JP2008228993A - Injection needle - Google Patents

Injection needle Download PDF

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Publication number
JP2008228993A
JP2008228993A JP2007072930A JP2007072930A JP2008228993A JP 2008228993 A JP2008228993 A JP 2008228993A JP 2007072930 A JP2007072930 A JP 2007072930A JP 2007072930 A JP2007072930 A JP 2007072930A JP 2008228993 A JP2008228993 A JP 2008228993A
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Japan
Prior art keywords
needle
injection
injection needle
syringe
present
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Pending
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JP2007072930A
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Japanese (ja)
Inventor
Daitaro Fukuoka
大太朗 福岡
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Individual
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Individual
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Priority to JP2007072930A priority Critical patent/JP2008228993A/en
Publication of JP2008228993A publication Critical patent/JP2008228993A/en
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    • 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M2005/341—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub angularly adjustable or angled away from the axis of the injector
    • 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
    • A61M5/46—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 having means for controlling depth of insertion

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  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an injection needle, the leading end of which rarely reaches the fat layer under the skin containing nerve ends and blood vessels and can always stay at an appropriate depth even if the injection is repeated, for instance, in the case of the injection of a liquid medicine like hyaluronic acid, etc., that is to be done in a relatively surface part of subcutaneous tissue. <P>SOLUTION: This injection needle is characterized in that at least the leading end of its needle body for injecting a liquid medicine into the outermost layer 12 of the skin is manufactured to keep a longitudinally curved form. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は注射針に関する。   The present invention relates to an injection needle.

一般に、皮膚組織における真皮の内部には、ヒアルロン酸が存在する。このヒアルロン酸は、タンパク質と結合して細胞のすきまを埋める多糖類である。また、水となじみやすい親水性であるため、肌のハリや弾性を保つ保水の役割がある。   In general, hyaluronic acid is present inside the dermis in skin tissue. This hyaluronic acid is a polysaccharide that binds to proteins and fills gaps in cells. Moreover, since it is hydrophilic and easily blends with water, it has a role of retaining water to keep the skin firm and elastic.

ここで、美容外科の分野では、このヒアルロン酸に着目し、加齢によるシワ、あるいは乾燥によるシワを根本的に解消する目的で、ヒアルロン酸の皮膚表皮への投与が行なわれている。   Here, in the field of cosmetic surgery, hyaluronic acid is administered to the skin epidermis for the purpose of eliminating wrinkles due to aging or wrinkles due to drying, focusing on this hyaluronic acid.

ところで、生体組織内へのヒアルロン酸などの薬液投与を注射で行う場合、皮下組織の比較的表面部分に行ない、ここから皮膚深部へと浸透させるのが一般的である。
また、薬剤の投与に使用される注射器は、円筒状のシリンダと、可動式のピストンとを有するものが知られているが、例えば、予防接種などでは、スタンプ式で薬剤が注入される場合もある。 By the way, when administration of a medical solution such as hyaluronic acid into a living tissue is performed by injection, it is generally performed on a relatively surface portion of the subcutaneous tissue and then penetrates deep into the skin.
In addition, syringes used for drug administration are known to have a cylindrical cylinder and a movable piston. For example, in vaccination, a drug may be injected by a stamp type. is there.

このように注射器あるいはスタンプ式などにより、薬液を注入する場合、注射針の生体組織内への刺す方向によっては、針先端部が真皮を越えて、神経終末、分泌線、血管などが存在する脂肪層にまで達してしまう虞があった。   In this way, when injecting medicinal solution with a syringe or stamp type, depending on the direction in which the injection needle is inserted into the living tissue, the tip of the needle crosses the dermis and fat that contains nerve endings, secretory lines, blood vessels, etc. There was a risk of reaching the layer.

本発明は、このような実情に鑑み、例えば、皮下組織の比較的表面部分にヒアルロン酸などの薬液を注入する場合に、神経終末や血管などが存在する脂肪層にまで針先が到達する虞を可及的に少なくし、常に適正な位置に針先を留めることが可能な注射針を提供することを目的としている。   In view of such circumstances, the present invention, for example, may inject a needle tip to a fat layer where nerve endings, blood vessels, and the like are present when a drug solution such as hyaluronic acid is injected into a relatively surface portion of a subcutaneous tissue. An object of the present invention is to provide an injection needle that can keep the needle tip in an appropriate position at all times.

