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公开(公告)号：US20230310070A1
公开(公告)日：2023-10-05
申请号：US18186014
申请日：2023-03-17
Applicant: Japan Lifeline Co., Ltd.
Inventor： Kohei SAKAKI , Makoto KATO , Ryo ISHIDA
CPC classification number: A61B18/1492 , A61M25/0067
Abstract: Provided is a catheter in which a spline changes its shape into an intended shape. A catheter includes a shaft to be inserted into the body, a plurality of splines connected to the distal end side of the shaft, and a distal end member connected to the distal end side of the splines. The plurality of splines include a first spline and a second spline. The first spline and the second spline are located adjacent to each other and their motions are restrained by a first restraining member.
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公开(公告)号：US20230118399A1
公开(公告)日：2023-04-20
申请号：US17908736
申请日：2020-03-27
Applicant: JAPAN LIFELINE CO., LTD.
Inventor： Tomoharu KOISO , Aki HOSHIDA , Masaki YOSHINUMA , Kenji MORI , Takeshi MACHINO , Akira SATO , Nobuyuki MURAKOSHI
IPC: A61M25/00
Abstract: A drug solution injection needle includes: a distal end member being a sharp member and made of metal; a connecting tube having electrical insulating properties connected to a base end side of the distal end member; a metal tube connected to a base end side of the connecting tube; and an insulating layer covering an outer circumferential surface of a base end portion of the metal tube. The connecting tube and/or the distal end member includes at least one hole communicating with a cavity of the drug solution injection needle and open to an outer surface of the connecting tube or the distal end member, and an electrode configured to measure electric potential is formed by a distal end portion of the metal tube not covered by the insulating layer.
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公开(公告)号：US20220133203A1
公开(公告)日：2022-05-05
申请号：US17310795
申请日：2019-03-26
Applicant: JAPAN LIFELINE CO., LTD.
Inventor： Yuto IIJIMA
Abstract: To prevent unintended concentration of radially protruding arm members. An electrode catheter (1) includes a catheter body (10) and an electrode unit (100) attached to a distal-end portion (10a) of the catheter body. The electrode unit includes a plurality of arm members (110) in which a one-end portion (110a) in a longitudinal direction is supported by the catheter body and the other-end portion (110b) in a longitudinal direction radially protrudes from the distal-end portion of the catheter body, ring-shaped electrodes (120) attached to the arm members, and core wires (130) as regulating units that regulate actions of adjacent ones of the arm members.
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公开(公告)号：US20170354463A1
公开(公告)日：2017-12-14
申请号：US15679912
申请日：2017-08-17
Applicant: Japan Lifeline Co., Ltd.
Inventor： Kenji Mori
CPC classification number: A61B18/1492 , A61B2018/00023 , A61B2018/00083 , A61B2018/0022 , A61B2018/00267 , A61B2018/00375 , A61B2018/00577 , A61B2018/00642 , A61B2018/00738 , A61B2018/00839 , A61M25/0147
Abstract: It is an object of the present invention to provide a balloon-type ablation catheter that can measure the electric potential around the entire circumference of the pulmonary vein at a position near the left atrium with electrodes attached to a catheter distal end part of an electrode catheter inserted in a shaft in a state where a balloon is pressed against the area around the ostium of the pulmonary vein. The balloon-type ablation catheter of the present invention includes a catheter shaft (10) having a multi-lumen structure in which a plurality of lumens (11 to 17) are formed that include a liquid feeding lumen (13), (16) and an electrode catheter insertion lumen (12), a distal end tip (30) attached to the distal end of the catheter shaft (10), a balloon (50) attached to the distal end part of the catheter shaft (10), and a high-frequency current application electrode (70) provided in the balloon (50). A side hole (32) that communicates with the electrode catheter insertion lumen (12) and that opens on the side peripheral surface of the distal end tip (30) is formed in the distal end tip (30).
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公开(公告)号：US20170319138A1
公开(公告)日：2017-11-09
申请号：US15659166
申请日：2017-07-25
Applicant: Japan Lifeline Co., Ltd.
Inventor： Takuya Masuda
CPC classification number: A61B5/6852 , A61B5/01 , A61B5/687 , A61B2560/0431 , A61M25/00
Abstract: Provided is a catheter that includes a catheter tube and a temperature sensor. The catheter tube includes a tip-flexible part and a base end part. The base end part includes a first base end section having rigidity higher than the tip-flexible part, and a second base end section having rigidity lower than the first base end section. The tip-flexible part has an axial length from 40 mm to 100 mm, the first base end section has an axial length from 200 mm to 400 mm, and the second base end section has an axial length from 200 mm to 900 mm. A value of the rigidity of each of the first and the second base end sections decreases linearly from the first base end section to the second base end section, in a region around a boundary between the first base end section and the second base end section.
