Contrast agent auxiliary injector for intervention department and auxiliary supporting assembly thereof

Abstract

The invention discloses acontrast agent auxiliary injector for intervention department and an auxiliary supporting assembly thereof, and relates to the technical field of medical instruments, which comprises an injection mechanism, and an auxiliary injector and an auxiliary supporting assembly which are used for moving the injection mechanism; the injection mechanism comprises an injection pipe, an injection head arranged at one end of the injection pipe, a piston installed in the injection pipe in a matched mode and a push rod fixedly connected to one end of the piston. The auxiliary injector and the auxiliary supporting assembly provided by the invention are reasonable in structure, scale marks are arranged on the injection pipe, the injection pipe is a transparent pipe, the injection amount of a contrast agent is convenient to observe, the contrast agent is convenient to inject by arranging the push rod pushing part, operation is convenient, labor is saved, pushing of the push rod to move is stopped by arranging a push rod thrust unit, the elastic force of a limiting spring, a thrust piston and a thrust rod, so that unnecessary pain of the patient caused by excessive liquid in the biliary tract due to the fact that the blood vessel of the patient is blocked and the contrast agent is injected into the body of the patient through mechanical thrust is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an auxiliary contrast agent injector for interventional departments and an auxiliary support assembly thereof. Background technique [0002] When performing retrograde pyelography, urethrography, and cholangiography, etc., it is necessary to inject contrast medium into the patient's body. Contrast agents are chemicals injected into human tissues or organs to enhance image viewing. The density of these chemicals is higher or lower than that of the surrounding tissue, which creates a contrast with the surrounding tissue, and the contrasting image can be displayed by some devices. [0003] At present, the commonly used bolus injection method is that the doctor injects the contrast agent into the patient's body under the irradiation of the X-ray machine. Long-term exposure to radiation will obviously damage the doctor's health. Therefore, relevant scholars have designed a co...

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Problems solved by technology

[0003] At present, the commonly used bolus injection method is that the doctor injects the contrast agent into the patient's body under the irradiation of the X-ray machine. Long-term exposure to radiation will obviously damage the doctor's health. Therefore, relevant scholars have designed a contrast agent injector , but when using this type of contrast agent injector, the pressure change in the patient’s body cannot be sensed in real time, so the speed of injection and the amount of contrast agent injected cannot be well controlled. There are potential safety hazards in special cases, such as : The patient has biliary tract obstruction, which cannot be distinguished before angiography. If the contrast agent is still injected into the patient’s body with mechanical thrust, the total amount of fluid in the biliary tract will increase and cannot be discharged normally, and the pressure in the biliary tract will rise sharply. The damage of the tube wall or tissue and the unnecessary suffering of the patient are increased. Therefore, the application provides a contrast medium auxiliary injector for interventional department and its auxiliary support assembly to meet the demand

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