Endoscopic band ligator

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/04 (2006.01)

Patent

CA 2497864

The present invention provides a ligating band dispenser (10) that is mounted on the distal end of an endoscope. The ligator is configured to deliver multiple Ligating bands (34) to a plurality of internal sites in a patient. The ligating bands are carried on a tubular band carrier (22) member that is retractable relative to the distal end of the endoscope in order to preserve visibility through the endoscope during navigation, then extendable to define a suction chamber for tissue aspiration during band delivery. A tubular band driver (24) member is slidable over the band carrier member and engages bands individually to push them off the distal end of the band carrier and onto a selected treatment site. A single-hand operated control handle for selectively operating the extension of the band carrier and movement of the band driver to release a band is also provided and is slidably and removably mounted to the endoscope shaft.

L'invention concerne un distributeur de bande de ligature monté sur l'extrémité distale d'un endoscope. Le ligateur est conçu de manière à délivrer de multiples bandes de ligature à plusieurs sites internes d'un patient. Les bandes de ligature sont placées sur un élément support de bande tubulaire pouvant être rétracté par rapport à l'extrémité distale de l'endoscope afin de préserver la visibilité à travers l'endoscope durant la navigation, puis déployé afin de définir une chambre d'aspiration servant à aspirer les tissus lors du placement de la bande. Un élément conducteur de bande tubulaire peut être coulissé sur l'élément support de bande et couple des bandes de façon individuelle en vue de les pousser hors de l'extrémité distale du support de bande vers un site de traitement choisi. L'invention concerne également une poignée de commande actionnée par une seule main destinée à actionner de façon sélective l'extension du support de bande et le mouvement du conducteur de bande afin de libérer une bande et est monté coulissant et amovible sur la tige de l'endoscope.

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