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发明公开
CN101631590A 带有多层气囊的辐射导管 无效 - 撤回

带有多层气囊的辐射导管
摘要：
本公开涉及用来可控地对邻近身体部位(例如，去除诸如癌的组织之后留下的腔体)的组织进行照射的导管装置和方法。导管装置包括具有至少两层的可充气气囊。当从未充气状态充气至膨胀状态时，可充气气囊具有大于25％但小于200％的膨胀，该膨胀优选地大于50％但小于150％。在膨胀状态下，气囊层的聚合材料处于或接近于气囊层材料的弹性极限。气囊可包含不透射线的材料，或可由不透射线的材料制成，或涂覆有不透射线的材料，以便进行定位确认或对称性确认。
摘要（英）：

The disclosure is directed to catheter devices and methods for controlled application of irradiation to tissue adjacent a body site, such as cavity after removal of tissue, e.g. cancer. The catheter device includes an inflatable balloon having at least two layers. The inflatable balloon has an expansion of more than 25% and less than 200% when inflated from the un-inflated condition to a turgid condition, preferably more than 50% and less than 150%. In the turgid condition the polymeric material(s) of the balloon layers are at or near the elastic limit of the balloon layer material. The balloon may contain or be formed of or be coated with radiopaque material to facilitate positional or symmetry verification.

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