Cerebral Angiography Syringe

Abstract

The invention discloses a cerebrovascular contrast medium injector. The injector comprises a push rod and a needle cylinder, a push disk is arranged at the handheld end of the push rod, and a finger pressing plate is arranged at a push rod inlet of the needle cylinder; the injector is characterized in that limit plates are rotatably connected with the push disk or the finger pressing plate, so that the limit plates rotate along the connection portion of the push disk or the finger pressing plate. The cerebrovascular contrast medium injector is simple in structure and convenient to use, the brain air embolism can be effectively prevented in the process of contrast medium injection, when a small amount of air is sucked, through arrangement of the limit plate, even medical personnel conduct direct injection, the air embolism cannot be caused, accordingly, medical personnel do not need to spend time exhausting a small amount of air, then the workload of medical personnel is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a cerebral angiography contrast agent injector. Background technique [0002] Cerebral angiography is an X-ray projection examination technique that injects contrast agent directly into blood vessels to visualize the cerebral vascular system. The existing contrast agent injectors are ordinary injectors. Because air is often sucked into the injector during the liquid suction process, the air cannot be injected into the body. If the amount of injected air reaches a certain amount, it is easy to form an air embolism and pose a threat to the health of the patient. When contrast agent is injected for cerebral angiography, a small amount of air injection can cause air embolism in the brain, posing a threat to the life of the patient. In order to avoid expelling the inhaled air out of the syringe, medical staff often spend time handling the air in the syringe, which undoubted...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem of the inconvenient operation of the contrast agent injector in the prior art and easily lead to cerebral air embolism, the technical solution of the present invention is as follows:

Images