Nerve block anesthesia injection system guided by ultrasound

Abstract

The invention discloses a drug injection system for nerve block anesthesia under the guidance of ultrasound. A syringe is fixedly installed at the front end of the casing of the drug injection device, and a slide rail is fixedly installed at the rear end horizontally. The piston rod of the syringe is connected with a slider through a connecting rod. The block is slidingly connected with the slide rail, and the tail end of the needle is connected with a connecting pipe and a connecting wire through the needle seat. There is a controller embedded in it, and the controller is electrically connected to the slider and the connecting head through wires. The needle head is composed of a needle point and a triangular needle tube. The three edges of the triangular needle tube are all round and blunt. Surrounded by three equilateral triangles, each equilateral triangle is provided with a drug outlet hole in the center. The invention realizes drug injection and withdrawal before drug injection through a simple button switch, so that it can be judged whether the needle tip is in the blood vessel, greatly reducing the occurrence of anesthesia complications, and reducing pain for patients.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an ultrasound-guided nerve block anesthesia injection system. Background technique [0002] With the widespread development of ultrasound-guided nerve block anesthesia in clinical anesthesia, clinical anesthesia is more precise and patients are more comfortable, but at the same time there are some problems---the syringe control is unstable when the drug is administered after the puncture is successful, resulting in The position of the needle tip changes, causing secondary damage to the patient's neurovascular and local anesthetic poisoning caused by mistaken injection of local anesthetic into the blood vessel! Contents of the invention [0003] In order to solve the above problems, the present invention provides an ultrasound-guided nerve block anesthesia injection system, which reduces the occurrence of anesthesia complications and reduces pain for patients. Greatly improved th...

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