Devices for pumping blood, related systems, and related methods

An intravascular device for pumping blood includes a catheter comprising a membrane chamber located between a proximal end and a distal end of the catheter. An inflatable membrane is disposed within the membrane chamber. The intravascular device includes a first one-way valve and optionally a second one-way valve configured to permit blood flow in a first direction. The first one-way valve may bepositioned proximal to the membrane chamber, and the second one-way valve may be positioned distal to the membrane chamber. Methods related to intravascular devices and their respective use are provided. 一种用于泵送血液的血管内装置包括导管，所述导管包括位于所述导管的近端与远端之间的膜腔室。可充气膜被布置在所述膜腔室内。所述血管内装置包括配置为允许第一方向上的血流的第一单向阀门和可选的第二单向阀门。所述第一单向阀门可以定位在所述膜腔室的近侧，并且所述第二单向阀门可以定位在所述膜腔室的远侧。提供了与血管内装置有关的方法及其相应用途。