Patent US3874003A successfully refreshed from Google Patents.
US3874003A
Expired / Lapsed
US
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Artificial hip joint
Assignee: Oscobal AG
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Filing: 1973-04-04
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Granted: 1975-04-01
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Expires: 1993-04-04
Abstract
Abstract An artificial hip joint, wherein an artificial femur head is fixed in the femur and a socket having two pins is secured in the pelvis. The apparatus includes special tools for fixing the socket in the pelvis in a proper position particularly determined by bores taking up said pins, and the ball head may be located in different positions on a pin of the femur shank and is secured from unintentional twisting once it is mounted thereon in its final position.
Inventors
- 👤 Heinz Moser
- 👤 Kurt Karpf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4603; A61F2/4609; A61B; A61B17/00; A61B17/16; A61B17/1659; A61B17/1662; A61B17/1664; A61B17/1668; A61F2/32; B; B62; B62D; B62D49/00; B62D49/005; B62D49/007; A61B17/17; A61B17/1739; A61B17/1742; A61B17/175; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30159; A61F2002/30179; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30332; A61F2002/30535; A61F2002/30537; A61F2002/30538; A61F2002/3054; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30878; A61F2002/30879; A61F2002/30891; A61F2002/30892; A61F2002/30906; A61F2/34; A61F2002/3412; A61F2002/3417; A61F2002/3429; A61F2/36; A61F2/3609; A61F2002/3625; A61F2002/3631; A61F2002/365; A61F2/40; A61F2/4014; A61F2002/4037; A61F2002/4619; A61F2002/4631; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0058; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00029
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
142 words
An artificial hip joint, comprising an artificial femur head having a femur shank and ball head mounted thereon, and a socket, said femur shank having a support pin projecting from an upper end thereof and a collar about the base of said pin, said ball head having a bore which is disposed on said pin of the femur shank and is secured from unintentional twisting by pegs projecting axially at a face of the ball head for cooperative engagement with depressions in said collar of the femur shank, said bore of the ball head having an axis offset from a diameter line of the ball head, whereby said ball head may be disposed on said pin and fixed by said pegs and depressions in various relative angular positions for selection of various positions of said ball head relatively to said femur shank.
Claim 2
Dependent Claim
142 words
An artificial hip joint, comprising an artificial femur head having a femur shank and ball head mounted thereon, and a socket, said femur shank having a support pin projecting from an upper end thereof and a collar about the base of said pin, said ball head having a bore which is disposed on said pin of the femur shank and is secured from unintentional twisting by pegs projecting axially at a face of the ball head for cooperative engagement with depressions in said collar of the femur shank, said bore of the ball head having an axis offset from a diameter line of the ball head, whereby said ball head may be disposed on said pin and fixed by said pegs and depressions in various relative angular positions for selection of various positions of said ball head relatively to said femur shank.
Claim 3
Dependent Claim
24 words
An artificial hip joint as claimed in claim 1, in which the ball head has a neck extension on which the pegs are disposed.
Claim 4
Dependent Claim
31 words
An artificial hip joint as claimed in claim 1, in which the ball head has a bore, the axis of which is offset between 5* and 15* from a diameter line.
Claim 5
Dependent Claim
21 words
An artificial hip joint as claimed in claim 1, in which the ball head has four axially projecting pegs arranged cross-wise.
Claim 6
Dependent Claim
21 words
An artificial hip joint as claimed in claim 1, in which the artificial femur shank has at least approximately smooth surfaces.
Claim 7
Dependent Claim
16 words
An artificial hip joint as claimed in claim 1, in which the shank has annular teeth.
Claim 8
Dependent Claim
20 words
An artificial hip joint as claimed in claim 1, in which the collar has a bore in its rear portion.
Claim 9
Dependent Claim
30 words
An artificial hip joint as claimed in claim 1, in which the collar has four depressions arranged cross-wise at whose point of intersection said pin is disposed and is tapered.
Claim 10
Dependent Claim
27 words
An artificial hip joint as claimed in claim 1, in which the axis of the shaft and the axis of the pin subtend an angle of 126*.
Claim 11
Dependent Claim
19 words
An artificial hip joint as claimed in claim 1, in which the neck of the ball head is symmetrical.
Claim 12
Dependent Claim
18 words
An artificial hip joint as claimed in claim 1, in which the ball head has an asymmetrical neck.
Claim 13
Dependent Claim
29 words
An artificial hip joint as claimed in claim 1, in which the femur shank is curved and the rear part of its upper end is provided with a reinforcement.
Claim 14
Dependent Claim
18 words
An artificial hip joint as claimed in claim 1, in which the ball head consists of plastics material.
Claim 15
Dependent Claim
21 words
An artificial hip joint as claimed in claim 1, in which the shank consists of Co - Cr - Mo alloy.
Claim 16
Dependent Claim
16 words
An artificial hip joint as claimed in claim 1, in which the femur shank is sand-blasted.
Claim 17
Dependent Claim
16 words
An artificial hip joint as claimed in claim 1, in which the socket has two pins.
Claim 18
Dependent Claim
23 words
An artificial hip joint as claimed in claim 1, in which the socket is provided on its outer surface with radially extending ribs.
Claim 19
Dependent Claim
24 words
An artificial hip joint as claimed in claim 1, in which the socket is at least partially provided with a rim on its circumference.
Claim 20
Dependent Claim
19 words
An artificial hip joint as claimed in claim 1, in which the socket is chamfered on the medial side.
Claim 21
Dependent Claim
25 words
An artificial hip joint as claimed in claim 1, in which the inner radius of the socket corresponds approximately to that of the ball head.
Claim 22
Dependent Claim
18 words
An artificial hip joint as claimed in claim 1, in which the socket consists of a Co-Cr-Mo alloy.
References Cited (Backward Citations)
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US3320951A
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US3584318A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |