High flow stone basket system

Details High flow stone basket system High flow stone basket system

A - Human Necessities

61

B

A61B 17/22 (2006.01) A61B 1/00 (2006.01) A61M 1/00 (2006.01)

Patent

CA 2463400

A medical device for viewing inside a body and for retrieving an object from a location within the body, the medical device comprising an endoscope (32) having a tube defining a working channel (36) and a basket (48) engageable with the object. In one embodiment of the invention, the basket (48) does not require a sheath and is disposed through the working channel such that the endoscope operates to contain or activate the sheathless basket. In another embodiment of the invention, a single push wire (66) with a collar (64) at its end is used in place of a sheath to control the opening and closing of the basket. In another embodiment of the invention, a tapered and funnel-shaped sheath (70) surrounding the basket is used to contain or activate the basket. The invention minimizes the basket crossing profile so as to improve fluid flow in the working channel.

L'invention concerne un dispositif médical d'examen intracorporel et de récupération intracorporelle d'objet, qui comprend un endoscope équipé d'un tube définissant un canal de travail et un panier de récupération d'objet. Selon une première variante, le panier est dépourvu de manchon, et placé dans le canal de travail de manière à être retenu ou activé par l'endoscope. Selon une deuxième variante, on utilise un fil de commande simple dont l'extrémité est dotée d'un collier, à la place d'un manchon, pour commander l'ouverture et la fermeture du panier. Selon une troisième variante, on utilise un manchon en forme d'entonnoir, placé autour du panier, pour retenir ou activer celui-ci. En réduisant au minimum l'extension transversale du panier, on améliore le flux de fluide dans le canal de travail.

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