Patent US4945897A successfully refreshed from Google Patents.
US4945897A
Expired / Lapsed
US
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Surgical retractor
Assignee: Automated Medical Products Corp
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Filing: 1989-05-22
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Granted: 1990-08-07
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Expires: 2009-05-22
Abstract
Abstract A retractor is provided for use in performing a surgical procedure such as correcting the morbid obesity of a patient. The retractor incorporates a blade section and a handle section protruding from a first peripheral segment of the blade section. The blade section includes a first portion connected to the handle section and an elongate second portion extending angularly from the first portion. The second portion is provided with an elongate open end slot extending from a distal end of the second portion and terminating in the vicinity of a juncture between the first and second portions. The slot forms the blade section second portion into a pair of finger-elements. Each element has a first surface which is adapted to engage a perimetrical segment of an incision made in the patient during the surgical procedure.
Inventors
- 👤 Robert Greenstein
- 👤 Nash Aussenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
246 words
A surgical retractor for use with an adjustable holder in performing a gastroplasty procedure for morbid obesity wherein such procedure requires a vertical line to be formed on the abdomen of a patient by the head of a surgical staple gun, said retractor being of unitary construction and comprising a blade section having an exposed upper first portion and an elongate substantially transverse second portion depending from a juncture formed between said first and second portions for disposition within an incision made in the patient; and a handle section disposed opposite the juncture and extending laterally from a peripheral segment of said first portion; said blade section second portion including a pair of substantially rigid finger-like elements, each element having a substantially broad convex exterior first surface for engaging a tissue portion of the patient circumjacent the incision, said blade section including an elongate slot disposed intermediate said finger-like elements; said slot having a depending first segment extending the full length of said finger-like elements and having an open lower end, and a second segment extending transversely of said first segment and terminating within the blade section upper first portion at a substantial distance from the juncture of said first and second portions, said second segment forming a notch within the blade section upper first portion, said notch being adapted to accommodate the head of the surgical staple gun during the gastroplasty procedure; the lower end portion of each depending finger-like element having a blunt configuration.
Claim 2
Dependent Claim
246 words
A surgical retractor for use with an adjustable holder in performing a gastroplasty procedure for morbid obesity wherein such procedure requires a vertical line to be formed on the abdomen of a patient by the head of a surgical staple gun, said retractor being of unitary construction and comprising a blade section having an exposed upper first portion and an elongate substantially transverse second portion depending from a juncture formed between said first and second portions for disposition within an incision made in the patient; and a handle section disposed opposite the juncture and extending laterally from a peripheral segment of said first portion; said blade section second portion including a pair of substantially rigid finger-like elements, each element having a substantially broad convex exterior first surface for engaging a tissue portion of the patient circumjacent the incision, said blade section including an elongate slot disposed intermediate said finger-like elements; said slot having a depending first segment extending the full length of said finger-like elements and having an open lower end, and a second segment extending transversely of said first segment and terminating within the blade section upper first portion at a substantial distance from the juncture of said first and second portions, said second segment forming a notch within the blade section upper first portion, said notch being adapted to accommodate the head of the surgical staple gun during the gastroplasty procedure; the lower end portion of each depending finger-like element having a blunt configuration.
Claim 3
Dependent Claim
19 words
The retractor of claim 1 wherein the blunt lower end portion of each element has an increased material thickness.
Claim 4
Dependent Claim
27 words
The retractor of claim 1 wherein at least one of the elongate finger-like elements is provided with a substantially concave exterior second surface opposite said first surface.
Claim 5
Dependent Claim
14 words
The retractor of claim 1 wherein the finger-like elements are of substantially like configuration.
Claim 6
Dependent Claim
20 words
The retractor of claim 1 wherein the elongate slot has a longitudinal axis substantially aligned with the protruding handle section.
Claim 7
Dependent Claim
15 words
The retractor of claim 1 wherein the elongate finger-like elements have substantially equal longitudinal dimensions.
Claim 8
Dependent Claim
19 words
The retractor of claim 1 wherein one elongate finger-like element has a longer longitudinal dimension than the other element.
Claim 9
Dependent Claim
33 words
The retractor of claim 3 wherein both elements are provided with a substantially concave exterior second surface the concave surfaces of the pair of finger-like elements have a substantially common center of curvature.
Claim 10
Dependent Claim
18 words
The retractor of claim 1 wherein the first portion of the blade section has a substantially planar configuration.
Claim 11
Dependent Claim
47 words
The retractor of claim 1 wherein the second portion of the blade section includes a bridge means disposed within the slot and extending transversely of and interconnecting corresponding segments of said finger-like elements; said bridge means being disposed a predetermined longitudinal distance from the slot open end.
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) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |