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公开(公告)号：US20240090943A1
公开(公告)日：2024-03-21
申请号：US18517738
申请日：2023-11-22
发明人： Troy T. Tegg
CPC分类号： A61B18/1492 , A61B18/18 , A61B2018/00797
摘要： Aspects of the present disclosure are directed to, for example, a high-thermal-sensitivity ablation catheter tip including a thermally-insulative ablation tip insert supporting at least one temperature sensor electrically coupled to a flexible electronic circuit and encapsulated, or essentially encapsulated, by a conductive shell. Also disclosed is a method of controlling the temperature of an ablation catheter tip while creating a desired lesion using various forms of energy and energy delivery.
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公开(公告)号：US11813410B2
公开(公告)日：2023-11-14
申请号：US16767081
申请日：2018-11-28
发明人： Gregory K. Olson , Rishi Manda , Travis Dahlen , Troy T. Tegg , Brian M. Monahan , Russell D Terwey
IPC分类号： A61M25/01 , A61B17/34 , A61B17/00 , A61B5/02 , A61M25/00 , A61M25/10 , A61B18/14 , A61B18/02 , A61B18/00 , A61B34/00
CPC分类号： A61M25/0026 , A61M25/0009 , A61M25/0032 , A61M25/0144 , A61M25/10 , A61B18/1492 , A61B34/25 , A61B2017/00327 , A61B2017/00867 , A61B2018/00357 , A61B2018/00577 , A61B2018/00791 , A61B2018/00821 , A61B2018/0212 , A61B2018/1405 , A61B2218/002 , A61M25/0045 , A61M25/0054 , A61M25/0136 , A61M25/0141 , A61M25/0147 , A61M2025/0035 , A61M2025/0036 , A61M2025/0037 , A61M2025/0046 , A61M2025/0063
摘要： An elongate medical device comprising an expandable structure with an expandable configuration and a collapsed configuration, a handle, operably coupled to the expandable structure, the handle further including a selective movement limiter; and a deflection control member coupled with the distal hub, where the deflection control member is configured to adjust a stiffness of the expandable structure, from a first stiffness to a second stiffness, and maintain the first stiffness or the second stiffness when the selective movement limiter couples with the deflection control member and limits a longitudinal movement of the deflection control member, and wherein the deflection control member is configured to move freely when the selective movement limiter is not coupled with the deflection control member.
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公开(公告)号：US11617861B2
公开(公告)日：2023-04-04
申请号：US17101944
申请日：2020-11-23
发明人： Sameer D. Pai , Zachary L. Helgeson , Troy T. Tegg
IPC分类号： A61M25/00 , A61M25/01 , A61B18/14 , A61B5/00 , A61B5/0215 , A61B5/024 , A61B5/287 , A61B18/00
摘要： A catheter with three distinct compression resistance coils, including a body coil and two pull wire coils, is disclosed. The triple coil system can provide maximal resistance to compression of the catheter's proximal shaft, as well as maximization of the curve angle that the catheter tip can achieve. Additionally, the tri-coil catheter can allow for a lower initial compression load and a more flexible proximal shaft. A gap between the outer diameter of the pull wire and the inner diameter of the pull wire compression coil that is equal to about 10-30% of inner diameter of the pull wire compression coil can provide optimal catheter performance.
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公开(公告)号：US20210177505A1
公开(公告)日：2021-06-17
申请号：US16758799
申请日：2018-10-26
摘要： An elongate medical device having a device longitudinal axis and a device distal region, the medical device comprising a balloon at the device distal region and having a balloon longitudinal axis, the balloon comprising a balloon inflatable portion with a first length configured to transition from a deflated state to an inflated state and includes a portion of the balloon proximal portion and a portion of the balloon distal portion, a balloon proximal portion with a second length, a balloon distal portion with a third length, wherein, in the inflated state, the balloon is symmetrical about the balloon longitudinal axis and the balloon comprises a first profile shape with a second length and a second profile shape with a third length, and wherein the balloon distal portion comprising the second profile shape comprises a tissue contacting surface where a substantial portion of the tissue contacting surface is concave.
