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191.发明申请公开(公告)号：US20220148260A1
公开(公告)日：2022-05-12
申请号：US17525077
申请日：2021-11-12
Inventor： Carlos Carbonera , Vasily Vylkov , Daniel R. Starks , Jiang Qian , Eric J. Voth
Abstract: A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.
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公开(公告)号：US11324550B2
公开(公告)日：2022-05-10
申请号：US16195249
申请日：2018-11-19
Inventor： D. Curtis Deno , Stephan P. Miller
IPC: A61B18/12 , A61B18/14 , A61B5/00 , A61B5/06 , A61B90/00 , A61B5/01 , A61B18/02 , A61B18/00 , A61N7/02 , A61B5/0538 , A61B17/00
Abstract: A system and method for assessing effective delivery of ablation therapy to a tissue in a body is provided. A three-dimensional anatomical map of the tissue is generated and displayed with the map defining a corresponding volume. An index is generated corresponding to a location within the volume with the index indicative of a state of ablation therapy at the location. The index may be derived from one or more factors such as the duration an ablation electrode is present at the location, the amount of energy provided, the degree of electrical coupling between an ablation electrode and the tissue at the location and temperature. A visual characteristic (e.g., color intensity) of a portion of the anatomical map corresponding to the location is then altered responsive to the index.
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公开(公告)号：US11179193B2
公开(公告)日：2021-11-23
申请号：US14776497
申请日：2014-03-14
Inventor： Fermin Armando Lupotti
Abstract: An elongate medical device may include an elongate body having a proximal end portion and a distal end portion and defining a longitudinal axis extending from the proximal end portion to the distal end portion. The elongate medical device may further include a basket assembly coupled to the distal end portion comprising a plurality of ablation elements, each of the ablation elements configured to ablate a respective target, the basket assembly disposed on a radial exterior of the elongate body. The elongate medical device may further include an imaging transmitter disposed radially-inward of the ablation elements and configured to project imaging energy towards at least one of the respective targets.
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公开(公告)号：US20210282846A1
公开(公告)日：2021-09-16
申请号：US17216309
申请日：2021-03-29
Inventor： Steven C. Christian
IPC: A61B18/14
Abstract: An irrigated ablation electrode assembly comprises a distal member, a first manifold, and a second manifold. The distal member includes an outer surface; an inner surface; and at least one radially extending passageway that extends from the inner surface of the distal member to the outer surface of the distal member. The first manifold includes an outer surface, an inner cavity, and at least one radially extending passageway that extends from the inner cavity to the outer surface of the first manifold. The second manifold includes an outer surface, an inner surface, and at least one radially extending passageway that extends from the inner surface of the second manifold to the outer surface of the second manifold. Other irrigated ablation electrode assemblies are also presented.
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公开(公告)号：US11116941B2
公开(公告)日：2021-09-14
申请号：US15103723
申请日：2014-11-20
Inventor： Sameer Pai
Abstract: Catheter curve shape struts for steerable medical devices such as catheters are disclosed. These struts may not only help shape a steerable portion of a medical device (e.g., a distal portion of a catheter), but also may help to return a steered or deflected portion of the medical device to an uncurved configuration when it is no longer desirable or necessary to steer or deflect the medical device. These struts may include first and second pluralities of complementary, staggered cutout regions. When used in a catheter that is deployed via an introducer, at least some configurations of the catheter curve shape strut can enable the catheter to be rotated about its longitudinal axis, even when the distal deflectable section is in a curved configuration and inside of the introducer.
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Patent Agency Ranking
公开(公告)号：US20210212757A1
公开(公告)日：2021-07-15
申请号：US17193859
申请日：2021-03-05
Inventor： Steven C. Christian , Theodore A. Johnson
IPC: A61B18/14
Abstract: A system for providing irrigation fluid during ablation of tissue includes a catheter, an electrode assembly, at least one thermal sensor adapted to be connected to the catheter, and a control system. The electrode assembly is adapted to be connected to an ablation generator. The thermal sensor is adapted to be operatively connected to an electronic control unit (ECU). The ECU receives as an input temperature measurement data from the thermal sensor; determines a power delivery rate value for the ablation generator responsive to the temperature measurement data; and outputs the power delivery rate value. The control system also delivers irrigation fluid to the irrigated catheter at a first flow rate in a first time period and at a second flow rate in a second time period that is temporally after the first time period. The second flow rate is at least half of the first flow rate.
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公开(公告)号：US20210205576A1
公开(公告)日：2021-07-08
申请号：US17171728
申请日：2021-02-09
Inventor： John W. Sliwa , Stephen A. Morse
IPC: A61M25/00 , A61B18/14 , A61M25/01 , C25D1/00 , B23K26/382 , C23C28/02 , C25D1/02 , C25D1/20 , C25D3/48 , C25D3/50
Abstract: A deflectable, flexible device includes an elongate body, a convoluted tip portion at a distal end of the elongate body, and a lumen to receive one or more wires. The convoluted tip portion includes an electroformed pleated region which is formed by electrodepositing a metal on a mandrel having a pleated region. The convoluted tip portion may be hermetically sealed to permit repeated sterilization. The electroformed pleated region may include one or more fluid emission orifices. The convoluted tip portion extends or bends in response to fluid pressure manipulation, contact with tissue, manipulation with an internal spring or wire, or by a user pushing, pulling, or twisting the catheter directly or via an introducer sheath or the like. The convoluted tip portion may further include an RF ablation element or other energy-driven technique to create continuous linear lesions or a sensing element.
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公开(公告)号：US10973571B2
公开(公告)日：2021-04-13
申请号：US15860503
申请日：2018-01-02
Inventor： Steven C. Christian , Theodore A. Johnson
Abstract: A system for providing irrigation fluid during ablation of tissue includes a catheter, an electrode assembly, at least one thermal sensor adapted to be connected to the catheter, and a control system. The electrode assembly is adapted to be connected to an ablation generator. The thermal sensor is adapted to be operatively connected to an electronic control unit (ECU). The ECU receives as an input temperature measurement data from the thermal sensor; determines a power delivery rate value for the ablation generator responsive to the temperature measurement data; and outputs the power delivery rate value. The control system also delivers irrigation fluid to the irrigated catheter at a first flow rate in a first time period and at a second flow rate in a second time period that is temporally after the first time period. The second flow rate is at least half of the first flow rate.
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公开(公告)号：US10946166B2
公开(公告)日：2021-03-16
申请号：US15403380
申请日：2017-01-11
Inventor： John W. Sliwa , Stephen A. Morse
IPC: C25D1/00 , C25D1/02 , C25D1/20 , A61M25/00 , A61B18/14 , A61M25/01 , B23K26/382 , C23C28/02 , C25D3/48 , C25D3/50 , B23K101/08 , B23K103/08
Abstract: A deflectable, flexible device includes an elongate body, a convoluted tip portion at a distal end of the elongate body, and a lumen to receive one or more wires. The convoluted tip portion includes an electroformed pleated region which is formed by electrodepositing a metal on a mandrel having a pleated region. The convoluted tip portion may be hermetically sealed to permit repeated sterilization. The electroformed pleated region may include one or more fluid emission orifices. The convoluted tip portion extends or bends in response to fluid pressure manipulation, contact with tissue, manipulation with an internal spring or wire, or by a user pushing, pulling, or twisting the catheter directly or via an introducer sheath or the like. The convoluted tip portion may further include an RF ablation element or other energy-driven technique to create continuous linear lesions or a sensing element.
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公开(公告)号：US10932723B2
公开(公告)日：2021-03-02
申请号：US15974339
申请日：2018-05-08
Inventor： Braden J. Eliason , D. Curtis Deno , Eric J. Voth , Dale E. Just
Abstract: An electrophysiology catheter is provided. In one embodiment, the catheter includes an elongate, deformable shaft having a proximal end and a distal end and a basket electrode assembly coupled to the distal end of the shaft. The basket electrode assembly has a proximal end and a distal end and is configured to assume a compressed state and an expanded state. The electrode assembly further includes one or more tubular splines having a plurality of electrodes disposed thereon and a plurality of conductors. Each of the plurality of conductors extends through the tubular spline from a corresponding one of the plurality of electrodes to the proximal end of the basket electrode assembly. The tubular splines are configured to assume a non-planar (e.g., a twisted or helical) shape in the expanded state.
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