Surgical instrument locating assembly used in laparoscopic surgery

Abstract

The invention discloses a surgical instrument locating assembly used in the laparoscopic surgery. A surgical instrument is fixed on a fixing device, and comprises an actuating end extending into the abdominal cavity and a power end mounted on the fixing device (2), wherein a long pipe structure is arranged between the power end and the actuating end, a locating assembly carries out locating on thelong pipe structure, and the locating assembly at least comprises a sleeve (211) fixed on the fixing device and used for passing through of the long pipe structure.

Description

technical field [0001] The present invention relates to laparoscopic surgical instruments. Background technique [0002] Laparoscopic surgery is a newly developed minimally invasive method, and it is an inevitable trend in the development of future surgical methods. With the rapid development of industrial manufacturing technology, the integration of related disciplines has laid a solid foundation for the development of new technologies and methods. Coupled with the increasingly skilled operation of doctors, many open operations in the past have now been replaced by endovascular surgery. Greatly increased surgical options. The traditional method of retroperitoneal laparoscopic surgery is to make three small incisions of 1 cm on the patient's waist, each inserting a tube-shaped working channel called "trocar", and all subsequent operations are performed through these three channels; and then special lengthened surgical instruments are used Complete the same steps as open su...

AI Technical Summary

Problems solved by technology

There is very little space for the various operating arms to meet, and many of these existing machines move from a plane parallel to the abdominal cavity, which is very easy to interfere with each other, reducing the speed and effect of the operation

[0008] At the same time, most of the existing surgical instrument installation components achieve multiple degrees of freedom through the composition of the R pair and the P pair. During the operation of the surgical robot, the gravity of the surgical instrument and the end of the component will seriously affect the stability of the surgical instrument.

[0009] Further, the existing surgical instrument is fixed on the fixing device. Usually, the surgical instrument includes an execution end that goes deep into the abdominal cavity and a power end installed on the fixing device. There is a long distance between the power end and the execution end. Tube structure, this kind of long tube structure surgical machinery is used in laparoscopic minimally invasive surgery. In minimally invasive surgery for robot operation, this long tube structure surgical machinery is operated by mechanical devices, and surgical machinery is usually only The power end is fixed on the fixture. When in use, due to the effect of gravity, mechanical connection, etc., the surgical instrument will vibrate to a certain extent, which will affect the effect of minimally invasive surgery.

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