Patent US4836190A successfully refreshed from Google Patents.
US4836190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visceral retractor
Assignee: Individual
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Filing: 1988-03-04
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Granted: 1989-06-06
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Expires: 2008-03-04
Abstract
Abstract An arm-actuated surgical retractor according to the invention is tiltable in response to movement of the forearm of an operator by means of a rigid handle extension which arches from the rear of the handle to overlie the forearm above the wrist. The extension may be formed as an abbreviated helix and may be removably mounted on the handle and angularly adjustable with respect to the handle.
Inventors
- 👤 Christian R. Zwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:02
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
103 words
Surgical retractor means tiltable in response to movement of the forearm of an operator, comprising: (a) an elongated manually grippable handle; (b) a viscera engaging blade affixed to that end of said handle projecting forwardly of the operator's hand; (c) rigid handle extension means attached to that end of said handle projecting rearwardly of the operator's hand, said extension means extending rearwardly from said handle sufficiently for engagement with the forearm when said handle is gripped; and, (d) said extension means including an open helical portion having a longitudinal axis generally parallel with the longitudinal centerline of said handle and laterally spaced therefrom.
Claim 2
Dependent Claim
103 words
Surgical retractor means tiltable in response to movement of the forearm of an operator, comprising: (a) an elongated manually grippable handle; (b) a viscera engaging blade affixed to that end of said handle projecting forwardly of the operator's hand; (c) rigid handle extension means attached to that end of said handle projecting rearwardly of the operator's hand, said extension means extending rearwardly from said handle sufficiently for engagement with the forearm when said handle is gripped; and, (d) said extension means including an open helical portion having a longitudinal axis generally parallel with the longitudinal centerline of said handle and laterally spaced therefrom.
Claim 3
Dependent Claim
18 words
The retractor means set forth in claim 1, wherein said extension means is detachably mounted on said handle.
Claim 4
Dependent Claim
20 words
The retractor set forth in claim 2, wherein said extension means and said handle are provided with interlocking mounting means.
Claim 5
Dependent Claim
27 words
The retractor set forth in claim 3, wherein said mounting means comprise a shank projecting from said extension means into a receiving recess relieved in said handle.
Claim 6
Dependent Claim
22 words
The retractor set forth in claim 1, including mounting means for attaching said extension means and said handle in adjustable angular relationship.
Claim 7
Dependent Claim
26 words
The retractor set forth in claim 5, wherein said mounting means comprises juxtaposed portions of said extension means and said handle releasably fixed by fastener means.
Claim 8
Dependent Claim
89 words
Surgical retractor means tiltable in response to movement of the forearm of an operator, comprising: (a) an elongated manually grippable handle; (b) viscera engaging means disposed adjacent one end of said handle; (c) rigid handle extension means adjacent the other end of said handle and projecting therefrom sufficiently for engagement with the forearm when said handle is gripped; (d) mounting means for attaching said extension means and said handle in substantially universally adjustable relationship; and, (e) said mounting means comprising a member intermediate said extension means and said handle.
Claim 9
Dependent Claim
89 words
Surgical retractor means tiltable in response to movement of the forearm of an operator, comprising: (a) an elongated manually grippable handle; (b) viscera engaging means disposed adjacent one end of said handle; (c) rigid handle extension means adjacent the other end of said handle and projecting therefrom sufficiently for engagement with the forearm when said handle is gripped; (d) mounting means for attaching said extension means and said handle in substantially universally adjustable relationship; and, (e) said mounting means comprising a member intermediate said extension means and said handle.
References Cited (Backward Citations)
GB117723A
Cited
FR1001970A
Cited
US2482589A
Cited
US3599621A
Cited
US3901209A
Cited
SU629923A1
Cited
FR2475885A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |