JPH07299143A - Medical injection needle - Google Patents
Medical injection needleInfo
- Publication number
- JPH07299143A JPH07299143A JP6094722A JP9472294A JPH07299143A JP H07299143 A JPH07299143 A JP H07299143A JP 6094722 A JP6094722 A JP 6094722A JP 9472294 A JP9472294 A JP 9472294A JP H07299143 A JPH07299143 A JP H07299143A
- Authority
- JP
- Japan
- Prior art keywords
- injection needle
- needle
- injection
- guard
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は内科、外科、歯科等の
医科用に利用することができる注射針に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection needle which can be used for medical purposes such as internal medicine, surgery and dentistry.
【０００２】[0002]
【従来の技術】注射をする際には、患者に与える刺激を
できるだけ少なくすることが望ましい。従来の技術にお
いて注射針体に周囲被覆体を設けているものがある。こ
れは、特開平４−１０９９５９号に開示されており、一
部弾性体を含む周囲被覆体を注射針体の針基から針先ま
で設けたもので、注射時には周囲被覆体中の弾性体部が
長手方向に伸縮し、粘膜内に針が挿入されるものであ
る。この周囲被覆体を設けることによって、注射時にも
患者に注射針が見えず、恐怖感を小さくすることができ
る。しかし、注射時には治療者にも針先が見えないた
め、注射針体のカット面を常に適切な方向で挿入するこ
とが困難であり、また、注射針体挿入時の針の深さも分
かり難いという問題点があった。そのため本発明は従来
の、患者が注射針に抱く恐怖感を減少させる効果に加え
て、注射針のカット面の挿入方向、挿入角度や挿入深さ
を考慮したものである。2. Description of the Related Art It is desirable to give as little irritation to a patient as possible during injection. In the related art, there is one in which a surrounding coating is provided on an injection needle body. This is disclosed in Japanese Unexamined Patent Publication No. 4-109959, in which a peripheral coating including a part of elastic body is provided from a needle base of an injection needle body to a needle tip, and an elastic body portion in the peripheral coating body is provided at the time of injection. Expands and contracts in the longitudinal direction, and the needle is inserted into the mucous membrane. By providing this surrounding cover, the patient does not see the injection needle even during injection, and fear can be reduced. However, it is difficult for the therapist to see the needle tip during injection, so it is difficult to always insert the cut surface of the injection needle body in the proper direction, and it is also difficult to understand the depth of the needle when inserting the injection needle body. There was a problem. Therefore, the present invention takes into consideration the insertion direction, the insertion angle, and the insertion depth of the cut surface of the injection needle, in addition to the effect of reducing the fear of the injection needle that the patient feels.
【０００３】[0003]
【発明が解決しようとする課題】注射針挿入時に針先の
カット面の方向や、角度や深さを適切に保つことのでき
る注射針を得ると同時に、注射針の刺通時において、患
者に、注射に対する恐怖感を与えないことを目的とす
る。[Problem to be Solved by the Invention] At the same time as obtaining an injection needle capable of properly maintaining the direction, angle and depth of the cut surface of the needle tip when inserting the injection needle, at the same time as inserting the injection needle into the patient, The purpose is not to give fear of injection.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本発明は注射針体と前記注射針体が貫通し固定され
ている針基を有する医科用注射針において、針基に着脱
可能に固定され、前記注射針体の針先側を覆う、筒状で
あって先端部に前記針先の傾斜面と同じ側を向く傾斜面
を持つガードを設けたものである。In order to achieve the above-mentioned object, the present invention is a medical injection needle having an injection needle body and a needle base through which the injection needle body is penetrated and fixed, and is removable from the needle base. A guard having a slanted surface that is fixed to the end of the injection needle and covers the needle tip side and has a slanted surface that faces the same side as the slanted surface of the needle tip.
【０００５】さらに、前記注射針体の針の先端が前記ガ
ード先端部からわずかに突出させることが効果的であ
る。Furthermore, it is effective that the tip of the needle of the injection needle body slightly projects from the tip of the guard.
【０００６】また、上記記載の医科用注射針において、
前記ガードの針基への取付部をスライド可能に嵌合させ
るとともに、ガードが注射針体の先端まで覆うようにす
ると効果的である。In the medical injection needle described above,
It is effective that the mounting part of the guard on the needle base is slidably fitted and the guard covers the tip of the injection needle body.
