Novel endoscope ultrasonic suction biopsy needle

Abstract

The invention relates to the technical field of endoscopic ultrasonic suction biopsy needles, and discloses a novel endoscopic ultrasonic suction biopsy needle which comprises a safety ring, the safety ring is fixed on a scale rod by inserting a first locking rod and a second locking rod in a locking groove, the problem that a screw is easy to slip when a traditional screw is fixed is avoided, and the safety ring is fixed on a scale rod by inserting the first locking rod and the second locking rod in a locking groove. The fixing effect is more stable, dislocation is avoided in the using process, the overall structure is more stable and reliable, an operation is facilitated, a spring can be compressed when a first locking rod and a second locking rod retract to be separated from a locking groove, at the moment, the position of a safety ring can be conveniently moved, and after the safety ring is moved to a proper position, a locking bolt is loosened, and the safety ring is fixed. The first locking rod and the second locking rod can be inserted into the locking groove again under the action of the spring to fix the position of the safety ring, the complexity of secondary operation of screw locking is avoided, use is more convenient and faster, the design is novel, and the safety ring fixing device has the advantage that the position of the safety ring can be fixed conveniently.

Description

technical field [0001] The invention relates to the technical field of endoscopic ultrasonic aspiration biopsy needles, in particular to a novel endoscopic ultrasonic aspiration biopsy needle. Background technique [0002] In order to accurately find out the cause of disease when diagnosing a disease, it is necessary to carry out a biopsy to the lesion, and the doctor uses a medical device to obtain a certain amount of living tissue from the lesion for pathological analysis, so that symptomatic treatment. In the prior art, an endoscopic ultrasonic suction biopsy needle is usually used for biopsy to take out living tissue. [0003] For example, the Chinese patent announcement number is: the patent of CN211213273U, which discloses a disposable endoscope ultrasonic suction biopsy needle, which is wrapped in a scale bar ( 5), the inside of the scale rod (5) has a handle connection tube (8), a pipeline (9), and a biopsy needle (10), and a metal sleeve (11) is embedded in the fro...

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Problems solved by technology

[0004] But, in actual use, we find that the endoscopic ultrasonic suction biopsy needle of this patent still has certain deficiencies, such as, in this patent, the stop cap (safety ring in the present application) is on the scale rod The fixing of the stop cap is accomplished by screws. However, in the process of actual use, the screws are not only very easy to slip, but also need to be loosened and tightened twice every time the position of the stop cap is adjusted, which not only wastes a lot of Sometimes it is easy to forget to tighten it, which brings some inconvenience to the operation

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