Surgical access device and method of constructing same

A - Human Necessities – 61 – B

Patent

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Details

A61B 1/32 (2006.01) A61B 1/00 (2006.01) A61B 17/00 (2006.01) A61B 17/34 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2244893

A surgical access device comprises an introduces (100) with a main endoscopic channel and an auxiliary or secondary instrument channel. The introduces exhibits an extremely narrow cross-sectional profile in order to minimize the size of the portal or other entry point necessary to gain access into the patient's body, thereby minimizing pain and discomfort to the patient and allowing a wide variety of endoscogic procedures to be performed on an out-patient basis. The narrow profile of the introduces is maintained upon introduction by a guide channel (118) which can be stored in a first position so as to closely conform to the profile of the introduces. The guide channel is provided with a set in order to maintain its stored position upon introduction; however, post introductively, the set in the guide channel can be readily realeased in order to deploy the guide channel and allow insertion of a secondary surgical instrument. The guide channel can be provided with rails or other tracks in order to ensure accurate movement at the instrument to the desired distal location. The guide channel is constructed from a thin but extremely strong and noncompliant membrane material. The present invention also comprises a method of construction and use of the surgical access device.

Le dispositif d'accès chirurgical présenté comprend un introducteur (100) composé d'un canal endoscopique principal et d'un canal auxiliaire ou secondaire destiné aux instruments. L'introducteur présente un profil extrêmement étroit en coupe transversale, afin de réduire au maximum la taille de l'orifice ou de tout point d'accès nécessaire pour pénétrer dans le corps du patient, ce qui permet de minimiser la douleur et l'inconfort pour le patient et d'effectuer une grande variété d'interventions endoscopiques sans hospitalisation. Lors de l'introduction, l'introducteur conserve son profil étroit grâce à un canal de guidage (118) qui peut être maintenu dans une première position afin d'épouser parfaitement le profil de l'introducteur. On confère au canal de guidage une certaine forme qui lui permet de garder la position refermée pendant l'introduction. Cependant, dès l'introduction terminée, le canal de guidage peut facilement reprendre sa forme pour se déployer et recevoir un instrument chirurgical secondaire. Ce canal de guidage peut être muni de rails ou de glissières quelconques afin de garantir la précision du déplacement de l'instrument jusqu'au point distal à atteindre. Le canal de guidage est constitué d'un matériau membranaire mince mais extrêmement résistant et non élastique. La présente invention concerne également un procédé de fabrication et d'utilisation de ce dispositif d'accès chirurgical.

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