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公开(公告)号：US20240341841A1
公开(公告)日：2024-10-17
申请号：US18587123
申请日：2024-02-26
CPC分类号： A61B18/1492 , A61B2018/00267 , A61B2018/00375 , A61B2018/00577 , A61B2018/1467 , A61B2218/002
摘要： Various catheters are provided herein for recording, mapping, and/or ablating target tissue to reduce or eliminate unwanted electrical impulses. In one embodiment, a catheter can have a handle, an elongate body, and an end effector. The end effector has expanded and contracted configurations and can rotate about the elongate body. A plurality of electrodes can also be disposed on the end effector for recording, mapping, and/or ablating target tissue surrounding the catheter. The handle can guide the end effector through transitioning between the configurations and rotating about the elongate body.
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公开(公告)号：US12114918B2
公开(公告)日：2024-10-15
申请号：US16541374
申请日：2019-08-15
CPC分类号： A61B18/1492 , A61B5/287 , A61B5/6853 , A61B5/6858 , A61B5/6885 , A61B2018/00029 , A61B2018/0022 , A61B2018/00267 , A61B2018/00375 , A61B2018/00386 , A61B2018/00577 , A61B2018/00613 , A61B2018/00821 , A61B2018/00839 , A61B2018/00845 , A61B2018/00875 , A61B2018/00958
摘要： A system includes an expandable distal end of a catheter and a processor. The expandable distal end has multiple electrodes that are configured to be placed in contact with a tissue in an organ and to apply ablative power to tissue. The processor is configured to, during application of the ablative power, determine whether a physical contact between the electrodes and tissue meets a predefined contact quality, and, if the physical contact of an electrode among the electrodes with the tissue does not meet the predefined contact quality, re-use the electrode for electrophysiological (EP) sensing.
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公开(公告)号：US11986231B2
公开(公告)日：2024-05-21
申请号：US17325307
申请日：2021-05-20
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：US11911096B2
公开(公告)日：2024-02-27
申请号：US17124943
申请日：2020-12-17
CPC分类号： A61B18/1492 , A61B2018/00351 , A61B2018/00363 , A61B2018/00375 , A61B2018/00577 , A61B2018/00613 , A61B2018/00892 , A61B2018/126 , A61B2018/1467 , A61B2034/2051
摘要： A system includes a catheter, a pulse generator and a controller. The catheter is configured for insertion into a body of a patient, and includes at least a first electrode, a second electrode and a third electrode, which are disposed at a distal end of the catheter and are configured to contact tissue within the body. The pulse generator is configured to apply one or more bipolar ablation pulses between the first and second electrodes, for ablating the tissue in contact with the first and second electrodes. The controller is configured to: (i) control the pulse generator to apply the one or more bipolar ablation pulses between the first and second electrodes, (ii) receive a signal indicative of a voltage, measured between the third electrode and a reference during application of the ablation pulses, and (iii) issue a notification in response to detecting that the voltage violates a predefined criterion.
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公开(公告)号：US11890044B2
公开(公告)日：2024-02-06
申请号：US16467343
申请日：2017-12-05
发明人： Troy T. Tegg , Salo Arias , Derek Sutermeister
CPC分类号： A61B18/02 , A61B18/1492 , A61B2018/00166 , A61B2018/00255 , A61B2018/00351 , A61B2018/00375 , A61B2018/00577 , A61B2018/00791 , A61B2018/00946 , A61B2018/00994 , A61B2018/0212 , A61B2018/0262 , A61B2090/064 , A61B2090/065 , A61B2218/002 , A61B2218/007 , A61M25/0116 , A61M25/0127 , A61M25/0136
摘要： The instant disclosure relates to electrophysiology catheters for tissue ablation. In particular, the instant disclosure relates to a cryogenic ablation balloon with safety features that facilitate identification of a leak into an interstitial space between inner and outer balloons as part of the ablation balloon catheter assembly, and prevents egress of cryogenic fluid out of the ablation balloon.
