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    • 13. 发明授权
    • Double tube, balloon catheter produced by using double tube, and process
for producing balloon catheter
    • 使用双管制造的双管,气囊导管,以及用于制造球囊导管的方法
    • US5833672A
    • 1998-11-10
    • US849316
    • 1997-06-10
    • Keiichi KawataHidenobu UrataTetsuo ToyokawaKouichi SakaiMasaru Uchiyama
    • Keiichi KawataHidenobu UrataTetsuo ToyokawaKouichi SakaiMasaru Uchiyama
    • A61F2/958A61M25/00A61M25/14
    • A61M25/1036A61M25/1027A61M2025/0034A61M2025/1061A61M25/0029A61M25/0053A61M25/10
    • A double tube from which a balloon catheter having a high rigidity and a low fluid resistance can be easily produced by means of an extruder or the like, an apparatus for producing the double tube, a balloon catheter produced by using the double tube, and a process for producing the balloon catheter are provided. The double tube comprises an outer tube having a lumen extending from the distal end to the proximal end, and an inner tube which is provided within the outer tube and has a lumen extending from the distal end to the proximal end, wherein a longitudinal member in the strip form is provided as a connecting member which continuously connects the inner surface of the outer tube to the outer surface of the inner tube in the axial direction. A balloon catheter can be easily produced by using this double tube. An apparatus for producing a double tube is also provided which comprises a first extruding means for extruding a resin for forming an outer tube portion, a second extruding means for extruding a resin for forming an inner tube portion, and a die for forming into tubes respectively from the resins extruded from the first extruding means and the second extruding means.
    • PCT No.PCT / JP95 / 02534 Sec。 371日期:1997年6月10日 102(e)日期1997年6月10日PCT 1995年11月11日PCT PCT。 公开号WO96 / 18430 日期:1996年6月20日利用挤出机等容易地制造具有高刚性和低流体阻力的球囊导管的双管,用于生产双管的装置,使用 双管,以及用于制造球囊导管的方法。 双管包括具有从远端延伸到近端的内腔的外管,以及设置在外管内并具有从远端延伸到近端的内腔的内管,其中纵管 提供带状形式作为连接构件,其将外管的内表面沿着轴向连续地连接到内管的外表面。 可以通过使用该双管容易地制造球囊导管。 还提供了一种用于制造双管的装置,其包括用于挤出用于形成外管部的树脂的第一挤出装置,用于挤出用于形成内管部的树脂的第二挤出装置和分别形成管的模具 从第一挤出装置和第二挤出装置挤出的树脂。
    • 16. 发明授权
    • Auto tensioner
    • 自动张紧器
    • US5458542A
    • 1995-10-17
    • US278907
    • 1994-07-22
    • Kouichi SakaiHayato OumiHiroshi Suzuki
    • Kouichi SakaiHayato OumiHiroshi Suzuki
    • F16H7/08F16H7/12
    • F16H7/1227F02B2275/18F16H2007/0806F16H2007/081F16H2007/0859F16H2007/0878F16H2007/0891
    • An auto tensioner comprises a rocking member the base end portion of which is supported by a fixed shaft so that it can rock freely, and on the tip end portion of which there is a pulley that is freely rotatably supported, a torsional coil spring for applying a resilient force in the rotational direction to the rocking member so that it pushes the pulley onto the belt, a damper device located between the rocking member and a fixed projection located in a base member wherein when the rocking member is turned by the resilient force of the torsion coil spring, the bottom of the damper device and the projection supported by the base member are separated so as to move the pulley quickly, and when the rocking member is turned in the opposite direction, the rocking arm pushes the top end of the damper device, so that the pulley is displaced slowly by the movement of the damper device whereby it does not require much space, and so that it can effectively do away with slack in the belt.
