Single-hole multi-channel puncture outfit with circulating smoke exhaust function for pneumoperitoneum machine

Abstract

The single-hole multi-channel puncture outfit with the circulating smoke exhaust function for the pneumoperitoneum machine is characterized in that an air inlet inner pipe is arranged on the inner side of at least one instrument channel structure in a sleeving mode, one end of the air inlet inner pipe extends into a channel pipe assembly, and the other end of the air inlet inner pipe communicates with a channel opening of the instrument channel structure and is provided with an internal air inlet; an external air inlet and a smoke outlet are formed in the other end of the instrument channel structure; the inner side of the air inlet inner pipe forms an instrument circulating air inlet channel for an instrument to enter and exit the channel pipe assembly and carbon dioxide to enter the channel pipe assembly, and the radial size of the instrument circulating air inlet channel is gradually reduced in the carbon dioxide entering direction; a smoke exhaust channel for discharging carbon dioxide out of the channel pipe assembly is formed between the air inlet inner pipe and the instrument channel structure, and the ring width of the smoke exhaust channel is gradually decreased in the carbon dioxide discharging direction. Smoke in the channel pipe assembly can be scattered more effectively, clearer pictures are provided for the endoscope lens, the airflow speed is high, and the smoke driving and discharging effects are good.

Description

technical field [0001] The invention belongs to the technical field of minimally invasive surgery, and in particular relates to a single-hole and multi-channel puncture device with circular smoke exhaust function for an insufflation machine. Background technique [0002] The information disclosed in this Background section is only intended to enhance the understanding of the general background of the present invention, and should not be considered as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] Minimally invasive laparoscopic surgery is a newly developed minimally invasive method, and the minimally invasive surgical treatment mode is an inevitable trend in the development of future surgical methods. With the rapid development of industrial manufacturing technology, many open operations in the past have now been replaced by minimally invasive surgery. [0004] Especially...

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Problems solved by technology

[0004] Especially for the insufflation machine products used in minimally invasive laparoscopic surgery and the matching single-hole multi-channel puncture device (hereinafter referred to as single-hole multi-channel), the role of single-hole multi-channel is particularly important, single-hole multi-channel is Laparoscopic surgery is a commonly used method, especially transanal endoscopic rectal surgery is a type of surgery that uses a minimally invasive method for local resection of rectal tumors. The main method is to insert one end of a single-hole multi-channel device into the anus. Insert special instruments into the instrument channel of the channel. Under the monitoring and guidance of the high-tech display screen, the surgeon manipulates the instrument outside the surgical device to perform operations such as exploration, electrocoagulation, hemostasis, tissue separation and incision, and suture on the diseased tissue. During the operation, a clear surgical field of view is the key to the whole operation. However, in the actual operation, due to the high-frequency electric knife cutting tissue and other operations, a certain amount of surgical smoke will be generated, which will affect and interfere with the surgical field of view. This affects the safety of the operation; at the same time, the laparoscopic space generally established in this type of surgery is relatively small, and the pneumoperitoneum will be unstable during flushing, suction, and instrument insertion, and the pneumoperitoneum cannot be adjusted in time for the laparoscopic space. Insufficient air causes the problem of collapse, which leads to the instability of the surgical space in the cavity, which is sometimes large and sometimes small, resulting in a phenomenon similar to tides, which seriously affects the actual surgical effect

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