JP4598010B2 - Safety syringe - Google Patents
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- JP4598010B2 JP4598010B2 JP2007033413A JP2007033413A JP4598010B2 JP 4598010 B2 JP4598010 B2 JP 4598010B2 JP 2007033413 A JP2007033413 A JP 2007033413A JP 2007033413 A JP2007033413 A JP 2007033413A JP 4598010 B2 JP4598010 B2 JP 4598010B2
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Description
本発明は、注射器に関し、特に、１回使用したら二度と再使用が出来ないようにした安全注射器に関する。 The present invention relates to a syringe, and more particularly, to a safety syringe that cannot be reused again once used.
現在、使われている安全注射器は、注射後、注射針が注射筒の中に引き戻されるようになっているもので、例えば、台湾特許第Ｍ２６２１９５号『安全注射器』がある。この特許の安全注射器は、主として、注射針が挿設される針ベースと接合スリーブとが互いに螺合され、また、接合スリーブの底縁に錐形状の穴が形成され、穴の周縁に係合装置が設けられ、そして、接合スリーブの一側において、下へ垂直する突出部が伸ばされることにより、俾利、液押しプランジャーの先端の錐形状である突出柱が錐形状の穴に突入し、係合装置に係止されて位置付けられる時、突出部が弾性ピストンに当接し、また、液押しプランジャーが引き戻されることにより、針セットが注射筒の中に内蔵される時、弾性ピストンにより突出部が付勢され、針セットが自動的に偏移状態になり、これにより、１回しか使えない目的が実現される。 The safety syringe currently used is one in which the injection needle is pulled back into the syringe barrel after injection. For example, there is Taiwan Patent No. M262195 “Safety Syringe”. In the safety syringe of this patent, the needle base into which the injection needle is inserted and the joining sleeve are screwed together, and a conical hole is formed in the bottom edge of the joining sleeve, and the peripheral edge of the hole is engaged. A device is provided, and on one side of the joining sleeve, a protruding portion perpendicular to the bottom is extended, so that a protruding column which is a cone shape at the tip of the liquid plunger is inserted into a cone-shaped hole. When the needle set is built into the syringe barrel by the protrusion being brought into contact with the elastic piston when the engagement device is locked and positioned, and the liquid push plunger is pulled back, the elastic piston The protrusion is energized and the needle set automatically shifts, thereby realizing the purpose of being used only once.
しかし、上記の従来の安全注射器の構造設計には、至急に改善されなければならない所がある。
このような従来技術の注射器の接合スリーブの底縁にあるベース部はＯリングで、注射筒の内壁面に当接しているため、引き戻された時に、当該突出部が完全に所定の距離に偏移する機能が実現できない。その理由としては、主として、接合スリーブの底縁がＯリングに制限されて注射筒の内壁面に当接しているため、針セット構造全体を注射筒内で偏移させるための空間がなく、図５Ｃのように完全に偏移する、という目的が実現できない。
However, the above-described conventional safety syringe structural design has an urgent need to be improved.
Since the base portion at the bottom edge of the joining sleeve of such a prior art syringe is an O-ring and is in contact with the inner wall surface of the syringe barrel, the protrusion portion is biased to a predetermined distance when pulled back. The function to transfer cannot be realized. The reason is mainly that the bottom edge of the joining sleeve is limited to the O-ring and is in contact with the inner wall surface of the syringe barrel, so there is no space for shifting the entire needle set structure within the syringe barrel. The purpose of complete shift as in 5C cannot be realized.
また、突出穴部に嵌入される接合スリーブは、底端にある外縁へ拡大していくベース部が注射筒の内部に当接固定するが、そのため、ベース部が注射筒の収納室へ露出することにより、薬液を貯蔵しておくための注射筒の容量が少なくなると共に、薬液量を正確に制御できない。
本発明は、上記の安全注射器に残されている技術課題を解決できるようにした安全注射器を提供する。 The present invention provides a safety syringe that can solve the technical problems remaining in the safety syringe.
本発明における請求項１の発明における安全注射器は、一端に收束部１１が形成され、もう一端に指保持部１２が形成され、内部に収納室１３が形成され、收束部１１の内部に、孔径が収納室の孔径より小さい、収納室に連通する突出穴１４が設けられ、該突出穴１４において、収納室１３の方向へ向けて拡大傾斜するラッパ状の開口１４１が形成された中空な円筒体の注射筒１０と、
前記ラッパ状の開口部１４１に隣接した壁面に形成された環状の係合凹部１５に装着されるＯリング３４と、
直線的に移動できるように、注射筒１０の収納室１３に挿設され、一端に該注射筒１０の収納室１３の内壁に緊密に当接しながら摺動できる弾性ピストン２５が設けられ、該弾性ピストン２５の一側にほぞ２４が設けられ、もう一端に指押圧部２２が形成された押圧レバー２０と、
前記注射筒１０内に挿入されるゴム材質からなる接合スリーブ３３を有し、該接合スリーブ３３には軸方向に貫通する収納部が形成され、接合スリーブ３３の上部には先端部に針３１が装着された針ベース３２が設けられると共に、底端には傾斜突設部３３２が形成され、該傾斜突設部３３２の最大半径が注射筒１０の収納室１３の半径より小さく、該傾斜突設部３３２の底端に、外縁から下へ伸びる突片部３３８が形成され、前記接合スリーブ３３が突出穴１４に嵌入されると、傾斜突設部３３２の底面がラッパ状の開口１４１に一致し突出部が収納室１３に露出してなり、注射終了状態では前記弾性ピストン２５に当接する針セットと、
とからなり、前記前記針セットは、針３１と針ベース３２と接合スリーブ３３が組み合わされて構成されており、前記針３１は、前記針ベース３２に固定されていると共に、前記針ベース３２には拡径の円形係合リング３２１が形成されており、針ベース３２の係合リング３２１の下方には、接合スリーブ３３と螺合するための雄ねじ３２２が設けられていることを特徴とする。
請求項２の発明は、請求項１に記載の安全注射器において、前記傾斜突設部は、底面の近くにある壁縁に前記ほぞに合わせて、中へ突出する係合部が設けられていることを特徴とする。
In the safety syringe according to the first aspect of the present invention, the collecting portion 11 is formed at one end, the finger holding portion 12 is formed at the other end, the storage chamber 13 is formed inside, and the inside of the collecting portion 11 is formed. having a pore diameter of pore size smaller than the storage chamber, projecting hole 14 communicating is provided in the storage chamber, projecting in Deana 14 and a hollow horn-shaped opening 141 to expand inclined toward the direction of the housing chamber 13 is formed A cylindrical syringe barrel 10;
An O-ring 34 attached to an annular engaging recess 15 formed on a wall surface adjacent to the trumpet-shaped opening 141;
An elastic piston 25 that is inserted into the storage chamber 13 of the syringe barrel 10 and is slidable while being in close contact with the inner wall of the storage chamber 13 of the syringe barrel 10 is provided at one end so as to move linearly. A pressing lever 20 provided with a tenon 24 on one side of the piston 25 and a finger pressing part 22 on the other end;
A joining sleeve 33 made of a rubber material is inserted into the syringe barrel 10, and a housing portion penetrating in the axial direction is formed in the joining sleeve 33, and a needle 31 is provided at the tip of the joining sleeve 33. An attached needle base 32 is provided, and an inclined protruding portion 332 is formed at the bottom end, and the maximum radius of the inclined protruding portion 332 is smaller than the radius of the storage chamber 13 of the syringe barrel 10, and the inclined protruding portion is provided. the bottom end of the section 332, the protruding portions 338 extending downward is formed from the outer edge, when the joining sleeve 33 is fitted to the projecting hole 14, the bottom surface of the inclined protrusion 332 is in a trumpet-shaped apertures 141 one A needle set that is exposed in the storage chamber 13 and that comes into contact with the elastic piston 25 in the injection end state ;
The needle set is configured by combining a needle 31, a needle base 32, and a joining sleeve 33. The needle 31 is fixed to the needle base 32 and is attached to the needle base 32. A circular engagement ring 321 having an enlarged diameter is formed, and a male screw 322 for screwing with the joining sleeve 33 is provided below the engagement ring 321 of the needle base 32 .
According to a second aspect of the present invention, in the safety syringe according to the first aspect, the inclined protruding portion is provided with an engaging portion that protrudes inward in accordance with the tenon on a wall edge near the bottom surface. It is characterized by that.
本発明の効果は、次のようである。
１．本発明によれば、傾斜突設部の最大半径が注射筒の収納室の半径より小さいため、接合スリーブが注射筒の中へ引き戻された時、傾斜突設部の底縁が注射筒の内壁と所定の距離を保持できることにより、偏移の目的が確実に達成される。
２．本発明によれば、接合スリーブの傾斜突設部が、注射筒上部の突出穴の下方に形成されたラッパ状の開口と一致係合することにより、接合スリーブが注射筒の内部の収納室の薬液収納空間を占有することがない。
３．本発明によれば、Ｏリングが、直接に傾斜突設部の上方に位置付けられて、突出穴の壁面に当接することにより、薬液の外漏や位置付けの目的が実現される。
４．本発明によれば、前記針３１は、前記針ベース３２に固定されていると共に、前記針ベース３２には拡径の円形係合リング３２１が形成されており、針ベース３２の係合リング３２１の下方には、接合スリーブ３３と螺合するための雄ねじ３２２が設けられていることで、針セットの結合が確実となり、注射筒との安定的結合が強化される効果がある。
The effects of the present invention are as follows.
