JPH0325791Y2 - - Google Patents
Info
- Publication number
- JPH0325791Y2 JPH0325791Y2 JP1914288U JP1914288U JPH0325791Y2 JP H0325791 Y2 JPH0325791 Y2 JP H0325791Y2 JP 1914288 U JP1914288 U JP 1914288U JP 1914288 U JP1914288 U JP 1914288U JP H0325791 Y2 JPH0325791 Y2 JP H0325791Y2
- Authority
- JP
- Japan
- Prior art keywords
- needle
- syringe
- barrel
- slide ring
- 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
- 210000002445 nipple Anatomy 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000008280 blood Substances 0.000 description 8
- 210000004369 blood Anatomy 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 210000003811 finger Anatomy 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 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
- 238000000034 method Methods 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 208000006379 syphilis Diseases 0.000 description 2
- 208000030507 AIDS Diseases 0.000 description 1
- 206010019799 Hepatitis viral Diseases 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 238000009534 blood test Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 210000004880 lymph fluid Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010339 medical test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 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、注射器の改良、詳しくは、当該注射
器のニードル(neeedle)の片手操作で簡単に、
しかも安全確実に離脱させることができる新方式
の注射器に関するものであり、病院・医院および
各種の医療検査機関に従事する者の感染事故の防
止に大いに役立つ。[Detailed Description of the Invention] [Industrial Field of Application] The present invention aims to improve a syringe, and more specifically, to easily operate the needle of the syringe with one hand.
Moreover, it relates to a new type of syringe that can be withdrawn safely and reliably, and will be greatly useful in preventing infection accidents among people working in hospitals, clinics, and various medical testing institutions.
周知のとおり、病院などの医療機関において
は、疾病診療および健康管理を主任務としている
関係上、様々な診察、検査、治療などを行つてい
るのであるが、その中でも注射器の使用頻度は極
めて高く、薬液注入の注射や、血液を採取しての
検査など診療の的確化・客観化ないしは健康管理
に注射器の果たす役割は誠に大きい。ところが、
このように重要な役割を果たしている注射器も、
これを使用する医師、看護婦、臨床検査技師など
の医療関係者にとつては、その取扱が不便であ
り、また、彼らを大変な危険に曝していると云わ
れている。例えば、血液検査を例に採つて云え
ば、まず患者・被検者の血管を圧迫して拡張させ
当該局所を消毒して、注射器のニードルを穿刺し
てバレル内に吸引採血した後、ニードルにキヤツ
プを被せて注射器を検査室へ運んでから収容容器
(例えば、試験管)に移し替えるか、
ないしは、直ちにその場で注射器のニードルを
外して、バレル先端のニツプルオリフイスから採
取血液を射出して収容容器に移し替えるといつた
操作を行うのであるが、何れの場合においても担
当者が当該注射器のニードルを自分の手指などを
誤つて刺し、これがため不覚にも危険な疾病
(HBウイルス肝炎、梅毒、エイズ)に罹患する
という実に深刻な事故例が多数報告されているの
である
察するに、かゝる問題の起こる根本的な原因
は、注射器のニードルキヤツプおよびニードル
が、もう一方の手(通常、左手)を用いないと取
り外せないという従来注射器の構造に起因するの
であり、上記した採血処置に関連して発生する多
くの事故も手元・目測の狂いが最大の原因と云え
る。
As is well known, medical institutions such as hospitals perform a variety of examinations, tests, and treatments because their main mission is to treat diseases and manage health, but syringes are used extremely frequently. Syringes play an extremely important role in making medical treatments more accurate and objective, as well as in health management, such as injecting liquid medicines and taking blood samples for testing. However,
Syringes play such an important role,
It is said that it is inconvenient for medical personnel such as doctors, nurses, and clinical laboratory technicians to use it, and that it also exposes them to great danger. For example, taking a blood test as an example, first compress the blood vessels of the patient/subject to dilate them, disinfect the area, puncture the needle of the syringe, draw blood into the barrel, and then insert it into the needle. Either cap the syringe and transport it to the laboratory and transfer it to a holding container (e.g., a test tube), or you can immediately remove the syringe needle and inject the collected blood from the nipple orifice at the end of the barrel. However, in both cases, the person in charge of the syringe accidentally pricks his or her own finger with the needle of the syringe, and this inadvertently causes a dangerous disease (HB virus hepatitis). There have been many reports of serious accidents resulting in people contracting syphilis, syphilis, and AIDS.The root cause of such problems is that the needle cap and needle of the syringe are not connected to the other hand ( This is due to the structure of conventional syringes, which requires the use of the left hand (usually the left hand) to remove the syringe, and it can be said that the biggest cause of many accidents that occur in connection with the above-mentioned blood sampling procedures is due to errors in hand and visual measurement.
