Invention Grant
US07883492B2 Catheter with portions that can change in volume 有权
导管与部分可以改变体积

Catheter with portions that can change in volume
Abstract:
A catheter for administering a substance into body tissues includes an elongated catheter body that has at least one portion of the length of the catheter body that expands after the catheter is inserted in the patient's body. The portion that expands provides a seal against backflow of the substance along the outer surface of the catheter body and away from the intended treatment area.
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