JPH0415226Y2 - - Google Patents
Info
- Publication number
- JPH0415226Y2 JPH0415226Y2 JP1988159085U JP15908588U JPH0415226Y2 JP H0415226 Y2 JPH0415226 Y2 JP H0415226Y2 JP 1988159085 U JP1988159085 U JP 1988159085U JP 15908588 U JP15908588 U JP 15908588U JP H0415226 Y2 JPH0415226 Y2 JP H0415226Y2
- Authority
- JP
- Japan
- Prior art keywords
- syringe
- needle
- fitting
- barrel
- tip
- 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.)
- Expired
Links
- 238000002347 injection Methods 0.000 claims description 40
- 239000007924 injection Substances 0.000 claims description 40
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、注射器に係わり、特に注射針による
伝染を有効に防止し得る注射器に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a syringe, and more particularly to a syringe that can effectively prevent infection caused by a needle.
〔従来の技術〕
従来、注射による伝染は、しばしば生じるので
注射器の注射針の部分を使い捨てるようにしてこ
のような伝染のルートをできる限り最少に抑える
ようにしている。[Prior Art] Conventionally, since infection by injection often occurs, the needle portion of the syringe is made disposable to minimize this route of infection as much as possible.
しかしながら、上記従来の注射器の注射針を注
射筒の先端より取外し、または取外した注射針を
折る際、看護婦などの医療人員は、よく注射針に
刺されて恐ろしい病気を伝染される。一方、使い
捨てた注射針もよく周りの人に危険性を与え、改
善すべきものであつた。
However, when removing the needle of the conventional syringe from the tip of the syringe barrel or breaking the removed needle, medical personnel such as nurses are often stung by the needle and are infected with deadly diseases. On the other hand, disposable injection needles often pose a danger to those around them and should be improved.
考案者らは、このような公知の注射器の欠点を
改善しようと苦心研究の結果、使用者、或いは非
使用者に病気を伝染させる虞れのない注射器を作
成することに成功したのである。 The inventors have worked hard to improve the shortcomings of known syringes and have succeeded in creating a syringe that does not pose a risk of transmitting disease to users or non-users.
そこで、本考案の目的は、取外す時、または捨
てた後において、使用者、或いは非使用者を刺す
ことがなく、使用者、或いは非使用者の健康安全
を確保することができる前記の公知注射器に存す
る欠点を解決した注射器を提供することにある。 Therefore, the purpose of the present invention is to provide the above-mentioned known syringe that does not sting the user or non-user when removed or after being discarded, thereby ensuring the health safety of the user or non-user. The object of the present invention is to provide a syringe that solves the drawbacks of the above.
前述の目的を達成するため、本考案によれば、
注射筒と、注射針と、注射筒の先端の中空頭部に
取付けた注射針装着部とを有する注射器であつて
上記注射針装着部は、注射針を装着するための先
端部と、注射筒の先端の中空頭部に接続するため
の円筒形基部とを有し；上記円筒形基部の周りに
は、さらに環形突起が突設されてあり、この環形
突起上には、上記基部とほぼ平行した複数個の頂
面がほぼ螺旋状斜面となつている複数個の突部と
隣りの突部の間に配設された複数個の嵌合凹槽と
が形成されてあり；上記注射器は、さらに上記注
射針と注射針装着部とをカバーするためのカバー
筒を有し、該カバー筒は、上記注射筒の前段から
上記注射針と注射針装着部とをカバーできるよう
に前に向つて摺動自在に突出してあり、その内壁
には、上記複数個の嵌合凹槽内に嵌脱自在に嵌合
した嵌合突起が設けてあり、その先端には、カバ
ー筒を後退させる際、上記環形突起に当接するた
めの環形当接部が形成されており；上記カバー筒
を注射筒の後端に向つて後退させる際には、上記
嵌合突起が強制的に上記嵌合凹槽から外に向つて
離脱させてそれが弾性拡張して上記注射筒の外壁
に沿うようにカバー筒を後退することにより注射
針を上記環形当接部の中央孔から露出させること
ができると共に、後退させたカバー筒を元の位置
に復原する際には、上記弾性拡張した嵌合突部を
上記螺旋状斜面に沿つて上記嵌合凹槽内に戻して
それと嵌合することができるようにしたことを特
徴とする。
In order to achieve the above-mentioned objective, according to the present invention,