【０００７】さらに、筒状ガード先端部付近の内径が、
注射針体とわずかな隙間を持って嵌合する小径とするこ
とが望ましい。Further, the inner diameter near the tip of the tubular guard is
It is desirable to have a small diameter that fits with the injection needle body with a slight gap.
【０００８】[0008]
【作用】上記構成によれば、注射の際には注射針体を覆
うガードの傾斜面を粘膜面に当接し、注射針を挿入する
ことで、注射針体の針先のカット面側が粘膜面に向く方
向に挿入されることになる。また、ガードが粘膜面、ま
たは皮膚に当たるため注射針体が過度に深く挿入される
ことがない。According to the above construction, during injection, the inclined surface of the guard that covers the injection needle body is brought into contact with the mucous membrane surface, and the injection needle is inserted so that the cut surface side of the needle tip of the injection needle body is the mucosal surface. It will be inserted in the direction toward. Moreover, since the guard contacts the mucous membrane surface or the skin, the injection needle body is not inserted too deeply.
【０００９】[0009]
【実施例】図１、図２に本発明の一実施例である医科用
注射針の構造を示す。1 and 2 show the structure of a medical injection needle according to an embodiment of the present invention.
【００１０】医科用注射針（４）は、キャップ（２）と
コンテナ（３）とからなる注射針ケース（１）の中に収
納されており、注射針体（５）を針基（６）を貫通して
固定し、注射針体（５）を覆う筒状のガード（硬質の合
成樹脂材製、金属材製などとすることができる。）
（７）を設ける。ガード（７）は不測の事故により注射
針体（５）が曲がってしまうのを防ぐため、針先部付近
を肉厚とし、その内径が注射針体とわずかな隙間を持っ
て嵌合するような小径となっている。また、ガード
（７）の先端からは針先を注射液の注入に必要な程度、
ここでは１．５mm程度出しておく。麻酔を行う準備段階
での注射では、一般にこの程度が適切である。さらに、
ガード（７）の先端に針先のカット面と同じ側を向く、
適切な注射角度を考慮した傾斜面（７ａ）を設け、これ
らの向きが分かりやすいようにマーク（９）を付する。
なお、注射針体（５）を覆うガード（７）は、針基
（６）に取り外し可能に挿入固定する。The medical injection needle (4) is housed in an injection needle case (1) consisting of a cap (2) and a container (3), and the injection needle body (5) is connected to a needle base (6). A cylindrical guard (which can be made of a hard synthetic resin material, a metal material, or the like) that penetrates through and is fixed to cover the injection needle body (5).
(7) is provided. In order to prevent the injection needle body (5) from bending due to an unexpected accident, the guard (7) has a wall thickness near the tip of the needle, and its inner diameter fits with the injection needle body with a slight gap. It has a small diameter. Further, from the tip of the guard (7), a needle tip is necessary to inject the injection solution,
Here, it is about 1.5 mm. This is generally adequate for preparatory injections for anesthesia. further,
At the tip of the guard (7), face the same side as the cut surface of the needle tip,
An inclined surface (7a) in consideration of an appropriate injection angle is provided, and a mark (9) is attached so that these directions can be easily understood.
The guard (7) covering the injection needle body (5) is detachably inserted and fixed to the needle base (6).
【００１１】使用に当っては図３に示すように、粘膜面
（Ｂ）または皮膚面に傾斜面（７ａ）を合わせるように
して注射針体（５）を挿入する。特に、歯科治療におけ
る口中麻酔注射の場合には、まず、ガード（７）を付け
た状態で注射液を粘膜内に少し注入し、軽度の準備麻酔
を患者に施し、一度粘膜内から針を抜き取る。少々時間
をおき、ガード（７）を注射器（８）から取り外して、
再び注射針体（５）を粘膜内に挿入する。この場合、最
初の準備麻酔段階で患者に軽度の麻酔が施されているた
め、最初のときより粘膜内に注射針体（５）が深く挿入
される場合でも、注射液が粘膜内に注入される際の圧力
による痛みをあまり感じない。なお、刺入時、ガード傾
斜面（７ａ）と針先とがほぼ同時に当たるため、感触が
針先に集中せず、痛みを和らげる効果がある。In use, as shown in FIG. 3, the injection needle body (5) is inserted so that the inclined surface (7a) is aligned with the mucous membrane surface (B) or the skin surface. In particular, in the case of oral anesthesia injection in dental treatment, first, a small amount of the injection solution is injected into the mucous membrane with the guard (7) attached, a slight preliminary anesthesia is given to the patient, and the needle is once removed from the mucous membrane. . After a while, remove the guard (7) from the syringe (8),
The injection needle body (5) is again inserted into the mucous membrane. In this case, since the patient has been slightly anesthetized in the initial preparation anesthesia stage, the injection solution is injected into the mucous membrane even when the injection needle body (5) is deeply inserted into the mucous membrane from the beginning. I don't feel much pain due to the pressure. When the needle is inserted, the sloped surface (7a) of the guard and the tip of the needle come into contact with each other almost at the same time.
【００１２】傾斜面（７ａ）があることで使用時には注
射針体（５）のカット面を粘膜面（Ｂ）方向に向けて挿
入しやすく、注射針体（５）は浅く挿入することができ
るので、注射時の痛みを緩和できる。すなわち、図４
（ｂ）のように針先のカット面が、粘膜浅部に向いてい
ると液がもれやすいが、マーク（９）を付して傾斜面
（７ａ）の方向を容易に判断できるようにし、図４
（ａ）のようにガード（７）を粘膜面（Ｂ）に向ければ
針先のカット面も粘膜側に向くので、浅い刺入でも液が
もれにくく、粘膜深部にも浸透しやすい。また、ガード
（７）に沿って針先を斜めに刺入するようになっている
ので、特に歯科の場合、奥歯の粘膜に刺入する際にも唇
や頬粘膜がじゃまになったり、唇や頬粘膜を傷つけるこ
とがない。さらに、注射針体（５）の先端をガード
（７）から出しておくことで注射時の位置決定が容易に
なり、また、注射針体（５）は必要程度、ここでは先端
約１．５mmしか出ていないため患者にそれほど視覚的な
恐怖感を与えずに済み、粘膜内に必要以上に深く挿入し
てしまうこともないので、痛みが少なく安全である。さ
らに、ガード（７）があることで、注射器（８）への注
射針（４）の設置後、コンテナ（３）を抜き取る際に注
射針体（５）がコンテナ（３）に触れることがないの
で、注射針体（５）を変形させてしまうことがなく、扱
いやすいと同時に衛生的で、安全である。The use of the inclined surface (7a) facilitates insertion of the cut surface of the injection needle body (5) toward the mucous membrane surface (B) during use, and the injection needle body (5) can be inserted shallowly. Therefore, the pain at the time of injection can be relieved. That is, FIG.
As shown in (b), if the cut surface of the needle tip is directed to the superficial part of the mucous membrane, the liquid is likely to leak, but a mark (9) is attached so that the direction of the inclined surface (7a) can be easily determined. , Fig. 4
When the guard (7) is directed to the mucosal surface (B) as shown in (a), the cut surface of the needle tip is also directed toward the mucosal side, so that the liquid does not easily leak even when shallowly inserted and easily penetrates deep into the mucous membrane. In addition, since the needle tip is inserted obliquely along the guard (7), especially in the case of dentistry, the lips and cheek mucosa may be obstructed when the mucous membrane of the posterior teeth is inserted. And buccal mucosa is not damaged. Furthermore, by positioning the tip of the injection needle body (5) from the guard (7), it becomes easy to determine the position at the time of injection, and the injection needle body (5) is necessary, here, the tip is about 1.5 mm. Since it does not appear so much, the patient does not feel too much of a visual fear, and since it is not inserted too deeply into the mucous membrane, it is less painful and safe. Further, the guard (7) prevents the needle body (5) from touching the container (3) when the container (3) is pulled out after the injection needle (4) is installed in the syringe (8). Therefore, the needle body (5) is not deformed, and it is easy to handle, hygienic, and safe.
【００１３】図５と図６は、本発明にかかわる他の実施
例を示すもので、図５はガード（７）の針基（６）側取
付部（７ｂ）を矢印ｃのようにスライド可能に嵌合した
ものである。使用に当たっては、図６に示すように粘膜
面（Ｂ）方向に前記の医科用注射針（４）の注射針体
（５）を押すと、ガードがスライドし、粘膜内に注射針
体（５）が挿入される。5 and 6 show another embodiment according to the present invention. In FIG. 5, the needle base (6) side attachment portion (7b) of the guard (7) can be slid as shown by an arrow c. It is fitted to. In use, as shown in FIG. 6, when the injection needle body (5) of the medical injection needle (4) is pushed in the direction of the mucous membrane surface (B), the guard slides and the injection needle body (5) enters the mucous membrane. ) Is inserted.
