-
公开(公告)号：US20160081555A1
公开(公告)日：2016-03-24
申请号：US14490210
申请日：2014-09-18
CPC分类号： A61B5/0084 , A61B1/00009 , A61B1/00087 , A61B1/07 , A61B5/0075 , A61B5/0538 , A61B5/1455 , A61B5/1459 , A61B5/4836 , A61B5/6852 , A61B18/1492 , A61B2017/00057 , A61B2017/00066 , A61B2018/00357 , A61B2018/00577 , A61B2018/00636 , A61B2018/00982 , A61B2218/002 , A61B2562/0233
摘要： The depth of an ablation lesion is assessed using a differential optical response of a catheter with multiple fiberoptic transmitters and receivers at the tip. To detect tissue optical response at shallow depths, closely-spaced transmitter/receiver pairs of optical fibers are used. To detect deeper tissue response, the same or a different transmitter can be used with another receiver that is relatively farther away. The distance between the transmitter and receiver is chosen depending on the desired depth of sensing. Plateauing or peaking of the optical signal during the course of ablation indicates an end point at a selected tissue depth.
摘要翻译： 使用具有多个光纤发射器和接收器的导管的差分光学响应来评估消融损伤的深度。 为了在浅深度检测组织光学响应，使用紧密间隔的发射器/接收器对的光纤。 为了检测更深层的组织反应，相同或不同的发射器可以与相对较远的另一个接收器一起使用。 根据所需的感测深度来选择发射机和接收机之间的距离。 在消融过程中光信号的平滑化或峰化表示在所选组织深度处的终点。
-
公开(公告)号：US20150305812A1
公开(公告)日：2015-10-29
申请号：US14661307
申请日：2015-03-18
CPC分类号： A61B18/22 , A61B5/0084 , A61B5/0422 , A61B5/6852 , A61B18/1492 , A61B18/24 , A61B2017/00066 , A61B2018/00577 , A61B2018/00642 , A61B2018/00666 , A61B2018/00708 , A61B2018/00773
摘要： Tissue ablation is carried out using a probe having a distal conductive cap. At least one optical fiber is contained within the probe and terminates in proximity to an outer surface of the conductive cap. The optical fiber conveys optical radiation to the tissue while the power generator is activated and receives reflected optical radiation. An optical module measures the received reflected optical radiation, and a processor linked to the optical module analyzes the reflected optical radiation to determine impending steam pop events.
摘要翻译： 使用具有远端导电帽的探针进行组织消融。 至少一根光纤被包含在探头内并且终止于导电帽的外表面附近。 光纤在功率发生器被激活并且接收反射光辐射的同时将光辐射传送到组织。 光学模块测量所接收的反射光辐射，并且连接到光学模块的处理器分析反射的光辐射以确定即将发生的蒸汽弹出事件。
-
公开(公告)号：US12102382B2
公开(公告)日：2024-10-01
申请号：US17371008
申请日：2021-07-08
CPC分类号： A61B18/1492 , A61B2017/00185 , A61B2018/00077 , A61B2018/00136 , A61B2018/00178 , A61B2018/00267 , A61B2018/00357 , A61B2018/00577 , A61B2018/00601 , A61B2018/00613 , A61B2018/00761 , A61B2018/1253 , A61B2018/126 , A61B2018/144 , A61B2018/1467 , A61B2218/002 , A61M2025/0079
摘要： A medical probe, including a flexible insertion tube having proximal and distal ends, and a basket assembly at the distal end of the flexible insertion tube. In embodiments of the present invention, the basket assembly includes a plurality of spines and a plurality of electrodes, each of the electrodes having a lumen therethrough fitting a given spine.
-
公开(公告)号：US12064170B2
公开(公告)日：2024-08-20
申请号：US17319957
申请日：2021-05-13
CPC分类号： A61B18/1492 , A61B2017/00526 , A61B2018/00267 , A61B2018/00357 , A61B2018/00577 , A61B2018/1467 , A61B2218/002
摘要： Medical apparatus includes an insertion tube configured for insertion into a body cavity of a patient and a distal assembly, including a plurality of spines having respective proximal ends that are connected distally to the insertion tube. Each spine includes a rib extending along a length of the spine, a flexible polymer sleeve disposed over the rib and defining a lumen running parallel to the rib along the spine, and one or more electrodes disposed on the sleeve and configured to contact tissue within the body cavity.
-
公开(公告)号：US11950840B2
公开(公告)日：2024-04-09
申请号：US17028907
申请日：2020-09-22
发明人： Assaf Govari , Christopher Thomas Beeckler , Andres Claudio Altmann , Joseph Thomas Keyes , Kevin Justin Herrera
CPC分类号： A61B18/1492 , A61B34/20 , A61B2017/00526 , A61B2017/00867 , A61B2018/00077 , A61B2018/00083 , A61B2018/00267 , A61B2018/00351 , A61B2018/00577 , A61B2018/00613 , A61B2034/2051
摘要： A catheter includes a shaft for insertion into an organ of a patient, and an expandable distal-end assembly, which is coupled to the shaft and to an apex of the catheter, and includes multiple splines. In at least a given spline among the multiple splines, at least sixty percent of a length of the given spline is non-insulated and is configured to make contact with tissue of the organ and to apply radiofrequency (RF) pulses to the tissue.
