Work sleeve provided with puncture channel and used for single port peritoneoscope

Abstract

A working casing pipe for minimally invasive surgery comprises a sheath (2), a silicone casing pipe (6), a multi-channel cap (9), and a multi-channel leather packing (11). The multi-channel cap (9) and the multi-channel leather packing (11) can be used for letting multiple apparatus channels (8) pass through. Openings used for letting carbon dioxide channels (7) pass through are disposed on the multi-channel cap (9) and the multi-channel leather packing (11). Multiple tracks (10) are disposed on the multi-channel cap to let the apparatus channels (8) move left and right. Further, an air injection hole (14) or a valve is disposed in the multi-channel cap (9) to fill gas into a gasbag (15) at the lower end of the silicone casing pipe (6). The multi-channel leather packing (11) is corrugation-shaped, and the cross section may be V or u-shaped. The sheath (2) and the silicone casing pipe (6) are jogged together to form the middle part with mixed hard and soft materials, of the working casing pipe. A penetrating channel (5) is disposed at the tail of the sheath (2) to let a penetrating knife pass through, and an angle is formed between the tail of the sheath (2) and the middle part of the sheath (2). The working casing pipe provides the possibility of direct penetration, enough support force and large operating space, and provides the operation flexibility, an anti-gas leakage function and an anti-separation function, thereby removing the restriction of the existing working casing pipe on types and methods of the minimally invasive surgery and meeting requirements in complicated minimally invasive surgery.

Description

technical field [0001] The invention relates to a minimally invasive surgical device, in particular to a working sleeve for a single-hole laparoscope, in particular to a working sleeve with a puncture channel for a single-hole laparoscope. Background technique [0002] For abdominal surgical diseases, open surgical resection was usually used in the past at home and abroad, but open surgical resection has a large trauma, a lot of bleeding, great pain for the patient, and slow recovery. Minimally invasive surgery has small wounds, less bleeding, less pain for patients, and relatively quick recovery. Therefore, with the development of medical technology, open surgical resection is gradually replaced by minimally invasive surgery. Laparoscopic technology uses puncture or small incision in the patient's abdominal wall, inserts laparoscopic instruments from the puncture working cannula, fills the abdominal cavity or extraperitoneal cavity with gas, and completes the resection or r...

AI Technical Summary

Problems solved by technology

However, the single-hole puncture cannula can only be placed after surgical incision of each layer of the abdominal wall tissue. The incision strength of the fully flexible trocar is poor. For example, the incision is 3.5 cm, and the incision channel of the fully flexible trocar is less than 3 cm. Operating space; the rigid trocar can support the 3 cm incision to 3,5 cm, increasing the operating space, but the rigid tubular shape makes the operation extremely inconvenient

The instruments that enter the abdominal cavity from the single-hole puncture cannula are limited by the operable space. When the doctor operates with both hands at the same time, the movement and operation of the instruments are likely to interfere with each other and hinder each other, which is very inconvenient. And the type of operation is very limited, and it is impossible to complete more complicated operations

For the convenience of two-handed operation, it is necessary to increase the aperture of the circular working sleeve as much as possible, but the increase of the aperture will correspondingly increase the damage to the abdomen

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