| 摘要 |
An implantable graft, which may be inserted into a fistula tract to occlude the primary opening of the fistula, is provided. The graft may have a curved, generally conical shape with a trumpet-like head end that continuously tapers to a smaller tail end. The graft may be an integral unit made of a single material, such as a heterograft material. Methods of closing single and multiple fistulae are also provided.
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