Automatic injecting instrument for brain angiography

Abstract

The invention discloses a cerebral angiography automatic injecting apparatus, including a semicircle slot economy. A spring and a spring base are arranged at the back of the economy, and the other end of the spring is connected with a piston matching with the economy. An injector card holder is arranged at the front part of the economy, wherein the card holder has an obligate slot which can make the injecting needle pass. A medical injector is arranged between the piston and the injector card holder; also includes an electromagnetism two-bit triple valve and a control circuit, wherein the electromagnetism two-bit triple valve is connected on the hose between the injector and the perforating needle, through moving the electromagnetism relay control valve core, the turn-on of the hose is controlled. The control circuit includes an electromagnetism relay, a time relay, an AC contactor and a rotating type switch, wherein the electromagnetism relay loop, the time relay and the rotating type switch are connected in series, and the time relay electrified delay close contact are connected in series with the AC contactor loop, while the contactor moving contact are in series connected in the control circuit of the X ray machine.

Description

technical field [0001] The invention relates to the technical field of injection instruments, in particular to an automatic injection instrument for cerebral angiography. Background technique [0002] Cerebral angiography is an important means for diagnosing cerebrovascular diseases. Before brain surgery, cerebral angiography can be used to determine the location, shape, size, number, blood circulation, and bleeding complications of intracranial aneurysms; after surgery, cerebral angiography can be used to observe the effect of surgical treatment. With the development of computer technology, computed tomography (CT) is generally used before and after brain surgery, but cerebral angiography still has its unique features, and it has the same effect and value as computed tomography (CT). Cerebral angiography is also flawed: during contrast surgery, medical staff must push contrast agents for patients in the X-ray room, and instruct the X-ray machine operator to start X-ray mac...

AI Technical Summary

Problems solved by technology

Cerebral angiography is also flawed: during contrast surgery, medical staff must push a contrast agent for the patient in the X-ray room, and instruct the X-ray machine operator to start the X-ray machine, and the medical staff are repeatedly exposed to X-rays, causing physical damage Occupational diseases are prone to be left behind

Although this solution solves the problem of preventing doctors from being exposed to X-rays to a certain extent, its structure is complex, the cost is high, and the implementability is poor.

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