JPH0228918Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is useful when preparing an injection by mixing two types of drug solutions or by adding sterile distilled water, etc. to a freeze-dried drug and dissolving it. This invention relates to an injection needle for connecting two liquid medicine bottles and for transferring and mixing the liquid medicine or distilled water in one bottle into the other bottle.

[Background of the idea]

In general, a transfer needle has a bottle spout holder that can be fitted into two bottle spouts, and a needle body provided with two parallel passages is installed penetrating the middle wall of the holder. This transfer needle is usually made by fitting one bottle spout holder into the mouth of one bottle and inserting the needle into the rubber stopper, then holding the other bottle with the rubber stopper side facing downward. By aligning the bottle spout with the upward-opening bottle spout holder, placing the center of the rubber stopper against the tip of the needle, and pushing firmly, both bottles can be joined in the vertical direction. Liquid can flow from the upper bottle to the lower bottle through one of the two parallel passages provided in the needle body, and air within the bottle can be moved from the lower bottle to the upper bottle through the other.

After the necessary drug solution has been mixed in the lower bottle in this way, remove the upper bottle together with the transfer needle from the lower bottle and place it somewhere else, hold the lower bottle with one hand, and Insert the needle of the syringe in your hand into the needle hole, turn the bottle upside down, and use suction to remove it.

However, as mentioned above, the needle body of the transfer needle is thick with two parallel passages, and when it is pulled out, a hole considerably larger than the outer diameter of the injection needle remains. If the bottle is turned upside down when dispensing the drug solution into a syringe, there is a risk that the drug solution may leak or airborne bacteria may enter the bottle, which has become a serious hindrance to medical work. .

In addition, especially in cases where the patient, such as a hemophiliac patient, performs the above-mentioned work with his or her own hands, the upper bottle, which has been removed from the lower bottle together with the transfer needle as described above, has a sharp needle at its opening. Because it remained protruding upward, it was extremely dangerous depending on where it was placed.

[Purpose of invention]

This idea is to solve the above problem,
The purpose of the present invention is to provide a highly safe injection needle that does not leak when taking out a drug solution into a syringe after transfer.

[Structure of the idea]

In order to achieve the above object, this invention installs a tubular body penetratingly in the middle wall of the bottle spout holder, and provides a strip that can pass vertically so as to bisect the passage inside the tubular body, and both ends of the strip. a sharp body having a jaw portion having a diameter larger than the outer diameter of the tubular body and having a flow path communicating with the bisected passage in the liquid passage tube on the outer surface, at least one of which is removable; After transferring, if you leave the bottle opening holder on the lower bottle and remove only the upper bottle,
The sharp objects of the needles fall into both bottles, and only the tubular body without the sharp objects remains in the bottle spout holder, eliminating the danger, and the tubular body of the bottle spout holder remaining in the lower bottle serves as the drug solution outlet. It is configured like this.

〔Example〕

This invention will be described below based on embodiments shown in the accompanying drawings.

In FIG. 1, reference numerals 1 and 2 are bottle spout holders, and the bottle spout holders 1 and 2 each have an inner diameter and a depth that can match the bottle spout of the medicinal liquid bottle to which they are to be connected. In the illustrated example, the bottle spout holders 1 and 2 have the same diameter, but there are ones with different diameters to suit different bottle mouth sizes, and they are configured to accommodate bottle mouths of multiple sizes. Sometimes.

Reference numeral 3 denotes a tubular body installed penetratingly through the middle partition wall 4 of the bottle mouth holders 1 and 2. The tubular body 3 is a part that becomes the body of the needle body 30 as shown in the second figure, and both end surfaces are placed flatly. It is cut off. This tubular body 3 may be integrally molded with the bottle mouth holders 1, 2 and the middle wall 4 from synthetic resin, or may be molded separately and later integrated.

Reference numeral 5 denotes a strip plate that can be passed vertically so as to form two passages 3a and 3b for passing liquid and gas in the tubular body 3, and the width a of the strip plate 5 is equal to the diameter R of the tubular body 3. By making it slightly larger and making both edges triangular in cross section, the two passages 3a and 3b formed when inserted into the tubular body 3 can be divided in a liquid-tight manner, and the length b is smaller than that of the tubular body. It is longer than 3.

Reference numeral 6 denotes a sharp object (hereinafter referred to as "fixed sharp object") fixedly installed at one end of the band plate 5, and the fixed sharp object 6 has a jaw 6a whose diameter is slightly larger than the outer diameter of the tubular body 3. , the outer surface thereof is provided with a flow path 6b for communicating with the bisected passages 3a and 3b inside the tubular body 3.

Reference numeral 7 denotes a sharp object (hereinafter referred to as "non-fixed sharp object") having a recessed hole 8 that can be detachably installed at the other end of the band plate 5, and the non-fixed sharp object 7 is similar to the fixed sharp object 6.
It has a jaw part 7a and a flow path 7b similar to the above.

These fixed and non-fixed sharp bodies 6 and 7 serve as the tip of the needle body 30 as shown in the second figure.

Note that the jaws 6a of the fixed and non-fixed sharp bodies 6, 7,
The reason why the diameter of 7b is made slightly larger than the outer diameter of the tubular body 3 is that the needle body 30 is inserted into the rubber stoppers 111 and 112 fitted into the mouths of the liquid medicine bottles 101 and 102, and after joining both bottles, one of the bottles is inserted. This is so that when the bottle is removed leaving the bottle spout holder 1 on the other bottle, it can be locked to both rubber stoppers.

Furthermore, in the illustrated example, the fixed and non-rigid sharp bodies 6 and 7 are composed of a plurality of vanes arranged radially, and the spaces between the vanes form a conical body with flow passages 6b and 7b. It is also possible to form a simple cone-like body and have a through hole extending from the conical surface to the bottom surface to form a flow path.

In the above embodiment, the strip plate 5 having the fixed sharp object 6 installed at one end is inserted into the tubular body 3 through which the middle partition wall 4 of the bottle mouth holders 1 and 2 is provided, from the other end. By fitting the non-fixed sharp object 7 to the other end of the strip plate 5 protruding from the tube end, the needle body 30 can be constructed as having two parallel passages 3a and 3b as shown in the second figure. Therefore, after inserting the needle body 30 into the rubber stopper 111 while fitting one bottle spout holder 1 into the bottle spout of one medicine liquid bottle 101 as shown in FIG. Place the bottle with the rubber stopper side facing downward, and fit it into the bottle opening holder 2 that opens upward, and then insert the needle body 30.
By placing the center of the rubber stopper 112 on the tip of the bottle and pushing it firmly, both bottles 101 and 102 can be joined in the vertical direction. The liquid flows down from the upper bottle to the lower bottle through one of the two parallel passages 3a and 3b partitioned by the strip plate 5 in the needle body 30, and the air inside the bottle moves from the lower bottle to the upper bottle through the other. You will get it.

In this way, all of the liquid in the upper bottle 102 flows down to the lower bottle 101, and after the prescribed mixing is completed, the liquid in the upper bottle 102 is
is removed as shown in FIG. 4A, the non-fixed sharp object 7 gets caught in the rubber stopper 111 of the lower bottle 101 and falls into the bottle, and the fixed sharp object 6 gets caught in the rubber stopper 112 of the removed upper bottle 102. Once it gets stuck, it will be removed along with the bottle. Therefore, the bottle mouth holders 1 and 2 and the tubular body 3, which is the body of the needle body 30, remain in the lower bottle, and as shown in FIG. By inserting the bottle into the syringe, inverting the bottle, and sucking, the liquid inside the bottle can be taken out into the syringe without leaking.

In addition, in the above explanation, a case was shown in which the non-fixed sharp object 7 falls into the lower bottle and the fixed sharp object 6 is removed together with the removed upper bottle. It is also possible to use it so that it falls into the bottle and the non-fixed sharp object 7 is removed together with the removed top bottle.

Further, in the above embodiment, the fixed sharp object 6 is installed at one end of the strip plate 5, and the non-fixed sharp object 7 is installed at the other end, but both may be non-fixed sharp objects. Of course.

[Effect of idea]

As explained above, in this invention, a tubular body is installed penetratingly through the middle partition wall of the bottle mouth holder, and a strip plate that can be passed vertically so as to bisect the passage inside the tubular body is provided.
At least one of the sharp bodies having jaws having a diameter larger than the outer diameter of the tubular body at both ends of the strip plate and having a flow path communicating with the bisected passage in the tubular body on the outer surface can be extracted. Because it is characterized by being installed at
When one bottle is removed after the transfer is completed, the sharp part of the needle body is removed at the same time, making it highly safe and allowing patients such as hemophiliacs to use it with confidence. Since the liquid inside the bottle can be drawn into the syringe using the body of the needle, there is no possibility of liquid leakage, and various other excellent effects can be achieved.

[Brief explanation of the drawing]

The figures show one embodiment of this invention, with Fig. 1 being an exploded perspective view, Fig. 2 being a sectional view of the assembled state, Fig. 3 A and B being explanatory drawings showing the transfer work state, and Fig. 4 A ，
B is an explanatory diagram showing the effect after transfer. 1, 2... Bottle mouth holder, 3... Tubular body, 3
a, 3b...Passway, 4...Intermediate partition wall, 5...Strip plate, 6...Fixed sharp body, 7...Non-fixed sharp body, 6
a, 7a... Jaw portion, 6b, 7b... Channel.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A tubular body is installed in the middle partition wall of the bottle mouth holder in a penetrating manner, a strip plate that can be passed vertically so as to bisect the passage inside the tubular body, and both ends of the strip plate are provided. A sharp body having a jaw having a diameter larger than the outer diameter of the tubular body and having a flow path communicating with the bisected passage in the tubular body on the outer surface is installed in the tubular body so that at least one of the sharp bodies can be extracted. Characteristic transfer needle. (2) The transfusion needle according to claim 1, wherein the sharp body is a cone-shaped body having radial vanes and a flow path between the vanes. (3) The transfusion needle according to claim 1, wherein the pointed body is provided with a through hole penetrating from the conical surface to the bottom surface of the conical body as a flow path.