Patent US3638243A successfully refreshed from Google Patents.
US3638243A
Expired / Lapsed
US
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Surgically implantable prosthetic joint
Assignee: The Ohio State University
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Filing: 1970-05-04
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Granted: 1972-02-01
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Expires: 1990-05-04
Abstract
Abstract A surgically implantable hinge joint for replacing a damaged or diseased natural hinge joint in the skeletal structure of humans and other animals and composed of relatively rotatable ball- and socket-members each having elongate shank portions for implantation in the proximal end portions of the bones which are severed from the removed natural joint, and which provides for at least limited axial rotation of one of the joint members relative to the other together with relative hinging or pivotal swinging movement of such members in a given plane.
Inventors
- 👤 William B Campbell Jr
- 👤 Jack E Burroughs
- 👤 Joe K Cochran Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:14
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/42; A61F2/4241; A61F2/38; A61F2/3804; A61F2/3836; A61F2/3854; A61F2/4225; A61F2002/30001; A61F2002/30621; A61F2002/30649; A61F2002/30662; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32549; Y10T403/32557; Y10T403/32565; Y10T403/32573
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
195 words
A surgically implantable prosthetic joint for replacement of a natural hinge joint between proximal ends of two bones, comprising: a rigid socket member having an elongated shank portion for surgical implantation in a proximal end portion of a first bone and a relatively enlarged, hollow head portion defining a spherical, internal chamber and an outwardly opening, arcuate slot communicating with said chamber and disposed in a common plane with the axis of the shank portion of said socket member; and a rigid ball member having a spherical head portion conforming to and rotatively carried within the chamber of said socket member and an elongated shank portion extending outwardly through the arcuate slot of said socket member for surgical implantation in a proximal end portion of a second bone, the shank portion of said ball member, at least in the region thereof disposed in said slot, being of elliptical cross section and having a minor width dimension slightly less than the width of said slot and a major width dimension slightly greater than the width of said slot, whereby to permit relative axial oscillation, as well as pivotal swinging movement between said socket and ball members.
Claim 2
Dependent Claim
195 words
A surgically implantable prosthetic joint for replacement of a natural hinge joint between proximal ends of two bones, comprising: a rigid socket member having an elongated shank portion for surgical implantation in a proximal end portion of a first bone and a relatively enlarged, hollow head portion defining a spherical, internal chamber and an outwardly opening, arcuate slot communicating with said chamber and disposed in a common plane with the axis of the shank portion of said socket member; and a rigid ball member having a spherical head portion conforming to and rotatively carried within the chamber of said socket member and an elongated shank portion extending outwardly through the arcuate slot of said socket member for surgical implantation in a proximal end portion of a second bone, the shank portion of said ball member, at least in the region thereof disposed in said slot, being of elliptical cross section and having a minor width dimension slightly less than the width of said slot and a major width dimension slightly greater than the width of said slot, whereby to permit relative axial oscillation, as well as pivotal swinging movement between said socket and ball members.
Claim 3
Dependent Claim
20 words
A prosthetic joint according to claim 1, wherein said socket member is composed of two half-sections secured to one another.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |