Needle-shaped bile duct incision knife under laparoscope

Abstract

A needle-shaped bile duct incision knife under the laparoscope is disclosed in the invention, belongs to the field of medical instruments, and comprises a grip. A first groove is formed in the position, close to the middle, of the upper end of the grip, a sliding groove is formed in the position, close to the middle, of the surface of the upper end of the first groove, and a handle is movably arranged in the sliding groove; and a limiting mechanism is arranged at the position, close to one side of the handle, of the bottom end in the first groove, a connecting ring is arranged at the upper end of the handle, a rubber plug is arranged at the position, close to the top, between the inner side walls of the connecting ring, an adjusting mechanism is arranged at one end of the handle, and a binding post is arranged at the position, close to the middle, of the right side of the grip. A second groove is formed in the position, located below the sliding groove, in the grip, and a wire is arranged in the second groove. Before laparoscopic common bile duct incision, common bile duct puncture can be carried out, bile is extracted to confirm the bile duct, and then common bile duct incision is carried out by the needle head in an electric incision mode, so that the injury of the bile duct is minimized.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a laparoscopic needle-shaped bile duct incision knife. Background technique [0002] Laparoscopic common bile duct incision and exploration surgery is very mature. During the operation, the common bile duct needs to be explored, and then the anterior wall of the common bile duct should be incised. Since suture reconstruction is required later, it is required to minimize the physical damage to the bile duct wall tissue and Thermal injury, traditional treatment method: in the past, after the common bile duct was found and the suture was drawn, it was first confirmed by puncturing with a thin needle barrel, and then incised with a sharp knife, which basically did not cause excessive damage to the bile duct wall. During laparoscopic surgery, there is a lack of effective puncture confirmation methods after anatomical exposure of the posterior common bile duct, especially for patient...

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Problems solved by technology

[0002] Laparoscopic common bile duct incision and exploration is very mature. During the operation, the common bile duct needs to be explored, and then the anterior wall of the common bile duct should be incised. Since suture reconstruction is required later, it is required to minimize physical damage to the bile duct wall tissue and Thermal injury, traditional treatment method: in the past, after the common bile duct was found and the suture was drawn, it was first confirmed by puncturing with a thin needle barrel, and then incised with a sharp knife, which basically did not cause excessive damage to the bile duct wall. During laparoscopic surgery, there is a lack of effective puncture confirmation methods after anatomical exposure of the posterior common bile duct, especially for patients with repeated inflammation and adhesions, it is difficult to judge whether it is a bile duct; Common bile duct incision is performed in cutting mode, but the contact area is relatively large, and the incision is made from the surface to the deep part. There is a deviation in direction, which may lead to the possibility of cutting into the wall of the bile duct, or too deep, resulting in the possibility of electrical burns to the posterior wall of the bile duct. There is a kind of abdominal cavity Under the microscope, the bile duct incision knife enters the abdominal cavity and extends the pointed blade to physically cut the bile duct wall. However, due to the lack of suture traction and suspension during laparotomy, it is difficult for the pointed blade to cut the bile duct wall, and it is easy to use too much force. Injury to the posterior wall of the common bile duct

[0003] After retrieval, Chinese Patent No. CN202110035045.2 discloses a laparoscopic bile duct puncture diagnostic electrocoagulation cutter, which lacks an effective puncture confirmation method, and is easy to damage the posterior wall of the common bile duct during use. Therefore, we laparoscopic needle cholangiotomy

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