Pressure-controlled continuous coronary sinus occlusion...

Details Pressure-controlled continuous coronary sinus occlusion... Pressure-controlled continuous coronary sinus occlusion...

A - Human Necessities

61

M

A61M 25/00 (2006.01) A61B 17/12 (2006.01)

Patent

CA 2368163

Apparatus, and methods for perfusing ischemic myocardium are provided using a tubular member (12) having an end region (16) adapted to be disposed in a portion of a patient's venous vasculature. The end region (16) includes a lumen (20), and a valve (24) in communication with the lumen (20) that controls pressure within an occluded portion of the vasculature by venting excess blood at a location proximal of a point of occlusion of the vasculature via the valve (24). An occlusion element (26) optionally may be provided in the end region (16) that retains the tubular member (12) within the patient's venous vasculature, and occludes the flow of blood around the lumen (20).

L'invention concerne un appareil et des procédés permettant de perfuser le myocarde ischémique à l'aide d'un élément tubulaire (12) pourvu d'une zone d'extrémité (16) conçue pour être placée dans une partie du système vasculaire veineux d'un patient. La zone d'extrémité (16) comprend une lumière (20), et une valve (24) communicant avec la lumière (20) qui régule la pression à l'intérieur d'une partie occlue du système vasculaire en enlevant l'excès de sang à un emplacement proximal d'un point de l'occlusion du système vasculaire par l'intermédiaire de la valve (24). Cette invention a trait également à un élément d'occlusion (26), que l'on peut facultativement placer dans la zone d'extrémité (16) qui retient l'élément tubulaire (12) à l'intérieur du système vasculaire veineux du patient, et qui bloque le flux sanguin autour de la lumière (20).

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