Access device maintenance apparatus and method

A - Human Necessities – 61 – B

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A61B 17/32 (2006.01) A61B 17/28 (2006.01) A61M 5/00 (2006.01)

Patent

CA 2499173

A trocar (10) includes a valve housing (25) and cannula (16) which define a working channel. A valve (36) disposed in the valve housing (25) along the working channel includes a gel material which defines a slit (75) that functions as a zero seal in the absence of an instrument, and an instrument seal in the presence of an instrument. The slit (75) is formed by mating gel components (38, 41) which are preferably separated during storage of the device. This separation can be facilitated by a pull strip (90) which can be pre-lubricated and inserted into the slit (75) for ultimate removal prior to activation of the trocar (10).

Selon l'invention, un trocart comprend un logement de valve et une canule qui définissent un canal opérateur. Une valve disposée dans le logement de valve, le long du canal opérateur, comprend un gel qui définit une fente fonctionnant comme une étanchéité zéro en l'absence d'un instrument et comme une étanchéité d'instrument en présence d'un instrument. Pour former la fente, on accouple des composants de gel qui sont, de préférence, séparés pendant le stockage du dispositif. Cette séparation peut être facilitée par une languette qui peut être préalablement lubrifiée et insérée dans la fente afin d'être retirée avant l'activation du trocart.

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