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1. 发明授权

US06241480B1 Micro-magnetohydrodynamic pump and method for operation of the same 失效
标题翻译：微磁流体动力泵及其运行方法
公开(公告)号：US06241480B1
公开(公告)日：2001-06-05
申请号：US09472646
申请日：1999-12-27
申请人： Charles Ye Yingjie Chu , Guann Pyng Li
发明人： Charles Ye Yingjie Chu , Guann Pyng Li
IPC分类号： F04F1100
CPC分类号： F04F99/00 , F04B7/00 , F04B17/044 , F04B19/006
摘要： A micropump fabricated in a planar substrate is provided with a valving chamber which is communicated to a pumping chamber. The valving chamber has an inlet and outlet port. Both the valving chamber and pumping chamber have a liquid, electrically conductive piston disposed therein, which liquid piston is nonmiscible with the pumped working fluid and nonreactive with the substrate in which the chambers are formed. The valving piston is magnetohydrodynamically driven to selectively close either the inlet port or the outlet port. The pumping piston is magnetohydrodynamically driven to pull or push the working fluid through one of the inlet or outlet ports, through the valving chamber, into the pumping chamber, back out of the pumping chamber and through the other one of the inlet or outlet ports after activation of the valving piston. Both direct current and inductive magnetohydrodynamic drives are contemplated. The valving and/or pumping chambers may be shaped or narrowed in their dimensions to impose a mechanical bias on the respective valving and/or pumping pistons to assume a preferred position in their respective chambers when the magnetohydrodynamic drive is turned off.
摘要翻译：在平面基板中制造的微型泵设置有阀室，其连通到泵送室。阀室具有入口和出口。阀室和泵送室均具有设置在其中的液体导电活塞，该液体活塞与泵送的工作流体不可混合，并且与形成腔室的基板不反应。阀门活塞被磁流体动力驱动以选择性地关闭入口端口或出口端口。泵送活塞被磁流体动力驱动以将工作流体通过其中一个入口或出口端口，通过阀门室进入泵送室，从泵送室返回并通过另一个入口或出口端口启动阀门活塞。考虑了直流和感应磁流体动力传动。阀门和/或泵送室可以在其尺寸上成形或变窄，以在相应的阀门和/或泵送活塞上施加机械偏置，以在磁流体动力传动装置关闭时在其各自的室中呈现优选位置。

2. 发明授权

US08617143B2 Therapeutic agent delivery systems and devices 有权
标题翻译：治疗剂递送系统和装置
公开(公告)号：US08617143B2
公开(公告)日：2013-12-31
申请号：US11952626
申请日：2007-12-07
申请人： Mark Bachman , Baruch Kuppermann , Asheesh Divetia , Guann Pyng Li
发明人： Mark Bachman , Baruch Kuppermann , Asheesh Divetia , Guann Pyng Li
IPC分类号： A61K9/22
CPC分类号： A61K9/0024 , A61F9/0017 , A61K9/025
摘要： Devices, systems and methods for delivering pre-determined quantities of an active ingredient to a biological system are provided. In various embodiments, a device for controlled release of an active ingredient is provided, including a release aperture operably associated with a deflectable member, a base with a porous membrane substrate layer, and at least one chamber juxtaposed between the release aperture and the porous membrane layer. The chamber may contain a matrix including one or more active ingredients and an agent that expands when contacted with an aqueous solution. The device is suitable for implantation in a biological system and can be used for delayed and/or time release of specific drug dosages for various indications.
摘要翻译：提供了将预定量的活性成分输送到生物系统的装置，系统和方法。在各种实施例中，提供了用于控制释放活性成分的装置，包括与可偏转构件可操作地相关联的释放孔，具有多孔膜基底层的基底和并置在释放孔和多孔膜之间的至少一个腔室层。该室可以含有包含一种或多种活性成分的基质和当与水溶液接触时膨胀的试剂。该装置适于植入生物系统中，并且可用于各种适应症的特定药物剂量的延迟和/或时间释放。

3. 发明申请

US20080177153A1 THERAPEUTIC AGENT DELIVERY SYSTEMS AND DEVICES 有权
标题翻译：治疗剂递送系统和设备
公开(公告)号：US20080177153A1
公开(公告)日：2008-07-24
申请号：US11952626
申请日：2007-12-07
申请人： Mark Bachman , Baruch Kupperman , Asheesh Divetia , Guann Pyng Li
发明人： Mark Bachman , Baruch Kupperman , Asheesh Divetia , Guann Pyng Li
IPC分类号： A61K9/22 , A61B5/00 , A61F9/00
CPC分类号： A61K9/0024 , A61F9/0017 , A61K9/025
摘要： Devices, systems and methods for delivering pre-determined quantities of an active ingredient to a biological system are provided.
摘要翻译：提供了将预定量的活性成分输送到生物系统的装置，系统和方法。

4. 发明授权

US07408752B2 On-chip ESD protection circuit for compound semiconductor heterojunction bipolar transistor RF circuits 有权
标题翻译：用于化合物半导体异质结双极晶体管RF电路的片上ESD保护电路
公开(公告)号：US07408752B2
公开(公告)日：2008-08-05
申请号：US11755631
申请日：2007-05-30
申请人： Yin Tat Ma , Guann Pyng Li
发明人： Yin Tat Ma , Guann Pyng Li
IPC分类号： H02H9/00 , H02H3/20 , H02H9/04 , H02H3/22 , H02H7/00
CPC分类号： H01L27/0255 , H01L27/0259
摘要： A low loading capacitance on-chip electrostatic discharge (ESD) protection circuit for compound semiconductor power amplifiers is disclosed, which does not degrade the circuit RF performance. Its principle of operation and simulation results regarding capacitance loading, leakage current, degradation to RF performance are disclosed. The design, loading effect over frequency, robustness over process and temperature variation and application to an RF power amplifier is presented in detail. The ESD circuit couples an input to ground during ESD surges through a diode string coupled to the input, and a transistor switch or Darlington pair having its gate coupled to and triggered by the diode string. The Darlington pair couples the input to ground when triggered through a low impedance path in parallel to the diode string. A reverse diode also couples ground to the input on reverse surges.
摘要翻译：公开了用于复合半导体功率放大器的低负载电容片上静电放电（ESD）保护电路，其不会降低电路RF性能。公开了其关于电容负载，漏电流，RF性能劣化的操作和仿真结果原理。详细介绍了频率的设计，负载效应，过程鲁棒性和温度变化以及RF功率放大器的应用。 ESD电路在ESD浪涌期间通过耦合到输入的二极管串耦合输入到地，以及晶体管开关或达林顿对，其栅极耦合到二极管串并由二极管串触发。当通过与二极管串并联的低阻抗路径触发时，达林顿对将输入耦合到地。反向二极管也将接地连接到反向浪涌的输入。

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