Surgery – Instruments – Blunt dissectors
Patent
1996-01-05
1998-07-14
Dawson, Glenn K.
Surgery
Instruments
Blunt dissectors
606192, 600207, A61B 1700
Patent
active
057797285
ABSTRACT:
An apparatus for tissue dissection and instrument anchoring, including a dissection balloon having a viewing window (preferably a rigid, transparent window) at its distal end, or including an anchoring or dissection balloon having nonuniform elasticity selected to achieve desired inflated shape and pressure characteristics, and methods for using such apparatus. The window, which can be a lens (such as a wide angle lens), is transparent and either rigid or non-rigid but sufficiently strong to retain a desired optical shape while (and after) being pushed against tissue layers by a rigid instrument deployed within the balloon. In preferred embodiments, the balloon is a long-necked dissection balloon deployed through a cannula. In other embodiments, the invention is a dissection balloon having a viewing window at its distal end, or an anchoring or dissection balloon having nonuniform elasticity selected to achieve desired inflated shape and pressure characteristics, for use in an apparatus for tissue dissection, tissue retraction, and instrument anchoring. In other embodiments, the invention is a dissection balloon assembly including a long-necked dissection balloon having a viewing window at its distal end, and a housing to which the dissection balloon's mouth is attached.
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Chin Albert K.
Gresl Charles
Lunsford John P.
Smith Jeffrey A.
Wallace Daniel T.
Dawson Glenn K.
Origin Medsystems Inc.
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