The syringe has a syringe barrel, a syringe needle, and a syringe needle attachment part attached to a hollow head at the tip of the syringe barrel, and the syringe needle attachment part includes a tip part for attaching the syringe needle, and a syringe barrel. and a cylindrical base for connecting to the hollow head at the tip of the cylindrical base; an annular protrusion is further protruded around the cylindrical base, and on this annular protrusion there is a cylindrical base that is approximately parallel to the base. The syringe includes a plurality of protrusions whose top surfaces are substantially spiral slopes, and a plurality of fitting recesses arranged between adjacent protrusions; Furthermore, it has a cover cylinder for covering the injection needle and the injection needle mounting part, and the cover cylinder extends forward so as to cover the injection needle and the injection needle mounting part from the front stage of the injection barrel. It protrudes slidably, and its inner wall is provided with fitting protrusions that are removably fitted into the plurality of fitting recesses, and the tips thereof are provided with fitting protrusions that, when retracting the cover cylinder, An annular abutting portion is formed for abutting the annular projection; when the cover cylinder is retreated toward the rear end of the syringe barrel, the fitting projection is forcibly removed from the fitting recess. The injection needle can be exposed from the central hole of the annular abutting part by being detached outwardly, elastically expanding, and retracting the cover cylinder along the outer wall of the syringe cylinder, and the needle can also be retracted. When restoring the cover cylinder to its original position, the elastically expanded fitting protrusion can be returned into the fitting recess along the spiral slope and fitted therein. It is characterized by
上記構成にすることにより、上記カバー筒を注
射筒の後端に向つて後退させる場合、上記嵌合突
起が注射筒を経由することにより外に向つて押し
広げられて注射針をカバー筒の先端の中央孔より
露出させ、かつ上記カバー筒を注射針と注射針装
着部をカバーできる元の位置に復原させる場合、
上記嵌合突起がスムーズに注射針装着部の嵌合凹
槽内に進入してそれと嵌合する。
With the above configuration, when the cover barrel is retreated toward the rear end of the syringe barrel, the fitting protrusion passes through the syringe barrel and is pushed outward to move the syringe needle to the tip of the cover barrel. When the cover cylinder is exposed from the center hole of the syringe and the cover cylinder is restored to its original position where it can cover the syringe needle and the syringe needle attachment part,
The fitting protrusion smoothly enters into the fitting recess of the injection needle attachment part and fits therein.
以下、図面に基づいて本考案の実施例を詳述す
る。
Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
第１図及び第２図に示すように、本考案に係わ
る注射器は、注射針装着部１と、注射針１１と、
カバー筒２とを包含するものである。上記注射針
装着部１は、注射針を装着するための先端部１２
と、注射筒３の先端の中空頭部３１に接続するた
めの円筒形基部１３とを有するものである。上記
円筒形基部１３の周りには、環形突起１４が突設
されてあり、この環形突起１４上には、上記基部
１３とほぼ平行した、頂面がほぼ螺旋状斜面１５
１となつている四つの等間隔の突部１５と、隣り
の突部１５の間に位置する嵌合凹槽１６とが形成
されてある。上記カバー筒２は、注射筒３の前段
から上記注射針１１と注射針装着部１２とをカバ
ーできるように前に向つて摺動自在に突出してあ
り、その内壁には、上記複数個の嵌合凹槽１６内
に嵌脱自在に嵌合する嵌合突起２１が設けてあ
り、その先端には、カバー筒２を後退させる際、
上記環形突起１４に当接するための環形当接部２
２が形成されてある。なお、上記カバー筒２の各
嵌合突起２１の付近には、それぞれ嵌合突起２１
の弾性変形を便利にするためのＵ字形スロツト２
３が開けてあり、上記環形当接部２２の中央に
は、中央孔２４が開けてある。また、上記カバー
筒２の内壁と一体した突起２１の表面は、注射筒
３に面する斜面２１１が形成されてある。 As shown in FIGS. 1 and 2, the syringe according to the present invention includes a needle attachment part 1, a needle 11,
This includes a cover cylinder 2. The above-mentioned injection needle attachment part 1 includes a tip part 12 for attaching an injection needle.
and a cylindrical base 13 for connecting to a hollow head 31 at the tip of the syringe barrel 3. An annular protrusion 14 is protruded around the cylindrical base 13, and on the annular protrusion 14 there is a slope 15 whose top surface is substantially parallel to the base 13 and has a substantially helical shape.
1, four equally spaced protrusions 15, and a fitting recess 16 located between adjacent protrusions 15 are formed. The cover barrel 2 is slidably protruded forward from the front stage of the syringe barrel 3 so as to cover the syringe needle 11 and the syringe needle attachment part 12, and has a plurality of fittings on its inner wall. A fitting protrusion 21 that removably fits into the fitting recess 16 is provided at the tip of the fitting protrusion 21.
Annular contact portion 2 for abutting against the annular projection 14
2 is formed. In addition, a fitting protrusion 21 is provided near each fitting protrusion 21 of the cover cylinder 2.
U-shaped slot 2 for convenient elastic deformation of
3 is opened, and a center hole 24 is opened in the center of the annular contact portion 22. Further, the surface of the protrusion 21 that is integrated with the inner wall of the cover cylinder 2 is formed with a slope 211 facing the syringe cylinder 3.
注射針装着部１をカバー筒２と組合わせた状態
では、該注射針装着部１は、該カバー筒２内に内
蔵されてある。この組合わせてなるものを注射筒
３の先端に装着して使用しようとする場合、単に
注射筒３の先端の中空頭部（円錐台形）３１を注
射針装着部１の円筒形基部１３の円錐台形孔内に
挿入することにより、二者を連結して使用できる
状態にする。この状態では、カバー筒２の嵌合突
起２１は、注射針装着部１の嵌合凹槽１６内に嵌
合している。 When the injection needle mounting part 1 is combined with the cover cylinder 2, the injection needle mounting part 1 is housed within the cover cylinder 2. When using this combination by attaching it to the tip of the syringe barrel 3, simply insert the hollow head (truncated conical shape) 31 at the tip of the syringe barrel 3 into the conical shape of the cylindrical base 13 of the needle attachment part 1. By inserting it into the trapezoidal hole, the two are connected and ready for use. In this state, the fitting protrusion 21 of the cover cylinder 2 is fitted into the fitting recess 16 of the injection needle attachment part 1.
第３図及び第４図に示すように、上記カバー筒
２を注射筒３の後端に向つて後退させる際には、
上記嵌合突起２１を強制的に上記嵌合凹槽１６か
ら外に向つて離脱させてそれが弾性拡張して上記
注射筒３の外壁に沿うようにカバー筒２を後退す
ることにより注射針１１を上記環形当接部２２の
中央孔２４から露出させることができる。突当り
まで後退させると、上記環形突起１４が環形当接
部２２に当接して注射針装着部１と注射筒３の頭
部３１との嵌合を確実にすることができる。 As shown in FIGS. 3 and 4, when retracting the cover barrel 2 toward the rear end of the syringe barrel 3,
The injection needle 11 is forcibly disengaged from the fitting recess 16 and elastically expands to move the cover barrel 2 back along the outer wall of the syringe barrel 3. can be exposed through the central hole 24 of the annular abutting portion 22. When retreated to the abutment, the annular projection 14 abuts the annular abutting portion 22 to ensure fitting between the injection needle mounting portion 1 and the head 31 of the syringe barrel 3.
注射針１１が露出すると、注射針１１上のキヤ
ツプ１７を取外すことにより注射針１１を使用で
きる。 Once the injection needle 11 is exposed, the injection needle 11 can be used by removing the cap 17 on the injection needle 11.
また、上記カバー筒２の材料は、ポリカボネー
ト或いはポリスチレンでも良いが、もちろん、嵌
合突起２１に弾性拡張可能な能力を付与できれ
ば、他の弾力性のあるプラスチツク材料でも良
い。 Further, the material of the cover tube 2 may be polycarbonate or polystyrene, but of course, other elastic plastic materials may be used as long as the fitting protrusion 21 can be imparted with the ability to expand elastically.
なお、上記嵌合突起２１の注射筒３に面する斜
面２１１は上記嵌合突起２１の注射筒３の筒壁の
先端による弾性変形を便利にすることができる。 The slope 211 of the fitting protrusion 21 facing the syringe barrel 3 can facilitate elastic deformation of the fitting protrusion 21 by the tip of the cylindrical wall of the syringe barrel 3.
