-
公开(公告)号：US5957969A
公开(公告)日：1999-09-28
申请号：US898712
申请日：1997-07-22
Applicant: Glen Grant Warner , David Alan Grundy , R. Hardwin Mead
Inventor： Glen Grant Warner , David Alan Grundy , R. Hardwin Mead
CPC classification number: A61B18/1492 , A61B18/1206 , A61B18/18 , A61B18/1815 , A61B2017/00084 , A61B2018/00351 , A61B2018/00577 , A61B2018/00702 , A61B2018/00785 , A61B2018/00839 , A61B2018/00875 , A61B2018/1253 , A61B2018/126 , A61B2018/1495 , A61B2018/1846 , A61B2018/1861 , A61B2090/064
Abstract: A tunable microwave ablation catheter system is disclosed which matches the impedance of its power supply with the transmission line to minimize reflected power and optimize energy delivery to targeted tissues. The tuner itself may be located in the power supply, the transmission line or the antenna. Tuner mechanisms at these locations can change the antenna configuration, move material relative to the antenna or alter the waveguide. A controller monitors the catheter system operation. A method of medical treatment is disclosed where the impedances of the components of the systems are adjusted during use to compensate for impedance variations.
Abstract translation: 公开了可调谐微波消融导管系统，其将其电源的阻抗与传输线匹配，以最小化反射功率并优化到目标组织的能量传递。 调谐器本身可以位于电源，传输线或天线中。 这些位置的调谐器机构可以改变天线配置，相对于天线移动材料或改变波导。 控制器监控导管系统的运行。 公开了一种治疗方法，其中在使用期间调节系统部件的阻抗以补偿阻抗变化。
-
公开(公告)号：US5810803A
公开(公告)日：1998-09-22
申请号：US732045
申请日：1996-10-16
Applicant: Jon F. Moss , Peter Sturzu , Hiep P. H. Nguyen
Inventor： Jon F. Moss , Peter Sturzu , Hiep P. H. Nguyen
CPC classification number: A61B18/18 , A61B18/1492 , A61B18/1815 , A61N1/06 , A61B2018/00351 , A61B2018/00577 , A61B2018/00839 , A61B2018/1846 , A61B2018/1861
Abstract: An ablation catheter includes an elongated flexible tubular member adapted to be inserted into a vessel in the body of a patient. A transmission line is disposed within the tubular member and a transducer is coupled to the transmission line for generating an electric field sufficiently strong to cause tissue ablation. A shape memory wire is positioned at a distal portion of the catheter adjacent the transducer to facilitate straightening the catheter tip after use. In one preferred embodiment, the shape memory wire may a flat wire which is formed from copper beryllium, a steel alloy, or nickel titanium. In another embodiment, the transmission line of the catheter is a coaxial cable, and the transducer is a helical antenna coil that is adapted to radiate electromagnetic energy in the microwave frequency range. In yet another embodiment, the shape memory wire is positioned within the antenna coil. Methods for manufacturing and using such ablation catheters are also described.
Abstract translation: 消融导管包括适于插入患者体内的容器中的细长柔性管状构件。 传输线设置在管状构件内，并且换能器耦合到传输线，用于产生足够强的电场以引起组织消融。 形状记忆线定位在邻近换能器的导管的远端部分，以便于使用后矫正导管尖端。 在一个优选实施例中，形状记忆线可以是由铜铍，钢合金或镍钛形成的扁线。 在另一个实施例中，导管的传输线是同轴电缆，并且换能器是适于辐射微波频率范围内的电磁能的螺旋天线线圈。 在另一个实施例中，形状记忆线位于天线线圈内。 还描述了制造和使用这种消融导管的方法。
-
公开(公告)号：US5741249A
公开(公告)日：1998-04-21
申请号：US755998
申请日：1996-11-25
Applicant: Jon F. Moss , Peter Sturzu , Hiep P.H. Nguyen
Inventor： Jon F. Moss , Peter Sturzu , Hiep P.H. Nguyen
CPC classification number: A61B18/18 , A61B18/1492 , A61B18/1815 , A61N1/06 , A61B2018/00351 , A61B2018/00577 , A61B2018/00839 , A61B2018/1846 , A61B2018/1861
Abstract: An ablation catheter with an anchoring tip extension includes an elongated flexible tubular member adapted to be inserted into a vessel in the body of a patient. A transmission line is disposed within the tubular member, and a transducer is coupled to the transmission line for generating an electric field sufficiently strong to cause tissue ablation. An anchoring tip extension, which is located at the distal end of the catheter, lodges into the wall of a cardiac chamber and serves to anchor the catheter both during an ablation procedure and during the process of conforming the catheter to the wall. In one preferred embodiment, the catheter includes a shape memory wire. In another embodiment, the transmission line of the catheter is a co-axial cable, and the transducer is a helical antenna coil that is adapted to radiate electromagnetic energy in the microwave frequency range. Methods for manufacturing and using such ablation catheters are also described.
Abstract translation: 具有锚固末端延伸部的消融导管包括适于插入患者体内的容器中的细长柔性管状构件。 传输线设置在管状构件内，并且换能器耦合到传输线，用于产生足够强的电场以引起组织消融。 位于导管远端的锚定末端延伸部分嵌入心室的壁中，并用于在消融过程期间以及在使导管与壁相一致的过程中锚定导管。 在一个优选实施例中，导管包括形状记忆线。 在另一个实施例中，导管的传输线是同轴电缆，并且换能器是适于在微波频率范围内辐射电磁能的螺旋天线线圈。 还描述了制造和使用这种消融导管的方法。
-
公开(公告)号：US5370644A
公开(公告)日：1994-12-06
申请号：US93177
申请日：1993-07-16
Applicant: Edwin Langberg
Inventor： Edwin Langberg
IPC: A61B5/0402 , A61B18/08 , A61B18/12 , A61B18/14 , A61B18/18 , A61N1/06 , A61N1/40 , A61N5/00 , A61B5/04
CPC classification number: A61B18/1492 , A61B18/08 , A61B18/18 , A61B18/1815 , A61N1/06 , A61N1/40 , A61N1/403 , A61B18/1233 , A61B2018/00005 , A61B2018/00107 , A61B2018/00351 , A61B2018/00577 , A61B2018/00839 , A61B2018/1846 , A61M2230/04
Abstract: A cardiac ablation apparatus including a solenoidal antenna, monitoring electrodes, and a coupling network at a distal end of a catheter transmission line, and another coupling network at the proximal end of the catheter transmission line to connect the catheter to the source of radiofrequency (RF) power and to an intracardiac electrogram monitor. Solenoidal antenna design includes single and multiple windings with varying geometrical features. Plated plastic tri-axial design of a transmission line offers unitary fabrication. A catheter with variable impedance electrode and gap coatings has features useful for both ablation and for hyperthermia applications.
Abstract translation: 包括螺线管天线，监测电极和在导管传输线的远端处的耦合网络的心脏消融装置，以及在导管传输线的近端处的另一耦合网络，以将导管连接到射频源（RF ）功率和心内电描记图监视器。 电磁天线设计包括具有不同几何特征的单绕组和多绕组。 传输线的镀塑料三轴设计提供单一制造。 具有可变阻抗电极和间隙涂层的导管具有用于消融和热疗应用的特征。
-
85.发明授权Microwave ablation catheter system with impedance matching tuner and method 失效具有阻抗匹配调谐器和方法的微波消融导管系统
公开(公告)号：US5364392A
公开(公告)日：1994-11-15
申请号：US62637
申请日：1993-05-14
Applicant: Glen G. Warner , David A. Grundy
Inventor： Glen G. Warner , David A. Grundy
CPC classification number: A61B18/18 , A61B18/1206 , A61B18/1492 , A61B18/1815 , A61B2018/00351 , A61B2018/00577 , A61B2018/00702 , A61B2018/00785 , A61B2018/00839 , A61B2018/00875 , A61B2018/1253 , A61B2018/126 , A61B2018/1495 , A61B2018/1846 , A61B2018/1861 , A61B2090/064
Abstract: A tuner system for a microwave power supply used in an ablation catheter system is disclosed. The tuner system includes a tuner arranged to facilitate matching the impedance of a power generator side portion of the catheter system with the impedance of a catheter side portion of the catheter system. A reflected power monitor is also provided for monitoring the amount of power that is reflected from the catheter during use. In a preferred aspect of the invention, the tuner is used in a power supply that includes a microwave power source and is used in conjunction with a catheter having a coaxial transmission line and a helical antenna. In a method aspect of the invention, a method for medical treatment using a microwave ablation catheter system is disclosed.
