Method for determining the effective thermal mass of a body or organ using a cooling catheter
    4.
    发明授权
    Method for determining the effective thermal mass of a body or organ using a cooling catheter 有权
    使用冷却导管确定身体或器官的有效热质量的方法

    公开(公告)号:US07211105B2

    公开(公告)日:2007-05-01

    申请号:US10729526

    申请日:2003-12-05

    IPC分类号: A61F7/00

    摘要: A method and apparatus is provided for determining an effective thermal mass of a patient. The effective thermal mass is employed to determine a gain factor used in a feedback control system controlling patient temperature. The method begins by inducing hypothermia or hyperthermia in at least a selected portion of the patient with a device having a heat transfer surface. Next, power is transferred between the device and the patient. A change in temperature over time, which arises in the selected portion of the patient, is measured while performing the step of inducing hypothermia or hyperthermia. Finally, an effective thermal mass is calculated based on the measured power and the measured temperature change over time.

    摘要翻译: 提供了一种用于确定患者的有效热质量的方法和装置。 采用有效热质量来确定控制患者体温的反馈控制系统中所使用的增益因子。 该方法开始于在具有传热表面的装置的至少一部分患者中诱导体温过低或高热。 接下来,在设备和患者之间传送电力。 在进行诱导低体温或高热的步骤的同时测量在患者的选定部分中产生的随时间变化的温度。 最后,根据测量的功率和测量的温度随时间的变化计算有效的热质量。

    Therapeutic heating and cooling via temperature management of a colon-inserted dual balloon
    9.
    发明授权
    Therapeutic heating and cooling via temperature management of a colon-inserted dual balloon 有权
    通过结肠插入双气囊的温度管理进行治疗性加热和冷却

    公开(公告)号:US08323324B2

    公开(公告)日:2012-12-04

    申请号:US12257295

    申请日:2008-10-23

    IPC分类号: A61F7/12

    摘要: Methods and apparatus are provided for heating or cooling a patient's whole body or a selected portion of a patient's body. In one embodiment, the method begins by inserting a catheter having a dual balloon system into the large intestine of a patient. A heated or chilled liquid is conducted through a supply tube of the catheter and into the inner balloon. The liquid is evacuated from the inner balloon through a return lumen of the catheter. The outer balloon conducts heat transfer between the patient's tissues and the inner balloon, and further provides a degree of safety against rupture of the inner balloon.

    摘要翻译: 提供了用于加热或冷却患者的整个身体或患者身体的选定部分的方法和装置。 在一个实施例中,该方法开始于将具有双球囊系统的导管插入患者的大肠中。 加热或冷却的液体通过导管的供给管进入内球囊。 液体通过导管的返回腔从内部气囊排出。 外球囊导致患者组织和内囊之间的热传递,并进一步提供一定程度的安全性以防止内气囊破裂。

    System and method for inducing hypothermia with active patient temperature control employing catheter-mounted temperature sensor and temperature projection algorithm
    10.
    发明授权
    System and method for inducing hypothermia with active patient temperature control employing catheter-mounted temperature sensor and temperature projection algorithm 有权
    使用导管安装的温度传感器和温度投影算法,采用主动患者温度控制诱导低体温的系统和方法

    公开(公告)号:US07458984B2

    公开(公告)日:2008-12-02

    申请号:US10767782

    申请日:2004-01-28

    IPC分类号: A61F7/12

    摘要: Embodiments of the invention provide a system for temperature control of the human body. The system includes an indwelling catheter with a tip-mounted heat transfer element. The catheter is fluidically coupled to a console that provides a heated or cooled heat transfer working fluid to exchange heat with the heat transfer element, thereby heating or cooling blood. The heated or cooled blood then heats or cools the patient's body or a selected portion thereof. In particular, methods and devices, including software, are provided for administering cooling or rewarming and controlling the same based on a projected control temperature measured by a temperature sensor within the catheter.

    摘要翻译: 本发明的实施例提供了一种用于人体温度控制的系统。 该系统包括具有尖端安装的传热元件的留置导管。 导管流体地联接到控制台,其提供加热或冷却的传热工作流体以与传热元件交换热量,从而加热或冷却血液。 加热或冷却的血液然后加热或冷却患者的身体或其选定部分。 特别地,包括软件的方法和装置被提供用于基于由导管内的温度传感器测量的预测控制温度来管理冷却或再温度并对其进行控制。