1. According to the present invention, since the maximum radius of the inclined protruding portion is smaller than the radius of the storage chamber of the syringe barrel, when the joining sleeve is pulled back into the syringe barrel, the bottom edge of the inclined protruding portion is the inner wall of the syringe barrel. And the predetermined distance can be maintained, the purpose of the shift is reliably achieved.
2. According to the present invention, the inclined projection portion of the joining sleeve is engaged with the trumpet-shaped opening formed below the protruding hole in the upper portion of the syringe barrel, whereby the joining sleeve is placed in the storage chamber inside the syringe barrel. It does not occupy the chemical storage space.
3. According to the present invention, the O-ring is positioned directly above the inclined projecting portion and abuts against the wall surface of the projecting hole, thereby realizing the purpose of leakage or positioning of the chemical solution.
4). According to the present invention, the needle 31 is fixed to the needle base 32, and a circular engagement ring 321 having an enlarged diameter is formed on the needle base 32, and the engagement ring 321 of the needle base 32 is formed. Since the male screw 322 for screwing with the joining sleeve 33 is provided below, the coupling of the needle set is ensured and the stable coupling with the syringe barrel is enhanced.
以下、本発明の注射器について図面と共に説明する。図１は本発明の安全注射器の第１実施例を示す一部切欠き分解斜視図、図２は本発明の安全注射器の断面図で、図２Ａの部分は接合スリーブの底端にある斜錐面の断面図、図３は本発明の使用時の断面図、図４は本発明の針セットが引き戻される状態の断面図、図５は本発明の針セットが底端まで引き戻される時の偏移状態の要部切欠き断面図、図６は本発明に係わる第２の実施例の要部断面図、図７は本発明に係わる第２実施例の接合スリーブの外観斜視図である・ Hereinafter, the syringe of the present invention will be described with reference to the drawings. 1 is a partially cutaway exploded perspective view showing a first embodiment of the safety syringe of the present invention, FIG. 2 is a cross-sectional view of the safety syringe of the present invention, and the portion of FIG. 2A is an oblique cone at the bottom end of the joining sleeve 3 is a cross-sectional view of the present invention, FIG. 4 is a cross-sectional view of the needle set of the present invention being pulled back, and FIG. 5 is a partial view of the needle set of the present invention being pulled back to the bottom end. FIG. 6 is a sectional view of a principal part of a second embodiment according to the present invention, and FIG. 7 is an external perspective view of a joining sleeve according to the second embodiment of the present invention.
本発明の安全注射器は、図１のように、注射筒１０と、押圧レバー２０と、針３１が配設される針ベース３２と接合スリーブ３３とから構成される小さい針セットと、針セットに被せられる蓋体３５から構成される。
中空の注射筒１０は、その一端に、やや先端につれて縮径になる收束部１１が形成され、他端部には、注射筒１０よりも拡張して形成された指保持部１２が設けられている。また、注射筒１０の胴部の内部は収納室１３が形成されていて、注射筒１０の收束部１１の内側には、収納室１３に連通する、上方に向かって徐々に縮径し、下方に向かっては徐々に拡大し、最大径がラッパ状の開口１４１に終端する円柱状の突出穴１４が設けられている。
As shown in FIG. 1, the safety syringe according to the present invention includes a syringe needle 10, a pressing lever 20, a small needle set including a needle base 32 on which a needle 31 is disposed, and a joining sleeve 33, and a needle set. It is comprised from the cover body 35 covered.
The hollow syringe barrel 10 is formed with a collecting portion 11 having a diameter that is slightly reduced toward the tip at one end, and a finger holding portion 12 that is formed so as to be larger than the syringe barrel 10 at the other end. ing. In addition, a storage chamber 13 is formed inside the barrel portion of the syringe barrel 10, and the inside of the bundle portion 11 of the syringe barrel 10 is communicated with the storage chamber 13 and gradually decreases in diameter toward the upper side. A cylindrical projecting hole 14 is provided which gradually expands downward and terminates in a trumpet-shaped opening 141 having a maximum diameter.
