Visual rectal tumor insection edge positioning device

Abstract

The invention relates to a visual rectal tumor undercut edge positioning device. The guide pipe is used for positioning the tumor insection edge, and the inner core penetrates through the inner side of the guide pipe in a sliding mode. The front end of the inner core is provided with a camera unit, the front end of the guide tube is provided with a starting part used for abutting against the insection edge of a tumor, a scale area is arranged between the guide tube and the inner core and used for displaying the linear sliding distance of the inner core relative to the starting part, and the guide tube or the inner core is provided with a marking mechanism used for assisting in marking the rectum. The method has the advantages that a doctor can clearly quantify the excision range in an operation, difference caused by personal judgment is avoided, and the situation of excessive excision or insufficient excision is avoided. Specifically, an operator can directly judge the position of the undercut edge in the rectum cavity through scales and calibrate the position of the undercut edge on the inner surface or the outer surface of the rectum cavity.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a visual rectal tumor lower incision margin positioning device. Background technique [0002] In the surgical operation of malignant tumors of the digestive tract, it is often necessary to ensure that the upper and lower resection margins of the tumor are far enough away from the tumor to ensure that the pathological examination of the margins is negative, thereby greatly reducing the recurrence probability of anastomotic tumors. ", for different stages of rectal cancer, the distance between the distal resection margin of the tumor and the tumor is clarified, but there is still no surgical instrument that can help doctors measure the above distance during surgery, especially laparoscopic surgery, which is extremely limited, only The above distance can be roughly judged by relying on some laparoscopic surgical instruments as reference objects, so far, the distance between the distal...

AI Technical Summary

Problems solved by technology

[0002] In the surgical operation of malignant tumors of the digestive tract, it is often necessary to ensure that the upper and lower resection margins of the tumor are far enough away from the tumor to ensure that the pathological examination of the resection margin is negative, so as to greatly reduce the probability of tumor recurrence at the anastomotic stoma. 》, for different stages of rectal cancer, the distance between the distal resection margin and the tumor has been clarified, but there is still no surgical instrument that can help doctors measure the above distance during surgery, especially laparoscopic surgery, which is extremely limited, only The above-mentioned distance can be roughly judged by relying on some laparoscopic surgical instruments as reference objects. So far, the distance between the distal resection margin and the tumor in laparoscopic surgery is vague and inaccurate

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