| 摘要 |
Therapeutic devices (30, 40, 50, 60) that provide support or pressure to tissue. Devices (30, 40, 50, 60) contain a material that is capable of being contracted from its relaxed state to an evacuated state. The material applie s pressure to the tissue of a patient when the material is in its relaxed stat e. Reduction of pressure by application of a vacuum results in a contracted sta te of the device, so that the device can be applied or delivered to a patient. Release of vacuum results in a return to the relaxed state, thus providing a maximum desirable pressure to tissue and avoiding the possibility of over- pressure which can result in tissue damage or necrosis.
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