一种肺表面磁锚定装置的动物实验

Objective To verify the feasibility of a self-designed laparoscopic magnetic anchoring device for assisting thoracoscopic wedge resection\. Methods Six healthy Beagle dogs were selected as animal models, and underwent thoracoscopic wedge resection after general anesthesia\. We replaced the pulmonary forceps with a magnetic anchoring device to complete the traction exposure of the lobes, and recorded the operation time of the operation, the amount of intraoperative blood loss, and the safety and feasibility of the magnetic anchoring device\. Results Six Beagle dogs successfully completed a thoracoscopic wedge resection with the aid of a magnetic anchoring device\. During the operation, the magnetic anchoring device can completely replaced the exposure function of the pulmonary forceps, effectively eliminating the " chopstick effect" between the instruments during the uniportal video-assisted thoracoscopic operation\. The magnetic anchoring device provided sufficient traction for the surgery to achieve a clear exposure of the field\. Tissue damage and magnetic anchoring pliers slip did not occur during the operation\. The operation time was(22\. 67 ± 3\. 25) min(range 18-26 min), and the intraoperative blood loss was less than 10 ml\. The experimental animals survived well after surgery\. Conclusion Magnetic anchoring device is safe and effective for thoracoscopic wedge resection, which can eliminate mutual interference between operating instruments and has potential for clinical application\.