an infusion set

Abstract

The invention discloses an infusion set. The infusion set comprises a catheter, a bottle inserting needle, an air inlet tube, a flow regulator, a dripping cylinder, a liquid medicine filter and a puncture needle, wherein the air inlet tube, the flow regulator, the dripping cylinder, the liquid medicine filter and the puncture needle are sequentially arranged on the catheter. The infusion set further comprises a flow-dividing device and an air filter, wherein the flow-dividing device is arranged inside the portion, between the dripping cylinder and the liquid medicine filter, of the catheter, an opening of the air inlet tube is plugged with the air filter, the top surface of the flow-dividing device is of a protruding spherical surface shape, the air filter comprises a plug head and a cylindrical plug body, the dripping cylinder comprises a cylinder body, a liquid inlet tube, a liquid outlet tube, a floating cylinder and a floating cylinder base, and the liquid inlet tube and the liquid outlet tube are arranged at the two ends of the cylinder body respectively. According to the infusion set, various impurities can be filtered out in advance so that the liquid medicine filter can not be blocked; besides, when air is filtered, the air contact area is increased, the number of air inlet holes is increased, smooth air flow is guaranteed, and no blocking exists; meanwhile, the floating cylinder is free of overturn and dislocation, and gas can be effectively isolated after the infusion process is completed.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an infusion set. Background technique [0002] Transfusion is one of the important therapeutic means of clinical medicine, and existing transfusion set generally comprises bottle inserting needle, air inlet (air intake pipe), dropper, catheter or the like. Many aspects need to be paid attention to during design: first, during infusion, in order to prevent bacteria in the air from entering the infusion liquid, the mouth of the air inlet tube should be stuffed into an air filter. The air filter needs to effectively filter harmful substances in the air, and at the same time, it cannot be blocked because the dense air intake holes are too small or too few. Second, some liquid medicines need to be filtered. The liquid medicines that need to be filtered are generally infused through an infusion set with a liquid medicine filter. Clogged filter. Third, gas cannot be mixed during in...

AI Technical Summary

Problems solved by technology

Second, some liquid medicines need to be filtered. The liquid medicines that need to be filtered are generally infused through an infusion set with a liquid medicine filter. clogged filter

Third, gas cannot be mixed during infusion, if the gas enters the human body, it will cause harm

However, due to structural defects, the currently designed buoys are prone to overturning and misalignment when the liquid medicine floats up and falls after the infusion, and cannot effectively block the liquid outlet pipe and fail to effectively isolate the gas.

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