A circular stapler with an airtight mechanism

Abstract

The invention discloses an annular stapler with an airtight mechanism, and relates to the technical field of stapler structures. The main points of the technical solution include a combined end ring and a sliding ring. The bottom end of the combined end ring is provided with a lower end tube. The inner side of the seal ring end is provided with an extension tube, and a seal rubber ring is arranged directly below the sliding ring. The connection between the lower end tube and the seal ring end is adhesively connected, and the extension tube runs through the seal ring. The inside of the end, and a sliding structure is formed between the extension end pipe and the sealing ring end, the bottom end of the extension end pipe is connected with a sleeved long pipe, and a communication structure is formed between the extension end pipe and the sleeved long pipe, the sleeve An anti-slip groove is provided on the outer surface of the long fitting pipe, and the anti-slip groove is embedded in the outer surface of the long fitting pipe. Through the single flow structure, this structure reduces the backflow caused by the connection of gas transmission, and at the same time plays the role of closing the connection when it is not in use, further improving the safety during use.

Description

technical field [0001] The invention relates to the technical field of stapler structure, in particular to an annular stapler with an airtight mechanism. Background technique [0002] The endoscopic cutting stapler may include an end effector movable or articulated relative to the elongated shaft assembly. End effectors are typically configured to hold tissue to be resected between clamping devices, wherein the clamping devices typically include structures configured to receive a staple cartridge therein. The part of the handle used for operation is configured to control the closing of the clamping device, as well as control and push the blade to cut and push the staples for suturing. The main principle is straightforward, that is, clamping, cutting and fixing with staples. How to realize the drive is the main development direction of improvement. Laparoscope is a kind of endoscope with gas as the perspective medium. The whole system is composed of insufflation machine, ins...

AI Technical Summary

Problems solved by technology

The development of electronic technology makes the operation of the insufflation machine more convenient, but if the safe operation of the circular stapler is ignored, it will bring danger to the surgical patient, and the open stapler does not have gas-tight performance

[0003] After searching, the Chinese patent discloses an annular stapler with an airtight mechanism (publication number CN201912155U). This patented technology has a gas sealing effect regardless of whether the sealing ring is static or dynamic in the cavity. The sealing performance is in line with the conditions for establishing an insufflation, but there are still problems such as the inability to prevent the reverse flow of gas, the connection state is not convenient for gas control, the whole is an integrated structure, and it is not easy to clean after a long time of use. Therefore, those skilled in the art provide A circular stapler with an airtight mechanism is proposed to solve the problems raised in the above-mentioned background technology

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