automated drug delivery system

Abstract

The automatic drug delivery system of the present invention can adapt to the intravenous injection operation in which drug powder needs to be added into the drug solution. The whole process is automatically completed, which is convenient and fast. The screw drive mechanism is used as the driving source of the needle tube puncture action, and the puncture stroke can be precisely controlled. , and the screw drive mechanism can provide more stable and greater puncturing force. At the same time, electromagnets and iron blocks are used as clutch means, and the rotation of the motor is converted into the puncturing action of the needle tube through the driving method of the pendulum, which can reduce the The conversion of the action is completed at the same time with a small vertical size. The structure is ingenious. The entire delivery system does not require dispensing operations from the input of liquid medicine and medicine powder, and infusion can be performed at the same time as medicine dispensing, which improves efficiency.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an automatic drug delivery system. Background technique [0002] Intravenous injection is divided into transient and continuous. Transient intravenous injection is mostly directly injected into the vein with a syringe, that is, a general "injection", while continuous intravenous injection is implemented by intravenous drip, commonly known as "spot", "spot drip". "It is widely used in hospitals and clinics. Therefore, there are many studies and improvements on it. At present, the focus of improvement on continuous intravenous injection is how to replace the drug solution after the infusion is completed. For example, Patent Document 1 discloses a mechanical device for patient-controlled replacement of medical fluid. By setting multiple infusion tubes on the infusion tube fixed plate with a ratchet structure, and then manually driving the ratchet for fluid replacement, there...

AI Technical Summary

Problems solved by technology

[0006] In summary, in the prior art, there is no one that can automatically operate, add powder to the liquid, inject multiple liquids at the same time according to the patient's wishes, and can control the injection sequence of different liquids. Select, and at the same time, separate the liquid medicine circulation pipeline and the linkage mechanism to facilitate the disassembly and replacement of the automatic drug delivery system of the intravenous injection automatic replacement device

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