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公开(公告)号：US20170273740A1
公开(公告)日：2017-09-28
申请号：US15489608
申请日：2017-04-17
Inventor： Huisun Wang , Jeremy D. Dando , Hong Cao
IPC: A61B18/14
CPC classification number: A61B18/1492 , A61B2018/00011 , A61B2018/00029 , A61B2018/00577 , A61B2218/002
Abstract: The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on an electrode of a catheter, prevents the impedance rise of tissue in contact with the electrode, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The electrode includes passages positioned to allow saline flow out of an inner cavity of the electrode. This fluid flow is pulsatile to increase turbulence, reducing areas of stagnant flow, and produces a desired cooling effect.
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公开(公告)号：US09764115B2
公开(公告)日：2017-09-19
申请号：US14151240
申请日：2014-01-09
Inventor： Troy T. Tegg
CPC classification number: A61M25/0147 , A61B5/042 , A61B2017/00318 , A61B2017/00327 , A61M25/0136
Abstract: An apparatus for deflecting a distal portion of a catheter, a sheath, a medical device, or other flexible elongate member may generally include a handle portion, a pair of adjusting knobs, and deflection wires. The adjusting knobs may be rotatably coupled to the handle portion and operably coupled to the deflection wires. The deflection wires may be in further communication with the distal portion of the flexible elongate member. Rotation of the adjustment knobs may translate or otherwise displace particular deflection wires with respect to the rest of the flexible elongate member, thereby causing the distal portion of the flexible elongate member to deflect. Further, the deflection wires may be oriented such that the distal portion of the flexible elongate member may be deflected in a multitude of directions.
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公开(公告)号：US09724014B2
公开(公告)日：2017-08-08
申请号：US13797014
申请日：2013-03-12
Inventor： Anthony D. Hill , D. Curtis Deno , Ram Balachandran , Braden Eliason
CPC classification number: A61B5/065 , A61B5/062 , A61B5/063 , A61B5/066 , A61B18/1492 , A61B34/20 , A61B2034/2053 , A61B2090/0811 , A61M25/0097 , A61M25/0662 , A61M2025/0166 , A61M2025/0675
Abstract: An introducer may comprise a shaft and a proximal electrode. The shaft may have a proximal end portion and an interior lumen, the interior lumen configured to receive a catheter therethrough. The proximal electrode may be coupled with the proximal end portion and may be configured to act as an electrical source or sink so as to create an electrical field within the interior lumen. A position of an electrode coupled with the catheter may be determined according to the electrical field.
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公开(公告)号：US09694159B2
公开(公告)日：2017-07-04
申请号：US14311525
申请日：2014-06-23
Inventor： Clint Schneider , Joshua L. Dudney , Richard E. Stehr , Troy T. Tegg , Michael C. Bednarek , Guy P. Vanney , James A. Jensen , Michael W. Stine
CPC classification number: A61M25/0136 , A61M25/0147 , A61M2025/0186
Abstract: The present invention is a catheter actuation handle for deflecting a distal end of a tubular catheter body, the handle including an auto-locking mechanism. The handle comprises upper and lower grip portions, an actuator, and an auto-locking mechanism. The auto-locking mechanism is adapted to hold a deflected distal end of the catheter in place without input from the operator. When the distal end of the catheter is deflected from its zero position, it typically will seek a return to its zero position, and as a result exerts a force on the actuator. The auto-locking mechanism acts by providing a second force that resists this force from the distal end and holds the distal end in place. As a result, the operator does not need to maintain contact with the buttons to maintain the distal end 18 in a set position once placed there by actuating the actuator.
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公开(公告)号：US20170172454A1
公开(公告)日：2017-06-22
申请号：US15412100
申请日：2017-01-23
Inventor： Luke Y. Chen , Eric S. Olson
CPC classification number: A61B5/062 , A61B5/0422 , A61B5/06 , A61B6/503 , A61B34/10 , A61B34/20 , A61B90/36 , A61B90/90 , A61B2017/00053 , A61B2017/00243 , A61B2017/00482 , A61B2017/00703 , A61B2017/00725 , A61B2034/105 , A61B2034/2051 , A61B2034/2053 , A61B2090/364
Abstract: A method for providing a localization system with detailed information regarding a catheter's construction, while at the same time preventing operator input errors, for use in a three-dimensional localization field, including providing a catheter having at least one feature, providing a catheter catalog for use by the localization system, wherein the catheter catalog comprises reference data relating to features of the catheter, placing the catheter into the localization field, creating a map with the localization field, locating the catheter on the map, and correlating features of the catheter within the localization field with measurements made by the localization system when the feature is at various locations.
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Patent Agency Ranking
56.发明申请公开(公告)号：US20170143417A1
公开(公告)日：2017-05-25
申请号：US15413024
申请日：2017-01-23
Inventor： Huisun Wang , Jeremy D. Dando , Dale Just , Allen P. Moore
IPC: A61B18/14
CPC classification number: A61B18/1492 , A61B2018/00577 , A61B2018/00791 , A61B2034/2051 , A61B2218/002
Abstract: The present invention pertains to multiple piece irrigated ablation electrode assemblies wherein the irrigation channels are insulated or separated from at least one temperature sensing mechanism within the distal portion of the electrode assembly. The present invention further pertains to methods for improved assembly and accurate measurement and control of the electrode temperatures while effectively irrigating the device and target areas.
