Ligating band delivery apparatus

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/12 (2006.01)

Patent

CA 2430731

A apparatus (10) is disclosed that is adapted for delivery of a multiplicity of pre-loaded ligating bands (17) within patient, such as to treat hemorrhoidal tissue. The apparatus comprises a delivery member (11) that includes a tissue receiving chamber (31) at the distal end (21) that communicates with a passageway (22) that represents part of the main suction pathway (39) that connects with a suction means. The proximal portion (61) of the apparatus includes an actuating mechanism (32) that is operatively connected to one or more band carrier elements (15), such as strands (59) with bead-like retainers (20), which receive and urge the ligating bands over the delivery member for deployment. The actuating mechanism and suction actuating inferface (40) are configured such that they can be controlled while the operator retains the other hand for another operation, such as to manipulate an anoscope. In one embodiment, the proximal portion includes a pistol-shaped grip portion (33), while the actuating mechanism comprises a knurled wheel (70).

L'invention concerne un appareil (10) conçu pour mettre en place une multiplicité de bandages à ligatures préchargés (17) chez un patient, afin de traiter, par exemple, du tissu hémorroïdal. L'appareil comprend un élément de distribution (11) comportant, à l'extrémité distale (21), une chambre de réception de tissu (31) communiquant avec un passage (22) représentant une partie de la voie d'aspiration principale (39) reliée à des moyens d'aspiration. La portion proximale (61) de l'appareil comprend un mécanisme d'actionnement (32) connecté, de manière opératoire, à un ou plusieurs éléments supports de bandages (15), tels que des fils (59) avec des arrêts en forme de bille (20), qui reçoivent et forcent les bandages à ligature sur l'élément de distribution aux fins de déploiement. Le mécanisme d'actionnement et l'interface d'aspiration (40) sont conçus de telle façon qu'ils puissent être commandés alors que l'autre main de l'opérateur est occupée à une autre fonction, par exemple de manipulation d'un anoscope. Dans une réalisation, la portion proximale comprend une partie en forme de poignée de revolver (33), le mécanisme d'actionnement comprenant une roue moletée (70).

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