Patent US3739403A successfully refreshed from Google Patents.
US3739403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic joint having a tissue ingrowth preventive capsule
Assignee: Individual
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Filing: 1971-10-04
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Granted: 1973-06-19
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Expires: 1991-10-04
Abstract
Abstract A prosthetic joint comprises two relatively rigid intramedullary arms interconnected by an integral hinge portion to allow articulation of the arms. The hinge portion is located within a capsule of relatively resilient and deformable material which protects the hinge portion from ingrowing body tissues.
Inventors
- 👤 F Nicolle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:37
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30721; A61F2/30742; A61F2/38; A61F2/3804; A61F2/42; A61F2/4241; A61F2/0077; A61F2002/009; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30153; A61F2002/30316; A61F2002/30317; A61F2002/30324; A61F2002/30535; A61F2002/30563; A61F2002/30594; A61F2002/30604; A61F2002/30616; A61F2/30767; A61F2/30771; A61F2002/30878; A61F2002/30932; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0019; A61F2250/00; A61F2250/0014; A61F2250/0036; Y; Y10; Y10S; Y10S128/00; Y10S128/21
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
A prosthetic joint comprising two intramedullary arms and an integrally formed interconnecting portion, said arms being relatively rigid and said interconnecting portion being of such reduced thickness as to provide a flexible hinge between said arms, said joint also including a relatively resilient and deformable capsule within which said interconnecting portion is located and outwardly from which said arms extend, whereby the flexible hinge is protected from ingrowing body tissues.
Claim 2
Dependent Claim
70 words
A prosthetic joint comprising two intramedullary arms and an integrally formed interconnecting portion, said arms being relatively rigid and said interconnecting portion being of such reduced thickness as to provide a flexible hinge between said arms, said joint also including a relatively resilient and deformable capsule within which said interconnecting portion is located and outwardly from which said arms extend, whereby the flexible hinge is protected from ingrowing body tissues.
Claim 3
Dependent Claim
43 words
A prosthetic joint as claimed in claim 1 wherein said capsule has openings through which said arms extend and thick-walled outwardly extending portions surrounding said openings to provide buttresses for the cut bone ends between which the joint is adapted to be fitted.
Claim 4
Dependent Claim
45 words
A prosthetic joint as claimed in claim 1 wherein said inner ends of said arms are formed with abutment portions located on the two sides of the flexible hinge respectively, the abutment portions being joined by an offset integral web portion containing said interconnecting portion.
Claim 5
Dependent Claim
49 words
A prosthetic joint comprising two relatively rigid intramedullary arms and hinge means interconnecting said arms, said joint also including a relatively resilient and deformable capsule within which said hinge means is disposed and outwardly from which said arms extend, whereby the hinge means is protected from ingrowing body tissues.
Claim 6
Dependent Claim
49 words
A prosthetic joint comprising two relatively rigid intramedullary arms and hinge means interconnecting said arms, said joint also including a relatively resilient and deformable capsule within which said hinge means is disposed and outwardly from which said arms extend, whereby the hinge means is protected from ingrowing body tissues.
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |