Four-dimensional percutaneous biopsy puncture instrument

Abstract

The invention discloses a four-dimensional percutaneous biopsy puncturing instrument which comprises a main puncture needle and an auxiliary puncture needle, wherein a main puncture needle core is arranged inside the main puncture needle; a navigator is mounted at the end part of the main puncture needle core, and is connected with a displayer; the auxiliary puncture needle comprises an end part, a needle tube part, an elastic bending part and a needle tip part. Through the adoption of the technical scheme, an MSCT four-dimensional positioning data is adopted as a basis, three angular velocity sensors and one displacement sensor are used for fully reacting the four-dimensional spatial positions of the puncture needles through the data navigation, the spatial positions of the puncture needles can be displayed in a real-time manner, the puncture path and the needle inserting angle can be adjusted at any time, blood vessels and other vital organs can be effectively avoided, and the objective can be accurately punctured. A clinical experiment proves that the puncture accuracy rate is 99%, the complication occurrence rate is 15%, and the radiation dosage is reduced by 80%.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a four-dimensional percutaneous biopsy puncture instrument, which is suitable for various puncture biopsies, especially for lung puncture biopsies guided by MSCT. Background technique [0002] CT-guided percutaneous needle biopsy (PNB) of the lung is simple and minimally invasive, and is one of the important methods for the diagnosis and differential diagnosis of lung lesions. The consistency of the corresponding position on the body surface and the puncture path during puncture is the principle of puncture path consistency. However, the traditional puncture needle has no angle measurement function, and cannot display the puncture angle and depth in real time. During puncture, the consistency of the puncture path and the four-dimensional data provided by CT cannot be achieved. The smaller the lesion and the deeper the location, the greater the difficulty of puncture. The poorer th...

AI Technical Summary

Problems solved by technology

However, the traditional puncture needle has no angle measurement function, and cannot display the puncture angle and depth in real time. During puncture, the consistency of the puncture path and the four-dimensional data provided by CT cannot be achieved. The smaller the lesion and the deeper the location, the greater the difficulty of puncture. The poorer the puncture accuracy, the more puncture times, the longer the needle retention time in the lung, and the higher the incidence of pneumothorax or bleeding

When puncturing with a traditional puncture needle, the puncture path is often selected based on the operator's experience, and the puncture is performed blindly. The needle insertion angle is not accurate, the error is large, and the puncture success rate is low. Irregularity, more complications, and higher radiation doses to patients

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