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公开(公告)号：US10096105B2
公开(公告)日：2018-10-09
申请号：US15259744
申请日：2016-09-08
申请人： Medtronic, Inc.
发明人： Scott A. Hareland
摘要： A method and system for automatic location of a target treatment structure, such as a pulmonary vein ostium, from an anatomical image. The method includes calculating a most likely path of blood flow through a pulmonary vein based on a cross-sectional area minimization technique and calculating pulmonary vein geometry as a function of length. For example, a pulmonary vein ostium may be located by analyzing a change in pulmonary vein dimensional size or other anatomical factors, such as absolute size. The method may also include determining tissue thickness at the pulmonary vein ostium or other treatment size for treatment dose optimization. The method may be an algorithm performed by a processing unit of a navigation system or other component of a medical system.
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公开(公告)号：US10064564B2
公开(公告)日：2018-09-04
申请号：US13974639
申请日：2013-08-23
摘要： A method and system for monitoring phrenic nerve function and preventing phrenic nerve injury during cardiac ablation. The system includes a pacing device operable to transmit stimulation energy to the phrenic nerve through target tissue proximate the phrenic nerve, a plurality of assessment electrodes operable to make comparisons between baseline, real-time, and predetermined threshold values for CMAP signal amplitude and amplitude over time. The processing device may be connected to an ablation console, and the processing device may interrupt or adjust an ablation procedure controlled by the ablation console and/or generate a system alert in response to one of these comparisons, if the comparison indicates phrenic nerve injury. The method includes applying stimulation energy to the phrenic nerve, recording diaphragmatic CMAP signals in response to the stimulation energy, and adjusting an ablation procedure and/or automatically generating a system alert in response to comparisons performed by the processing device.
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公开(公告)号：US10058371B2
公开(公告)日：2018-08-28
申请号：US14944870
申请日：2015-11-18
发明人： Rahmani Sara , Lies Safar Remali
CPC分类号： A61B18/02 , A61B2017/00561 , A61B2017/00955 , A61B2018/0022 , A61B2018/0025 , A61B2018/00351 , A61B2018/00375 , A61B2018/00577 , A61B2018/00714 , A61B2018/00797 , A61B2018/00863 , A61B2018/00875 , A61B2018/0212 , A61B2018/0262 , A61B2018/0268
摘要： A cryotreatment catheter for treating tissue. The catheter may include an outer elongate body, a balloon treatment element coupled to the distal portion of the elongate body with a plurality of balloon lobes radially arranged around the outer elongate body, an inner elongate body rotatably movable within the lumen of the outer elongate body, and a fluid delivery lumen located within the lumen of the outer elongate body and at least partially within the lumen of the inner elongate body. The fluid delivery lumen may be branched at a distal portion into a plurality of linear segments, each linear segment being in fluid communication with one of the plurality of balloon lobes. Each of the balloon lobes may be inflated independently of each other by the linear segments of the fluid delivery lumen.
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公开(公告)号：US10058312B2
公开(公告)日：2018-08-28
申请号：US13281927
申请日：2011-10-26
申请人： Jean-Pierre Lalonde
发明人： Jean-Pierre Lalonde
CPC分类号： A61B17/00234 , A61B18/02 , A61B2017/00084 , A61B2017/00247 , A61B2018/00357 , A61B2018/00601 , A61B2018/0066 , A61B2018/00714 , A61B2018/00744 , A61B2018/00791 , A61B2018/00863 , A61B2018/00875 , A61B2090/065
摘要： A cryogenic medical system and method of use thereof for transseptal puncturing is disclosed, including a medical device having an elongate body with a fluid flow path therein, a thermally-transmissive region coupled to the elongate body in thermal communication with the fluid flow path, and a puncturing element movably coupled to the elongate body; and a cryogenic coolant source in fluid communication with the fluid flow path. The medical device may alternatively include an elongate body, a thermally-transmissive region coupled to the elongate body, a thermo-electric cooler in thermal communication with the thermally-transmissive region, and a puncturing element movably coupled to the elongate body.
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公开(公告)号：US09943352B2
公开(公告)日：2018-04-17
申请号：US15267638
申请日：2016-09-16
发明人： Teresa Mihalik
CPC分类号： A61B18/02 , A61B5/01 , A61B5/042 , A61B5/4848 , A61B5/6853 , A61B5/6859 , A61B18/1492 , A61B2018/0022 , A61B2018/00244 , A61B2018/00273 , A61B2018/00351 , A61B2018/00357 , A61B2018/00375 , A61B2018/00577 , A61B2018/00648 , A61B2018/00797 , A61B2018/00821 , A61B2018/00839 , A61B2018/0212 , A61B2018/0262
摘要： A device, system and method for temperature-based lesion formation assessment and mapping functionality using an accessory usable with an over-the-wire balloon catheter. The device may include a first annular element, a plurality of wires coupled to the first annular element, and a second annular element, the plurality of wires passing from the first annular element through the second annular element and into an elongate wire conduit coupled to the second annular element. At least one of the plurality of wires may include at least one temperature sensor and/or at least one mapping electrode. The first annular element coupled to an outer surface of a sheath. As a balloon catheter is advanced out of the sheath lumen, the distal tip of the catheter engages the second annular element and pushes the wires out of the sheath lumen, everting them over the balloon of the catheter.
