Trocar assembly - Patent Review 5538509

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Trocar assembly

United States Patent

5538509

Link to this page

http://www.wikipatents.com/5538509.html

Inventor(s)

Dunlap; David A. (Portage, MI); Medema; Douglas J. (Plainwell, MI); Melling; Hugh (Richland, MI); Zerfas; Jeffrey W. (Grandville, MI)

Abstract

A trocar for use in surgical procedures including a cannula for maintaining a sealed working channel in a body wall and an obturator which creates the working channel through the body wall while protecting patients and medical personnel from harm is disclosed. A cannula converter which can be employed with the trocar to enable a surgeon to use surgical instruments having a smaller outer diameter than the inner diameter of the cannula without deflating a body cavity is further disclosed. A site stabilizer which can be used with the trocar to prevent the cannula from being inadvertently withdrawn from the body cavity during a surgical procedure is also disclosed.

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