CN105288790B - syringe - Google Patents

syringe Download PDF

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Publication number
CN105288790B
CN105288790B CN 201410298104 CN201410298104A CN105288790B CN 105288790 B CN105288790 B CN 105288790B CN 201410298104 CN201410298104 CN 201410298104 CN 201410298104 A CN201410298104 A CN 201410298104A CN 105288790 B CN105288790 B CN 105288790B
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inner
ring
spiral
outer
portion
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CN 201410298104
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Chinese (zh)
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CN105288790A (en )
Inventor
叶进民
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群康生技股份有限公司
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Abstract

本发明是种注射器,用以结合药剂瓶与针头使用,该注射器包含外护壳、接合套环、药瓶套壳、内套管、双向螺旋导引管组、螺接环、单向棘轮、螺旋推杆与注射推杆组,接合套环设于外护壳前端,并结合药瓶套壳组设药剂瓶,外护壳内部组设内套管、双向螺旋导引管组、螺接环、单向棘轮、螺旋推杆与注射推杆组等,使其能直向快速后拉注射推杆组,再直向按压注射推杆组注射,并利用双向螺旋导引管组的大螺距行程构造,搭配螺接头与螺旋推杆间的小螺距行程构造,将直向按压力量转换为旋转力量,结合大行程旋转推力转换至小行程旋转的注射推力,使其达到定量注射药剂的目的,且以循环开闭的简便操作方式达到省力的功效。 The present invention is a kind of syringe, with the needle for use in conjunction with a vial, the syringe comprising an outer sheath, collar engaging vial sleeve, inner sleeve, the bidirectional spiral guiding tube group, screw-on ring, one-way ratchet, spiral injection plunger push rod group, an outer sleeve disposed around the sheath distal end, and is provided in conjunction with the vial of a vial set casing, an outer sheath inner sleeve disposed inside the group, the bidirectional spiral guiding tube group, screw-on ring , one-way ratchet, screw ram of the injection plunger group and the like, so that the pull stroke after the large pitch can be set straight bolus injection plunger, an injection plunger is pressed again straight injection group, and the bidirectional spiral guide tube bank structure between the small pitch stroke configuration, with a screw joint with the screw plunger, the pressing force is converted straight rotating force, a large stroke in conjunction with the rotation thrust conversion to an injection force to rotate a small stroke, so as to achieve the purpose of injecting a drug quantitation, and in a simple manner to achieve the effect of opening and closing cycles effort.

Description

注射器 syringe

技术领域 FIELD

[0001]本发明是关于一种注射器,尤指一种兼具安全控制注射剂量功能以及操作省力功能的注射器。 [0001] The present invention relates to a syringe, particularly to a function of the injected dose of both safety control and operation of the syringe saving function.

背景技术 Background technique

[0002]为了因应药剂定量注射、计数注射次数以及注射器能够有限重复再利用等使用目的,目前已知的注射器概有计量型注射器与计次型注射器两种型式。 [0002] In response to the hoppers injection, the syringe can be counted and a limited number of injections repeated re-utilization purpose, currently known metering syringe type injector Almost total time with two types of syringes. 其中,已知的计量型注射器组成构造中,其主要于一注射器外壳内装设一组由多个驱动部件组成的驱动机构连接一推杆,借以在注射器外壳中装设药剂瓶,于注射器外壳前端装设针头,针头连接药剂瓶, 于注射时,针头刺入人体预定部位,经按压推杆后端,使推杆经由带动驱动机构的驱动部件连动控制,进而推动药剂瓶内的活塞移动预定的行程而通过针头输出预定剂量的药剂。 Wherein the configuration of the known composition metering syringe type, which is mounted in a main injector housing a set of drive means driven by a plurality of components is connected to a push rod, so as to mount the medicine bottle in a syringe housing, the front end of the syringe housing mounted needle, a needle connected to the drug vial, at the time of injection, a predetermined portion of the needle inserted into the body, by pressing the rear end of the push rod, the push rod via a drive member driving the driving mechanism of the interlocking control, and further push the piston moves a predetermined medicament vial the output stroke of a predetermined dose of medicament through the needle. [0003]前f已知计量型注射器虽达到定量输出药剂的目的,但是该注射器在使用操作的过程中,因受限于注射器的驱动机构各驱动部件间连动的牵制,造成该注射器在注射药剂时有操作费力的问题。 [0003] f is known before the metering syringe, although the purpose of the quantitative output of the agent, but the use of the injector during the operation, due to limited among the syringe driving member driving mechanism interlocked contain, causing the injector injection there are problems when operating laborious agents.

发明内容 SUMMARY

[0004] 本发明的目的是提供一种注射器,以解决改善现有计量型注射器操作费力的问题。 [0004] The object of the present invention is to provide a syringe in order to solve the problem to improve the conventional syringe metering laborious operation.

[0005] 本发明所提出的技术解决方案是:提供一种注射器,是用以结合药剂瓶与针头使用,该注射器是包含: [0005] The proposed technical solution of the present invention are: to provide a syringe, is used in conjunction with the vial using a needle, the injector comprising:

[0006] 一外护壳,是一前端与后端形成开口的中空体; [0006] an outer sheath, a front and rear ends of the hollow body forming an opening;

[0007] 一接合套环,是组设于外护壳前端,该接合套环内部具有一内环部,该内环部中形成一具有多个单斜向棘齿的单向棘齿槽; [0007] engaging a collar is provided in the group of distal outer sheath, the interior of the collar having an inner engaging portion, the inner portion is formed in a one-way ratchet groove having a plurality of inclined ratchet teeth;

[0008] 一药瓶套壳,是组接于接合套环前端,用以将所述药剂瓶固定其中,药瓶套壳前端可供所述针头可拆组地套组其上; [0008] a vial casing, is assembled with the collar engaging the front end, fixed to the vial wherein the vial casing for the front end of the needle to releasably kit group thereon;

[0009] —内套管,是装设于外护壳内,该内套管前端固定于接合套环内; [0009] - the inner tube, the outer protective housing is mounted to the inner sleeve distal end is fixed to the inner engagement collar;

[0010] 一双向螺旋导引管组,其包含一外螺旋导管与一内螺旋导管,外螺旋导管装设于内套管内,所述外螺旋导管包含有一螺管部以及一成形于螺管部前端的管端,螺管部内周壁形成一螺旋导槽,管端外周面形成多个单斜向棘齿弹片,该些棘齿弹片分别抵接于接合套环的单向棘齿槽的单斜向棘齿上,使外螺旋导管仅能单向旋转,所述内螺旋导管装设于内套管与外螺旋导管内,内螺旋导管前段外周面设有多个螺旋导块,螺旋导块置入外螺旋导管的螺旋导槽,使内螺旋导管能于外螺旋导管中旋转行进一预定行程距离,内螺旋导管后段内部形成一具有多个单斜向棘齿的单向棘齿槽; [0010] a bi-helical guide tube set comprising a catheter and an outer helical coil within the catheter, the catheter is mounted on an outer coil inner sleeve, said outer spiral duct comprising a solenoid portion and a tubular portion formed at the screw the distal tube end, the inner circumferential wall of the solenoid portion is formed a spiral guide groove, the outer circumferential surface of the pipe end forming an oblique plurality of ratchet teeth shrapnel, the plurality of ratchet teeth engaging tabs abut against the collar of the one-way ratchet groove monoclinic the ratchet teeth, the outer helical guiding only one-way rotation, the spiral inner pipe is mounted within the inner sleeve and outer helical duct, the inner circumferential surface of the helical duct is provided with a plurality of pre-stage helical outer guide blocks, opposed helical guide block the outer helical coil of the catheter guide groove, the inner conduit can be in the outer helical coil of the catheter in a predetermined rotation stroke distance of travel, the interior of the inner conduit section is formed a coil having a plurality of ratchet teeth obliquely unidirectional ratchet grooves;

