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    • 4. 发明授权
    • Tonometry sensor calibration apparatus
    • 眼压计传感器校准装置
    • US5195522A
    • 1993-03-23
    • US717224
    • 1991-06-18
    • Kenneth J. PytelStephen A. MartinRobert D. Butterfield
    • Kenneth J. PytelStephen A. MartinRobert D. Butterfield
    • A61B5/021A61B5/022A61B5/0225A61B5/024
    • A61B5/02422A61B5/021A61B5/02241A61B2560/0223
    • A calibration apparatus for use in calibrating a tissue stress sensor used in a blood pressure monitoring system. The calibration apparatus includes a calibration head which is adapted to be retained in close proximity to a tissue stress sensor. The calibration head includes means for heating the tissue stress sensor. A calibration system is also disclosed for calibrating a blood pressure monitoring system, the blood pressure monitoring system employing a stress sensor for generating an electric output signal representative of tissue stress data. The calibration system comprises a tissue stress sensor having a displaceable diaphragm and a sealed chamber. The chamber has a continuous wall defining an inner volume and an outer volume. The displaceable diaphragm comprises a portion of the continuous wall, whereby the displaceable diaphragm is responsive to a pressure differential between the inner chamber volume and the outer chamber volume. The vacuum means is fluidly coupled to the inner volume of the sealed chamber for applying a controlled vacuum to the inner volume of the chamber whereby the diaphragm is displaced in response to the application of the vacuum. Calibration means is provided for detecting the sensors response to heating and displacing of the sensor diaphragm and for generating corrective data for use in correcting the effects of sensor temperture on the data generated by the sensor.
    • 一种用于校准在血压监测系统中使用的组织应力传感器的校准装置。 校准装置包括校准头,其适于保持紧靠组织应力传感器。 校准头包括用于加热组织应力传感器的装置。 还公开了一种用于校准血压监测系统的校准系统,所述血压监测系统采用应力传感器来产生代表组织应力数据的电输出信号。 校准系统包括具有可移动隔膜和密封室的组织应力传感器。 该室具有限定内容积和外容积的连续壁。 可移动隔膜包括连续壁的一部分,由此可移动隔膜响应于内室容积和外室体积之间的压力差。 真空装置流体耦合到密封室的内部容积,用于将受控制的真空施加到室的内部容积,由此隔膜响应于真空的应用而移位。 提供了校准装置,用于检测传感器对传感器隔膜的加热和移位的响应,并产生用于校正传感器温度对传感器产生的数据的影响的校正数据。
    • 8. 发明授权
    • Method of determining optimum artery applanation
    • 确定最佳动脉压扁的方法
    • US5273046A
    • 1993-12-28
    • US869553
    • 1992-04-15
    • Robert D. ButterfieldStephen A. Martin
    • Robert D. ButterfieldStephen A. Martin
    • A61B5/022A61B5/02
    • A61B5/021A61B2562/0247
    • A method, for use in a non-invasive blood pressure monitoring system, of determining optimum artery applanation. The system uses a stress sensor including a stress sensitive element for detecting stress of tissue overlying an artery of interest. The tissue stress sensor is placed in communication with tissue overlying the artery of interest and at least one electrical signal is obtained therefrom representing stress data across the length of the stress sensitive element. The data represents stress datum communicated to a preselected portion of the stress sensitive element. From the stress datum, various algorithms are used, singly or in combination, to provide the best measure of optimum applanation state. Intra-arterial blood pressure is then calculated using datum collected at the optimum applanation state. In addition, to the optimum applanation methods, a method is disclosed for determining which portion of the stress sensitive element is best suited for estimating intra-arterial blood pressure.
