| 摘要 |
A calf compression device, suitable for reducing the risks of deep being thrombosis or DVT, comprises an inflatable cuff, which can be wrapped around the whole or part of a leg of a human person, and a pump which is capable of cyclically inflating and deflating the cuff over a regular repeating cycle. Also disclosed is an associated method in which the cuff is placed around a calf, inflated rapidly, such as over 5-10 seconds, to a pressure of between 40-70mm of mercury which is maintained for 10-15 seconds, followed by deflation to ambient pressure over a period of 40-50 seconds. A range of alternative related operating times and pressures are specified. The device may be portable and include a power supply, pressure sensor, timer, and release valve which may all be integral with the device. Alternately, some of the aforementioned components, such as the power supply, power supply and pump, or power supply, pump and timer may be provided in some other fixture such as a bed, car seat or dashboard or aeroplane seat. The invention may further be embodied in two such cuffs and associated components provided in a kit form. Also disclosed is an electric pump and timing device combination providing capable of providing the same timing and pressure conditions as the above mentioned method.
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