A laparoscopic rectal cancer grasping device and its application method

Abstract

The invention relates to a laparoscopic rectal cancer grasping device and its use method. The insertion tube is a cylindrical tubular structure, and a push-pull rod with a rectangular section is movably installed in the insertion tube. One end of the push-pull rod is fixedly equipped with a handle, and the push-pull rod The other end of the tube is fixedly installed with a semi-spherical groove-shaped propulsion head compartment, a camera is installed on the outer end of the propulsion end compartment, and a limit compartment that matches the propulsion end compartment is fixedly installed at the end of the insertion tube , a positioning and grasping device is provided on the push-pull rod located between the limit chamber and the interior of the push-in end chamber; a special grasping device for rectal cancer lesion tissue is provided, which will not cause damage to the inner wall of the rectum During the process, the end presents a spherical structure, which will not scratch the inner wall tissue of the rectum. At the same time, when the grasping operation is in progress, the thickness of the lesion tissue can be inferred from the diameter of the spherical structure, and the grasping operation in a small space can be achieved by combining the camera. The efficiency of the grabbing operation is improved and the difficulty of grabbing 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.

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