Surgery – Endoscope – With guide means for body insertion
Patent
1997-06-23
1999-02-23
Leubecker, John P.
Surgery
Endoscope
With guide means for body insertion
600127, 600135, 604208, A61B 101
Patent
active
058738150
ABSTRACT:
A method and apparatus are provided for imaging a narrow body lumen, the method comprising maintaining separation between a distal end of an optical viewing scope and a lumen wall with a spacing structure which extends distally from the distal end of an access catheter. Optional spacing structures include distal cages and a guidewire which is fixed to and extends distally from the access catheter body. The invention is beneficial during either retrograde imaging of the fallopian tube, and also allows antigrade imaging and advancing the access catheter and scope under the direction of the image provided, as it prevents the tubal wall from coming into such close proximity to a falloposcope as to produce "white-out" on the imaging monitor.
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Kerin et al., "Falloposcopy: A Microendoscopic Technique for Visual Exploration of the Human Fallopian Tube form the Uterotubal Ostium to the Fimria Using a Transvaginal Approach, " Fertility and Sterility, vol. 54, No. 3, pp. 390-400 (1990).
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Doty James
Hill Richard
Kerin John
Kramer Tom
Milo Charles
Conceptus, Inc.
Leubecker John P.
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