Apparatus and method for accessing the pericardial space

Details Apparatus and method for accessing the pericardial space Apparatus and method for accessing the pericardial space

A - Human Necessities

61

B

A61B 17/28 (2006.01) A61B 17/34 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2273948

There is provided an apparatus and a method of using the apparatus for creating a bleb of tissue of the pericardium of the heart, for accessing the pericardial space, intermediate the pericardium and the heart, and withdrawing fluid therefrom or delivering fluid, including drugs, therapeutic agents, or the like, thereto. The apparatus of the present invention includes a shaft with a first distal end and a second proximal end. A bore extends through the shaft from the distal end to the proximal end. The first end includes jaws, that open and close, as at least one of the jaws is movable. The second end includes a handle, at least a portion of the handle in communication with a mechanism in communication with the movable jaw, such that upon movement of at least a portion of the handle, the jaws can be opened and closed continuously. A needle, for puncturing the bleb of tissue grasped within the jaws, is movably mounted within the bore and is in communication with a mechanism for limiting its travel with respect to the bore.

L'invention a trait à un appareil, ainsi qu'à la technique correspondante, permettant de former une boursouflure dans le tissu péricardique et ce, afin d'accéder à l'espace péricardique, intermédiaire entre le péricarde et le coeur, pour retirer ou introduire un fluide, des médicaments, des agents thérapeutiques ou analogue. L'appareil de l'invention comporte une tige ayant une extrémité distale et une seconde extrémité proximale, qu'un alésage traverse, de l'extrémité distale à l'extrémité proximale. La première extrémité est pourvue de mâchoires, s'ouvrant et se fermant, l'une d'elles au moins étant mobile. La seconde extrémité est pourvue d'un organe de commande, dont un élément au moins est en communication avec la mâchoire mobile, de telle sorte que le mouvement d'au moins un élément de l'organe de commande fait que les mâchoires s'ouvrent et se ferment sans interruption. Une aiguille, destinée à perforer la boursouflure de tissu prise dans les mâchoires, loge, de manière à pouvoir se déplacer, dans l'alésage et est tributaire d'un mécanisme servant à limiter son déplacement relativement audit alésage.

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