Surgical access device with pendent valve

Details Surgical access device with pendent valve Surgical access device with pendent valve

A - Human Necessities

61

B

A61B 17/34 (2006.01) A61M 5/178 (2006.01)

Patent

CA 2499085

A surgical access device, such as a trocar (10), includes a pendent valve (40) having an elongate structure (50) extending from a proximal end to a septum valve (56) disposed at a distal end. In operation, the elongate structure (50) follows the angle of the instrument (21) to pre-position the septum valve (56) into the path of the instrument (21) where it is not significantly challenged during instrument insertion or manipulation. The pendant valve (40) can be made to float at both the proximal end and the distal end of the elongate structure (50), to further reduce the vulnerability of the septum valve (56). Since the valve (56) is less vulnerable to instrument insertion (21), it can be formed to minimize friction and maximize the functional range of the access device.

Cette invention concerne un dispositif d'accès chirurgical, tel qu'un trocart (10), comprenant une soupape pendante (40) avec structure de forme allongée (50) disposée entre une extrémité proximale et une soupape à membrane (56) implantée sur l'extrémité distale. Pendant l'emploi, la structure de forme allongée (50) épouse l'angle de l'instrument (21) pour le prépositionnement de la soupape à membrane (56) dans le chemin de l'instrument (21), chemin dans lequel elle est relativement à l'abri pendant l'insertion ou la manipulation de l'instrument. Il est possible de laisser flotter La soupape pendante (40) à l'extrémité proximale et à l'extrémité distale de la structure de forme allongée (50), ce qui atténue encore la vulnérabilité de la soupape à membrane (56). Comme cette soupape (56) est moins exposée pendant l'insertion de l'instrument (21), on peut lui donner une forme qui réduit les frottements et maximise la plage fonctionnelle du dispositif d'accès.

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