Patent US3722003A successfully refreshed from Google Patents.
US3722003A
Expired / Lapsed
US
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Molded l-shaped lenticular prosthesis
Assignee: Xomox Corp
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Filing: 1971-05-18
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Granted: 1973-03-27
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Expires: 1991-05-18
Abstract
Abstract An L-shaped lenticular prosthesis molded from FEP or medical grade silicone rubber to its final size, ready for inspection, packaging and sterilization, said prosthesis being entirely free of residual stresses.
Inventors
- 👤 D Walchle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:58
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/18; A61F2002/183; Y; Y10; Y10S; Y10S128/00; Y10S128/14; Y10S128/21
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
168 words
A one-piece, moulded, resilient L-shaped lenticular prosthesis for placement in the ossicular chain of a human ear to replace a damaged or diseased section of the ossicular chain which has been removed exposing a free outer end of the long process of the incus and the lenticular process of the stapes, comprising a pair of elongate, hollow tubes each having inner and outer ends, said tubes interconnected at a right angle to one another at an adjacent edge portion of their inner ends by an integral web at one side of the inner ends, one of said tubes being longer than the other of said tubes, and each tube slit longitudinally the entire length thereof on the side thereof opposite said web so that said tubes may be flexed open and their outer ends placed over the lenticular and long process and then allowed to close and firmly engage the lenticular and long process to hold the prosthesis in position due to the inherent resilience of the tubes.
Claim 2
Dependent Claim
168 words
A one-piece, moulded, resilient L-shaped lenticular prosthesis for placement in the ossicular chain of a human ear to replace a damaged or diseased section of the ossicular chain which has been removed exposing a free outer end of the long process of the incus and the lenticular process of the stapes, comprising a pair of elongate, hollow tubes each having inner and outer ends, said tubes interconnected at a right angle to one another at an adjacent edge portion of their inner ends by an integral web at one side of the inner ends, one of said tubes being longer than the other of said tubes, and each tube slit longitudinally the entire length thereof on the side thereof opposite said web so that said tubes may be flexed open and their outer ends placed over the lenticular and long process and then allowed to close and firmly engage the lenticular and long process to hold the prosthesis in position due to the inherent resilience of the tubes.
Claim 3
Dependent Claim
11 words
A prosthesis as in claim 1, wherein the prosthesis comprises FEP.
Claim 4
Dependent Claim
15 words
A prosthesis as in claim 1 in which the prosthesis comprises medical grade silicone rubber.
Claim 5
Dependent Claim
17 words
A prosthesis as in claim 3, wherein the silicone rubber has a durometer value of from 60-70.
References Cited (Backward Citations)
FR327698A
Cited
US3454006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |