US4667657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical wound retractor
Assignee: BLAGOVESCHENSKY GOSUDARSTVENNY MEDITSINSKY INSTITUT 675006 BLAGOVESCHENSK ULITSA GORKOGO 95
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Filing: 1985-10-18
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Granted: 1987-05-26
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Expires: 2005-10-18
Abstract
Abstract A surgical wound retractor including two diverging branches made up of a stationary part and a movable working part hinged thereto. The working parts of both branches have one common guide which embraces them and is rigidly secured on central rods installed on the stationary parts of the branches, while a movable rod disposed between the stationary parts of the branches has one end connected to the diverging device and the other end to the drive of the diverging device.
Inventors
- 👤 Yaroslav P. Kulik
- 👤 Ivan I. Shmyrin
- 👤 Rustam I. Utyamyshev
- 👤 Marina N. Vyrzhikovskaya
- 👤 Boris A. Smirnov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:15
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/0206
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
192 words
A surgical wound retractor comprising: two diverging branches, each having a stationary part and a movable working part made as a hook whose one end is hinged to said stationary part, while the other end is curved in an arc; a central guide embracing both said curved ends of said movable working parts of said branches, said central guide being curved in the direction of the curve of the ends of the working parts of said branchs embraced thereby; two central rods positioned between said movable parts, one end of each rod is rigidly connected to said central guide, while the other end is rigidly secured to said stationary part of a respective branch; a movable rod positioned between and along said central rods and stationary parts of said branches; a diverging device including a slide rigidly secured on the end of said movable rod, said slide being installed so that it can move along said central rods which are guides for said slide and connected to said movable working parts of said branches; and a drive of said diverging device being rigidly secured to the other end of said movable rod.
Claim 2
Dependent Claim
192 words
A surgical wound retractor comprising: two diverging branches, each having a stationary part and a movable working part made as a hook whose one end is hinged to said stationary part, while the other end is curved in an arc; a central guide embracing both said curved ends of said movable working parts of said branches, said central guide being curved in the direction of the curve of the ends of the working parts of said branchs embraced thereby; two central rods positioned between said movable parts, one end of each rod is rigidly connected to said central guide, while the other end is rigidly secured to said stationary part of a respective branch; a movable rod positioned between and along said central rods and stationary parts of said branches; a diverging device including a slide rigidly secured on the end of said movable rod, said slide being installed so that it can move along said central rods which are guides for said slide and connected to said movable working parts of said branches; and a drive of said diverging device being rigidly secured to the other end of said movable rod.
Claim 3
Dependent Claim
34 words
A surgical wound retractor as claimed in claim 1, wherein said drive of said diverging device is a nut rigidly secured to a screw thread defined by said other end of said movable rod.
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) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |