US3648705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retention bar means for surgical incision closure
Assignee: Individual
•
Filing: 1970-07-16
•
Granted: 1972-03-14
•
Expires: 1990-07-16
Abstract
Abstract For use in retaining a surgical incision against inadvertent rupture or disruption, a pair of retention bar elements which provides reinforcing means for the retention thread loops of an incision closure and provides means for reducing flesh tearing and necrosis at the thread loop penetrations of the skin and body tissue. The pair of retention bar elements are adapted to be located parallel and on opposite sides of the line of incision of a surgical wound and preferably are formed of pliable tear resistant material, such as extruded polyvinyl plastic material. A preferred form is generally of a figure of eight configuration as seen in transverse section so that each retention bar element includes parallel dual tubular portions connected by a thin web portion. In use of the retention bar elements of the invention, retention thread loops pass through the web portions of the pair of bars, extend transversely over the incision, and encircle the confrontingly extending tubular inner portions respectively of the retention bar elements, the bar providing purchase so that the forces uniting the loops and holding the incision are oriented away from the flesh surface and do not tear it, but rather the tearing forces are transferred to the bars, and the pliability of the material yields so as to conform to the flesh surface and distribute the load of the retention loops as the contour of the flesh surface changes during the healing process as swelling occurs and then diminishes.
Inventors
- 👤 Banning G Lary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:58
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0466
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
316 words
For use in a surgical incision wound closure procedure wherein retention thread loop sutures are applied transversely of the incision area as a precautionary measure for preventing wound disruption, with a portion of the loop being embedded in the flesh beneath the incision line and a portion above the line and spanning the incision, retention bar means for reinforcing the retention thread loops developed in closing the incision comprising, a pair of separate elongate retention bar elements of flexible, pliable, rubbery material resistant to slicing forces and adapted for placement in parallel relation longitudinally extending respectively on opposite sides of the wound incision, each of said elements being of a companionate length to overlay opposite sides of said incision line in spaced relation thereto, each bar element being generally of a configuration in cross section having an upper and a lower nonadhesive surface with said lower surface being configured in cross section so that when the element is in normal unstressed condition, a portion of the lower surface contacts the surface of the underlying flesh and the remainder of the lower surface is above the flesh, the pair of retention bar elements each including a stitch receiving portion extending longitudinally of the bar element for passage therethrough at spaced portions the suture loops along the element and with opposite sides of the loops being opposingly arranged, with loop portions transversely spanning the flesh surface in a network of tie threads, and each of the bar elements including a relatively thick portion to constrain forces drawing the suture loops tautly to be applied generally outwardly of the flesh surface to resist tearing of the flesh and to transfer slicing forces to the element and resist tearing of the flesh, said elements being deformable in cross section and longitudinally flexible to conform to and yield in response to various stages of swelling as the healing process takes place.
Claim 2
Dependent Claim
316 words
For use in a surgical incision wound closure procedure wherein retention thread loop sutures are applied transversely of the incision area as a precautionary measure for preventing wound disruption, with a portion of the loop being embedded in the flesh beneath the incision line and a portion above the line and spanning the incision, retention bar means for reinforcing the retention thread loops developed in closing the incision comprising, a pair of separate elongate retention bar elements of flexible, pliable, rubbery material resistant to slicing forces and adapted for placement in parallel relation longitudinally extending respectively on opposite sides of the wound incision, each of said elements being of a companionate length to overlay opposite sides of said incision line in spaced relation thereto, each bar element being generally of a configuration in cross section having an upper and a lower nonadhesive surface with said lower surface being configured in cross section so that when the element is in normal unstressed condition, a portion of the lower surface contacts the surface of the underlying flesh and the remainder of the lower surface is above the flesh, the pair of retention bar elements each including a stitch receiving portion extending longitudinally of the bar element for passage therethrough at spaced portions the suture loops along the element and with opposite sides of the loops being opposingly arranged, with loop portions transversely spanning the flesh surface in a network of tie threads, and each of the bar elements including a relatively thick portion to constrain forces drawing the suture loops tautly to be applied generally outwardly of the flesh surface to resist tearing of the flesh and to transfer slicing forces to the element and resist tearing of the flesh, said elements being deformable in cross section and longitudinally flexible to conform to and yield in response to various stages of swelling as the healing process takes place.
Claim 3
Dependent Claim
27 words
The device as set forth in claim 1 wherein said lower surface of each retention bar element is arcuate in transverse extension and defines a fair curve.
Claim 4
Dependent Claim
31 words
The device as set forth in claim 2 wherein the portion of the lower surface to contact the flesh surface is continuous along the length of each of the bar elements.
Claim 5
Dependent Claim
65 words
The device as set forth in claim 3 wherein the lower portion of each bar element comprises a pair of spaced rib surfaces with each of the rib surfaces having a central zone eXtending along the lower surface to contact the flesh and with a portion of the lower surface lying between the rib surfaces when said bar element is in a normal unstressed condition.
Claim 6
Dependent Claim
45 words
The device as set forth in claim 1 wherein the relatively thick portion of said retention bar is provided with a through recess extending coincident to the length thereof, weakening the cross sectional area of the element and rendering it yieldable to forces of compression.
Claim 7
Dependent Claim
26 words
The device as set forth in claim 1 wherein guide line means extending longitudinally of each bar element is provided to designate the stitch receiving portion.
Claim 8
Dependent Claim
53 words
The device as set forth in claim 1 including a longitudinally extending plate extending outwardly of the stitch receiving portion and adapted to overlay the zone of contact of the lower portion of the lower surface of each bar element when applied in an unstressed condition in parallel relation of an incision line.
Claim 9
Dependent Claim
25 words
The improvement as set forth in claim 7 wherein said plate extends outwardly in flange form of the relatively thick portion of the retention element.
Claim 10
Dependent Claim
54 words
The device as set forth in claim 1 wherein the configuration of the retention element defines a figure of eight area in cross section, with the central zone defining said stitch receiving portion and with either of the flanking portions thereof being adapted for use as the relatively thick portion for causing purchase advantage.
Claim 11
Dependent Claim
37 words
The device as set forth in claim 1 wherein the exterior surfaces of the retention bar elements are defined in part by a longitudinally extending recess for orientating the stitch receiving portion during use of the elements.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |