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    • 3. 发明专利
    • Actuator-based calibration system for pressure-sensitive catheter
    • 基于执行器的压敏电阻校准系统
    • JP2011131058A
    • 2011-07-07
    • JP2010285631
    • 2010-12-22
    • Biosense Webster (Israel) Ltdバイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd.
    • GOVARI ASSAFEPHRATH YARONALTMANN ANDRES C
    • A61M25/00A61B19/00G01L25/00
    • A61B5/1495A61B5/6885A61B2560/0223
    • PROBLEM TO BE SOLVED: To provide calibrating pressure sensors in invasive probes. SOLUTION: A calibration apparatus includes a fixture coupled to hold a distal end of a medical probe. An actuator is configured to press against the distal tip of the probe and apply to the distal tip multiple force vectors having respective magnitudes and angles with respect to the distal end, so as to cause a deformation of the distal tip relative to the distal end. A sensing device is configured to measure the magnitudes of the force vectors applied by the actuator. A calibration processor is configured to receive from the probe first measurements indicative of the deformation of the distal tip in response to the force vectors, to receive from the sensing device second measurements indicative of the magnitudes of the force vectors, and to compute, based on the angles and the first and second measurements, calibration coefficients for assessing the force vectors as a function of the first measurements. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:在侵入性探针中提供校准压力传感器。 解决方案:校准装置包括联接以保持医疗探针的远端的固定器。 致动器被构造成压靠探针的远侧末端并且向远侧末端施加具有相对于远端具有相应大小和角度的多个力矢量,以便引起远侧末端相对于远端的变形。 感测装置被配置为测量由致动器施加的力矢量的大小。 校准处理器被配置为从探针接收第一测量值,其指示响应于力矢量的远端尖端的变形,从感测装置接收指示力矢量的幅度的第二测量值,并基于 角度和第一和第二测量值,用于评估作为第一测量的函数的力矢量的校准系数。 版权所有(C)2011,JPO&INPIT