Expansible tunneling apparatus for creating an anatomic working

Details Expansible tunneling apparatus for creating an anatomic working Expansible tunneling apparatus for creating an anatomic working

1994-10-17

1996-03-05

Pellegrino, Stephen C.

Surgery

Instruments

Internal pressure applicator

604 96, 600204, 600207, A61B 1900

Patent

active

054963451

ABSTRACT:
An expansible tunneling apparatus for tunneling bluntly to a desired location within the human body and for creating an anatomic working space for the performance of a surgical procedure by utilizing an inflatable balloon to dissect tissue along natural separation planes once the desired space has been reached. In a disclosed embodiment, a tubular member has a bore extending therethrough to provide an open distal end. A rigid tunneling shaft is insertable into the bore of the tubular member to provide a blunt tipped obturator. A balloon associated with the apparatus is disposed such that it surrounds the tunneling shaft when the balloon is deflated, as it would be when tunneling bluntly through tissue. A sheath surrounds the balloon and has a weakened region that permits the sheath to be released thereby permitting the balloon to expand to dissect tissue layers and create the anatomic working space. A balloon inflation lumen may be utilized to supply an appropriate balloon inflation medium to inflate the balloon.

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