Needle drop detection system for anastomat

Abstract

The invention discloses a stapler missing needle detection system, which includes a computer, a camera, a light source lamp, and a stapler positioning device. The camera is composed of a CMOS image sensor and a CMOS camera; the stapler positioning device includes a base, a clamp seat, a clamp, and a lens frame , guide rail, lifting mechanism, dovetail column guide rail is installed on the base, and a lifting mechanism is installed on the dovetail groove block that matches with the dovetail guide rail. The seat is fixedly connected with the fixture through the dovetail groove, ground glass is placed on the base under the fixture, a light source is placed under the ground glass, the center of the camera lens fixed on the lens frame, the center of the fixture, and the center of the workpiece to be measured in the fixture are on the same vertical line. The system can effectively identify the components of missing needles, judge the number of missing needles, ensure the validity of the detection from two aspects of accuracy and precision, and has the characteristics of fast speed and simple structure.

Description

technical field [0001] The invention relates to a missing needle detection system of a stapler, in particular to an online automatic detection system of a missing needle of a stapler. Background technique [0002] The working principle of various staplers / staplers is the same as that of a stapler, firing and implanting two rows of interlaced staples into the tissue to perform double-row cross-stitching of the tissue, and the suturing is tight to prevent leakage; according to different surgical sites needs, divided into different shapes and specifications. Most staplers use two rows of interlaced staples. The number of needles in each stapler ranges from a dozen to thirty, but the staples are slender (0.2-0.3mm), numerous in number, and easy to fall off. If the needle is missed, it may cause incomplete stapling, anastomotic bleeding, stenosis, intestinal fistula and other complications, which will directly affect the treatment effect. Therefore, it is particularly important...

AI Technical Summary

Problems solved by technology

[0003] After a survey of domestic stapler manufacturers, it was found that they all use eyes to check for missing needles, which is energy-intensive and time-consuming, and the detection effect cannot be guaranteed. form a misjudgment

It is known from the literature review that in addition to using eyes to check for leaked needles, some foreign manufacturers use X-rays to detect the situation of stapler leaked needles. This method is very accurate, but there may be a risk of radiation leakage. , which poses a potential threat to the operator. At the same time, the production cost of the enterprise is also high, and domestic stapler manufacturers are unwilling to use this method.

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