JP3123296B2 - Syringe assembly - Google Patents
Syringe assemblyInfo
- Publication number
- JP3123296B2 JP3123296B2 JP05078822A JP7882293A JP3123296B2 JP 3123296 B2 JP3123296 B2 JP 3123296B2 JP 05078822 A JP05078822 A JP 05078822A JP 7882293 A JP7882293 A JP 7882293A JP 3123296 B2 JP3123296 B2 JP 3123296B2
- Authority
- JP
- Japan
- Prior art keywords
- syringe
- injection needle
- outer cylinder
- protector
- needle protector
- 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 - Fee Related
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は誤穿刺防止手段付き注射
器組立体に関し、より詳しくは、注射器から注射針を外
す際などに誤って指などを注射針で刺してしまう所謂誤
穿刺事故を防止するための手段を設けた注射器組立体に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a syringe assembly with puncture prevention means, and more particularly to a so-called puncture accident in which a finger or the like is erroneously pierced with a syringe needle when the syringe needle is removed from the syringe. And a syringe assembly provided with means for performing the following.
【０００２】[0002]
【従来の技術】医療分野においては、注射針や点滴、輸
血用の静脈留置針等、薬液や血液を注入するための医療
用針は使い捨てとするのが一般的であるが、これらの医
療用針を無造作に刃先を剥き出しのまま廃棄することは
危険であることから、従来、刃先を保護するために装着
されていたプロテクターを使用後に再び医療用針に装着
して廃棄している。しかしながら、プロテクターの開口
部が比較的小径であるため、注射針使用後プロテクター
を注射針に装着する際に、医療従事者が誤って注射針で
指を刺してしまうことがあった。そして、このような誤
穿刺事故は、単に医療従事者が肉体的苦痛を伴うだけに
留まらない可能性がある。すなわち、患者の体に刺通し
た後の使用済医療用針は、患者の保有している細菌、ウ
イルス等の病原体が付着している虞があり、このような
使用済医療用針の誤穿刺により健康な医療従事者が病気
に感染してしまう虞がある。2. Description of the Related Art In the medical field, medical needles for injecting a drug solution or blood, such as injection needles, infusions, and venous indwelling needles for transfusion, are generally disposable. Since it is dangerous to discard the needle with the blade edge exposed without any care, the protector, which was conventionally mounted to protect the blade edge, is mounted on the medical needle again after use and disposed. However, since the opening of the protector has a relatively small diameter, when the protector is attached to the injection needle after use of the injection needle, a medical worker may accidentally stab a finger with the injection needle. Such an accidental puncture may not only result in physical pain for the medical staff. That is, there is a possibility that a pathogen such as a bacterium or a virus possessed by the patient may be attached to the used medical needle after penetrating the patient's body. There is a danger that healthy healthcare workers will become infected with the disease.
【０００３】そこで、このような誤穿刺事故を予防する
ために、従来、種々の提案がなされている（実開昭６０
−５５４４８号公報、実開昭６１−８５２３９号公報、
実開平４−５８２５６号公報、特開平４−２４４１６７
号公報、特表平３−５０４８０８号公報、特開平２−１
２８８号公報、特開平４−９０７６６号公報、特開昭６
２−１４４６６６号公報、特開昭６３−３１７１６０号
公報、特開昭６４−８６９８１号公報など）。実開昭６
０−５５４４８号公報および実開昭６１−８５２３９号
公報に示すものは口部変形プロテクターであり、プロテ
クターの口部を拡径してラッパ状にしたものや口部に近
接して鍔を設けたもの、口部に長手方向のスリットを設
けたものが開示されている。また、実開平４−５８２５
６号公報および特開平４−２４４１６７号公報に示すも
のは特殊形状のプロテクターであり、蛇腹状の伸長部を
有し、この伸長部を先端部へ向けて伸長させることによ
り注射針全体をカバーできるようにしたものや、基部と
この基部に可撓的に連結される圧縮性セクションを有す
るハウジングからなり、ハウジングに収容された注射針
の刃先を収縮させた圧縮性セクションに突き刺さるよう
にしたものが開示されている。Therefore, various proposals have been made in the past to prevent such erroneous puncture accidents (Japanese Utility Model Application Laid-Open No.