[0011] 一螺接环,是组设定位于外螺旋导管的管端中,该螺接环中形成一螺孔; [0011] a screw-on ring, the group setting is located on the outer end of the spiral conduit pipe, which is screwed a threaded hole formed in the ring;

[0012] 一单向棘轮,是装设于内螺旋导管的单向棘齿槽中,该单向棘轮包含一轮体以及多个成形于轮体外周面的单斜向棘齿弹片,轮体中形成一中孔,所述单向棘轮的单斜向棘齿弹片与所述内螺旋导管的单向棘齿槽中的单斜向棘齿相啮合; [0012] a one-way ratchet is mounted in a one-way ratchet groove inner helical conduit, which comprises a one-way ratchet member and a plurality of ratchet teeth formed in a single elastic piece oblique outer peripheral surface of the wheel, the wheel a hole formed in the one-way ratchet single oblique ratchet shrapnel single ratchet one-way ratchet groove oblique conduit in the inner helical engagement;

[0013] —螺旋推杆,其包含有一剂量控制段,于剂量控制段外周面设有螺纹,螺旋推杆中形成轴孔,螺旋推杆是装设于双向螺旋导引管组内,螺旋推杆的剂量控制段螺接通过螺接环内部,且用以伸入所述药剂瓶内施以推力;以及 [0013] - spiral pusher, which includes a dose control segment, the control segment in the outer peripheral surface of the dosage shaft hole is provided, the helical thread pusher, the pusher is formed in a spiral is mounted in a bidirectional spiral guide tube group, auger dose control lever segment connected to the internal ring is screwed by screwing, and extending into the drug vial to thrust applied; and

[0014] —注射推杆组,其包含一注射推杆与一推杆端盖,注射推杆包含一杆体与一设于杆体后端的按压端部,注射推杆的杆体穿过固接于单向棘轮的中孔中,且杆体是能轴向滑移地穿设于螺旋推杆的轴孔中,注射推杆的杆体后端及按压端部位于内螺旋导管外,推杆端盖套设于注射推杆的按压端部外侧,内螺旋导管后端枢设于推杆端盖中,使注射推杆组结合单向棘轮、双向螺旋导引管组、螺接环与螺旋推杆能循环开闭动作。 [0014] - injection ram the group comprising an injection plunger with a plunger end cap, the injection plunger comprises a body and a pressing end portion provided at the rear end of the shaft, the shaft passing through the injection plunger fixed to a single in the ratchet hole, and the shaft is axially slidably disposed through the axial hole in the coil of the push rod, and the rear end of the pressing rod end of the injection plunger is located within the outer conduit spiral pusher cap sleeved pressing the outer end portion of the injection plunger, the rear end of the catheter the push rod is pivotally arranged inside the coil end cap, the injection plunger way ratchet binding group, two-way spiral guiding tube group, and the helical screw-on ring pusher cycle can opening and closing operations.

[0015]如上所述的注射器中,所述内套管后端形成一逆止键以及一限位挡缘,所述内螺旋导管后段外周面形成多个逆止环纹且设有一预定长度的轴向导槽,逆止键能抵止于内螺旋导管的逆止环纹处阻止内螺旋导管朝前运动,且逆止键变换至轴向导槽处,使内螺旋导管能被驱动朝前运动,所述限位挡缘限制内螺旋导管后移的位置。 [0015] The syringe as described above, the rear end of the inner sleeve and a bond is formed a limit stop check edge, an outer peripheral surface of the rear stage inner helical duct is formed with a plurality of check rings and a predetermined length shaft guide grooves, key check can check against ending at the ring inner helical coil within the catheter prevents the catheter moves forward and the check key transformation to a shaft guide groove at the inner helical conduit can be driven forward motion after the shift position within the helical conduit, said limit stop limiting edge.

[0016]如上所述的注射器中,螺旋推杆的轴孔与注射推杆的杆体形状为相对应的非圆形。 Syringe [0016] As described above, the shaft opening of the spiral shape of the push rod and the injection rod body to correspond to the push rod of non-circular.

[0017] 如上所述的注射器中,所述螺接环外周面形成一轴向延伸的定位凸部,所述外螺旋导管的管端内壁形成定位凹部,通过相对应的定位凸部与定位凹部的结合,使螺接环定位于外螺旋导管的管端内。 [0017] The syringe as described above, the screw-on ring outer peripheral surface of the positioning projecting portion an axially extending inner wall of the outer end of the spiral tube catheter positioning recesses are formed by the corresponding positioning protrusion and the positioning recess portion combination of the screw-on ring is positioned within the outer end of the spiral tube of the catheter.

[0018]如上所述的注射器中,所述接合套环前后端分别为一接合环部与一组接环部,接合环部置入组设于外护壳内,所述接合套环于内环部与接合环部之间设有多个卡钩,接合套环于接合环部与内环部之间装设一内环圈;所述内套管伸入接合套环内部的前端设有卡槽,卡槽提供接合套环的卡钩对应卡入其中,内环圈套设于卡钩外侧,使内套管与接合套环接合固定。 [0018] The syringe as described above, the front and rear ends engaging the collar an engaging ring are assembled with a portion of the ring portion, the ring engagement portion provided in the outer casing into groups housing, said collar engaging in is provided between the ring portion and the ring portion engages the plurality of hooks engaging a collar is mounted on the inner ring engaged between the ring portion and the inner ring portion; engaging the front end of the inner sleeve extending into the interior of the sleeve is provided with ring slot, slots corresponding to the card providing an engagement hook of the collar into which the inner ring hooks provided outside the trap, that the inner sleeve is fixed to the collar engaging engagement.

[0019] 如上所述的注射器中,所述螺旋推杆的剂量控制段前端装设一活塞顶块。 [0019] The syringe as described above, the front end of said spiral dosage control segment mounted a push rod piston crown block.

[0020] 本发明可达成的有益功效是通过前述注射器的整体组合构造发明,使该注射器组装药剂瓶后,于装设上针头后,能够以直向后拉方式快速地将注射推杆拉至预备注射位置, 并于直向按压注射推杆组时,通过外螺旋导管的螺旋导槽与内螺旋导管的螺旋导块的大螺距行程组合构造,搭配螺接头的螺孔与螺旋推杆的螺纹为小螺距行程组合构造,将直向的按压力量转换为旋转力量,并由大行程旋转推力转换为小行程旋转的注射推力,不仅达到定量注射药剂及良好使用安全性的目的,且该注射器于使用时,通过注射推杆组结合单向棘轮、双向螺旋导引管组、螺接环与螺旋推杆的连动机构发明,使其在定量注射的操作过程中,能以循环开闭的简便的操作方式达到省力的功效。 [0020] The present invention can achieve the beneficial effects of the invention is configured by a combination of the overall syringe so that the syringe vial after assembly, after installation of the needle, the injection can be quickly pulled into the plunger in the pull mode the vertical pilot injection position, and at the time of the injection plunger is pressed straight group, a combination of large pitch stroke helical configuration guide catheter through the outer spiral spiral spiral guide groove of the inner conduit, a threaded screw with a helical screw joint and the push rod a small pitch stroke combination configured to convert the vertical pressing force into rotational force, a large stroke by the rotational force is converted to thrust a small stroke injection rotated, not only to achieve the injectable pharmaceutical form and good quantitative safety purpose, and to the injector when used in conjunction with one-way ratchet lever assembly by injection, bidirectional spiral guiding tube group, the interlocking mechanism is screwed to the invention the push rod and the helical ring, so that in operation in a quantitative injection, can be easy to open and close loop the way to achieve the effect of labor-saving operation.

[0021] 本发明还可通过内套管的逆止键与内螺旋导管的逆止环纹的组合构造,使该注射器的注射推杆组必须朝后拉出至预定位置,方能按压注射推杆组进行注射,且通过内套管后端逆止键搭配内螺旋导管外周面的逆止环纹产生阻挡限位的功能,于内螺旋导管随同注射推杆组被拉出的中途不会因为被误压而回缩,确保该注射器每一次注射剂量皆能达到设定注射剂量。 [0021] The compositions of the present invention may also be configured by the ring inner sleeve backstop with the check key internal helical duct, the injection of the syringe plunger must be set to a predetermined position toward the pull-out, in order to push the pressing injection injection rod group, and generates the barrier function with the limiting inner helical outer catheter check ringed peripheral surface of the inner sleeve through the rear end of the key check, in the conduit along a spiral injection plunger is pulled out of the middle group will not mistakenly pressed and retracted, each injection syringe to ensure that the dose able to meet the set injection dose.

[0022] 此外,本发明注射器还包含一笔盖,使该注射器必须卸下针头的状态下,方能盖上笔盖,确保注射器每一次使用皆能更换新的针头。 State [0022] Further, the present invention further comprises a sum of the syringe cover, the syringe so that the needle must be removed before being covered with the pen cap, to ensure that every use of the syringe needle Jieneng replacement.

附图说明 BRIEF DESCRIPTION

[0023]以下酬仅旨在于对本发明做示意性说明和解释,并不限定本发明的麵。 [0023] The following is intended to be paid only a schematic illustration and explanation of the invention, the present invention is not limited to the surface. 其中, [0024]图1是本发明射獅—较佳实細与针头、针头盖的立体分解示意图。 Wherein, [0024] FIG. 1 is an exit Lion - preferably with a solid fine needle, a perspective exploded view of the needle cover.

[0025]图2是图丨所示注中局部部件的另—观视角度的立体分解示意图。 [0025] FIG. 2 is another partial injection member shown in FIG Shu - a perspective exploded view of viewing angles. _61 難賊細雜针头、盖上笔描麻示細。 _61 difficult thief heteroaryl fine needles, pen cap described fine hemp shown.

[0027]图4是图3所示剖切线位置AA的侧视剖面示意图。 [0027] FIG. 4 is a schematic cross-sectional view taken along line position shown in FIG. 3 AA side view.

[0028]图5是图3所示剖切线位置BB的侧视剖面示意图。 [0028] FIG. 5 is a schematic cross-sectional view taken along line position shown in FIG. 3 is a side view BB.

[0029]图6是图1至图3所示注射器较佳实施例拆下药瓶套壳,以及与笔盖、针头、针头盖的分解示意图。 [0029] FIG. 6 is a view of the syringe shown in Figures 1 to 3 the preferred embodiment of the vial casing is removed, and a pen cap, the needle, the needle cover exploded view.

[0030]图7是图1至图3所示注射器较佳实施例取下笔盖、装上针头与针头盖、并拉出推杆至预定位置时的剖面示意图。 [0030] FIG. 7 is shown in Figures 1 to 3 a schematic cross-sectional view of the syringe when the preferred embodiment of the pen cap is removed, the needle and needle cover mounted, the plunger is pulled out to a predetermined position and FIG.

[0031]图8是图1至图3所示注射器较佳实施例拔下针头盖,于按压推杆开始注射时的剖面示意图。 [0031] FIG 8 is shown in Figures 1 to syringe 3 disconnect the preferred embodiment of the needle cover, a schematic cross-sectional view at the injection start to the pressing ram.

[0032]图9是图1至图3所示注射器较佳实施例于按压推杆注射定量药剂完毕时的剖面示意图。 [0032] FIG. 9 is a view of the syringe shown in FIGS. 1 to 3 the preferred embodiment in a schematic cross-sectional view of the pressing plunger during the injection is completed metered dose embodiment.

[0033]附图标号说明: [0033] Reference numerals:

[0034] 1注射器2药剂瓶 [0034] The syringe 1 Vial 2

[0035] 2A活塞3针头 [0035] 2A needle piston 3

[0036] 4针头盖5笔盖 [0036] 4 5 pen needle cover cap

[0037] 10外护壳11结合端 [0037] 10 in conjunction with the outer end of the sheath 11

[0038] 20接合套环21接合环部 [0038] The collar 20 engages the ring portion 21 engaging

[0039] 22组接环部23内环部 [0039] 22 assembled with the ring portion 23 of the inner ring portion

[0040] 24单向棘齿槽25卡钩 [0040] 24 one-way ratchet groove 25 hook

[0041] 26内环圈 [0041] The inner ring 26

[0042] 30药瓶套壳 [0042] The casing 30 of the vial

[0043] 40内套管41卡槽 [0043] The slot 40 within the sleeve 41

[0044] 42逆止键43限位挡缘 [0044] 42 non-return limit stop key 43 edge

[0045] 50双向螺旋导引管组51外螺旋导管 [0045] 50 2-way screw spiral guide catheter outer tube bank 51

[0046] 511螺管部512环端壁 [0046] The tube portion 511 spiro ring end wall 512

[0047] 513管端514螺旋导槽 [0047] 513 end of the spiral guide groove 514

[0048] 515棘齿弹片516定位凹部 [0048] 515 ratchet teeth 516 positioned recesses shrapnel

[0049] 52内螺旋导管521螺旋导块 [0049] 52 inner helical coil guide catheter 521

[0050] 522逆止环纹523轴向导槽 [0050] 522 the ring 523 check axial guide groove

[0051] 524单向棘齿槽525枢接部 [0051] The one-way ratchet groove 524 pivot portion 525

[0052] 60螺接环61螺孔 [0052] The screw ring 61 is screwed 60

[0053] 62定位凸部 [0053] The positioning convex portion 62

[0054] 70单向棘轮71轮体 [0054] 70 one-way ratchet member 71

[0055] 72单斜向棘齿弹片73中孔 [0055] 72 single leaf spring 73 obliquely ratchet hole

[0056] 80螺旋推杆81剂量控制段 [0056] 80 coil pusher dose control section 81

[0057] 82限位凸缘83轴孔 [0057] The stop flange 83 of the shaft hole 82

[0058] 84活塞顶块 [0058] Block 84 of the piston crown

[0059] 90注射推杆组91注射推杆 [0059] 90 injection of the injection plunger 91 plunger group

[0060] 911杆体912按压端部 [0060] 911 pressing end portion 912

[0061] 913定位挡块92推杆端盖 [0061] 913 positioning stopper cap pusher 92

具体实施方式 detailed description

[0062]以下配合附图及本发明的较佳实施例,进一步阐述本发明为达成预定发明目的所采取的技术手段。 [0062] with the following drawings and preferred embodiments of the present invention, further illustrate the technical means of the present invention to achieve the intended purpose of the invention taken.

