leg
US1316347A (en) Planoqraph co
US6322594B1 (en) Hip joint for an artificial leg
US2446042A (en) Prosthetic foot for injured or short legs
CN212662036U (en) Four-bar linkage ankle joint
US2590782A (en) Artificial leg
DE924473C (en) Walking support with ankle for leg amputees
RU2075988C1 (en) Walking facilitating apparatus
RU1777855C (en) Hip prosthesis
SU1138151A1 (en) Hip prosthesis