Laparoscopic rectal cancer grabbing device and using method thereof

Abstract

The invention relates to a laparoscopic rectal cancer grabbing device and a using method thereof. An cannula is of a cylindrical tubular structure, a push-pull rod with a rectangular section is movably mounted in the cannula, a handle is fixedly mounted at one end of the push-pull rod, a pushing end bin with a semicircular spherical groove-shaped structure is fixedly mounted at the other end of the push-pull rod, a camera is mounted at the outer side end of the pushing end bin; and a limit bin matched with the pushing end bin is fixedly mounted at the end of the cannula, and a positioning grabbing device is arranged on the push-pull rod between the limit bin and the pushing end bin. The special grabbing device special for rectal cancer pathological tissue cannot cause damage to the inner wall of the rectum, during pushing, and the end is in a spherical structure and cannot scratch the tissue of the inner wall of the rectum; and during grabbing operation, thickness of the diseased tissue is deduced from the diameter of the spherical structure, and the grabbing operation in a narrow space is achieved by combining the camera, so that efficiency of the grabbing operation is improved, and the grabbing difficulty is reduced.

Description

technical field [0001] The invention relates to a medical device, in particular to a laparoscopic rectal cancer grasping device and a using method thereof. Background technique [0002] Rectal cancer is a common malignant tumor in the gastrointestinal tract. The early symptoms are not obvious. With the increase of the cancer, symptoms such as changes in bowel habits, blood in the stool, diarrhea, alternating diarrhea and constipation, and local abdominal pain appear. In the late stage, anemia and weight loss are manifested. Wait for systemic symptoms. Its morbidity and mortality are second only to gastric cancer, esophageal cancer and primary liver cancer among digestive system malignant tumors. [0003] In the treatment stage of rectal cancer, surgery is often used for treatment. During the operation, laparoscopic technology is required to remove the tumor mass on the inner wall of the rectum. The traditional method is to use special medical equipment to remove the tumor m...

AI Technical Summary

Problems solved by technology

However, there are certain defects in the use of traditional grabbing devices, which are mainly reflected in: First, the traditional grabbing devices are mostly clamp body structures, and it is difficult to perform grabbing operations on the rectal inner wall with a limited diameter, which is easy to cause Injury to the inner wall of the rectum, during the operation, the leverage principle of forceps in a narrow space is limited by the space, which is not conducive to the implementation of grasping; Grasping operations can be performed in one direction, that is, the direction is to perform grasping operations from the inner end of the rectum to the outer end of the rectum. During the grasping operation in this direction, the tumor tissue remaining at the inner end cannot be completely removed, and the grasping operation often needs to be performed. The next tissue removal operation can only be performed after the extraction device is extended toward the inner end for a certain length. In specific clinical operations, the direction and production direction of some tumor tissues are specific, and the grasping operation must be performed at a specific position during processing. Then the traditional The overall movement space of the operation method is relatively large, and accurate positioning and two-way fixed-point operation cannot be implemented, which increases the difficulty of the operation; thirdly, even if the end of the traditional grabbing device is specially treated, it cannot However, there is still a risk of damage to the inner wall of the rectum. The reason is that there is a stable limit support device during the external operation, and the lack of this device may easily cause the risk of damage to the inner wall of the rectum due to misuse.

Images