上記注射針１１の露出した状態で注射を行なつ
た後、カバー筒２を注射針１１に向つて前進する
ことにより注射針１１を再びカバー筒２内に内蔵
させることができる。前進するとき、上記各嵌合
突起２１の前進方向がちようど各嵌合凹槽１６に
対応するなら、各嵌合突起２１が直接にそれぞれ
の嵌合凹槽１６内に進入してそれらと嵌合でき
る。もし、上記各嵌合突起２１の前進方向が各嵌
合凹槽１６に対応しないなら、単にカバー筒２を
僅かに回転することにより各嵌合突起２１が突部
１５の螺旋状斜面１５１に沿つて各嵌合凹槽１６
内に進入してそれと嵌合する（第２図の状態）。 After performing the injection with the injection needle 11 exposed, the injection needle 11 can be built into the cover cylinder 2 again by moving the cover cylinder 2 forward toward the injection needle 11. When moving forward, if the advancing direction of each of the fitting protrusions 21 is different and corresponds to each of the fitting recesses 16, each fitting protrusion 21 directly enters into the respective fitting recesses 16 and engages with them. Can be combined. If the advancing direction of each of the fitting protrusions 21 does not correspond to each of the fitting recesses 16, simply rotating the cover tube 2 slightly will cause each of the fitting protrusions 21 to move along the spiral slope 151 of the protrusion 15. Each fitting concave tank 16
and fit into it (as shown in Figure 2).
上記嵌合状態では、カバー筒２をねじつて前進
させれば、それと注射針装着部１と注射針１１と
を一緒に注射筒３の先端から取外すことができ
る。取外した後、注射針装着部１と注射針１１が
内蔵されてあるカバー筒２を捨てても、注射針１
１が外に暴露していないので、人を刺して病気を
伝染させる虞れがない。 In the above-mentioned fitted state, by twisting the cover cylinder 2 and moving it forward, it, the injection needle mounting part 1, and the injection needle 11 can be removed together from the tip of the injection cylinder 3. Even if you throw away the needle mounting part 1 and the cover tube 2 in which the needle 11 is built-in after removing it, the needle 1
1 is not exposed to the outside, so there is no risk of it biting people and transmitting the disease.
以上の通り、本考案によれば、使用者、または
非使用者が汚染された注射針に刺されることがな
いので、人類の健康安全を守ることができる。注
射針装着部と注射筒の中空頭部との嵌合を確実に
行うことができる。
As described above, according to the present invention, a user or a non-user will not be pricked by a contaminated injection needle, thereby protecting human health and safety. The injection needle mounting portion and the hollow head of the injection barrel can be reliably fitted.
カバー筒の嵌合突起と、注射針装着部の嵌合凹
槽とを容易に嵌合させることができる。 The fitting protrusion of the cover cylinder and the fitting recess of the injection needle attachment part can be easily fitted together.
カバー筒をねじつて前進させることにより、カ
バー筒と注射針装着部と注射針とを一緒に注射筒
の先端から容易に取り外すことができる。 By twisting and moving the cover cylinder forward, the cover cylinder, the injection needle attachment part, and the injection needle can be easily removed together from the tip of the injection cylinder.
等の利点がある。There are advantages such as
第１図は、本考案に係わる注射器の先端部分を
示す分解斜視図。第２図は、本考案に係わる注射
器の先端部分を示す断面図。第３図は、本考案に
係わる注射器のカバー筒が後退されて注射できる
状態を示す斜視図。第４図は、第３図の状態を示
す断面図である。
１……注射針装着部、１１……注射針、１２…
…先端部、１３……円筒形基部、１４……環形突
起、１５……突部、１５１……螺旋状斜面、１６
……嵌合凹槽、１７……キヤツプ、２……カバー
筒、２１……嵌合突起、２２……環形当接部、２
３……スロツト、２４……中央孔、３……注射
筒、３１……頭部。
FIG. 1 is an exploded perspective view showing the tip portion of the syringe according to the present invention. FIG. 2 is a sectional view showing the tip portion of the syringe according to the present invention. FIG. 3 is a perspective view showing a state in which the cover barrel of the syringe according to the present invention is retracted and ready for injection. FIG. 4 is a sectional view showing the state of FIG. 3. 1... Syringe needle attachment part, 11... Syringe needle, 12...
... Tip part, 13 ... Cylindrical base, 14 ... Annular projection, 15 ... Projection, 151 ... Spiral slope, 16
... Fitting concave tank, 17... Cap, 2... Cover tube, 21... Fitting projection, 22... Annular contact portion, 2
3...slot, 24...center hole, 3...syringe, 31...head.
