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公开(公告)号：US5522266A
公开(公告)日：1996-06-04
申请号：US160035
申请日：1993-11-30
申请人： Warren B. Nicholson , Charles R. Patzer , Thomas P. Frank , Dennis M. Tomisaka , Glen D. Brunner , John C. Toomey , Michael P. Eland
发明人： Warren B. Nicholson , Charles R. Patzer , Thomas P. Frank , Dennis M. Tomisaka , Glen D. Brunner , John C. Toomey , Michael P. Eland
CPC分类号： G01L9/0055
摘要： A pressure transducer (10) for measuring fluid pressure in a fluid path comprising a strain gauge circuit (37) of thick film piezoresistors formed on an alumina diaphragm (36) in a Wheatstone bridge configuration. Each resistance leg of the bridge typically includes a thick film measuring piezoresistor (R1A) to which selected thick film patch-in piezoresistors (R1B, R1C, R1D, R1E) are selectively connected to create a measuring resistance network (PN1). The measuring resistance network is adjusted to a predetermined resistance value to balance and optimize the electrical symmetry of the bridge. The pressure transducer (10) includes a mechanical stop member (46) located adjacent the alumina diaphragm (36) such that the fully deflected diaphragm contacts the stop thereby physically preventing the diaphragm from deflecting an amount that would cause the diaphragm to rupture.
摘要翻译： 一种用于测量流体路径中的流体压力的压力传感器（10），包括形成在惠斯登电桥结构的氧化铝隔膜（36）上的厚膜压阻器的应变计电路（37）。 桥的每个电阻腿通常包括厚度测量压电电阻（R1A）的厚膜，选择性地连接选择的厚膜贴片式压阻电阻器（R1B，R1C，R1D，R1E）以产生测量电阻网络（PN1）。 将测量电阻网络调整到预定的电阻值，以平衡和优化电桥的电对称性。 压力传感器（10）包括位于氧化铝隔膜（36）附近的机械止动构件（46），使得完全偏转的隔膜接触止动件，从而物理地防止隔膜偏转导致隔膜破裂的量。
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公开(公告)号：US5752918A
公开(公告)日：1998-05-19
申请号：US496080
申请日：1995-06-28
申请人： James H. Fowler , Charles R. Patzer , Warren B. Nicholson , Wendell Thompson , Glenn D. Brunner , Theodore R. Adams , Nilesh M. Shah
发明人： James H. Fowler , Charles R. Patzer , Warren B. Nicholson , Wendell Thompson , Glenn D. Brunner , Theodore R. Adams , Nilesh M. Shah
CPC分类号： F16M13/00 , A61M5/1413 , A61M5/16854 , F16M11/041 , F16M11/16 , F16M11/22 , F16M13/022 , G01L19/0023 , A61M2205/12 , F16M2200/02
摘要： A medical pressure transducer includes a reusable component with channels to either side of a reusable diaphragm, and a disposable dome with mounting wings to either side of a disposable diaphragm and slidably receivable in the channels to mount the dome with the diaphragms in confronting relationship. Camming ramps are provided in the channels and on the wings by which to drive the dome diaphragm into the reusable diaphragm. Where the channels are defined behind outer front walls, the outer surface of one is provided with a tab-receiving slot to receive a locking tab associated with dome to lock diaphragms into confronting relationship. The dome includes second wings spaced from the mounting wings to receive the outer front walls. The second wings have finger gripping portions one of which is a locking paddle supporting the lock tab. In alternative embodiments, the dome wings are edges, fixed or resilient, receivable through slots formed in the reusable component.