-55448, Japanese Utility Model Unexamined Publication No. 61-85239,
JP-A-4-58256, JP-A-4-244167
JP, JP-T3-504808, JP-A-2-1
288, JP-A-4-90766 and JP-A-6-90766
JP-A-2-144666, JP-A-63-317160, JP-A-64-86981, etc.). Showa 6
Japanese Unexamined Patent Publication No. 0-55448 and Japanese Unexamined Utility Model Publication No. Sho 61-85239 show a mouth deformable protector in which the mouth of the protector is enlarged to have a trumpet shape or a flange provided near the mouth. One that has a slit in the longitudinal direction at the mouth is disclosed. In addition, 4-5825
No. 6 and JP-A-4-244167 are specially shaped protectors having a bellows-like extending portion, which can be extended toward the distal end to cover the entire injection needle. And a housing having a base and a compressible section that is flexibly connected to the base, wherein the cutting edge of the injection needle housed in the housing is inserted into the contracted compressible section. It has been disclosed.
【０００４】一方、特表平３−５０４８０８号公報、特
開平２−１２８８号公報および特開平４−９０７６６号
公報に示すものは注射針引込タイプの注射器であり、使
用後の注射針を注射器のプランジャに引っ掛けて外筒の
中に引き込むようにしたものが開示されている。また、
特開昭６２−１４４６６６号公報、特開昭６３−３１７
１６０号公報および特開昭６４−８６９８１号公報に示
すものは保護体スライドタイプの注射器であり、注射器
の外筒に長手方向に進退自在な筒状の保護体を被せ、保
護体を注射器の外筒に沿って長手方向にスライドさせる
ことによって注射針全体をカバーできるようにしたもの
が開示されている。On the other hand, Japanese Unexamined Patent Publication No. Hei 3-504808, Japanese Unexamined Patent Publication No. Hei2-1288 and Japanese Unexamined Patent Publication No. Hei4-90766 are syringe needle retractable type syringes. There is disclosed one that is hooked on a plunger and drawn into an outer cylinder. Also,
JP-A-62-144666, JP-A-63-317
No. 160 and JP-A-64-86981 are syringes of a protective body slide type, in which an outer cylinder of the syringe is covered with a cylindrical protective body which can move forward and backward in a longitudinal direction, and the protective body is connected to an outer cylinder of the syringe. That can cover the entire injection needle by sliding in the longitudinal direction along the line.
【０００５】[0005]
【発明の解決しようとする課題】これらは確かに上述の
問題点を解決する手段として有効であるが、次のような
欠点が懸念される。すなわち、口部変形プロテクターを
用いたものは、プロテクターを挿入し直す必要があるた
め誤穿刺の可能性が残っており、特殊形状のプロテクタ
ー用いたものは、構造が複雑なため高価なものになる
上、操作性の点でも疑問が残る。また、注射針引込タイ
プのものは、注射器そのものが複雑な構造にならざるを
得ないだけでなく、注射針を引き込むための操作が煩雑
になる虞がある。さらにまた、保護体をスライドさせる
タイプのものは、その先端部が開放された状態になって
いるため、注射針に付着した体液がプロテクターの外に
漏れれてしまう虞があり、このタイプのものを改良し
て、体液の漏れを防ぐために蓋を設けたものや、再使用
防止を目的としてロック機構を設けたものは、注射器の
構造および操作性を複雑にすることになるので必ずしも
好ましいものとは言えない。本発明は如上の事情に鑑み
てなされたもので、誤穿刺事故を確実に防止することが
でき、構造が簡単であり、操作が簡便で、安価な注射器
組立体を提供することを目的とする。Although these are certainly effective as means for solving the above problems, the following drawbacks are a concern. In other words, the one using the mouth deforming protector leaves the possibility of puncture due to the need to reinsert the protector, and the one using the specially shaped protector is expensive due to its complicated structure. In addition, questions remain regarding operability. In addition, in the case of the injection needle retraction type, not only the syringe itself must have a complicated structure, but also the operation for retracting the injection needle may be complicated. Furthermore, since the tip of the type in which the protective body slides is open, the body fluid attached to the injection needle may leak out of the protector. Improving and providing a lid to prevent leakage of bodily fluids and providing a locking mechanism for the purpose of preventing reuse complicates the structure and operability of the syringe, so it is not necessarily preferable. I can't say. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an inexpensive syringe assembly that can reliably prevent an accidental puncture accident, has a simple structure, is easy to operate, and is inexpensive. .
