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Multi-angled duckbill seal assembly

A technology of sealing components and components, which is applied in the field of trocars, and can solve the problems of local bending and tearing, tearing, and easy local bending of duckbill-shaped sealing components

Active Publication Date: 2008-04-02
ETHICON ENDO SURGERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that the portion of the wall next to the central flange of the current duckbill seal assembly is prone to localized bending, which can cause tearing when the instrument contacts the seal assembly at an angle approaching 90 degrees
This means that the duckbill seal assembly is more likely to locally bend and tear where the trocar filler or other insertion tool contacts the duckbill seal assembly at an angle of approximately 90 degrees

Method used

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  • Multi-angled duckbill seal assembly
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Embodiment Construction

[0039] Detailed embodiments of the present invention are disclosed herein. It is to be understood, however, that the disclosed embodiments are merely exemplary of the invention, which may be practiced in various ways. Therefore, nothing disclosed herein is to be interpreted as limiting, but merely as a basis for the claims and as a basis for teaching one skilled in the art how to make and / or use the invention.

[0040] Disclosed herein is a duckbill seal assembly according to the present invention that improves tear resistance by changing the wall angle as the seal extends from its proximal end to its distal end. Those skilled in the art must be able to understand that the duckbill-shaped sealing assembly can be applied to various trocar assemblies without departing from the spirit of the present invention.

[0041] Referring to FIGS. 1-5 , trocar assembly 10 generally includes a trocar cannula 12 , a trocar filler 14 , and a trocar housing (or handle) 16 . Trocar cannula 12...

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Abstract

A seal assembly for use in conjunction with a trocar assembly includes a seal body adapted for movement for selectively opening and substantially completely closing the seal assembly. The seal assembly includes a longitudinal axis extending therethrough with a transverse plane substantially perpendicular thereto. The seal body includes a proximal end and a distal end, the proximal end making a first angle with respect to the transverse plane and the distal end making a second angle with respect to the transverse plane, wherein the first angle is less than the second angle.

Description

[0001] Referenced related application [0002] This application is based on pending US Provisional Patent Application No. 60 / 506,729, filed September 30, 2003, entitled "multi-angled duckbill seal assembly." technical field [0003] The present invention relates to trocars, and more particularly to a multi-angled duckbill seal assembly for a trocar. Background technique [0004] A trocar assembly is a surgical instrument used to gain access to a body cavity. A trocar assembly typically consists of two main components, a trocar sleeve and a trocar, consisting of a trocar housing and a trocar sleeve. stuffer. A trocar filler is inserted through the trocar cannula, and the trocar cannula is guided through the skin into a body cavity. Once the body cavity has been accessed, laparoscopic or arthroscopic surgical and endoscopic procedures can be performed. To penetrate the skin, the distal end of the trocar cannula is placed against the skin previously incised with a scalpel, a...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61M39/00A61M39/06
Inventor A·C·沃格尔M·S·克罗珀D·K·诺尔维尔
Owner ETHICON ENDO SURGERY INC