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    • 8. 发明授权
    • Patient temperature control system with fluid temperature response
    • 患者温度控制系统具有流体温度响应
    • US06699267B2
    • 2004-03-02
    • US09976197
    • 2001-10-11
    • Marc VoorheesBruce Ellingboe
    • Marc VoorheesBruce Ellingboe
    • A61F700
    • A61F7/0085A61B2017/00199A61F2007/0001A61F2007/0054
    • An improved patient temperature exchange system and method is disclosed for use with one or more interconnectable patient contact pads. In one embodiment, the system includes a circulating pump for drawing fluid through the interconnected pad(s) under negative pressure, and for pumping the fluid through one of more heat exchange devices into a circulating reservoir. A make-up reservoir may be provided for gravity fluid flow into the circulating reservoir during the filling of the interconnectable pad(s) and for receiving fluid upon emptying of the interconnectable pad(s). During normal heating/cooling operations, the circulated fluid does not pass through the make-up reservoir, thereby yielding a highly responsive system. The make-up and circulatory reservoirs may be directly interconnected, with the make-up reservoir maintained at atmospheric pressure (e.g. via a non-spill vent). To reliably maintain the desired negative pressure in the interconnectable pad(s), the system may provide for fluid pressure sensing on the inlet side of the circulating pump. The sensed pressure may be utilized to control the speed of the circulating pump. The system may further provide for the positioning of pressure drop a componentry on the outlet side of the circulating pump, thereby further facilitating the maintenance of a desired negative pressure within the interconnected pad(s). A bypass fluid line may also be included to provide for fluid preconditioning prior to interconnection of and/or fluid flow through the pad(s). Multiple temperature sensors and an interface for an external patient temperature input may also be provided for enhanced fluid heating/cooling control.
    • 公开了一种用于一个或多个可互连的患者接触垫的改善的患者体温交换系统和方法。 在一个实施例中,系统包括循环泵,用于在负压下通过互连的衬垫抽取流体,并且用于将流体通过其中一个更多的热交换装置泵送到循环容器中。 可以提供补充储存器,用于在填充可互连垫期间重力流体进入循环储存器并且在排空可互连垫时接收流体。 在正常的加热/冷却操作期间,循环流体不通过补充储存器,从而产生高反应性系统。 补充和循环储存器可以直接相互连接,补充储存器保持在大气压(例如通过非溢出口)。 为了在可互连焊盘中可靠地保持所需的负压,系统可以提供在循环泵的入口侧的流体压力感测。 感测的压力可用于控制循环泵的速度。 该系统可以进一步提供将循环泵的出口侧上的压降定位为压力,从而进一步有助于在互连的衬垫内保持所需的负压。 还可以包括旁路流体管线以在流经预先配置的流体和/或流体流过衬垫之前提供流体预处理。 还可以提供多个温度传感器和用于外部患者温度输入的界面,以增强流体加热/冷却控制。