Automatic test instrument for Allen test

Abstract

The invention relates to an automatic test instrument for an Allen test. The problems of increasing identification efficacy and reducing the ratio of false negative or false positive in test results can be effectively solved. In the automatic test instrument, a tank body is formed by hinging a lower tank body and an upper tank body with the same caliber through a hinge, the upper tank body is of an opening and closing structure by taking the hinge as a shaft, corresponding electromagnet sucking discs are respectively arranged at the front four corners of the tank body, and the front joining part of the upper tank body and the lower tank body is provided with a wrist bonding hole; the front surface of the upper tank body is provided with a button switch, an observation hole is arranged on the top surface, and a power source, an assembly comprising an air compressor and an electromagnetic valve and a light source are arranged inside the upper tank body; and an air sac is arranged at the wrist bonding hole, the air sac is communicated with the air compressor via pipelines and the electromagnetic valve, and the power source is connected with an air compressor switch, an electromagnetic switch on the left air sac pipeline, an electromagnetic switch on the right air sac pipeline, an electromagnet sucking disc closing switch and the light source via a power source switch. The automatic test instrument has convenience for carrying and use, prominent observation topic, simple structure, low cost and easiness in operation.

Description

technical field [0001] The invention relates to a medical device, in particular to an automatic detector for Allen's test mainly used for detecting the collateral circulation of the radial artery of a patient's hand before coronary intervention. Background technique [0002] Allen's test was first named and described by Edgar V. Allen in 1929, and it has been used clinically as a diagnostic method so far. In recent years, the diagnosis and treatment technology of cardiac coronary intervention has developed rapidly, and the number has increased sharply. As the first step of coronary interventional technique, the selection and puncture of vascular access has also developed from the femoral artery approach in the past to today's radial artery approach. When using this route, postoperative radial artery stenosis and occlusion are one of the main complications and have certain risks. Therefore, in order to prevent hand ischemia caused by damage to the radial artery after punctu...

AI Technical Summary

Problems solved by technology

Compared with the Allen test, the latter equipment is more complicated and expensive, and the operation is not easy, so the Allen test is still widely used clinically.

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