摘要翻译： 医疗用压力传感器包括具有通向可重复使用隔膜两侧的通道的可重复使用的部件，以及具有安装翼片的一次性圆顶，其一次性膜片的任一侧具有安装翼片，并且可滑动地接收在通道中以与隔膜相对的安装圆顶。 凸轮斜坡设置在通道和翼上，通过该通道和驱动圆顶隔膜进入可重复使用的隔膜。 在通道被限定在外前壁后面的情况下，一个的外表面设置有突出部接收槽，以接收与圆顶相关联的锁定突出部，以将隔膜锁定在面对的关系中。 圆顶包括与安装翼间隔开的第二翼，以容纳外前壁。 第二翼具有手指抓握部分，其中之一是支撑锁舌的锁定桨。 在替代实施例中，圆顶翼是通过形成在可重复使用部件中的狭槽可接收的固定或弹性的边缘。
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公开(公告)号：US5848971A
公开(公告)日：1998-12-15
申请号：US837919
申请日：1997-04-11
申请人： James H. Fowler , Charles R. Patzer , Warren B. Nicholson , Wendell Thompson , Glenn D. Brunner , Theodore R. Adams , Nilesh M. Shah
发明人： James H. Fowler , Charles R. Patzer , Warren B. Nicholson , Wendell Thompson , Glenn D. Brunner , Theodore R. Adams , Nilesh M. Shah
CPC分类号： F16M13/00 , A61M5/1413 , A61M5/16854 , F16M11/041 , F16M11/16 , F16M11/22 , F16M13/022 , G01L19/0023 , A61M2205/12 , F16M2200/02
摘要： A medical pressure transducer includes a reusable component with channels to either side of a reusable diaphragm, and a disposable dome with mounting wings to either side of a disposable diaphragm and slidably receivable in the channels to mount the dome with the diaphragms in confronting relationship. Camming ramps are provided in the channels and on the wings by which to drive the dome diaphragm into the reusable diaphragm. Where the channels are defined behind outer front walls, the outer surface of one is provided with a tab-receiving slot to receive a locking tab associated with dome to lock diaphragms into confronting relationship. The dome includes second wings spaced from the mounting wings to receive the outer front walls. The second wings have finger gripping portions one of which is a locking paddle supporting the lock tab. In alternative embodiments, the dome wings are edges, fixed or resilient, receivable through slots formed in the reusable component.
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公开(公告)号：US4920972A
公开(公告)日：1990-05-01
申请号：US283224
申请日：1988-12-12
IPC分类号： A61B5/0215 , A61B5/02 , G01L9/00
CPC分类号： A61B5/0215 , G01L19/0645 , G01L19/142
摘要： A reusable pressure transducer for use with a detachable dome. The pressure transducer includes a body having a recess with an opening covered by a flexible diaphragm. The body has a hole opposite the flexible diaphragm and a sensor placed over the hole. A dielectric gel fills the recess to transmit to the sensor variations in pressure imparted to the diaphragm.
摘要翻译： 可拆卸式圆顶使用的可重复使用的压力传感器。 压力传感器包括具有凹口的主体，该凹部具有被柔性隔膜覆盖的开口。 主体具有与柔性隔膜相对的孔和位于孔上方的传感器。 介电凝胶填充凹部以传递传感器施加到隔膜的压力变化。
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5.发明授权公开(公告)号：US06915710B2
公开(公告)日：2005-07-12
申请号：US10008304
申请日：2001-11-06
申请人： Warren B. Nicholson
发明人： Warren B. Nicholson
摘要： An optical torque sensor comprises a radiation source emitting radiation of at least one wavelength. At least one sensor senses the emitted radiation and generates at least one intensity signal indicative of the intensity of the emitted radiation. At least one signal conditioner is receptive of the emitted radiation and is positioned on a shaft between the radiation source and the at least one sensor thereby conditioning the emitted radiation. A circuit is receptive of the at least one intensity signal and determines the torque acting upon the shaft and compensates for the attenuation of the emitted radiation.
