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41. 发明申请

US20070055224A1 Intralumenal microwave device 审中-公开
标题翻译：肠内微波装置
公开(公告)号：US20070055224A1
公开(公告)日：2007-03-08
申请号：US11502783
申请日：2006-08-11
申请人： Fred Lee , Christopher Brace , Paul Laeseke , Daniel Weide , Deepak Gopal , Patrick Pfau , Lisa Sampson
发明人： Fred Lee , Christopher Brace , Paul Laeseke , Daniel Weide , Deepak Gopal , Patrick Pfau , Lisa Sampson
IPC分类号： A61B18/18 , A61F2/00 , A61N1/00
CPC分类号： A61B18/1815 , A61B18/18 , A61B2017/00084 , A61B2017/22068 , A61B2018/00023 , A61B2018/1861 , A61B2090/378 , A61N5/045
摘要： A microwave device that can be used to effectively treat esophageal pathologies comprises a coaxial, triaxial or quadraxial microwave antenna housed in an esophageal dilator or balloon. The device can be introduced into the esophagus alongside or through an endoscope, and will deliver microwave energy to tissue. This energy heats the affected tissue, which subsequently undergoes necrosis thereby eliminating the potential of the tissue to undergo malignant transformation. The dilator or balloon is used to keep the antenna in the center of the lumen allowing for symmetrical heating of the esophagus. The depth of penetration of the coagulation effect can be varied depending on the amount of power that is applied, the location of the antenna relative to the tissue, and the duration of the power application.
摘要翻译：可用于有效治疗食管病变的微波装置包括容纳在食管扩张器或气囊中的同轴，三轴或四周微波天线。该装置可以在内窥镜旁边或通过内窥镜引入食道中，并将微波能量传递给组织。该能量加热受影响的组织，其随后发生坏死，从而消除组织经历恶性转化的潜力。扩张器或气囊用于将天线保持在管腔的中心，允许对食管的对称加热。凝结效果的穿透深度可以根据所施加的功率的量，天线相对于组织的位置以及电力施加的持续时间而变化。

42. 发明申请

US20060132257A1 EMI filter and frequency filters having capacitor with inductance cancellation loop 有权
标题翻译： EMI滤波器和具有电感消除回路的电容器的滤波器
公开(公告)号：US20060132257A1
公开(公告)日：2006-06-22
申请号：US11013930
申请日：2004-12-17
申请人： Shuo Wang , Fred Lee , Williem Odendaal
发明人： Shuo Wang , Fred Lee , Williem Odendaal
IPC分类号： H04B3/28 , H03H7/01
CPC分类号： H04B3/28 , H03H7/175 , H03H7/1758 , H03H7/1766 , H03H7/1775 , H03H7/427 , H03H2001/005
摘要： An electromagnetic interference (EMI) filter or frequency filters (e.g. bandpass or band reject filters) in which a capacitor has an inductance cancellation loop. Inductive coupling between capacitors can allow undesired high frequencies to propagate across a filter. This is particularly a concern when the capacitors are oriented in parallel. In the present invention, the inductance cancellation loop is disposed adjacent to one capacitor so that mutual inductance between the capacitors is reduced. The attenuation of the filter at high frequencies is thereby increased. The loop can increase voltage attenuation of an EMI filter by about 20 dB. In another aspect, inductors in the filter are oriented horizontally relative to a circuitboard. Horizontal orientation reduces leakage inductance coupling between the inductors and circuitboard traces, and between the inductor and capacitors, thereby preventing unwanted propagation of high frequencies. Both measures in combination can provide a voltage attenuation increase of 30 dB.
摘要翻译：电磁干扰（EMI）滤波器或频率滤波器（例如带通或带阻滤波器），其中电容器具有电感消除环路。电容器之间的感应耦合可以使不期望的高频率在滤波器上传播。当电容器并联取向时，这尤其值得关注。在本发明中，电感消除环路被设置成与一个电容器相邻，使得电容器之间的互感减小。因此，高频下的滤波器的衰减增加。该环路可以将EMI滤波器的电压衰减提高约20 dB。在另一方面，滤波器中的电感器相对于电路板水平取向。水平方向减小电感器和电路板走线之间以及电感器和电容器之间的漏电感耦合，从而防止高频率的不必要的传播。组合的两种措施都可以提供30 dB的电压衰减。

43. 发明申请

US20060109695A1 Power converters having capacitor resonant with transformer leakage inductance 有权
标题翻译：电容转换器具有电容谐振与变压器漏感
公开(公告)号：US20060109695A1
公开(公告)日：2006-05-25
申请号：US10992227
申请日：2004-11-19
申请人： Yuancheng Ren , Fred Lee , Ming Xu
发明人： Yuancheng Ren , Fred Lee , Ming Xu
IPC分类号： H02M7/757
CPC分类号： H02M3/33592 , H02M3/33569 , Y02B70/1433 , Y02B70/1475
摘要： Power converters having reduced body diode conduction loss, reduced reverse recovery loss and lower switching noise, among other benefits, have a resonant capacitor Cr connected across an unfiltered output. The resonant capacitor Cr resonates with the leakage inductance Lk of the transformer. The resonant capacitor and leakage inductance are selected such that ½ a LC resonance period is equal to an ON time of each secondary switch S1 S2. The resonance provides zero current switching for secondary switches S1 S2, eliminates zero body diode conduction during dead times, and eliminates reverse recovery losses in the secondary switches. The present invention is applicable to many different circuit topologies such as full bridge, active clamp forward, push-pull forward, and center-tap secondary. The present converters provide high energy conversion efficiency and high frequency operation.
摘要翻译：具有降低的体二极管导通损耗，降低的反向恢复损耗和较低开关噪声以及其他优点的功率转换器具有连接在未滤波输出端的谐振电容器Cr。谐振电容器Cr与变压器的漏电感Lk共振。谐振电容器和漏电感被选择为使得LC共振周期的1/2相当于每个次级开关S 1 S 2的导通时间。谐振为次级开关S 1 S 2提供零电流开关，在死区时间消除零体二极管导通，并消除次级开关中的反向恢复损耗。本发明可应用于许多不同的电路拓扑，例如全桥，有源钳前进，推挽前进和中心抽头次级。本转换器提供高能量转换效率和高频操作。

44. 发明申请

US20050010209A1 Radiofrequency ablation system using multiple prong probes 有权
标题翻译：射频消融系统使用多个探头
公开(公告)号：US20050010209A1
公开(公告)日：2005-01-13
申请号：US10911927
申请日：2004-08-05
申请人： Fred Lee , Thomas Winter , Dieter Haemmerich , Lisa Sampson
发明人： Fred Lee , Thomas Winter , Dieter Haemmerich , Lisa Sampson
IPC分类号： A61B18/14
CPC分类号： A61B18/1477 , A61B18/1206 , A61B18/16 , A61B2018/00654 , A61B2018/0075 , A61B2018/00755 , A61B2018/00791 , A61B2018/00797 , A61B2018/00875 , A61B2018/124 , A61B2018/143 , A61B2018/1432 , A61B2018/1467
摘要： Efficient ablation with multiple prong electrodes is obtained by electrically isolating the prongs from each other and rapidly switching electric power between the prongs, between a prong and a ground pad, or both. In this way, power distribution to a tumor can be controlled efficiently without the need to change probe geometry.
摘要翻译：通过将插脚彼此电隔离并快速切换插脚之间，插脚和接地垫之间或两者之间的电力来获得具有多个插脚电极的高效消融。以这种方式，可以有效地控制对肿瘤的功率分配，而不需要改变探针几何形状。

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