そして、このラッパ状の開口１４１と収納室１３の上端部とが連続され、円柱状の突出穴１４が、収納室１３の方向へ向かって傾斜したラッパ状の開口１４１に拡大し、該突出穴１４が、該ラッパ状の開口１４１の拡径により、 全体的に“漏斗”状に形成されている。また、突出穴１４とラッパ状の開口１４１との隣接壁面には環状の係合凹部１５が形成されている。
前記押圧レバー２０は、レバー体２１と、その末端に配設された拡大状の指による押圧部２２と、その先端に互いに離間状態に連結された複数の円盤状の結合部２３とから構成され、結合部２３の先端からほぞ２４が突設伸長している。そして、弾性ピストン２５が前記ほぞ２４を貫通して設置され、結合部２３と結合される、押圧レバー２０は、注射筒１０の収納室１３に可動に挿設され、収納室１３の中で直線的に往復摺動できるようになっている。
The trumpet-shaped opening 141 and the upper end of the storage chamber 13 are continuous, and the cylindrical projection hole 14 expands to a trumpet-shaped opening 141 inclined toward the storage chamber 13, and the projection hole 14 is formed in a “funnel” shape as a whole by the diameter increase of the trumpet-shaped opening 141 . An annular engaging recess 15 is formed on the adjacent wall surface between the protruding hole 14 and the trumpet-shaped opening 141 .
The pressing lever 20 is composed of a lever body 21, a pressing portion 22 with an enlarged finger disposed at the end thereof, and a plurality of disk-shaped coupling portions 23 connected to the tip of the lever body 21 in a separated state. The tenon 24 protrudes from the tip of the coupling portion 23. An elastic piston 25 is installed through the tenon 24 and is coupled to the coupling portion 23. The pressing lever 20 is movably inserted in the storage chamber 13 of the syringe barrel 10 and is straight in the storage chamber 13. Can be reciprocated in a reciprocal manner.
前記針セットは、針３１と針ベース３２とから成る針に接合スリーブ３３が組み合わされて構成されている。
前記針３１は、針ベース３２に固定されている。蓋体３５が針体に冠せられたとき当接面となるように、針ベース３２には適所に拡径の円形係合リング３２１が形成されている。針ベース３２の係合リング３２１の下方には、接合スリーブ３３と螺合するための雄ねじ３２２が設けられている。
The needle set is configured by combining a joining sleeve 33 with a needle composed of a needle 31 and a needle base 32.
The needle 31 is fixed to a needle base 32. The needle base 32 is formed with a circular engagement ring 321 having an enlarged diameter at an appropriate position so that the lid 35 becomes a contact surface when the lid 35 is put on the needle body. A male screw 322 for screwing with the joining sleeve 33 is provided below the engagement ring 321 of the needle base 32.
接合スリーブ３３が、収納室１３から突出穴１４方向へ嵌入されてゆく。接合スリーブ３３と突出穴１４との接合密着性を実現するために、接合スリーブ３３は円筒状結合部３３１と該円筒状結合部３３１の下端に下方に向けて傾斜面が形成された鍔状の傾斜突設部３３２とを有し、その全体形状は突出穴１４に対応するように漏斗状に設計されている。
前記接合スリーブ３３には、更に、円筒状結合部３３１と、最大半径が、注射筒の収納室１３の半径より小さい傾斜突設部３３２とが接合した外縁に、口径がやや小さい環状凹槽３３３が形成されている。環状凹槽３３３の中にはゴム製のＯリング３４が嵌設されるようになり、これにより、接合スリーブ３３が突出穴１４に嵌入された時、Ｏリング３４の外径が、突出穴１４の壁面に環設される係合凹部１５に当接し、これにより、接合スリーブ３３と突出穴１４との間の結合強度が強化されて、接合スリーブ３３が注射筒１０から脱離することを防止する効果が得られるようになる。
The joining sleeve 33 is inserted from the storage chamber 13 toward the protruding hole 14. In order to realize the bonding adhesiveness between the bonding sleeve 33 and the protruding hole 14, the bonding sleeve 33 has a cylindrical coupling portion 331 and a bowl-like shape in which an inclined surface is formed downward at the lower end of the cylindrical coupling portion 331. The entire shape of the inclined projecting portion 332 is designed in a funnel shape so as to correspond to the protruding hole 14 .
The joint sleeve 33 is further provided with an annular concave tank 333 having a slightly smaller diameter at the outer edge where a cylindrical coupling portion 331 and an inclined projecting portion 332 having a maximum radius smaller than the radius of the storage chamber 13 of the syringe barrel are joined. Is formed. A rubber O-ring 34 is fitted into the annular concave tank 333, so that when the joining sleeve 33 is fitted into the projecting hole 14, the outer diameter of the O-ring 34 is set to the projecting hole 14. This makes contact with the engaging recess 15 provided on the wall surface of the lens, thereby strengthening the coupling strength between the joining sleeve 33 and the protruding hole 14 and preventing the joining sleeve 33 from being detached from the syringe barrel 10. The effect to do.
図２，図３を参照しながら、本発明の安全注射器の内部構成について更に詳細に説明する。
前記接合スリーブ３３の軸方向には、内部を貫通して傾斜突設部３３２へと連通する収納部３３４が形成されている。収納部３３４の底面には、複数の等間隔に円弧状に配置された係合機構Ｂが設置され、その内部周面に上方へ徐々に縮径する錐形状穴Ａが形成されている。係合機構Ｂには、錐形状穴Ａの壁縁から内方へ突出する係合部３３５が設けられ、係合部３３５の中間に、貫通穴３３６が形成されている。
The internal structure of the safety syringe of the present invention will be described in more detail with reference to FIGS.
