Guide tube special for laparoscopic sleeve gastrectomy

Abstract

The invention discloses a guide tube special for laparoscopic sleeve gastrectomy. The guide tube comprises a guide tube body, a guide head, an attraction joint, a crescent passage, a round passage, six gas exhaust holes and five liquid suction holes, an inner cavity of the guide tube body is divided into the round passage penetrating tube length and the crescent passage penetrating the tube length, the liquid suction holes communicated with the round passage are formed in the side wall of the guide tube body, and the round passage is used for discharging liquid in the digestive tract in the process of operation, the gas exhaust holes communicated with the crescent passage are formed in the side wall of the guide tube, and the crescent passage is used for exhausting gas in the digestive tract in the process of operation. The guide head variable in diameter is arranged at the front end of the guide tube, so that resistance when the guide tube is inserted into pylorus can be reduced, andguiding can be realized; the rear end of the guide tube is connected with the attraction joint in the round passage; scale values are marked on the outer wall of the guide tube in full length, so thatconvenience is brought to acquiring insertion distance of the guide tube in the digestive tract; diameter of a liquid passage and that of the tube body are unlimited, so that convenience is brought to adjusting liquid suction pressure in the digestive tract.

Description

technical field [0001] The invention relates to a medical device, which is a special guide tube for laparoscopic sleeve gastrectomy. Background technique [0002] Laparoscopic sleeve gastrectomy (LSG) is mainly used for weight loss and treatment of type 2 diabetes. The method of laparoscopic sleeve gastrectomy is to use laparoscope to preserve the gastric antrum 2-6cm above the pylorus along the direction of the greater curvature of the stomach, resect most of the stomach along the long axis of the stomach, and remove all the fundus, so that the remaining stomach is "Banana shape" makes the stomach form a small gastric pouch of about 150cc, which can hold about 4-5 ounces of food. The principle of laparoscopic sleeve gastrectomy is to reduce stomach volume and reduce hormone secretion that stimulates hunger. So as to achieve the purpose of weight loss. The advantage of laparoscopic sleeve gastrectomy is that it does not change the physiological state of the gastrointestina...

AI Technical Summary

Problems solved by technology

[0004] Laparoscopic sleeve gastrectomy requires the use of a guide tube. The diameter of the guide head at the front end of the existing guide tube is the same as that of the guide tube body, which results in greater resistance when the guide tube is inserted into the pylorus and is easy to damage the pylorus.

The material of the guide tube is too hard, so it is inconvenient to fix it at a specific position as a reference line for cutting in laparoscopic sleeve gastrectomy

During the operation, the liquid in the digestive tract is inconvenient to be discharged in time

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