| 摘要 |
A pump system for use in blood retroperfusion consists of a pump with a variable volume chamber 16 defined by flexible bulb 22, the pump having its outlet connected to a retroperfusion catheter 20 and an inlet connected to a line 12 that receives blood to be retroperfused. A reservoir 14 is provided in the inlet blood flow to the pump. A check valve 18 is provided in the blood flow path between the reservoir 14 and the pump. A reciprocal member 24 operates the pump, and is driven by a moving core, in the form of an electrical coil, in the magnetic field of a permanent or electromagnet. <IMAGE> |