【０００６】[0006]
【課題を解決するための手段】本発明は上記の課題を解
決するために、注射器と該注射器の外筒に長手方向にス
ライド可能かつ脱落不能に取り付けられた注射針保護体
からなる注射器組立体であって、前記注射針保護体は、
前記外筒に入れ子状に装着される筒状の取付部と、該取
付部から注射器の先端方向に延びる嘴状の保護部からな
り、該保護部は、前記注射針保護体を前記外筒に取り付
けた位置で開いており、前記注射針保護体を注射器の先
端のスライド停止位置までスライドさせたときに閉じる
ことができるように構成されてなる注射器組立体を採用
している。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a syringe assembly comprising a syringe and a needle protector which is slidably attached to an outer cylinder of the syringe in a longitudinal direction so as not to fall off. Wherein the injection needle protector is
A cylindrical attachment portion nested in the outer cylinder, and a beak-shaped protection portion extending from the attachment portion toward the distal end of the syringe, and the protection portion attaches the injection needle protector to the outer cylinder. A syringe assembly that is open at the attached position and that can be closed when the syringe needle protector is slid to the slide stop position at the tip of the syringe is employed.
【０００７】[0007]
【作用】上記の構成によれば、注射器使用後、注射針保
護体を注射器の外筒に沿って長手方向にスライドさせて
スライド停止位置（注射器の先端チップに装着された注
射針をカバーできる位置でもある）まで移動させること
ができる。この位置で注射針保護体の保護部を構成する
上下二片の嘴片を閉じると注射針は注射針保護体の保護
部の中にカバーされる。この時、保護部は閉じているの
で、注射針に付着した体液が外に漏れることがない。According to the above arrangement, after the syringe is used, the syringe needle protector is slid in the longitudinal direction along the outer cylinder of the syringe to stop the slide position (the position where the syringe needle attached to the tip of the syringe can be covered). ). At this position, when the upper and lower beaks constituting the protection part of the injection needle protection body are closed, the injection needle is covered in the protection part of the injection needle protection body. At this time, since the protection part is closed, the body fluid attached to the injection needle does not leak out.
【０００８】[0008]
【実施例】次に本発明の実施例について図面に基づいて
説明する。図１は本発明の一実施例を示す注射器組立体
の平面図であり（先端のチップに注射針が装着されてい
る）、図２は図１に示す注射器組立体において注射針保
護体を先端のスライド停止位置までスライドさせた状態
を示す図、図３は図２において保護部を閉じた状態を示
す図、図４は図３において注射針保護体部分を断面にし
た図である。また、図５〜図７は注射針保護体の他の実
施例を示す平面図であり、図８は注射針保護体の構成部
品の説明図である。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a syringe assembly showing one embodiment of the present invention (a syringe needle is mounted on a tip at the tip), and FIG. 2 shows a syringe assembly shown in FIG. FIG. 3 is a view showing a state in which the protection portion is closed in FIG. 2, and FIG. 4 is a view showing a cross section of the injection needle protector portion in FIG. FIGS. 5 to 7 are plan views showing another embodiment of the injection needle protector, and FIG. 8 is an explanatory diagram of components of the injection needle protector.
【０００９】図１〜図４に示すように本発明の注射器組
立体は、注射器１と注射針保護体２の組合せからなり、
注射針保護体２は注射器１の外筒１１に長手方向にスラ
イド可能かつ外筒１１から脱落しないように取り付けら
れている。そして、注射針保護体２は外筒１１に入れ子
状に装着される筒状の取付部２１と、この取付部２１か
ら注射器１の先端方向に延びる嘴状の保護部２２からな
り、保護部２２は外筒１１への取り付け位置で開いてお
り、注射針保護体２を注射器１の先端のスライド停止位
置までスライドさせたときに閉じることができるように
なっている。As shown in FIGS. 1 to 4, the syringe assembly of the present invention comprises a combination of a syringe 1 and a needle protector 2,
The injection needle protector 2 is attached to the outer cylinder 11 of the syringe 1 so as to be slidable in the longitudinal direction and not to fall off the outer cylinder 11. The injection needle protector 2 includes a tubular mounting portion 21 nested on the outer cylinder 11 and a beak-shaped protecting portion 22 extending from the mounting portion 21 toward the distal end of the syringe 1. Is opened at a position where it is attached to the outer cylinder 11, and can be closed when the injection needle protector 2 is slid to the slide stop position at the tip of the syringe 1.
