Stent for fixing the position the valve prosthesis at the implantation site in the heart of a patient

摘要

Stent for fixing the position of the valve prosthesis (100) in the implantation site of the patient's heart The present invention relates to (10). In particular, the present invention relates to expandable stent in the body for prosthesis used in the treatment of heart valve insufficiency and cardiac valve stenosis or /. Even if there is a peristaltic motion of the heart in a state of being implanted stent (10), longitudinal displacement (10) The valve prosthesis fixed stent (10) stent (100) is prevented from occurring. The stent according to the present invention (10) includes a fixed portion of one (11,11a) at least to be connected to the (10) valve prosthesis stent (100). The stent (10), further comprising (16a, 16b, 16c) positioning arch retaining arches (15a, 15b, 15c) and, at least (15a, 15b, 15c) positioning arch of one retaining arches of one (16a, is connected 16b, to 16c). [Selection Figure] Figure 20b