US3948272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reconstruction device for lacrimal drainage ducts
Assignee: Xomed Inc
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Filing: 1975-04-08
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Granted: 1976-04-06
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Expires: 1995-04-08
Abstract
Abstract The present invention constitutes a reconstructive replacement channel for the lacrimal drainage ducts. It includes a pair of stainless steel probes as well as a length of silicone tubing which is left in vivo after completion of an operation. The two probes, each of which are surrounded by lengths of silicone tubing, are fed into the lacrimal sac, through the tear ducts, and finally into the upper cavity of the nose. Each probe is fed inward to the lacrimal sac which exists between the inner corner of the eye and the upper bridge of the nose. The probe is produced in the shape of a helix in order to enable it to be fed with greater ease into the lacrimal passageway.
Inventors
- 👤 Pierre Guibor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:57
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/00772
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
67 words
A reconstruction device for the lacrimal drainage ducts comprising: a pair of arched probe members, each arch being between ten and thirty degrees; and a length of tubing affixed at the ends thereof to one of each ends of said arched probes, whereby said arched probe members serve to facilitate the insertion of said tubing into and through the lacrimal ducts during the performance of reconstructive surgery.
Claim 2
Dependent Claim
67 words
A reconstruction device for the lacrimal drainage ducts comprising: a pair of arched probe members, each arch being between ten and thirty degrees; and a length of tubing affixed at the ends thereof to one of each ends of said arched probes, whereby said arched probe members serve to facilitate the insertion of said tubing into and through the lacrimal ducts during the performance of reconstructive surgery.
Claim 3
Dependent Claim
14 words
The device as recited in claim 1 in which said probes comprise stainless steel.
Claim 4
Dependent Claim
15 words
The device as recited in claim 1 in which said tubing is formed of silicone.
Claim 5
Dependent Claim
21 words
The device as recited in claim 1 in which said tubing is circumferentially affixed about the ends of said arched probes.
Claim 6
Dependent Claim
21 words
The device as recited in claim 1 in which said tubing is abuttingly affixed to the ends of said arched probes.
References Cited (Backward Citations)
US2154968A
Cited
US3726284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |