Magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery

Abstract

The invention discloses a magnetic anchoring pulmonary nodule positioning device for a thoracoscopic surgery, and belongs to the technical field of medical instruments. A targeted positioning body is placed in a puncture needle tube, a micro-driving body and a pair of arc-shaped magnetic closing layers limit the targeted positioning body, when the puncture needle tube penetrates into lung tissue, the targeted positioning body is pushed outwards to be placed at the target nodule by utilizing the micro-driving body, one pair of positioning flaps rotationally connected to a magnetized elliptic block is overturned outwards under the reset action of torsional elasticity to form a clamping space, and one pair of extending clamping surfaces attract each other to move through magnetic attraction force, so that positioning of the target nodule is completed; two positioning structures do not need to be placed on the target nodule, so that the operation is relatively easy and convenient; and during surgical operation, a magnetic suction rod is clamped through surgical forceps to penetrate into the lung tissue and slightly slides on the surface of the lung tissue, and the surface of the pulmonary membrane is attracted to lift a bulge, namely the position where the target nodule is located, so that the excision operation can be conveniently conducted on the lifted bulge.

Description

technical field [0001] The invention relates to the technical field of medical instruments, 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, 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 and excessive resection of normal lung tissue etc., which in turn affects the curative effect of the operation, increases postoperative complications, is not conducive to the recovery of patients, and increases the possibility of co...

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, conventional methods such as vision, finger palpation, or surgical instrument sliding cannot be used to accurately locate pulmonary nodules during thoracoscopic surgery, which may lead to prolonged operation time and excessive resection of normal lung tissue etc., which in turn affects the curative effect of surgery, increases postoperative complications, is not conducive to the recovery of patients, and increases the possibility of conversion to thoracotomy

[0003] In order to optimize the application of thoracoscopy in pulmonary nodule resection, a series of pulmonary nodule localization techniques have been explored clinically in recent years, such as puncture localization technology, image-mediated localization technology, electromagnetic navigation bronchoscopy localization, etc. The clamping position is displaced or falls off, and the positioning effect is not good, and some need a pair of positioning structures for positioning, so two puncture processes are required, which is not conducive to postoperative recovery for patients

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