Traction magnetic mechanical arm used in laparoscopy

Abstract

The invention discloses a traction magnetic mechanical arm used in laparoscopy, comprising an electromagnet outside the abdominal wall, and also comprising a magnetic mechanical arm inside the abdominal wall and a permanent magnetic mound clip, wherein the magnetic mechanical arm inside the abdominal wall is adaptive to the electromagnet outside the abdominal wall. When in laparoscopy, the magnetic mechanical arm inside the abdominal wall and the permanent magnetic mound clip are arranged in the abdominal cavity through existing poking holes, the magnetic mechanical arm inside the abdominal wall is attracted and fixed by an electromagnet, the permanent mound clip is well clamped on a target tissue, and a sleeve electromagnet in the magnetic mechanical arm inside the abdominal wall is electrified to generate magnetic force to attract and connect the permanent magnetic mound clip; the electromagnet outside the abdominal wall is moved to control the traction direction; and the length of the magnetic mechanical arm inside the abdominal wall is adjusted through control of rotation of a micro-motor to change the traction force so that the existing poking holes of the abdominal wall are reduced, and meanwhile, the traction force and direction can be adjusted conveniently.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a magnetic mechanical arm used for pulling in laparoscopic surgery. Background technique [0002] Minimally invasive surgical technology is an important trend in the development of today's surgical field. Its principle is to achieve the purpose of surgical treatment with a minimally invasive method. At present, laparoscopic device technology has become the preferred surgical method in cholecystectomy and appendectomy. , but using this device generally requires 3-4 poke openings in laparoscopic surgery, respectively placing lighting / camera equipment, traction equipment, and main operating equipment, based on patients' higher requirements for wound cosmetics and doctors' pursuit of reducing abdominal wall poking openings For the purpose of complications, some scholars have suggested that the needle and thread device be used to pass through the target tissue, tie...

AI Technical Summary

Problems solved by technology

[0002] Minimally invasive surgical technology is an important trend in the development of today's surgical field. Its principle is to achieve the purpose of surgical treatment with a minimally invasive method. At present, laparoscopic device technology has become the preferred surgical method in cholecystectomy and appendectomy. , but using this device generally requires 3-4 poke openings in laparoscopic surgery, respectively placing lighting / camera equipment, traction equipment, and main operating equipment, based on patients' higher requirements for wound cosmetics and doctors' pursuit of reducing abdominal wall poking openings For the purpose of complications, some scholars have suggested that the needle and thread device be used to pass through the target tissue, tie a knot and fix it, and then pass it out of the abdominal wall and lift it outside the abdominal wall for traction. However, the traction direction of this device cannot be adjusted, and can only be in one direction. Pull, and still cause damage to the abdominal wall; 2-3mm microporous traction instruments are also used to enter the abdominal cavity through small poke openings, but this method only reduces the trauma and is essentially the same as the traditional method

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