Method of manufacturing a differentially heat treated catheter guide wire

    公开(公告)号:USRE36628E

    公开(公告)日:2000-03-28

    申请号:US950602

    申请日:1997-10-16

    IPC分类号: A61M23/00 C12D8/06

    摘要: A catheter guide wire is provided for guiding a catheter into a body cavity such as a blood vessel. The base material constituting the wire is made of an elastic alloy wire and subjected to a heat treatment such that its flexibility is sequentially increased from its proximal to distal end portions. A thermoplastic resin or/and a coil spring can be applied to at least the distal end portion of the wire base material. A method of manufacturing the catheter guide wire is also provided. The method is characterized in that the leading end side of the base material is divided into a plurality of areas and subjected to a heat treatment by changing the heat treatment temperature and the time conditions in units of the areas so that the flexibility of the base material is sequentially increased from the proximal to distal end portions of the leading end side.

    Catheter equipped with expansible member and production method thereof
    23.
    发明授权
    Catheter equipped with expansible member and production method thereof 失效
    具有可扩展成员的导管及其制造方法

    公开(公告)号:US5250069A

    公开(公告)日:1993-10-05

    申请号:US890290

    申请日:1992-05-26

    IPC分类号: A61M25/00 A61M29/02 A61M29/04

    摘要: A catheter equipped with an expansible member for expanding a constricted portion inside a blood vessel, comprises an inner tube having a first lumen whose tip is open; an outer tube disposing coaxially with the inner tube, having the tip thereof at a position recessed by a predetermined length from the tip of the inner tube and forming a second lumen between it and the outer surface of the inner tube; a contractible or foldable expansible member having the tip portion fitted to the inner tube and the proximal portion fitted to the outer tube, and communicating with the second lumen near the proximal portion; a first opening communicating with the first lumen disposed at the proximal portion of the inner tube; a second opening communicating with the second lumen disposed at the proximal portion of the outer tube; and a rigidity imparting member disposed in at least one of the inner and outer tubes so as to extend in an axial direction. A method of production of an expansible member for use in a catheter equipped with an expansible member, comprises a step of forming a thermoplastic resin tube and heating an expansible member forming portion of this tube; a step of disposing the heated expansible member forming portion of the tube in an expansible member molding die the inner surface of which is formed in a shape obtainable when the expansible member is inflated; a step of bringing the heated expansible member forming portion of the tube disposed in the expansible member molding die into close contact with the inner surface of the molding die by pressurizing the inside of the tube; a step of cooling the expansible member forming portion of the tube; a step of removing the expansible member molding die from the tube; and a step of cutting the molded expansible member forming portion off the tube.

    摘要翻译: 配备有用于扩张血管内的收缩部分的可膨胀部件的导管包括:内管,其具有头部开口的第一内腔; 与所述内管同轴配置的外管,其外端与所述内管同轴配置,所述外管的前端处于从所述内管的前端凹入预定长度的位置,并在其与所述内管的外表面之间形成第二内腔; 可收缩或可折叠的可膨胀构件,其具有装配到内管的尖端部分和装配到外管的近端部分,并且在近端部分附近与第二腔室连通; 第一开口,与配置在内管的近端部的第一内腔连通; 第二开口,与配置在所述外管的近端部的所述第二内腔连通; 以及刚性赋予构件,其设置在所述内管和外管中的至少一个中,以沿轴向方向延伸。 一种制造用于具有可膨胀构件的导管的可膨胀构件的制造方法,包括形成热塑性树脂管并加热该管的可膨胀构件形成部分的步骤; 将管的加热的可膨胀构件形成部分设置在可膨胀构件成型模具中的步骤,其内表面形成为当可膨胀构件膨胀时可获得的形状; 通过对管的内部加压,使设置在可膨胀构件成型模具中的管的加热的可膨胀构件形成部分与模制品的内表面紧密接触的步骤; 冷却管的可膨胀部件形成部的工序; 从管中去除可膨胀构件成型模具的步骤; 以及将模制的可膨胀构件形成部分从管切割的步骤。

    Print control apparatus
    24.
    发明授权
    Print control apparatus 失效
    打印控制装置

    公开(公告)号:US5160952A

    公开(公告)日:1992-11-03

    申请号:US686836

    申请日:1991-04-17

    IPC分类号: G03B17/24 G03B27/46

    摘要: A camera which includes a setting means for setting an indication information to indicate that a data should be printed on the back surface of the printed photograph and a recording means for recording the indication signal set by setting means, and a printing apparatus which includes a reading means for reading the indication information recorded by said recording means and a control means for printing the data onto the reverse surface of the printed photograph in response to the indication information read by said reading means.

