Cardiac disease treatment device and method

A - Human Necessities – 61 – F

Patent

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A61F 2/00 (2006.01)

Patent

CA 2337164

A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.

Une enveloppe en matériau biocompatible présente un volume intérieur dimensionné pour qu'un apex du coeur puisse être introduit à l'intérieur du volume et que l'enveloppe puisse être glissée sur le coeur. L'enveloppe présente une dimension longitudinale entre ses extrémités supérieure et inférieure qui est suffisante pour que l'enveloppe entoure une partie inférieure du coeur, un anneau valvulaire du coeur ainsi qu'une partie inférieure afin de recouvrir au moins les extrémités inférieures ventriculaires du coeur. L'enveloppe est adaptée pour être fixée sur le coeur de manière à entourer au moins l'anneau valvulaire et les extrémités inférieures ventriculaires. L'enveloppe est ajustable sur le coeur pour épouser les contours de la géométrie extérieure du coeur et assurer un volume ajusté maximum pour que l'enveloppe limite l'expansion circonférentielle du coeur au delà du volume ajusté maximum pendant la diastole et pour permettre la contraction non entravée du coeur pendant la systole.

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