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公开(公告)号：US20190269368A1
公开(公告)日：2019-09-05
申请号：US16376537
申请日：2019-04-05
Inventor： John A. Hauck , Jeffrey A. Schweitzer , Kedar Ravindra Belhe , Jeff Burrell
Abstract: A system for ablating tissue includes an ablation catheter for insertion into the body of a patient and a robotic controller for moving the catheter within the body. The robotic controller advances the catheter until the catheter contacts the tissue surface, maintains contact between the catheter and the tissue surface, and moves the catheter along a predetermined path to create a substantially continuous lesion of ablated tissue. A display device may be used to present a graphical representation of an area of tissue to be ablated. A user interface permits selection of a plurality of treatment points on the graphical representation. The interface is preferably coupled to the controller and catheter such that the controller may cause the catheter to automatically ablate tissue at and between the plurality of treatment points in response to the received user input.
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公开(公告)号：US10400101B2
公开(公告)日：2019-09-03
申请号：US15602979
申请日：2017-05-23
Inventor： Xiaoping Guo , David P. Johnson , Richard E. Stehr
Abstract: The invention relates to biocompatible polycarbonate/polyamide polymer compositions for use in medical and surgical devices. Additional additives, crosslinking agents, phosphites, and optionally a radiopaque filler or fillers can be used to produce the high performance compositions desired. The polymer compositions have improved melt processability along with balanced or enhanced physical and mechanical properties, especially when combined or over-extruded onto or covering other polymer layers, such as soft and/or flexible layers commonly used in medical device applications and catheter tips, for example. The ability to incorporate radiopaque compounds into these polymer compositions during melt processing offers improved methods for monitoring and visualizing medical devices when used inside the body and as well as improving the operating characteristics of the medical device components.
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公开(公告)号：US20190183373A1
公开(公告)日：2019-06-20
申请号：US16212353
申请日：2018-12-06
Inventor： Mark B. Kirschenman
CPC classification number: A61B5/0422 , A61B5/6885 , A61B18/1492 , A61B2018/00577 , A61B2018/00642 , A61B2018/00875 , A61M25/01 , A61M2205/332 , A61N1/056 , G01L1/005 , G01L1/16 , G01L5/00
Abstract: An elongate medical device may comprise an elongate tubular body, an electrode, and a trace. The elongate tubular body may comprise a distal end portion and a proximal end portion, the body defining a longitudinal axis. The electrode may comprise electrically-conductive ink extending circumferentially about a portion of the distal end portion. The trace may comprise electrically-conductive ink, electrically coupled with the electrode, extending proximally from the electrode.
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公开(公告)号：US10188459B2
公开(公告)日：2019-01-29
申请号：US15348823
申请日：2016-11-10
Inventor： Carlo Pappone , Alan de la Rama , Peter C. Chen , Cary Hata , Jared A. Shimizu
Abstract: A flexible tip electrode for an ablation catheter is disclosed. The catheter includes a catheter body and a hollow elongate tip electrode disposed at a distal end of the catheter body. The electrode includes a sidewall provided with one or more elongate gaps extending therethrough. The one or more elongate gaps providing flexibility in the sidewall for bending movement of the tip electrode relative to a longitudinal axis of the catheter body.
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215.发明申请公开(公告)号：US20180344982A1
公开(公告)日：2018-12-06
申请号：US16001677
申请日：2018-06-06
Inventor： Troy T Tegg
CPC classification number: A61M25/0147 , A61B5/01 , A61B5/042 , A61B5/6852 , A61B18/14 , A61B18/1492 , A61B2018/00821 , A61B2018/00839 , A61B2217/007 , A61M25/0009 , A61M25/0026 , A61M25/0136 , A61M25/0144 , A61M2025/0059 , A61M2025/015 , Y10T29/49863
Abstract: A deflectable catheter shaft section is disclosed comprising an elongated body extending along a longitudinal axis and comprising a distal end and a proximal end; and a plurality of lumens extending along the longitudinal axis of the elongated body, wherein at least one of the lumens is abutting at least another one of the lumens. A catheter comprising the deflectable catheter shaft section and a method of manufacturing the deflectable catheter shaft section are also disclosed. A catheter incorporating a deflectable catheter shaft section can further comprise first and second compression coils disposed over pull wires located within the catheter, wherein the compression coils are unattached to the catheter or components thereof, but can be constrained by a shaft coupler at a distal end of each of the compression coils and by at least a portion of a handle assembly at a proximal end of each of the compression coils.
