Double-cavity injector capable of being used for ultrasonic guided nerve block

Abstract

The invention relates to the field of medical supplies and particularly relates to a double-cavity injector capable of being used for ultrasonic guided nerve block. The injector comprises an injectorbody, an injector shunt end and an extension tube, wherein the injector shunt end consists of a first shunt tube, a second shunt tube, a base, an adjusting disc and an injector mastoid; the first shunt pipe and the second shunt pipe are communicated with the base, the base is connected with the mastoid in a sealed mode, the adjusting disc is provided with a first hole and a second hole respectively, and the adjusting disc is adjusted to rotate through an adjusting handle, so that the first shunt pipe and the second shunt pipe are communicated with the first hole and the second hole respectively, and on-off adjustment is achieved; the first shunt tube and the second shunt tube are respectively communicated with the medicine bag and the injector body. According to the injector, the hidden danger of injection pollution caused by replacing the injector back and forth in the processes of extracting and injecting normal saline and locally anesthetizing liquid medicine during nerve block under the guidance of ultrasonic waves is effectively solved.

Description

Technical field[0001]The invention relates to the field of medical equipment, in particular to a dual-cavity syringe that can be used for ultrasound guided nerve block.Background technique[0002]In clinical medical work, it is often necessary to alternately or sequentially inject two liquid medicines, such as ultrasound-guided nerve block. In the ultrasound-guided nerve block, the "water separation" and "water positioning" techniques are needed, that is, the position of the needle tip of the puncture needle is judged by first injecting physiological saline and the diffusion of the liquid medicine is observed at the correct level and position. Local anesthetic solution can be injected to complete nerve block if the position and the spread of the drug solution are correct. This requires two syringes to be used to extract saline and local anesthetic solution respectively. When using, replace the two syringes back and forth according to the puncture situation. There is a hidden danger of...

AI Technical Summary

Problems solved by technology

However, it is necessary to use two syringes to extract physiological saline and local anesthetic solution in advance, and replace the two syringes back and forth according to the puncture situation during use. It is inevitable that air will enter the syringe during the process of anesthetic liquid, and the air bubbles mixed in the liquid are difficult to discharge, and the liquid containing tiny air bubbles will directly interfere with the ultrasound image after injection, making the image confusing and difficult to identify, thus cannot proceed

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