Patent USRE28895E successfully refreshed from Google Patents.
USRE28895E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial hip joint
Assignee: United States Surgical Corp
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Filing: 1975-05-19
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Granted: 1976-07-13
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Expires: 1995-05-19
Abstract
Abstract An artificial hip joint having an acetabulum prosthesis for the cotyloid cavity defining a socket and including a head having a plurality of blades extending outwardly away from the socket for engaging the prepared wall of the cotyloid cavity and having at least one insert removably connected to the head to form the socket. A prosthesis of the head of the femur is movably interconnected with the acetabulum prosthesis and includes a pin to be driven into the bone-marrow channel of the femur, a curved neck integral with the pin, and a hip ball positioned on the neck, movably located within the socket and in movable contact with the removable insert. Means are provided in operative relationship with the femur head prosthesis for preventing rotation of the femur head prosthesis with respect to the femur.
Inventors
- 👤 Douglas G. Noiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30721; A61F2/30728; A61F2/30739; A61F2/32; A61F2/36; A61F2/3662; A61F2/367; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/30476; A61F2002/30495; A61F2/3094; A61F2002/30975; A61F2002/3233; A61F2002/3241; A61F2/34; A61F2002/3401
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
188 words
An artificial hip joint, comprising: an acetabulum prosthesis of the cotyloid cavity defining an aperture having screw threads on the inner surface thereof and a plurality of blades extending outwardly away from said aperture for engaging the prepared wall of the cotyloid cavity; at least one insert having an outer threaded surface and an inner bearing surface inserted into said aperture and threadedly connected by means of said threads to said acetabulum prosthesis to form a socket, the outer surface of said at least one insert engaging and being supported by the inner surface of said aperture; and a prosthesis of the head of the femur movably interconnected with said acetabulum prosthesis and including a pin to be driven into the bone-marrow channel of the femur, a .[.curved.]. neck integral with the pin, and a hip ball positioned on the neck, movably located within said socket and in movable contact with said insert, said socket enveloping more than one-half of the hip ball to prevent withdrawal of the hip ball from the socket, said artificial hip joint composed of surgical grade materials suitable for implantation into the body.
Claim 2
Dependent Claim
188 words
An artificial hip joint, comprising: an acetabulum prosthesis of the cotyloid cavity defining an aperture having screw threads on the inner surface thereof and a plurality of blades extending outwardly away from said aperture for engaging the prepared wall of the cotyloid cavity; at least one insert having an outer threaded surface and an inner bearing surface inserted into said aperture and threadedly connected by means of said threads to said acetabulum prosthesis to form a socket, the outer surface of said at least one insert engaging and being supported by the inner surface of said aperture; and a prosthesis of the head of the femur movably interconnected with said acetabulum prosthesis and including a pin to be driven into the bone-marrow channel of the femur, a .[.curved.]. neck integral with the pin, and a hip ball positioned on the neck, movably located within said socket and in movable contact with said insert, said socket enveloping more than one-half of the hip ball to prevent withdrawal of the hip ball from the socket, said artificial hip joint composed of surgical grade materials suitable for implantation into the body.
Claim 3
Dependent Claim
15 words
An artificial hip joint as in claim 1 wherein said insert is comprised of plastic.
Claim 4
Dependent Claim
17 words
An artificial hip joint as in claim 1 wherein said acetabulum prosthesis includes two of said inserts.
Claim 5
Dependent Claim
19 words
An artificial hip joint as in claim 1 wherein said insert is comprised of ultra high molecular weight polyethylene.
Claim 6
Dependent Claim
20 words
An artificial hip joint as in claim 4 wherein said hip ball is comprised of titanium or a titanium alloy.
Claim 7
Dependent Claim
18 words
An artificial hip joint as in claim 1 wherein said insert is comprised of cobalt alloy ASTM F75-67.
Claim 8
Dependent Claim
17 words
An artificial hip joint as in claim 1 wherein said hip ball is comprised of cobalt alloy.
Claim 9
Dependent Claim
40 words
An artificial hip joint as in claim 1 wherein all of said acetabulum prosthesis but the insert and all of the prosthesis of the head of the femur but the hip ball are comprised of titanium or a titanium alloy.
