A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 1/10 (2006.01) A61B 5/028 (2006.01) A61F 2/24 (2006.01) A61M 29/02 (2006.01) A61M 1/12 (2006.01)
Patent
CA 2361972
The invention relates to a device for the treatment of cardiac valve insufficiency or cardiac valve stenosis, which consists of a microaxial pump (40). The pump part (14) of said microaxial pump comprises a dilatation device (18) which can be used to push open a stenosed valve. The dilatation device is configured as a high-pressure balloon. During dilatation the microaxial pump (40) functions in such a way that it relieves the cardiac valve. In case of cardiac valve insufficiency a stent (21) which encloses a flexible cardiac valve prosthesis (20) is fixed to the dilatation device (17).The stent (21) is pressed against the insufficient cardiac valve by dilatation so that the cardiac valve ceases to function and the cardiac valve of the cardiac valve prosthesis is unfolded and takes over the function of the natural cardiac valve.
L'invention concerne un dispositif consistant en une micropompe axiale (40) et destiné à traiter les insuffisances ou les sténoses de valvules cardiaques. La partie de pompage (14) de la micropompe axiale comporte un dispositif de dilatation (18) pouvant s'utiliser pour comprimer une valvule sténosée. Le dispositif de dilatation se présente sous forme de ballon haute pression. Pendant la dilatation, la micropompe axiale (40) fonctionne de manière à soulager le coeur. En cas d'insuffisance d'une valvule cardiaque, on fixe sur le dispositif de dilatation (17) un tuteur qui entoure une prothèse de valvule cardiaque (20) souple. Sous l'effet de la dilatation, le tuteur (21) est comprimé contre la valvule cardiaque défaillante qui se trouve de ce fait placée hors fonction. A cet effet, la valvule cardiaque de la prothèse correspondante est déployée afin d'assumer la fonction de la valvule cardiaque naturelle.
Flameng Willem
Siess Thorsten
Gowling Lafleur Henderson Llp
Impella Cardiotechnik Ag
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