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Patent Agency Ranking
公开(公告)号：US10143516B2
公开(公告)日：2018-12-04
申请号：US14311515
申请日：2014-06-23
Inventor： Rassoll Rashidi
Abstract: A remotely deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart. The distal end of the catheter has a pair of tension/compression members each with a flattened end portion connected to the distal electrode and extending through the catheter casing and attached to an actuator for effecting the tension/compression thereon for remotely curling the distal end of the catheter. Spaced ring electrodes are provided adjacent the distal electrode. A permanent bend is pre-formed in the casing and tension/compression members adjacent the ring electrodes about an axis perpendicular to the elongated tension/compression members. Movement of the remote actuator causes the distal portion of the catheter to curl into a lariat in a plane perpendicular to the axis along the elongated catheter casing, thus permitting electrical mapping or ablation with the distal and/or ring electrodes.
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217.发明授权公开(公告)号：US10130791B2
公开(公告)日：2018-11-20
申请号：US15294424
申请日：2016-10-14
Inventor： Wayne A. Heideman , Allen M. Fuentes , Richard E. Stehr , Sarah E. Cumming
Abstract: The instant invention relates generally to catheters and to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter catheters and introducer catheters having a torque transfer layer that includes at least two flat wires braided into a wire mesh. The flat wires have a width of at least about 0.007 inches and a depth of at least about 0.003 inches. The lumen diameter of the catheter is at least about 6 French. The torque transfer layer provides increased strength, flexibility, and kink resistance.
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公开(公告)号：US10130421B2
公开(公告)日：2018-11-20
申请号：US14993616
申请日：2016-01-12
Inventor： Kirk Kochin Wu , Yongxing Zhang
Abstract: Magnetic guided ablation catheters and methods of manufacture are disclosed. In an exemplary embodiment, a catheter includes a unitary flexible tubing having a proximal end and a distal end. A plurality of magnets are positioned along an axis of the unitary flexible tubing, the plurality of magnets provided within the unitary flexible tubing. During operation, the plurality of magnets are responsive to an external magnetic field to selectively position and guide the catheter within a body of a patient.
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公开(公告)号：US20180256249A1
公开(公告)日：2018-09-13
申请号：US15911908
申请日：2018-03-05
Inventor： Reed R. Heimbecher , Saurav Paul , John M. Berns , Jeffrey A. Schweitzer
IPC: A61B18/14
CPC classification number: A61B18/1492 , A61B18/18 , A61B34/30 , A61B90/04 , A61B2018/0022 , A61B2018/00285 , A61B2018/00642 , A61B2018/00696 , A61B2018/00714 , A61B2018/00779 , A61B2018/00869 , A61B2018/00875 , A61B2018/00898 , A61B2018/00904 , A61B2034/301
Abstract: A monitoring, managing and protecting system is provided that includes a monitoring probe working in conjunction with an ablating device. The probe is configured to be positioned in close proximity to a region of non-targeted tissue proximate an ablation site of targeted tissue and to be operatively connected to an electrical response assessment system or component. The probe includes an elongate shaft having proximal and distal ends, with a handle disposed at the proximal end thereof and a tissue monitoring and protecting apparatus disposed at the distal end thereof. The ablating device includes an elongate shaft having proximal and distal ends, with a handle mounted at the proximal end thereof and an ablation element mounted at the distal end thereof. The monitoring probe measures electrical characteristics of the non-targeted tissue and/or of the tissue between the monitoring electrode and the ablation electrode. The electrical response assessment system determines whether the tissue is being damaged based on the electrical measurements. The monitoring, managing and protecting system can notify a practitioner based on the determination, or modify or stop the ablation procedure.
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公开(公告)号：US20180243531A1
公开(公告)日：2018-08-30
申请号：US15963813
申请日：2018-04-26
Inventor： Xiaoping Guo , Richard E. Stehr
IPC: A61M25/00 , B29C47/02 , A61M25/01 , B29C61/00 , B29D23/00 , B29C63/00 , B29K27/18 , B29K105/16 , B29L31/00
CPC classification number: A61M25/005 , A61M25/0009 , A61M25/0012 , A61M25/0043 , A61M25/0045 , A61M25/0108 , A61M2025/0059 , A61M2205/32 , B29C48/151 , B29C61/006 , B29C63/0069 , B29D23/001 , B29K2027/18 , B29K2105/16 , B29L2031/7542
Abstract: A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes.
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