【考案の詳細な説明】
本考案は医療用薬液を混合する混合針に関する
ものである。従前に於て、真空ビンに保存されて
いた抗生物質粉体又は薬液等に蒸留水を注入して
混合する場合は、蒸留水ビンに空気針を注入して
次にビニール細管の両端に注射針を結合した連結
器具の一方の注射針を深く刺通し、次に他方の注
射針を抗生物質粉体又は薬液等を保存しているビ
ンに刺通して、蒸留水を真空ビン内へ吸引移転さ
せて、該薬液と蒸留水は混合する。しかし乍ら、
真空ビン内部にガスが発生した場合にはその真空
ビンの真空度が失なわれて、前記した混合方法で
は、充分に蒸留水を該真空ビン内へ吸引移転させ
ることは困難なことがある。そこで、かかる問題
点を鑑みて、真空又は常圧の場合であつても、薬
液混合の作業が極めて楽にしかも薬液の移転が円
滑に出来る混合針を提供するものである。次に本
考案を一実施例の図面によつて詳細に説明をす
る。第１図は従前の一実施例の側面断面図であ
る。蒸留水１と抗生物質粉体又は薬液等薬剤とを
混合する場合は、蒸留水ビン１ａに空気針３を刺
通して、次にビニール製連結管４の注射針４ａを
ビン１ａに刺通してクランプ４ｂをスイツチ閉に
して該管４の他方の注射針４ｃを真空ビン２ｂへ
刺通する。次にクランプ４ｂのスイツチを開にし
て、蒸留水１をビン２ｂへ吸引移転させる。この
場合に、ビン２ｂが真空度を失なつた分だけ、蒸
留水１を吸引することが出来ない。第２図は本考
案一実施例の側面断面図である。針管５の刃の先
端５ａの側の管壁で、針基６の内側の座面６ａよ
りも低い位置の該管壁に空気導入の穴５ｂを設け
てある。穴５ｂには密接してその部分の針管５の
外周にフイルター７を設けてある。第３図は、第
２図の一使用例の態様を示す側面図である。ビン
８の蒸留水１′を真空ビン９へ移転させ薬剤２′と
混合させる。真空ビン９内のガス１０はビン８内
へ移転すると共に外気は空気導入の穴５ｂから導
入されてビン８内へ移転し蒸留水１′は真空ビン
９へ移転する。以上の様にして、本考案は一実施
例によれば、真空圧又は常気圧のビンであつても
薬液の混合が円滑になされるため空気導入の穴５
ｂを設けて且つフイルター７によつて薬液の流出
を防止している等の特徴を有している。[Detailed Description of the Invention] The present invention relates to a mixing needle for mixing medical liquids. Previously, when injecting distilled water into an antibiotic powder or drug solution stored in a vacuum bottle and mixing it, an air needle was injected into the distilled water bottle, and then a syringe needle was inserted at both ends of a vinyl tube. Deeply pierce one needle of the connecting device with which the The chemical solution and distilled water are mixed. However,
If gas is generated inside the vacuum bottle, the degree of vacuum in the vacuum bottle is lost, and it may be difficult to suction and transfer sufficient distilled water into the vacuum bottle using the mixing method described above. Therefore, in view of these problems, it is an object of the present invention to provide a mixing needle that allows the mixing operation of chemical liquids to be extremely easy and the transfer of chemical liquids to be carried out smoothly even in the case of a vacuum or normal pressure. Next, the present invention will be explained in detail with reference to the drawings of one embodiment. FIG. 1 is a side sectional view of a conventional embodiment. When mixing distilled water 1 and drugs such as antibiotic powder or liquid medicine, first pierce the distilled water bottle 1a with the air needle 3, then pierce the syringe needle 4a of the vinyl connecting tube 4 into the bottle 1a, and then tighten the clamp 4b. The switch is closed and the other injection needle 4c of the tube 4 is inserted into the vacuum bottle 2b. Next, the switch of the clamp 4b is opened to suction and transfer the distilled water 1 to the bottle 2b. In this case, the distilled water 1 cannot be sucked in to the extent that the bottle 2b loses its degree of vacuum. FIG. 2 is a side sectional view of one embodiment of the present invention. An air introduction hole 5b is provided in the tube wall of the needle tube 5 on the side of the blade tip 5a at a position lower than the seat surface 6a inside the needle base 6. A filter 7 is provided on the outer periphery of the needle tube 5 in close contact with the hole 5b. FIG. 3 is a side view showing an aspect of one usage example of FIG. 2. FIG. Distilled water 1' in bottle 8 is transferred to vacuum bottle 9 and mixed with drug 2'. The gas 10 in the vacuum bottle 9 is transferred into the bottle 8, the outside air is introduced from the air introduction hole 5b and transferred into the bottle 8, and the distilled water 1' is transferred to the vacuum bottle 9. As described above, according to one embodiment of the present invention, the air introduction hole 5 allows for smooth mixing of medicinal solutions even in bottles under vacuum pressure or normal pressure.
b, and a filter 7 prevents the chemical solution from flowing out.
【図面の簡単な説明】[Brief explanation of the drawing]
第１図…従前の一実施例の側面断面図。第２図
…本考案の一実施例。第３図…第２図の一使用例
の態様を示す側面断面図。
１，１′……蒸留水、１ａ……ビン、２，２′…
…薬剤、２ａ……真空ビン、３……空気針、４…
…連結管、４ａ，４ｃ……注射針、４ｂ……クラ
ンプ、５……二通路を有した針管、５ａ……刃の
先端、５ｂ……穴、６……針基、６ａ……座、９
……フイルター、８……ビン、９……真空ビン、
１０……ガス。
FIG. 1: A side sectional view of a previous embodiment. Fig. 2: An embodiment of the present invention. FIG. 3: A side sectional view showing an example of use in FIG. 2. 1,1'...distilled water, 1a...bottle, 2,2'...
...Drug, 2a...Vacuum bottle, 3...Air needle, 4...
... Connecting tube, 4a, 4c... Hygiene needle, 4b... Clamp, 5... Needle tube with two passages, 5a... Tip of blade, 5b... Hole, 6... Needle base, 6a... Seat, 9
... Filter, 8 ... Bottle, 9 ... Vacuum bottle,
10...Gas.