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Flexibly Connected, Radial Segmented, Bio-Absorbable, Tissue Thickness Compensator for Reduced Anastomotic Leaks

IP.com Disclosure Number: IPCOM000225565D
Publication Date: 2013-Feb-18
Document File: 2 page(s) / 364K

Publishing Venue

The IP.com Prior Art Database

Abstract

A circular stapler with radial, torsional, and axial force compensating elements working with natural colon movements i.e. permits radial flexibility, twisting between segments, and longitudinal stretching and compression, delivers distributed tissue compression/tension for reduced anastomotic leak and improved healing in colon. Related to U.S. Patent App. Ser. No. 13/097,891, entitled "Tissue Thickness Compensator for a Surgical Stapler Comprising an Adjustable Anvil”

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Flexibly Connected, Radial Segmented, Bio-Absorbable, Tissue Thickness Compensator for Reduced Anastomotic Leaks

A circular stapler with radial, torsional, and axial force compensating elements working with natural colon movements i.e. permits radial flexibility, twisting between segments, and longitudinal stretching and compression, delivers distributed tissue compression/tension for reduced anastomotic leak and improved healing in colon.

Related to U.S. Patent App. Ser. No. 13/097,891, entitled "Tissue Thickness Compensator for a Surgical Stapler Comprising an Adjustable Anvil"

Description:

Radially segmented, visco-elastic, bioabsorbale foam material (such as PGA/PCL: Poly glycolic acid-co-caprolactone), in disc shaped elements are used in conjunction with a surgical stapling device. The disc elements may be placed between staples and tissue.The radial segments are flexibly attached to each other via a central hole and are radially located relative to the central hole. The central hole further orients the foam elements relative to the central hub of the stapling device.

Non-segmented section of disc is axially fixed on circular stapler via central hole in the disc and the central hub of the stapler. Segments are cut free from the non-segmented section with knife when the stapler is fired.

Once cut free from the central hub, the radial segments are oriented so that at least one staple leg is fully engaged in each segment, providing a connection between the elements. The result is that the radial elements/ segments may be flexibly connected to each other via the single staple. The flexible connection creates a spring like movement between elements. Furthermore, the segments may be attached via a spring element in between segments. Where in the spring element is composed of the same material as the foam disc.

Staples provide radia...