    • 一种自动张紧器,包括摇动构件,其基端部由固定轴支撑,使得其能够自由摇摆,并且其顶端部分具有可自由旋转地支撑的滑轮,用于施加的扭转螺旋弹簧 向摇摆构件的旋转方向的弹性力,使得其将皮带轮推动到皮带上;阻尼装置,位于摇摆构件和位于基座构件中的固定突起之间,其中当摆动构件通过弹性力 扭转螺旋弹簧,减震装置的底部和由基部构件支撑的突起分离,以便快速地移动滑轮,并且当摇摆构件沿相反方向转动时,摇臂推动 阻尼装置,使得滑轮通过阻尼装置的移动缓慢移动,由此不需要太多的空间,并且因此能有效地消除皮带中的松弛。
    • 18. 发明授权
    • Balloon catheter
    • 气球导管
    • US06656153B1
    • 2003-12-02
    • US09508193
    • 2000-03-08
    • Kouichi SakaiTetsuo ToyokawaTakahiro Iida
    • Kouichi SakaiTetsuo ToyokawaTakahiro Iida
    • A61M2900
    • A61M25/0075A61M25/10A61M25/1006
    • A balloon catheter of the present invention has an outer tube having a first lumen inside it. At the distal end of the outer tube is connected the proximal end of the balloon portion so that a balloon space is formed inside it, the distal end of the balloon portion is joined to a cylindrical front tip portion, and pressurized fluid is introduced into and released from the balloon space through the first lumen of the outer tube so as to make the balloon portion expand or contract. Inside the first lumen of the outer tube is arranged an inner tube having a second lumen freely slidable in the axial direction. The distal end of the inner tube projects out from the distal end of the outer tube and is detachably attached to the front tip portion. The balloon catheter of the present invention may have a guidewire detachably attached to the front tip portion rather than providing the inner tube.
    • 本发明的气囊导管具有在其内部具有第一腔的外管。 在外管的远端与球囊部分的近端连接,从而在其内部形成球囊空间,球囊部分的远端接合到圆柱形前端部分,加压流体被引入和 从气球空间通过外管的第一内腔释放,以使气囊部分膨胀或收缩。 在外管的第一内腔内设置有具有沿轴向自由滑动的第二内腔的内管。 内管的远端从外管的远端突出,并且可拆卸地附接到前端部。 本发明的气囊导管可以具有可拆卸地附接到前端部分的导丝,而不是设置内管。
    • 20. 发明授权
    • Balloon catheter
    • 气球导管
    • US5683347A
    • 1997-11-04
    • US508885
    • 1995-07-28
    • Shinichi MiyataTakashi KawabataTetsuo ToyokawaKouichi Sakai
    • Shinichi MiyataTakashi KawabataTetsuo ToyokawaKouichi Sakai
    • A61M1/10A61M39/06A61N1/362
    • A61M1/1072A61M39/0613A61M2039/062
    • A balloon catheter used for intra-aortic balloon pumping (IABP). In the balloon catheter, an outer diameter of a catheter tube is not made constant in the axial direction. Rather, the outer diameter of the catheter tube from a hemostatic valve to a bifurcation, the portion which is positioned outside the patient's blood vessel, is made 3 to 30 percent larger than the outer diameter of the catheter tube from the balloon portion to the hemostatic valve, which is positioned inside the patient's blood vessel. The bifurcation has a first passage and a second passage. The first passage is communicating with a shuttle gas port and is disposed straight along the direction of the axial center of the catheter tube. In the balloon catheter, improvements in a channel resistance of a shuttle gas and in the response can be expected compared with the conventional balloon catheter, where the blood pressure measurement port (the second passage) was disposed straight along the direction of the axial center of the catheter tube and the outer diameter of the catheter tube was made constant in the axial direction.
    • 用于主动脉内球囊泵送的气囊导管(IABP)。 在气囊导管中,导管的外径在轴向不成一体。 相反,从止血阀到分叉的导管的外径(位于患者血管外部的部分)比导管的外径从气囊部分到止血部分大3至30% 阀门位于患者血管内。 分叉具有第一通道和第二通道。 第一通道与穿梭气体端口连通,并且沿导管的轴心方向直线设置。 在气囊导管中,与传统的气囊导管相比,可以预期穿梭气体的通道阻力的改善和响应中的血压测量端口(第二通道)沿着轴向中心的方向直线设置 将导管和导管的外径沿轴向保持恒定。