【００１０】注射器１は通常の注射器と同様、外筒１１
と先端にプランジャ１２からなっているが、注射器１の
外筒１１の肩部には、注射針保護体２の注射器先端方向
へのスライドを停止させる手段としての係止突起１４が
設けられており、この係止突起１４は後述の注射針保護
体２の取付部２１に設けられた係合段部２３と係合して
注射針保護体２の外筒１１からの脱落を防いでいる。そ
して、注射針保護体２の注射器先端方向へのスライドが
停止される位置は、この位置で注射針保護体２の保護部
２２を閉じた時に外筒１１の先端のチップ１３に装着さ
れた注射針３がカバーされる位置でもある。注射器１の
外筒１１には、その後端のフランジ１６側に突起１５を
設け、注射針保護体２の後端に設けた係合用スリット２
５と係合して注射針保護体２が不用意にスライドしない
ようにしてもよい。尚、注射針保護体２の注射器先端方
向へのスライドを停止させる手段は係止突起１４と係合
段部２３の組合せに限定されるものではなく、種々の方
法が可能である。また、係止突起１４は限定されるもの
ではないが通常、環状にまたは図４に示すように上下一
対形成される。注射針保護体２が不用意にスライドしな
いようにする手段も突起１５と係合用スリット２５の組
合せに限定されるものではない。The syringe 1 has an outer cylinder 11 similar to a normal syringe.
The distal end of the syringe 1 has a plunger 12, and the shoulder of the outer cylinder 11 of the syringe 1 is provided with a locking projection 14 as a means for stopping the sliding of the syringe needle protector 2 toward the tip of the syringe. The locking projection 14 is engaged with an engaging step 23 provided on a mounting portion 21 of the injection needle protection body 2 described later to prevent the injection needle protection body 2 from dropping out of the outer cylinder 11. The position at which the injection needle protector 2 stops sliding in the direction of the distal end of the syringe is the injection position attached to the tip 13 of the distal end of the outer cylinder 11 when the protection part 22 of the injection needle protector 2 is closed at this position. It is also the position where the needle 3 is covered. The outer cylinder 11 of the syringe 1 is provided with a projection 15 on the rear end side of the flange 16 side, and the engagement slit 2 provided on the rear end of the injection needle protector 2.
5, the injection needle protection body 2 may be prevented from inadvertently sliding. The means for stopping the slide of the syringe needle protector 2 in the distal direction of the syringe is not limited to the combination of the locking projection 14 and the engaging step 23, and various methods are possible. The locking projections 14 are not limited, but are usually formed in a ring or as a pair as shown in FIG. The means for preventing the syringe needle protector 2 from sliding carelessly is not limited to the combination of the projection 15 and the engagement slit 25.
【００１１】注射針保護体２は筒状の取付部２１と嘴状
の保護部２２からなっており、取付部２１部分で注射器
１の外筒１１に入れ子状に取り付けられている。取付部
２１の前端すなわち保護部２２側端部は内壁が環状に切
り欠かれて係合段部２３に形成されており、この係合段
部２３は外筒１１の係止突起１４と係合して注射針保護
体２の外筒１１からの脱落を防いでいる。取付部２１の
後端には外筒１１の突起１５に対応して係合スリット２
５を設け、注射針保護体２が不用意にスライドしないよ
うにしてもよい。保護部２２はこの取付部２１と接続部
２６で接続された一対の嘴片２２１、２２２からなって
おり、注射針保護体２を注射器の外筒１１に取り付けた
状態は、丁度鳥が嘴を開いた様な恰好になっている。接
続部２６は、図１〜図４に示すように上下の嘴片２２
１、２２２の交叉部分に設けて、注射針保護体２を外筒
１１に取り付けたときに隣接する嘴片２２１、２２２と
取付部２１の端部同士が接触するようにしてもよいが、
図５に示すように上下に別々に設けて、注射針保護体２
を外筒１１に取り付けたときに隣接する嘴片２２１、２
２２と取付部２１の端部同士が離反するようにしてもよ
い。The injection needle protector 2 comprises a cylindrical mounting portion 21 and a beak-shaped protection portion 22. The mounting portion 21 is nested on the outer cylinder 11 of the syringe 1 at the mounting portion 21. The front end of the mounting portion 21, that is, the end portion on the side of the protection portion 22, is formed in an engagement step 23 with an inner wall cut out in an annular shape. As a result, the syringe needle protector 2 is prevented from falling off the outer cylinder 11. At the rear end of the mounting portion 21, the engaging slit 2 corresponding to the projection 15 of the outer cylinder 11 is provided.
