公开(公告)号：US5235988A

公开(公告)日：1993-08-17

申请号：US731125

申请日：1991-07-15

申请人： David S. Johnson ,  Alfred G. Evans

发明人： David S. Johnson ,  Alfred G. Evans

IPC分类号： A61B5/107 ,  A61B19/00 ,  G01B5/18

CPC分类号： G01B5/18 ,  A61B5/1077 ,  A61B2090/062

摘要： A device for evaluating the surface contour of various body parts which may measure surface elevation or depth of depressions and cavities. The device includes a body portion having a plurality of legs extending downwardly to position the device on a body part such as the skull. A slidable member having a calibrated scale thereon is positioned in a slot in the body of the device. An indexer is provided to indicate the distance the slidable member moves so that surface elevations or depressions may be evaluated.

摘要翻译： 用于评估各种身体部位的表面轮廓的装置，其可以测量凹陷和空腔的表面高度或深度。 该装置包括主体部分，其具有向下延伸的多个腿部，以将装置定位在诸如颅骨的身体部位上。 在其上具有校准刻度的可滑动构件定位在装置的主体中的狭槽中。 提供分度器以指示可滑动构件移动的距离，使得可以评估表面高度或凹陷。

公开(公告)号：US5022273A

公开(公告)日：1991-06-11

申请号：US535849

申请日：1990-06-11

申请人： Alfred G. Evans

发明人： Alfred G. Evans

IPC分类号： G01N3/20

CPC分类号： G01N3/20

摘要： An apparatus and method is disclosed for determining the bending strength of curved surgical needles. The apparatus includes a means to releasably grip the butt end portion of the needle connected to a rotatable flywheel. A knife edge is positioned in the path of the rotating needle and engaged thereby, while a load cell to which the knife edge is connected, generates signals in dependence upon the bending movements applied to the needle. Such signals are transmitted to appropriate monitoring and recording instrumentation. The rotation of the needle with respect to a center of rotation and with respect to the knife edge are maintained to within precise limitations.

摘要翻译： 公开了一种用于确定弯曲外科手术针的弯曲强度的装置和方法。 该装置包括可释放地夹持连接到可旋转飞轮的针的对接端部的装置。 刀刃定位在旋转针的路径中并与之啮合，而连接刀刃的测力传感器根据施加到针的弯曲运动产生信号。 这样的信号被传送到适当的监视和记录仪器。 相对于旋转中心并且相对于刀刃的针的旋转保持在精确的限制内。

公开(公告)号：USD341330S

公开(公告)日：1993-11-16

申请号：US826161

申请日：1992-01-23

申请人： Joseph T. Remo ,  Alfred G. Evans ,  Paul O. Rawson

设计人： Joseph T. Remo ,  Alfred G. Evans ,  Paul O. Rawson

公开(公告)号：US5297440A

公开(公告)日：1994-03-29

申请号：US959274

申请日：1992-10-09

申请人： Said A. Rizk ,  Alfred G. Evans

发明人： Said A. Rizk ,  Alfred G. Evans

IPC分类号： A61B17/06 ,  G01N3/02 ,  G01N3/20

CPC分类号： G01N3/20 ,  A61B17/06066 ,  G01N2203/0258

摘要： An apparatus for determining the bending characteristics of a curved surgical needle having a butt end portion and a tip portion including a base support, a clamp for releasably gripping the butt end portion of the needle. A system of stepper motors and related plates is provided for moving the gripped needle along a predetermined path. A load cell is positioned within the predetermined path for engagement by the tip of the needle and for sensing the forces generated by the moving needle tip, and a minimal friction support plate is provided for the load cell to maintain the needle tip at a predetermined location on the load cell while moving the gripped needle.

摘要翻译： 一种用于确定具有对接端部的弯曲外科手术针的弯曲特性的装置和包括基部支撑件的末端部分，用于可释放地夹持针的对接端部的夹具。 提供步进电机和相关板的系统，用于沿着预定的路径移动夹持的针。 称重传感器定位在预定路径内，用于由针的尖端接合并且用于感测由移动的针尖产生的力，并且为测力传感器提供最小摩擦支撑板以将针尖保持在预定位置 在移动夹持针时在称重传感器上。

公开(公告)号：US5181416A

公开(公告)日：1993-01-26

申请号：US541055

申请日：1990-06-20

申请人： Alfred G. Evans

发明人： Alfred G. Evans

IPC分类号： G01N3/58

CPC分类号： G01N3/58

摘要： An apparatus and method to determine the sharpness of a curved surgical needle point by a measurement of the perpendicular forces required to push the needle point through a supported membrane at a given rate of penetration. The apparatus includes a needle penetration fixture having a needle penetrable membrane, a load cell, and related control and recordation instrumentation. According to the method a needle is mounted on a rotatable fixture and first precisely aligned. Thereafter, the fixture is rotated so as to cause the needle to penetrate the membrane whereby the force necessary to penetrate the membrane force being recorded by recordation instrumentation and the process being controlled by control instrumentation.

摘要翻译： 通过测量按照给定的穿透速度将针尖推压穿过支撑的膜所需的垂直力来确定弯曲外科手术针尖的锐度的装置和方法。 该装置包括具有针穿透膜的针穿透固定装置，称重传感器以及相关的控制和记录仪器。 根据该方法，将针安装在可旋转夹具上并且首先精确对准。 此后，旋转夹具以使针穿透膜，由此通过记录仪器记录穿透膜力所需的力，并且该过程由控制仪器控制。