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公开(公告)号：US20210275806A1
公开(公告)日：2021-09-09
申请号：US17227924
申请日：2021-04-12
Inventor： Saurav Paul , Troy T. Tegg , Israel A, Byrd , Riki Thao , Harry A. Puryear , Linda Nemec
Abstract: Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal. An analyzer determines an electrode temperature based on the detector output and predetermined spectrum versus temperature calibration data.
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公开(公告)号：US10987162B2
公开(公告)日：2021-04-27
申请号：US15873574
申请日：2018-01-17
Inventor： Steven C. Christian
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：US10898685B2
公开(公告)日：2021-01-26
申请号：US15846710
申请日：2017-12-19
Inventor： Troy T. Tegg
Abstract: An elongate medical device with independently-deflectable segments and a handle for manually deflecting those segments can include a shaft having a distal segment and proximal segment, at least one proximal segment deflection wire adapted to deflect the proximal segment, at least one distal segment deflection wire adapted to deflect the distal segment independent of the proximal segment, and a handle portion. The handle portion may comprise a first manual actuation mechanism coupled to the at least one distal segment deflection wire and a second manual actuation mechanism coupled to the at least one proximal segment deflection wire. Actuation of the first manual actuation mechanism may impart a tensile force on the distal segment deflection wire to cause the distal segment to deflect, and actuation of the second manual actuation mechanism may impart a tensile force on the proximal segment to cause the proximal segment to deflect.
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公开(公告)号：US10709500B2
公开(公告)日：2020-07-14
申请号：US16216671
申请日：2018-12-11
Inventor： Huisun Wang
Abstract: An irrigated ablation catheter includes a shaft having a proximal end, a distal end, and an irrigation lumen therein. The catheter further includes an electrode assembly coupled to the distal end of the shaft. The electrode assembly includes an ablation electrode and a manifold. The manifold is coupled to each of the distal end of the shaft and the proximal end of the electrode. At least a portion of the manifold is constructed of a flexible material to allow the electrode assembly to deflect. The manifold includes a body, an inner cavity within the body configured for fluid communication with the irrigation lumen, and an irrigation port also within the body and configured for fluid communication with the inner cavity. The irrigation port extends from the inner cavity to the outer surface of the body, and is configured to allow for an irrigating fluid to be distributed from the manifold.
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公开(公告)号：US10687725B2
公开(公告)日：2020-06-23
申请号：US14946864
申请日：2015-11-20
Inventor： John A. Hauck
Abstract: A method of tracking a position of a catheter within a patient includes securing a navigational reference at a reference location within the patient, defining the reference location as the origin of a coordinate system, determining a location of an electrode moving within the patient relative to that coordinate system, monitoring for a dislodgement of the navigational reference from the initial reference location, for example by measuring the navigational reference relative to a far field reference outside the patient's body, and generating a signal indicating that the navigational reference has dislodged from the reference location. Upon dislodgement, a user may be provided with guidance to help reposition and secure the navigational reference to the initial reference location, or the navigational reference may be automatically repositioned and secured to the initial reference location. Alternatively, a reference adjustment may be calculated to compensate for the changed reference point/origin.
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Patent Agency Ranking
公开(公告)号：US10675444B2
公开(公告)日：2020-06-09
申请号：US15342539
申请日：2016-11-03
Inventor： James V. Kauphusman , Allan M. Fuentes , Troy T. Tegg
Abstract: A deflectable medical device incorporates a strut that is configured to reduce or eliminate axial shortening of the deflectable portion of the medical device, for example, the deflectable distal end portion of a catheter or access sheath. The strut may is coaxially disposed in the medical device in the section that is contemplated to undergo the repeated deflection. The strut provides improved column strength and axial restoration. The strut may be stent-like device, an elongate device having opposing ends coupled by a connecting lattice involving a plurality of helical connecting elements or a tube having a plurality of circumferentially-extending slots arranged in longitudinally-extending rows.
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公开(公告)号：US10561371B2
公开(公告)日：2020-02-18
申请号：US14800910
申请日：2015-07-16
Inventor： Lev A. Koyrakh , Eric J. Voth , John A. Hauck , Jeffrey A. Schweitzer
Abstract: A system for determining a location of an electrode of a medical device (e.g., a catheter) in a body of a patient includes a localization block for producing an uncompensated electrode location, a motion compensation block for producing a compensation signal (i.e., for respiration, cardiac, etc.), and a mechanism for subtracting the compensation signal from the uncompensated electrode location. The result is a corrected electrode location substantially free of respiration and cardiac artifacts. The motion compensation block includes a dynamic adaptation feature which accounts for changes in a patient's respiration patterns as well as intentional movements of the medical device to different locations within the patient's body. The system further includes an automatic compensation gain control which suppresses compensation when certain conditions, such as noise or sudden patch impedance changes, are detected.
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公开(公告)号：US10512419B2
公开(公告)日：2019-12-24
申请号：US15285653
申请日：2016-10-05
Inventor： Michael W. Craven , Timothy R. Jarvis
Abstract: A medical system (100) is disclosed that provides a respiratory-based control of at least one medical procedure. In this regard, the medical system (100) includes one or more appropriate sensors (108) for providing respiratory data on a patient (104). This respiratory data is utilized by respiration assessment logic (116) to determine if the respiratory data has exceeded one or more respiration thresholds and which may be equated with a “sudden” respiratory event. Identification of such a sudden respiratory event by the logic (116) results in the suspension of the noted medical procedure. Patient respiration data may also be displayed, for instance in a color that depends upon its magnitude or level.
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公开(公告)号：US10478597B2
公开(公告)日：2019-11-19
申请号：US15585195
申请日：2017-05-03
Inventor： Daniel J. Potter
Abstract: A medical catheter includes a deflectable and compressible catheter shaft; a pull ring near a distal end of the catheter shaft; a distal tip that includes a tip element and a mounting shaft; and an attachment apparatus for securely attaching the distal tip to the catheter shaft, the attachment apparatus including a compression ring which compresses the catheter shaft and the mounting shaft together. The compression ring can be located around the catheter shaft to compress the catheter shaft against an outer surface of the mounting shaft, or within the catheter shaft to compress the catheter shaft outwardly against an inner surface of the mounting shaft. The catheter can be a non-irrigated ablation catheter, with the tip element being a tip electrode, and it can be an irrigated ablation catheter, with the distal tip including a fluid manifold.
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公开(公告)号：US10441187B2
公开(公告)日：2019-10-15
申请号：US15592290
申请日：2017-05-11
Inventor： Valtino X. Afonso , Jiazheng Shi , Steven J. Kim , D. Curtis Deno , Dennis J. Morgan
IPC: A61B5/042 , A61B5/04 , A61B5/00 , A61B5/044 , A61B5/0452 , A61B5/06 , A61B5/053 , A61B18/14 , A61B18/00 , A61B34/20 , A61B34/00
Abstract: An efficient system for diagnosing arrhythmias and directing catheter therapies may allow for measuring, classifying, analyzing, and mapping spatial electrophysiological (EP) patterns within a body. The efficient system may further guide arrhythmia therapy and update maps as treatment is delivered. The efficient system may use a medical device having a high density of sensors with a known spatial configuration for collecting EP data and positioning data. Further, the efficient system may also use an electronic control system (ECU) for computing and providing the user with a variety of metrics, derivative metrics, high definition (HD) maps, HD composite maps, and general visual aids for association with a geometrical anatomical model shown on a display device.
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