JPH0347273A - Three-way cock - Google Patents
Three-way cockInfo
- Publication number
- JPH0347273A JPH0347273A JP1118265A JP11826589A JPH0347273A JP H0347273 A JPH0347273 A JP H0347273A JP 1118265 A JP1118265 A JP 1118265A JP 11826589 A JP11826589 A JP 11826589A JP H0347273 A JPH0347273 A JP H0347273A
- Authority
- JP
- Japan
- Prior art keywords
- syringe
- base
- cylindrical part
- parts
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 abstract description 27
- 238000002347 injection Methods 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 6
- 230000002265 prevention Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036512 infertility Effects 0.000 description 2
- 229940121896 radiopharmaceutical Drugs 0.000 description 2
- 239000012217 radiopharmaceutical Substances 0.000 description 2
- 230000002799 radiopharmaceutical effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/223—Multiway valves
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Valve Housings (AREA)
- Multiple-Way Valves (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は三方活栓、更に詳細には液体の流れを一系統又
は二系統に選択的に制御するために用いられる三方活栓
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a three-way stopcock, and more particularly to a three-way stopcock used to selectively control the flow of liquid into one or two routes.
従来、三方活栓は三方向に開口部を有する分枝筒体内部
に、三方向に開口する内部連通流路を有する回転栓体を
挿置せしめて構成されていた。Conventionally, a three-way stopcock has been constructed by inserting a rotary stopper body having an internal communication channel opening in three directions into a branched cylinder body having openings in three directions.
而して、注射液が予め封入されたゴム栓付きカートリッ
ジ型注射シリンジを用い、三方活栓を介して他の注射剤
（生理食塩液等）と共に注射液を患者に投与する場合に
於て、従来の三方活栓を用いるときは、当該カートリッ
ジ型注射シリンジのゴム栓を穿刺する注射針及び三方活
栓との嵌合筒部を備えた三方活栓用接続アダプターが必
要であった。Therefore, when using a cartridge-type injection syringe with a rubber stopper in which the injection solution is pre-filled, the injection solution is administered to the patient together with other injections (physiological saline, etc.) via the three-way stopcock. When using a three-way stopcock, a three-way stopcock connection adapter was required, which included an injection needle that pierced the rubber stopper of the cartridge-type injection syringe and a cylindrical portion that fit with the three-way stopcock.
そのため、そもそも当該アダプターの煩瑣な接続操作を
免れ得ないと共に、接続操作時に於ける無菌性の保持は
甚だ因難なことであった。また、当該アダプターの存在
の故に三方活栓のコック操作が不安定となり、該操作の
際アダプターが離脱し易いと云う難点もあり、更には当
該アダプターと三方活栓との接続部分の隙間に注射液が
往々にし残留してしまうと云うロスも看過し得ない問題
点となっていた。Therefore, in the first place, the complicated connection operation of the adapter cannot be avoided, and it is extremely difficult to maintain sterility during the connection operation. In addition, due to the presence of the adapter, the operation of the three-way stopcock becomes unstable, and the adapter easily comes off during this operation.Furthermore, the injection liquid may leak into the gap between the connection part of the adapter and the three-way stopcock. The loss of money that often ends up being left behind was also a problem that could not be overlooked.
特に、斯かる欠点は注射液が放射性医薬品の場合、放射
線被爆や放射嶽汚染を招く直接の原因となるものであっ
て、その改善は当業者のみならず患者の等しく切望する
ところであった。In particular, when the injection solution is a radiopharmaceutical, such drawbacks are a direct cause of radiation exposure and radiation contamination, and improvement thereof has been desired not only by those skilled in the art but also by patients.
斯かる実状に於て、本発明者は従来の如き三方活栓用接
続アダプターを要することなく、直接カートリッジ型注
射シリンジに装着し得る三方活栓を提供すべく種々研究
を重ねた結果、本発明三方活栓を完成したものである。Under these circumstances, the present inventor has conducted various studies to provide a three-way stopcock that can be directly attached to a cartridge-type injection syringe without requiring a conventional three-way stopcock connection adapter, and as a result, has developed the three-way stopcock of the present invention. This is the completed version.