In the axial direction of the joining sleeve 33, a storage portion 334 that penetrates the inside and communicates with the inclined projecting portion 332 is formed. The bottom surface of the housing portion 334 arcuately positioned the engagement mechanism B is disposed in a plurality of equally spaced, progressively reduced in diameter to the conical or pyramidal hole A upward is formed on its inner peripheral surface. The engaging mechanism B is provided with an engaging portion 335 that protrudes inward from the wall edge of the conical hole A, and a through hole 336 is formed in the middle of the engaging portion 335.
図２Ａのように、注射器を使用する場合、ほぞ２４が錐形状穴Ａに嵌入されると、スムーズに貫通穴３３６に貫通して係合部３３５と係合状態になり、更に、やや弾性を有するほぞ２４が貫通穴３３６を介して収納部３３４へと収納されると、ほぞ２４の弾性が回復して拡径されるようになるので、貫通穴を逆戻りして再び引き出されるようなことが出来なくなる。 As shown in FIG. 2A, when using the syringe, when the tenon 24 is inserted into the conical hole A, the tenon smoothly penetrates the through hole 336 and engages with the engaging portion 335. When the mortise 24 is stored in the storage portion 334 through the through hole 336, the elasticity of the mortise 24 is recovered and the diameter is increased, so that the through hole may be reversed and pulled out again. It becomes impossible.
円筒状結合部３３１の内側内部に位置する収納部３３４の壁面には、針ベース３２の雄ねじ３２２と螺合するための雌ねじ３３７が螺設されている。
傾斜突設部３３２の底面の外周縁には、下方に伸長している突片部３３８が予めに一体的に形成されている。突片部３３８は、常時、収納室１３側に突出しており、押圧レバー２０が完全に押し入れられた場合、押圧レバー２０の先端にある弾性ピストン２５が、突片部３３８に弾性的に当接するようになる。
A female screw 337 for screwing with the male screw 322 of the needle base 32 is screwed on the wall surface of the storage portion 334 located inside the cylindrical coupling portion 331.
On the outer peripheral edge of the bottom surface of the inclined projecting portion 332, a projecting piece portion 338 extending downward is integrally formed in advance. The protruding piece portion 338 always protrudes toward the storage chamber 13, and when the pressing lever 20 is completely pushed in, the elastic piston 25 at the tip of the pressing lever 20 comes into elastic contact with the protruding piece portion 338. It becomes like this.
本発明の安全注射器は上記構造を有するので、以下の構造的効果が得られる。
傾斜突設部３３２の最大半径が注射筒１０の収納室１３の半径より小さいため、注射器の使用後注射針が引き戻されたとき、傾斜突設部３３２の底縁が注射筒１０の内壁に対して所定距離を維持されるため、使用済の針セットが注射筒内で確実に偏移されるという効果を実現できる。
Since the safety syringe of the present invention has the above structure, the following structural effects can be obtained.
Since the maximum radius of the inclined projecting portion 332 is smaller than the radius of the storage chamber 13 of the syringe barrel 10, the bottom edge of the inclined projecting portion 332 faces the inner wall of the syringe barrel 10 when the injection needle is pulled back after use of the syringe. Since the predetermined distance is maintained, the effect that the used needle set is surely shifted in the syringe barrel can be realized.
前記傾斜突設部３３２の形状は収納室１３と突出穴１４とが接合した所の係合縁に一致しているので、接合スリーブ３３の底端にある傾斜突設部３３２が突出穴１４の底端のラッパ状の開口１４１に嵌合された場合、傾斜突設部３３２から下方に伸長する突出部３３８だけが収納室１３内に露出した状態になるのを除けば接合スリーブ３３は全ての部位が突出穴１４に収納されるようになる。この新規な設計により、収納室１３の薬液貯蔵空間が大きく取れるようになる。 Since the shape of the inclined projecting portion 332 coincides with the engagement edge where the storage chamber 13 and the projecting hole 14 are joined, the inclined projecting portion 332 at the bottom end of the joining sleeve 33 is formed on the projecting hole 14. When fitted into the trumpet-shaped opening 141 at the bottom end, all the joining sleeves 33 are formed except that only the protruding portion 338 extending downward from the inclined protruding portion 332 is exposed in the storage chamber 13. The part is received in the protruding hole 14. With this new design, the chemical storage space in the storage chamber 13 can be made large.