    摘要翻译: 一种照相机,包括用于设置指示信息以指示打印在打印的照片的背面上的数据的设置装置和用于记录由设置装置设置的指示信号的记录装置,以及包括读取装置 用于读取由所述记录装置记录的指示信息的装置和用于响应于由所述读取装置读取的指示信息将数据打印到打印照片的反面上的控制装置。

    Rotary head drum for video tape recorder
    25.
    发明授权
    Rotary head drum for video tape recorder 失效
    用于录像带的旋转头鼓

    公开(公告)号:US5086361A

    公开(公告)日:1992-02-04

    申请号:US507736

    申请日:1990-04-12

    摘要: A rotary head drum for a video tape recorder includes a stationary lower drum member having a base portion and inner and outer cylindrical portions extending generally upwardly from the base portion to define an internal cavity therebetween. A rotary assembly is rotatably mounted on a rotor shaft coaxial with the lower drum member and has at least one rotary magnetic head mounted thereto for recording digital signals on and reproducing the signals from a magnetic tape wrapped about the drum. A motor for driving the rotary heads, a rotation detector or tach generator for detecting the rotation of the motor, and a multi-channel rotary transformer for transferring digital signals to and from the rotary head are all housed in the cylindrical internal cavity surrounded by the base portion, and inner and outer cylindrical portions of the lower drum member which thereby reduces the overall axial height of the video tape recorder.

    Balloon catheter
    26.
    发明授权
    Balloon catheter 失效
    气球导管

    公开(公告)号:US4994032A

    公开(公告)日:1991-02-19

    申请号:US277564

    申请日:1988-11-29

    IPC分类号: A61M25/00 A61M29/02

    摘要: There is provided a balloon catheter comprising a tubular body including at least one lumen, and a foldable balloon provided at a predetermined distal portion on the outer surface of said tubular body so that the balloon communicates with at least one lumen in said tubular body, wherein reinforcement is provided at a predetermined portion on the outer surface of said tubular body surrounded by said balloon. The reinforcement is preferably formed on an X-ray opague material and in the form of a coil.

    Catheter equipped with expansible member
    27.
    发明授权
    Catheter equipped with expansible member 失效
    导管配有可扩展成员

    公开(公告)号:US4964853A

    公开(公告)日:1990-10-23

    申请号:US415345

    申请日:1989-10-26

    IPC分类号: A61M25/00 A61M29/02

    CPC分类号: A61M25/104

    摘要: A catheter equipped with an expansible member comprising an inner tube having a first lumen whose tip is open and a second lumen extending to the tip direction of the first lumen; an outer tube disposed coaxially with the inner tube and having a tip at a position recessed by a predetermined distance from the tip of the inner tube and forming a third lumen between it and the outer surface of the inner tube; a contractible or foldable expansible member having a tip end portion and a base end portion, the base end portion being fitted to the outer tube and the tip end portion being fitted to the inner tube, the expansible member communicating with the second lumen near the tip end portion and with the third lumen near the base end portion; a first opening communicating with the first lumen and a second opening communicating with the second lumen each disposed at the base end portion of the inner tube; and a third opening disposed at the base end portion of the outer tube and communicating with the third lumen.

    摘要翻译: PCT No.PCT / JP88 / 00201 Sec。 371日期1989年10月26日第 102(e)日期1989年10月26日PCT提交1988年2月25日PCT公布。 出版物WO88 / 06464 日本9月7日,1988年。一种装有可膨胀构件的导管,其包括内管,内管具有顶端开口的第一腔和延伸到第一腔的末端方向的第二腔; 外管与内管同轴设置,并且在从内管的尖端凹入预定距离的位置处具有尖端,并在其与内管的外表面之间形成第三腔; 具有前端部和基端部的可收缩或可折叠的可膨胀构件,所述基端部与所述外管嵌合,所述前端部嵌合于所述内管,所述可膨胀构件与所述第二内腔连通, 并且在基端部附近具有第三腔体; 与第一内腔连通的第一开口和与内管的基端部分配置的与第二内腔连通的第二开口; 以及第三开口,其设置在所述外管的基端部并与所述第三管腔连通。