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1. 发明授权

US4557269A Disposable transducer apparatus for an electromanometry system 失效
标题翻译：用于电子测量系统的一次性换能器装置
公开(公告)号：US4557269A
公开(公告)日：1985-12-10
申请号：US506753
申请日：1983-06-22
申请人： Gordon S. Reynolds , Robert J. Todd , Edward J. Russell
发明人： Gordon S. Reynolds , Robert J. Todd , Edward J. Russell
IPC分类号： A61B5/0215 , G01L9/00 , G01L9/06 , A61B5/02
CPC分类号： G01L19/003 , A61B5/0215 , G01L19/0084 , G01L19/148 , G01L9/06 , A61B2562/08
摘要： The disposable transducer includes a small housing constructed of lightweight plastic material. The housing is shaped so as to form a transparent chamber within which is situated a very small piezoresistive strain gauge in the form of a resistive bridge network diffused onto a semiconductor substrate. The semiconductor substrate is electrically isolated by means of a nonconductive gel which partially fills the transparent chamber in which the semiconductor substrate is positioned. The resistive bridge network of the semiconductor substrate is also electrically connected to a plurality of calibration resistors which are separately formed on the semiconductor substrate, making the entire apparatus economically disposable after a single use.
摘要翻译：一次性换能器包括由轻质塑料材料构成的小壳体。壳体被成形为形成透明室，在该透明室内设有以半阻焊桥网形式扩散到半导体衬底上的非常小的压阻应变片。半导体衬底通过部分填充半导体衬底所在的透明室的非导电凝胶电隔离。半导体衬底的电阻性桥接网络也电连接到在半导体衬底上分开形成的多个校准电阻器，使得整个设备在一次使用后经济地是一次性的。

2. 再颁专利

USRE33360E Disposable transducer apparatus for an electromanometry system 失效
标题翻译：用于电子测量系统的一次性传感器装置
公开(公告)号：USRE33360E
公开(公告)日：1990-10-02
申请号：US131161
申请日：1987-12-10
申请人： Gordon S. Reynolds , Robert J. Todd , Edward J. Russell
发明人： Gordon S. Reynolds , Robert J. Todd , Edward J. Russell
IPC分类号： A61B5/0215 , G01L9/00 , G01L9/06
CPC分类号： G01L19/003 , A61B5/0215 , G01L19/0084 , G01L19/148 , G01L9/06 , A61B2562/08
摘要： The disposable transducer includes a small housing constructed of lightweight plastic material. The housing is shaped so as to form a transparent chamber within which is situated a very small piezoresistive strain gauge in the form of a resistive bridge network diffused onto a semiconductor substrate. The semiconductor substrate is electrically isolated by means of a nonconductive gel which partially fills the transparent chamber in which the semiconductor substrate is positioned. The resistive bridge network of the semiconductor substrate is also electrically connected to a plurality of calibration resistors which are separately formed on the semiconductor substrate, making the entire apparatus economically disposable after a single use.

3. 发明授权

US4335729A Apparatus and method for suppressing resonance in an electromanometry system 失效
标题翻译：用于抑制电子测量系统中的共振的装置和方法
公开(公告)号：US4335729A
公开(公告)日：1982-06-22
申请号：US129495
申请日：1980-03-11
申请人： Gordon S. Reynolds , Robert J. Todd
发明人： Gordon S. Reynolds , Robert J. Todd
IPC分类号： G01L7/18 , A61B5/02 , A61B5/0215 , A61M5/168 , F16K27/02
CPC分类号： A61M5/16877 , A61B5/0215 , F16K27/0254 , Y10S251/903
摘要： A novel apparatus and method for suppressing unwanted resonance in an electromanometry system. The apparatus includes a compliant air cavity connected through a variable impedance device which is coupled in parallel to the liquid-filled catheter of the electromanometry system. By varying the hydraulic impedance through which the compliant air cavity is coupled to the system, precise impedance matching capability is provided over a wide range of hydraulic impedance values, thereby permitting suppression of unwanted resonance and improved frequency response of recorded waveforms in a wide variety of catheter-transducer systems.
摘要翻译：一种用于抑制电子测量系统中的不期望的共振的新型装置和方法。该装置包括通过可变阻抗装置连接的柔性空气腔，该可变阻抗装置并联耦合到电子测量系统的液体填充导管。通过改变柔性空气腔耦合到系统的液压阻抗，在宽范围的液压阻抗值上提供精确的阻抗匹配能力，从而允许抑制不期望的共振和改善各种各样的记录波形的频率响应导管换能器系统。

