Patent US3650274A successfully refreshed from Google Patents.
US3650274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retention suture bridge
Assignee: Ethicon Inc
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Filing: 1970-10-20
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Granted: 1972-03-21
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Expires: 1990-10-20
Abstract
Abstract Apparatus for controlling and distributing the tension of retention sutures used in abdominal surgery has a bridging element that may be placed across the surgical incision underneath the loosely tied suture. The surgeon obtains the desired suture tension by placing the tied suture within a slot in a positive locking capstan that is mounted on the bridging element, and rotating the capstan to take up the slack. An increase in the suture tension caused by swelling of the wound may be released by turning the capstan in the reverse direction.
Inventors
- 👤 Leon C Edwards
- 👤 Harvey B Mandel
- 👤 Carl R Tillstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:45
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0466; A61B2017/0496
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
131 words
A surgical apparatus for use in controlling and distributing the tension of transverse retention sutures comprising: a surgical incision bridging element, having a thickened central portion; a cylindrical bore in said thickened portion perpendicular to the longitudinal axis of said bridging element, said cylindrical bore being transversed by a slot extending parallel to said longitudinal axis; openings spaced centrally and longitudinally beyond each side of said slot and extending through the bridging element; a positive locking capstan characterized by a cogged flange at the outer end, positioned within said bore for slideable and rotary motion relative thereto; a slot transversing said cogged flange; and, a stop adjacent the wall of said bore and integral with the bridging element, adapted to engage the cogged flange when slideably moved to its inward position.
Claim 2
Dependent Claim
131 words
A surgical apparatus for use in controlling and distributing the tension of transverse retention sutures comprising: a surgical incision bridging element, having a thickened central portion; a cylindrical bore in said thickened portion perpendicular to the longitudinal axis of said bridging element, said cylindrical bore being transversed by a slot extending parallel to said longitudinal axis; openings spaced centrally and longitudinally beyond each side of said slot and extending through the bridging element; a positive locking capstan characterized by a cogged flange at the outer end, positioned within said bore for slideable and rotary motion relative thereto; a slot transversing said cogged flange; and, a stop adjacent the wall of said bore and integral with the bridging element, adapted to engage the cogged flange when slideably moved to its inward position.
Claim 3
Dependent Claim
17 words
The surgical apparatus of claim 1 wherein said bridging element is molded of a traNsparent plastic material.
Claim 4
Dependent Claim
24 words
The surgical apparatus of claim 2 wherein said plastic material is stable at elevated temperatures whereby the apparatus may be repeatedly sterilized by autoclaving.
Claim 5
Dependent Claim
17 words
The surgical apparatus of claim 1 wherein the bridging element is characterized by a concave lower surface.
Claim 6
Dependent Claim
19 words
The surgical apparatus of claim 1 wherein a plurality of stops are positioned around the circumference of said bore.
Claim 7
Dependent Claim
29 words
The surgical apparatus of claim 1 characterized by a V-shaped entrance to the slot transversing the cogged flange, whereby the placement of a suture in the slot is facilitated.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |