Scraping knife

A scraping knife relates to the field of medical instruments. The scraping knife comprises a body, a probe and a driving mechanism, the body is provided with a mounting cavity, and the mounting cavityis provided with an opening; the probe is slidably arranged in the opening in a penetrating mode, and a doctor blade is arranged at the end, away from the body, of the probe. The driving mechanism isfixedly arranged in the mounting cavity, is in transmission connection with one end, far away from the doctor blade, of the probe and is used for driving the probe to reciprocate along the opening. According to the scraping knife, existing operation inconvenience can be improved or relieved, fistula walls and endostomal hyperplasia tissue can be automatically scraped, and the scraping knife is more convenient to use. 一种刮除刀，涉及医疗器械领域。刮除刀包括：本体、探头以及驱动机构，本体设有安装腔，安装腔具有开口；探头可滑动的穿设于开口内，探头远离本体的一端设有刮片刀；驱动机构固设于安装腔内，驱动机构与探头远离刮片刀的一端传动连接，用于驱动探头沿开口往复运动。本申请提供的刮除刀，能够改善或缓解现有的操作不便，并能自动的刮除瘘管壁和内口增生组织，使用更为便捷。