05749889 is referenced by 457 patents and cites 38 patents.

A surgical access device and method are provided for endoscopic surgeries comprising biopsies or other surgical cutting procedures. The device generally comprises a substantially rigid first channel associated with a first port and a second channel associated with a second port of a proximal housing. The first or main channel extends to a curved distal end of the device, and the second channel is connected to a guide channel extending tangential to the main channel. The guide channel comprises substantially noncompliant material and has a pre-insertion position such that a cross-section of an inserted portion of the device is substantially the same as a cross-section of the main channel. A preferred method of the present invention includes the use of an open-loop device formed at a distal tip of an introducer and an aspiration tube during the location, excision and removal of one or more tissue specimens.

Title
Method and apparatus for performing biopsy
Application Number
8/600608
Publication Number
5749889
Application Date
February 13, 1996
Publication Date
May 12, 1998
Inventor
Tuoc Nguyen
Westminster
CA, US
Hien Nguyen
Santa Ana
CA, US
John P Greelis
Aliso Viejo
CA, US
Steven R Bacich
Laguna Niguel
CA, US
Agent
Knobbe Martens Olson & Bear
Assignee
Imagyn Medical
CA, US
IPC
A61M 5/00
A61M 5/32
A61M 5/178
A61M 29/00
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