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    Method of producing needle cannula with reduced end portion by electrochemical etching
    23.
    发明授权
    Method of producing needle cannula with reduced end portion by electrochemical etching 有权

    公开(公告)号：US11065396B2

    公开(公告)日：2021-07-20

    申请号：US16093940

    申请日：2017-04-06

    申请人： Novo Nordisk A/S

    发明人： Jacqueline Trosborg ,  Jens Christian Uggerhoej

    IPC分类号： A61M5/32 ,  A61L29/02 ,  C25F3/06 ,  C22C38/40 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00

    摘要： A needle cannula (100) and a method for producing a needle cannula comprising providing a needle cannula tube (10) with an end portion (30). The end portion (30) comprises an outer surface, and a given type of steel comprising carbon (C) in 0.07 to 0.15% by mass, silicon (Si) in 0.50 to 1.00% by mass, manganese (Mn) in 5.0 to 7.5% by mass, phosphorus (P) in 0 to 0.030% by mass, sulfur (S) in less than or equal to 0.015% by mass, chromium (Cr) in 17.5 to 19.5% by mass, nickel (Ni) in 6.5 to 8.5% by mass, and nitrogen (N) in 0.20 to 0.30% by mass. The method further comprises establishing an electrochemical reaction to remove material from the outer surface of the end portion (30), and thereby providing a needle cannula (100) with a tapered end portion.

    INTRAVASCULAR MAPPING CATHETER WITH IRRIGATED BASKET ASSEMBLY
    24.
    发明申请
    INTRAVASCULAR MAPPING CATHETER WITH IRRIGATED BASKET ASSEMBLY 审中-公开

    公开(公告)号：US20200178897A1

    公开(公告)日：2020-06-11

    申请号：US16214608

    申请日：2018-12-10

    申请人： Oscor Inc.

    发明人： Thomas P. Osypka ,  Timothy Searfoss ,  Allan Fuentes

    IPC分类号： A61B5/00 ,  A61B5/042 ,  A61L29/02

    摘要： An intravascular catheter system for cardiac mapping is disclosed which includes a housing having opposed proximal and distal portions, an elongated catheter shaft operatively associated with the distal portion of the housing, an elongated electrical conduit operatively associated with the proximal portion of the housing and an elongated irrigation conduit operatively associated with the proximal portion of the housing, wherein an irrigated basket assembly is operatively associated with a distal end portion of the catheter shaft and it includes a plurality of circumferentially arranged electrically insulated tubular splines each having a plurality of longitudinally spaced apart mapping electrodes thereon.

    DUAL DOUBLE BALLOON CATHETER
    25.
    发明申请
    DUAL DOUBLE BALLOON CATHETER 审中-公开

    公开(公告)号：US20200171285A1

    公开(公告)日：2020-06-04

    申请号：US16781068

    申请日：2020-02-04

    申请人： BEST MEDICAL INTERNATIONAL, INC.

    发明人： Manny R. Subramanian

    IPC分类号： A61M25/10 ,  A61M25/00 ,  A61N5/10 ,  A61L29/16 ,  A61L29/06 ,  A61L29/02 ,  A61K51/12 ,  A61M5/00

    摘要： A dual double balloon catheter includes a catheter having a proximal end portion, a central portion and a distal end portion, and a secondary treatment balloon for a catheter. The catheter includes a plurality of lumens within the catheter extending from the proximal end portion, a plurality of inflatable balloons positioned in the central portion and a secondary treatment balloon communicatively associated with the distal end portion of the catheter, and the balloons and the secondary treatment balloon being communicatively connected with a corresponding one of the plurality of lumens to selectively inflate/deflate the corresponding inflatable balloon or to receive a radioactive dose or a therapeutic agent for a treatment.

    Catheter
    29.
    发明申请
    Catheter 审中-公开

    公开(公告)号：US20190192812A1

    公开(公告)日：2019-06-27

    申请号：US16291182

    申请日：2019-03-04

    申请人： TERUMO KABUSHIKI KAISHA

    发明人： Takito Inukai ,  Yuya Otake ,  Mariko Maruyama ,  Kouta Hamuro ,  Mitsuteru Yasunaga

    IPC分类号： A61M25/00 ,  A61M25/01 ,  A61L29/02

    CPC分类号： A61M25/005 ,  A61L29/02 ,  A61M25/00 ,  A61M25/0045 ,  A61M25/0108 ,  A61M2025/0059

    摘要： A catheter is disclosed having a distal end portion of a shaft with high breaking strength even if a wall thickness of the distal end portion of the shaft is relatively small. The catheter includes an elongated tube shaped shaft. The shaft has an inner layer having a lumen along a longitudinal direction, an outer layer covering an outer peripheral side of the inner layer, and a reinforcement body disposed on the outer peripheral side of the inner layer. The outer layer has a distal outer layer on a distal end portion of the shaft, an intermediate outer layer proximal to the distal outer layer, and a proximal outer layer proximal to the intermediate outer layer. The intermediate outer layer is more flexible and thicker than the proximal outer layer, and a distal end of the reinforcement body is located proximal to a distal end of the intermediate outer layer.