[0063]如图1及图2所不,是揭示本发明注射器的一较佳实施例,该注射器1是用以结合药剂瓶2与针头3、针头盖4使用,该注射器1的组成主要包含一外护壳10、一接合套环2〇、一药瓶套壳30、一内套管40、一双向螺旋导引管组50、一螺接环60、一单向棘轮70、一螺旋推杆80 以及一注射推杆组90,或者,该注射器1还进一步包含一笔盖5。 [0063] FIGS. 1 and 2 do not, the syringe is disclosed a preferred embodiment of the present invention embodiment, the injector 1 is used in conjunction with a vial 2 with the needle 3, the use of the needle cover 4, the injector 1 is composed mainly containing an outer sheath 10, a collar engaging 2〇, a vial casing 30, an inner sleeve 40, a two-way spiral guide tube set 50, a ring 60 is screwed, a one-way ratchet 70, an auger push rod lever 80 and an injection group 90, or the sum of the syringe 1 further comprises a further cover 5.

[0064]如图1及图2所不,所述外护壳10是一前后两端皆形成开口的中空体,外护壳10前端为结合端11。 [0064] FIGS. 1 and 2 do not, the outer sheath 10 is a hollow body open front and rear ends are formed, the outer sheath 10 distal end 11 is bound.

[0065] 如图1、图2所示,所述接合套环20包含有一接合环部21、一组接环部22以及一内环部23,所述组接环部22与接合环部21分别位于接合套环20前端与后端,内环部23位于接合套环20的内部,该接合套环20并以接合环部21置入外护壳10的结合端11内部组合,该内环部23中则形成一具有多个单斜向棘齿的单向棘齿槽24。 [0065] As shown in FIG 1, FIG. 2, the clutch ring 20 includes a ring portion 21 engages, a group of mount portion 22 and an inner ring portion 23, the ring portion 22 assembled with the adapter ring portion 21 engage the collar 20 are positioned front and rear ends, located on the inner ring portion 23 engages the interior collar 20, which engages the collar 20 and the ring portion 21 to engage the inserted end of the outer sheath 10 in conjunction with internal combination 11, the inner portion 23 is formed in a one-way ratchet groove 24 having a plurality of ratchet teeth obliquely. 如图3所示,于本较佳实施例中,所述接合套环20于内环部23与接合环部21之间设有多个卡钩25,所述接合套环20于接合环部21与内环部23之间还可进一步装设一内环圈26。 3, in the preferred embodiment according to the present embodiment, the engaging collar 20 to the inner portion 23 and the engagement between the ring portion 21 is provided with a plurality of hooks 25, the engaging collar 20 to engage the ring portion It may be further mounted a ring 26 between the inner 21 and the inner ring portion 23.

[0066] 如图1、图2所示,所述药瓶套壳30是组设于接合套环20前端的接合环部21上,用以将一药剂瓶2固定其中。 [0066] As shown in FIG 1, FIG. 2, the vial casing 30 is set to engage the collar 20 is provided a front end portion of the engaging ring 21 for fixing the 2 wherein a vial. 所述药瓶套壳30前端可供一针头3套组其上。 The vial casing 30 for the front end of a needle 3 which kit.

[0067] 如图1至图3所示,所述内套管40是装设于外护壳10内部,该内套管40前端伸入接合套环20的接合环部21内,且套接于内环部23外侧固定,于本较佳实施例中,内套管40伸入接合套环20中的前端设有卡槽41,卡槽41提供接合套环20的卡钩25对应卡入其中,并由内环圈26套设于卡钩25外侧,而使内套管40与接合套环20接合固定,内套管40的后端则可伸出外护壳10外,内套管40后端形成一逆止键42以及限位挡缘43。 [0067] As shown in FIG. 1 to FIG. 3, the inner sleeve 40 is mounted inside the outer sheath 10, the distal end of the inner sleeve 40 projects into the engagement collar 21 of the adapter ring portion 20, and a socket an inner ring portion 23 is fixed to the outer side, in the present preferred embodiment, the inner sleeve 40 projects into the engaging collar 20 is provided in the front end slot 41, slot 41 provides clutch ring 20 of the hook 25 snaps into a corresponding wherein, by the inner ring 26 is sleeved on the outer side of the hook 25, the inner sleeve 40 engages with the engaging collar 20 is fixed, the rear end of the inner tube 40 can extend out of the outer sheath 10, inner tube 40 forming a rear end of the check key 42 and the limit stop edge 43.

[0068] 如图1至图3所示,所述双向螺旋导引管组50包含一外螺旋导管51以及一内螺旋导管52,所述外螺旋导管51是装设于内套管40内,外螺旋导管51包含有一螺管部5H,螺管部511前端形成一环端壁512以及自环端壁512朝前凸伸的管端513,螺管部511内周壁形成一螺旋导槽514,管端513中外周面形成多个单斜向棘齿弹片S15,管端513内壁设有一轴向延伸的定位凹部516,如图3及图4所示,外螺旋导管51的管端513伸入接合套环2〇的内环部23 中,该些棘齿弹片515分别抵接于接合套环2〇的单向棘齿槽24的单斜向棘齿上,使外螺旋导管51仅能单向旋转。 [0068] As shown in FIG. 1 to FIG. 3, the bidirectional spiral guide tube set 50 comprises a conduit 51 and an outer helical coil within the catheter 52, the outer coil 51 is mounted in the catheter cannula 40, outer helical duct 51 comprises a solenoid unit 5H, the solenoid portion 511 formed at the tip part of the end wall 512, and a loopback end wall 512 toward the lordosis extending pipe end 513, the inner spiral tube portion 511 of the peripheral wall is formed a helical guide groove 514, tube end 513 of peripheral surface forming a plurality of ratchet teeth shrapnel single oblique S15, the inner wall of the pipe end 513 is provided with an axially extending positioning concave portion 516, as shown in FIG. 3 and FIG. 4, the pipe end 513 of the catheter 51 extends into the outer spiral engaging the collar portion 2〇 inner ring 23, the plurality of ratchet teeth 515 abut against the leaf spring engaging the collar on the one-way ratchet groove 2〇 single oblique teeth 24 of the ratchet, so that only a single outer helical conduit 51 rotation.