摘要翻译： 光学扭矩传感器包括发射至少一个波长的辐射的辐射源。 至少一个传感器感测所发射的辐射并且产生指示所发射的辐射的强度的至少一个强度信号。 至少一个信号调节器接受所发射的辐射并且被定位在辐射源和至少一个传感器之间的轴上，从而调节发射的辐射。 电路接收至少一个强度信号并且确定作用在轴上的扭矩并且补偿所发射的辐射的衰减。
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公开(公告)号：US5221271A
公开(公告)日：1993-06-22
申请号：US746239
申请日：1991-08-15
IPC分类号： A61M39/04
CPC分类号： A61M39/04 , Y10S604/905
摘要： A sample site for obtaining a whole blood sample includes flow directors in the ports. The flow directors may include ramp surfaces. Blood flowing into the sample site is diverted by the flow directors to mix with and flush out all of the saline otherwise present in the sample site to allow for a whole blood sample to be taken.
摘要翻译： 用于获得全血样本的样本站包括端口中的导流器。 导流器可以包括斜面。 流入样品部位的血液由流动导向器转移，以与样品位置中存在的所有盐水混合并冲洗，以允许采集全血样品。
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公开(公告)号：US5383855A
公开(公告)日：1995-01-24
申请号：US932645
申请日：1992-08-20
CPC分类号： A61M25/10184 , A61M25/1018 , A61M25/10188 , A61M25/104 , A61M2205/50
摘要： An electronically monitored angioplasty system is provided with a verifier circuit to verify the operation of conversion circuitry for converting an electrical pressure signal from a pressure transducer to a displayed numerical value on a digital read-out. The verifier circuit is selectively activated to offset the displayed numerical value by a predetermined amount and upon deactivation the displayed numerical value returns to the pressure sensed by the pressure transducer in the balloon. In one embodiment, a reference signal to the conversion circuitry is selectively offset by a signal corresponding to the predetermined amount and in another embodiment the electrical pressure signal itself is selectively offset by a reference signal corresponding to the predetermined amount. In another aspect of the system, an audible balloon deflation indicator circuit sounds a pleasant signal that the pressure within the balloon has fallen below a threshold pressure so the doctor need not divert attention from the patient.
摘要翻译： 电子监测的血管成形术系统设置有验证器电路，以验证转换电路的操作，用于将来自压力换能器的电压信号转换为数字读出时的显示数值。 验证器电路被选择性地激活以将显示的数值偏移预定量，并且在停用时，显示的数值返回到由气囊中的压力传感器感测的压力。 在一个实施例中，对转换电路的参考信号被选择性地偏移与预定量相对应的信号，并且在另一个实施例中，电压信号本身被对应于预定量的参考信号选择性偏移。 在系统的另一方面，可听见的气球放气指示器电路听到令人愉快的信号，即气囊内的压力已经降到阈值压力以下，所以医生不需要转移患者的注意力。
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公开(公告)号：US4883062A
公开(公告)日：1989-11-28
申请号：US186086
申请日：1988-04-25
申请人： Warren B. Nicholson
发明人： Warren B. Nicholson
IPC分类号： A61B5/0215 , G01D5/26 , G01K11/12
CPC分类号： A61B5/02154 , G01D5/268 , G01K11/12
摘要： An interference edge filter is mounted on the end of an optical fiber to provide a sensor for pressure or temperature. The filter is formed such that the transition slope of the filter curve will move to the left or right depending upon the changes in the parameter being monitored. The shift in the position of the slope of the edge filter curve is detected by passing the reflected light through an interference bandpass filter having an edge slope intersecting the transition slope and measuring the intensity of the light passing the bandpass filter.
摘要翻译： 干涉边缘滤波器安装在光纤的端部，以提供用于压力或温度的传感器。 过滤器形成为使得过滤器曲线的过渡斜率将根据被监测参数的变化向左或向右移动。 通过使反射光通过具有与过渡斜率相交的边缘斜率的干涉带通滤波器并测量通过带通滤波器的光的强度来检测边缘滤波器曲线的斜率位置的偏移。
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