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Improved trocar housing/stop-cock assembly.

A technology of trocar and piston valve, applied in the field of trocar

Active Publication Date: 2008-09-10
ETHICON ENDO SURGERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of connecting the piston valve and trocar cannula to the cannula housing requires quite a few steps

Method used

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  • Improved trocar housing/stop-cock assembly.
  • Improved trocar housing/stop-cock assembly.
  • Improved trocar housing/stop-cock assembly.

Examples

Experimental program
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Embodiment Construction

[0037] 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.

[0038] An attachment structure for securing a piston valve to a trocar sleeve is disclosed for mechanically coupling the piston valve to the trocar sleeve. Those skilled in the art must be able to understand that the basic principles of the present invention can be applied to various trocar assembly structures without departing from the spirit of the present invention.

[0039] 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 defines a lumen 18 having an o...

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PUM

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Abstract

A trocar sleeve includes a trocar cannula and a trocar housing having a housing member base and a housing member cover. The trocar cannula and trocar housing are mechanically interfitted to form a trocar sleeve, wherein at least a portion of the trocar cannula sits within the housing member base with the housing member cover sitting over the trocar cannula for securing the at least a portion of the trocar cannula within the housing member base. The trocar sleeve also includes a stop-cock valve mechanically interfitted between the trocar cannula and the trocar housing.

Description

[0001] This application is a divisional application of the invention patent application (original application) whose application date is September 30, 2004 and whose application number is 200410092186.4. [0002] Related applications referenced by the original application [0003] The original application is based on pending US Provisional Patent Application No. 60 / 506,783, filed September 30, 2003, entitled "Improved Trocar Housing / Piston Valve Assembly." 1. Technical field [0004] The invention relates to a trocar, in particular to a piston valve structure for a trocar. 2. Background technology [0005] 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B19/00A61M39/00
Inventor B・汤普森M・蔡纳T・吉尔克D・杜克
Owner ETHICON ENDO SURGERY INC