Needling instrument for lung nodule puncture positioning

Abstract

The invention relates to a needling instrument for lung nodule puncture positioning. The needling instrument includes a hollow outer pipe needle, an inner core needle capable of penetrating into the outer pipe needle in a matched mode, a positioning guide wire with the front end provided with at least one V-shaped barb and a hollow guide needle. The front end of the guide needle is provided with ablade head, the front of the guide needle is bent to form a bent section, the guide needle can deform to penetrate into the outer pipe needle, the bent section at the front end of the guide needle can penetrate out from the front end of the outer pipe needle, and the positioning guide wire can penetrate into the guide needle and penetrate out from the front end of the guide needle. In this way, when the position of the lung nodule is in the range covered by the shoulder blade or the chest tissue of a patient is not suitable for puncture operation, and the lung nodule in an area below the mediastinal surface of the lung lobe, according to the needling instrument for lung nodule puncture positioning, the outer pipe needle does not need to be directly inserted in the position of the lung nodule, and the positioning of the lung nodule can be achieved. Therefore, the operability of the needling instrument for lung nodule puncture positioning is greatly improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a needle used for puncture and positioning of pulmonary nodules. Background technique [0002] Pulmonary nodules refer to round-shaped lesions with a diameter of less than 3 cm in the lung. A considerable number of pulmonary nodules cannot rule out the possibility of early malignant tumors. Thoracoscopic surgery is widely used in the resection of pulmonary nodules, and rapid and accurate positioning is the key to the success of the operation. How to accurately locate pulmonary nodules, especially ground-glass nodules (GGN) and subcentimeter nodules (≤1cm), before resection is crucial. [0003] Authorized announcement number is CN204600615U (application number is 201420853632.8) Chinese utility model patent "Lung nodule positioning puncture needle set", wherein the disclosed pulmonary nodule positioning puncture needle set includes a hollow outer tube needle, inner co...

AI Technical Summary

Problems solved by technology

[0005] The first technical problem to be solved by the present invention is to provide a needle for puncture and positioning of pulmonary nodules that can solve the problem of effective positioning of pulmonary nodules when it cannot be directly inserted into the lesion.

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