Patent US4299227A successfully refreshed from Google Patents.
US4299227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ophthalmological appliance
Assignee: Individual
•
Filing: 1979-10-19
•
Granted: 1981-11-10
•
Expires: 1999-10-19
Abstract
Abstract A method of correcting retinal detachments through a small conjunctival incision wherein an expandable member is inserted into Tenon's space, the member is expanded, to form an indentation in the eye, and left in place until the subretinal fluid has absorbed and the retina has reattached.
Inventors
- 👤 Harvey A. Lincoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:57
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61F; A61F9/00; A61F9/007; A61F9/00727
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
A method of correcting retinal detachments through a small conjunctival incision comprising the steps of inserting an expandable member into Tenon's space to the depth of the break; forming a scleral indentation in the eye by expanding said member; leaving said member in place until subretinal fluid has absorbed and the retina has reattached; and collapsing and removing said member.
Claim 2
Independent Claim
60 words
A method of correcting retinal detachments through a small conjunctival incision comprising the steps of inserting an expandable member into Tenon's space to the depth of the break; forming a scleral indentation in the eye by expanding said member; leaving said member in place until subretinal fluid has absorbed and the retina has reattached; and collapsing and removing said member.
Claim 3
Dependent Claim
33 words
In a method of correcting retinal detachments including the steps of claim 1, the additional step of leaving said member in place for at least three days after reattachment to promote better adhesion.
Claim 4
Dependent Claim
26 words
In a method of correcting retinal detachments including the steps of claim 2, the additional step of collapsing said member in stages prior to removing same.
References Cited (Backward Citations)
US2210744A
Cited
US2862497A
Cited
US3034510A
Cited
US3435826A
Cited
US3467101A
Cited
US4154243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |