专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2480905A1 MRI SYSTEM WITH CARDIAC COIL HAVING OPENING FOR DEFIBRILLATOR ELECTRODES OR CONNECTOR FOR DEFIBRILLATOR CABLE 审中-公开
标题翻译：心线圈开口FOR DEFILBRILLATORELEKTRODEN或连接FOR转变除颤引线MRI系统
公开(公告)号：EP2480905A1
公开(公告)日：2012-08-01
申请号：EP10760086.8
申请日：2010-09-15
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： WEISS, Steffen , DAVID, Bernd , LIPS, Oliver , KRUEGER, Sascha
IPC分类号： G01R33/28 , G01R33/3415
CPC分类号： G01R33/3415 , A61B5/0044 , G01R33/28
摘要： The invention relates to a magnetic resonance imaging system comprising a main magnet coil (2) for generating a uniform, steady magnetic field within an examination volume, a number of gradient coils (4, 5, 6) for generating switched magnetic field gradients in different spatial directions within the examination volume, at least one cardiac RF coil (11) for transmitting RF pulses to and/or receiving MR signals from the chest region of a body (10) of a patient positioned in the examination volume, a control unit (13) for controlling the temporal succession of RF pulses and switched magnetic field gradients, and a reconstruction unit (15) for reconstructing a MR image from the MR signals. In order to enable quick and safe defibrillation at any time during a MR imaging procedure, the invention proposes that at least one opening (19, 22) is provided in the cardiac RF coil (11), through which opening (19, 22) a portion of the skin surface in the chest region of the body (10) is accessible, wherein the magnetic resonance imaging system further comprises a defibrillator unit (17) connected to at least one defibrillator electrode (23) fitting through the at least one opening (19, 22) provided in the cardiac RF coil (11). Alternatively, the invention proposes that at least one defibrillator cable (30) is affixed to the cardiac RF coil (11), wherein the defibrillator unit (17) is connectable to at least one defibrillator electrode pad (26) via the at least one defibrillator cable (30).

2. 发明公开

EP2260318A1 DETERMINATION OF LOCAL SAR IN VIVO AND ELECTRICAL CONDUCTIVITY MAPPING 审中-公开
标题翻译：体内确定局部特定吸收率和录制电导率
公开(公告)号：EP2260318A1
公开(公告)日：2010-12-15
申请号：EP09724108.7
申请日：2009-03-25
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： WEISS, Steffen , KATSCHER, Ulrich , VERNICKEL, Peter , VOIGT, Tobias Ratko , FINDEKLEE, Christian
IPC分类号： G01R33/58 , A61B5/053
CPC分类号： G01R33/583 , A61B5/055 , G01R33/288
摘要： A magnetic resonance imaging apparatus produces calculations of local specific energy absorption rates (SAR) by calculating an electrical permittivity map of a subject. The electric permittivity is calculated by measuring the components of the B
1 field induced by a radio frequency (RF) coil (16). The H
x and Hy components of the B
1 field can be directly measured. The H
z component is measured by encoding it into the phase of the resonance signals. Alternately, H
z can be calculated by solving Gauss's law for magnetism. H
z can also be estimated by finding the z component of the electric field. In the specific case of a birdcage RF coil, H
z can be estimated by using a model of the RF coil and a subject, a model of the RF coil alone, or setting H
z to a constant.

3. 发明公开

EP2121121A1 APPARATUS AND METHOD FOR APPLYING ENERGY WITHIN AN OBJECT 有权
标题翻译：设备供能在一个对象使用
公开(公告)号：EP2121121A1
公开(公告)日：2009-11-25
申请号：EP08719543.4
申请日：2008-03-03
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： DAVID, Bernd , WIRTZ, Daniel , LIPS, Oliver , WEISS, Steffen , KRUEGER, Sascha
IPC分类号： A61N1/08 , A61N1/16 , A61N1/37 , A61B5/055
CPC分类号： A61N1/08 , A61B5/055 , A61B2562/222 , A61N1/086 , A61N1/3718
摘要： The invention relates to an apparatus for applying energy within an object. The apparatus comprises an energy applying unit (8, 9), which includes an energy emitting element (9) for outputting energy within the object and an energy storage unit (8) locatable within the object and coupled to the energy emitting element. The apparatus comprises further an electrical control line (12) coupled to the energy applying unit for controlling the application of energy within the object by controlling a transmission of energy from the energy storage unit to the energy emitting element. The invention relates further to a corresponding method and a corresponding computer program.