-
公开(公告)号：US11918281B2
公开(公告)日：2024-03-05
申请号：US17065456
申请日：2020-10-07
CPC分类号： A61B18/1492 , A61B2017/00526 , A61B2018/00077 , A61B2018/00214 , A61B2018/00577 , A61B2018/00613 , A61B2562/166
摘要： An apparatus includes a shaft and a folding fan catheter. The shaft is configured for insertion through a sheath into a cavity of an organ of a patient. The folding fan catheter is fixed to a distal end of the shaft and includes (a) a resilient foldable frame, which is fixed to the distal end of the shaft and is configured to be unfolded so as to assume a fan shape, (b) one or more flexible surfaces, coupled to the frame to form a fan-shaped surface when the frame is unfolded, and (c) a plurality of electrodes that are disposed over the one or more flexible surfaces and are configured to contact tissue.
-
公开(公告)号：US11878095B2
公开(公告)日：2024-01-23
申请号：US17350101
申请日：2021-06-17
发明人： Christopher Thomas Beeckler , Joseph Thomas Keyes , Kevin Justin Herrera , Alexander David Squires , Kevin Mark Okarski
CPC分类号： A61M25/0147 , A61M25/005 , A61M25/0136 , A61M25/1002 , A61M25/1018 , A61M25/104
摘要： A medical probe includes a shaft, an expandable membrane and a probe maneuvering assembly (PMA). The shaft is configured for insertion into a cavity of an organ of a patient. The PMA is located inside the expandable membrane and includes a first elastic element, which is fitted along a longitudinal axis of the PMA and is configured to expand the membrane by shortening the PMA, and to collapse the membrane by elongating the PMA. The PMA further includes a second elastic element, which surrounds at least a portion of the first elastic element and is configured to deflect the membrane relative to the longitudinal axis.
-
公开(公告)号：US11737818B2
公开(公告)日：2023-08-29
申请号：US16103806
申请日：2018-08-14
CPC分类号： A61B18/1492 , A61L31/088 , A61B2017/00526 , A61B2018/0016 , A61B2018/00029 , A61B2018/00077 , A61B2018/00083 , A61B2018/00148 , A61B2018/00351 , A61B2018/00577 , A61B2218/002 , A61L2420/02 , C23F1/04
摘要： Described embodiments include an apparatus that includes an intrabody probe and an electrode coupled to a distal end of the intrabody probe. The electrode includes a flexible electrically-insulating substrate, comprising a substrate surface. The electrode further includes a layer of an electrically-conducting metal covering at least part of the substrate surface. The electrode further includes a metallic sheet, comprising an inner sheet surface, and an outer sheet surface shaped to define multiple depressions. The electrode further includes an adhesive, which fills the depressions and bonds the outer sheet surface to the layer of the electrically-conducting metal. Other embodiments are also described.
-
公开(公告)号：US11730932B2
公开(公告)日：2023-08-22
申请号：US17064424
申请日：2020-10-06
CPC分类号： A61M25/1025 , A61M25/0023 , A61M25/1006 , A61M25/1034 , A61B5/6853 , A61B18/1492 , A61B2018/00285 , A61B2018/00351 , A61B2018/00577 , A61M25/0147 , A61M25/104 , A61M25/1018 , A61M2025/0175 , A61M2025/1068 , A61M2025/1081
摘要： A medical instrument includes a shaft, a distal-end assembly and a puller-wire. The shaft is configured for insertion into a body of a patient. The distal-end assembly, which is coupled to the shaft, includes a telescopic assembly, configured to elongate so as to collapse the distal-end assembly, and to compress so as to expand the distal-end assembly. The distal-end assembly further includes an elastic element, coupled to self-elongate and thus elongate the telescopic assembly. The distal-end assembly also includes an inflatable balloon, which is coupled to the telescopic assembly and is configured to collapse by the telescopic assembly elongating, and to expand by the telescopic assembly compressing. The puller-wire runs through the shaft and is connected to a distal end of the telescopic assembly, and is configured, when pulled, to compress the telescopic assembly.
-
公开(公告)号：US20230210590A1
公开(公告)日：2023-07-06
申请号：US17566415
申请日：2021-12-30
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00267
摘要： In one exemplary mode, a catheter apparatus includes an elongated deflectable element including a distal end, a flexible puller including a distal portion, and configured to be retracted through the deflectable element, and an expandable assembly including a plurality of resilient splines, each resilient spline including at least one electrode disposed thereon, the resilient splines being disposed circumferentially around the distal portion of the puller, with first ends of the splines being coupled with the distal end of the deflectable element and second ends of the splines coupled with the distal portion of the puller, the splines being configured to bow radially outward in a relaxed form of the expandable assembly and bow further radially outward when the puller is retracted expanding the expandable assembly from the relaxed form to an expanded form.
-
-
-
-
-
-
-
-
-
搜索结果
128 条记录 (耗时 0.022 秒)