すなわち、本発明は一系統の液体注入口と一系統の液体
注出口を有し、液体の流れを一系統又は一系統に選択的
に制御する三方活栓に於て、当該液体注入口の一方に注
射針を連通突設せしめたことを特徴とする三方活栓であ
る。That is, the present invention provides a three-way stopcock that has one system of liquid inlet and one system of liquid outlet and selectively controls the flow of liquid to one system or one system. This is a three-way stopcock characterized by a syringe needle provided in a protruding manner.
以下一実施例を示す図面と共に本発明を更に説明する。 The present invention will be further explained below with reference to the drawings showing one embodiment.
■は分枝筒体で、基筒部１１と、その外側壁の三方向に
突設せられた注射シリンジ等の接続用嵌合筒部１２とに
より構成せられ、当該嵌合筒部１２の内底部にあたる基
筒部１１側壁１１ａにそれぞれ液体注入口をなす開口部
ＰＩ、Ｐ２及び液体注出口をなす開口部Ｐ３が形設せら
れているものである。尚、基筒部１．１と嵌合筒部１２
とは別体として成形したものを接合−法化しても良いが
、例えば合成樹脂等による一体成形するのが簡便であり
、また漏液防止性の点で有利である。3 is a branched cylinder, which is composed of a base cylinder part 11 and a fitting cylinder part 12 for connecting an injection syringe, etc., protruding in three directions on the outer wall of the base cylinder part 11; Openings PI and P2, which serve as liquid inlets, and openings P3, which serve as liquid outlet, are formed in the side wall 11a of the base cylinder part 11, which is the inner bottom. In addition, the base cylinder part 1.1 and the fitting cylinder part 12
Although it is possible to form a separate body and join it together, for example, it is easier to integrally mold it from a synthetic resin or the like, and it is advantageous in terms of leakage prevention.
２は注射針で、液体注入口をなす一方の開口部Ｐ１に連
通せしめてその基部を基筒部１１側壁に固定すると共に
、その先端を当該嵌合筒部１２外に突出せしめて設けら
れているものである。尚、注射針２の斯かる突設は、適
宜固定部材２１を注射針基部、換言すれば嵌合筒ｉ’！
Ｂ１２内底部に介在せしめて行なうのが、強度性、漏液
防止性及び注射液の残留ロス防止性の点で有利である。Reference numeral 2 denotes a syringe needle, which is connected to one opening P1 constituting a liquid injection port, has its base fixed to the side wall of the base cylinder part 11, and has its tip projected outside the fitting cylinder part 12. It is something that exists. Incidentally, such a protruding arrangement of the injection needle 2 appropriately connects the fixing member 21 to the injection needle base, in other words, to the fitting tube i'!
It is advantageous to interpose it in the inner bottom of B12 in terms of strength, leakage prevention, and prevention of injection solution loss.
３は回転栓体で、適宜回転により前記基筒部１１の開口
部ＰＩ、Ｐ２及びＰ３に選択的に対応開口する連通流路
３１を内部に有し、基筒部ｌｌ内に回転自在に挿置せら
れているものである。尚、回転栓体３の上部はこれを基
筒部１１上方に突出せしめ、連通流路３１の方向に対応
した三方突出コック部３２を形設すれば、流路の制御操
作性の点で有利である。Reference numeral 3 denotes a rotary stopper, which has a communication channel 31 therein that selectively opens correspondingly to the openings PI, P2, and P3 of the base cylindrical portion 11 by rotating as appropriate, and is rotatably inserted into the base cylindrical portion 11. It is placed there. Incidentally, if the upper part of the rotary plug body 3 is made to protrude above the base cylinder part 11 and a three-way protruding cock part 32 is formed corresponding to the direction of the communication flow path 31, it is advantageous in terms of control operability of the flow path. It is.
