Medicine preparation method for ampoules and one-way valve type medicine preparation device

Abstract

The invention discloses a medicine preparation method for ampoules and a one-way valve type medicine preparation device. The medicine preparation method comprises the following steps: making a preparation, inserting needles into uncapped ampoules and an infusion bag, sucking liquid medicine in the ampoules into a transition container through a one-way valve I, injecting the liquid medicine in the transition container into the infusion bag through a one-way valve II, and pulling out the needles to complete medicine preparation. The one-way valve type medicine preparation device comprises a liquid catheter I and a liquid catheter II, wherein the liquid catheter I and the liquid catheter II are respectively connected with an interface I and an interface II on the transition container, the one-way valve I and the one-way valve II are respectively arranged on the liquid catheter I and the liquid catheter II, an interface III on the transition container is connected with an air pump, and a needle II further comprises a ventilating needle hole. The medicine preparation method disclosed by the invention can realize automatic preparation of liquid medicine in the ampoules and the operation is convenient to conduct; the ventilating needle hole in the needle II can balance internal and external pressure of the infusion bag, the medicine preparation becomes easier in combination with a liquid level controller, and the infusion bag is prevented from being expanded and cracked; since a chuck I and a chuck II respectively on a needle I and the needle II cooperate with a mechanical automatic control device, the automatic medicine preparation efficiency is further improved.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a drug dispensing method for ampoule bottles and a one-way valve type drug dispensing device used in the drug 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 application number 201220041839.6 and authorized announcement number 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 ...

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 built into the suction pipe 01 and the liquid injection pipe 04 respectively. For disposable medical products, the suction pipe 01 with a built-in one-way valve structure , The cost of liquid injection pipe 04 is relatively high;

[0008] 3. When dispensing medicine, if the suction pipe 01 and liquid injection pipe 04 do not have a channel to ventilate with the outside atmosphere, when the syringe extracts the medicine liquid from the closed injection bottle and pushes the medicine liquid into the closed infusion bottle, when the injection bottle or the infusion bottle When the internal pressure 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 or ampoules) and infusion bottles horizontally at the same time, that is, one of the injection bottles and infusion bottles may be horizontal while the other is inclined. At the same time, the suction tube 01, liquid injection Tube 04 is limited in length and cannot be moved, which is inconvenient for dispensing

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