Claims (1)
部に取付けた注射針装着部とを有する注射器で
あつて、上記注射針装着部は、注射針を装着す
るための先端部と、注射筒の先端の中空頭部に
接続するための円筒形基部とを有し；上記円筒
形基部の周りには、環形突起が突設されてお
り、この環形突起上には、上記円筒形基部とほ
ぼ平行した複数個の頂面がほぼ螺旋状斜面とな
つている複数個の突部と、隣りの突部の間に配
設された複数個の嵌合凹槽とが形成されてお
り；上記注射器は、上記注射針と注射針装着部
とをカバーするためのカバー筒を有し、該カバ
ー筒は、上記注射筒の前段から上記注射針と注
射針装着部とをカバーできるように前に向つて
摺動自在に突出しており、該カバー筒の内壁に
は、上記複数個の嵌合凹槽内に嵌脱自在に嵌合
した嵌合突起を設けてあり、その先端には、カ
バー筒を後退させる際、上記環形突起に当接す
るための環形当接部が形成されており；上記カ
バー筒を注射筒の後端に向つて後退させる際に
は、上記嵌合突起が強制的に上記嵌合凹槽から
外に向つて離脱させて該嵌合突起が弾性拡張し
て上記注射筒の外壁に沿うようにカバー筒を後
退することにより注射針を上記環形当接部の中
央孔から露出させることができると共に、後退
させたカバー筒を元の位置に復原する際には、
上記弾性拡張した嵌合突部を上記螺旋状斜面に
沿つて上記嵌合凹槽内に戻して該嵌合凹槽と嵌
合することができるようにしたことを特徴とす
る上記注射器。 (2) 上記注射筒の先端の中空頭部が円錐台形に形
成されて、かつ上記円筒形基部の内部には、円
錐台形の穴が形成されていることを特徴とする
請求項(1)に記載の注射器。 (3) 上記注射針に、注射針キヤツプがキヤツプさ
れていることを特徴とする請求項(1)に記載の注
射器。 (4) 上記カバー筒の嵌合突起に近い筒壁上には、
スロツトが開けてあることを特徴とする請求項
(1)ないし(3)のいずれか１に記載の注射器。[Scope of Claim for Utility Model Registration] (1) A syringe comprising a syringe barrel, a syringe needle, and a syringe needle mounting part attached to a hollow head at the tip of the syringe barrel, the needle mount part being It has a tip for attaching a needle and a cylindrical base for connecting to the hollow head at the tip of the syringe barrel; an annular projection protrudes around the cylindrical base; On the annular protrusion, there are a plurality of protrusions that are substantially parallel to the cylindrical base and whose top surfaces are substantially spiral slopes, and a plurality of fittings arranged between adjacent protrusions. The syringe has a cover cylinder for covering the injection needle and the injection needle attachment part, and the cover cylinder covers the injection needle and the injection needle from the front stage of the injection cylinder. The inner wall of the cover cylinder has fitting protrusions that are removably fitted into the plurality of fitting recesses. An annular contact portion is formed at the tip of the annular contact portion for abutting the annular protrusion when the cover barrel is retracted; The injection needle is made by forcibly disengaging the fitting protrusion from the fitting recess outward, and the fitting protrusion elastically expands and retreats the cover barrel along the outer wall of the syringe barrel. can be exposed from the center hole of the annular abutment part, and when restoring the retreated cover cylinder to its original position,
The syringe is characterized in that the elastically expanded fitting protrusion can be returned into the fitting recess along the spiral slope and fitted into the fitting recess. (2) According to claim (1), wherein the hollow head at the tip of the syringe barrel is formed in the shape of a truncated cone, and a hole in the shape of a truncated cone is formed inside the cylindrical base. Syringe as described. (3) The syringe according to claim 1, wherein the syringe needle is capped with a syringe needle cap. (4) On the cylinder wall near the fitting protrusion of the cover cylinder above,
A claim characterized in that the slot is open.
The syringe according to any one of (1) to (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988159085U JPH0415226Y2 (en) | 1988-12-07 | 1988-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988159085U JPH0415226Y2 (en) | 1988-12-07 | 1988-12-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0279950U JPH0279950U (en) | 1990-06-20 |
| JPH0415226Y2 true JPH0415226Y2 (en) | 1992-04-06 |
Family
ID=31439988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988159085U Expired JPH0415226Y2 (en) | 1988-12-07 | 1988-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0415226Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2578256A1 (en) * | 2011-10-06 | 2013-04-10 | Sanofi-Aventis Deutschland GmbH | Needle safety device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758231A (en) * | 1987-04-27 | 1988-07-19 | Habley Medical Technology Corporation | Shielded safety syringe |
-
1988
- 1988-12-07 JP JP1988159085U patent/JPH0415226Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758231A (en) * | 1987-04-27 | 1988-07-19 | Habley Medical Technology Corporation | Shielded safety syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0279950U (en) | 1990-06-20 |
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