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    • 29. 发明申请
    • SOFT BODY CATHETER WITH LOW FRICTION LUMEN
    • 柔软的身体导管与低摩擦的温度
    • WO2009058186A2
    • 2009-05-07
    • PCT/US2008011435
    • 2008-10-03
    • SENORX INCJONES MICHAEL LLOUW FRANK R
    • JONES MICHAEL LLOUW FRANK R
    • A61L29/06A61L29/14
    • A61L29/18A61L29/06A61L29/085A61L29/14A61L2420/06C08L75/04
    • The disclosure is directed to radiation catheter devices, methods for controlled application of irradiation to tissue at a body site, such as a cavity formed after removal of tissue, e.g. cancer, using such radiation catheter devices, solutions for forming a more lubricious luminal surface and method for lining lumens of such devices to improve the frictional characteristics thereof. The catheter device includes a flexible elongated shaft which is formed of low durometer polymeric material, which can be readily folded or coiled for securing the shaft to or under the skin of the patient and a radiation lumen lined with high durometer polymeric material and finely divided particulate to improve the frictional characteristics. The elongated shaft has at least one inner lumen for receiving a radiation source which has a layer of high durometer polymeric material that provides lower surface friction to facilitate advancement of a radiation source therein.
    • 本公开涉及辐射导管装置,用于受控地应用照射到身体部位的组织的方法,例如在去除组织后形成的空腔,例如, 癌症,使用这种辐射导管装置,用于形成更加光滑的腔表面的解决方案和用于衬里这些装置的流明以提高其摩擦特性的方法。 导管装置包括柔性细长轴,其由低硬度聚合物材料形成,其可以容易地折叠或卷绕以将轴固定到患者的皮肤上或皮下,并且内衬有高硬度聚合物材料和细碎颗粒 以提高摩擦特性。 细长轴具有用于接收辐射源的至少一个内腔,辐射源具有提供较低表面摩擦以便促进其中的辐射源的高硬度聚合材料层。