When cleaning the uterine cavity, plastic tubes are required (such as removing blood clots, mucus, debris, and cleaning liquids mixed with blood). These guide tubes must be thick enough to achieve flushing without being blocked by clots
Hysteroscopic surgical instruments are divided into three forms: hard, soft, and semi hard. Soft and semi hard instruments have a diameter of 6-9Fr (2-3mm) and can undergo intrauterine surgery through the hysteroscopic sheath. These instruments include forceps, biopsy forceps, scissors, and electrodes. Hard instruments cannot pass through the hysteroscopic sheath, but it is necessary to connect the operating sheath. Therefore, it is necessary for the connected endoscope and surgical sheath to pass through the cervix as a whole. Few doctors are accustomed to using rigid instruments.
Generally speaking, small and soft instruments are prone to breakage
In order to further deepen the reform of the medical device evaluation and approval system, based on the actual development and regulatory work of the medical device industry, and in accordance with the relevant requirements of the Regulations on the Supervision and Administration of Medical Devices, the National Medical Products Administration has decided to adjust some of the contents of the Classification Catalogue of Medical Devices. The relevant matters are hereby announced as follows:
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