Breath positioning device for CT-guided percutaneous lung biopsy and application method thereof

Abstract

The invention discloses a breath positioning device for CT-guided percutaneous lung biopsy and an application method thereof. The positioning device comprises a support part and a human body identification part, the support part comprises a triangular support which is provided with a fixing sliding rod, and a laser lamp fixing support for fixing a laser lamp is slidingly arranged on the fixing sliding rod; the human body identification part comprises a supporting plate, two fixing clamps are arranged on the lower portion of the supporting plate, suction cups are arranged at the four corners ofthe supporting plate, and a transparent plate with a scale is arranged on the supporting plate; during use, the height of the laser lamp is adjusted, laser points fall on the transparent plate, the puncture breath control condition is determined according to the positions of the laser points on the transparent plate during breath, and it is guaranteed that a biopsy needle is inserted to a presetlevel; the scanning radiation dose and the complication risk caused by multi-time puncture are reduced, the surgical failure risks are greatly reduced, and the puncture success rate is increased; thedevice is low in cost and operation difficulty and has high clinical value and social and economic benefits.

Description

technical field [0001] The invention relates to a medical auxiliary device, in particular to a CT-guided percutaneous lung puncture biopsy breathing positioning device and a use method thereof. Background technique [0002] With the development of industry, the environmental pollution is becoming more and more serious. At the same time, the population is aging, and respiratory diseases have become the main factors affecting people's health. In particular, the incidence of lung cancer is increasing year by year. Diagnosis is extremely critical; however, some lesions cannot be accurately diagnosed from imaging, sputum culture, and bronchoscopy alone, and require histopathological diagnosis. The traditional method is through open chest biopsy or B-ultrasound-guided percutaneous lung biopsy. Although the former The tissue samples obtained are large, but the trauma is large and the cost is high; the latter can only be used for lesions located under the pleura, and is suitable for...

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Problems solved by technology

[0002] With the development of industry, the environmental pollution is becoming more and more serious. At the same time, the population is aging, and respiratory diseases have become the main factors affecting people's health. In particular, the incidence of lung cancer is increasing year by year. Diagnosis is extremely critical; however, some lesions cannot be accurately diagnosed from imaging, sputum culture, and bronchoscopy alone, and require histopathological diagnosis. The traditional method is through open chest biopsy or B-ultrasound-guided percutaneous lung biopsy. Although the former The tissue samples obtained are large, but the trauma is large and the cost is high; the latter can only be used for lesions located under the pleura, and is suitable for a small number of patients. CT-guided needle biopsy is a minimally invasive biopsy technique that has been rapidly developed and promoted in recent years. This technology is quite mature at home and abroad

[0003] The qualitative diagnosis of pulmonary nodular lesions located in the peripulmonary area, close to the pleura or chest wall is difficult, and CT-guided percutaneous lung biopsy can be used for clinical qualitative diagnosis of the tumor, formulation of treatment plan and prognosis; Patients undergo routine enhanced CT scans, preoperative detection, coagulation time and platelet count, etc.; strictly screen indications and contraindications, and make a puncture decision; preoperative and intraoperative positioning of CT-guided biopsy is the key to the success of the operation. Training patients to hold their breath and positioning on the body surface. A small number of provincial tertiary hospitals in China use external auxiliary system laser positioning imported from abroad. This equipment is expensive and difficult to promote. Two scans during the operation are used to evaluate whether the breathing is consistent before performing the operation. , and the needle is inserted in two steps to increase the accuracy of needle insertion and the success rate of biopsy. In the technical operation, it is mentioned whether the two breaths are consistent and two scans are performed. However, in actual work, it is often difficult to judge the chest rise and fall with the naked eye. Whether the breath is consistent before and after, the patient's own feeling is also difficult to control, especially in a tense state, often encounter poor breathing control in clinical work, resulting in the displacement of lung lesions, need to reposition repeat scanning and puncture again, greatly increasing the complications of pneumothorax In clinical work, the most direct reason for puncture failure is that the patient's breathing is not well coordinated. When the lesion is less than 3cm, it is easily affected by breathing, especially the lower lobes of the two lungs are shifted up and down due to the participation of the diaphragm in breathing. The scope is large, so the two lung lesions are most affected by breathing; at present, the control of puncture breathing in China is still in the subjective judgment stage, and there is no objective evaluation standard. It is necessary to design and develop a method that can accurately judge the degree of breathing, accurate positioning, low cost, and easy to promote. A popular device that facilitates the positioning of needle biopsy under CT guidance to fill the current technical gap

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