5 may be provided to prevent the injection needle protector 2 from sliding carelessly. The protection part 22 is composed of a pair of beak pieces 221 and 222 connected by the attachment part 21 and the connection part 26. When the syringe needle protector 2 is attached to the outer cylinder 11 of the syringe, the bird is just beaked. It looks like it is open. As shown in FIGS. 1 to 4, the connecting portion 26 is connected to the upper and lower beak pieces 22.
1 and 222, the adjacent beak pieces 221 and 222 and the ends of the mounting portion 21 may be in contact with each other when the injection needle protector 2 is mounted on the outer cylinder 11.
As shown in FIG.
Beak pieces 221 and 2 adjacent to each other when the
The end portions of the mounting portion 21 and the mounting portion 21 may be separated from each other.
【００１２】注射針保護体２の保護部２２は通常自己閉
鎖性を付与されている。すなわち、これを注射器１の外
筒１１に装着しない状態で閉じるように形成されてい
る。例えば図１〜図４に示す注射針保護体２の場合、先
ず図８に示すような接続部２６がヒンジになった一対の
注射針保護体部品を形成し、上下の嘴片２２１、２２２
をそれぞれ接続部２６を中心に矢印ａ方向に折り曲げ、
辺２７同士を接着して形成しており、従って、注射針保
護体２を外筒１１に取り付けた状態では矢印ｂ方向にヒ
ンジの復元力が働くので、注射針保護体２の保護部２２
部分を外筒１１から外れる位置に移動すると保護部２２
が閉じるようになっている。図５に示す注射針保護体２
の場合も、同様にヒンジで接続されており、これが外筒
１１に取り付けられた時に嘴片２２１、２２２が外筒１
１によって押し開かれた状態になるので、ヒンジの復元
力による自己閉鎖性を有している。また、図６に示すも
のは取付部２１と保護部２２の間に介在されたバネ２８
により自己閉鎖性を付与されたものである。The protection part 22 of the injection needle protection body 2 is usually provided with a self-closing property. That is, it is formed so as to be closed without being attached to the outer cylinder 11 of the syringe 1. For example, in the case of the injection needle protector 2 shown in FIGS. 1 to 4, first, a pair of injection needle protector parts in which the connecting portions 26 are hinged as shown in FIG. 8 are formed, and the upper and lower beak pieces 221 and 222 are formed.
Are respectively bent in the direction of arrow a around the connection portion 26,
The sides 27 are adhered to each other. Therefore, when the injection needle protector 2 is attached to the outer cylinder 11, the restoring force of the hinge acts in the direction of arrow b, so that the protection portion 22 of the injection needle protector 2 is formed.
When the portion is moved to a position outside the outer cylinder 11, the protection portion 22 is moved.
Is closed. Injection needle protector 2 shown in FIG.
Is also connected by a hinge, and when this is attached to the outer cylinder 11, the beak pieces 221 and 222 are connected to the outer cylinder 1.
Since it is pushed and opened by 1, it has a self-closing property by the restoring force of the hinge. FIG. 6 shows a spring 28 interposed between the mounting portion 21 and the protection portion 22.
Is provided with a self-closing property.
