Mammary duct positioning device

Abstract

The invention provides a mammary duct positioning device in order to solve the problems that an existing device is inconvenient to accurately position a diseased mammary duct during biopsy or operation and cannot be matched with a mammary duct endoscope for flushing and dredging. An inner core is coaxially nested in the outer sleeve, the inner core is hollow and divides the interior of the outer sleeve into an outer cavity and an inner cavity, the upper end of the inner core is in sealed connection with the outer sleeve, a plurality of square grooves evenly distributed in the circumferential direction of the outer sleeve are formed in the outer wall of the outer sleeve, the lower end of the inner core is connected with a piston through an elastic film sleeve, the piston is slidably connected into the outer sleeve, and a through hole is coaxially formed in the piston. A conical spring is arranged between the lower end of the piston and the bottom of the outer sleeve, and the two ends of each elastic piece are extruded so that the middle of each elastic piece can be extruded to protrude, penetrate through the corresponding square groove and protrude out of the outer side of the outer sleeve. The upper end of the guide wire can be in threaded connection with the inner core, a ball head is arranged at the lower end of the guide wire, an inclined hole is formed in the ball head, and two outlets of the inclined hole face the lower end and the side edge of the guide wire respectively.

Description

Technical field [0001] The present invention relates to the field of medical device technology, in particular a breast catheter positioning device. Background [0002] Discovering lesions in the duct is only the first step in early diagnosis, and more importantly how to remove the diseased tissue to obtain pathological features. At present, the most common clinical method is to inject methylene blue tracer in the milk duct where the lesion is found, perform selective discharge emulsion at the site of the adenal lobectomy, and completely remove the glandular lobe where the lesion is located. The surgical resection range is large, and the diameter of the intra-breast papilloma lesion is only 1-3 mm, and the lesion is often not found in the surgically excised specimen, and it is easy to miss the pathological material and false negative results. Since the invention of the breast tube mirror, clinicians have been trying to explore ways to use the advantages of the direct view of the b...

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a mammary duct locating device to solve the problem that the existing device is inconvenient to accurately locate the lesion duct during biopsy or operation, and cannot cooperate with the mammary duct scope to flush and dredge it. The problem

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