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公开(公告)号：US09936999B2
公开(公告)日：2018-04-10
申请号：US15240589
申请日：2016-08-18
发明人： Jean-Pierre Lalonde
CPC分类号： A61B18/02 , A61B2018/0022 , A61B2018/00255 , A61B2018/00351 , A61B2018/00577 , A61B2018/0212 , A61B2018/0262
摘要： A catheter-based medical device including controlled refrigerant dispersion is disclosed. The device includes a fluid injection tube that carries refrigerant from a coolant supply to the distal portion of the device. A fluid dispersion unit is disposed on the distal end of the fluid tube to control the angle of distribution for refrigerant that is expelled from the fluid injection tube. Controlling the angle of distribution for the refrigerant facilitates dispersion of the fluid in a predetermined spray pattern. The disclosure further relates to cryoablation treatment systems incorporating such a catheter, and to cryoablation treatment methods for tissue treatment to address various conditions suitably treatable with cryoablation.
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公开(公告)号：US09889274B2
公开(公告)日：2018-02-13
申请号：US14743317
申请日：2015-06-18
发明人： George D. Mallin
CPC分类号： A61M25/0147 , A61M39/06 , A61M2039/062
摘要： An introducer sheath that is coupled to or integrated with a secondary device insertion hub, such as a hemostasis valve hub, wherein the secondary device insertion hub is received within a proximal portion of the introducer sheath. The introducer sheath may include one or more pull wire lumens, and the secondary device insertion hub does not cover or obstruct the proximal opening of each of the one or more pull wire lumens when coupled to or integrated with the introducer sheath. In this configuration one or more pull wires are free to exit the one or more pull wire lumens through a proximal face of the introducer sheath instead of a skive in a wall of the elongate body.
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公开(公告)号：US09855089B2
公开(公告)日：2018-01-02
申请号：US14255625
申请日：2014-04-17
CPC分类号： A61B18/02 , A61B2018/0022 , A61B2018/00255 , A61B2018/00375 , A61B2018/00577 , A61B2018/0212 , A61B2018/0262
摘要： A device, method, and system for thermally affecting tissue. The device may generally include an elongate body, an actuation element slidably disposed within the elongate body, a balloon defining an interior chamber, a proximal neck, and a distal neck, the first neck being coupled to the distal portion of the elongate body and the second neck being coupled to the distal portion of the actuation element, retraction of the actuation element within the elongate body causing the treatment element to transition from a first configuration to a second configuration. The distal neck may be located external to the interior chamber in the first configuration and within the interior chamber in the second configuration. The device may also include a fluid injection element that is transitionable to an expanded configuration when the balloon is inflated, thereby enhancing the cooling capacity of the balloon.
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公开(公告)号：US09743972B2
公开(公告)日：2017-08-29
申请号：US14334874
申请日：2014-07-18
发明人： Dan Wittenberger
CPC分类号： A61B18/02 , A61B2018/00023 , A61B2018/0025 , A61B2018/00351 , A61B2018/00375 , A61B2018/00577 , A61B2018/0212 , A61B2018/0262
摘要： A system, device, and method for the treatment of cardiac arrhythmia by, specifically, cryolipolysis of non-myocardial tissue and cryoablation of myocardial tissue. A system for treating cardiac arrhythmia may include a first thermal treatment device configured for placement within a heart in contact with myocardial tissue, a second thermal treatment device configured for placement in contact with pericardial tissue, an ablation energy source in communication with the first thermal treatment device, and a cooling energy source in communication with the second thermal treatment device, the cooling energy source causing the second thermal treatment device to reach a temperature insufficient for myocardial ablation when the second thermal treatment device is activated. A method of treating cardiac arrhythmia may include introducing a cooling element into a pericardial space proximate pericardial adipose tissue, and activating the cooling element to reduce the temperature of adjacent pericardial adipose tissue to approximately 0° C.
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公开(公告)号：US09724018B2
公开(公告)日：2017-08-08
申请号：US13282713
申请日：2011-10-27
申请人： Yong K. Cho , Scott A. Ransom , Xusheng Zhang
发明人： Yong K. Cho , Scott A. Ransom , Xusheng Zhang
CPC分类号： A61B5/1104 , A61B5/7217 , A61N1/08
摘要： Systems and methods for monitoring phrenic nerve function of a patient are disclosed, including, including establishing a diaphragmatic movement value threshold; positioning a diaphragmatic movement sensor on an external surface of an abdomen of the patient; applying a treatment regimen to a tissue region in proximity to the phrenic nerve; measuring a diaphragmatic movement value with the diaphragmatic movement sensor; comparing the measured diaphragmatic movement value to the established diaphragmatic movement value threshold; and generating an alert in response to the comparison.
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