Multifunctional instrument with interchangeable operating...

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/04 (2006.01) A61B 10/00 (2006.01) A61B 17/12 (2006.01) A61B 17/122 (2006.01) A61B 17/128 (2006.01) A61B 17/28 (2006.01) A61B 17/32 (2006.01) A61B 17/34 (2006.01) A61B 18/14 (2006.01) A61B 17/00 (2006.01) A61B 17/30 (2006.01) A61M 1/00 (2006.01)

Patent

CA 2210663

An endoscopie instrument includes a forceps unit (11) for being positioned within an anatomical cavity and a removable operating unit (13). The forceps unit includes a housing (12), an outer tubular member (14), an intermediate member (16), and a handle mechanism (24,26) coupled with at least one of the intermediate and outer tubular members for creating relative movement between the intermediate and outer tubular members. The outer tubular member has a proximal end mounted by the housing and terminates distally at a distal end. The intermediate member has a tubular body disposed telescopically within the outer tubular member, a proximal end mounted by the housing and an integral one-piece distal end defining a pair of opposed jaws (18, 20) resiliently biased apart such that relative movement of the outer tubular member distal end over the jaws causes the jaws to close. The operating unit includes a hub (33) mounting an inner tubular member removably disposed at least partly within the intermediate member and carrying operating members for performing at least one of the functions of cutting, grasping,manipulating,disecting, collecting tissue for biopsy, penetrating tissue with a needle, injecting fluids, creating suction,aspirating, irrigating, suturing, ligating, visualizing,illuminating and cauterizing.

L'invention porte sur un instrument endoscopique comprenant un dispositif à pinces (11) destiné à s'introduire dans une cavité corporelle et un appareillage opératoire amovible (13). Le dispositif à pinces comporte un boîtier (12), des éléments tubulaires extérieur (14) et intermédiaire (16) ainsi qu'un mécanisme de manipulation (24, 26) en relation avec au moins l'un des éléments tubulaires, intermédiaire et extérieur, afin d'imprimer un mouvement relatif entre ces derniers. L'élément tubulaire extérieur, contenu par le boîtier sur son extrémité proximale, se termine sur son extrémité distale, à l'opposé. L'élément intermédiaire, dont le corps tubulaire coulisse à l'intérieur de l'élément tubulaire extérieur, est contenu par le boîtier sur son extrémité proximale. Il possède une extrémité distale montée d'une seule pièce, constituant une paire de mâchoires en opposition (18, 20) qu'écarte un effet de ressort, de sorte qu'un mouvement relatif de l'extrémité distale de l'élément tubulaire extérieur sur celles-ci les fait se refermer. L'appareillage opératoire, qui comprend un moyeu (33) renfermant un élément tubulaire intérieur, placé de façon amovible, et, au moins partiellement, dans l'élément tubulaire intermédiaire, comporte des organes opératoires susceptibles d'effectuer l'une au moins des fonctions suivantes: couper, saisir, manipuler, disséquer, recueillir un tissu en vue d'une biopsie, s'y introduire au moyen d'une aiguille, injecter des fluides, obtenir un effet de succion, aspirer, irriguer, suturer, ligaturer, visualiser, éclairer et cautériser.

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