Apparatus and method for developing an anatomic space for...

A - Human Necessities – 61 – B

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A61B 17/02 (2006.01) A61B 1/313 (2006.01) A61B 17/32 (2006.01) A61B 18/08 (2006.01) A61F 2/00 (2006.01) A61M 29/02 (2006.01) A61B 17/00 (2006.01) A61B 17/34 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2193975

Balloon dissector (900) and associated methods for creating an anatomic space between tissue layers in a body of a patient. A deflated balloon (926) is formed into a generally cylindrical roll and mounted on a tunneling member (915). An integral balloon cover (908) is provided for retaining the balloon (926) in the roll during insertion of the balloon and tunneling member (915) into the body and during subsequent tunneling dissection. An endoscope guide (880) is also provided that may be used in place of or in addition to the integral balloon cover (908). A laparoscope (909) can be introduced into a bore in the tunneling member (915) to permit observation of the procedure. After the balloon (926) has been advanced to the desired location in the body it is inflated through a balloon inflation lumen (919) to cause the balloon (926) to break free of the integral balloon cover (908) and/or endoscope guide (880) and progressively expand to create the anatomic space.

L'invention concerne un dissecteur à ballonnet (900) et des procédés associés permettant la création d'un espace anatomique entre des couches de tissus du corps d'un patient. Un ballonnet (926) dégonflé et roulé de façon qu'il prenne une forme générale cylindrique est monté sur un élément de creusement de sillon (915). Une gaine (908) qui recouvre complètement le ballonnet (926) maintient celui-ci à l'état enroulé pendant l'introduction du ballonnet et de l'élément de creusement de sillon (915) dans le corps du patient et pendant l'opération consécutive de dissection dont le but est le creusement d'un sillon. Un guide d'endoscope (880) peut être utilisé à la place de la gaine (908) du ballonnet ou conjointement avec celle-ci. Un laparoscope (909) peut être introduit dans l'alésage de l'élément de creusement de sillon (915) pour permettre l'observation de l'intervention. Lorsque le ballonnet (926) a été avancé jusqu'à l'emplacement désiré du corps, il est gonflé par l'intermédiaire d'un orifice de gonflage (919) de façon qu'il fasse ouvrir sa gaine (908) et/ou le guide d'endoscope (880) pour s'en libérer et augmenter progressivement de volume, créant ainsi l'espace anatomique voulu.

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