Apparatus and method for marking tissue

A - Human Necessities – 61 – B

Patent

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Details

A61B 19/00 (2006.01) A61K 49/00 (2006.01) A61B 10/00 (2006.01) A61B 17/28 (2006.01)

Patent

CA 2262550

An implantable marking device is provided which is designed to percutaneously deliver permanent markers to desired tissue locations within a patient's body, even if the desired locations are lateraly disposed relative to the distal end of the delivery device, as is the case for conduit or cavity walls. This provides several advantages to the physician in diagnosis and management of tissue abnormalities, such as a means of localization of a tissue abnormality for follow-up surigical treatment, and a means of tissue abnormality site identification for purposes of ongoing diagnostic follow-up. In one preferred construction, a radiographic clip is configured in the form of a surgical staple. A disposable tissue marker applier, which comprises a flexible tube, pull wire, and squeeze handle, is employed to advance and deploy the clip to a desired tissue location. Either a flexible or a rigid introducer is also provided for providing access to the site to be marked.

L'invention porte sur un dispositif implantable de marquage de tissus permettant de mettre en place par voie percutanée des marqueurs permanents en des points désirés de tissus à l'intérieur du corps d'un patient et cela même si lesdits points sont situés latéralement par rapport à l'extrémité distale du dispositif de mise en place, comme c'est le cas pour les parois de conduits ou de cavités. Ce dispositif présente plusieurs avantages pour le praticien relativement au diagnostic ou à la gestion des anomalies tissulaires notamment pour la localisation d'une anomalie tissulaire lors de traitements faisant suite à un acte chirurgical, et comme moyen d'identification des sites présentant des anomalies tissulaires pendant la période d'observation d'un diagnostic en cours. Dans l'une des réalisations préférées, la pince radiographique a la forme d'une agrafe chirurgicale. On utilise un applicateur de marqueurs tissulaires jetable comportant un tube souple, un fil de traction, une poignée pressable pour avancer et déposer la pince en un point choisi du tissu. Il est également prévu un introducteur souple ou rigide qui permet d'accéder au site à marquer.

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