| 摘要 |
The present invention is a vascular assist device (20) which maintains a static graduated pressure as the minimum pressure at all times during use. At least two inflatable chambers (21) which wrap around selected portions of a limb apply elevated pressure to selected portions of a lim to disgorge blood therefrom. The inflatable chambers also apply static pressure which is graduated from distal to proximal along selected portions of a limb, such as from the ankle to the hip. A separate inflatable foot chamber (45) can be included, and is not necessarily utilized in conjunction with the compression phases for the ankle, calf, or thigh inflatable chambers (46, 48, 50). A desired pressure level is generated, and maintained in a pressure accumulator (22). A pressure regulator (34), and pressure regulator valve (30) control the pressure in the inflatable chambers.
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