【００１４】この場合、スライド式ガード（７）によっ
て注射時にも患者に注射針体（５）が見えず、注射に対
する患者の恐怖感を和らげることができると同時に、上
記のようにスライド式ガード（７）先端部の傾斜面（７
ａ）によって、注射針体（５）を正しい角度で挿入する
事ができる。また、粘膜面（Ｂ）にスライド式ガード
（７）がまず当たり、その後、粘膜内に注射針を挿入す
ることとなるため、注射液が粘膜内に挿入される際の圧
力による刺激や、刺入時の痛みも和らげることができ
る。In this case, the injection needle body (5) is not visible to the patient by the slide guard (7) even during the injection, so that the patient's fear of the injection can be eased, and at the same time, the slide guard (7) is used as described above. 7) Inclined surface (7
With a), the injection needle body (5) can be inserted at the correct angle. In addition, since the slide type guard (7) first contacts the mucous membrane surface (B) and then the injection needle is inserted into the mucous membrane, irritation due to pressure when the injection solution is inserted into the mucous membrane and puncturing. You can relieve the pain when you enter.
【００１５】[0015]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is constructed as described above, it has the following effects.
【００１６】請求項１の発明において、治療者は注射針
体を粘膜面に対して的確な方向、角度、深さで挿入する
ことができる。そのため、患者にとっては注射針挿入時
の痛みや、注射液挿入時の粘膜内に対する圧力による痛
みが少ない。特に歯科治療における口中麻酔注射の場合
の際に、治療者に見えにくい位置でも注射針体の角度を
適切な状態で挿入しやすい。According to the first aspect of the present invention, the therapist can insert the injection needle body into the mucosal surface at an appropriate direction, angle and depth. Therefore, the patient has less pain when inserting the injection needle and less pain due to the pressure on the mucous membrane when inserting the injection solution. Particularly, in the case of oral anesthesia injection in dental treatment, it is easy to insert the injection needle body at an appropriate angle even at a position where it is difficult for the operator to see.
【００１７】請求項２の発明においては、さらに、位置
決定がしやすく、針先が粘膜内に必要以上に深く入りす
ぎる事がないので患者にとって痛みも少なく、安全であ
る。According to the second aspect of the invention, furthermore, the position is easy to determine, and the needle tip does not go into the mucous membrane too deeply, which is less painful and safe for the patient.
【００１８】請求項３の発明においては、さらに、ガー
ド取付部がスライド式になっているため、針先を覆うこ
とができ、視覚面で患者の恐怖感を十分和らげることが
できるとともに、ガード傾斜面が当たってから針先が挿
入されることとなるため痛みを軽減できる。Further, in the invention of claim 3, since the guard mounting portion is of a slide type, it is possible to cover the needle tip, so that the fear of the patient can be softened visually, and the guard inclination is increased. Since the needle tip is inserted after the surface hits, the pain can be reduced.
【００１９】請求項４の発明においては、さらに、不測
の事故による注射針体の曲がりを防止できる。According to the invention of claim 4, further, it is possible to prevent the injection needle body from being bent due to an unexpected accident.
【図１】本発明の一実施例を示す注射針ケース入り医科
用注射針正面の一部断面図である。FIG. 1 is a partial cross-sectional view of the front of a medical injection needle with an injection needle case, showing an embodiment of the present invention.
【図２】図１に示した注射針ケース入り医科用注射針の
分解斜視図である。FIG. 2 is an exploded perspective view of the medical injection needle containing the injection needle case shown in FIG.
【図３】図１、２の実施例の医科用注射針使用時におけ
る正面図である。FIG. 3 is a front view of the embodiment of FIGS. 1 and 2 when a medical injection needle is used.
【図４】（ａ）、（ｂ）は、医科用注射針の注射針体の
カット面の挿入方向の例を示す一部断面拡大説明図であ
る。4A and 4B are partially enlarged cross-sectional explanatory views showing an example of an insertion direction of a cut surface of an injection needle body of a medical injection needle.