本考案者は、従来注射器のニードルの取り外し
が両手を使用しなければ行えない構造になつてい
ることに着目し、これを片手で簡単に取り外しで
きさえすれば前述のごとき危険および不便を解消
できるとの確信を得、注射器の改良を決意した次
第である。 The inventor of the present invention focused on the fact that conventional syringes have a structure that requires the use of both hands to remove the needle, and if the needle can be easily removed with one hand, the above-mentioned dangers and inconveniences can be eliminated. With this conviction, he decided to improve the syringe.
しかして、本考案の技術的課題は、注射器のニ
ードル(needle)およびそのキヤツプを片手で簡
単かつ確実に取り外せる安全脱針機構式の注射器
を提供することによつて前述のごとき感染事故を
防止し、併せて使用上の不便を解消するとにあ
る。 Therefore, the technical problem of the present invention is to prevent the above-mentioned infection accidents by providing a syringe with a safety needle removal mechanism that allows the syringe needle and its cap to be easily and reliably removed with one hand. , and also to eliminate inconvenience in use.
本考案者が上記技術的課題を解決するために採
用した手段を、添附図面を参照して説明すれば、
次のとおりである。
The means adopted by the present inventor to solve the above technical problem will be explained with reference to the attached drawings.
It is as follows.
即ち、本考案は、ニードル1がロツキングチツ
プ11を介し注射器バレル2のニツプルオリフイ
ス21に押嵌されて成る従来周知の注射器におい
て、前端面にバネフツク41を有するスライドリ
ング4を、同バネフツク41が前記ロツキングチ
ツプ11のエンドフランジ後端面11aに掛合可
能なる如くバレル2の外周面に滑嵌せしめ、
前記スライドリング4をニードル先端方へ前進
スライドさせたときニードル1がロツキングチツ
プ11と共に離脱して脱針されるという安全脱針
機構手段を採用することによつて前述の技術的課
題を解決したのである。 That is, the present invention provides a conventionally known syringe in which a needle 1 is press-fitted into a nipple orifice 21 of a syringe barrel 2 through a locking tip 11, and a slide ring 4 having a spring hook 41 on its front end surface. It is slidably fitted onto the outer peripheral surface of the barrel 2 so as to be able to engage with the rear end surface 11a of the end flange of the locking tip 11, and when the slide ring 4 is slid forward toward the tip of the needle, the needle 1 is detached together with the locking tip 11 and the needle is removed. The above-mentioned technical problem was solved by adopting the safety needle removal mechanism means.
以下、本考案を添附図面に示す実施例に基い
て、更に詳しく説明する。なお、第1図は本考案
の実施例である注射器全体の外観を慨略的に示す
分解斜視図、第2図は本実施例注射器に用いるス
ライドリングの拡大斜視図、第3図は同スライド
リングの変形例を示す拡大斜視図、第4図は本実
施例注射器のニードルが取り外される状態を表わ
す部分拡大断面説明図、第4図は本実施例注射器
のニードルキヤツプが取り外される状態を表わす
部分拡大断面説明図である。
Hereinafter, the present invention will be explained in more detail based on embodiments shown in the accompanying drawings. In addition, Fig. 1 is an exploded perspective view schematically showing the appearance of the entire syringe as an embodiment of the present invention, Fig. 2 is an enlarged perspective view of the slide ring used in the syringe of this embodiment, and Fig. 3 is the same slide. FIG. 4 is a partially enlarged cross-sectional explanatory view showing a state in which the needle of the syringe of this embodiment is removed; FIG. 4 is a portion showing a state in which the needle cap of the syringe of this embodiment is removed. FIG. 3 is an enlarged cross-sectional explanatory diagram.
図面上、符号1をもつて指示するものは、ニー
ドル(needle)である。このニードル1の基端部
はロツキングチツプ(locking tip)11に連通
状態に固定してあり、このロツキングチツプ11
を介して次に述べる注射器バレル(barrel)のニ
ツプルオリフイス(nipple orifice)に押嵌連結
されることによつてニードル〓バレル間の液流動
が可能になつている。 In the drawings, what is indicated by the reference numeral 1 is a needle. The proximal end of the needle 1 is fixed in communication with a locking tip 11.
The liquid flow between the needle and the barrel is made possible by being press-fitted to the nipple orifice of the syringe barrel, which will be described below, through the needle.
つぎに、符号2で指示するものは注射器バレル
であり、その先端部には中空テーパ状のニツプル
オリフイス21が当該バレルに連通状態に突設さ
れ、後端部にはフインガーフランジ(finger
flange)12が周設されている。そして、このバ
レル1の内筒部には、後述のプランジヤ
(plunger)が進退摺動可能に挿入してある。 Next, what is designated by the reference numeral 2 is a syringe barrel, at the tip of which a hollow tapered nipple orifice 21 is protruded in communication with the barrel, and at the rear end there is a finger flange.
flange) 12 are provided around the periphery. A plunger, which will be described later, is inserted into the inner cylindrical portion of the barrel 1 so as to be slidable forward and backward.
符号3で指示するものは、上記ニードル1をカ
バーするニードルキヤツプ(needle cap)であ
り、当該ニードルのロツキングチツプ11の外周
面に押嵌されている。 Reference numeral 3 designates a needle cap that covers the needle 1, and is press-fitted onto the outer peripheral surface of the locking tip 11 of the needle.
符号4で指示するものは、上記バレル2の胴周
面に滑嵌された合成樹脂製のスライドリングであ
り、ニードルに面する端面には弾力的なバネフツ
ク41が上記ロツキングチツプのエンドフランジ
11aおよびニードルキヤツプのエンドフランジ
3aの何れにも当接可能なサイズに形設されてい
る。しかして、このスライドリング4は、本実施
例では切欠円筒形(3/4割り形:第1図、第2
図参照)に成形したものを採択しているが、第1
図および第2図に示すものはロツキングチツプ1
1を外すことなく、ニードル1を装着した儘で事
後的にスライドリング4をセツトできるからであ
り、注射器組立時にセツトしておく場合には、第
3図に示すように円筒形の成形したものを用いる
ことも可能である。 The reference numeral 4 designates a slide ring made of synthetic resin that is slidably fitted onto the circumferential surface of the barrel 2, and an elastic spring hook 41 is provided on the end face facing the needle to lock the end flange 11a of the locking tip and the needle. The size is such that it can come into contact with any of the end flanges 3a of the cap. In this embodiment, the slide ring 4 has a notched cylindrical shape (3/4 split type: Figs. 1 and 2).
(see figure), but the first
What is shown in Figures and Figure 2 is the locking chip 1.
This is because the slide ring 4 can be set after the fact as soon as the needle 1 is attached without removing the needle 1.If the slide ring 4 is set when assembling the syringe, it is possible to use a cylindrical molded ring as shown in Fig. 3. It is also possible to use
なお、符号5で指示するものは上記バレル2の
内筒部に進退摺動可能に挿入されたプランジヤで
あり、先端部には気密ヘツド51が装着され、ま
た後端部には指押部(thumb rest)52が形成
してある。 In addition, what is indicated by the reference numeral 5 is a plunger inserted into the inner cylinder part of the barrel 2 so as to be able to move forward and backward, and an airtight head 51 is attached to the tip part, and a finger push part ( thumb rest) 52 is formed.
本実施例品は概ね上記のように構成されるが、
本考案は前述の実施例に限定されるものでは決し
てなく、「実用新案登録請求の範囲」の記載内に
おいて種々の変形が可能であつて、特に上記スラ
イドリング4の形状・材質およびバレル2との滑
嵌機構については、本考案者は従来慣用の周知技
術を適宜選択することを予定している。 The product of this example is generally constructed as described above, but
The present invention is by no means limited to the above-described embodiments, and can be modified in various ways within the scope of the claims for utility model registration, and in particular, the shape and material of the slide ring 4 and the barrel 2. Regarding the slip-fitting mechanism, the present inventor plans to appropriately select conventional and well-known techniques.
