Surgery – Instruments – Blunt dissectors
Patent
1995-10-13
1998-03-17
Dawson, Glenn K.
Surgery
Instruments
Blunt dissectors
600207, A61M 2900, A61B 1700
Patent
active
057281190
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, is transparent and either rigid or non-rigid but sufficiently strong to retain a desired optical shape while 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 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. In use, the distal end of a long-necked dissection balloon is inserted between tissue layers and inflated to dissect the tissue layers.
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Chin Albert K.
Gresl Charles
Hlavka Edwin J.
Lunsford John P.
Smith Jeffrey A.
Dawson Glenn K.
Origin Medsystems Inc.
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