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57.发明申请公开(公告)号：US20170119453A1
公开(公告)日：2017-05-04
申请号：US15371268
申请日：2016-12-07
Inventor： Kyungmoo Ryu , Thao T. Ngo , Euljoon Park , Stuart Rosenberg , Allen Keel , Wenbo Hou , Steve Koh , Kjell Noren , Michael Yang
CPC classification number: A61B18/1206 , A61B5/1107 , A61B8/488 , A61B18/082 , A61B18/1492 , A61B18/20 , A61B34/20 , A61B2018/00351 , A61B2018/00375 , A61B2018/00577 , A61B2018/00642 , A61B2018/00666 , A61B2018/00702 , A61B2018/00726 , A61B2018/00744 , A61B2018/00863 , A61B2018/0088 , A61B2018/00892 , A61B2018/0212 , A61B2034/2051 , A61B2034/2059 , A61B2218/002 , A61N7/022
Abstract: A system and method for treating an arrhythmia in a heart are provided. The system includes an electronic control unit configured to monitor movement of one or more position sensor over a period of time. The position sensors may, for example, comprise electrodes or coils configured to generate induced voltages and currents in the presence of electromagnetic fields, The positions sensors are in contact with portions of heart tissue and changes in position are representative of motion of that tissue. The electronic control unit is further configured to generate an indicator, responsive to the movements of the sensors over the period of time, of a characteristic of the heart affected by delivery of ablation energy to heart tissue. In this manner, the effectiveness and safety of cardiac tissue ablation for treatment of the arrhythmia can be assessed and a post-ablation therapy regimen determined.
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公开(公告)号：US20170079541A1
公开(公告)日：2017-03-23
申请号：US15359920
申请日：2016-11-23
Inventor： Subramaniam C. Krishnan
CPC classification number: A61B5/0422 , A61B5/042 , A61B5/0432 , A61B5/05 , A61B5/068 , A61B5/1076 , A61B5/4836 , A61B17/3478 , A61B2017/00044 , A61B2017/00243 , A61B2017/00247 , A61M25/0662 , A61M2025/0166
Abstract: The instant disclosure relates to a family of devices and methods for both measuring electrophysiological signals and delivering elongate medical devices. In an embodiment, a kit is described that includes a hollow catheter adapted to navigate a patient's vasculature having a hollow lumen terminating at a distal end, structure configured for sensing cardiac electrical activity adjacent the distal end of the hollow catheter and for acquiring electrograms. The fossa ovalis of a subject can be located therefrom and a second medical device can be advanced into and through the hollow lumen to such an extent that a distal tip of the second medical device protrudes beyond a proximal end and the distal end of the hollow catheter at the same time.
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公开(公告)号：US09597148B2
公开(公告)日：2017-03-21
申请号：US14922986
申请日：2015-10-26
Inventor： Eric Steven Olson
CPC classification number: A61B18/1492 , A61B2018/00577 , A61B2018/00666 , A61B2018/00702 , A61B2018/00791 , A61B2018/00839 , A61B2018/00875 , A61B2090/065
Abstract: A system for controlling delivery of ablation energy by an ablation catheter to tissue in a body is provided. The system includes an electronic control unit configured to determine, responsive to a measurement signal from the ablation catheter, a value for a characteristic associated with the delivery of ablation energy to the tissue. In one embodiment, the characteristic is the degree of contact between the ablation catheter and the tissue. The unit is further configured to generate a control signal, responsive to the determined value of the characteristic, to control an amount of energy delivered from an ablation delivery element on the ablation catheter to the tissue. The amount of energy varies in response to the determined value of the characteristic when the determined value of the characteristic meets a predetermined condition relative to a threshold value for the characteristic.
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公开(公告)号：US20170065341A1
公开(公告)日：2017-03-09
申请号：US15348823
申请日：2016-11-10
Inventor： Carlo Pappone , Alan de la Rama , Peter C. Chen , Cary Hata , Jared A. Shimizu
CPC classification number: A61B18/1492 , A61B90/06 , A61B2017/00867 , A61B2018/00023 , A61B2018/00029 , A61B2018/00148 , A61B2018/00154 , A61B2018/00351 , A61B2018/00357 , A61B2018/00839 , A61B2018/1465 , A61B2018/1475 , A61B2090/064 , A61B2090/065 , A61B2218/002 , C08L2201/12
Abstract: A flexible tip electrode for an ablation catheter is disclosed. The catheter includes a catheter body and a hollow elongate tip electrode disposed at a distal end of the catheter body. The electrode includes a sidewall provided with one or more elongate gaps extending therethrough. The one or more elongate gaps providing flexibility in the sidewall for bending movement of the tip electrode relative to a longitudinal axis of the catheter body.
Abstract translation: 公开了一种用于消融导管的柔性尖端电极。 导管包括导管主体和设置在导管主体的远端处的中空细长末端电极。 电极包括设置有延伸穿过其中的一个或多个细长间隙的侧壁。 所述一个或多个细长间隙在侧壁中提供柔性，用于弯曲尖端电极相对于导管主体的纵向轴线的运动。
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