4. 发明公开

EP2066234A2 CATHETER AND MEDICAL ASSEMBLY 有权转让
标题翻译：导管和医疗集团
公开(公告)号：EP2066234A2
公开(公告)日：2009-06-10
申请号：EP07826301.9
申请日：2007-09-07
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： LIPS, Oliver , DAVID, Bernd , GLEICH, Bernhard , KRUEGER, Sascha , WEISS, Steffen , WIRTZ, Daniel
IPC分类号： A61B5/055 , A61B5/042 , A61B5/0428
CPC分类号： A61B5/042 , A61B5/0428 , A61B5/055 , A61B2562/222 , A61N1/056 , A61N1/086 , A61N1/3625 , A61N1/3718 , G01R33/287
摘要： The present invention relates to a catheter (6) comprising: a connector (65, 66) at a proximal side of the catheter for connecting the catheter to an external signal transmission/receiving unit (10) for transmitting and/or receiving signals, an electrode (63, 64) at a distal side of the catheter, and an electrical connection including an electrical wire (61, 62) for electrically connecting the electrode and the connector for the transmission of signals between the electrode and the connector, wherein the electrical connection has a high electrical resistance of at least 1 kΩ, in particular of at least 5 kΩ. Thus, the present invention provides a solution to prevent excessive heating during EP interventions under MR guidance by using by using highly resistive wires and or lumped resistors as connections within catheters.

5. 发明公开

EP1831711A2 TRANSMISSION PATH FOR USE IN RF FIELDS 有权
标题翻译：传输路径FOR USE IN高频场
公开(公告)号：EP1831711A2
公开(公告)日：2007-09-12
申请号：EP05850880.5
申请日：2005-12-15
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： GLEICH, Bernhard , VERNICKEL, Peter , WEISS, Steffen , LUEDEKE, Kai-Michael
IPC分类号： G01R33/36
CPC分类号： G01R33/287 , G01R33/3642 , G01R33/3685
摘要： A transmission path (13) for transmitting high frequency (RF) signals is disclosed, which comprises a plurality of lead segments (20, 21, 22) which are coupled to one another on one end by a capacitive coupling element (30) and on the other end by an inductive coupling element (31) and which each have an effective length of approximately λi/4, wherein λi is the wavelength of a differential mode signal to be transmitted over the path (13). By providing these element (30, 31) in the form of distributed elements which electrically extend over at least a part of adjacent lead segments (20, 21; 21, 22) a very thin transmission path (13) can be realized, which is especially suitable for use with invasive catheters. Furthermore, this path (13) can be guided through RF fields of a magnetic resonance (MR) imaging system because common mode resonances are effectively suppressed.

6. 发明公开

EP1743186A1 MAGNETIC RESONANCE IMAGING SYSTEM PROVIDED WITH AN ELECTRICAL ACCESSORY DEVICE 有权转让
标题翻译：麻药Z Z Z UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG
公开(公告)号：EP1743186A1
公开(公告)日：2007-01-17
申请号：EP05733769.3
申请日：2005-04-21
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： VERNICKEL, Peter , WEISS, Steffen , GLEICH, Bernhard
IPC分类号： G01R33/36
CPC分类号： G01R33/3685 , G01R33/285 , G01R33/288 , G01R33/34084
摘要： A magnetic resonance imaging system is provided with one or more electrical accessory devices, for example, catheters (10) or RF surface coils (6), which are intended for use during the examination of an object, as well as with a connection lead (13) which is arranged so as to extend through an examination zone (1) of the magnetic resonance imaging apparatus, which zone can be exposed to an RF field, and to connect the accessory device to a connection unit (12). In order to avoid heating of the connection lead (13) due to common mode currents induced in the connection lead by the RF field, which currents could lead to injury of a patient or damage of the accessory device or the connection unit (12), the connection lead (13) comprises at least two lead segment (131, 132,…) which are coupled to one another via a transformer (141) and at least one matching network (151, 152) comprising at least one T-, L- and/or π-quadrupole, which each comprise at least two impedance elements in the form of a capacitor and/or an inductivity, between a lead segment (131; 132) and the inductive coupling element (141) for matching the impedances of both.
摘要翻译：磁共振成像系统设置有一个或多个电子附件装置，例如导管（10）或RF表面线圈（6），其用于在检查物体期间使用，以及连接引线（ 13），其布置成延伸穿过磁共振成像设备的检查区域（1），该区域可以暴露于RF场，并将附件设备连接到连接单元（12）。为了避免由连接引线在RF场引起的共模电流引起的连接引线（13）的加热，哪些电流可能导致患者的伤害或附件装置或连接单元（12）的损坏，所述连接引线（13）包括经由变压器（141）和至少一个匹配网络（151,152）彼此耦合的至少两个引线段（131,132 ...），所述至少一个匹配网络（151,152）包括至少一个T- ，每个包括电容器形式的至少两个阻抗元件和/或电感，位于引线段（131; 132）和电感耦合元件（141）之间，用于匹配两者的阻力。

