Endoscope puncture sampling needle used for bronchoscope

Abstract

An endoscope puncture sampling needle used for a bronchoscope comprises a handle, a needle core, an injector, and a needle tubing fixed on the handle and connected with the injector; the needle tubing is sleeved with a needle sheath with an internal diameter slightly greater than the outer diameter of the needle tubing; a connection end of the needle sheath and the handle is provided with a sleeve; a surface of the sleeve is provided with grooves; one end of the handle is of an inner concave structure for allowing the sleeve to be inserted into; an inner wall of the inner concave structure is provided with projections matched with the depth and width of each groove; the number of the grooves is two; each groove comprises a disposing area; each disposing area is communicated with an operating channel via an L-shaped moving channel; and one side of each moving channel is provided with a movable area. The endoscope puncture sampling needle is simple in structure and convenient to operate and is suitable for bronchoscopes having different lengths, protection is provided for retracting the sampling needle, and the problems that a traditional sampling needle is entirely controlled by hand feeling when used, so control is inaccurate and detection cannot be carried out due to the fact that tissues captured at a nidus are too less are effectively solved.

Description

technical field [0001] The invention belongs to the field of medical instruments, in particular to an endoscopic puncture sampling needle used for bronchoscopes. Background technique [0002] A bronchoscope is a flexible endoscope with an optical system and a mechanical operating system. It is inserted through the patient's mouth and nose, and can perform various diagnostic and therapeutic operations on respiratory diseases by directly peeking at the lesion of the lungs, or use The sampling needle is inserted into the lesion outside the lumen, and a small amount of tissue is extracted by needle aspiration and sent for pathological examination to confirm the diagnosis. It is playing an increasingly important role in the field of modern respiratory medicine. The simple structure of the sampling needle currently used clinically often causes the following problems. [0003] 1. Without a fixing device, there is a risk of the sampling needle moving during the puncture process, w...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an endoscopic puncture sampling needle for bronchoscopy, which has a simple structure, provides protection for the sampling needle when it is withdrawn, is easy to operate and can effectively solve the problem that traditional sampling needles rely entirely on hand feeling when in use. Controlling the depth of the sampling needle will lead to problems such as inaccurate control and too little tissue in the grasped lesion for pathological examination

Images