People in poor countries are much less likely to survive severe burns, for example, which can be helped with negative-pressure therapy.

贫穷国家的人，比如严重烧伤的话，存活下来的可能性会更小；而负压疗法正好能够起到作用。

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Negative-pressure devices, which act like a vacuum over the bandaged wound, have become a central part of wound therapy in the United States over the last decade.

负压设备的工作原理，就像在包扎的伤口上制造一个真空环境，这种方法在过去十年里已经成为美国伤口治疗的核心部分。

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Negative-pressure therapy decreases the need to change wound dressings from one to three times per day to once every few days, a major benefit when medical staff is in short supply.

负压疗法降低了频繁给伤口换绷带的需要，从之前每天换1到3次降低到几天才换一次；在医护人员紧缺的时候，这会起到很大的作用。

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One of the great innovations in recent years has been negative pressure wound therapy.

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One example is a device for Negative Pressure Wound Therapy, which was added by CMS to the competitive bidding list as a new category.

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One company, KCI based in San Antonio, Texas, handles more than half a million support calls a year for their Negative Pressure Wound therapy system.

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