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31. 发明申请

US20070279058A1 MAGNETIC RESONANCE IMAGING SYSTEM WITH A CLASS-E RADIO FREQUENCY AMPLIFIER 失效
标题翻译：具有等级无线电频率放大器的磁共振成像系统
公开(公告)号：US20070279058A1
公开(公告)日：2007-12-06
申请号：US11678226
申请日：2007-02-23
申请人： Cherik Bulkes , Stephen Denker , Arthur Beutler
发明人： Cherik Bulkes , Stephen Denker , Arthur Beutler
IPC分类号： G01R33/32 , H03F3/217
CPC分类号： G01R33/34076 , G01R33/34046 , G01R33/3453 , G01R33/3614
摘要： A Class-E amplifier has bee adapted for use in the radio frequency section of a magnetic resonance imaging (MRI) system. A drive signal is produces by modulating the envelope of a radio frequency carrier signal and then applied to a switch in the Class-E amplifier. The switch is connected in series with a choke between a supply voltage terminal and circuit ground with an output node formed between the choke and the switch. The output node is coupled to circuit ground by a shunt capacitor. In a preferred embodiment, a pair of such amplifiers, that are Π radians out of phase, are connected to each rung of a transverse electromagnetic transmit array type radio frequency coil of the MRI system.
摘要翻译： E类放大器适用于磁共振成像（MRI）系统的射频部分。通过调制射频载波信号的包络产生驱动信号，然后将其应用于E类放大器中的开关。开关与电源电压端子和电路接地之间的扼流器串联连接，并在扼流圈和开关之间形成输出节点。输出节点通过并联电容耦合到电路接地。在优选实施例中，一对这样的放大器，即相位差的Pi弧度，连接到MRI系统的横向电磁发射阵列型射频线圈的每个梯级。

32. 发明授权

US07295879B2 Double helical antenna assembly for a wireless intravascular medical device 有权
标题翻译：用于无线血管内医疗设备的双螺旋天线组件
公开(公告)号：US07295879B2
公开(公告)日：2007-11-13
申请号：US11166889
申请日：2005-06-24
申请人： Stephen Denker , Cherik Bulkes , Arthur J. Beutler
发明人： Stephen Denker , Cherik Bulkes , Arthur J. Beutler
IPC分类号： A61N1/00
CPC分类号： A61N1/37229 , A61N1/375
摘要： A medical device, such as a cardiac pacing device for an animal, includes an intravascular antenna that has a first coil for engaging a wall of a first blood vessel to receive a radio frequency signal. The first coil includes a first winding wound helically in a rotational direction along a longitudinal axis from a first end of the coil to a second end. A second winding that is connected to the a first winding at the second end, is wound helically in the same rotational direction along the longitudinal axis from the second end to the first end. An electronic circuit is implanted in the animal and is connected to the antenna to receive an electrical signal therefrom.
摘要翻译：诸如用于动物的心脏起搏装置的医疗装置包括血管内天线，其具有用于接合第一血管的壁以接收射频信号的第一线圈。第一线圈包括沿着从线圈的第一端到第二端的纵向轴线的旋转方向螺旋形地缠绕的第一线圈。在第二端连接到第一绕组的第二绕组沿着从第二端到第一端的纵向轴线在相同的旋转方向上螺旋地卷绕。将电子电路注入动物，并连接到天线以从其接收电信号。