4. 发明授权

US4395260A Drip chamber 失效
标题翻译：滴水室
公开(公告)号：US4395260A
公开(公告)日：1983-07-26
申请号：US269937
申请日：1981-06-01
申请人： Robert J. Todd , Gordon S. Reynolds
发明人： Robert J. Todd , Gordon S. Reynolds
IPC分类号： A61M5/14 , A61M5/162 , A61M5/16
CPC分类号： A61M5/1411 , A61M5/162
摘要： An apparatus and method for effectively eliminating the risk of introducing air bubbles into a fluid delivery system such as to administer parenteral fluids to a patient. The apparatus comprises a baffle positioned within a drip chamber for deflecting fluid expelled from a fluid resistor in order to eliminate turbulence and the formation of micro-bubbles during rapid filling or flushing of the fluid delivery system. The drip chamber also comprises a filter membrane positioned across the outlet of the drip chamber. The filter membrane is attached to a filter carrier assembly which enables the filter membrane to be momentarily displaced so that air bubbles trapped beneath the filter membrane may escape.
摘要翻译：一种用于有效消除将气泡引入流体输送系统的风险的设备和方法，例如向患者施用肠胃外流体。该装置包括位于滴水室内的挡板，用于偏转从流体电阻器排出的流体，以便在快速填充或冲洗流体输送系统期间消除湍流和形成微气泡。滴水室还包括位于滴水室出口两端的过滤膜。过滤膜连接到过滤器载体组件上，其使过滤膜瞬时移位，使得捕获在过滤膜下方的气泡可能逸出。

5. 发明授权

US4282881A Manometer for infusion apparatus 失效
标题翻译：输液器压力计
公开(公告)号：US4282881A
公开(公告)日：1981-08-11
申请号：US37614
申请日：1979-05-10
申请人： Robert J. Todd , Gregg H. Smith , Gordon S. Reynolds
发明人： Robert J. Todd , Gregg H. Smith , Gordon S. Reynolds
IPC分类号： A61B5/0215 , A61M5/168 , G01F1/38 , A61B5/02
CPC分类号： G01F1/386 , A61B5/0215 , A61M5/16854 , A61M2205/3348
摘要： A manometer for measuring the hydrodynamic pressure of fluids parenterally administered to a patient. The manometer includes a transparent housing which has a passageway formed in the housing that accommodates continuous flow of fluid therethrough. A pressure measuring chamber is formed in the housing and one end of the pressure measuring chamber is in fluid communication with the passageway. The other end of the pressure measuring chamber communicates with an enclosed air space. The fluid flowing through the passageway enters the pressure measuring chamber and rises to a level which is dependent upon the pressure of the fluid flowing through the passageway. Markings are provided on the housing of the manometer which permit the pressure exerted on the fluid flowing through the passageway to be read directly from the level of the fluid in the pressure measuring chamber. In one embodiment of the manometer, the enclosed air space may be adjusted so that the manometer may be normalized for use at any one of several different altitudes. A valve is provided so that the enclosed air space may be vented to the ambient atmosphere when it is desired to set the pressure reading to zero. In another embodiment of the manometer, the pressure measuring chamber is provided with a progressively decreasing cross-sectional flow area from its bottom to its top so that the pressure may be read in a linear fashion.
摘要翻译：用于测量肠胃外给予患者的流体的流体动力学压力的压力计。压力计包括透明壳体，其具有形成在壳体中的通道，其容纳流体的连续流动。压力测量室形成在壳体中，压力测量室的一端与通道流体连通。压力测量室的另一端与封闭的空气空间连通。流过通道的流体进入压力测量室并升高到取决于流过通道的流体的压力的水平。标记设置在压力计的壳体上，允许施加在流过通道的流体上的压力直接从压力测量室中的流体的水平读取。在压力计的一个实施例中，可以调节封闭的空气空间，使得压力计可以被标准化以在几个不同的高度中的任何一个处使用。设置阀，使得当需要将压力读数设置为零时，封闭的空气空间可以排放到环境大气中。在压力计的另一实施例中，压力测量室具有从其底部到其顶部逐渐减小的横截面流动面积，使得压力可以以线性方式读取。