Claim 10
Dependent Claim
15 words
An artificial hip joint as in claim 8 wherein the titanium alloy is ASTM F136-70.
Claim 11
Dependent Claim
14 words
An artificial hip joint as in claim 8 wherein the titanium is ASTM F67-66.
Claim 12
Dependent Claim
25 words
An artificial hip joint as in claim 1 wherein said insert includes an integral threaded ring portion for threadedly engaging grooves in said acetabulum prosthesis.
Claim 13
Dependent Claim
34 words
An artificial hip joint as in claim 11 wherein said insert further defines notches adjacent said threaded ring for enabling said insert to be screwed into position with said ring threadedly engaging said grooves.
Claim 14
Dependent Claim
17 words
An artificial hip joint as in claim 1 wherein said insert is formed as one unitary piece.
Claim 15
Dependent Claim
168 words
An artificial hip joint comprising: an acetabulum prosthesis of the cotyloid cavity defining an aperture having screw threads on the inner surface thereof; at least one insert having an outer threaded surface and an inner bearing surface inserted into said aperture and threadedly connected by means of said threads to said acetabulum prosthesis to form a socket, the outer surface of said at least one inert engaging and being supported by the inner surface of said aperture; and a prosthesis of the head of the femur movably interconnected with said acetabulum prosthesis and including a pin to be driven into the bone-marrow channel of the femur, a .[.curved.]. neck integral with the pin, and a hip ball positioned on the neck, movably located within said socket and in movable contact with said insert, said socket enveloping more than one-half of the hip ball to prevent withdrawal of the hip ball from the socket, said artificial hip joint composed of surgical grade materials suitable for implantation into the body.
Claim 16
Dependent Claim
168 words
An artificial hip joint comprising: an acetabulum prosthesis of the cotyloid cavity defining an aperture having screw threads on the inner surface thereof; at least one insert having an outer threaded surface and an inner bearing surface inserted into said aperture and threadedly connected by means of said threads to said acetabulum prosthesis to form a socket, the outer surface of said at least one inert engaging and being supported by the inner surface of said aperture; and a prosthesis of the head of the femur movably interconnected with said acetabulum prosthesis and including a pin to be driven into the bone-marrow channel of the femur, a .[.curved.]. neck integral with the pin, and a hip ball positioned on the neck, movably located within said socket and in movable contact with said insert, said socket enveloping more than one-half of the hip ball to prevent withdrawal of the hip ball from the socket, said artificial hip joint composed of surgical grade materials suitable for implantation into the body.
Claim 17
Dependent Claim
24 words
An artificial hip joint as in claim 14 wherein said insert includes an integral threaded ring portion for threadedly engaging said acetabulum prosthesis threads.
Claim 18
Dependent Claim
35 words
An artificial hip joint as in claim 15 wherein said insert further defines notches adjacent to said threaded ring for enabling said insert to be screwed into position with said ring threadedly engaging said threads.
Claim 19
Dependent Claim
17 words
An artificial hip joint as in claim 14 wherein said insert socket defines more than a hemisphere.
Claim 20
Dependent Claim
17 words
An artificial hip joint as in claim 14 wherein said insert is formed as one unitary piece.
Claim 21
Dependent Claim
15 words
An artificial hip joint as in claim 18 wherein said insert is comprised of plastic.
Claim 22
Dependent Claim
17 words
An artificial hip joint as in claim 19 wherein said plastic is ultra high molecular weight polyethylene.
Claim 23
Dependent Claim
16 words
An artificial hip joint as in claim 14 wherein said insert is formed as two pieces.
Claim 24
Dependent Claim
16 words
An artificial hip joint as in claim 21 wherein said insert is comprised of cobalt alloy.
Claim 25
Dependent Claim
15 words
An artificial hip joint as in claim 22 wherein said cobalt alloy is ASTM F75-67.
Claim 26
Dependent Claim
32 words
An artificial hip joint as in claim 14 further including means in operative relationship with said femur head prosthesis for preventing rotation of the femur head prosthesis with respect to the femur.
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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) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |