The present invention is a device for fixing a general syringe by inserting into a contrast agent automatic injection device (Injector), a medical device used for a test for administering a contrast agent in an MRI laboratory, and is suitable for a contrast agent volume (7.5ml ~ 20ml) used for an MRI test. It is designed to insert a syringe of the standard, it is a syringe adapter (Adapter) is a syringe fixing device that can be used to mount a domestic general syringe sterilized safely in the country. Conventionally, only contrast agents of certain importers are allowed to be installed.In addition, although the volume of contrast agent used for MRI test is 20ml or less, it is composed of imported injection injection set of large capacity (100ml), even when the contrast agent is installed. It can be installed only by the operation of the machine. And because of the high cost, there is room for recycling, and if reused, there is a problem that may pose a risk to patient infection due to the backflow of contrast medium. Domestic sterile syringes used in the present invention can be equipped with a small amount of contrast agent because they are equipped with a direct contrast agent, and a syringe adapter which is a domestic syringe fixing device suitable for the amount of contrast agent required for MRI (less than 20ml). Adapter). Conventional injection injection sets, which have been used in the past, are designed to use only certain pharmaceuticals contrast agents. If only the domestic general syringe is installed in the design, the importer can use it in all other contrast agents regardless of the type of contrast agent and the shape of the contrast agent container. The domestic syringe can be used in the syringe adapter (Adapter), which is manufactured by the present invention. If you compare the effects that are produced by the imported injection injection set that has been used in the past, First, due to the characteristics of the imported injection injection se