[0069] 如图丨至图3所示,所述双向螺旋导引管组50中,所述内螺旋导管52是装设于内套管40与外螺旋导管51内,该内螺旋导管5 2前段外周面设有多个螺旋导块5 21,并以螺旋导$ 521置入外螺旋导管51的螺旋导槽514,通过螺旋导块521与螺旋导槽514的配合,使内螺旋导管52能于外螺旋导管51中旋转行进一预定行程距离,内螺旋导管52后段外周面形成多个间隔排列的逆止环纹522,且具有一预定长度的轴向导槽523,所述逆止环纹522为单斜向, 内螺旋导管52后段内部形成一具有多个单斜向棘齿的单向棘齿槽524,该单向棘齿槽524的单斜向棘齿与接合套环20中的单向棘齿槽24的单斜向棘齿为相同斜向,内螺旋导管52后端形成一枢接部525,内螺旋导管52的枢接部525能伸出内套管40后端外,内套管40后端的逆止键42能于内螺旋导管52后段的逆止环纹522与伸入轴向导槽523间变换位置。 [0069] FIG Shu to FIG. 3, the bidirectional spiral guide pipe group 50, the spiral inner conduit 52 is mounted within the sleeve 40 and the outer spiral conduit 51, conduit 52 of the inner spiral an outer circumferential surface provided with a plurality of pre-stage helical guide blocks 521, and guide the spiral guide groove in a spiral into the outer spiral conduit 521 $ 51 514, by the guide block 521 with the helical coil guide groove 514, the inner coil 52 can be the conduit spiral conduit 51 to the outer rotational travel a predetermined stroke distance, the inner helical conduit 52 formed in the outer circumferential surface of the check segment rings spaced over 522, and shaft guide grooves having a predetermined length 523, the check ringed 522 is a single oblique, spiral conduit 52 after the one-way ratchet groove formed in the inner segment having a plurality of ratchet teeth 524 inclined, the one-way ratchet groove 524 engages with the ratchet teeth oblique collar 20 single one-way ratchet groove 24 is obliquely ratchet same oblique rear end of the inner conduit 52 is formed a spiral pivot portion 525, pivoting the inner spiral portion 525 of the conduit 52 can extend outside the rear end of the inner tube 40, the rear end of the inner sleeve 40 a check key 42 can change position 523 in the ring 522 and the check shaft extending into the spiral guide groove 52 after the conduit section. 如图3及图5 所示,当逆止键42伸入轴向导槽523中,内螺旋导管52方能沿轴向朝前运动,逆止键42抵接内螺旋导管52的逆止环纹522时,则能阻止内螺旋导管52被误压而朝前轴向直线运动。 3 and, when the check button 42 projects into the shaft guide grooves 523, the forward movement of the helical conduit 52 in order in the axial direction, the check button 42 abuts the inner conduit 52 with a check spiral rings 5 522, it can prevent the inner coil and the conduit 52 is mistakenly pressed axially forward linear motion.

[0070] 如图1至图3所示,所述螺接环60是可轴向装设于外螺旋导管51的管端513中,该螺接环60中成一螺孔61,螺孔61的螺距小于螺旋导槽514的螺距。 [0070] As shown in FIG. 1 to FIG. 3, the threaded ring 60 is axially mounted in the outer tube end 513 of the spiral conduit 51, the ring 60 is screwed into a screw hole 61, screw 61 pitch less than the pitch of the helical guide groove 514. 于本较佳实施例中,螺接环60外周面形成一轴向延伸的定位凸部62,与外螺旋导管51中的定位凹部516对应配合,使螺接环60与外螺旋导管51结合一起。 In the present preferred embodiment, the threaded 60 the outer circumferential surface of the ring forming the positioning protrusion portion an axially extending 62, the positioning recess outer helical conduit 51 of 516 corresponds with the screw-on ring 60 and the outer helical conduit 51 in combination with .

[0071]如图1至图3所示,所述单向棘轮70是装设于所述内螺旋导管52的单向棘齿槽524 中,该单向棘轮70包含有一轮体71以及多个成形于轮体71外周面的单斜向棘齿弹片72,轮体71中形成一中孔73,中孔73形状对应于螺旋推杆80的非圆形轴孔,该单向棘轮70的单斜向棘齿弹片72与外螺旋导管51管端513的单斜向棘齿弹片515为相同斜向,如图5所示,所述单向棘轮70的单斜向棘齿弹片72与所述内螺旋导管52的单向棘齿槽524中的单向棘齿相啮合。 [0071] As shown in FIG. 1 to FIG. 3, the one-way ratchet 70 is mounted on a one-way ratchet groove 524 of the inner helical conduit 52, the one-way ratchet 70 and 71 includes a plurality dome shaped single oblique ratchet wheel 71 in the outer peripheral surface 72, a bore 73 formed in body 71, holes 73 in a non-circular shape corresponding to the shaft hole 80 of the coil pusher, the ratchet wheel 70 of the one-way single tabs 72 and ratchet teeth oblique outer end of the spiral conduit 51 ratchet teeth 513 of a single elastic piece 515 obliquely inclined to the same, as shown in FIG. 5, the one-way ratchet teeth 70 of the ratchet obliquely to the dome 72 one-way ratchet one-way ratchet grooves 524 in the inner helical conduit 52 engages.

[0072]如图1至图3所示,所述螺旋推杆80具有一剂量控制段81,于剂量控制段81外周面设有螺纹,螺旋推杆80中段于剂量控制段81的侧缘形成限位凸缘82,螺旋推杆80中形成非圆形的轴孔83,螺旋推杆80是设于双向螺旋导引管组50内,螺旋推杆80的剂量控制段81螺接通过螺接环60内部,且能伸入药剂瓶2内直接推抵活塞2A,或者,所述螺旋推杆80的剂量控制段81前端可装设一活塞顶块84,使螺旋推杆80经由活塞顶块84间接推抵药剂瓶2内的活塞2A。 [0072] As shown in FIG. 1 to FIG. 3, the push rod 80 having a helical dose control section 81, the outer peripheral surface 81 provided with a threaded dose control period, the coil pusher 80 in the middle dose control section 81 forming the side edges limiting flange 82, the coil pusher non-circular shaft hole 80 is formed in 83, the coil 80 is disposed within the ram bidirectional spiral guide tube group 50, the coil pusher 81 screwed dose control section 80 is connected by screwing inner ring 60, and can be pushed directly against the second piston extends into the vial. 2A, or the helical push rod 80 distal end 81 of the dose control segment may be installed a piston crown block 84, the coil 80 via a push rod piston crown block indirect pushing vial 84 within the piston 2 2A.

[0073] 如图1至图3所示,所述注射推杆组90包含有一注射推杆91与一推杆端盖92,该注射推杆91包含一杆体911以及一设于杆体911后端的按压端部912,杆体911的断面形状相应于螺旋推杆80中的非圆形轴孔83以及单向棘轮7〇中的非圆形中孔73形状,于本较佳实施例中,所述杆体911的非圆形断面形状为齿轮形、多边形,或为其他几何形状,注射推杆91以其杆体911可轴向滑移地穿设于螺旋推杆80的轴孔83,且杆体911穿过单向棘轮70的中孔73中予以固定,其中通过杆体911上形成一定位挡块913,以定位挡块913将单向棘轮70固定于杆体911上,注射推杆91的杆体911具有按压端部912的后端伸出内螺旋导管52外,该推杆端盖92是套设于注射推杆91的按压端部912外侧,内螺旋导管52后端的枢接部枢设于推杆端盖92中。 [0073] As shown in FIG. 1 to FIG. 3, the injection plunger 90 includes a set of injection plunger end cap 91 and a plunger 92, the injection plunger 91 comprises a rod 911, and 911 provided on a rear end of the rod pressing end portion 912, the rod 911 corresponding to the sectional shape of the coil pusher 83 in a non-circular shaft hole 80 and the one-way ratchet shape 7〇 73 in a non-circular bore, in the present preferred embodiment, the non-circular cross-sectional shape of a gear shaft 911, polygonal, or other geometric shapes, the injection plunger 91 with its rod 911 axially slidably disposed through the shaft hole 80 of the coil pusher 83, and the rod 911 through body through the one-way ratchet in the hole 73 70 to be fixed, wherein a positioning stopper 913 is formed by a rod member 911 to positioning stopper 913 to the one-way ratchet wheel 70 fixed to the shaft 911, the injection plunger rod 91 911 a pressing rear end portion of the coil 912 extends within the outer conduit 52, the end cap 92 of the push rod 912 is sleeved on the outer end of the injection plunger 91 is pressed, the pivot portion pivoting the rear end of the inner coil 52 is provided in the catheter rod ends of cover 92.

