Reconfiguring heart features

A - Human Necessities – 61 – F

Patent

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A61F 2/24 (2006.01)

Patent

CA 2756028

Among other things, a heart tissue support has gripping elements, each element having a free end that is sharp enough to penetrate heart tissue when pushed against the tissue, and a feature to resist withdrawal from the tissue after the sharp free end has penetrated the tissue. Among other things, the shape of a heart valve annulus is corrected in a catheter laboratory by orienting a tip of a catheter holding a heart tissue support that has gripping elements at the valve annulus, applying a radial force from the catheter against the annulus by opening a structure at the tip of the catheter, and while the structure is opened, forcing the support onto the annulus. Among other things, the shape of a heart valve annulus is corrected during a surgical procedure by pushing a heart tissue support that has gripping elements onto the annulus.

La présente invention concerne, entre autres, un support de cardiaque présentant des éléments de préhension, chaque élément présentant une extrémité libre qui est suffisamment acérée pour pénétrer dans le tissu cardiaque lorsqu'il est poussé contre le tissu, et une caractéristique pour résister à son retrait du tissu après la pénétration de l'extrémité libre acérée dans le tissu. La forme d'un anneau de valvule cardiaque est corrigée dans un laboratoire de cathéter par l'orientation d'un embout de cathéter contenant un support de tissu cardiaque qui comprend des éléments de préhension au niveau de l'anneau cardiaque, l'application d'une force radiale depuis le cathéter contre l'anneau par l'ouverture d'une structure à l'extrémité du cathéter, et lorsque la structure est ouverte, l'application forcée du support sur l'anneau. La forme d'un anneau de valvule cardiaque est corrigée lors d'une procédure chirurgicale en poussant le support de tissu cardiaque qui présente des éléments de préhension sur l'anneau.

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