| 摘要 |
A device for the transvascular implantation and fixation of prosthetic heart valves having a self-expanding heart valve stent ( 10 ) with a prosthetic heart valve ( 11 ) at its proximal end is introducible into a patient's main artery. With the objective of optimizing such a device to the extent that the prosthetic heart valve ( 11 ) can be implanted into a patient in a minimally-invasive procedure, to ensure optimal positioning accuracy of the prosthesis ( 11 ) in the patient's ventricle, the device includes a self-expanding positioning stent ( 20 ) introducible into an aortic valve positioned within a patient. The positioning stent is configured separately from the heart valve stent ( 10 ) so that the two stents respectively interact in their expanded states such that the heart valve stent ( 10 ) is held by the positioning stent ( 20 ) in a position in the patient's aorta relative the heart valve predefinable by the positioning stent ( 20 ).
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