Magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery

Abstract

The invention provides a magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery. The device comprises: two target magnets, which are used for clamping a target nodule on twosides of the target nodule; two coaxial puncture needles, which are of hollow structures, and the hollow sizes of the two coaxial puncture needles are larger than the external sizes of the two targetmagnets respectively so as allow the two target magnets to penetrate through the two coaxial puncture needles respectively; a positioning plate, which is provided with a plurality of holes, wherein two coaxial puncture needles penetrate into two of the holes to realize preliminary positioning of a target nodule; and an anchoring magnet, which is used for being attracted with the target magnets onthe lung surface through magnetic force, and a positioning range is determined according to the magnetic force. According to the invention, nodule lesions are positioned through magnetic attraction force. The device is suitable for pulmonary lobe excision under a thoracoscope. Meanwhile, the probability that a positioning marker falls off, shifts and moves is lowered, stimulation of a foreign matter to the pleura can be reduced, corresponding discomfort and complications are relieved, the marker is prevented from making direct contact with the nodule, pathological judgment in an operation is prevented from being affected, and the requirements of more patients for high-precision thoracoscopic surgery are met.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a magnetically anchored pulmonary nodule positioning device for thoracoscopic surgery. Background technique [0002] As the main technical method for the diagnosis and treatment of pulmonary nodules, thoracoscopic technology has the advantages of less trauma, faster recovery, and fewer surgical complications, and is widely used in clinical practice. However, for pulmonary nodules with a subpleural depth of more than 5 mm and a diameter of less than 10 mm, especially pure ground-glass nodules, conventional methods such as vision, finger palpation, or surgical instrument sliding cannot be accurately located during thoracoscopic surgery, which may lead to prolonged operation time. Prolonged, excessive resection of normal lung tissue, etc., which in turn affect the curative effect of surgery, increase postoperative complications, are not conducive to the recovery of patients,...

AI Technical Summary

Problems solved by technology

However, for pulmonary nodules with a subpleural depth of more than 5 mm and a diameter of less than 10 mm, especially pure ground-glass nodules, conventional methods such as vision, finger palpation, or surgical instrument sliding cannot be accurately located during thoracoscopic surgery, which may lead to prolonged operation time. Prolonged, excessive resection of normal lung tissue, etc., which in turn affect the curative effect of surgery, increase postoperative complications, are not conducive to the recovery of patients, and increase the possibility of conversion to thoracotomy, which deviates from the fundamental starting point of thoracoscopic surgery

In order to optimize the application of thoracoscopy in pulmonary nodule resection, a series of pulmonary nodule localization techniques have been clinically explored in recent years, such as puncture localization technology, image-mediated localization technology, electromagnetic navigation bronchoscopy localization, etc. Displacement or falling off, unintuitive, expensive defect

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