Cannula for receiving surgical instruments

Details Cannula for receiving surgical instruments Cannula for receiving surgical instruments

2005-01-04

2005-01-04

Woo, Julian W. (Department: 3731)

Surgery

Instruments

Means for inserting or removing conduit within body

C604S164050

Reexamination Certificate

active

06837891

ABSTRACT:
A cannula (10) receives surgical instruments (120) for performing a surgical procedure on a body (130). The cannula (10) comprises a tube structure (12) defining a passage (16) through which the surgical instruments (120) are inserted into the body (130). The tube structure (12) has a proximal end (20) and a distal end (62). The tube structure (12) includes an expandable portion (40) for enabling an increase in the cross-sectional area of the passage (16) at the distal end (62). The expandable portion (40) of the tube structure (12), when expanded, has a conical configuration.

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