上記目的を達成するための本発明に係る注射針は、
薬液を注入する針本体の少なくとも先端部分が、延出方向に向かって予め湾曲して形成されていることを特徴としている。 In order to achieve the above object, the injection needle according to the present invention comprises:
It is characterized in that at least the distal end portion of the needle body into which the chemical solution is injected is formed by being curved in advance in the extending direction.

このような構成の本発明によれば、針先の先端部が皮下組織の内部に深く入ろうとしても深く入ることができない。
本発明に係る注射針は、薬液が注入される薬液カートリッジに接続されても良い。 According to the present invention having such a configuration, even if the tip of the needle tip tries to enter deeply into the subcutaneous tissue, it cannot enter deeply.
The injection needle according to the present invention may be connected to a chemical cartridge into which a chemical is injected.

さらに、本発明に係る注射針は、円筒状のシリンダに直接具備されていても良い。   Furthermore, the injection needle according to the present invention may be directly provided in a cylindrical cylinder.

本発明に係る注射針によれば、針先端を皮下組織の内部に差し込んだ場合に、針先端部の形状に沿って曲がるように進むので、体の内部に深く入り込んでしまうことはない。
このような注射針は、糖尿病患者が用いるインシュリンの注射器のように、針の先端に薬液を塗布しておき、対象物に押し付けるような注射器にも適用可能である。また、シリンダとピストンを備えた通常の注射器にも適用可能である。 According to the injection needle according to the present invention, when the needle tip is inserted into the subcutaneous tissue, the needle proceeds so as to bend along the shape of the needle tip portion, so that it does not penetrate deeply into the body.
Such an injection needle can also be applied to a syringe in which a drug solution is applied to the tip of the needle and pressed against an object like an insulin syringe used by a diabetic patient. Moreover, it is applicable also to the normal syringe provided with the cylinder and the piston.

さらには、スタンプ式で薬液を注入する注射器などにも適用可能である。   Furthermore, the present invention can also be applied to a syringe that injects a chemical solution by a stamp type.

以下、本発明の好ましい実施の形態について、図面に示した実施例を参照しながら説明する。
図１は本発明の一実施例による注射器を示したものである。 Hereinafter, preferred embodiments of the present invention will be described with reference to the examples shown in the drawings.
FIG. 1 shows a syringe according to an embodiment of the present invention.

この注射器２は、薬液が注入されるシリンジ４と、このシリンジ４内に挿入されるロッド６と、シリンジ４にカートリッジ式で装着される針注射部８とから構成されている。そして、針注射部８に本実施例による注射針１０が接続されている。   The syringe 2 includes a syringe 4 into which a chemical solution is injected, a rod 6 inserted into the syringe 4, and a needle injection unit 8 attached to the syringe 4 in a cartridge type. An injection needle 10 according to this embodiment is connected to the needle injection unit 8.

注射針１０は、先端部が延出方向に向かって予め湾曲して形成されている。
したがって、このように注射針１０が予め湾曲された注射器２を用いる場合に、図２に示したように、皮下組織に対し、湾曲した針先端部１０ａ側を上向きにし、斜め方向から上方に向かってゆっくりと挿入すれば、その針先端部１０ａは、表皮１２に沿って前進する。これにより、神経終末や分泌線、血管などが存在する真皮１４に針先が到達することは良い。また、注入されるヒアルロン酸などは、表皮１２の内部に注入され、この部分から皮膚深部に浸透される。これにより、身体内のヒアルロン酸と一緒になってみずみずしい肌を長期間に渡って、持続させることができる。また、結果として、小ジワができた部分にハリを持たせることができる。 The injection needle 10 is formed such that the tip portion is curved in advance in the extending direction.
Therefore, when using the syringe 2 in which the injection needle 10 is curved in advance as described above, as shown in FIG. 2, the curved needle tip 10a side is directed upward with respect to the subcutaneous tissue and is directed upward from an oblique direction. If the needle tip 10a is inserted slowly, the needle tip 10a advances along the epidermis 12. Thereby, it is preferable that the needle tip reaches the dermis 14 where nerve endings, secretory lines, blood vessels and the like exist. Moreover, the hyaluronic acid etc. inject | poured are inject | poured inside the epidermis 12, and osmose | permeate deep into the skin from this part. Thereby, fresh skin can be maintained for a long time together with hyaluronic acid in the body. As a result, it is possible to give elasticity to the portion where the fine wrinkles are formed.

