Importance

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Abstract

Disclosed herein is a drawstring for removal of a stent. The drawstring includes a circumferential string which is made of soft material and is formed in an end of the stent body in an annular shape. A hook loop is formed by tying opposite ends of the circumferential string to each other. The hook loop protrudes a relatively long distance from the stent body. A marking wire made of radiopaque material is wound around the hook loop. Therefore, when X-rays or endoscope are applied to a relative portion of a patient's body, the position of the hook loop can be easily detected. Furthermore, because the hook loop is made of flexible and soft material, even though it comes into contact with an internal organ of the patient's body, the organ is prevented from being damaged by the hook loop.

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First Claim