【００１３】注射針保護体２にはその保護部２２先端に
上下の嘴片２２１、２２２を係合して保護部２２が容易
に開かないようにする係合手段２４を設けてもよい。係
合手段としては種々の方法が可能であるが、係合操作が
容易で一旦係合したら開放不可能なものが最も好まし
い。図1〜図４に示す係合手段２４は鉤手段であり、下
部嘴片２２２の先端にこの嘴片２２２と垂直に突起を設
け、この突起の内側すなわち取付部２１側に鉤（アンダ
ーカットに形成している）を設けたものである。注射針
保護体２には図７に示すようにその保護部２２の取付部
２１側端部にスライド用の鍔２９を設けてもよい。保護
部２２に鍔２９を設けることにより、注射針保護体２の
スライドが容易になるだけでなく、スライド停止位置で
接続部６を中心とする偶力が働くので、保護部２２を強
制的に閉じることができる。尚、注射針保護体２は取付
部２１と保護部２２が接続部２６を介して一体に形成さ
れているが、接続部２６の位置や接続方法については、
限定されるものではなく、例えば接続方法については蝶
番なども利用可能である。The injection needle protector 2 may be provided with an engagement means 24 at the tip of the protection portion 22 for engaging the upper and lower beak pieces 221 and 222 to prevent the protection portion 22 from being easily opened. Although various methods can be used as the engaging means, those which are easy to engage and cannot be released once engaged are most preferable. The engaging means 24 shown in FIGS. 1 to 4 is a hook means, and a projection is provided at the tip of the lower beak piece 222 in a direction perpendicular to the beak piece 222. Formed). As shown in FIG. 7, the injection needle protector 2 may be provided with a sliding collar 29 at the end of the protection part 22 on the attachment part 21 side. The provision of the collar 29 on the protection portion 22 not only facilitates the sliding of the injection needle protection body 2 but also causes a couple force centering on the connection portion 6 at the slide stop position. Can be closed. In addition, although the mounting part 21 and the protection part 22 are integrally formed through the connection part 26 in the injection needle protection body 2, about the position of the connection part 26 and the connection method,
The present invention is not limited to this, and for example, a hinge may be used for the connection method.
【００１４】次に本発明の注射器組立体の使用について
図１〜３を用いて説明する。注射器組立体の使用後、先
ず注射針保護体２を外筒１１の円周方向に回転させて突
起１５から係合スリット２５を外す。次いで注射針保護
体２を手で注射器１の先端方向に押せば、スライド停止
位置で外筒１１の係止突起１４と注射針保護体２の係合
段部２３が係合し、注射針保護体２の注射器先端方向へ
の移動が停止される。注射針保護体２の保護部２２を手
で上下方向に挟んで押さえると、上下の嘴片２２１、２
２２が閉じ、保護部２２の内部に注射針３を含んだ状態
で係合手段２４がロックされる。Next, the use of the syringe assembly of the present invention will be described with reference to FIGS. After the use of the syringe assembly, first, the injection needle protection body 2 is rotated in the circumferential direction of the outer cylinder 11 to remove the engagement slit 25 from the projection 15. Next, if the syringe needle protector 2 is manually pushed toward the distal end of the syringe 1, the locking projection 14 of the outer cylinder 11 and the engagement step 23 of the syringe needle protector 2 are engaged at the slide stop position, and The movement of the body 2 toward the distal end of the syringe is stopped. When the protection portion 22 of the injection needle protection body 2 is vertically held and pressed, the upper and lower beak pieces 221 and 2 are pressed.
The closing means 22 is closed, and the engaging means 24 is locked in a state where the injection needle 3 is included inside the protection part 22.
【００１５】[0015]
【発明の効果】以上説明してきたことから明らかなよう
に、本発明によれば、従来のものより構造が簡単で操作
が容易な安価な注射器組立体を提供することができると
ともに、医療従事者が誤って指などを注射針で傷つける
ような事故を起こすことなく使用済みの注射器および注
射針を廃棄処理することができる。As is apparent from the above description, according to the present invention, it is possible to provide an inexpensive syringe assembly which is simpler in structure and easier to operate than conventional ones, However, the used syringe and the used needle can be disposed of without causing an accident such as accidentally damaging a finger or the like with the needle.
【図１】本発明の一実施例を示す注射器組立体の平面図
である（先端のチップに注射針が装着されている）。FIG. 1 is a plan view of a syringe assembly showing one embodiment of the present invention (a needle at the tip of the syringe is mounted).
【図２】図１に示す注射器組立体において注射針保護体
を先端のスライド停止位置までスライドさせた状態を示
す図である。FIG. 2 is a view showing a state in which a syringe needle protector is slid to a slide stop position at a distal end in the syringe assembly shown in FIG. 1;
【図３】図２において保護部を閉じた状態を示す図であ
る。FIG. 3 is a view showing a state where a protection unit is closed in FIG. 2;
【図４】図３において注射針保護体部分を断面で表した
図である。FIG. 4 is a view showing a section of the injection needle protection body in FIG. 3;
【図５】注射針保護体の他の実施例を示す平面図であ
る。FIG. 5 is a plan view showing another embodiment of the injection needle protector.
