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    • 41. 发明授权
    • H-bridge pulse generator
    • H桥脉冲发生器
    • US08509031B2
    • 2013-08-13
    • US12800945
    • 2010-05-26
    • Stephen Smith
    • Stephen Smith
    • H04B1/02
    • B06B1/0269B06B1/0215
    • Circuitry for high-power, high-frequency excitation of electromagnetic acoustic transducers (EMAT) without the use of a matching transformer is described. This circuit contains at least 4 switching devices, arranged in an H-Bridge configuration to drive EMATs over a range of frequencies. The switching devices can be connected in parallel with respect to the H-Bridge and switched in sequence for greater power output and variety of wave forms including, Churp, Hemming window tone burst, rectangular tone burst and Barker Code wave forms. A circuit for driving sensor coils of an EMAT to correct the disadvantages of conventional pulsers. A plurality of switching devices are connected in parallel and augmented with support circuitry to provide increased power output, stability, reduced noise and complex output wave forms. This design provides for the application of modulated pulses such as multi-pulse, multi-frequency bursts with peak power outputs over 20,000 watts and frequencies over 10,000 Hertz.
    • 描述了不使用匹配变压器的电磁声换能器(EMAT)的高功率,高频激励电路。 该电路包含至少4个开关器件,以H桥配置布置,以在一定频率范围内驱动EMAT。 开关设备可以相对于H桥并联连接并且按顺序交换以获得更大的功率输出和各种波形,包括Churp,Hemming窗口音突发,矩形色调和Barker码波形。 用于驱动EMAT的传感器线圈以校正传统脉冲发生器的缺点的电路。 多个开关装置并联连接并用支持电路增加以提供增加的功率输出,稳定性,降低的噪声和复杂的输出波形。 该设计提供了调制脉冲的应用,例如多脉冲,多频突发,峰值功率输出超过20,000瓦,频率超过10,000赫兹。
    • 42. 发明授权
    • Control device for surgical stoma
    • 手术造口用控制装置
    • US08192410B2
    • 2012-06-05
    • US12540110
    • 2009-08-12
    • Stephen SmithDeborah Smith
    • Stephen SmithDeborah Smith
    • A61M1/00
    • A61F5/445
    • A control device for controlling drainage of waste from a surgical stoma of a human body. The control device comprises a first cylindrical hollow body member, a drain tube extending from the first cylindrical hollow body member, a second cylindrical hollow body member rotatably coupled to the first cylindrical hollow body member and a knob configured on the second cylindrical hollow body member. The first cylindrical hollow body member comprises a skirt portion extending radially outward for being removably attached to a surface surrounding the surgical stoma of the human body. The second cylindrical hollow body member comprises an aperture configured on the second sidewall. A rotation of the knob is capable of aligning the aperture of the second cylindrical hollow body member with the drain tube of the first cylindrical hollow body member thereby forming a passage for draining the waste.
    • 一种用于控制来自人体手术造口的废物排出的控制装置。 控制装置包括第一圆柱形中空本体构件,从第一圆柱形中空本体构件延伸的排水管,可旋转地联接到第一圆柱形中空本体构件的第二圆柱形中空本体构件和构造在第二圆柱形中空本体构件上的旋钮。 第一圆柱形中空本体构件包括径向向外延伸的裙部,用于可拆卸地附接到围绕人体手术造口的表面。 第二圆柱形中空本体构件包括构造在第二侧壁上的孔。 旋钮的旋转能够使第二圆柱形中空本体构件的孔与第一圆柱形中空本体构件的排放管对准,从而形成用于排出废物的通道。
    • 45. 发明申请
    • AUTOMATIC ISOTHERMAL TITRATION MICROCALORIMETER APPARATUS AND METHOD OF USE
    • 自动同位素微量滴定仪装置及其使用方法
    • US20100135853A1
    • 2010-06-03
    • US12326300
    • 2008-12-02
    • MARTIN BROGAPhillip PriceStephen Smith
    • MARTIN BROGAPhillip PriceStephen Smith
    • G01N25/20
    • G01N25/4873B01L3/02G01K17/006G01N1/14G01N25/20G01N25/48G01N25/4813G01N25/4866G01N35/00584G01N35/0092G01N35/1002
    • Automated isothermal titration micro calorimetry (ITC) system comprising a micro calorimeter with a sample cell and a reference cell, the sample cell is accessible via a sample cell stem and the reference cell is accessible via a reference cell stem. The system further comprises an automatic pipette assembly comprising a syringe with a titration needle arranged to be inserted into the sample cell for supplying titrant, the pipette assembly comprises an activator for driving a plunger in the syringe, a pipette translation unit supporting the pipette assembly and being arranged to place pipette in position for titration, washing and filling operations, a wash station for the titrant needle, and a cell preparation unit arranged to perform operations for replacing the sample liquid in the sample cell when the pipette is placed in another position than the position for titration.
    • 自动等温滴定微量热法(ITC)系统,其包括具有样品池和参比细胞的微量热计,样品池可通过样品细胞茎进行,参考细胞可通过参考细胞茎进入。 所述系统还包括自动移液管组件,其包括具有滴定针的注射器,所述滴定针被布置成插入到所述样品池中用于供应滴定剂,所述移液管组件包括用于驱动所述注射器中的柱塞的活化剂,支持所述移液管组件的移液管平移单元, 布置成将移液管放置在适当位置用于滴定,洗涤和灌装操作,用于滴定针的洗涤台,以及细胞制备单元,其被配置为当移液管放置在另一位置时执行替换样品池中的样品液体的操作, 滴定的位置。