[0074] 关于本发明注射器的使用情形,如图3及图6所示,组装药剂瓶2时,其是在药瓶套壳3〇拆下的状态,将药剂瓶2具有活塞2A的一端伸入接合套环2〇内定位,螺旋推杆80侧端的活塞顶块84伸入药剂瓶2内抵接活塞2A,再将药瓶套壳30套设于药剂瓶2外侧,通过药瓶套壳30与结合套环20的结合,使药剂瓶2固定于注射器1中。 [0074] The usage of the present invention on the syringe, as shown in FIG. 3 and FIG. 6, the drug vial assembly 2, which is in the vial casing 3〇 removed state, the chemical bottle 2 having a projecting end of the piston. 2A 2〇 into engagement collar positioned within the coil-side end of the push rod 80 of the piston crown block 84 extends into the vial inner 2A abuts the piston 2, and then the vial 30 is sleeved on the casing 2 outside of a vial, the vial casing by 30 in conjunction with the collar 20 bound the vial 2 is fixed to the syringe 1. 未注射时,针头3以及针头盖4未组设于药瓶套壳30上组接药剂瓶2的状态下,先将笔盖5套设于药瓶套壳30外侧。 When not injected, the needle 3 and the needle cover 4 is not provided on the bottle groups casing 30 in a state assembled with the vial 2, the first pen cap 305 is sleeved on the outer casing of the vial.

[0075] 准备注射时,如图3及图7所示,取下笔盖5,装上针头3及针头盖4,针头3—端插入药剂瓶2内,且通过针头盖4罩盖于针头3外侧,避免使用者被针头3误刺。 [0075] When preparing an injection, as shown in FIG. 3 and FIG. 7, the pen cap 5 is removed, the needle 3 and the needle mounted on the cap 4, the needle 2 is inserted into the end of 3- vial, through the needle and the cover cap 4 to the needle 3 outside, the user is to avoid erroneous puncture needle 3. 其次,将注射推杆组90沿轴向朝后直向快速拉开至预定位置,直至内螺旋导管52外周面的螺旋导块521移动至接触内套管40后端限位挡缘43处卡住停止。 Next, the injection plunger 90 is axially set back towards the straight quickly opened to a predetermined position, until the helical coil guide catheter 52 within the outer peripheral surface of the sleeve 521 moved into contact with the limit stop 40 at the rear edge of the card 43 live stop. 于注射推杆组9〇后拉的过程中,同时带动内螺旋导管52朝后运动及于外螺旋导管51内部产生空转,内套管40后端的逆止键42可于内螺旋导管52的逆止环纹522处产生弹跳而发生声音,并通过内套管40后端的逆止键42抵接于内螺旋导管52的逆止环纹522处限位,产生阻止注射推杆组90被误压而驱动内螺旋导管52 朝前轴向直线运动的功能,使注射推杆组90在朝后拉出的过程中,不会被误压而回缩。 In the process of pulling the plunger after the injection 9〇 group, while driving conduit 52 toward the inner helical motion and idles inside the outer spiral conduit 51, the rear end of the inner sleeve 40 in the check button 42 may be an inverse of the helical conduit 52 locking the ring 522 occurs bouncing sound, and the inner sleeve 40 through the rear end of the check to the check button 42 abuts the stop ring groove 522 of the spiral conduit 52, plunger group 90 is generated to prevent mistaken injection pressure helically conduit 52 axially forward within the drive function of linear motion of the injection ram during moving group 90 drawn in, and not be mistaken pressed retracted.

[0076]于注射时,如图8及图9所示,拔下针头盖,以针头3刺入人体预定注射部位,再按压注射推杆组90开始注射,其中通过直向朝前按压注射推杆组90的动作,并经由推杆端盖92 推动内螺旋导管52,其中,内套管40后端的逆止键42进入内螺旋导管52的轴向导槽523处, 使内螺旋导管52可与注射推杆组90—同朝前直向运动,同时通过内螺旋导管52外周面的螺旋导块5M驱动外螺旋导管f51定点顺向旋转,直至内螺旋导管52于外螺旋导管51完成行进一行程距离,注射推杆组90伸入外壳体10内闭合,外螺旋导管51顺向旋转时一并带动螺接环60旋转,且经由螺接环60旋转驱动螺旋推杆80旋转前进而对药剂瓶2内的活塞2A施以推力,使药剂瓶2内的药剂通过针头3输出。 [0076] at the time of injection, as shown in FIG. 8 and FIG. 9, disconnect the needle cover, the needle 3 inserted into the body to a predetermined site of injection, the injection plunger group 90 and then pressing the injection start, wherein the injection by pressing the pushing straight forward group of the operating lever 90, the push rod and the end cap 92 via a conduit 52 to promote the coil, wherein the rear end of the inner sleeve 40 into the helix check key 42 and guide groove 523 of the catheter shaft 52, the inner conduit 52 may be helical 90- injection plunger with the forward set of vertical movement, through the outer spiral guide blocks 5M outer circumferential surface of the inner driving coil spiral conduit 52 conduit f51 pointing forward rotation until the inner conduit 52 to the outer helical coil of the catheter 51 to complete a travel itinerary distance, the injection plunger 90 extends into the housing body group 10 is closed, together with the forward rotation drive screw when the outer conduit 51 connected to the helical ring 60 is rotated, and the screw-on ring 60 is rotated via the driving coil while the ram 80 is rotated and advanced drug vial 2. 2A piston in the applied force, the medicine within the drug vial 2 through a needle 3 output.

[0077] 前述中,通过外螺旋导管51内部预定行程距离的螺旋导槽514与内螺旋导管52外周面的螺旋导块521的配合,以及装设于外螺旋导管51中的螺接环60螺接螺旋推杆80的配合,使按压注射推杆组90—次仅能直向推进该预定行程的距离,并带动螺接环60驱动螺旋推杆80同动旋转一圈即停止,进而控制药剂瓶2输出设定的注射剂量。 [0077] The foregoing, by fitting spiral guide block 521 is a helical guide groove 514 and the outer circumferential surface of the outer spiral catheter 51 inside a predetermined travel distance within the spiral conduit 52, and is mounted on an outer spiral conduit 51 screwing ring 60 spiro contact with the coil plunger 80, the pressing lever assembly 90- injection times only the straight advancing distance of a predetermined stroke, and to drive the helical screw-on ring 60 drives rotation of the movable ram 80 with the stop, then control agent bottles 2 output setting of the injected dose. 另一方面,通过外螺旋导管51的螺旋导槽514与内螺旋导管52的螺旋导块521的大螺距行程组合构造,搭配螺接环60的螺孔与螺旋推杆80的螺纹为小螺距行程组合构造,而以大行程旋转推力转换为小行程旋转的注射推力,使该注射器1于使用过程中具有省力的功效。 On the other hand, is configured by a combination of large pitch helical travel of the guide block 521 and the helical guide groove 514 of the outer helical coil of the catheter 52 of the catheter 51, the ring 60 is screwed with the screw ram 80 and the helical thread pitch smaller stroke combination structure, and a large rotary stroke injection thrust force is converted to rotating a small stroke, so that the syringe 1 in the course of the effort has efficacy.

