Hydraulically actuated multiband ligator

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/12 (2006.01) A61B 17/00 (2006.01) A61B 17/28 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2258253

A hydraulic multiple ligating band dispenser comprises a body whose distal portion is adapted to support the elastic ligating bands. A tissue contacting surface is disposed surrounding and spaced from the distal portion so as to define a chamber. A seal slidably mounted on the distal portion is shaped to seal the chamber, to which a proximally situated fluid inlet is coupled. By these means pressurized fluid applied to the fluid inlet causes the seal to slide in a distal direction along the distal portion in order to urge the ligating bands distally and to dispense them serially.

Un distributeur hydraulique d'une bande de ligature multiple comprend un corps dont la partie distale est adaptée pour supporter les bandes élastiques de ligature. Une surface en contact avec les tissus est disposée autour de la partie distale et espacée par rapport à celle-ci afin de définir une chambre. Un joint d'étanchéité monté coulissant sur la partie distale est configuré pour fermer hermétiquement la chambre à laquelle un dispositif d'entrée de fluide est couplé. Grâce à ces moyens, le fluide pressurisé appliqué au dispositif d'entrée provoque le coulissement du joint hermétique dans une direction distale le long de la partie distale et a pour conséquence de solliciter distalement les bandes de ligature et de les distributer en série.

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