Positioning device for implementing needle biopsy of breast tumor

Abstract

The invention provides a positioning device for implementing needle biopsy of breast tumor. The invention aims to solve the problems that an existing device cannot assist in fixing a soft breast during positioning, and tumor tissue is prone to displacement during puncture. The positioning device comprises a circular supporting disc, wherein the outer side of the supporting disc is rotationally connected with a plurality of double-layer extrusion devices, the upper end of the supporting disc is provided with a supporting rod, the supporting rod is slidably connected with a moving seat, a structural hole is formed in the axis of the bottom of the supporting disc, an avoiding groove is formed in the side wall of the supporting rod, and a suction cup device is arranged in the structural hole and the avoiding groove; a puncture needle guiding device is arranged on the side edge of the supporting disc, and a rotating sleeve is rotationally connected to the upper end of the supporting rod and fixedly connected to a main support body; and a double-layer extrusion device comprises an outer-layer plate rotationally connected to the side edge of the supporting disc, the outer-layer plate is in an arc shape, an inner-layer plate is hinged to the lower end of the outer-layer plate, a tension spring is arranged between the outer-layer plate and the inner-layer plate, a sliding rail is arranged at the upper end of the inner-layer plate, clamping teeth are arranged in the sliding rail, an extrusion rod is rotationally connected to the outer-layer plate, and the lower end of the extrusion rod can be clamped with the clamping teeth.

Description

technical field [0001] The invention relates to the technical field of breast puncture biopsy positioning equipment, in particular to a positioning device for breast tumor puncture biopsy. Background technique [0002] Breast cancer resection, especially radical resection, is a very heavy blow to the patient's physiology and psychology, so a clear preoperative diagnosis is an important principle of breast cancer surgery; there are many diagnostic methods for breast cancer, including physical examination, mammary gland X-ray film, B-ultrasound, breast duct endoscopy, etc., but the final diagnosis still depends on pathological diagnosis; biopsy (abbreviated as biopsy) is the most commonly used means to obtain preoperative pathological diagnosis, which includes needle biopsy and surgical biopsy. Compared with surgical biopsy, needle biopsy has less damage to normal tissue, no scar, patients only need local anesthesia, and the cost is relatively low. Most importantly, needle b...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a breast tumor puncture biopsy positioning device to solve the problem that the existing device cannot assist in fixing the soft breast during positioning, and the tumor tissue is prone to displacement during puncture

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