Use And Maintenance Of Infusion Set

Infusion sets can generally be divided into two categories: one is infusion set, and the other is micro syringe. The infusion set is mainly designed for patients' infusion, which can accurately give the liquid as needed; Microinjector is mainly used when the output per unit time is small or the accuracy per unit time is high. Z is suitable for microinfusion of drugs that are difficult to operate manually. At present, it is widely used in the rescue and monitoring of critical patients, such as intravenous infusion, arterial infusion, peritoneal dialysis, contrast agent, anesthetic injection.

The peristaltic infusion set should pay attention to the matching between the infusion set and the infusion pimp. Adjust the feeding speed as needed, and then start to work. The syringe of micro syringe should be of the specified model. If the alternative syringe will cause the error of injecting liquid per unit time, the feeding speed must also be adjusted. When using, pay special attention not to drop liquid on the instrument. If it happens, wipe it dry in time to prevent the liquid from entering the machine and causing machine failure. We also need to measure the indicators of the infusion set according to the instructions. Z is mainly about accuracy detection.

General infusion set can be composed of liquid propulsion device, digital display, control part and alarm part. The pushing device can be divided into peristaltic type, rolling type, piston type and screw needle cylinder type. At present, peristaltic type is mostly used for infusion. It is a row of pressers that squeeze and loosen the pimple in order, so as to promote the liquid. The presser foot in this way is like peristaltic mode. Accelerating the peristaltic frequency can increase the liquid flow rate. Micro syringes use screws to turn rotary motion into linear motion. There is a linear grating moving with the screw on one side, which can accurately measure the flow, and the accuracy can reach 0.1ml/h. The driving force of the driving device generally adopts the hollow cup motor, which has a small moment of inertia and is easy to control. The motor voltage adopts DC pulse, and there is a grating on the motor shaft to control the rotation of the motor.

Since the liquid is directly input into the patient's vein, which is largely related to the patient's safety, there must be an alarm system to stop the infusion in time in case of abnormal conditions, and send out light alarm and sound alarm, which is handled by medical personnel in time. The alarm can include pressure alarm for whether the infusion pipe is blocked, liquid alarm for whether the liquid is used up and bubble alarm in the infusion pipe. The working state of all functions is executed by microprocessor.