[0078]于注射完毕后,先将针头盖4套合于针头3外侧,再自注射器1 一同拔下针头3与针头盖4,将笔盖5盖合于注射器1的药瓶套壳30外侧,确保下一次使用,皆能更换新的针头3使用。 [0078] After injection in, first needle cover 3 is fit into the outer needle 4, and then disconnect the needle from the syringe 1 with the needle cover 3 and 4, the pen capping the lid 5 to the outer casing 30 of the syringe 1 vial of , to ensure that the next time you use, able to replace the use of a new needle 3. 该注射器1于使用时,通过注射推杆组90结合单向棘轮70、双向螺旋导引管组50、螺接环60与螺旋推杆80的连动机构发明,使其在每一次定量注射的操作过程中,能以循环开闭方式便于使用者的操作使用。 The syringe 1 at the time of use by injection in conjunction with one-way ratchet lever assembly 90 70, the bidirectional spiral guide tube groups 50, 60 of the helical screw-on ring pusher 80 the interlocking mechanism of the present invention, each injection so that it is quantitative during operation, can be opened and closed in a cyclic manner using a user easy operation. 另利用螺旋推杆80的剂量控制段81外周面的螺纹圈数与螺距依药剂瓶2内的药剂容量设定注射次数以及注射剂量,使该注射器1具备固定剂量注射与自动计次使用的功能。 Another push rod 81 by the spiral outer circumferential surface of the dose control section 80 of the number of ridges of the pitch and the number of injections set by the injected dose in the capacity of the medicament vial 2, so that the syringe 1 includes a fixed dose injection function and an automatic meter-use . 当该装设有药剂瓶2的注射器1使用次数到达预定次数时,药剂瓶2内的药剂正好用尽,此时,即丢弃注射器1,避免该注射器1被过度使用。 When mounted with the vial using a syringe 2 reaches a predetermined number of times, the drug in the vial 2 just exhausted, this time, disposable syringe 1, the syringe 1 is to avoid excessive use.

[0079]以上所述仅是本发明的较佳实施例而已,并非对本发明做任何形式上的限制,虽然本发明己以较佳实施例揭露如上,然而并非用以限定本发明,任何熟悉本专业的技术人员,在不脱离本发明技术方案的范围内,当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。 [0079] The above are only preferred embodiments of the present invention only, do not form any limitation of the present invention, although the present invention has been described by reference to preferred embodiments, but not intended to limit the present invention, any skilled skilled in the art, without departing from the technical scope of the present invention, when some minor modifications may be made using the techniques disclosed content equivalent embodiments or equivalent modifications to change, but all without departing from the technical solutions of the present invention, any simple modifications based on the technical essence of the present invention is made to the above embodiment of the embodiment, the equivalent changes and modifications, provided they fall within the scope of the present invention.

Claims (6)