Abstract translation: 公开了一种用于消融导管系统中的微波电源的调谐器系统。 调谐器系统包括调谐器，其被布置成便于使导管系统的发电机侧部分的阻抗与导管系统的导管侧部分的阻抗匹配。 还提供反射功率监视器，用于监视在使用期间从导管反射的功率的量。 在本发明的优选方面，调谐器用于包括微波功率源的电源中，并且与具有同轴传输线和螺旋天线的导管结合使用。 在本发明的方法方面，公开了一种使用微波消融导管系统的医疗处理方法。
-
Patent Agency Ranking
公开(公告)号：US5230349A
公开(公告)日：1993-07-27
申请号：US893896
申请日：1992-06-04
Applicant: Edwin Langberg
Inventor： Edwin Langberg
CPC classification number: A61N1/403 , A61B18/08 , A61B18/1492 , A61B18/18 , A61B18/1815 , A61N1/0565 , A61N1/06 , A61N1/28 , A61N1/40 , A61B18/1233 , A61B2018/00005 , A61B2018/00083 , A61B2018/00095 , A61B2018/00107 , A61B2018/00148 , A61B2018/00351 , A61B2018/00577 , A61B2018/00839 , A61B2018/1846 , A61M2230/04
Abstract: The invention provides a thermal design of a catheter where the active electrode is partially covered by a heat conducting and electrically insulating heat-sink layer for localizing and controlling an electrical heating of tissue and cooling of the active electrode by convective blood flow. The invention further comprises a current equalizing coating for gradual transition of electrical properties at a boundary of a metallic active electrode and an insulating catheter tube. The current equalizing coating controls current density and the distribution of tissue heating.
-
公开(公告)号：US12011220B2
公开(公告)日：2024-06-18
申请号：US17652718
申请日：2022-02-28
Applicant: MicroCube, LLC
Inventor： Clarence Emmons , Chun Yiu Chu , Amrish J. Walke , Dinesh I. Mody , Ketan Shroff
CPC classification number: A61B18/1815 , A61N7/022 , A61B2018/00005 , A61B2018/00023 , A61B2018/00029 , A61B2018/00184 , A61B2018/00351 , A61B2018/00404 , A61B2018/00422 , A61B2018/0044 , A61B2018/00452 , A61B2018/00488 , A61B2018/00494 , A61B2018/005 , A61B2018/00511 , A61B2018/00517 , A61B2018/00523 , A61B2018/00529 , A61B2018/00541 , A61B2018/00547 , A61B2018/00559 , A61B2018/00577 , A61B2018/00642 , A61B2018/00702 , A61B2018/00726 , A61B2018/00761 , A61B2018/00785 , A61B2018/00791 , A61B2018/00827 , A61B2018/00839 , A61B2018/00863 , A61B2018/00875 , A61B2018/00892 , A61B2018/00904 , A61B2018/00982 , A61B2018/00994 , A61B2018/0212 , A61B2018/1846 , A61B2018/1853 , A61B2018/1861 , A61B2018/1869 , A61B18/20
Abstract: The present invention discloses medical systems and methods adapted for the delivery of various medical components such as microwave antennas within or on a body for performing one or more medical procedures. Several embodiments herein disclose medical systems comprising a combination of one or more medical components and one or more elongate steerable or non-steerable arms that are adapted to mechanically manipulate the one or more medical components. Several embodiments of microwave antennas are disclosed that comprise an additional diagnostic or therapeutic modality located on or in the vicinity of the microwave antennas.
