Ultrasound-guided nerve block puncture needle

Abstract

The invention provides an ultrasound-guided nerve block puncture needle, which can enhance ultrasonic reflection and further clearly image. The nerve block puncture needle comprises a needle tip guiding area, a needle body, a needle base, an extension tube and a needle tail, wherein the needle tip guiding area comprises a puncture end and a guiding part, and a plurality of annular grooves arranged in a linear mode are formed in the shallow surface layer of the tube wall of the guiding part. The puncture needle has remarkably improved ultrasound reflection and clearer developing effects, and the safety and the effectiveness during puncture are effectively improved.

Description

technical field [0001] The invention relates to the field of anesthesia of medical devices, in particular to a nerve block puncture needle used for development under the guidance of ultrasound. Background technique [0002] In the modern medical field, it is often necessary to sample, draw fluid, and inject specific tissues or organs of patients, such as puncturing tissues to obtain living cells, injecting anesthetics or sedatives into nerves, etc. Therefore, it is very important to accurately grasp the position of the front end of the puncture needle, so it is necessary to use an ultrasonic guiding device for accurate positioning. [0003] At present, guide areas with various shapes have been used to increase the intensity of ultrasonic reflection. For example: CN101227862 B discloses a puncture needle that processes the guide area into a right-angle prism type, but many studies have shown that this kind of processing will lead to safety problems such as a decrease in the ...

AI Technical Summary

Problems solved by technology

For example: CN101227862 B discloses a puncture needle that processes the guide area into a right-angle prism type, but many studies have shown that this kind of processing will lead to safety problems such as a decrease in the strength of the puncture needle and breakage of the puncture needle; The puncture needle of the reflector forms a strong reflection under the ultrasound, which makes the strong echo displayed by the needle tube interfere with the development of surrounding tissues, especially the tissue behind the needle tube

CN 107343812 A discloses a puncture needle with dot-shaped depressions, but many studies have shown that when this puncture needle is used in deep tissues of the human body (more than 10cm depth), the image will appear unclear; and the irregular ultrasound-guided graphics Images of structures are susceptible to visual distractions

[0004] To sum up, the currently existing puncture needles will cause the ultrasonic image of the puncture needle to be unclear, and it is difficult to grasp the correct position of the puncture needle. In the field of medical anesthesia, it is urgent to develop an ultrasound-guided puncture needle with excellent ultrasonic reflectivity to improve Accuracy of piercing

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