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41. 再颁专利

USRE39863E1 Combined flow, pressure and temperature sensor 失效
标题翻译：组合流量，压力和温度传感器
公开(公告)号：USRE39863E1
公开(公告)日：2007-10-02
申请号：US10224346
申请日：1997-01-30
申请人： Leif Smith
发明人： Leif Smith
IPC分类号： G01L9/02 , G01L19/04
CPC分类号： G01L19/0092 , A61B5/0215 , A61B5/028 , A61M2025/0002 , G01F1/6845 , G01K1/045 , G01L19/148
摘要： The invention relates to a device for measuring pressure, temperature and/or flow velocity. It includes a sensor (6) with a sensor support body (13) provided with a diaphragm (15) covering a cavity (14) formed in the support body (13). A pressure sensitive element (41) is mounted on the diaphragm, for recording pressure. Furthermore, a temperature sensitive resistor (42) is mounted in the vicinity of the pressure sensitive resistor and has a known temperature dependence, for recording temperature. It also includes an electrical circuit (43, 44, 45, 46) selectively outputting signals from either of the pressure sensitive element and the temperature sensitive resistor.
摘要翻译：本发明涉及一种用于测量压力，温度和/或流速的装置。它包括具有传感器支撑体（13）的传感器（6），传感器支撑体（13）设置有覆盖形成在支撑体（13）中的空腔（14）的隔膜（15）。压力敏感元件（41）安装在隔膜上，用于记录压力。此外，温度敏感电阻器（42）安装在压敏电阻附近，并具有已知的温度依赖性，用于记录温度。它还包括选择性地输出来自压敏元件和温度敏感电阻器中的任一个的信号的电路（43,44,45,46）。

42. 发明授权

US06615667B2 Combined flow, pressure and temperature sensor 有权
标题翻译：组合流量，压力和温度传感器
公开(公告)号：US06615667B2
公开(公告)日：2003-09-09
申请号：US10022361
申请日：2001-12-20
申请人： Leif Smith
发明人： Leif Smith
IPC分类号： G01L902
CPC分类号： G01L19/0092 , A61B5/0215 , A61B5/028 , A61M2025/0002 , G01F1/6845 , G01K1/045 , G01L19/148
摘要： The invention relates to a device for measuring pressure, temperature and flow velocity. It comprises a sensor (6) with a sensor support body (13) provided with a diaphragm (15) covering a cavity (14) formed in the support body (13). A pressure sensitive element (41) is mounted on the diaphragm, for recording pressure. Furthermore, a temperature sensitive resistor (42) mounted in the vicinity of and having known temperature dependences, for recording temperature. It also comprises an electrical circuit (43, 44, 45, 46) selectively outputting signals from either of the pressure sensitive element and the temperature sensitive resistor.
摘要翻译：本发明涉及一种用于测量压力，温度和流速的装置。它包括具有传感器支撑体（13）的传感器（6），传感器支撑体（13）设置有覆盖形成在支撑体（13）中的空腔（14）的隔膜（15）。压力敏感元件（41）安装在隔膜上，用于记录压力。此外，安装在温度附近并具有已知温度依赖性的温度敏感电阻器（42）用于记录温度。它还包括选择性地输出来自压敏元件和温度敏感电阻器中的任一个的信号的电路（43,44,45,46）。

43. 发明授权

US6089103A Method of flow measurements 失效
标题翻译：流量测量方法
公开(公告)号：US6089103A
公开(公告)日：2000-07-18
申请号：US73061
申请日：1998-05-06
申请人： Leif Smith
发明人： Leif Smith
IPC分类号： A61B5/028 , A61B5/0295 , G01F1/708 , G01L9/00
CPC分类号： A61B5/028 , G01F1/7084
摘要： A system and method for measuring flow of a fluid flowing in a narrow channel. A sensor is provided, having an element sensitive to pressure, and an element sensitive to a selected chemical or physical property, both arranged at the distal end of a guide wire, for registering pressure values and values of said selected chemical or physical property. The sensor is located at a point of measurement in the narrow channel. A bolus of liquid having a property distinguishable from the selected property of the flowing fluid and detectable by the second sensitive element is injected into the fluid, and registered with said first sensitive element is a pressure pulse resulting from said injecting step. A point in time of the pulse is taken as a starting point for measuring elapsed time. Registered with the second sensitive element is the distinguishable property of the bolus in the fluid when the bolus in the fluid passes the second sensitive element. The elapsed time from the injecting of the bolus, up to the registering of the distinguishable property is noted, and a flow parameter is calculated on the basis of a value of the registered pressure pulse and a value of the distinguishable property.
摘要翻译：用于测量在狭窄通道中流动的流体的流动的系统和方法。提供具有对压力敏感的元件的传感器和对所选择的化学或物理性质敏感的元件，两者都布置在引导线的远端处，用于记录所选择的化学或物理性质的压力值和值。传感器位于狭窄通道中的测量点。将具有与流动流体的选定性质区分开并且可被第二敏感元件检测的特性的性质的液体注射到流体中，并且与所述第一敏感元件配准是由所述注射步骤产生的压力脉冲。将脉冲的时间点作为测量经过时间的起点。与第二敏感元件一起注册的是当流体中的推注通过第二敏感元件时液体中的推注的可区分的特性。注意从注射大剂量所经过的时间，直到可区分性质的登记，并且基于登记的压力脉冲的值和可区分性质的值来计算流动参数。

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