【図６】注射針保護体の更に他の実施例を示す平面図で
ある。FIG. 6 is a plan view showing still another embodiment of the injection needle protector.
【図７】注射針保護体の更に他の実施例を示す平面図で
ある。FIG. 7 is a plan view showing still another embodiment of the injection needle protector.
【図８】注射針保護体の構成部品の説明図である。FIG. 8 is an explanatory diagram of components of the injection needle protector.
１ 注射器 １１ 外筒 １４ 係止突起 １５ 突起 ２ 注射針保護体 ２１ 取付部 ２２ 保護部 ２２１ 上方の嘴片 ２２２ 下方の嘴片 ２３ 係合段部 ２４ 係合手段 ２５ 係合スリット ２８ バネ ２９ 鍔 DESCRIPTION OF SYMBOLS 1 Syringe 11 Outer cylinder 14 Locking projection 15 Projection 2 Injection needle protector 21 Attachment part 22 Protecting part 221 Upper beak piece 222 Lower beak piece 23 Engagement step part 24 Engagement means 25 Engagement slit 28 Spring 29 Flange
Claims (3)
ライド可能かつ脱落不能に取りつけられた注射針保護体
からなる注射器組立体であって、前記注射針保護体は、
前記外筒に入れ子状に装着される筒状の取付部と、該取
付部から注射器の先端方向に延びる嘴状の保護部からな
り、該保護部は、前記注射針保護体を前記外筒に取り付
けた位置でそれ自体が開いており、前記注射針保護体を
注射器の先端のスライド停止位置までスライドさせたと
きに、それ自体が閉じた状態になることができるように
構成されてなる注射器組立体。1. A syringe assembly comprising a syringe and an injection needle protector attached to the outer cylinder of the syringe so as to be slidable in a longitudinal direction and non-detachably, wherein the injection needle protector comprises:
A cylindrical attachment portion nested in the outer cylinder, and a beak-shaped protection portion extending from the attachment portion toward the distal end of the syringe, and the protection portion attaches the injection needle protector to the outer cylinder. A syringe set which is open at the attached position and which can be closed when the syringe needle protector is slid to the slide stop position at the tip of the syringe. Three-dimensional.
ともに、注射器保護体の取付部の端部に、前記突起と係
合するＬ字状の係合用スリットを設けてなる請求項1に
記載の注射器組立体。2. A projection is provided on a proximal end side of an outer cylinder of a syringe, and an L-shaped engagement slit for engaging with the projection is provided at an end of a mounting portion of the syringe protector. A syringe assembly according to claim 1.
を構成する上下の嘴片を係合する係合手段を設けてなる
請求項１または２に記載の注射器組立体。3. The syringe assembly according to claim 1, wherein an engagement means for engaging upper and lower beaks constituting the protection portion is provided at a tip of the protection portion of the injection needle assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05078822A JP3123296B2 (en) | 1993-03-12 | 1993-03-12 | Syringe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05078822A JP3123296B2 (en) | 1993-03-12 | 1993-03-12 | Syringe assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06261943A JPH06261943A (en) | 1994-09-20 |
| JP3123296B2 true JP3123296B2 (en) | 2001-01-09 |
Family
ID=13672530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05078822A Expired - Fee Related JP3123296B2 (en) | 1993-03-12 | 1993-03-12 | Syringe assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3123296B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3871487D1 (en) * | 1987-03-24 | 1992-07-02 | Nippon Petrochemicals Co Ltd | METHOD FOR PRODUCING 3-AETHYLBENZOPHENONE. |
| EP3275486B1 (en) * | 2015-03-24 | 2023-09-06 | Terumo Kabushiki Kaisha | Medical needle, and method for closing protector of medical needle |
| JP6636503B2 (en) * | 2015-03-27 | 2020-01-29 | テルモ株式会社 | Injection needle assembly and drug injection device |
| JPWO2022224517A1 (en) * | 2021-04-23 | 2022-10-27 |
-
1993
- 1993-03-12 JP JP05078822A patent/JP3123296B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06261943A (en) | 1994-09-20 |
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