33. 发明申请

US20060066309A1 Thermal management system and method for MRI gradient coil 失效
标题翻译： MRI梯度线圈的热管理系统和方法
公开(公告)号：US20060066309A1
公开(公告)日：2006-03-30
申请号：US10955635
申请日：2004-09-30
申请人： Mehmet Arik , Bulent Aksel , William Gerstler , Cherik Bulkes , Douglas Kelley , Steven Brzozowski
发明人： Mehmet Arik , Bulent Aksel , William Gerstler , Cherik Bulkes , Douglas Kelley , Steven Brzozowski
IPC分类号： G01V3/00
CPC分类号： G01R33/3856
摘要： A thermal management system and method for cooling Magnetic Resonance Imaging gradient coils. The system includes least one first header tube positioned adjacent to said gradient coils and configured to transport a coolant fluid; at least one set of cooling tubes connected to said header tube at inlet ends and configured to transport said coolant fluid, wherein said cooling tubes are parallel to each other and at least one second header tube positioned adjacent to said gradient coils, connected to said at least one set of cooling tubes at outlet ends of said at least one set of cooling tubes and configured to transport said coolant fluid.
摘要翻译：一种用于冷却磁共振成像梯度线圈的热管理系统和方法。该系统包括邻近所述梯度线圈定位的至少一个第一集管，并且构造成输送冷却剂流体; 至少一组冷却管在入口端处连接到所述集管，并且构造成输送所述冷却剂流体，其中所述冷却管彼此平行并且与所述梯度线圈相邻定位的至少一个第二集管，在所述至少一组冷却管的出口端处的至少一组冷却管，并且构造成输送所述冷却剂流体。

34. 发明授权

US07826903B2 Radio frequency antenna for a wireless intravascular medical device 有权
标题翻译：射频天线用于无线血管内医疗设备
公开(公告)号：US07826903B2
公开(公告)日：2010-11-02
申请号：US11877921
申请日：2007-10-24
申请人： Stephen Denker , Cherik Bulkes , Arthur J. Beutler
发明人： Stephen Denker , Cherik Bulkes , Arthur J. Beutler
IPC分类号： A61N1/08
CPC分类号： A61N1/3787 , A61N1/37205 , A61N1/37229 , H01Q1/273 , H01Q1/40 , H01Q7/00
摘要： A radio frequency antenna is provided for use with a medical device for implantation into an animal. The antenna comprises a coil formed by a wire that includes a core formed of a shape-memory material with an electrically conductive first layer applied to an outer surface of the core. A second layer, of an electrically insulating and biologically compatible material, extends around the first layer. If necessary to reduce friction, a lubricant is placed between the first and second layers. If second layer is formed of a porous material or a non-biological compatible material, a biological compatible outer layer surrounds the second layer thereby providing a barrier that is impermeable to body fluids of the animal.
摘要翻译：提供射频天线用于与用于植入动物的医疗装置一起使用。该天线包括由导线形成的线圈，该线圈包括由形状记忆材料形成的芯体，其具有施加到芯体外表面的导电第一层。电绝缘和生物相容的材料的第二层围绕第一层延伸。如果需要减少摩擦，则在第一和第二层之间放置润滑剂。如果第二层由多孔材料或非生物相容的材料形成，则生物相容的外层围绕第二层，从而提供对动物体液不可透过的屏障。

35. 发明授权

US07382128B2 Magnetic resonance imaging system with a Class-E radio frequency amplifier 失效
标题翻译：具有E类射频放大器的磁共振成像系统
公开(公告)号：US07382128B2
公开(公告)日：2008-06-03
申请号：US11678226
申请日：2007-02-23
申请人： Cherik Bulkes , Stephen Denker , Arthur J. Beutler
发明人： Cherik Bulkes , Stephen Denker , Arthur J. Beutler
IPC分类号： G01V3/00
CPC分类号： G01R33/34076 , G01R33/34046 , G01R33/3453 , G01R33/3614
摘要： A Class-E amplifier has been adapted for use in the radio frequency section of a magnetic resonance imaging (MRI) system. A drive signal is produced by modulating the envelope of a radio frequency carrier signal and then is applied to a switch in the Class-E amplifier. The switch is connected in series with a choke between a supply voltage terminal and circuit ground with an output node formed between the choke and the switch. The output node is coupled to circuit ground by a shunt capacitor. In a preferred embodiment, a pair of such amplifiers, that are π radians out of phase, are connected to each rung of a transverse electromagnetic transmit array type radio frequency coil of the MRI system.
摘要翻译： E类放大器已经适用于磁共振成像（MRI）系统的射频部分。通过调制射频载波信号的包络产生驱动信号，然后将其应用于E类放大器中的开关。开关与电源电压端子和电路接地之间的扼流器串联连接，并在扼流圈和开关之间形成输出节点。输出节点通过并联电容耦合到电路接地。在优选实施例中，一对这样的放大器，即相位差的pi弧度，连接到MRI系统的横向电磁发射阵列型射频线圈的每个梯级。