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公开(公告)号：US11872057B2
公开(公告)日：2024-01-16
申请号：US16963804
申请日：2019-01-22
发明人： Ji Feng , Jie Gong , Lirong Wang
CPC分类号： A61B5/6853 , A61B18/02 , A61B2017/00331 , A61B2017/00867 , A61B2018/0022 , A61B2018/00375 , A61B2018/00577 , A61B2018/0212
摘要： An annular mapping catheter includes a catheter body. The catheter body has a distal end and a proximal end. The distal end of the catheter body is provided with a distal end assembly, and the proximal end of the catheter body is provided with a handle. The distal end assembly is made of a head end catheter that has a shape memory function. The distal end assembly in a free state presents a predetermined bent shape including an annular part and a vertical part. The vertical part connects the annular part to the catheter body. The distal end assembly is provided with an electrode. The annular mapping catheter can detect an electrocardiogram activity near a pulmonary vein ostium and can better locate a cryoballoon in the heart.
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公开(公告)号：US11857250B2
公开(公告)日：2024-01-02
申请号：US16983425
申请日：2020-08-03
发明人： Timothy J. Corvi , Ricardo D. Roman
CPC分类号： A61B18/1492 , A61B2017/003 , A61B2018/00351 , A61B2018/00357 , A61B2018/00375 , A61B2018/00577 , A61B2018/00642 , A61B2018/00702 , A61B2018/00726 , A61B2018/00821 , A61B2018/1407 , A61B2018/1467 , A61B2018/1807
摘要： A medical device is disclosed, including a handle assembly; an elongate body coupled to the handle assembly, the elongate body defining a guide wire lumen therethrough; and a substantially semi-circular electrode array coupled to the elongate body. The device may include a substantially rigid shaft extending distally from the elongate body and defining a lumen therethrough, the shaft including a substantially rigid segment, and a flexible coil coaxial with and extending distally from the shaft.
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公开(公告)号：US20230380894A1
公开(公告)日：2023-11-30
申请号：US18233424
申请日：2023-08-14
CPC分类号： A61B18/1492 , A61B18/1206 , A61B2018/00375
摘要： A system for ablating bodily tissue of a patient includes a high-voltage electrical generator configured to provide electrical pulses of at least 500 volts, a fluid having an electrical conductivity of not more than 0.01 Siemens per meter, and an ablation catheter that includes a catheter shaft, an expandable membrane attached to the catheter shaft, and a plurality of electrodes, each electrically coupled to the high-voltage electrical generator. The fluid inflates the expandable membrane when provided to the interior space of the expandable membrane.
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公开(公告)号：US11819265B2
公开(公告)日：2023-11-21
申请号：US16940831
申请日：2020-07-28
发明人： Assaf Govari
CPC分类号： A61B18/1492 , A61B2017/00115 , A61B2018/0022 , A61B2018/00351 , A61B2018/00375 , A61B2018/00577 , A61B2018/00613 , A61B2018/00714 , A61B2018/00839 , A61N1/327
摘要： An irreversible electroporation (IRE) includes setting an initial IRE protocol for applying IRE pulses by electrodes of a catheter placed in contact with tissue in an organ. A notification is issued to a user upon determining that the initial IRE protocol is expected to cause bubbles in blood. In response to the notification, user input is received from the user, that selects between the initial IRE protocol and an alternative protocol that is not expected to cause the bubbles. The IRE pulses are applied according to the initial IRE protocol or the alternative IRE protocol, depending on the user input.
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公开(公告)号：US11806126B2
公开(公告)日：2023-11-07
申请号：US16612385
申请日：2018-05-10
IPC分类号： A61B5/06 , A61B34/20 , A61B34/00 , G06N20/00 , A61B5/0538 , A61B5/00 , A61B18/02 , A61B18/14 , A61B18/00
CPC分类号： A61B5/063 , A61B5/0538 , A61B5/6853 , A61B18/02 , A61B18/1477 , A61B34/20 , A61B34/25 , G06N20/00 , A61B2018/0022 , A61B2018/00357 , A61B2018/00375 , A61B2018/00577 , A61B2018/0212 , A61B2034/2046
摘要： Methods and systems for position determination of an intrabody probe, targets of an intrabody probe, and or actions to be performed using an intrabody probe are described. In some embodiments, an anatomy being navigated and/or mapped is described by a rule-based schema relating different anatomically identified structures to one another according to their ability to help identify and/or locate one another. Additionally, in some embodiments, data recorded from the intrabody probe is processed according to schema rules in order to provide anatomical identification of the anatomical region which the intrabody probe is sampling, optionally without performing detailed mapping, and/or prior to the availability of detailed mapping of anatomical geometry.
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