上記した本実施例注射器を用いて血液採取を行
う場合には、次のようにする。
When blood is collected using the syringe of this embodiment described above, the procedure is as follows.
まず、被検者(患者)の腕に駆血帯を装着して
血管を膨張させ当該局所に消毒処置を施す。つい
で、注射器(第1図)を利き腕にもつて、その親
指で第5図に示すごとく、スライドリング4をス
ライドリング4をニードルキヤツプ3の方向(〓
方向)へ押し遣る。すると、ニードルキヤツプの
エンドフランジ3aに当接しているバネフツク4
1がキヤツプ3全体を応じ出して、第5図破線に
表わすようにキヤツプはロツキングチツプからス
ツポリと抜け落ちることになる。ついで、同スラ
イドリング4を逆方向へスライドさせると、前記
バネフツク41がロツキングチツプ11のエンド
フランジ前面に衝合する。しかし、同スライドリ
ングのバネフツク41は弾力性があるため前記エ
ンドフランジにおいて屈撓して其処を乗り越え、
当該ロツキングチツプのエンドフランジ後面11
aと当該注射器バレル2の前面の間に位置するこ
とになる。 First, a tourniquet is attached to the arm of the subject (patient) to inflate the blood vessels and disinfect the area. Next, hold the syringe (Fig. 1) in your dominant arm and use your thumb to move the slide ring 4 in the direction of the needle cap 3 (as shown in Fig. 5).
direction). Then, the spring hook 4 in contact with the end flange 3a of the needle cap
1 causes the entire cap 3 to respond, and the cap suddenly falls out of the locking chip, as shown by the broken line in FIG. Then, when the slide ring 4 is slid in the opposite direction, the spring hook 41 abuts against the front surface of the end flange of the locking chip 11. However, since the spring hook 41 of the slide ring is elastic, it bends at the end flange and climbs over the end flange.
Rear surface 11 of the end flange of the locking tip
a and the front face of the syringe barrel 2.
そこで、消毒処置の済んだ上記被検者の血管に
ニードル穿刺してバレル2内に血液を吸引採血す
る。採血が完了したならば、第4図に示すよう
に、再度、スライドリング4をニードル方向(〓
方向)へ押し遣ると、ロツキングチツプ11のエ
ンドチツプ11aはバネフツク41に押されてニ
ツプルオリフイス21から離脱し、結局、第4図
破線に示すようにニードル1もろとも抜け落ちる
こととなる。ニードル1がニツプルオリフイス2
1から外れたならば、其処から採取した血液を収
容容器へ移し替えればよく、最早、ニードル1が
誤つて検査担当者の手指に刺さる危険性は全くな
いといつて良いであろう。 Therefore, a needle is punctured into the subject's blood vessel, which has been disinfected, and blood is drawn into the barrel 2 by suction. When blood collection is completed, as shown in Fig. 4, slide ring 4 is moved in the needle direction (〓
direction), the end tip 11a of the locking tip 11 is pushed by the spring hook 41 and separates from the nipple orifice 21, eventually falling out along with the needle 1 as shown by the broken line in FIG. Needle 1 is nipple orifice 2
1, the blood collected from that location can be transferred to a storage container, and there is no longer any risk of the needle 1 accidentally sticking into the finger of the person in charge of the test.
以上実施例をもつて説明したとおり、本考案を
適用して構成した注射器は、当該注射器を持つた
手の親指でスライドリングを前方へ押し遣るとい
う誠に簡単な操作によつてニードルを(所望によ
つてはニードルキヤツプをも)確実に離脱させ、
所定の箇所に投入することができるのである。
As explained above with reference to the embodiments, the syringe constructed by applying the present invention can be used to move the needle (as desired) by a very simple operation of pushing the slide ring forward with the thumb of the hand holding the syringe. Make sure to remove the needle cap (even the needle cap),
It can be placed in a designated location.