また、図３のように、押圧レバー２０が前方へ押されて特定位置に到着するまで押し付けられると、押圧レバー２０の上部のほぞ２４が貫通穴３３６を通過して収納部３３４に収納され、係合部３３５の上端面と係合状態になる。また、押圧レバー２０の先端に位置する弾性ピストン２５は、収納室の突出部３３８に対して抵触状態になり、やや変形する。 As shown in FIG. 3, when the pressing lever 20 is pushed forward until it reaches a specific position, the tenon 24 on the upper side of the pressing lever 20 passes through the through hole 336 and is stored in the storage portion 334. The engagement portion 335 is engaged with the upper end surface. In addition, the elastic piston 25 located at the tip of the pressing lever 20 is in a state of conflict with the protruding portion 338 of the storage chamber and slightly deforms.
そして、図５のように、押圧レバー２０が引き戻されると、針セットも連動して突出穴１４から脱離し、針セットは、図５のように、注射筒の収納室に埋没されるようになる。このとき、圧力を受けて変形していた弾性ピストン２５が原状に復帰して突出部３３８に対して付勢力を行使するようになるので、これにより、収納室１３に収容された針セットが偏移状態になる。
また、傾斜突設部３３２の底縁が、注射筒の内壁から特定距離を保持するため、その偏移角度で、有効に距離を保って偏移することが達成されるので、針３１と注射筒１０内部の係合縁とが互いに係止されて、針３１が再び外部へ押されることはない。
When the pressing lever 20 is pulled back as shown in FIG. 5, the needle set is also detached from the projecting hole 14 in conjunction with the needle set so that the needle set is buried in the storage chamber of the syringe barrel as shown in FIG. Become. At this time, the elastic piston 25 that has been deformed by the pressure returns to its original shape and exercises a biasing force against the protruding portion 338, so that the needle set accommodated in the storage chamber 13 is biased. It becomes a transition state.
In addition, since the bottom edge of the inclined projecting portion 332 maintains a specific distance from the inner wall of the syringe barrel, it is possible to effectively shift while maintaining the distance at the deviation angle. The engaging edge inside the cylinder 10 is locked with each other, and the needle 31 is not pushed outward again.
図６および図７に示すのは、本発明に係わる安全注射器の第２の実施例である。この第２実施例については、第１実施例との相違点は接合スリーブにあり、その他の構成は第１実施例と同様のため、同様の符号を付して、その説明は省略する。 6 and 7 show a second embodiment of the safety syringe according to the present invention. The second embodiment is different from the first embodiment in the joining sleeve, and the other components are the same as those in the first embodiment. Therefore, the same reference numerals are given and description thereof is omitted.
図６に示すように、この第２実施例においては、針セットと注射筒１０との更なる安定的結合が強化される。
図７のように、第２実施例では、接合スリーブ３３ａの円筒状結合部３３１ａと傾斜突設部３３２ａとが当接する所に、外方へ突出する環状突出部３４ａが一体に配設されていて、接合スリーブ３３ａが突出穴１４に嵌入されると、環状突出部３４ａと、突出穴１４の壁縁の係合凹部１５とが互いに係合し合うので、接合スリーブ３３ａと突出穴１４との一層安定した結合状態が達成される。
As shown in FIG. 6, in the second embodiment, further stable coupling between the needle set and the syringe barrel 10 is enhanced.
As shown in FIG. 7, in the second embodiment, an annular projecting portion 34a projecting outward is integrally disposed at a place where the cylindrical coupling portion 331a of the joining sleeve 33a contacts the inclined projecting portion 332a. When the joining sleeve 33a is inserted into the projecting hole 14, the annular projecting portion 34a and the engaging recess 15 at the wall edge of the projecting hole 14 are engaged with each other. A more stable combined state is achieved.
本発明によれば、接合スリーブ３３が突出穴１４に嵌入された時に、漏斗状突出穴１４と、円筒状結合部と傾斜突設部とからなる漏斗状接合スリーブ３３の相互に対応する一体化構成により、接合スリーブの円筒状結合部３３１と傾斜突設部３３２との当接箇所と、突出穴１４のラッパ状の開口１４１とで、互いに適切に位置付けられると共に、組み立てもより正確且つ迅速に行なえる。 According to the present invention, when the joining sleeve 33 is fitted into the projecting hole 14, the funnel-like projecting hole 14 and the funnel-shaped joining sleeve 33 composed of the cylindrical coupling portion and the inclined projecting portion correspond to each other. According to the configuration, the contact portion between the cylindrical coupling portion 331 and the inclined projecting portion 332 of the joining sleeve and the trumpet-shaped opening 141 of the projecting hole 14 are appropriately positioned with each other, and the assembly is more accurately and quickly performed. Yes.
１０ 注射筒
１１ 收束部
１２ 指保持部
１３ 収納室
１４ 突出穴
１４１ ラッパ状の開口
１５ 係合凹部
２０ 押圧レバー
２１ レバー体
２２ 指押圧部
２３ 結合部
２４ ほぞ
２５ 弾性ピストン
３１ 針
３２ 針ベース
３２１ 係合リング
３２２ 雄ねじ
３３，３３ａ 接合スリーブ
３３１ 円筒状結合部
３３２，３３２ａ 傾斜突設部
３３３ 環状凹槽
３３４ 収納部
３３５ 係合部
３３６ 貫通穴
３３７ 雌ねじ
３３８ 突出部
３４ Ｏリング
３４ａ 環状突出
３５ 蓋体
Ａ 錐形状穴
Ｂ 係合機構
DESCRIPTION OF SYMBOLS 10 Injection cylinder 11 Collecting part 12 Finger holding part 13 Storage chamber 14 Projection hole 141 Trumpet-shaped opening 15 Engaging recessed part 20 Pressing lever 21 Lever body 22 Finger pressing part 23 Coupling part 24 Tenon 25 Elastic piston 31 Needle 32 Needle base 321 Engagement ring 322 Male thread 33, 33a Joining sleeve 331 Cylindrical coupling part 332, 332a Inclined projecting part 333 Annular concave tank 334 Storage part 335 Engagement part 336 Through hole 337 Female thread 338 Protrusion part 34 O-ring 34a Annular protrusion 35 Lid A Conical hole B Engagement mechanism
Claims (2)
前記ラッパ状の開口部１４１に隣接した壁面に形成された環状の係合凹部１５に装着されるＯリング３４と、
直線的に移動できるように、注射筒１０の収納室１３に挿設され、一端に該注射筒１０の収納室１３の内壁に緊密に当接しながら摺動できる弾性ピストン２５が設けられ、該弾性ピストン２５の一側にほぞ２４が設けられ、もう一端に指押圧部２２が形成された押圧レバー２０と、
前記注射筒１０内に挿入されるゴム材質からなる接合スリーブ３３を有し、該接合スリーブ３３には軸方向に貫通する収納部が形成され、接合スリーブ３３の上部には先端部に針３１が装着された針ベース３２が設けられると共に、底端には傾斜突設部３３２が形成され、該傾斜突設部３３２の最大半径が注射筒１０の収納室１３の半径より小さく、該傾斜突設部３３２の底端に、外縁から下へ伸びる突片部３３８が形成され、前記接合スリーブ３３が突出穴１４に嵌入されると、傾斜突設部３３２の底面がラッパ状の開口１４１に一致し突出部が収納室１３に露出してなり、注射終了状態では前記弾性ピストン２５に当接する針セットと、
とからなり、前記前記針セットは、針３１と針ベース３２と接合スリーブ３３が組み合わされて構成されており、前記針３１は、前記針ベース３２に固定されていると共に、前記針ベース３２には拡径の円形係合リング３２１が形成されており、針ベース３２の係合リング３２１の下方には、接合スリーブ３３と螺合するための雄ねじ３２２が設けられていることを特徴とする安全注射器。 A collecting portion 11 is formed at one end, a finger holding portion 12 is formed at the other end, a storage chamber 13 is formed inside, and the inside of the collecting portion 11 has a hole diameter smaller than the hole diameter of the storage chamber. A hollow cylindrical syringe barrel 10 having a trumpet-shaped opening 141 formed with a trumpet-shaped opening 141 that is provided with a projecting hole 14 that communicates with the projecting hole 14 and is inclined toward the storage chamber 13;
An O-ring 34 attached to an annular engaging recess 15 formed on a wall surface adjacent to the trumpet-shaped opening 141;
An elastic piston 25 that is inserted into the storage chamber 13 of the syringe barrel 10 and is slidable while being in close contact with the inner wall of the storage chamber 13 of the syringe barrel 10 is provided at one end so as to move linearly. A pressing lever 20 provided with a tenon 24 on one side of the piston 25 and a finger pressing part 22 on the other end;
A joining sleeve 33 made of a rubber material is inserted into the syringe barrel 10, and a housing portion penetrating in the axial direction is formed in the joining sleeve 33, and a needle 31 is provided at the tip of the joining sleeve 33. An attached needle base 32 is provided, and an inclined protruding portion 332 is formed at the bottom end, and the maximum radius of the inclined protruding portion 332 is smaller than the radius of the storage chamber 13 of the syringe barrel 10, and the inclined protruding portion is provided. the bottom end of the section 332, the protruding portions 338 extending downward is formed from the outer edge, when the joining sleeve 33 is fitted to the projecting hole 14, the bottom surface of the inclined protrusion 332 is in a trumpet-shaped apertures 141 one A needle set that is exposed in the storage chamber 13 and that comes into contact with the elastic piston 25 in the injection end state ;
The needle set is configured by combining a needle 31, a needle base 32, and a joining sleeve 33. The needle 31 is fixed to the needle base 32 and is attached to the needle base 32. Is formed with a circular engagement ring 321 having an enlarged diameter, and a male screw 322 for screwing with the joining sleeve 33 is provided below the engagement ring 321 of the needle base 32. Syringe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW094211647 | 2005-07-08 | ||
