JPH0268072A - Injection device - Google Patents
Injection deviceInfo
- Publication number
- JPH0268072A JPH0268072A JP63219534A JP21953488A JPH0268072A JP H0268072 A JPH0268072 A JP H0268072A JP 63219534 A JP63219534 A JP 63219534A JP 21953488 A JP21953488 A JP 21953488A JP H0268072 A JPH0268072 A JP H0268072A
- Authority
- JP
- Japan
- Prior art keywords
- syringe body
- tip
- opening
- locking
- hub
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims description 25
- 239000007924 injection Substances 0.000 title claims description 25
- 230000001012 protector Effects 0.000 abstract description 7
- 238000011282 treatment Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 208000030507 AIDS Diseases 0.000 description 2
- 208000035049 Blood-Borne Infections Diseases 0.000 description 2
- 208000006454 hepatitis Diseases 0.000 description 2
- 231100000283 hepatitis Toxicity 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000011017 operating method Methods 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、使用後にプロテクターを使用することなく医
療用針を保護でき°る注射装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an injection device that can protect a medical needle after use without using a protector.
［従来の技術］
従来の注射装置は、第４図に示すようにシリンジ本体ｌ
と、先端にガスケット２が取着された押子３を有し、シ
リンジ本体ｌの基端開口より内部へ押子３の先端に取着
されたガスケット２を全周密着するように押込んでなる
シリンジＡと、針管４及び該針管４の基端を支持すると
ともに前記シリンジ本体ｌの先端開口部に被嵌されるハ
ブ５からなる医療用針Ｂを備えてなるものであり、使用
後は、針管４に図示しないプロテクターを被せて廃棄し
ていた。[Prior Art] A conventional injection device has a syringe body l as shown in FIG.
It has a pusher 3 with a gasket 2 attached to its tip, and the gasket 2 attached to the tip of the pusher 3 is pushed into the interior from the proximal opening of the syringe body l so as to be in close contact with the entire circumference. It comprises a syringe A, a medical needle B consisting of a needle tube 4 and a hub 5 that supports the proximal end of the needle tube 4 and is fitted into the distal opening of the syringe body l, and after use, The needle tube 4 was covered with a protector (not shown) and disposed of.
該廃棄の際に、針先をプロテクターの小さい開口部に位
置させることは以外と難しく針先をプロテクターの開口
部より外してしまうと、針先で指等を誤って刺してしま
うことがあり、これがためにエイズや肝炎等の血液感染
の事故が発生しており、該使用済の注射装置の廃棄をい
かに安全に行えるようにするかが問題となっている。At the time of disposal, it is extremely difficult to position the needle tip in the small opening of the protector, and if the needle tip is removed from the protector opening, the needle tip may accidentally prick your finger, etc. This has led to incidents of blood-borne infections such as AIDS and hepatitis, and the question is how to safely dispose of used injection devices.
本発明は、使用後にプロテクターを使用することなく医
療用針の針先を保護できる注射装置を提供することを目
的としている。An object of the present invention is to provide an injection device that can protect the tip of a medical needle after use without using a protector.
また本発明は、使用後に医療用針に手を触れることなく
医療用針を保護操作ができる注射装置を提供することを
目的としている。Another object of the present invention is to provide an injection device in which a medical needle can be protected and operated without touching the needle after use.
さらにまた本発明は、使用後に医療用針をシリンジ本体
内に収容保護できる注射装置を提供することを目的とし
ている。A further object of the present invention is to provide an injection device in which a medical needle can be housed and protected within a syringe body after use.
［課題を解決するための手段コ
本発明の注射装置は、第１図（ａ）に示すように、
シリンジ本体１と、先端にガスケット２が取着された押
子３を有し、シリンジ本体１の基端開口より内部へ押子
３の先端に取着されたガスケット２を全周密着するよう
に押込んでなるシリンジＡと、
針管４及び該針管４の基端を支持するとともに前記シリ
ンジ本体１の先端開口部に取着される／＼ブ５からなる
医療用針Ｂとを備えてなる注射装置において、
前記シリンジ本体１の先端開口部１１の内径が開口先端
より開口内端にわたり均一径であり、かつ該シリンジ本
体１の先端開口部１１の内径に前記ハブ５の外径が対応
して嵌着されており、さらに、前記シリンジ本体ｌの先
端開口部１ａの内面に互いに係合する係止用凹部６と係
止用突起７の中の一方が形成されているとともに、該係
止用凹部６と該係止用突起７の中の他方が、前記／＼ブ
５の外面に形成されていることを特徴とするものである
。[Means for Solving the Problems] As shown in FIG. 1(a), the injection device of the present invention has a syringe body 1 and a pusher 3 having a gasket 2 attached to its tip. A syringe A, which is formed by pushing a gasket 2 attached to the tip of a pusher 3 into the inside from the proximal opening of the proximal end of the syringe A, so as to be in close contact with the entire circumference; In the injection device, the inner diameter of the tip opening 11 of the syringe body 1 is uniform from the tip of the opening to the inner end of the opening. and the outer diameter of the hub 5 is fitted so as to correspond to the inner diameter of the tip opening 11 of the syringe body 1, and the hub 5 is further engaged with the inner surface of the tip opening 1a of the syringe body 1. One of the locking recess 6 and the locking projection 7 is formed, and the other of the locking recess 6 and the locking projection 7 is formed on the outer surface of the /\b 5. It is characterized by the fact that
従って、使用後は第１図（ｂ）に示すように、押子３を
引抜き方向に移動して針管４を鉄板等の硬いものＰに突
立てシリンジ本体１を突刺し方向に強引に移動して、第
１図（ｃ）に示すように、係止用凹部６と係止用突起７
の係合を離脱して医療用針Ｂをシリンジ本体ｌ内に押込
み、この状態で廃棄するものである。Therefore, after use, as shown in Fig. 1(b), move the pusher 3 in the pulling direction, stick the needle tube 4 against a hard object P such as an iron plate, and forcibly move the syringe body 1 in the sticking direction. As shown in FIG. 1(c), the locking recess 6 and the locking protrusion 7
The medical needle B is pushed into the syringe body 1 by disengagement, and is discarded in this state.
［第一実施例会ｅ・第１図（ａ）、（ｂ）、（Ｃ） ・
番・請求項り、２に対応している。］
この注射装置は、第１図（ａ）に示すように、シリンジ
Ａに医療用針Ｂを取着してなり、シリンジＡは、シリン
ジ本体１及び先端にガスケット２が取着された押子３を
有し、シリンジ本体１の基端開口より内部へ押子３の先
端に取着されたガスケット２を全周密着するように押込
んでなり、医療用針Ｂは、針管４及び該針管４の基端を
支持するとともに前記シリンジ本体ｌの先端開口部１ａ
に取着されるハブ５からなる。 前記シリンジ本体ｌの
先端開口部１ａの内径が開口先端より開口内端にわたり
均一径であり、かつ該シリンジ本体１の先端開口部１ａ
の内径に前記ハブ５の外径が対応して嵌着されており、
さらに、シリンジ本体ｌの先端開口部１ａの内面に互い
に係合する係止用四部６が形成されているとともに、ハ
ブ５の外面に係止用突起７が形成され、該係止用凹部６
と該係止用突起７が係合されている。該係止用凹部６は
、シリンジ本体１の先端開口部１ａの内面に周方向に形
成された係止用環状凹部であり、また該係止用突起７は
、ハブ５の外面に周方向に形成された係止用環状突起で
ある。[First Practical Meeting e・Figure 1 (a), (b), (C) ・
This corresponds to number/claim number/claim number/2. ] As shown in FIG. 1(a), this injection device consists of a syringe A with a medical needle B attached to it, and the syringe A includes a syringe body 1 and a pusher having a gasket 2 attached to its tip. 3, the medical needle B is formed by pushing the gasket 2 attached to the tip of the pusher 3 into the inside from the proximal opening of the syringe main body 1 so as to tightly contact the entire circumference. while supporting the proximal end of the syringe main body l.
It consists of a hub 5 attached to. The inner diameter of the tip opening 1a of the syringe body 1 is uniform from the tip of the opening to the inner end of the opening, and the tip opening 1a of the syringe body 1 is a uniform diameter.
The outer diameter of the hub 5 is fitted in correspondence with the inner diameter of the hub 5,
Furthermore, four locking parts 6 that engage with each other are formed on the inner surface of the tip opening 1a of the syringe body l, and a locking protrusion 7 is formed on the outer surface of the hub 5, and the locking recess 6 is formed on the outer surface of the hub 5.
and the locking protrusion 7 are engaged with each other. The locking recess 6 is a locking annular recess formed circumferentially on the inner surface of the tip opening 1a of the syringe body 1, and the locking protrusion 7 is formed circumferentially on the outer surface of the hub 5. This is a locking annular projection formed.