    • 一种用于非侵入性血压监测系统的方法,用于确定最佳动脉压扁。 该系统使用包括应力敏感元件的应力传感器来检测感兴趣的动脉上方的组织的压力。 将组织应力传感器置于与感兴趣的动脉相邻的组织的连通中,并且获得至少一个电信号,表示跨过应力敏感元件长度的应力数据。 数据表示传递给应力敏感元件的预选部分的应力基准。 从应力数据,单独或组合使用各种算法,以提供最佳压平状态的最佳测量。 然后使用在最佳压扁状态下收集的数据计算动脉内血压。 另外,对于最佳压平方法,公开了一种用于确定应力敏感元件的哪一部分最适合于估计动脉内血压的方法。
    • 9. 发明授权
    • Wrist mount apparatus for use in blood pressure tonometry
    • 用于血压眼压测量的手腕式装置
    • US5271405A
    • 1993-12-21
    • US699859
    • 1991-05-14
    • Stanley J. BoyerStephen A. MartinChristine A. Giurdanella-RenziCharles R. HoldawayRobert D. Butterfield
    • Stanley J. BoyerStephen A. MartinChristine A. Giurdanella-RenziCharles R. HoldawayRobert D. Butterfield
    • A61B5/0205A61B5/021A61B5/022A61B5/00
    • A61B5/021
    • A wrist mount apparatus for placing a tissue stress sensor in operative engagement with the tissue overlaying an artery of interest is disclosed for use in a system for noninvasively determining the intra-arterial blood pressure of a patient. The wrist mount apparatus comprises a base portion and a transducer platform which is pivotally and slidingly engaged to the base portion. This arrangement allows the apparatus to be used on either the right or the left wrist of the wearer. A force overload system is provided whereby the wearer is protected from excessive forces applied to the wrist tissue by the apparatus used to applanate the artery. A quick disconnect feature allows the tissue stress sensor to be removed from the wrist mount apparatus without necessitating the use of tools. A disposable, anticontamination film is used with each application of the wrist mount apparatus to minimize the risk of transferring contaminants from one wearer to another and to prevent a build up of materials on the sensor's face.
    • 公开了一种用于将组织应力传感器放置在与覆盖感兴趣的动脉的组织操作性接合的手腕安装装置,用于非侵入性地确定患者的动脉内血压的系统中。 手腕安装装置包括基部和与枢转并滑动地接合到基部的换能器平台。 这种布置允许该装置在佩戴者的右手腕或左手腕上使用。 提供了一种力过载系统,由此佩戴者不受用于压迫动脉的装置施加到手腕组织的过大的力。 快速断开功能允许组织应力传感器从手腕安装装置移除,而不需要使用工具。 使用一次性的抗静电胶片,每一次使用手腕安装装置,以最大限度地减少将污染物从一个佩戴者转移到另一个佩戴者的危险,并防止传感器表面上的材料积聚。
    • 10. 发明授权
    • Method of continuously monitoring blood pressure
    • 持续监测血压的方法
    • US5261412A
    • 1993-11-16
    • US980931
    • 1992-11-20
    • Robert D. ButterfieldStephen A. Martin
    • Robert D. ButterfieldStephen A. Martin
    • A61B5/022A61B5/0225A61B5/02
    • A61B5/021A61B5/02255
    • A method, for use in a non-invasive blood pressure monitoring system, of operating a tissue stress sensor at an off-optimum arterial applanation state. The system uses a stress sensor including a stress sensitive element for detecting stress of tissue overlying an artery of interest. The tissue stress sensor is placed in communication with tissue overlying the artery of interest and at least one electrical signal is obtained therefrom representing stress data across the length of the stress sensitive element. The data represents stress datum communicated to preselected portions of the stress sensitive element. From the stress datum, various techniques are used to determine the optimum applanation state and the actual applanation state. A waveform scaling factor function is created which compensates for the errors associated with operating the tissue stress sensor at an off-optimum applanation state. Thus, the disclosed method provides the benefits associated with operating a tissue stress sensor at an off-optimum state without sacrificing measurement accuracy.
    • 一种用于非侵入性血压监测系统的方法,用于在非最佳动脉压扁状态下操作组织应力传感器。 该系统使用包括应力敏感元件的应力传感器来检测感兴趣的动脉上方的组织的压力。 将组织应力传感器置于与感兴趣的动脉相邻的组织的连通中,并且获得至少一个电信号,表示跨过应力敏感元件长度的应力数据。 数据表示与应力敏感元件的预选部分通信的应力基准。 从应力数据,使用各种技术来确定最佳压平状态和实际压平状态。 产生波形缩放因子函数,其补偿在非最佳压扁状态下操作组织应力传感器所引起的误差。 因此,所公开的方法提供与在非最佳状态下操作组织应力传感器相关联的益处,而不牺牲测量精度。