A cutting knife detection method for a cutting stapler

Abstract

The invention discloses a cutting knife detection method for a cutting anastomat. The method comprises the following steps: turning on a power supply, and electrifying and clearing a detection device;setting a maximum cutting force value for detection; fixing an object to be cut to a special clamp for the object to be cut; cutting the object to be cut with a cutting knife until cutting off, wherein an AD converter receives a signal from a sensor, then converts an analog signal into a digital signal and transmits the digital signal to a data processing module, and the data processing module outputs a detection result to a display module after calculating; and comparing the detection value with the set maximum cutting force value to determine whether the sharpness of the cutting knife meetsrequirements. According to the cutting knife detection method for the cutting anastomat, the sharpness of the cutting knife is tested through data acquisition and data processing, the cutting force is digitally displayed and recorded, whether the sharpness of the cutting edge of the whole cutting knife meets the requirements or not can be effectively detected, and a strong data support is provided for improving the performance of the cutting knife.

Description

technical field [0001] The invention relates to a detection method of a surgical instrument, in particular to a detection method of a cutting knife of a cutting stapler. Background technique [0002] The cutting stapler and its executive components suitable for minimally invasive surgery are surgical instruments that can remove excess tissue while suturing the patient's wound. It is widely used in minimally invasive surgery, mainly in abdominal surgery, gynecology, and pediatrics. Resection and anastomosis of tissues in minimally invasive surgery such as thoracic surgery. There are at least two rows of staples on both sides of the cutting knife of the cutting stapler, and the two adjacent rows of staples on the same side are arranged in a staggered manner. The knife cuts off the sutured human tissue on both sides of the cutting knife. According to the scope of application, it can be divided into skin staplers, digestive tract (esophagus, gastrointestinal, etc.) circular st...

AI Technical Summary

Problems solved by technology

However, there is no effective method for detecting the sharpness of the cutting knife in the prior art. Generally, the front, middle and rear three points of the cutting knife edge are used to cut sutures with a wire diameter of 0.21 mm to 0.22 mm respectively, and then record The maximum cutting force value of the front, middle and back three points of the cutting knife, calculate the arithmetic mean value of the cutting force of the front, middle and back three points of the cutting knife, and then obtain the value of the sharpness of the cutting knife edge

This detection method has the following problems: the detection process takes a long time, the operation is cumbersome, and the detection is not comprehensive, and the obtained sharpness value is not accurate enough, and it cannot effectively avoid the situation that the patient's tissue cannot be cut due to the insufficient sharpness of the cutting knife during the operation.

Images