Patent US3869730A successfully refreshed from Google Patents.
US3869730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgically implantable joint prosthesis
Assignee: Individual
•
Filing: 1973-07-25
•
Granted: 1975-03-11
•
Expires: 1993-07-25
Abstract
Abstract Surgically implantable shoulder joint prosthesis comprising a gimbal supported joint attached by cushioned rotating pin connections to an intramedullary pin in the humerus and a cruciform shaped perforated connector in the glenoid cavity. Perforations allow for bone ingrowth to secure the glenoid connection. Gimbal joint is preferably covered with a sheath to prevent tissue ingrowth.
Inventors
- 👤 Barry A Skobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:22
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/40; A61F2/30721; A61F2/30742; A61F2/4059; A61F2/4081; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30143; A61F2002/30159; A61F2002/30179; A61F2002/30199; A61F2002/302; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30362; A61F2002/30364; A61F2002/30405; A61F2002/30433; A61F2002/30535; A61F2002/30563; A61F2002/30621; A61F2002/30624; A61F2002/30635; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30795; A61F2002/30797; A61F2002/30841; A61F2002/30845; A61F2002/30878; A61F2002/30884; A61F2002/30899; A61F2002/30902; A61F2/4014; A61F2002/4018; A61F2002/4022; A61F2002/4085; A61F2/46; A61F2002/4631; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2220/0041; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0028; A61F2230/0058; A61F2230/0063; A61F2230/0065
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
62 words
A surgically implantable joint prosthesis comprising a gimbal housing, a gimbal ring pinned at first axially opposite points to said housing, an inner body pinned to said ring at opposite sides thereof on an axis perpendicular to said first axially opposite points, first bone securing means rotatably attached to said housing, and second bone securing means rotatably attached to said inner body.
Claim 2
Dependent Claim
62 words
A surgically implantable joint prosthesis comprising a gimbal housing, a gimbal ring pinned at first axially opposite points to said housing, an inner body pinned to said ring at opposite sides thereof on an axis perpendicular to said first axially opposite points, first bone securing means rotatably attached to said housing, and second bone securing means rotatably attached to said inner body.
Claim 3
Dependent Claim
62 words
A surgically implantable joint prosthesis comprising a gimbal housing, a gimbal ring pinned at first axially opposite points to said housing, an inner body pinned to said ring at opposite sides thereof on an axis perpendicular to said first axially opposite points, first bone securing means rotatably attached to said housing, and second bone securing means rotatably attached to said inner body.
Claim 4
Dependent Claim
62 words
A surgically implantable joint prosthesis comprising a gimbal housing, a gimbal ring pinned at first axially opposite points to said housing, an inner body pinned to said ring at opposite sides thereof on an axis perpendicular to said first axially opposite points, first bone securing means rotatably attached to said housing, and second bone securing means rotatably attached to said inner body.
Claim 5
Dependent Claim
23 words
A surgically implantable joint prosthesis as defined in claim 1 wherein cushioning means are provided between said housing and said bone securing means.
Claim 6
Dependent Claim
24 words
A surgically implantable joint prosthesis as defined in claim 1 wherein cushioning means are provided between said inner body and said bone securing means.
Claim 7
Dependent Claim
18 words
A surgically implantable joint prosthesis in claim 1 wherein said gimbal ring is a self lubricating polymeric material.
Claim 8
Dependent Claim
46 words
A surgically implantable joint prosthesis as defined in claim 4 wherein at least one of said first and second bOne securing means comprises a backing disc and a perforated plate structure extending from said backing disc and adapted to be driven into bone adjacent said joint.
Claim 9
Dependent Claim
28 words
A surgically implantable joint prosthesis as defined in claim 5 wherein said perforated plate structure has a tapered edge along its extremity on the side opposite said disc.
Claim 10
Dependent Claim
20 words
A surgically implantable joint prosthesis as defined in claim 5 wherein said perforated plate structure is of generally cruciform configuration.
Claim 11
Dependent Claim
46 words
A surgically implantable joint prosthesis as defined in claim 5 wherein the other of said first and second bone securing means is an elongated stem adapted to be driven into the intramedullary canal of adjacent bone, said stem having flat face portions on the surface thereof.
Claim 12
Dependent Claim
41 words
A surgically implantable joint prosthesis as defined in claim 8 wherein cushioning means are provided in the rotatable attachment between said gimbal housing and said first bone securing means and also between said inner body and said second bone securing means.
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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |