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公开(公告)号：EP2438935B1
公开(公告)日：2014-01-15
申请号：EP11010128.4
申请日：2007-10-12
CPC分类号： A61M1/0023 , A61M1/0031 , A61M1/005 , A61M1/0088 , A61M2205/15 , A61M2205/16 , A61M2205/18
摘要： A negative pressure wound therapy apparatus can include a wound dressing, a fluid collection container, a vacuum pump comprising a pump motor, and tubing. Additionally, the apparatus can include a pressure sensor that measures a pressure in the tubing. One or more tubes can channel a fluid between the wound dressing, the fluid collection canister, and the pump. In addition, first and second control circuits can be provided for controlling the pump motor without using a processor. The first control circuit can generate a difference signal between a desired pressure input and a pressure sensor input, and can further generate a motor control signal responsive to the difference signal. Moreover, a second control circuit can provide an override signal based at least in part on the difference signal and at least one reference signal. The override signal beneficially overrides the motor control signal to prevent the pump motor from stalling.
摘要翻译： 负压伤口治疗装置可以包括伤口敷料，流体收集容器，包括泵马达的真空泵和管道。 另外，该装置可以包括测量管道中的压力的压力传感器。 一个或多个管可以在伤口敷料，流体收集罐和泵之间引导流体。 此外，可以提供第一和第二控制电路来控制泵电机而不使用处理器。 第一控制电路可以在期望的压力输入和压力传感器输入之间产生差分信号，并且可以进一步响应差分信号产生电动机控制信号。 此外，第二控制电路可以至少部分地基于差分信号和至少一个参考信号来提供超控信号。 超控信号有利地覆盖电机控制信号，以防止泵电机停转。
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公开(公告)号：EP2438935A1
公开(公告)日：2012-04-11
申请号：EP11010128.4
申请日：2007-10-12
CPC分类号： A61M1/0023 , A61M1/0031 , A61M1/005 , A61M1/0088 , A61M2205/15 , A61M2205/16 , A61M2205/18
摘要： A negative pressure wound therapy apparatus can include a wound dressing, a fluid collection container, a vacuum pump comprising a pump motor, and tubing. Additionally, the apparatus can include a pressure sensor that measures a pressure in the tubing. One or more tubes can channel a fluid between the wound dressing, the fluid collection canister, and the pump. In addition, first and second control circuits can be provided for controlling the pump motor without using a processor. The first control circuit can generate a difference signal between a desired pressure input and a pressure sensor input, and can further generate a motor control signal responsive to the difference signal. Moreover, a second control circuit can provide an override signal based at least in part on the difference signal and at least one reference signal. The override signal beneficially overrides the motor control signal to prevent the pump motor from stalling.
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