Pulmonary nodule positioning puncture needle

Abstract

The invention discloses a pulmonary nodule positioning puncture needle, relates to the technical field of medical puncture positioning instruments, and aims to solve the problems that the depth of a focus is judged through color block distribution on a positioning line, the judgment precision is low, hands are not easy to master, and a positioning mark moves. According to the technical scheme, at least one set of markers are distributed on a positioning line in the axial direction of the positioning line, each marker comprises a plurality of barb sets distributed in the axial direction of the positioning line, each barb set comprises barbs of different numbers, and openings of the barbs face the direction away from an anchoring positioning pin. In the same group of markers, the number of barbs contained in the barb groups in the direction far away from the anchoring positioning needle forms an arithmetic progression, and the first barbs, close to the anchoring positioning needle, in each barb group are uniformly distributed on the positioning line. The depth of the focus can be judged by simply counting the number of the barbs, the operation is fast, and the accuracy is guaranteed due to the anchoring effect of the barbs on the positioning line.

Description

technical field [0001] The invention relates to the technical field of medical puncture positioning instruments, in particular to a lung nodule positioning puncture needle. Background technique [0002] Regarding the diagnosis and treatment of small pulmonary nodules, since the mid-1990s, domestic and foreign literature have successively reported a variety of preoperative and / or intraoperative lesion localization methods, such as injection of methylene blue, iodized oil, and intraoperative application of ultrasound. However, these methods have their disadvantages: injection of methylene blue into the lung parenchyma around the nodules may cause dye staining in the pleura and the pleural cavity, making it difficult for video-assisted thoracoscopic (VATS) operators to identify specific lesions location; preoperative CT-guided injection of iodized oil and other contrast agent positioning method also has the disadvantage of contrast agent diffusion, and requires real-time CT exa...

AI Technical Summary

Problems solved by technology

[0002] Regarding the diagnosis and treatment of small pulmonary nodules, since the mid-1990s, domestic and foreign literature have successively reported a variety of preoperative and / or intraoperative lesion localization methods, such as injection of methylene blue, iodized oil, and intraoperative application of ultrasound. However, these methods have their disadvantages: injection of methylene blue into the lung parenchyma around the nodules may cause dye staining in the pleura and the pleural cavity, making it difficult for video-assisted thoracoscopic (VATS) operators to identify specific lesions location; preoperative CT-guided injection of iodized oil and other contrast agent positioning method also has the disadvantage of contrast agent diffusion, and requires real-time CT examination equipment in the operating room, the process is relatively cumbersome; ultrasound positioning, due to its relatively low resolution, It is difficult to observe sub-centimeter nodules well, especially the pulmonary ground-glass opacity (GGO) lesions. At the same time, intraoperative ultrasound has high requirements on the level of the operator, and professionally trained personnel are required to operate, and ultrasound positioning needs to be checked Patients with complete lung collapse can be well positioned, and patients with complete lung collapse usually suffer from poor postoperative recovery. These factors limit the application of ultrasound positioning

However, the use of color to indicate the depth of the lesion increases the obstacles to the work of judging the depth of the lesion for operators who are not familiar with the specific distribution position of the color.

Secondly, in order to improve the positioning accuracy, it is necessary to increase the number of color areas on the positioning line, which puts forward higher requirements for the operator's familiarity with the color distribution; but if the number of colors on the positioning line is reduced, the positioning will be reduced. precision

Images