The traditional treatment of breast disease is surgical excision of the lesion, which is more traumatic and prone to scarring. As the standard of living and the awareness of the majority of patients have increased, the demand for medical technology has also increased, and more minimally invasive and precise technology has become a trend. The EnCor (Ankor) Automatic Breast Vacuum Assisted Sampling System invented by SenoRx, Inc. was approved by the U.S. FDA for clinical use in 2002. In 2008, our State Food and Drug Administration granted registration. In 2012, our hospital took the lead in introducing this high-end instrument and new technology to provide more minimally invasive and accurate technical services to patients with breast diseases. The EnCor Automatic Breast Vacuum Sampling System is the most advanced minimally invasive breast treatment system in the world, which is based on more accurate biopsy, sufficient amount of tissue (10-15 strips of 3mm thick x 20mm long, one strip is eight times of the ordinary thick needle), and more minimally invasive characteristics under the three-dimensional positioning of ultrasound or molybdenum target, and cannot be performed with other methods. It is a very useful tool for the diagnosis and treatment of breast diseases that cannot be performed by other methods. It is mainly composed of three major devices: the rotary cutter handle, the control host, and the vacuum suction pump. It is designed to be simple and easy to use, and has multiple functions. The EnCor system uses vacuum negative pressure to suction the breast tissue, completely automatically and repeatedly cutting the breast lesion without repeatedly feeding and withdrawing the needle, without repeated manual operation, greatly shortening the whole operation time; in addition, adding unique features such as LCD screen display of the surgical process; pre-set surgical procedures; triple concave head design; rapid evacuation of accumulated blood; and various needle types. In addition, if the patient is in pain during the operation, the anesthetic can be supplemented from behind the rotary cutter, which can significantly reduce the patient’s pain; and markers can be placed after the operation. Minimally invasive rotary mastectomy can be performed on an outpatient basis, requiring only local anesthesia and a short operative time, and the patient can go home after surgery. There is very little bleeding during the procedure, only a very small incision, no postoperative scars and minimal patient trauma. Indications for mastectomy biopsy surgery include: 1. Microscopic breast tumors that cannot be touched clinically and found by B-ultrasound: biopsy tumor tissue can be obtained through the guidance of B-ultrasound. Suspected breast lesions (e.g. calcified spots, nodular hyperplasia): other biopsy methods cannot obtain sufficient amount of tissue for pathological diagnosis. This system can obtain a sufficient amount of biopsy tumor tissue through image guidance. 3.Benign tumor: Mammography or B-ultrasound examination for benign breast masses. This system can completely remove benign masses below 3cm through B-ultrasound guidance with only a 2-3mm incision to achieve minimally invasive treatment.