Insertion and tunneling tool for a subcutaneous wire patch...

A - Human Necessities – 61 – B

Patent

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A61B 17/00 (2006.01) A61N 1/05 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2070514

A tool for subcutaneously implanting a subcutaneous electrode comprising several wire patch electrode segments by way of a single surgical incision. The tunneling tool comprises a stylet and a peel-away sheath. The tunneling tool is inserted into an incision, in a direction which corresponds to the desired placement of an electrode segment. Once the tunneling tool reaches a desired position, the stylet is withdrawn, thereby revealing the interior of the peel-away sheath and a resulting subcutaneous tunnel. The corresponding electrode segment is then inserted into this subcutaneous tunnel, and subsequently implanted in the patient. The implantation procedure is then repeated as many times as is necessary, using the same incision, until all the electrode segments for the particular electrode configuration have been implanted. In addition, the tunneling tool can be adapted to conform to varying electrode segment sizes, which thereby allows the tool to conform to the varying needs of each individual patient. As an even further feature, the tunneling tool can be constructed in a curved configuration to facilitate electrode implantation in the lateral thoracic region of the body.

Instrument pour l'implantation sous-cutanée d'électrodes par une seule et même incision. L'instrument de cette invention comprend un stylet et un fourreau pelable. L'instrument est inséré dans l'incision, dans le sens où l'électrode doit être placée. Lorsqu'il est dans la position voulue, le stylet est retiré, laissant en place le fourreau qui sert alors de conduit sous-cutané. L'électrode est alors insérée dans ce conduit, puis implantée dans le corps du patient. Cette opération est répétée, toujours à partir de la même incision, le nombre de fois nécessaire pour la configuration à réaliser. L'instrument peut être utilisé pour implanter des électrodes de grosseurs différentes, selon le cas particulier. Il peut aussi être de forme courbe pour faciliter l'implantation d'électrodes dans le côté du thorax.

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