-
公开(公告)号：US20240358329A1
公开(公告)日：2024-10-31
申请号：US18765581
申请日：2024-07-08
CPC分类号： A61B5/6858 , A61B5/062 , A61B5/065
摘要： In one embodiment, a system includes a catheter including an insertion tube and a first position sensor, a pusher including a second position sensor, and an expandable assembly including flexible strips disposed circumferentially around a distal portion of the pusher, with first ends of the strips connected to the distal end of the insertion tube and second ends of the strips connected to the distal portion of the pusher, the flexible strips bowing radially outward when the pusher is retracted, processing circuitry to receive a respective position signal from the first and second position sensors, compute location and orientation coordinates for the position sensors subject to a constraint that the position sensors are coaxial and have a same orientation, compute a distance between the computed location coordinates of the position sensors, and find position coordinates of the flexible strips responsively to at least the computed distance.
-
公开(公告)号：US20240350204A1
公开(公告)日：2024-10-24
申请号：US18436596
申请日：2024-02-08
发明人： Uriel Hod , Itamar Bustan , Alison D. Wright , Shmuel Auerbach , Jetmir Palushi
CPC分类号： A61B34/20 , A61B1/0005 , A61B1/018 , A61B90/37 , A61B2034/2051 , A61B2034/2055
摘要： A medical procedure navigation system includes processing circuitry configured to obtain, from an electronic storage device, data associated with a medical procedure instrument, the electronic storage device being housed within the medical procedure instrument; obtain at least one preoperative patient image; track, using one or more tracking devices, a real-time location of the medical procedure instrument and an imaging instrument; obtain, from the imaging instrument, at least one patient image; determine, based on the data associated with the medical procedure instrument, at least one feature of the medical procedure instrument; identify, based on the real-time location of the medical procedure instrument and the imaging instrument and the at least one feature, a localized view of the at least one preoperative patient image; and superimpose and display, on a display device, a localized view of the at least one preoperative patient image over the at least one patient image.
-
公开(公告)号：US20240341688A1
公开(公告)日：2024-10-17
申请号：US18631661
申请日：2024-04-10
申请人： Biosense Webster (Israel) Ltd. , Centre Hospitalier Universitaire (CHU) de Bordeaux , Université de Bordeaux , Fondation Bordeaux Université
发明人： Shubhayu Basu , Meir Bar-Tal , Mario A. Solis , Michel Haissaguerre , Pierre Jais , Meleze Hocini , Olivier Bernus , Rémi Dubois , Masateru Takigawa
CPC分类号： A61B5/6859 , A61B5/287 , A61B18/1492 , A61B2562/04
摘要： An apparatus includes a shaft and an end effector at a distal end of the shaft. The end effector is sized to fit in an anatomical passageway within a subject's cardiovascular system. The end effector includes at least one electrode pair that is configured to contact cardiovascular tissue and thereby pick up electrocardiogram signals. Each electrode pair includes first and second electrodes spaced apart along a longitudinal axis from each other by a gap area located between the electrodes, the gap area having a gap length with respect to the longitudinal axis such that a length of one of the electrodes along the longitudinal axis is equal to or greater than the gap length; and a ratio of an area defined by the gap area to one electrode area is equal to or less than one.
-
公开(公告)号：US12114920B2
公开(公告)日：2024-10-15
申请号：US17017206
申请日：2020-09-10
发明人： Assaf Govari
CPC分类号： A61B18/1492 , A61B2018/00059 , A61B2018/00214 , A61B2018/00577 , A61B2018/1405 , A61B2018/1467
摘要： An apparatus includes a shaft and an inflatable sleeve catheter. The shaft is configured for insertion through a sheath into a cavity of an organ of a patient. The inflatable sleeve catheter is fixed to a distal end of the shaft, with the inflatable sleeve catheter including (i) a resilient inner end section, which is fixed to the distal end of the shaft and is formed so as to assume a predefined shape when unconstrained, (ii) an inflatable sleeve that envelopes the inner end section, and a plurality of electrodes that are disposed over the inflatable sleeve and are configured to contact tissue.
-
公开(公告)号：US20240335155A1
公开(公告)日：2024-10-10
申请号：US18748988
申请日：2024-06-20
发明人： Lior Botzer , Meir Bar-Tal , Elad Nakar
CPC分类号： A61B5/367 , A61B5/316 , A61B5/339 , A61B5/352 , A61B5/6869 , A61B5/7239 , A61B5/743 , A61B5/287 , A61B5/6852 , A61B2505/05
摘要： A method for annotating ECG signals with a time of activation of a myocardium is provided which comprises receiving a bipolar signal and one unipolar signal of the bipolar signal from a pair of electrodes, computing a local unipolar minimum derivative of the unipolar signal at a plurality of times of occurrences of the local unipolar minimum derivative, computing a bipolar derivative of the bipolar signal, evaluating a ratio of the bipolar derivative to the local unipolar minimum derivative, annotating each time of occurrence as a time of activation of the myocardium at a location in a heart when the ratio is greater than a threshold value, extracting features of the annotations and assigning a confidence level to each feature, eliminating annotations based on a subset of the extracted features and a pair reduction analysis, and generating a local activation time map using the remaining candidate annotations.
-
公开(公告)号：US20240325077A1
公开(公告)日：2024-10-03
申请号：US18739258
申请日：2024-06-10
IPC分类号： A61B18/14 , A61B5/00 , A61B5/0538 , A61B5/287 , A61B18/00
CPC分类号： A61B18/1492 , A61B5/0538 , A61B5/287 , A61B5/6852 , A61B2018/00053 , A61B2018/00351 , A61B2018/00577 , A61B2018/00839 , A61B2018/1467 , A61B2018/1497 , Y10T29/49004
摘要： Apparatus, having an insertion tube that is configured to be inserted into a body cavity. The apparatus also includes a distal tip connected to the insertion tube, the 5 distal tip having an external surface and a cavity formed in the external surface, the cavity being surrounded by a region of the external surface having a curvature. The apparatus further includes a microelectrode configured to fit into the cavity so that a surface of the microelectrode 10 is contoured, located and oriented to conform with the curvature of the region.
-
公开(公告)号：US12102293B2
公开(公告)日：2024-10-01
申请号：US16943789
申请日：2020-07-30
发明人： Assaf Govari , Andres Claudio Altmann , Yehuda Algawi , Ilya Sitnitsky , Vadim Gliner , Yair Palti
IPC分类号： A61B1/005 , A61B1/00 , A61B1/07 , A61B1/227 , A61B1/233 , A61B1/273 , A61B18/00 , A61B18/14 , A61B90/00
CPC分类号： A61B1/005 , A61B1/00097 , A61B1/0052 , A61B1/07 , A61B1/227 , A61B1/233 , A61B1/273 , A61B18/1492 , A61B90/37 , A61B2018/00059 , A61B2018/0072 , A61B2018/00732 , A61B2018/00827 , A61B2018/00875 , A61B2018/00982 , A61B2018/1467 , A61B2090/3762
摘要： A guidewire, consisting of a flexible biocompatible tube, having a tube distal end, the tube containing an internal lumen and being configured to be inserted into an orifice of a body of a living subject. A planar resilient strip is inserted into the internal lumen, the strip having a strip proximal end and a strip distal end fixed to the tube distal end. A coil spring is fixed to the strip proximal end so that an axis of symmetry of the coil is coplanar with the strip, the coil spring containing a coil lumen. A wire is threaded through the coil lumen and has a termination fixed to the strip distal end, so that pulling on the wire causes the strip and the tube to bend.
-
公开(公告)号：US12076078B2
公开(公告)日：2024-09-03
申请号：US17141112
申请日：2021-01-04
发明人： Jeffrey L. Clark , Jeffry Tola
CPC分类号： A61B18/1492 , A61B18/14 , A61M25/0127 , A61B2018/00029 , A61B2018/00357 , A61B2018/00577 , A61B2034/2051 , A61B2218/002 , A61M2025/0073
摘要： An irrigated ablation catheter includes a tip electrode with a thin shell and a plug to provide a plenum chamber. The tip electrode has an inlet of a predetermined size and noncircular shape, and outlets in the form of fluid ports formed in the thin shell wall. The plurality of the fluid ports is predetermined, as is their diameter. Each fluid port has a tapered configuration, for example, a frustoconical configuration, with a smaller inlet diameter and a larger outlet diameter.
-
公开(公告)号：US12064250B2
公开(公告)日：2024-08-20
申请号：US17135253
申请日：2020-12-28
发明人： Yael Buchnik , Vadim Gliner , Uriel Hod
CPC分类号： A61B5/24 , A61B5/30 , A61B2018/00095 , A61B2018/00172 , A61B2018/00178 , A61B2018/00898 , A61B18/14 , A61B2562/0223 , A61B2562/18 , A61B2562/182 , A61B2562/225
摘要： Apparatus, including an enclosure having a base and a cover with respective conductive layers. The conductive layers connect to form a shield attenuating electromagnetic radiation originating outside the enclosure in a range of 10 kHz-100 kHz by at least 20 dB within the enclosure. An adapter circuit within the enclosure processes electrophysiological signals to generate an output signal. A first connector passing through the enclosure connects to a probe to receive the electrophysiological signals and convey them to the adapter circuit. A second connector passing through the enclosure receives the output signal from the adapter circuit and conveys it to a console. A control input receives a control signal indicative of a frequency within the range, and a sensing circuit senses a magnetic field within the enclosure and outputs a warning signal when the magnetic field at the frequency indicated by the control signal exceeds a preset threshold.
-
公开(公告)号：US20240268888A1
公开(公告)日：2024-08-15
申请号：US18641666
申请日：2024-04-22
CPC分类号： A61B18/1492 , A61B5/6858 , A61B2018/00375 , A61B2018/00577 , A61B2018/1467
摘要： A medical instrument includes a shaft, multiple flexible spines and multiple electrodes. The shaft is configured for insertion into a body of a patient. The multiple flexible spines have respective first ends that are connected to a distal end of the shaft and respective second ends that are free-standing and unanchored. The spines are bent proximally such that the second ends are more proximal than the first ends. Each of the flexible spines includes a tensile layer configured to cause the flexible spine to bend proximally. The multiple electrodes are disposed over the flexible spines.
-
-
-
-
-
-
-
-
-
搜索结果
2746 条记录 (耗时 0.035 秒)