  1. 1. 一种注射器,是用以结合药剂瓶与针头使用,其特征在于,所述注射器包含: 一外护壳,是一前端与后端形成开口的中空体; 一接合套环,是组设于所述外护壳前端,所述接合套环内部具有一内环部,所述内环部中形成一具有多个单斜向棘齿的单向棘齿槽; 一药瓶套壳,是组接于所述接合套环前端,用以将所述药剂瓶固定其中,所述针头能拆组地套组于所述药瓶套壳前端; 一内套管,是装设于所述外护壳内,所述内套管前端固定于所述接合套环内; 一双向螺旋导引管组,其包含一外螺旋导管与一内螺旋导管,所述外螺旋导管装设于所述内套管内,所述外螺旋导管包含有一螺管部以及一成形于所述螺管部前端的管端,所述螺管部内周壁形成一螺旋导槽,所述管端外周面形成多个单斜向棘齿弹片,所述棘齿弹片分别抵接于所述接合套环的所述单 1. A syringe is used in conjunction with the vial using a needle, wherein the syringe comprises: an outer sheath, is a hollow body open front and rear ends are formed; a clutch ring, a group set the distal outer sheath to the clutch inner ring having an inner ring portion, the inner ring is formed in a one-way ratchet groove portion having a plurality of inclined ratchet teeth; a vial casing, is group connected to the front end of the engaging collar, fixed to said vial wherein, the needle can be removed in groups vial kit of the casing to the distal end; an inner sleeve, is mounted to the outer Support housing, the front end of said inner sleeve is fixed to the inner engagement collar; a bidirectional spiral guide tube set comprising a catheter and an outer helical coil within the catheter, said outer catheter mounted to the inner spiral inner sleeve, said outer spiral duct comprising a solenoid and a tube end portion formed in a front end portion of said solenoid, said solenoid portion peripheral wall forming a spiral guide groove, the outer circumferential surface of the pipe end forming a plurality of monoclinic shrapnel to ratchet, said ratchet teeth of said leaf spring abut on the engagement collar single 棘齿槽的单斜向棘齿上,使所述外螺旋导管仅能单向旋转,所述内螺旋导管装设于所述内套管与所述外螺旋导管内,所述内螺旋导管前段外周面设有多个螺旋导块,所述螺旋导块置入所述外螺旋导管的所述螺旋导槽,使所述内螺旋导管能于所述外螺旋导管中旋转行进,所述内螺旋导管后段内部形成一具有多个单斜向棘齿的单向棘齿槽; 一螺接环,是组设定位于所述外螺旋导管的所述管端中,所述螺接环中形成一螺孔; 一单向棘轮,是装设于所述内螺旋导管的所述单向棘齿槽中,所述单向棘轮包含一轮体以及多个成形于所述轮体外周面的单斜向棘齿弹片,所述轮体中形成一中孔,所述单向棘轮的单斜向棘齿弹片与所述内螺旋导管的单向棘齿槽中的单斜向棘齿相啮合; 一螺旋推杆,其包含有一剂量控制段,于所述剂量控制段外周面设有螺纹,所述螺 Single oblique ratchet ratchet groove so that only the outer spiral conduit unidirectional rotation, the spiral conduit is mounted within the inner sleeve to the outer helical inner conduit, said inner conduit anterior spiral an outer circumferential surface provided with a plurality of helical guide blocks, into the outer helical coil of the spiral guide groove guiding catheter, the catheter can be in the inner helical coil outer conduit rotational travel of the inner spiral after the interior section of the catheter to form a unidirectional ratchet groove having a plurality of inclined ratchet teeth; a screw-on ring, the group setting is located outside of the spiral end of the catheter tube, said spiro ring is formed connection a screw; a one-way ratchet is mounted in the inner helical conduit unidirectional ratchet groove, the one-way ratchet comprising a body and a plurality formed in the outer peripheral surface of the single wheel shrapnel ratchet teeth obliquely, a bore formed in said wheel, said ratchet one-way ratchet teeth inclined obliquely shrapnel single unidirectional ratchet teeth of the ratchet grooves in the spiral conduit is engaged; a coil pusher which includes a dose control section to control the dosage outer circumferential surface of the threaded section, said screw 旋推杆中形成轴孔,所述螺旋推杆是装设于所述双向螺旋导引管组内,所述螺旋推杆的所述剂量控制段螺接通过所述螺接环内部,且用以伸入所述药剂瓶内施以推力;以及一注射推杆组,其包含一注射推杆与一推杆端盖,所述注射推杆包含一杆体与一设于所述杆体后端的按压端部,所述注射推杆的所述杆体穿过固接于所述单向棘轮的所述中孔中,且所述杆体是能轴向滑移地穿设于所述螺旋推杆的所述轴孔中,所述注射推杆的所述杆体后端及所述按压端部位于所述内螺旋导管外,所述推杆端盖套设于所述注射推杆的所述按压端部外侧,所述内螺旋导管后端枢设于所述推杆端盖中,使所述注射推杆组结合所述单向棘轮、所述双向螺旋导引管组、所述螺接环与所述螺旋推杆能循环开闭动作。 Rotary shaft holes formed in the push rod, the push rod is mounted within the coil of the bi-helical guide tube group, the dose of the spiral pusher control section through said screw-threaded inner ring, and with agent into said vial to thrust applied; and a group of injection plunger, an injection plunger comprising a plunger and end cap of the injection plunger comprises a body and a pressing member provided at a rear end of the rod an end portion of the injection plunger through the shaft fixed to the hole in the said one-way ratchet and the shaft is axially slidably disposed through the coil of the push rod said shaft hole, and the rear end of the pressing rod of the injection plunger end positioned outside said inner helical conduit, said ram cap sleeved on the pressing end portion of the injection plunger outside, the rear end of the inner spiral conduit of the push rod is pivoted to the end cap, the injection of the binding set of one-way ratchet pusher, the bidirectional spiral guide tube group, said ring being screwed said coil pusher can be opened and closed loop operation.
  2. 2.根据权利要求1所述的注射器,其特征在于,所述内套管后端形成一逆止键以及一限位挡缘,所述内螺旋导管后段外周面形成多个逆止环纹且设有一轴向导槽,所述逆止键能抵止于所述内螺旋导管的所述逆止环纹处阻止所述内螺旋导管朝前运动,且所述逆止键变换至所述轴向导槽处,使所述内螺旋导管能被驱动朝前运动,所述限位挡缘限制所述内螺旋导管后移的位置。 2. A syringe according to claim 1, wherein said inner sleeve is formed a rear end and a non-return limit stop key edge, said inner helical catheter after the outer peripheral surface section of the plurality of check rings axis and is provided with a guide groove, the check of the check against the bond energy at the ring beyond said inner helical coil within the catheter prevents the catheter moves forward and the check key transformation to the shaft guide grooves at the inner helical conduit can be driven forward movement, the limit stop limiting the edge of the inner spiral catheter displacement position.
  3. 3. 根据权利要求1或2所述的注射器,其特征在于,所述螺旋推杆的所述轴孔与所述注射推杆的所述杆体形状为相对应的非圆形。 3. The syringe of claim 1 or claim 2, wherein the shaft hole of the spiral of the injection plunger and the plunger rod is non-circular shape corresponding to.
  4. 4. 根据权利要求1或2所述的注射器,其特征在于,所述螺接环外周面形成一轴向延伸的定位凸部,所述外螺旋导管的所述管端内壁形成定位凹部,通过相对应的所述定位凸部与所述定位凹部的结合,使所述螺接环定位于所述外螺旋导管的所述管端内。 4. A syringe according to claim 1 or claim 2, wherein said screw-on ring outer circumferential surface is formed an axially extending positioning convex portion, the outer end of the spiral inner wall of said catheter tube positioning recesses formed by corresponding binding the positioning projection and the positioning recess portion, the threaded ring is positioned at the outer end of the spiral conduit within the tube.
  5. 5.根据权利要求4所述的注射器,其特征在于,所述接合套环前后端分别为一接合环部与一组接环部,所述接合环部置入组设于所述外护壳内,所述接合套环于所述内环部与所述接合环部之间设有多个卡钩,所述接合套环于所述接合环部与所述内环部之间装设一内环圈;所述内套管伸入所述接合套环内部的前端设有卡槽,所述卡槽提供所述接合套环的所述卡钩对应卡入其中,所述内环圈套设于所述卡钩外侧,使所述内套管与所述接合套坏接合固定。 The syringe as claimed in claim 4, wherein said front and rear engaging ends respectively, a collar portion and a set of ring engagement contact ring portion, the ring engagement portion is provided in said group into an outer sheath within the engagement collar to the inner ring portion and the plurality of engaging hooks provided between the ring portion, the collar engaging in the engagement portion between the ring portion and the inner ring is mounted a the inner ring; said inner sleeve extends into the distal end of the sleeve engaging the inside of the ring is provided with slots, the slot providing the engagement hook corresponding to the card into the collar wherein the inner ring is provided snare the outside hooks of said card, so that the inner sleeve and fixed to said clutch engagement bad.
  6. 6.根据权利要求5所述的注射器,其特征在于,所述螺旋推杆的剂量控制段前端装设/ 活塞顶块。 6. The syringe as claimed in claim 5, wherein said dose control segment helical distal plunger mounted / piston crown block.
CN 201410298104 2014-06-26 2014-06-26 syringe CN105288790B (en)

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CN106039475A (en) * 2016-05-18 2016-10-26 苏州鹏烨医疗科技有限公司 Injection pen
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279586A (en) * 1992-02-04 1994-01-18 Becton, Dickinson And Company Reusable medication delivery pen
CN1277558A (en) * 1998-01-30 2000-12-20 诺沃挪第克公司 An injection syringe
CN1780652A (en) * 2003-03-03 2006-05-31 Dca设计国际有限公司 Drive mechanish for drug delivery devices.
CN102753214A (en) * 2009-12-01 2012-10-24 贝克顿·迪金森公司 Injection pen with dial back and last dose control
CN203090111U (en) * 2012-11-02 2013-07-31 群康生技股份有限公司 Measuring type injector
CN203090100U (en) * 2012-07-27 2013-07-31 群康生技股份有限公司 syringe
CN103648553A (en) * 2011-05-06 2014-03-19 赛诺菲-安万特德国有限公司 Assembly for a drug delivery device and drug delivery device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279586A (en) * 1992-02-04 1994-01-18 Becton, Dickinson And Company Reusable medication delivery pen
CN1277558A (en) * 1998-01-30 2000-12-20 诺沃挪第克公司 An injection syringe
CN1780652A (en) * 2003-03-03 2006-05-31 Dca设计国际有限公司 Drive mechanish for drug delivery devices.
CN102753214A (en) * 2009-12-01 2012-10-24 贝克顿·迪金森公司 Injection pen with dial back and last dose control
CN103648553A (en) * 2011-05-06 2014-03-19 赛诺菲-安万特德国有限公司 Assembly for a drug delivery device and drug delivery device
CN203090100U (en) * 2012-07-27 2013-07-31 群康生技股份有限公司 syringe
CN203090111U (en) * 2012-11-02 2013-07-31 群康生技股份有限公司 Measuring type injector

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