Contrast agent injection device

Abstract

A contrast agent injection device comprises a medicine injection barrel, an injection needle, a hose, a stirring barrel, an injection propulsion motor, a damping base, a worm, a worm wheel, a suctionpump and a sliding stirring assembly. A guide seat is arranged on the damping base, and the medicine injection barrel is arranged on one side of the guide seat. A rotating shaft is arranged on the injection propulsion motor, and the worm wheel is arranged on the rotating shaft. A sliding groove is formed in the guide seat, and the worm is slidingly arranged in the sliding groove. A piston is arranged at the front end of the worm, the sliding stirring assembly is arranged on the worm, and the sliding stirring assembly and the piston are arranged in the medicine injection barrel. A medicine outlet pipe is arranged at the front end of the medicine injection barrel, and the injection needle is arranged at the front end of the medicine outlet pipe. A stirring motor is arranged at the top of thestirring barrel. A rotating column is arranged on the stirring motor, and a plurality of stirring blades are arranged on the rotating column. A suction pump is arranged below the stirring barrel andcommunicates with the stirring barrel and the medicine injection barrel. According to the invention, the contrast agent suspension can be automatically and continuously stirred to prevent the contrastagent from precipitating.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a contrast agent injection device. Background technique [0002] Contrast agents are chemicals that are injected or administered into human tissues or organs to enhance image viewing. These articles are denser or lower than the surrounding tissue, creating a contrast that displays images with certain devices. Because many tissue structures of the human body are not visible on X-ray films, they can only be displayed "intensified" by using contrast agents. Some X-ray examination techniques, such as angiography, cannot be performed without contrast agents. In some techniques (such as: CT), although the contrast agent is not always necessary, the use of contrast agent will make the diagnostic image clearer and help the doctor to make a more reliable diagnosis for you. [0003] When a patient suffers from a cardiovascular disease, it is necessary to determine the...

AI Technical Summary

Problems solved by technology

But at present, after the contrast agent is stirred evenly and poured into the syringe, the suspension of the contrast agent will precipitate during the process of interventional contrast agent injection, which makes the contrast effect unsatisfactory.

If the contrast medium is injected into the human body after forming small pieces, it will cause harm to the body

[0004] Due to the high pressure and fast speed of high-pressure injection of contrast medium, coupled with the patient's own blood vessel factors, it is easy to cause the contrast medium to leak out of the blood vessel. If it is not handled in time or improperly, local swelling, pain, and congestion will occur in mild cases; In severe cases, it can cause necrosis of the surrounding subcutaneous tissue, or even cause dysfunction, and increase the pain of the patient. Therefore, it is necessary to control the flow of the contrast agent.

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