Methods and apparatus for regional and whole body temperature modification
    46.
    发明授权
    Methods and apparatus for regional and whole body temperature modification 失效
    区域和全身温度改变的方法和装置

    公开(公告)号:US07771460B2

    公开(公告)日:2010-08-10

    申请号:US11931463

    申请日:2007-10-31

    IPC分类号: A61F7/00

    摘要: Methods and apparatus for temperature modification of selected body regions including an induced state of local hypothermia of the brain region for neuroprotection. A heat exchange catheter is provided with heat transfer fins projecting or extending outward from the catheter which may be inserted into selected blood vessels or body regions to transfer heat with blood or fluid in the selected blood vessels or body regions. Another aspect of the invention further provides methods and apparatus for controlling the internal body temperature of a patient. By selectively heating or cooling a portion of the catheter lying within a blood vessel, heat may be transferred to or from blood flowing within the vessel to increase or decrease whole body temperature or the temperature of a target region. Feed back from temperature sensors located within the patient's body allow for control of the heat transfer from the catheter to automatically control the temperature of the patient or of the target region within the patient. The apparatus may include a blood channeling sleeve that directs body fluid over a heat exchanger where the body fluid's temperature is altered, and then is discharged out the distal end of the sleeve to a desired location, for example, cooled blood to the brain for neuroprotection. The catheter may be used alone or in conjunction with other heat exchangers to cool one region of a patient's body while heating another.

    摘要翻译: 包括神经保护用脑区局部低温诱导状态的选择体区的温度改变方法和装置。 热交换导管设置有从导管向外突出或向外延伸的传热翅片,其可以插入到选定的血管或身体区域中,以将热量与所选择的血管或身体区域中的血液或流体传热。 本发明的另一方面还提供了用于控制患者体内温度的方法和装置。 通过选择性地加热或冷却位于血管内的导管的一部分,热量可以转移到血管内流动的血液或从血液中流出的血液转移,以增加或减少全身体温或目标区域的温度。 从位于病人体内的温度传感器反馈,可以控制从导管传导的热量,以自动控制患者或患者内目标区域的温度。 该装置可以包括引导体液在体液温度改变的热交换器上引导体液,然后将其从套管的远端排出到期望的位置,例如冷却到脑的血液用于神经保护 。 导管可以单独使用或与其他热交换器结合使用以冷却患者身体的一个区域,同时加热另一个。