Transmyocardial implant

Details Transmyocardial implant Transmyocardial implant

A - Human Necessities

61

F

A61F 2/06 (2006.01) A61B 17/11 (2006.01) A61B 17/00 (2006.01) A61B 17/04 (2006.01) A61F 2/00 (2006.01) A61F 2/02 (2006.01)

Patent

CA 2341521

A transmyocardial implant establishes a blood flow path through a myocardium between a heart chamber and a lumen of a coronary vessel residing on an exterior of the heart. The implant (10) includes a coronary portion (12) sized to be received within the vessel. A myocardial portion (14) is sized to pass through the myocardium into the heart chamber. A transition portion (13) connects the coronary (12) and myocardial (14) portions for directing blood flow from the myocardial portion (14) to the coronary portion (12). The coronary portion (12) and the myocardial portion (14) have an open construction for permitting tissue growth across a wall thickness of the coronary portion (12) and the myocardial portion (14). The myocardial portion (14) includes an agent for controlling a coagulation cascade and platelet formation.

La présente invention concerne un implant transmyocardiaque qui permet d'établir un passage pour le flux sanguin au travers d'un myocarde, entre une cavité cardiaque et un vaisseau coronaire situé à l'extérieur du coeur. L'implant (10) comprend, d'une part un segment coronaire (12) calibré pour être reçu à l'intérieur du vaisseau, et d'autre part un segment myocardiaque (14) calibré pour traverser le myocarde et pénétrer dans la cavité cardiaque. Une zone de transition (13) relie le segment coronaire (12) au segment myocardiaque (14) de façon à faire passer le sang du segment myocardiaque (14) au segment coronaire (12). Le segment coronaire (12) et le segment myocardiaque (14) possèdent une construction ouverte de façon à permettre une croissance tissulaire dans l'épaisseur de paroi du segment coronaire (12) et du segment myocardiaque (14). Le segment myocardiaque (14) inclut un agent contrecarrant la coagulation en cascade et la formation de plaquettes.

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