7. 发明授权

EP2424430B1 INTERVENTIONAL MR IMAGING WITH MOTION COMPENSATION 有权
标题翻译：具有运动补偿的介入磁共振成像
公开(公告)号：EP2424430B1
公开(公告)日：2013-01-30
申请号：EP10717268.6
申请日：2010-04-14
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： KRUEGER, Sascha, S , WEISS, Steffen , DAVID, Bernd , LIPS, Oliver , MANZKE, Robert
IPC分类号： A61B5/06 , A61B5/055 , G01R33/28 , G01R33/567 , G01R33/565
CPC分类号： G01R33/5673 , A61B5/055 , A61B5/064 , A61B5/7207 , A61B2034/2051 , G01R33/287 , G01R33/4824 , G01R33/56509

8. 发明公开

EP2496164A2 RADIO FREQUENCY ABLATION CATHETER AND MAGNETIC RESONANCE IMAGING SYSTEM 有权转让
标题翻译： RF消融导管和MRI系统具有这样的消融导管
公开(公告)号：EP2496164A2
公开(公告)日：2012-09-12
申请号：EP10782030.0
申请日：2010-10-25
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： WEISS, Steffen , KRUEGER, Sascha
IPC分类号： A61B18/14 , A61N1/06 , G01R33/28 , A61B5/042 , A61B18/00 , A61N1/08
CPC分类号： A61N1/06 , A61B5/0422 , A61B18/1492 , A61B2017/00084 , A61B2018/00023 , A61B2018/00029 , A61B2018/00791 , A61B2090/374 , A61N1/086 , G01R33/285 , G01R33/288
摘要： A catheter comprising: -a transmission line (104, 106, 924, 1202, 1302, 1902,), wherein the transmission line comprises a plurality of radio frequency traps (118, 318, 418, 518, 618, 718, 818, 918, 1018, 1202, 1404,); and -a cooling line (104, 304, 1200, 1900) for cooling the plurality of radio frequency traps with a fluid.

9. 发明公开

EP2384141A1 SYSTEM, METHOD AND APPARATUS FOR CARDIAC INTERVENTION WITH MR STROKE DETECTION AND TREATMENT 审中-公开
标题翻译：系统，方法和设备与MR量检测和治疗心脏介入
公开(公告)号：EP2384141A1
公开(公告)日：2011-11-09
申请号：EP09796083.5
申请日：2009-12-11
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： WEISS, Steffen
IPC分类号： A61B5/055 , G01R33/28 , G01R33/563
CPC分类号： G01R33/56341 , A61B5/02007 , A61B5/055 , A61B5/4076 , A61B6/501 , G01R33/287 , G01R33/56366
摘要： A system for the early detection and treatment of catheter-induced ischemic strokes includes a magnetic resonance system (20) and a processor (36). The magnetic resonance system includes a sequence controller for performing each of a plurality of imaging sequences and a sequence memory (32) which stores at least a magnetic resonance angiography (MRA) sequence, a diffusion-weighted imaging (DWI) sequence, and a perfusion-weighted imaging (PWI) sequence. The processor is programmed to control the magnetic resonance system to perform the steps of: performing the MRA sequence to generate a baseline MRA image; performing a catheter-tracking procedure to track a catheter; performing the DWI sequence after the catheter procedure to generate a diffusion-weighted image; performing the PWI sequence to generate a perfusion-weighted image; and combining the diffusion-weighted image and the perfusion-weighted image to generate a combined image for evaluating the ischemic stroke.

10. 发明公开

EP2162755A2 TRANSMISSION CABLE FOR USE IN RADIO-FREQUENCY MAGNETIC OR ELECTRICAL FIELDS 有权
标题翻译：传输电缆FOR USE高频磁场或电场
公开(公告)号：EP2162755A2
公开(公告)日：2010-03-17
申请号：EP08776543.4
申请日：2008-06-27
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： KRUEGER, Sascha , DAVID, Bernd , LIPS, Oliver , WEISS, Steffen , WIRTZ, Daniel
IPC分类号： G01R33/28
CPC分类号： G01R33/36 , A61B18/14 , A61B2018/00178 , A61B2090/374 , A61N1/086 , G01R33/287 , G01R33/288 , G01R33/3664
摘要： A transmission cable for use in an elongate medical device (420) such as a catheter, guide wire, etc., wherein the transmission cable is capable of being switched to an MR-safe mode only when necessary, while retaining its optimal electrical transmission properties otherwise, is disclosed herein. The transmission cable comprises a transmission line including at least two electrically conductive line segments (104a, 104b) separated by a non-conductive gap (106a), a bridging unit comprising at least one electrically conductive bridge segment (108a) capable of bridging the non-conductive gap, and a switching unit (112) arranged to move the bridging unit and/or the transmission line to electrically connect the two line segments by closing the non-conductive gap using the bridge segment or to electrically disconnect the two line segments by opening the non-conductive gap.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式