Bendable biopsy needle and biopsy system

Abstract

The invention provides a bendable biopsy and a biopsy system. The bendable biopsy needle comprises a sheath, a needle body and a traction part, wherein a bendable section is arranged at a far end of the sheath, a far end of the traction part is connected with the bendable section, the traction part moves in the axial direction of the sheath to drive the bendable section to bend, the needle body ismovably mounted in the sheath in a penetrating manner, a far end of the needle body is a hollow structure, the far end of the sheath can be bended at different degrees by adjusting the bendable section at the far end of the sheath, so that the far end of the sheath can smoothly enter tiny and bent human cavities, and the far end of the needle body can enter these tiny and bent human cavities along the far end of the sheath to obtain biopsy tissue. Besides, the bending following section at the far end of the needle body is provided with a bending orientation structure, so that the bending following section can bend in the same direction along with the bendable section, the side where the needle point is located and the side, bending under the drive of the traction part, of the bendable section are located on the same side relative to the axis of the needle body, and the needle point can be prevented from piercing the inner wall of the sheath.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an adjustable bend biopsy needle and a biopsy system. Background technique [0002] Endoscopes such as bronchoscopes, gastroscopes, and colonoscopes can visually observe lesions in the lungs, intestines and stomach, and other organs. Endoscopy is currently a commonly used clinical inspection method. In the process of endoscopic examination, doctors often use biopsy needles, referred to as biopsy needles, to perform biopsy: the biopsy needle reaches the patient's body through the working channel of the endoscope, and then is taken out of the patient's body through biopsy needle puncture, suction, etc. A certain amount of diseased tissue is subjected to pathological examination to make a definite histopathological diagnosis. This inspection method is the most convenient and efficient way to obtain pathological diagnosis of internal diseased tissues in the human body. There...

AI Technical Summary

Problems solved by technology

[0003] Since the far end of the endoscope is generally equipped with imaging devices such as ultrasonic detectors or optical cameras, for some small human body cavities (such as some small bronchi of the lungs, etc.), the endoscope cannot enter, and the e...

Images