Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1994-01-31
1996-07-23
Weiss, John G.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604164, 606167, 606172, A61M 2506
Patent
active
055385095
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 A site stabilizer which can be used with the trocar to prevent the cannula from being inadvertently withdrawn from the body cavity during a surgical procedure is also disclosed.
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Dunlap David A.
Medema Douglas J.
Melling Hugh
Zerfas Jeffrey W.
Richard-Allan Medical Industries, Inc.
Weiss John G.
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