従って、使用後は第１図（ｂ）に示すように、押子３を
引抜き方向に移動してガスケット２をシリンジ本体１の
基端寄りに位置させてシリンジ内部空間の長さを医療用
針Ｂの長さよりも大きくなるように確保してから、針管
４を鉄板等の硬いものＰに垂直に当てて突刺す方向にシ
リンジ本体ｌを強く移動すれば、シリンジ本体ｌの先端
開口部１ａの内径が開口先端より開口内端にわたり均一
径であり、かつ該シリンジ本体ｌの先端開口部ｌａの内
径に前記ハブ５の外径が対応して嵌着されており、その
上に係止用凹部６と係止用突起７が係合しているから、
第１図（Ｃ）に示すように。Therefore, after use, as shown in FIG. 1(b), the pusher 3 is moved in the pulling direction to position the gasket 2 near the proximal end of the syringe body 1, and the length of the internal space of the syringe is adjusted to the length of the medical needle. After ensuring that the length of B is greater than the length of B, if you apply the needle tube 4 vertically to a hard object P such as an iron plate and move the syringe body l forcefully in the piercing direction, the tip opening 1a of the syringe body l The inner diameter is uniform from the tip of the opening to the inner end of the opening, and the hub 5 is fitted with an outer diameter corresponding to the inner diameter of the tip opening la of the syringe body l, and a locking recess is provided thereon. 6 and the locking protrusion 7 are engaged,
As shown in FIG. 1(C).
係止用凹部６と係止用突起７の係合を離脱させて医療用
針Ｂをシリンジ本体ｌ内に押込むことができ、この状態
で廃棄するものである。The medical needle B can be pushed into the syringe body 1 by disengaging the locking recess 6 and the locking protrusion 7, and is discarded in this state.
［第二実施例・・・第２図・・・請求項１．３に対応し
ている。］
この実施例の注射装置は、以下の点において上記第一実
施例と相違している。[Second embodiment...FIG. 2...corresponds to claim 1.3. ] The injection device of this embodiment differs from the first embodiment described above in the following points.
ハブ５の外面に周方向に形成された係止用環状凹部６が
あり、シリンジ本体１の先端開口部１ａの内面に周方向
に形成された係止用環状突起７がある。There is a locking annular recess 6 formed in the circumferential direction on the outer surface of the hub 5, and a locking annular protrusion 7 formed in the circumferential direction on the inner surface of the tip opening 1a of the syringe body 1.
［第三実施例り・・第３図・・・請求項１．４に対応し
ている。］
この実施例の注射装置は、以下の点において上記第一実
施例と相違している。[Third Embodiment...FIG. 3] Corresponds to claim 1.4. ] The injection device of this embodiment differs from the first embodiment described above in the following points.
シリンジ本体ｌの先端開口部１ａの内面に、開口先端よ
り軸方向に中途まで延びた軸方向溝部８１と、周方向に
延びていて一端が軸方向溝部６１の内端と一致し他端が
一段深く凹んでいるロック用凹部６３を有する周方向に
延びた周方向溝部８２とからなるＬ形の係止用凹部６が
ある。On the inner surface of the tip opening 1a of the syringe body l, there is an axial groove 81 that extends halfway in the axial direction from the opening tip, and an axial groove 81 that extends in the circumferential direction, one end of which coincides with the inner end of the axial groove 61, and the other end of which extends halfway in the axial direction. There is an L-shaped locking recess 6 consisting of a deeply recessed locking recess 63 and a circumferential groove 82 extending in the circumferential direction.
またハブ５の外面の周方向溝部Ｂ２に対応する位置に形
成されたダボ形の係止用突起７がある。Further, there is a dowel-shaped locking protrusion 7 formed on the outer surface of the hub 5 at a position corresponding to the circumferential groove B2.
従って、ハブ５をシリンジ本体ｌの先端開口部ｌａにＬ
字形に移動して嵌入されており、ハブ５とシリンジ本体
ｌの先端開口部１ａの嵌合が容易に行える。Therefore, the hub 5 is inserted into the tip opening la of the syringe body l.
The hub 5 and the tip opening 1a of the syringe body 1 can be easily fitted together.
第二実施例と第三実施例も、第一実施例と同様に、押子
を引抜き方向に移動してシリンジ内部空間の長さを医療
用針の長さよりも大きくなるように確保してから、針管
を鉄板等の硬いものに突立ててシリンジ本体を突刺す方
向に移動し、医療用針をシリンジ本体内に押込み、廃棄
するものである。In the second and third embodiments, similarly to the first embodiment, the pusher is moved in the pulling direction to ensure that the length of the syringe internal space is larger than the length of the medical needle. , the needle tube is thrust into a hard object such as an iron plate, moved in the direction of piercing the syringe body, the medical needle is pushed into the syringe body, and then discarded.
［効果］
以上説明してきた本発明の注射装置によれば、シリンジ
本体の先端開口部内にハブがテーパー嵌合やねじ結合で
なくストレートに嵌合しており、かつシリンジ本体の先
端開口部の内面とハブの外面間に設けた対の係止用凹部
と係止用突起が係合した構成なので、
使用後は、押子を引抜き方向に移動しシリンジ内部空間
を大きく確保してから、針管を鉄板等の硬いものに突立
てて突刺す方向にシリンジ本体を強く移動すれば医療用
針をシリンジ内部空間に押込むことができる。[Effects] According to the injection device of the present invention described above, the hub fits straight into the tip opening of the syringe body, rather than through tapered fitting or screw connection, and the hub fits into the tip opening of the syringe body in a straight manner. Since the pair of locking recesses provided between the outer surface of the hub and the locking protrusion engage with each other, after use, move the pusher in the withdrawal direction to secure a large space inside the syringe, and then remove the needle tube. The medical needle can be pushed into the internal space of the syringe by strongly moving the syringe body in the direction of piercing a hard object such as an iron plate.
従って、使用後にプロテクターを使用することなく、ま
た医療用針に手を触れることなく医療用針をシリンジ本
体内に収容保護でき、初期の目的を達成できる。Therefore, the medical needle can be housed and protected within the syringe body without using a protector or touching the medical needle after use, and the initial purpose can be achieved.
もって、本発明の注射装置は、使用後の針先の保護を極
めて容易に行うことができ、廃棄が安全に行えるから、
エイズや肝炎等の血液感染の事故の発生を回避するため
に有用である。Therefore, the injection device of the present invention can extremely easily protect the needle tip after use and can be safely disposed of.
It is useful for avoiding the occurrence of blood-borne infections such as AIDS and hepatitis.
第１図（ａ）、（ｂ）、（Ｃ）は、本発明の注射装置の
第一実施例に係るものであって、使用済の注射装置を針
先の保護を図るための操作手順を示す縦断面図である。
第２図は１本発明の注射装置の第二実施例に係る要部縦
断面図である。
第３図は、本発明の注射装置の第三実施例に係る要部縦
断面図である。
第４図は、従来の注射装置の縦断面図である。
Ａ 拳
Ｂ −
Ｐ Φ
ｅ
ａ
２拳
３・
４・
５・
６・
６１争
Ｂ２・
８３・
７壷
・シリンジ、
働医療用針、
・鉄板等の固いもの゛、
・シリンジ本体、
・番先端開口部、
・ガスケット、
拳押子。
・針管、
・ハブ、
・係止用凹部、
ｅ軸方向溝部、
・周方向溝部、
・ロック用凹部
・係止用突起、
第１図
第２図FIGS. 1(a), (b), and (C) are related to the first embodiment of the injection device of the present invention, and show the operating procedure for protecting the needle tip of the used injection device. FIG. FIG. 2 is a longitudinal cross-sectional view of a main part of a second embodiment of the injection device of the present invention. FIG. 3 is a longitudinal sectional view of a main part of a third embodiment of the injection device of the present invention. FIG. 4 is a longitudinal sectional view of a conventional injection device. A fist B - P Φ e a 2 fists 3, 4, 5, 6, 61 B2, 83, 7 Jars/syringes, medical needles, ・Hard objects such as iron plates, ・Syringe body, ・Bun tip opening・Gasket, fist pusher.・Needle tube, ・Hub, ・Locking recess, e-axial groove, ・Circumferential groove, ・Lock recess/locking protrusion, Fig. 1 Fig. 2
Claims (4)
押子を有し、シリンジ本体の基端開口より内部へ押子の
先端に取着されたガスケットを全周密着するように押込
んでなるシリンジと、 針管及び該針管の基端を支持するとともに前記シリンジ
本体の先端開口部に取着されるハブからなる医療用針と
を備えてなる注射装置において、前記シリンジ本体の先
端開口部の内径が開口先端より開口内端にわたり均一径
であり、かつ該シリンジ本体の先端開口部の内径に前記
ハブの外径が対応して嵌着されており、さらに、前記シ
リンジ本体の先端開口部の内面に互いに係合する係止用
凹部と係止用突起の中の一方が形成されているとともに
、該係止用凹部と該係止用突起の中の他方が、前記ハブ
