Dispensing method for powder injection bottle and one-way valve dispensing device

Abstract

The invention discloses a medicine dispensing method for a powder injection bottle and a one-way valve type medicine dispensing device. The medicine dispensing method includes preparing, inserting a needle into a powder needle bottle and an infusion bag, sucking the liquid medicine in the infusion bag to a transition container, and placing the transition container Inject the internal medicine into the powder injection bottle, pull out the needle, exchange the needle position, insert the needle into the powder injection bottle and the infusion bag, suck the medicine in the powder injection bottle into the transition container, inject the medicine in the transition container into the infusion bag, and complete the dispensing The one-way valve type dispensing device includes one-way valve one, one-way valve two and an air pump connected to the transition container, and the needle one and needle two at the ends of the catheter one and the two ends of the catheter tube are respectively provided with a chuck one , chuck two. The dispensing method can realize the automatic dispensing of liquid medicine in the powder injection bottle, and the cooperation between the first chuck and the second chuck and the mechanical automatic control device further improves the dispensing efficiency; the ventilation pinholes and air holes on the first needle and the second needle can balance the infusion bag or powder The air pressure inside and outside the needle bottle, and two liquid level controllers monitor the dispensing process, making the dispensing easier and more reliable.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a dispensing method for a powder injection bottle and a one-way valve dispensing device used in the dispensing method. Background technique [0002] At present, when carrying out intravenous infusion dispensing in the hospital, usually utilize manual operation to extract medicinal liquid from one or more injection bottles earlier with a syringe, then inject in the infusion bottle for its infusion. The above-mentioned operation process is relatively complicated, especially when a large amount of liquid medicine needs to be prepared, the labor intensity for nurses is high, and the efficiency is low. [0003] For this reason, Chinese Patent Application No. 201220041839.6 and Authorized Announcement No. CN 202459331 U disclose a disposable special dispensing device with double needles and one-way valve, such as figure 1 , 2 As shown, the medical dispensing device includes a structu...

AI Technical Summary

Problems solved by technology

[0006] 1. The dispensing device needs to use a syringe to manually suck the liquid medicine into the syringe, and then push it to the infusion bottle. The manual dispensing operation is cumbersome and inefficient, especially when a large amount of dispensing is required, which cannot meet the requirements;

[0007] 2. The first one-way valve 02 and the second one-way valve 05 are respectively built in the suction pipe 01 and the liquid injection pipe 04. For disposable medical products, the suction pipe 01 with a built-in one-way valve structure , The liquid injection pipe 04 has a complex structure and high cost;

[0008] 3. When dispensing medicine, if the suction pipe 01 and the liquid injection pipe 04 do not have a channel to ventilate with the outside atmosphere, when the syringe extracts the medicinal liquid from the closed powder injection bottle and pushes the medicinal liquid into the closed infusion bottle, when the powder injection bottle or When the pressure in the infusion bottle increases, the liquid medicine is not easy to be sucked out of the injection bottle or injected into the infusion bottle smoothly, and it will be difficult to dispense the medicine;

[0009] 4. The pipe joint 07 used in the dispensing device connects the suction tube 01, the injection tube 04, and the syringe to form a three-way connection. The liquid pipe 04 is a hard plastic pipe. After the liquid suction pipe 01 and the liquid injection pipe 04 are connected to the pipe joint 07, since the pipe joint 07 belongs to a three-way pipe joint, the liquid suction pipe 01 and the liquid injection pipe 04 cannot be bent, so It is difficult to keep the connected injection bottles (such as powder injection bottles) and infusion bottles horizontally at the same time, that is, one of the injection bottles and infusion bottles may be in a horizontal state while the other is in an inclined state, and the length of the suction tube 01 and the injection tube 04 Limited immobility, inconvenient for dispensing

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