A magnetically anchored pulmonary nodule localization device for thoracoscopic surgery

Abstract

A magnetically anchored pulmonary nodule positioning device for thoracoscopic surgery, comprising: two target magnets, used to clamp the target nodule on both sides of the target nodule; two coaxial puncture needles, both of which are hollow, The hollow dimensions are respectively larger than the outer dimensions of the two target magnets, so that the two target magnets can pass through; the positioning plate has a plurality of holes, and two coaxial puncture needles penetrate the two holes to realize the target nodule. Preliminary positioning; the anchor magnet is used to attract the target magnet on the surface of the lung through magnetic force, and the positioning range is confirmed according to the magnitude of the magnetic force. The invention completes the positioning of the nodular focus through magnetic attraction. Suitable for thoracoscopic lobectomy. At the same time, the probability of falling off, shifting, and wandering of positioning markers is reduced, and the stimulation of foreign bodies to the pleura can be reduced, and the corresponding discomfort and complications can be reduced. At the same time, direct contact between markers and nodules can be avoided to prevent affecting pathology during surgery. Judgment to meet the needs of more patients for high-precision thoracoscopic surgery.

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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