749results about How to "Reduce infection rate" patented technology

The invention relates to a vacuum-assisted mammary gland sample biopsy and rotary cutting system. A puncture head is fixedly connected to the front end of an outer cutter tube, a sampling groove is formed in the outer cutter tube, an inner cutter tube is sleeved with the outer cutter tube, a stirring disc is arranged at the rear end of the inner cutter tube which is connected with a transmission module, the transmission module is used for providing the two kinds of movements of rotating and advancing and retreating, a circuit control module is connected with the transmission module through a driving module to achieve driving control over the transmission module, and the vacuum-assisted mammary gland sample biopsy and rotary cutting system is controlled to perform cutting and suction surgical actions through operation buttons on the control module. By means of modularization and integration optimization design of a mechanical structure, the functions of surgical puncture, mechanical rotary cutting and vacuum suction are integrated in a probe region of the device, smaller surgical pain and postoperative trauma are caused on a patient with suspected mammary gland cancer with the smaller size of the system and the reasonable excision mode, and minimally-invasive biopsy sampling on a suspected tumor focus and minimally-invasive excision treatment on benign tumor can be achieved.