6. 发明授权

US4269387A Needle valve and method of manufacturing a needle valve 失效
标题翻译：针阀和制造针阀的方法
公开(公告)号：US4269387A
公开(公告)日：1981-05-26
申请号：US62872
申请日：1979-08-01
申请人： Gordon S. Reynolds , Robert J. Todd
发明人： Gordon S. Reynolds , Robert J. Todd
IPC分类号： A61B5/0215 , A61M5/168 , F16K27/02 , F16K41/00
CPC分类号： F16K27/0254 , A61B5/0215 , A61M5/16877 , Y10S251/903
摘要： A needle valve and a method of manufacturing the needle valve. The needle valve has a metal needle with a leading end that is elongated and tapered so as to provide carefully restricted fluid flow along the length of the tapered end. A portion of the needle is threaded so that the position of the tapered end may be adjusted by screwing the needle. A housing for the needle is manufactured by placing the needle into a mold. The housing is then injection molded around portions of the metal needle. The molded housing forms an inlet port around the tapered end of the needle and a collar around the threaded portion of the needle. An outlet port is molded adjacent to the tapered end and is in fluid communication with the inlet port of the housing. As the housing cools, the plastic shrinks thus conforming the inlet port to the tapered end of the metal needle and creating a hermetic seal around the tapered end. A plastic knob is also molded onto the opposite end of the metal needle. The plastic knob may be rotated so that the tapered end of the needle may be screwed into or out of the inlet port of the plastic housing in order to control fluid flow therethrough.
摘要翻译：针阀及针阀的制造方法。针阀具有金属针，其前端是细长的和锥形的，以便沿锥形端的长度提供严格限制的流体流动。针的一部分是螺纹的，使得可以通过拧紧针来调节锥形端的位置。通过将针放置在模具中来制造用于针的壳体。然后将壳体注射到金属针的一部分周围。模制的壳体形成围绕针的锥形端的入口和围绕针的螺纹部分的套环。出口端口与锥形端部相邻地模制，并且与壳体的入口流体连通。当壳体冷却时，塑料收缩，使得入口端口与金属针头的锥形端相吻合，并在锥形端部周围产生气密密封。塑料把手也被模制到金属针的另一端上。塑料旋钮可以旋转，使得针的锥形端可以拧入塑料壳体的入口或从塑料壳体的入口旋出，以便控制流体流过其中。

7. 发明授权

US5876383A Cannula 失效
标题翻译：插管
公开(公告)号：US5876383A
公开(公告)日：1999-03-02
申请号：US940745
申请日：1997-09-30
申请人： Robert K. Grooters , Robert J. Todd
发明人： Robert K. Grooters , Robert J. Todd
IPC分类号： A61M25/00
CPC分类号： A61M25/0068 , A61M2210/127 , A61M25/0021
摘要： An improved aortic cannula is provided for use in heart bypass surgery. The cannula includes an elongated tube with a terminal end. The terminal end has a ramped surface leading to the discharge opening, with a lip extending approximately 70.degree.-90.degree. to the longitudinal axis of the cannula at the bottom of the discharge opening. The curved surface and lip cause the blood to exit the cannula opening in a direction approximately 70.degree.-90.degree. from the longitudinal axis of the cannula, and in a direction toward the ascending aorta. With the improved cannula of the present invention, no blood is directed towards the aortic arch, thereby minimizing the risk of stroke from dislodged plaque commonly found in the aortic arch. The curved surface of the terminal end also reduces the blood flow turbulence, thereby decreasing pressure requirements. The width of the opening allows blood to be discharged in a broadcast band with a radius of approximately 90.degree..
摘要翻译：提供改进的主动脉插管用于心脏旁路手术。套管包括具有终端的细长管。终端具有通向排出口的倾斜表面，在排出口的底部，唇缘延伸大约70°-90°至套管的纵向轴线。弯曲的表面和唇缘使得血液从插管的纵向轴线大约70°-90°的方向上离开插管开口，并且朝向上升主动脉的方向。利用本发明的改进插管，没有血液被引导到主动脉弓，从而最小化主动脉弓中通常发现的移位斑块的中风风险。终端的弯曲表面也减少血流紊流，从而降低压力要求。开口的宽度允许血液以约90度的半径的广播频带排出。