| TW94211647U TWM281644U (en) | 2005-07-08 | 2005-07-08 | Safety syringe |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006000363U Continuation JP3120587U (en) | 2005-07-08 | 2006-01-20 | Safety syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007117775A JP2007117775A (en) | 2007-05-17 |
| JP4598010B2 true JP4598010B2 (en) | 2010-12-15 |
Family
ID=37155171
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006000363U Ceased JP3120587U (en) | 2005-07-08 | 2006-01-20 | Safety syringe |
| JP2007033413A Expired - Fee Related JP4598010B2 (en) | 2005-07-08 | 2007-02-14 | Safety syringe |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006000363U Ceased JP3120587U (en) | 2005-07-08 | 2006-01-20 | Safety syringe |
Country Status (8)
| Country | Link |
|---|---|
| JP (2) | JP3120587U (en) |
| AR (1) | AR056402A1 (en) |
| BR (1) | BRMU8601416U (en) |
| CO (1) | CO5780139A1 (en) |
| EA (1) | EA010326B1 (en) |
| TW (1) | TWM281644U (en) |
| UY (1) | UY29660A1 (en) |
| ZA (1) | ZA200605506B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102421258B1 (en) * | 2020-04-28 | 2022-07-15 | 재단법인 아산사회복지재단 | Safety syringe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07204268A (en) * | 1993-12-27 | 1995-08-08 | Long-Hsiung Chen | Syringe |
| JP2001037878A (en) * | 1999-07-19 | 2001-02-13 | Lai Yu Hau Chang | Safety syringe |
| JP2003126254A (en) * | 2001-08-27 | 2003-05-07 | Tun Chi Lee | Safety syringe |
| EP1514566A1 (en) * | 2003-09-09 | 2005-03-16 | Ping-Te Huang | Syringe including a retaining element with an integral annular rib |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883471A (en) * | 1988-08-16 | 1989-11-28 | Braginetz Paul A | Disposable shielded medical syringe |
| CA2127622A1 (en) * | 1993-07-09 | 1995-01-10 | Katsutoshi Kurose | Syringe assembly |
| DE19705892C1 (en) * | 1997-02-15 | 1998-11-12 | Siekmann Gmbh | Universal safety syringe |
| US5899883A (en) * | 1998-07-08 | 1999-05-04 | Jinq Shing Chern | Safety syringe |
| TWM244916U (en) * | 2003-11-07 | 2004-10-01 | Fu-Yi Chen | Safety syringe capable of preventing retraction of needle during suction of medicine or injection |
-
2005
- 2005-07-08 TW TW94211647U patent/TWM281644U/en not_active IP Right Cessation
-
2006
- 2006-01-20 JP JP2006000363U patent/JP3120587U/en not_active Ceased
- 2006-06-26 EA EA200601052A patent/EA010326B1/en not_active IP Right Cessation
- 2006-06-28 AR ARP060102792A patent/AR056402A1/en active IP Right Grant
- 2006-07-03 BR BRMU8601416-1U patent/BRMU8601416U/en not_active IP Right Cessation
- 2006-07-04 ZA ZA200605506A patent/ZA200605506B/en unknown
- 2006-07-07 CO CO06065824A patent/CO5780139A1/en not_active Application Discontinuation
- 2006-07-07 UY UY29660A patent/UY29660A1/en not_active Application Discontinuation
-
2007
- 2007-02-14 JP JP2007033413A patent/JP4598010B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07204268A (en) * | 1993-12-27 | 1995-08-08 | Long-Hsiung Chen | Syringe |
| JP2001037878A (en) * | 1999-07-19 | 2001-02-13 | Lai Yu Hau Chang | Safety syringe |
| JP2003126254A (en) * | 2001-08-27 | 2003-05-07 | Tun Chi Lee | Safety syringe |
| EP1514566A1 (en) * | 2003-09-09 | 2005-03-16 | Ping-Te Huang | Syringe including a retaining element with an integral annular rib |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007117775A (en) | 2007-05-17 |
| AR056402A1 (en) | 2007-10-10 |
| CO5780139A1 (en) | 2007-07-31 |
| TWM281644U (en) | 2005-12-01 |
| UY29660A1 (en) | 2007-11-30 |
| EA010326B1 (en) | 2008-08-29 |
| ZA200605506B (en) | 2007-09-26 |
| BRMU8601416U (en) | 2007-02-27 |
| JP3120587U (en) | 2006-04-13 |
| EA200601052A1 (en) | 2007-04-27 |
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