Liver retractor for peritoneoscope stomach operation

Abstract

The present invention relates to a liver opening device used in a laparoscopic gastric operation. The present invention is characterized in that the liver open device includes an elastic lining ring (1), a soft sleeve (2) and an elastic tongue ring (4). The circumstance of the elastic lining ring (1) is respectively connected with the soft sleeve (2) and the elastic tongue ring (4). The other endof the soft sleeve (2) is under the open status. The liver opening device used for the laparoscopic gastric operation provided by the present invention has the advantages of simple and reasonable structure, convenient use and low cost. The device can rapidly seal the incision, reconstruct the pneumoperitoneum, fully open the lever under the pneumoperitoneum status and effectively expose small bend visual fields. A large outer-arranged surgical instrument can be arranged through the device and the internal and external linkages in the peritoneal under the pneumoperitoneum status can be done tofinish the gastric operation.

Description

technical field [0001] The invention relates to auxiliary equipment for medical operations, in particular to a liver retractor for laparoscopic gastric operations. Background technique [0002] Laparoscopic gastric surgery has been gradually carried out at home and abroad due to the overall small trauma and quick recovery. However, the human stomach is located behind the liver. From the cardia, gastric body, and pylorus, about 50% of the gastric tissue on the side of the lesser curvature of the stomach is covered by the liver. cover, cover. In traditional laparotomy for gastric surgery, the liver must be continuously pulled by an assistant with a special retractor to fully expose the lesser curvature of the stomach before the surgery can be completed. However, during laparoscopic gastric surgery, the liver retractor cannot enter the abdominal cavity. The exposure of the lesser curvature of the stomach is to poke a hole through the abdominal wall with forceps or a retractabl...

AI Technical Summary

Problems solved by technology

However, there are obvious defects in this exposure method: ① forceps or baffles are easy to damage the liver; ② assistants must continue to occupy a poking hole to pick the liver, and cannot free up their hands to effectively cooperate with the surgeon in the operation; ③ the abdominal wall is poked The size of the hole is limited, the size and shape of the forceps and baffles entering the abdominal cavity are not ideal, and the satisfactory exposure effect cannot be achieved

At present, due to the difficulty of exposing the surgical field of view, especially the exposure of the lesser curvature of the stomach, there is no ideal method so far, which seriously restricts the popularization of laparoscopic gastric surgery.

[0003] In addition, after gastric tumor resection is completed by poking a hole under laparoscopy, an incision is made to take out the specimen, and the incision is used to complete the reconstruction of the digestive tract, which is called laparoscopic-assisted gastrectomy, which is currently a commonly used method at home and abroad. There are also some urgent problems to be solved, that is, how to easily complete the reconstruction of the digestive tract under laparoscopy

Taking laparoscopic radical gastrectomy as an example, laparoscopic digestive tract reconstruction, especially after proximal gastrectomy and total gastrectomy, is very difficult

Since surgical instruments can only enter through a few small holes with a diameter of 0.5 cm or 1 cm on the abdominal wall, special instruments for laparoscopic surgery must be used. Prolonged time, reduced safety, a substantial increase in the cost of surgical instruments, and prolonged abdominal incisions severely restrict the widespread use of laparoscopic gastrointestinal surgery

The resected specimen in laparoscopic gastric cancer surgery must be taken out through an incision on the abdominal wall, usually a midline incision on the upper abdomen. Depending on the size of the tumor, the incision is about 3 to 5 cm long; laparoscopic distal gastrectomy can be completed basically without enlarging the incision Gastrointestinal anastomosis, however, the reconstruction of the digestive tract after laparoscopic proximal gastrectomy and total gastrectomy is relatively complicated, and large-volume instruments such as tubular staplers for laparotomy must be used, so the incision must be extended to 8-10 cm accordingly to complete

Even so, the incision of 8-10 cm is still too small, the surgical field of view is not well exposed, and the operation is still relatively difficult

Furthermore, if the pneumoperitoneum with a pressure of about 12 mm Hg (0.09 Pa) is to be established after the opening of the abdominal wall to continue the operation, unless the incision is temporarily sutured. Finally, the whole operation time and the patient's anesthesia time are prolonged, and the damage to the incision site is also increased.

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