【図５】本発明の他の実施例であり、医科用注射針正面
の一部断面図である。FIG. 5 is a partial cross-sectional view of the front of the medical injection needle according to another embodiment of the present invention.
【図６】図５の実施例における医科用注射針使用時の正
面図である。FIG. 6 is a front view of the embodiment of FIG. 5 when a medical injection needle is used.
１ 注射針ケース ２ キャップ ３ コンテナ ４ 注射針 ５ 注射針体 ６ 針基 ７ ガード ７ａ 傾斜面 ７ｂ 取付部 ８ 注射器 ９ マーク 1 injection needle case 2 cap 3 container 4 injection needle 5 injection needle body 6 needle base 7 guard 7a inclined surface 7b mounting portion 8 syringe 9 mark
Claims (4)
れている針基を有する医科用注射針において、針基に着
脱可能に固定され、前記注射針体の針先側を覆う、筒状
であって先端部に前記針先の傾斜面と同じ側を向く傾斜
面を持つガードを設けたことを特徴とする医科用注射
針。1. A medical injection needle having an injection needle body and a needle base through which the injection needle body penetrates and is fixed, wherein the injection needle body is detachably fixed to the needle base and covers the needle tip side of the injection needle body. A medical injection needle characterized in that a guard having a cylindrical shape and having an inclined surface facing the same side as the inclined surface of the needle tip is provided at the tip portion.
端部からわずかに突出していることを特徴とする請求項
１記載の医科用注射針。2. The medical injection needle according to claim 1, wherein a tip of the needle of the injection needle body slightly projects from the guard tip.
可能に嵌合しており、前記ガードが前記注射針体の先端
まで覆っていることを特徴とする請求項３記載の医科用
注射針。3. The medical injection according to claim 3, wherein an attachment portion of the guard to the needle base is slidably fitted, and the guard covers the tip of the injection needle body. needle.
前記注射針体とわずかな隙間を持って嵌合する小径であ
ることを特徴とする請求項１、２または３記載の医科用
注射針。4. The inner diameter near the tip of the tubular guard is
The medical injection needle according to claim 1, 2 or 3, having a small diameter that fits with the injection needle body with a slight gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6094722A JPH07299143A (en) | 1994-05-09 | 1994-05-09 | Medical injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6094722A JPH07299143A (en) | 1994-05-09 | 1994-05-09 | Medical injection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07299143A true JPH07299143A (en) | 1995-11-14 |
Family
ID=14118023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6094722A Pending JPH07299143A (en) | 1994-05-09 | 1994-05-09 | Medical injection needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07299143A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004501724A (en) * | 2000-06-29 | 2004-01-22 | ベクトン・ディキンソン・アンド・カンパニー | Needle for intradermal delivery of a substance having penetration limiting means |
| JP2012250044A (en) * | 2004-06-24 | 2012-12-20 | Sphergen | Device transferring molecule to cell by use of electric force |
| US8557251B2 (en) | 2001-02-23 | 2013-10-15 | Glaxosmithkline Biologicals, Sa | Non-live trivalent influenza vaccine for one-dose intradermal delivery |
| WO2015059958A1 (en) * | 2013-10-24 | 2015-04-30 | オリンパス株式会社 | Medical needle and medical instrument |
| CN112384269A (en) * | 2018-07-09 | 2021-02-19 | 学校法人庆应义塾 | Infusion device assembly |
-
1994
- 1994-05-09 JP JP6094722A patent/JPH07299143A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004501724A (en) * | 2000-06-29 | 2004-01-22 | ベクトン・ディキンソン・アンド・カンパニー | Needle for intradermal delivery of a substance having penetration limiting means |
| US8557251B2 (en) | 2001-02-23 | 2013-10-15 | Glaxosmithkline Biologicals, Sa | Non-live trivalent influenza vaccine for one-dose intradermal delivery |
| JP2012250044A (en) * | 2004-06-24 | 2012-12-20 | Sphergen | Device transferring molecule to cell by use of electric force |
| WO2015059958A1 (en) * | 2013-10-24 | 2015-04-30 | オリンパス株式会社 | Medical needle and medical instrument |
| CN112384269A (en) * | 2018-07-09 | 2021-02-19 | 学校法人庆应义塾 | Infusion device assembly |
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