Cystoscope delivery system

Details Cystoscope delivery system Cystoscope delivery system

A - Human Necessities

61

B

A61B 1/307 (2006.01) A61F 2/06 (2006.01)

Patent

CA 2203122

This invention concerns a cystoscope delivery system for implanting a flexible, generally cylindrical, expandable stent (10). The system comprises a rigid or flexible sheath (2), said sheath defining a central lumen (6) and at least one secondary lumen (27) extending therethrough having two openings extending from a secondary lumen (27) radially to the surface of the sheath (2), a rigid cystoscope (19) comprising a distal scope member (20) extending through the central lumen (6) and a proximal viewing head (3), a stent (10) positioned circumferentially around said sheath (2), at least one release wire (34) extending through said secondary lumen or lumens (27), and two or three restraining means (36), two of which are positioned and extending over the respective ends of the stent (10) to hold the stent (10) in position, so that when the release wire or wires (34) are pulled proximally, one or both ends of the stent (10) are released from the restraining members to permit the stent (10) to expand.

L'invention concerne un système cytoscopique d'implantation d'un extenseur souple, généralement cylindrique et dilatable (10). Ce système comprend une gaine rigide ou souple (2) définissant une lumière centrale (6) et au moins une lumière secondaire (27) s'étendant à travers la longueur de ladite gaine possédant deux ouvertures s'étendant depuis ladite lumière secondaire (27) dans un sens radial vers la surface de ladite gaine (2), un cytoscope rigide (19) comprenant un élément cytoscopique distal (20) s'étendant à travers la lumière centrale (6) et une tête de visualisation proximale (3), un extenseur (10) placé autour de la circonférence de ladite gaine (2), au moins un fil de libération (34) s'étendant à travers ladite ou lesdites lumière(s) secondaire(s) (27) et deux ou trois moyens de retenue (36), dont deux sont placés et s'étendent au-dessus des extrémités respectives de l'extenseur (10), afin de le maintenir en position, de sorte que, quand le(s) fil(s) de libération (34) sont tirés de façon proximale, une ou les deux extrémités de l'extenseur (10) sont libérées des éléments de retenue, afin de permettre la dilatation de l'extenseur (10).

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