8. 发明授权

US5324253A Cannula apparatus and system for heparin removal from blood 失效
标题翻译：用于从血液中去除肝素的插管装置和系统
公开(公告)号：US5324253A
公开(公告)日：1994-06-28
申请号：US844240
申请日：1992-03-02
申请人： James C. McRea , Robert J. Todd
发明人： James C. McRea , Robert J. Todd
IPC分类号： A61M25/00 , A61M25/01
CPC分类号： A61M25/0026 , A61M1/3659 , A61M1/3675 , A61M2025/0031 , A61M2025/0037 , A61M25/005
摘要： A system for selective removal of certain components from plasma drawn from a patient comprises an extracorporeal blood circulation circuit and a cannula. The extracorporeal blood circulation circuit has an uptake line for transporting blood from the patient, a plasma separator, and a return line connected to the plasma separator for transporting selectively depleted blood from the plasma separator to the patient. The plasma separator is connected to the uptake line for receiving the blood, selectively removing plasma components (e.g., heparin) by separating plasma from whole blood and interfacing such plasma with an adsorption substrate, recombining depleted plasma, and reinfusing selectively depleted blood into the return line for transport to the patient. The cannula has an uptake conduit with an intake end and an exit end, and a return conduit, connected to the uptake conduit, with an outflow end and an entry end. The exit end is connected to the uptake line of the bypass circuit and the entry end is connected to the return line of the bypass circuit. Structure at the outflow end of the return conduit alters the direction of flow and directs selectively depleted blood being returned to the patient into the right atrium of the patient's heart when the intake end of the uptake conduit is disposed within the patient's inferior vena cava. An alternative cannula with washers may be inserted into a venous return cannula whereby recirculation and pooling of the selectively depleted blood is prevented.
摘要翻译：从患者抽取的血浆中选择性地去除某些组分的系统包括体外血液循环回路和套管。体外血液循环回路具有用于输送来自患者的血液的吸收线，血浆分离器和连接到血浆分离器的返回管线，用于将选择性排出的血液从血浆分离器输送到患者。等离子体分离器连接到吸收管线用于接收血液，通过从全血中分离血浆并将这种血浆与吸附底物相接合，选择性地除去血浆成分（例如肝素），将耗竭的血浆重新结合并将选择性耗尽的血液重新输入回流线路运送到病人。套管具有吸入端和出口端的吸入导管和连接到吸收管道的返回管道，其具有流出端和入口端。出口端连接到旁路电路的吸收线，入口端连接到旁路回路的返回线。当吸入导管的进气端设置在患者的下腔静脉内时，返回管道的流出端处的结构改变流动的方向并且将选择性地耗尽的血液返回到病人的右心房。具有垫圈的替代插管可以插入到静脉回流插管中，从而防止了选择性耗尽的血液的再循环和汇集。

9. 外观设计

USD308213S Electric robot 失效
公开(公告)号：USD308213S
公开(公告)日：1990-05-29
申请号：US106706
申请日：1987-10-06
申请人： Gary L. Jones , Robert J. Todd , Norman N. Fender , Dale A. Wood , Alexander Bally
设计人： Gary L. Jones , Robert J. Todd , Norman N. Fender , Dale A. Wood , Alexander Bally

10. 发明授权

US4804359A Cardiovascular cannula and obturator 失效
标题翻译：心血管套管和闭孔器
公开(公告)号：US4804359A
公开(公告)日：1989-02-14
申请号：US112723
申请日：1987-10-23
申请人： Ronald P. Grunwald , Robert J. Todd
发明人： Ronald P. Grunwald , Robert J. Todd
IPC分类号： A61M1/36 , A61M25/00 , A61M39/10 , A61M5/00
CPC分类号： A61M1/3653 , A61M1/3659 , A61M25/0068 , A61M25/0074 , A61M25/007 , A61M25/0071
摘要： An improved venous cannula and obturator for interconnecting the superior and the inferior vena cava to the venous return line of a heart-lung machine. The cannula includes a pair of resilient, divergent hollow branches. The branches are of unequal length. The longer branch is to be received within the inferior vena cava and the shorter branch is to be received in the superior vena cava. The open branch ends are thus longitudinally staggered when the branches are clamped together by the obturator to facilitate insertion of the branch ends through a single incision within the atrium and ultimate disposition of the branches in the superior and inferior vena cavae. The obturator includes an elongated rod with a hub having a pair of axial legs to be received within the branches of the cannula. The obturator is provided to be slidably received with minimal frictional resistance within the interior lumen of the cannula and the cannula branches. The obturator includes features to minimize frictional resistance to axial movement of the obturator in the cannula, and that facilitate release of the cannula branches to separate within the atrium.
摘要翻译：一种改善的静脉插管和闭孔器，用于将上腔静脉和下腔静脉与心肺机的静脉回流管相互连接。套管包括一对弹性，发散的中空分支。分支长度不等。较长的分支将在下腔静脉内接受，较短的分支将被接受在上腔静脉。因此，当分支由闭塞器夹紧在一起时，开放的分支端部纵向交错，便于分支端部通过心房内的单个切口插入，并且在上腔静脉和下腔静脉中分支的最终布置。闭孔器包括细长杆，其具有毂，所述毂具有一对轴向支脚，以被容纳在套管的分支内。闭塞器设置成在插管的内腔和套管分支内以最小的摩擦阻力可滑动地容纳。闭塞器包括使闭塞器在套管中的轴向移动的摩擦阻力最小化的特征，并且便于插管分支在心房内分离的释放。

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