-
公开(公告)号：US11737823B2
公开(公告)日：2023-08-29
申请号：US16669057
申请日：2019-10-30
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Serena H. Wong
CPC classification number: A61B18/1815 , A61B34/20 , A61B34/35 , A61B2018/00023 , A61B2018/00029 , A61B2018/00035 , A61B2018/00351 , A61B2018/00446 , A61B2018/00494 , A61B2018/00511 , A61B2018/00523 , A61B2018/00529 , A61B2018/00541 , A61B2018/00559 , A61B2018/00577 , A61B2018/183 , A61B2018/1846 , A61B2018/1861
Abstract: An antenna system for tissue ablation includes an energy transmission member, a conductive hollow coil member, and a fluid cooling system. The energy transmission member has an inner conductor, an outer conductor, and a dielectric layer between the inner and outer conductors. A portion of the dielectric layer extends distally of a distal end of the outer conductor. The conductive hollow coil member includes a member lumen within a length of the conductive hollow coil member. The conductive hollow coil member is coiled around the portion of the dielectric layer and is separate from the inner conductor. The conductive hollow coil member extends along an entire length of the outer conductor of the energy transmission member. The fluid cooling system is coupled to the conductive hollow coil member for providing a flow of a cooling fluid through the member lumen for cooling the conductive hollow coil member.
-
公开(公告)号：US11717347B2
公开(公告)日：2023-08-08
申请号：US16713312
申请日：2019-12-13
Applicant: Covidien LP
Inventor： Roman Turovskiy , Ted Su , Mani Prakash , Steven Kim
CPC classification number: A61B18/1815 , A61B18/18 , H01Q9/22 , A61B2018/00011 , A61B2018/00577 , A61B2018/00589 , A61B2018/00642 , A61B2018/00702 , A61B2018/00791 , A61B2018/00797 , A61B2018/00821 , A61B2018/1838 , A61B2018/1846 , A61B2018/1853 , A61B2018/1892
Abstract: A microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. Proximal and distal radiating portions of the antenna assembly are separated by a junction member. A reinforcing member is disposed within the junction member to increase structural rigidity.
-
公开(公告)号：US11653975B2
公开(公告)日：2023-05-23
申请号：US17023665
申请日：2020-09-17
Applicant: Covidien LP
Inventor： Joseph D. Brannan
CPC classification number: A61B18/1815 , A61B34/20 , A61B2018/00023 , A61B2018/00541 , A61B2018/00577 , A61B2018/00666 , A61B2018/00744 , A61B2018/00785 , A61B2018/00797 , A61B2018/00821 , A61B2018/00904 , A61B2018/00982 , A61B2018/1838 , A61B2018/1846 , A61B2018/1853 , A61B2018/1861 , A61B2018/1892 , A61B2034/2051 , A61B2218/002 , A61B2218/007
Abstract: A system including a catheter navigable to a location within a patient, a lumen extending through the catheter and ending at the distal end in an orifice, a fluid controller in fluid communication with the lumen of the catheter and capable of supplying a fluid to or removing a fluid from an area proximate the desired location. The control of the fluid in the area proximate the desired location affecting a dielectric constant of the area proximate the desired location. The system includes a microwave energy source, and a microwave ablation probe connected to the microwave energy source, the microwave ablation probe being navigable to a desired location within the patient. Application of energy from the microwave energy source to the microwave ablation probe in an area proximate the desired location having the affected dielectric constant results in a substantially spherical tissue effect in the area proximate the desired location.
-
-
-
-
-
-
-
-
-
Search Results
153
records
(took 0.039 seconds)