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Patent Agency Ranking
公开(公告)号：US20170281270A1
公开(公告)日：2017-10-05
申请号：US15507582
申请日：2015-07-28
Applicant: Japan Lifeline Co., Ltd.
Inventor： Takuya Masuda
CPC classification number: A61B18/1492 , A61B5/01 , A61B5/4233 , A61B5/6855 , A61B8/12 , A61B8/445 , A61B2018/00351 , A61B2018/00488 , A61B2018/00577 , A61B2018/00791 , A61B2018/00797 , A61M25/008 , A61N1/0517
Abstract: Provided is a catheter that is manufacturable in a simplified fashion. The catheter 1 includes: a catheter tube 11 including a tip-flexible part 11A that has an inner tube (first tube 61) and a plurality of divided tube members 620 to 625 that are disposed on outer circumference of the inner tube and independent of each other; one or a plurality of metal rings disposed in the tip-flexible part 11A; one or a plurality of temperature sensors disposed corresponding to the one or the plurality of metal rings; and a handle 12 attached at a base end of the catheter tube 11. A rate of a thickness of the metal ring to an outer diameter of the metal ring is 7.5% or greater. The metal ring and the plurality of divided tube members 621 to 625 are both so disposed in the tip-flexible part 11A as to be fitted on an outer circumferential surface of the inner tube side by side in an axial direction of the catheter tube 11.
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公开(公告)号：US20250041563A1
公开(公告)日：2025-02-06
申请号：US18665125
申请日：2024-05-15
Applicant: Japan Lifeline Co., Ltd.
Inventor： Hiroki KAMIYAMA , Atsuto KIMURA , Tsubasa IMAI
Abstract: A catheter shaft includes a shaft main body having a multi-lumen structure, and at least one reinforcement layer embedded in the shaft main body. When, during a tensile test of pulling a test piece obtained from the catheter shaft under test conditions of a 30-mm distance between chucks and a tensile speed of 300 mm/min, a percentage of change amount in a minimum outer diameter of the test piece after pulling to the minimum outer diameter before pulling at a predetermined position of the test piece is defined as a diameter reduction percentage (%), and a percentage of change amount in an axial-direction dimension of the catheter shaft after pulling to the axial-direction dimension before pulling is defined as an elongation percentage (%), the diameter reduction percentage is 5% or greater when the elongation percentage reaches 100% without breakage of the test piece in the tensile test.
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公开(公告)号：US20250041087A1
公开(公告)日：2025-02-06
申请号：US18739972
申请日：2024-06-11
Applicant: Japan Lifeline Co., Ltd.
Inventor： Yuki TOYODA , Junya NAGANO
Abstract: A stent graft of the present disclosure includes a graft having a cylindrical shape and an end stent connected to at least an axial end of the graft. The end stent includes a hooking portion hooked on a stent constraining mechanism of a delivery device so as to constrain expansion of the end stent, the hooking portion includes a part protruding from the axial end of the graft to an outer side in an axial direction, and a protrusion length of the part is configured to be shortened by expansion of the axial end of the graft together with the end stent. The variable range of the protrusion length of the hooking portion may include zero.
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公开(公告)号：US20240316311A1
公开(公告)日：2024-09-26
申请号：US18592064
申请日：2024-02-29
Applicant: Japan Lifeline Co., Ltd.
Inventor： Yuki TOYODA , Eiichi NAKANO
CPC classification number: A61M25/0017 , A61M25/0102
Abstract: A delivery device includes: an indwelling device including a stent body that is self-expandable; and a delivery catheter configured to separably support the indwelling device. The delivery catheter includes: a cover configured to cover at least a part of an axial range of the stent body; and an expansion restraining mechanism including a plurality of restraining wire rods configured to restrain expansion of the stent body by hooking a stent wire rod that constitutes the stent body. The plurality of restraining wire rods are configured to release restraint of the stent body by moving axially.
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公开(公告)号：US11934246B2
公开(公告)日：2024-03-19
申请号：US17941759
申请日：2022-09-09
Applicant: Japan Lifeline Co., Ltd.
Inventor： Hisao Miyamoto , Yusuke Oshima
IPC: G06F1/32 , G06F1/3206 , G06F1/3287
CPC classification number: G06F1/3206 , G06F1/3287
Abstract: Object
Provided is a power supply device and the like capable of improving convenience.
Solving means
A power supply device according to an embodiment of the present disclosure include a power supply unit that supplies power to an electromedical device, a first impedance control unit disposed on a path of a circulation path of the power between the power supply unit and the electromedical device, excluding an input path for inputting an electrical signal obtained in the electromedical device to another device, and a second impedance control unit disposed on the input path of a path between the power supply unit and the other device. An impedance state of each of the first and second impedance control units transitions in accordance with a supply state of the power to the electromedical device.
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