の外面に形成されていることを特徴とする注射装置。(1) It has a syringe body and a pusher with a gasket attached to the tip, and the gasket attached to the tip of the pusher is pushed into the inside of the syringe body from the proximal opening so that it is in close contact with the entire circumference. In an injection device comprising a syringe and a medical needle consisting of a needle tube and a hub that supports the proximal end of the needle tube and is attached to the tip opening of the syringe body, the inner diameter of the tip opening of the syringe body is has a uniform diameter from the tip of the opening to the inner end of the opening, and is fitted so that the outer diameter of the hub corresponds to the inner diameter of the opening of the tip of the syringe body, and the inner surface of the opening of the tip of the syringe body One of the locking recess and the locking protrusion that engage with each other is formed on the outer surface of the hub, and the other of the locking recess and the locking protrusion is formed on the outer surface of the hub. An injection device characterized by:
部の内面に周方向に形成された係止用環状凹部であり、
前記係止用突起は、前記ハブの外面に周方向に形成され
た係止用環状突起である請求項１に記載の注射装置。(2) the locking recess is a locking annular recess formed in the circumferential direction on the inner surface of the distal end opening of the syringe body;
The injection device according to claim 1, wherein the locking projection is a locking annular projection formed in the circumferential direction on the outer surface of the hub.
成された係止用環状凹部であり、前記係止用突起は、前
記シリンジ本体の先端開口部の内面に周方向に形成され
た係止用環状突起である請求項１に記載の注射装置。(3) The locking recess is a locking annular recess formed circumferentially on the outer surface of the hub, and the locking protrusion is formed circumferentially on the inner surface of the tip opening of the syringe body. The injection device according to claim 1, wherein the injection device is a locking annular projection.
部の内面に、開口先端より軸方向に中途まで延びた軸方
向溝部と、周方向に延びていて一端が軸方向溝部の内端
と一致し他端が一段深く凹んでいるロック用凹部を有す
る周方向に延びた周方向溝部とからなるＬ形の係止用凹
部であり、前記係止用突起は、前記ハブの外面の前記周
方向溝部に対応する位置に形成されてなる係止用環状突
起である請求項１に記載の注射装置。(4) The locking recess has an axial groove extending halfway in the axial direction from the opening tip on the inner surface of the tip opening of the syringe body, and an axial groove extending in the circumferential direction and having one end at the inner end of the axial groove. and a circumferential groove portion extending in the circumferential direction having a locking recess portion that coincides with the locking recess portion and the other end is recessed one step deeper, and the locking protrusion is arranged in the outer surface of the hub. The injection device according to claim 1, which is a locking annular projection formed at a position corresponding to the circumferential groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63219534A JPH0268072A (en) | 1988-09-01 | 1988-09-01 | Injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63219534A JPH0268072A (en) | 1988-09-01 | 1988-09-01 | Injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0268072A true JPH0268072A (en) | 1990-03-07 |
Family
ID=16736990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63219534A Pending JPH0268072A (en) | 1988-09-01 | 1988-09-01 | Injection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0268072A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014014703A (en) * | 2006-01-31 | 2014-01-30 | Smiths Medical Asd Inc | Injection needle hub and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01145073A (en) * | 1987-11-30 | 1989-06-07 | Sagami Tsushin Kogyo Kk | Syringe |
| JPH021288A (en) * | 1987-01-12 | 1990-01-05 | Walter W Gloyer | Cover needle discarding type nonpollution free hypodermic injector |
| JPH0211164A (en) * | 1988-04-13 | 1990-01-16 | Habley Medical Technol Corp | Injector |
-
1988
- 1988-09-01 JP JP63219534A patent/JPH0268072A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH021288A (en) * | 1987-01-12 | 1990-01-05 | Walter W Gloyer | Cover needle discarding type nonpollution free hypodermic injector |
| JPH01145073A (en) * | 1987-11-30 | 1989-06-07 | Sagami Tsushin Kogyo Kk | Syringe |
| JPH0211164A (en) * | 1988-04-13 | 1990-01-16 | Habley Medical Technol Corp | Injector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014014703A (en) * | 2006-01-31 | 2014-01-30 | Smiths Medical Asd Inc | Injection needle hub and system |
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