36. 发明申请

US20070288076A1 BIOLOGICAL TISSUE STIMULATOR WITH FLEXIBLE ELECTRODE CARRIER 审中-公开
标题翻译：具有柔性电极载体的生物组织刺激物
公开(公告)号：US20070288076A1
公开(公告)日：2007-12-13
申请号：US11759476
申请日：2007-06-07
申请人： Cherik Bulkes , Stephen Denker
发明人： Cherik Bulkes , Stephen Denker
IPC分类号： A61N1/05
CPC分类号： A61N1/056 , A61N1/05 , A61N1/057 , A61N1/37211 , A61N1/3787
摘要： A biological tissue stimulating apparatus is provided that is adapted for intraluminal implantation is an animal. The apparatus includes a flexible electrode carrier on which a plurality of exposed electrodes formed on a flexible insulating layer wherein the electrodes are to contact the tissue being stimulated. A separate electrical conductor extends from each electrode to a control circuit. The control circuit programmably selects pairs of electrodes for transluminally stimulating the biological tissue. The flexible electrode carrier is adapted to be deployed in a lumen of an organ of the animal, for example a blood vessel, in a spirally coiled form that expands upon being properly located in the lumen to secure the flexible electrode carrier against on to the inner wall of the lumen.
摘要翻译：提供适于腔内植入的生物组织刺激装置是动物。该装置包括柔性电极载体，多个暴露电极形成在柔性绝缘层上，其中电极将被接触被刺激的组织。单独的电导体从每个电极延伸到控制电路。控制电路可编程地选择成对的电极来平滑地刺激生物组织。柔性电极载体适于部署在动物器官的内腔中，例如血管，螺旋卷曲形状，其在适当地位于内腔中时膨胀，以将柔性电极载体固定在内部管腔壁。

37. 发明申请

US20070210867A1 CLASS-E RADIO FREQUENCY POWER AMPLIFIER WITH FEEDBACK CONTROL 失效
标题翻译：具有反馈控制的等级无线电频率放大器
公开(公告)号：US20070210867A1
公开(公告)日：2007-09-13
申请号：US11678247
申请日：2007-02-23
申请人： Cherik Bulkes , Stephen Denker , Arthur J. Beutler
发明人： Cherik Bulkes , Stephen Denker , Arthur J. Beutler
IPC分类号： H03F3/217
CPC分类号： A61N1/3787 , H03F1/34 , H03F3/217 , H03F3/2176 , H03F2200/351
摘要： A Class-E power amplifier includes a choke and a switch connected in series between a source of a supply voltage and circuit ground and connected to an inductively coupled coil. An output node of the amplifier is formed between choke and the switch and connected to a transmitter antenna. A shunt capacitor couples the amplifier's output node to the circuit ground. A feedback signal, indicating an intensity if the signal at the amplifier output node is used to vary the input signal to the Class-E power amplifier and thereby control operation of the switch.
摘要翻译： E类功率放大器包括在电源电压和电路接地之间串联连接并连接到电感耦合线圈的扼流器和开关。放大器的输出节点形成在扼流圈和开关之间并连接到发射器天线。分流电容将放大器的输出节点耦合到电路地。反馈信号，如果放大器输出节点处的信号用于改变到E类功率放大器的输入信号，从而控制开关的操作，则表示强度。

38. 发明申请

US20070129773A1 Medical Device With Intra-Conductor Capacitive Energy Storage 审中-公开
标题翻译：具有导体电容式储能的医疗器械
公开(公告)号：US20070129773A1
公开(公告)日：2007-06-07
申请号：US11671503
申请日：2007-02-06
申请人： Cherik Bulkes
发明人： Cherik Bulkes
IPC分类号： A61N1/378
CPC分类号： A61N1/375 , A61N1/3787 , Y10S128/903
摘要： A medical device, such as for electrical stimulation, includes an electronic circuit that is implantable at a first location in an animal. The electronic circuit has an element for receiving a wireless signal and a power supply that converts electrical energy from that signal into a supply voltage for powering the medical device. An electrical lead, that extends from the electronic circuit through the animal, has a first conductor, a second conductor, and a plurality of capacitors connected between those conductors to store the supply voltage. An electrode is implanted in the animal and is connected to the electronic circuit by a third conductor. In one embodiment, the third conductor extends through the electrical lead electrically isolated from the capacitors, and in another embodiment, the third conductor is physically separate from the electrical lead.
摘要翻译：诸如用于电刺激的医疗装置包括可植入动物第一位置的电子电路。电子电路具有用于接收无线信号的元件和将该信号的电能转换成用于为医疗装置供电的电源电压的电源。从电子电路通过动物延伸的电引线具有连接在这些导体之间的第一导体，第二导体和多个电容器，以存储电源电压。电极被植入动物体内，并通过第三导线与电子电路连接。在一个实施例中，第三导体延伸穿过与电容器电隔离的电引线，并且在另一实施例中，第三导体与电引线物理分离。

39. 发明申请

US20070118187A1 ALERTING METHOD FOR A TRANSVASCULAR TISSUE STIMULATION SYSTEM 审中-公开
标题翻译：一种透析组织刺激系统的诊断方法
公开(公告)号：US20070118187A1
公开(公告)日：2007-05-24
申请号：US11556979
申请日：2006-11-06
申请人： Stephen Denker , Arthur Beutler , Cherik Bulkes
发明人： Stephen Denker , Arthur Beutler , Cherik Bulkes
IPC分类号： A61N1/00
CPC分类号： A61N1/05 , A61N1/362 , A61N1/37205 , A61N1/37252 , A61N1/37258 , A61N1/37282 , A61N1/3787
摘要： A system for stimulating tissue of the patient includes an implantable medical device and an external power source. The medical device receives and extracts electrical energy from a first wireless signal and has a detector circuit that senses a physiological characteristic of the patient. The sensing can occur simultaneously while electrical stimulation pulses are applied to the tissue. A feedback transmitter that sends information related to the physiological characteristic via a second wireless signal. The external power source transmits the first wireless signal and extracts the information from a second wireless signal. When the information indicates existence of a predefined condition, a communication module, that preferably includes a cellular telephone sends a message for reception by the remote monitor to alert medical personnel.
摘要翻译：用于刺激患者组织的系统包括可植入医疗装置和外部电源。医疗设备从第一无线信号接收并提取电能，并且具有检测患者的生理特征的检测器电路。当电刺激脉冲施加到组织时，感测可以同时发生。反馈发射机，通过第二无线信号发送与生理特征相关的信息。外部电源发送第一无线信号并从第二无线信号中提取信息。当信息表示存在预定条件时，优选地包括蜂窝电话的通信模块发送用于远程监视器接收的消息以警告医务人员。

40. 发明申请

US20070106357A1 Intravascular Electronics Carrier Electrode for a Transvascular Tissue Stimulation System 审中-公开
标题翻译：血管内电子载体电极用于血管内组织刺激系统
公开(公告)号：US20070106357A1
公开(公告)日：2007-05-10
申请号：US11553264
申请日：2006-10-26
申请人： Stephen Denker , Arthur Beutler , Cherik Bulkes
发明人： Stephen Denker , Arthur Beutler , Cherik Bulkes
IPC分类号： A61N1/00
CPC分类号： A61N1/372 , A61N1/362 , A61N1/37205 , A61N1/375
摘要： An intravascular mesh type electrode carrier eliminates material and mechanical transitions between an electrical lead and an electrode by interweaving the conductor of the lead into the carrier mesh. The mesh material of the electrode carrier can be electrically conductive so that the entire carrier functions as the electrode. Alternatively, the mesh material may either be non-conductive or have an outer non-conductive coating, in which cases only the exposed section of the first conductor acts as an electrode. With a non-conductive mesh material, a second electrode lead can be woven through the mesh of the electrode carrier to provide a second electrode.
摘要翻译：血管内网状电极载体通过将导体的导体交织到载体网中来消除电引线和电极之间的材料和机械转变。电极载体的网状材料可以是导电的，使得整个载体用作电极。或者，网状材料可以是不导电的或具有外部非导电涂层，在这种情况下，仅第一导体的暴露部分用作电极。利用非导电网状材料，可以通过电极载体的网格编织第二电极引线以提供第二电极。

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