以上、本発明の一実施例について説明したが、本発明は上記実施例に何ら限定されない。例えば、上記実施例では、注射針１０がカートリッジ式になっているタイプについて説明したが、これに限定されない。   As mentioned above, although one Example of this invention was described, this invention is not limited to the said Example at all. For example, in the above-described embodiment, the type in which the injection needle 10 is a cartridge type has been described, but the present invention is not limited to this.

例えば、インシュリンなどの薬液を患者が自ら注射するペン型注射器にも適用可能である。また、図３に示したように予防接種などに用いられるスタンプ式の注射器にも適用可能である。このように、複数の注射針２０が設置される注射器にも適用可能である。注射する薬液は、ヒアルロン酸やインシュリンなどに何ら限定されない。また、注射する部位は、腕、尻などの他、頭皮あるいは眉であっても良い。   For example, the present invention can be applied to a pen-type syringe in which a patient himself or herself injects a medical solution such as insulin. Further, the present invention can also be applied to a stamp type syringe used for vaccination as shown in FIG. Thus, the present invention can also be applied to a syringe in which a plurality of injection needles 20 are installed. The liquid medicine to be injected is not limited to hyaluronic acid or insulin. Further, the site to be injected may be the scalp or the eyebrows in addition to the arm, the buttocks and the like.

さらに、本発明でいうところの湾曲とは、針先を斜めに刺した場合に、進む方向に曲がっていくことを意味しており、注射針１０のように全体を円弧状に大きく湾曲させても良く、あるいは注射針２０のように、先端部の一部のみを屈曲させることも本発明の適用範囲内である。   Further, the term “curvature” as used in the present invention means that the needle tip is bent in the forward direction when the needle tip is obliquely stabbed, and the whole is greatly curved in an arc shape like the injection needle 10. Alternatively, it is also within the scope of application of the present invention to bend only a part of the tip as in the case of the injection needle 20.

図１は本発明の一実施例による注射器を示した概略断面図である。FIG. 1 is a schematic sectional view showing a syringe according to an embodiment of the present invention. 図２は図１の注射器を用いて実際に注射した場合の概略図である。FIG. 2 is a schematic view when the injection is actually performed using the syringe of FIG. 図３は本発明の他の実施例による注射器の要部を示す概略側面図である。FIG. 3 is a schematic side view showing a main part of a syringe according to another embodiment of the present invention.

符号の説明Explanation of symbols

２ 注射器
４ シリンジ
６ ロッド
８ 針注射部
１０ 注射針
１０ａ 先端部
１２ 表皮
１４ 真皮
２０ 注射器 2 Syringe 4 Syringe 6 Rod 8 Needle injection part 10 Injection needle 10a Tip part 12 Epidermis 14 Dermis 20 Syringe

Claims (1)

薬液を注入する針本体の少なくとも先端部分が、延出方向に向かって予め湾曲して形成されていることを特徴とする注射針。   An injection needle characterized in that at least a distal end portion of a needle body for injecting a drug solution is formed to be curved in advance in the extending direction.
JP2007072930A 2007-03-20 2007-03-20 Injection needle Pending JP2008228993A (en)

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JP2007072930A JP2008228993A (en) 2007-03-20 2007-03-20 Injection needle

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011510715A (en) * 2008-02-04 2011-04-07 ハーツォグ，バーナード Hollow needle
CN108837238A (en) * 2018-07-13 2018-11-20 江苏省人民医院（南京医科大学第附属医院） Hyaluronic acid injection needle
WO2023137516A1 (en) * 2022-01-19 2023-07-27 Circulus By Julie Horne Pty Ltd Curved needle for dermal filling

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0355504U (en) * 1990-09-25 1991-05-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0355504U (en) * 1990-09-25 1991-05-29

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011510715A (en) * 2008-02-04 2011-04-07 ハーツォグ，バーナード Hollow needle
CN108837238A (en) * 2018-07-13 2018-11-20 江苏省人民医院（南京医科大学第附属医院） Hyaluronic acid injection needle
CN108837238B (en) * 2018-07-13 2023-09-01 江苏省人民医院（南京医科大学第一附属医院） Hyaluronic acid injection needle
WO2023137516A1 (en) * 2022-01-19 2023-07-27 Circulus By Julie Horne Pty Ltd Curved needle for dermal filling

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