本発明三方活栓は以上の如く構成されているので、これ
にカートリッジ型注射シリンジを取り付けるには、単に
当該注射針２にて注射シリンジのゴム栓を穿刺しつつ、
該注射シリンジの先端を嵌合筒部１２内に嵌入するだけ
で、両者の接続が完了する。Since the three-way stopcock of the present invention is constructed as described above, in order to attach a cartridge-type injection syringe to it, simply puncture the rubber stopper of the injection syringe with the injection needle 2, and then
Simply fitting the tip of the injection syringe into the fitting cylinder portion 12 completes the connection between the two.
以上従って、本発明三方活栓を用いれば、これに直接カ
ートリッジ型注射シリンジを極めて容易かつ確実に取り
付けることができるので、従来の如き煩瑣な接続操作を
要する接続アダプターは全く不要となる。Accordingly, by using the three-way stopcock of the present invention, a cartridge-type injection syringe can be directly attached to the three-way stopcock extremely easily and reliably, so that there is no need for a connection adapter that requires complicated connection operations as in the past.
而して、本発明によれば無菌性の保持に優れると共に、
三方活栓のコック操作を安定かつ安全に行なうことがで
き、また注射液の残留ロスもなく、特に注射液が放射性
医薬品の場合に於ける放射線被爆や放射能汚染の防止に
実効を上げることができる。Therefore, according to the present invention, sterility is excellently maintained, and
The three-way stopcock can be operated stably and safely, and there is no residual loss of injection solution, making it particularly effective in preventing radiation exposure and radioactive contamination when the injection solution is a radiopharmaceutical. .
図面は本発明の一実施例を示すもので、第１図はその平
面図、第２図は正面図、第３図は八−Ａ線断面説明図で
ある。
以 上The drawings show one embodiment of the present invention; FIG. 1 is a plan view thereof, FIG. 2 is a front view thereof, and FIG. 3 is a cross-sectional explanatory view taken along line 8-A. that's all
Claims (1)
液体の流れを一系統又は二系統に選択的に制御する三方
活栓に於て、当該液体注入口の一方に注射針を連通突設
せしめたことを特徴とする三方活栓。1. Has two systems of liquid inlets and one system of liquid spouts,
A three-way stopcock for selectively controlling the flow of liquid into one or two systems, characterized in that a syringe needle is provided in communication with one of the liquid inlets.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9419789 | 1989-04-13 | ||
| JP1-94197 | 1989-04-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0347273A true JPH0347273A (en) | 1991-02-28 |
| JP2764432B2 JP2764432B2 (en) | 1998-06-11 |
Family
ID=14103575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1118265A Expired - Fee Related JP2764432B2 (en) | 1989-04-13 | 1989-05-11 | Stopcock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2764432B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0661066A1 (en) * | 1993-12-06 | 1995-07-05 | NIHON MEDI-PHYSICS Co., Ltd. | Sheath for syringe barrel |
| GB2520645A (en) * | 2012-09-20 | 2015-05-27 | Hitachi Ltd | Vehicle body structure |
| JP2019010514A (en) * | 2017-06-30 | 2019-01-24 | バイエル薬品株式会社 | kit |
-
1989
- 1989-05-11 JP JP1118265A patent/JP2764432B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0661066A1 (en) * | 1993-12-06 | 1995-07-05 | NIHON MEDI-PHYSICS Co., Ltd. | Sheath for syringe barrel |
| GB2520645A (en) * | 2012-09-20 | 2015-05-27 | Hitachi Ltd | Vehicle body structure |
| GB2520645B (en) * | 2012-09-20 | 2019-09-04 | Hitachi Ltd | Railway vehicle body structure |
| JP2019010514A (en) * | 2017-06-30 | 2019-01-24 | バイエル薬品株式会社 | kit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2764432B2 (en) | 1998-06-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |