公开(公告)号：US5408577A

公开(公告)日：1995-04-18

申请号：US24187

申请日：1993-02-26

申请人： Jaroy Weber, Jr. ,  Kenneth C. Kitlas

发明人： Jaroy Weber, Jr. ,  Kenneth C. Kitlas

IPC分类号： A61F7/00 ,  F24H1/18 ,  G05D23/24 ,  H05B3/12 ,  H05B3/78 ,  F24H1/10 ,  H05B3/58

CPC分类号： A61F7/0085 ,  F24H1/185 ,  G05D23/2401 ,  H05B3/12 ,  H05B3/78 ,  A61F2007/0074

摘要： An inexpensive, disposable heating element is prepared for medical applications using layers of biologically-compatible materials disposed about a heating element that is formed of an electrically conductive material which exhibits positive temperature coefficient of resistance and that is then operated by a power controller which responds to the resistance of the heating element or to other electrical indication of operating temperature in order to control the level of power supplied to the heating element. A fuse is distributed about the periphery of the heating element to disconnect electrical power from the heating element in response to excessive heating of the element attributable to a portion of the heating element, usually including the periphery, not being immersed in liquid being warmed. A connector to the heating element may include a tab that retains coded manifestations thereon of a measured parameter of the heating element, which manifestations may then be detected upon insertion of the connector into a receptacle of a power controller to provide programming signals that set the operating parameters within which the power controller operates the heating element. A flow controller may be disposed adjacent a surface or surfaces of a heating element to confine the flow of a liquid in a selected pattern over the surface or surfaces of the heating element.

摘要翻译： 制备廉价的一次性加热元件，用于医疗应用，其使用布置在由导电材料形成的加热元件周围的生物相容性材料层，该导电材料呈现正温度系数的电阻，然后由功率控制器操作，功率控制器响应于 加热元件的电阻或工作温度的其他电指示，以便控制供应给加热元件的功率的水平。 保险丝围绕加热元件的周边分布，以响应于由于加热元件的通常包括周边的部分的元件的过度加热而不被浸入被加热的液体中而与加热元件断开电力。 到加热元件的连接器可以包括保持加热元件的测量参数上的编码表现的突片，然后可以在将连接器插入功率控制器的插座中时检测出这些表现，以提供设置操作的编程信号 功率控制器在其中操作加热元件的参数。 流量控制器可以设置在加热元件的表面附近，以将液体的流动限制在加热元件的表面上的选定图案中。

公开(公告)号：US5541705A

公开(公告)日：1996-07-30

申请号：US180219

申请日：1994-01-12

申请人： Michael Kan ,  Kenneth C. Kitlas

发明人： Michael Kan ,  Kenneth C. Kitlas

IPC分类号： G03B7/28 ,  G03B17/48 ,  G03B7/08

CPC分类号： G03B17/48 ,  G03B7/28

摘要： In accordance with the present invention, an apparatus and method are described which in general provide for an extended dynamic range in light sensitivity for an imaging device. This extended dynamic range is achieved primarily through control of the light intensity level in a image on a pixel by pixel basis.In one aspect, a multi-faceted light controller is used like a variable iris camera, but on a pixel by pixel basis; thereby achieving a wider range of intensity control.In another aspect, this system is enhanced by adding another controller outside the feedback loop, before an added output image detector.In yet another aspect, some or most of the elements of the controlling and detecting system may be integrated into a composite monolithic structure.

摘要翻译： 根据本发明，描述了一种装置和方法，其通常为成像装置提供光灵敏度的扩展动态范围。 该扩展动态范围主要通过逐像素地控制图像中的光强度水平来实现。 在一个方面，多面光控制器像可变虹膜相机一样被使用，但是是逐个像素的; 从而实现更宽范围的强度控制。 在另一方面，通过在添加的输出图像检测器之前在反馈回路之外添加另一控制器来增强该系统。 在另一方面，控制和检测系统的一些或大部分元件可以集成到复合单片结构中。

公开(公告)号：US5494043A

公开(公告)日：1996-02-27

申请号：US59425

申请日：1993-05-04

申请人： Martin O'Sullivan ,  Lawrence W. Brendlen, Jr. ,  Donald Q. Dong ,  Jeffrey M. Moser ,  Kenneth H. Mollenauer ,  Kenneth C. Kitlas ,  William J. Kaspari

发明人： Martin O'Sullivan ,  Lawrence W. Brendlen, Jr. ,  Donald Q. Dong ,  Jeffrey M. Moser ,  Kenneth H. Mollenauer ,  Kenneth C. Kitlas ,  William J. Kaspari

IPC分类号： A61B5/021 ,  A61B5/024

CPC分类号： A61B5/02208 ,  A61B5/02233 ,  A61B5/7214 ,  A61B2560/0223 ,  A61B2562/0247

摘要： A sensor that utilizes strips of piezoelectric material to noninvasively measure the surface force/displacement resulting from a blood pressure wave traveling through an artery and transmitted through the arterial wall and overlying tissue, while canceling noise artifact signals is disclosed. Piezoelectric elements create an electrical signal when pressure is applied to their surface. In the preferred embodiment, the sensor is constructed so that there are three sensing elements--a signal sensing element in the center and one noise sensing element on each side of the center element. The center element is placed over an individuals artery, e.g., the radial artery in a persons wrist. When positioned this way, the two noise sensing elements are positioned on each side of the artery.The center element generates a signal that is a function of the pressure wave in the artery, whereas this signal is highly attenuated in the noise sensing elements. However, all three elements detect the noise artifact signals in the general area of the sensor. The area of the noise elements, when combined, is equal to that of the center element. This provides an average of the noise detected by the center element.The signals from the two noise sensing elements are subtracted from the center element signal, thereby canceling the noise in the center element.Also disclosed is a unique method that allows repositioning of the sensor after it has been attached to the patient, a mechanism for maintaining the appropriate hold down pressure, a wrist stabilization device for stabilizing the wrist during monitoring of the blood pressure. The present invention also allows blood pressure calibrations to be obtained using the wrist and arm stabilizer assembly.

摘要翻译： 公开了一种使用压电材料条的传感器来非侵入性地测量由通过动脉行进并通过动脉壁和上覆组织传播的血压波所产生的表面力/位移，同时消除噪声伪像信号。 当压力施加到其表面时，压电元件产生电信号。 在优选实施例中，传感器被构造成使得存在三个感测元件 - 中心处的信号感测元件和在中心元件的每一侧上的一个噪声感测元件。 中心元件放置在个体动脉上，例如人手腕中的桡动脉。 当以这种方式定位时，两个噪声感测元件位于动脉的每一侧。 中心元件产生一个信号，该信号是动脉中的压力波的函数，而该信号在噪声感测元件中被高度衰减。 然而，所有三个元件都检测传感器的一般区域中的噪声伪像信号。 当组合时，噪声元件的面积等于中心元件的面积。 这提供了由中心元件检测到的噪声的平均值。 来自两个噪声感测元件的信号从中心元件信号中减去，从而消除中心元件中的噪声。 还公开了一种独特的方法，其允许传感器在其被附接到患者之后重新定位，用于维持适当的压下压力的机构，用于在监测血压期间稳定手腕的手腕稳定装置。 本发明还允许使用手腕和手臂稳定器组件获得血压校准。