Methods and apparatus for transmyocardial direct coronary...

A - Human Necessities – 61 – M

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A61M 1/12 (2006.01) A61B 17/00 (2006.01) A61F 2/06 (2006.01) A61F 2/24 (2006.01) A61B 17/11 (2006.01) A61F 2/00 (2006.01) A61F 2/02 (2006.01)

Patent

CA 2284720

Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vesel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.

L'invention concerne des procédés et un appareil pour la revascularisation coronarienne directe dans laquelle un passage transmyocardique est formé entre une chambre du coeur et un vaisseau sanguin coronaire de sorte que le sang puisse s'écouler entre les deux. Dans certains modes de réalisation, le passage transmyocardique est formé entre une cavité du coeur et une veine coronaire. L'invention porte sur des passages transmyocardiques sans extenseurs ainsi que sur des passages transmyocardiques dans lesquels des dispositifs extenseurs saillants s'étendent depuis le passage transmyocardique jusque dans un vaisseau coronaire ou une cavité du coeur. L'appareil de l'invention comporte des dispositifs extenseurs saillants permettant l'extension des passages transmyocardiques, des dispositifs à valvules à placer dans les passages transmyocardiques, des dispositifs à valvules intracardiaques à placer dans les passages transmyocardiques, des valvules tissulaires endogènes à placer dans les passages transmyocardiques et un appareil auxiliaire à utiliser conjointement avec ces dispositifs.

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