JPH0140522Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid medicine mixing needle used for mixing medical liquids.

When transferring and mixing the medicinal solution contained in a medicinal solution bottle with the medicinal solution in another bottle, the vials are symmetrically inserted into the medicinal solution mixing needle, and the medicinal solution in the upper bottle is transferred downward through the liquid passage and air passage of the medicinal solution mixing needle. Gas such as air in the lower bottle is transferred to the upper bottle, and the medicinal liquids are mixed in the lower bottle. With conventional drug mixing needles, in order to transfer all of the drug in the upper bottle, the part of the needle that has been inserted too far must be removed and the tip of the needle should be positioned on the surface of the bottle stopper to transfer all of the remaining drug. In addition, the operation of moving the needle portion described above sometimes caused troublesome handling. Therefore, the present invention solves these problems and provides a drug mixing needle that is easy to use. Next, the present invention will be explained in detail with reference to drawings of one embodiment.

FIG. 1 is a side sectional view of a conventional embodiment.
When the drug solution 2 in the upper bottle 1 is transferred to the drug solution 4 in the lower bottle 3 and mixed, the liquid level of the drug solution 2 in the upper bottle decreases with the transfer, and the liquid is mixed at the mouth of the cutting edge of the liquid passage A of the mixing needle 5. The surface 2a becomes the upper limit liquid level and the transfer stops. Therefore, the chemical liquid 2 is at the liquid level 2
A residual portion 2b below a is left. B is an air passage that moves the air from the lower bin 3 to the upper bin 1. When all of the remaining portion 2b is to be transferred to the lower bottle 3, the tip of the liquid passage A of the needle 5 is removed to the inner surface 6a of the stopper 6 of the bottle 1, and the remaining portion of the liquid 2b is transferred. Reference numeral 7 has a holder which holds upper and lower bottles in a vertically symmetrical manner with a needle base.

2. FIGS. 1 and 2 are side sectional views showing one embodiment of the present invention.

Figure 1 shows a long liquid needle 9 and a short liquid needle 10 on a needle base 8.
are provided, and each has the function of an air needle (described later) during mixing of the chemical solution. The needle base 8 is a holder 8 that holds upper and lower bottles 11 and 12 symmetrically up and down.
a, 8a, and bottle stoppers 11a, 12 are placed at a height within one-half of the inner wall of each holder 8a.
A convex portion 8c is provided on the circumference of the position so that the needle a can be temporarily held together with the bottle, and when the bottles 11 and 12 are pushed in between the needle base 8, the temporary stop is removed and the short needle 10 is symmetrically held in the bottle stopper 11a. , 12a and mixes the remaining drug solution 11b so that it can be transferred into the lower bottle 12.

FIG. 2 shows the length of the short needle 10 provided on the needle base 15 and the bottle holder 15 provided vertically symmetrically on the needle base 15.
a, a concentric circular protrusion with a small diameter, which is provided at the same height as within one-half of the inner wall height of 15a, and has a protrusion 8c from the inner bottom surface 15b of the needle hub 15 at the same position as the height; 15ab are placed vertically symmetrically on the needle base 15, and when the bottles 13 and 14 are inserted between the needle bases 15 and pushed in, the above-mentioned temporary stop is removed and the short needles 10 are symmetrically pierced through the bottle stoppers 13a and 14a and remain. Chemical solution 1
3b can be transferred into the lower bottle 14 to mix the chemical solution.

Furthermore, the role of the long needle 9 and the short needle 10 is that during the operation of mixing the chemical liquid in the upper bottle 11 or 13, the liquid medicine 11b or 13b in the upper bottle is transferred to the tip opening 9a of the long needle 9. Surface 11c or 13
When c is reached, the mixing is interrupted and the needle 9 becomes an air needle. In such a case, push the upper and lower bottles 11 and 13, or 13 and 14 between the needle bases 8 or 15, and close the caps of the upper and lower bottles. 11a and 12a or 13a
and 14a symmetrically, each of the short needles 10 is pierced to form a liquid needle, thereby making it possible to transfer the residual drug solution 11b or the residual drug solution 13b to the lower bottle 12 or the lower layer 14, and the above-mentioned needle base protruding portion 8c. The purpose of the present invention has been achieved by providing the needle base 8 or 15 of the short needle 10 with such a function (temporarily holding the bottle stopper).

As described above, according to one embodiment of the present invention,
When mixing the liquid medicine in the upper and lower bottles, the residual liquid in the upper bottle is transferred to the lower bottle by simply pressing the upper and lower bottles between the needle bases and using a short needle that functions as a liquid needle. Since the bottles communicate with each other, all of the medicinal solutions in the upper and lower bottles can be mixed in the lower bottle very easily.

[Brief explanation of the drawing]

FIG. 1: A side sectional view of a previous embodiment. Figs. 2 1, 2: A side sectional view showing an embodiment of the present invention. 1... Upper bottle, 2... Chemical liquid, 2a... Liquid level,
2b... Residual chemical solution, 3... Lower bottle, 4... Chemical solution, 5... Mixing needle, A... Liquid passage, B... Air passage, 6... Stopper, 7... Needle base, 6a... Bottom surface , 8...
...needle base, 8a...bottle holder, 8b...bottom,
8c...Convex portion, 9...Liquid needle, air needle, 9a...
Blade tip opening, 10...liquid needle, air needle, 10a...blade tip opening, 11...upper bottle, 11a...stopper, 11
b...Medical solution, residual chemical solution, 11c...Liquid level, 12...
...lower bin, 12a...stopper, 13...upper bin,
13a... Stopper, 13b... Chemical solution, residual chemical solution, 13
c...liquid level, 14...lower bottle, 14a...stopper,
15... needle base, 15a... bottle holder, 15b
...Bottom, 15ab...Protrusion, 1,2...Mixed needle.

Claims (1)

[Claims for Utility Model Registration] (1) In a mixed needle having a needle with two passages,
A long needle and a short needle are provided, and the height of the short needle is within one-half of the inner wall of the bottle holder, which is formed vertically symmetrically, and the height of the shorter needle is equal to the height of the inner wall. A liquid medicine mixing needle characterized in that it is configured with a convex part that can temporarily hold a bottle stopper to be stored in position. (2) In the protruding portion that allows the bottle stopper of claim 1 of the utility model registration to be temporarily stopped at the position,
A drug liquid mixing needle characterized in that a bottle holder is formed vertically symmetrically, and has a side wall having a small diameter that is concentric with the inner bottom surface of the bottle holder, and a convex portion is provided at a position half the height of the above.