Ultrasonic device and method for tissue coagulation

A - Human Necessities – 61 – B

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A61B 18/00 (2006.01) A61B 18/18 (2006.01)

Patent

CA 2488290

An ultrasonic surgical device (10) for the coagulation of animal tissue having an ultrasonic applicator (13) and a movable jaw (15) with a jaw surface (16) adjacent the distal portion of the ultrasonic applicator (13) for movement toward the applicator (13) to a closed position at a predefined clearance (22) of between about 0.075 to about 1.9 millimeters from the applicator (13). The device (10) may also include a mechanical cutting element (20) that can be extended into the clearance to cut the tissue and means to vary the predefined clearance (22) without removing the applicator (13) from the patient. Tissue coagulating and cutting can be maximized and performed separately and can be easily monitored by the surgeon.

La présente invention a trait à un dispositif chirurgical ultrasonore pour la coagulation de tissu animal comprenant un applicateur ultrasonore et une mâchoire mobile avec une surface de mâchoire adjacente à la portion distale de l'applicateur ultrasonore pour le déplacement vers l'applicateur à une position fermée avec un dégagement prédéterminé compris entre environ 0,075 et environ 1,9 millimètres de l'applicateur. Le dispositif peut également comporter un élément de coupe mécanique qui peut se prolonger dans le dégagement pour découper le tissu et des moyens pour faire varier le dégagement prédéterminé sans le retrait de l'applicateur du patient. La coagulation et la découpe de tissu peuvent être optimisées et effectuées séparément et peuvent être facilement contrôlées par le chirurgien.

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