US4924857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical retractor
Assignee: Individual
•
Filing: 1988-12-23
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Granted: 1990-05-15
•
Expires: 2008-12-23
Abstract
Abstract A retractor for vaginal surgery having a pair of retractor blades centrally supported in a rectangualr frame formed by a pair of support bars to which the retractor blades are fixed, extending therefrom perpendicular to the plane of the frame. Adjustment of blade spacing is accomplished by turnbuckle mechanisms connecting the ends of the support bars and fixed thereto to maintain a substantially rectangular shape as the frame is adjusted.
Inventors
- 👤 Saeed Mahmoodian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:55
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/0293
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
A retractor for vaginal surgery comprising: a pair of support bars; a pair of retractor blades each including an attachment portion fixed rigidly to one of said support bars, said blades each also including a blade portion and an offset portion between said blade portion and said attachment portion; a pair of turnbuckle mechanisms, each having a central threaded link means, and a pair of oppositely threaded rods respectively rigidly fixed to said support bars at end portions thereof so as to form a frame; said retractor blades offset portions being formed such that said blade portions are laterally displaced from said support bars centrally of said frame, said blade portions extending at substantially right angles to the plane of said frame; and said support bars and retractor blades being moved toward and away from each other by adjustment of said threaded link means of said turnbuckle mechanisms, said frame maintaining a substantially rectangular configuration at all adjusted positions of said retractor blades.
Claim 2
Dependent Claim
163 words
A retractor for vaginal surgery comprising: a pair of support bars; a pair of retractor blades each including an attachment portion fixed rigidly to one of said support bars, said blades each also including a blade portion and an offset portion between said blade portion and said attachment portion; a pair of turnbuckle mechanisms, each having a central threaded link means, and a pair of oppositely threaded rods respectively rigidly fixed to said support bars at end portions thereof so as to form a frame; said retractor blades offset portions being formed such that said blade portions are laterally displaced from said support bars centrally of said frame, said blade portions extending at substantially right angles to the plane of said frame; and said support bars and retractor blades being moved toward and away from each other by adjustment of said threaded link means of said turnbuckle mechanisms, said frame maintaining a substantially rectangular configuration at all adjusted positions of said retractor blades.
Claim 3
Dependent Claim
166 words
A vaginal retractor comprising: a substantially planar rectangular frame formed by a pair of parallel support bars and a pair of turnbuckle mechanisms each having a central threaded link means and a pair of threaded rods respectively rigidly connected to said support bars at end portions thereof and extending at right angles thereto; a retractor blade fixed to each of said support bars at an intermediate portion thereof, said retractor blades each having an attachment portion rigidly attached to a support bar, a blade portion extending perpendicular to the plane of said frame, and an offset portion by which said blade portion is laterally displaced towards the center of said frame such that the blade portions can be moved to be adjacent to each other for insertion; adjustment of said threaded link means of said turnbuckle mechanisms serving to move said blade portions toward and away from each other while maintaining a parallel relationship of said blade portions and a substantially rectangular configuration of said frame.
Claim 4
Dependent Claim
166 words
A vaginal retractor comprising: a substantially planar rectangular frame formed by a pair of parallel support bars and a pair of turnbuckle mechanisms each having a central threaded link means and a pair of threaded rods respectively rigidly connected to said support bars at end portions thereof and extending at right angles thereto; a retractor blade fixed to each of said support bars at an intermediate portion thereof, said retractor blades each having an attachment portion rigidly attached to a support bar, a blade portion extending perpendicular to the plane of said frame, and an offset portion by which said blade portion is laterally displaced towards the center of said frame such that the blade portions can be moved to be adjacent to each other for insertion; adjustment of said threaded link means of said turnbuckle mechanisms serving to move said blade portions toward and away from each other while maintaining a parallel relationship of said blade portions and a substantially rectangular configuration of said frame.
Claim 5
Dependent Claim
20 words
A vaginal retractor as recited in claim 2, wherein said blade portions are formed to have facing cylindrically shaped surfaces.
Claim 6
Dependent Claim
18 words
A vaginal retractor as recited in claim 3, wherein free ends of said blade portions are outwardly curved.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-14 | 1993-11-13 | 1994-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-14 | 1997-11-13 | 1998-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-14 | 2001-11-13 | 2002-05-15 | $7700.00 | Window Closed / Lapsed |