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公开(公告)号：US20210177483A1
公开(公告)日：2021-06-17
申请号：US16758793
申请日：2018-10-15
IPC分类号： A61B18/02
摘要： The instant disclosure relates to electrophysiology catheters for tissue ablation. In particular, the instant disclosure relates to a cryogenic ablation balloon with a catheter handle that interfaces with capital equipment.
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公开(公告)号：US10987490B2
公开(公告)日：2021-04-27
申请号：US16311571
申请日：2017-06-20
发明人： Gregory K. Olson , Troy T. Tegg
摘要： A steerable introducer has a proximal end and a distal end, and includes a steerable sheath having a proximal end and a distal end. The steerable sheath includes an outer layer extending from the proximal end to the distal end of the steerable sheath, and an inner liner disposed within the outer layer and extending from the proximal end to the distal end of the steerable sheath. A first pair of pull wires is disposed between the inner liner and the outer layer, and extends from the proximal end to the distal end of the steerable sheath. A second pair of pull wires is disposed between the inner liner and the outer layer and extends from the proximal end to the distal end of the steerable sheath.
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公开(公告)号：US10751118B2
公开(公告)日：2020-08-25
申请号：US15461003
申请日：2017-03-16
发明人： Timothy G. Curran , Troy T. Tegg
摘要： A multiple thermocouple assembly with a reduced wire count is configured for use in an ablation catheter tip. In at least one embodiment, the assembly comprises a first metal material comprising a plurality of junctions; a plurality of conductors comprising a second metal material, each conductor connected to the first metal material at one of the plurality of junctions; and a common conductor that is physically paired with at least one of the plurality of conductors at a corresponding common conductor junction such that the common conductor forms a thermocouple pair with each of the plurality of conductors.
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公开(公告)号：US20200085483A1
公开(公告)日：2020-03-19
申请号：US16467333
申请日：2017-12-04
发明人： Troy T. Tegg , Gregory K. Olson
IPC分类号： A61B18/02
摘要： The instant disclosure relates to electrophysiology catheters for tissue ablation within a cardiac muscle. In particular, the instant disclosure relates to an ablation balloon and catheter shaft that deflects to conform to a shape of a target pulmonary vein receiving ablation therapy for a cardiac arrhythmia, for example. The deflection of the catheter shaft enables a lesion line along a circumference of the target pulmonary vein with improved consistency.
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公开(公告)号：US10555790B2
公开(公告)日：2020-02-11
申请号：US15406013
申请日：2017-01-13
发明人： Saurav Paul , Troy T. Tegg , John P. Gerhart , Tianhong Cui , Miao Lu
摘要： Methods of manufacturing a flexible force sensor include forming a first sensor part providing a plurality of spaced first electrode plates in an electrically non-conductive material. A second sensor part is also formed and includes a plurality of second electrode plates in an electrically non-conductive material. The second electrode plates are identical to the first electrode plates at least in terms of spacing. The first part is assembled to the second part such that each of the first electrode plates are aligned with and parallel to, yet spaced from, respective ones of the second electrode plates, establishing a plurality of capacitive sensing components. The first electrode plates are movable relative to the corresponding second electrode plates, establishing a variable gap therebetween. The sensor parts can be ring-shaped. The sensor parts can be formed via MEMS techniques, with the non-conductive material being a polymer.
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公开(公告)号：US10118022B2
公开(公告)日：2018-11-06
申请号：US14724210
申请日：2015-05-28
发明人： Zachary L. Helgeson , Troy T. Tegg , Alexander C. Houck , Xuan Y. Khieu , Salome Gonzalez , Somally Mom , John Her
摘要： A deflectable catheter shaft section is disclosed comprising an elongated body extending along a longitudinal axis with a distal end and a proximal end. First and second pull wires can extend along the elongated body and can have a proximal end and a distal end. First and second pull wire liners can be disposed over a portion of one of the first and second pull wires, respectively. Each of the first and second pull wires can have a proximal end and a distal end. A first gap can exist between the proximal end of the first pull wire liner and the proximal end of the elongated body and a second gap can exist between the proximal end of the second pull wire liner and the proximal end of the elongated body.
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