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机械瓣膜

图示机械瓣膜,通过瓣膜的倾斜来达到开关的目的。此种瓣膜寿命长,但病人需要连续抗凝治疗,因为暴露的非生物性瓣膜的表面。左侧为心房面,右侧为心室面。优点是能象正常瓣膜一样开关。

This is a mechanical valve prosthesis of the more modern tilting disk variety. Such mechanical prostheses will last indefinitely from a structural standpoint, but the patient requires continuing anticoagulation because of the exposed non-biologic surfaces. The superior aspect (here the left atrium) is seen at the left, while the outflow, with the two leaflets tilted outward toward the left ventricle, is at the right in this mitral valve prosthesis.


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