Surgery – Instruments – Internal pressure applicator
Patent
1994-06-29
1997-03-04
Dawson, Glenn
Surgery
Instruments
Internal pressure applicator
600207, A61M 2900
Patent
active
056074433
ABSTRACT:
An expansible laparoscopic tunneling apparatus for creating an anatomic working space. The apparatus provides laparoscopic observation both during tunneling operations, when the apparatus is advanced bluntly to a desired location within the body of a patient, and during subsequent tissue dissection when a balloon associated with the apparatus is inflated to create the working space. In a preferred embodiment, the apparatus comprises a hollow tunneling member and an inflatable balloon disposed at the distal end of the tunneling member to cooperatively form a blunt tipped obturator. The tunneling member has a bore sized to accept a conventional laparoscope, and a blunt distal end to facilitate tunneling. A trocar can be inserted into the incision to provide access back to the previously created space where the surgical procedure is to be performed. The apparatus is prepared for use by inserting the tunneling member into the interior of the balloon, forming the balloon into a generally cylindrical roll about the tunneling member, and preferably, through the use of an integral balloon cover, securing the balloon roll to the tunneling member wherein the combination of the tunneling member and rolled balloon forms a semi-rigid blunt tipped obturator. A horseshoe shaped balloon for dissecting around obstructions within the body is also disclosed.
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Echeverry Jan M.
Hermann George D.
Howell Thomas A.
Jervis James E.
Kieturakis Maciej J.
Dawson Glenn
General Surgical Innovations Inc.
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