Reducing puncture outfit

Abstract

The invention belongs to the field of medical apparatuses, and particularly relates to a reducing puncture outfit. The reducing puncture outfit is an apparatus for the chest cavity and abdominal cavity endoscope check and the building of chest cavity and abdominal cavity operation working channels in the operation process. The reducing puncture outfit comprises a puncture cone, a puncture cannula, a valve body, a locking fixed cover, a positioning guide cover and a reducing mechanism, wherein the puncture cone comprises a lower cover of a fixed cover, the fixed cover and a puncture cone body; the puncture cannula comprises a sealing ring, and a mounting lug boss is arranged on the upper part of the puncture cannula; the valve body comprises an air injection valve, an air injection switch, a self-adjusting type sealing cap, and an air injection sealing sheet; the positioning guide cover comprises an upper fixed cover, a lower fixed cover and an elastic sealing ring; the reducing mechanism comprises a rotary cover, a shift disc, arc-shaped grooves, and four uniformly distributed slide blocks; the shift disc is arranged in the rotary cover, the four arc-shaped grooves are arranged on the shift disc, the four slide blocks are uniformly arranged in the arc-shaped grooves, one end of each slide block is connected with the interior of the shift disc, and the shift disc is shifted to drive the slide blocks to slide in the arc-shaped grooves, so as to conveniently adjust the slide blocks to form a hole diameter.

Description

technical field [0001] The invention belongs to the field of medical instruments, and in particular relates to a variable-diameter puncture device, which is suitable for establishing thoracic and abdominal surgery working channels during thoracic and laparoscopy examinations and operations. Background technique [0002] Disposable puncture device is an important instrument in laparoscopic surgery. It is a supporting surgical instrument for external thoracic and external laparoscopy. . With the development of imaging technology and camera technology, minimally invasive surgical methods represented by laparoscopic surgery have developed rapidly in recent years, especially in gynecology, general surgery and other intra-abdominal surgery, which is gradually changing from open to intracavitary surgery. minimally invasive surgery. In laparoscopic surgery, 2~5 puncture holes are generally used, one for placing the laparoscope, and the rest for placing surgical instruments. The ou...

AI Technical Summary

Problems solved by technology

In laparoscopic surgery, 2~5 puncture holes are generally used, one for placing the laparoscope, and the rest for placing surgical instruments. The outer diameter of surgical instruments is roughly divided into 5mm, 10mm, 12mm, 15mm, etc. during use. Matching matching inner diameter puncture cannula to avoid pneumoperitoneum leakage and affect the operation

In clinical practice, a surgical operation usually requires multiple specifications of surgical instruments, which are used alternately during the operation. For a fixed puncture position, the puncture cannula is inconvenient to replace. Using a variety of specifications on a puncture cannula Surgical instruments lead to pneumoperitoneum leakage. At present, converters are used clinically to solve this problem. This method is cumbersome. Frequent insertion and removal of converters and puncture cannula prolong operation time, harm patients, and even cause pneumoperitoneum leakage. gas phenomenon

Images