したがつて、本考案注射器を使用すれば、従来
の注射器を用いる場合と異なつて、血液・リンパ
液などの体液検査、および薬液注射などの治療に
伴う体液伝染性疾病の感染事故は有効に防止する
ことができるうえに、緊急時・繁忙時におけるニ
ードルキヤツプを取り外し作業も簡易になつて苛
立たしさが解消される等、その実用上のメリツト
は頗る大と云える。 Therefore, unlike the use of conventional syringes, the use of the syringe of the present invention effectively prevents infections of body fluid-transmitted diseases that occur when testing body fluids such as blood and lymph fluid, and during treatments such as drug injections. In addition, the practical merits of this method are enormous, as it simplifies the task of removing the needle cap during emergencies and busy times, eliminating frustration.
第1図は本考案の実施例である注射器全体の外
観を概略的に示す分解斜視図、第2図は本実施例
注射器に用いるスライドリングの拡大斜視図、第
3図は同スライドリングの変形例を示す拡大斜視
図、第4図は本実施例注射器のニードルが取り外
される状態を表わす部分拡大断面説明図、第5図
は本実施例注射器のニードルキヤツプが取り外さ
れる状態を表わす部分拡大断面説明図である。
1……ニードル、11……ロツキングチツプ、
11a……(ロツキングチツプの)エンドフラン
ジ後端面、2……注射器バレル、21……ニツプ
ルオリフイス、3……ニードルキヤツプ、3a…
…(ニードルキヤツプの)エンドフランジ後端
面、4……スライドリング、41……バネフツ
ク、5……プランジヤ。
Fig. 1 is an exploded perspective view schematically showing the appearance of the entire syringe as an embodiment of the present invention, Fig. 2 is an enlarged perspective view of a slide ring used in the syringe of this embodiment, and Fig. 3 is a modification of the slide ring. An enlarged perspective view showing an example, FIG. 4 is a partially enlarged cross-sectional view showing a state in which the needle of the syringe of this example is removed, and FIG. 5 is a partially enlarged cross-sectional view showing a state in which the needle cap of the syringe of this example is removed. It is a diagram. 1... Needle, 11... Locking tip,
11a... Rear end surface of end flange (of locking tip), 2... Syringe barrel, 21... Nipple orifice, 3... Needle cap, 3a...
...Rear end surface of the end flange (of the needle cap), 4...Slide ring, 41...Spring hook, 5...Plunger.
Claims (1)
器バレル2のニツプルオリフイス21に押嵌され
て成る注射器において、 前端面にバネフツク41を有するスライドリン
グ4を、同バネフツク41が前記ロツキングチツ
プ11のエンドフランジ後端面11aに掛合可能
なる如くバレル2の外周面に滑嵌せしめ、 前記スライドリング4をニードル先端方へ前進
スライドさせたときニードル1がロツキングチツ
プ11と共に離脱して脱針されることを特徴とす
る安全脱針機構を備えた注射器。[Claims for Utility Model Registration] In a syringe in which a needle 1 is press-fitted into a nipple orifice 21 of a syringe barrel 2 via a locking tip 11, a slide ring 4 having a spring hook 41 on the front end surface is provided, and the spring hook 41 is connected to the locking tip. The needle 1 is slidably fitted onto the outer peripheral surface of the barrel 2 so as to be able to engage with the rear end surface 11a of the end flange 11, and when the slide ring 4 is slid forward toward the tip of the needle, the needle 1 is detached together with the locking tip 11 and the needle is removed. A syringe equipped with a safety needle removal mechanism.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1914288U JPH0325791Y2 (en) | 1988-02-15 | 1988-02-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1914288U JPH0325791Y2 (en) | 1988-02-15 | 1988-02-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01122753U JPH01122753U (en) | 1989-08-21 |
JPH0325791Y2 true JPH0325791Y2 (en) | 1991-06-04 |
Family
ID=31234390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1914288U Expired JPH0325791Y2 (en) | 1988-02-15 | 1988-02-15 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0325791Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20150587A1 (en) * | 2015-04-24 | 2016-10-24 | Marchionni Marco | HIGHLY SAFE USE SYRINGE. |
-
1988
- 1988-02-15 JP JP1914288U patent/JPH0325791Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPH01122753U (en) | 1989-08-21 |
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