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    • 55. 发明申请
    • Balloon Dilatation Catheter Provided with Soft Coating
    • 气球扩张导管提供柔软涂层
    • US20130158590A1
    • 2013-06-20
    • US13809160
    • 2011-12-14
    • Hannah GuiWill Chen
    • Hannah GuiWill Chen
    • A61M29/02
    • A61M29/02A61M25/0045A61M25/104A61M2025/0081A61M2025/1088A61M2025/1093
    • The present invention relates to technical field of cardiac medical instruments, and more particularly to a balloon dilatation catheter provided with soft coating up, the balloon dilatation catheter provided with soft coating tip of the present invention, the balloon dilatation catheter comprises a balloon, and inner catheter. A distal end of the balloon at a terminal end of the inner catheter extends outward to form a catheter tip with taper inner cavity. A tip coating layer made of a material which is softer than a material of the balloon is coated on the catheter tip, The material of the balloon generally selects a relatively hard material. The distal end of the balloon extends outward to form a catheter tip. The material forming the inner cavity is harder, so that the inner layer the tip with greater hardness together with the inner hydrophilic coating layer can effectively reduce the occurrence of the dead lock toward the guide wire, so as to ensure the unhindered operation of a surgery and anti reduce the occurrence of medic it accidents. When in a operation with a tip coating layer made of a material which is softer than a material of the balloon is coated on the catheter tip, the injury to the blood vessel when the tip is having contact with the blood vessel is minimized so that a further injury to the cardiovascular system of the patient is prevented.
    • 本发明涉及心脏医疗器械的技术领域,更具体地说,涉及一种具有软涂层的球囊扩张导管,具有本发明软涂层尖端的球囊扩张导管,球囊扩张导管包括球囊和内 导管。 在内导管的终端处的气囊的远端向外延伸以形成具有锥形内腔的导管末端。 由比气囊材料更软的材料制成的尖端涂层涂覆在导管尖端上。气囊的材料通常选择相对硬的材料。 气囊的远端向外延伸以形成导管尖端。 形成内腔的材料更硬,使得内层具有更大硬度的尖端与内部亲水性涂层一起可以有效地减少针对导丝的死锁的发生,从而确保手术的不受阻碍的操作 并防止发生医疗事故。 当在具有比气囊的材料更柔软的材料制成的尖端涂层的操作中涂覆导管尖端时,当尖端与血管接触时对血管的损伤最小化,使得 防止对患者的心血管系统的进一步损伤。