WO2008040168A1 - Dispositif de mélange de poudre à injection automatique - Google Patents

Dispositif de mélange de poudre à injection automatique Download PDF

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Publication number
WO2008040168A1
WO2008040168A1 PCT/CN2007/002748 CN2007002748W WO2008040168A1 WO 2008040168 A1 WO2008040168 A1 WO 2008040168A1 CN 2007002748 W CN2007002748 W CN 2007002748W WO 2008040168 A1 WO2008040168 A1 WO 2008040168A1
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WO
WIPO (PCT)
Prior art keywords
bottle
solvent bottle
jacket
needle
solvent
Prior art date
Application number
PCT/CN2007/002748
Other languages
English (en)
French (fr)
Inventor
Yuying Ding
Original Assignee
Yuying Ding
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yuying Ding filed Critical Yuying Ding
Publication of WO2008040168A1 publication Critical patent/WO2008040168A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2096—Combination of a vial and a syringe for transferring or mixing their contents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/06—Ampoules or carpules
    • A61J1/062—Carpules
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2006—Piercing means
    • A61J1/201—Piercing means having one piercing end
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2006—Piercing means
    • A61J1/2013—Piercing means having two piercing ends
    • 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
    • A61M5/1782—Devices aiding filling of syringes in situ

Definitions

  • the invention relates to a syringe, in particular to an automatic mixing device for powder injection.
  • Powder syringes are increasingly popular with healthcare professionals and patients due to their ease of use.
  • Powder syringes generally consist of a solute bottle and a syringe or solvent bottle.
  • the existing powder needle syringe solute bottle and the solvent bottle are connected by a tape, and the mixing process is cumbersome, and the mixing process cannot be completed automatically.
  • a powder injection automatic mixing syringe comprising a solvent bottle, a solute bottle and a needle cap, further comprising a solute bottle jacket, a solvent bottle jacket, a rotating jacket, a first push sleeve and a second push sleeve, wherein the solute bottle is placed in the solute In the bottle jacket, the solvent bottle, the first push sleeve and the second push sleeve are placed in the solvent bottle jacket, the rotating jacket is sleeved outside the solvent bottle jacket, and the solute bottle jacket is connected to the solvent bottle jacket .
  • the inner wall of the rotating jacket is provided with a pushing sleeve limiting slot, a second-speed push sleeve limiting slot and a rotating outer casing positioning card, and the first-step pushing sleeve limiting slot and the second-speed pushing sleeve limiting slot are spiral or belt-oriented. An angled arc.
  • a push-pull limit groove and a second-speed push sleeve limit groove are simultaneously opened on the inner wall of the rotating outer casing, and the precision requirements of the first-stage push sleeve limit groove and the second-speed push sleeve limit groove are still high, then processing Complex and costly.
  • the present invention provides an automatic mixing device for powder injection, which is convenient and quick to use, and is convenient and quick to process and has low manufacturing cost.
  • a powder injection automatic mixing device comprising a syringe body with a solute bottle, a solvent bottle, a propulsion mechanism and a needle, and the solute bottle mouth and the solvent bottle mouth are opposite each other.
  • the needle is located between the bottle mouth of the solute bottle and the bottle mouth of the solvent bottle, and the pushing mechanism drives the two ends of the needle to respectively turn on the solute bottle and the solvent bottle to mix the medicine, and the pushing mechanism comprises a rotating jacket, a push sleeve and a second gear. Push sleeve; the second push sleeve can follow the rotation of the rotating jacket, the first push sleeve moves relative to the rotating jacket;
  • the upper end of the sleeve is convexly provided with an upper slope
  • the upper end of the first push sleeve is convexly provided with a lower slope
  • the switch groove having a lower slope than the lower slope and accommodating the upper slope is recessed
  • the mixing step of the mixing device is: a. rotating the rotating jacket to drive
  • the second push sleeve rotates and the upper slope has a downward thrust, and the thrust pushes the first push sleeve downward to make the lower end of the needle open and locate the solute bottle;
  • b. rotate the rotating jacket to the second gear push sleeve
  • the solvent bottle is moved down to open the upper end of the needle to the solvent bottle;
  • the lower syringe body is removed, and the syringe body and the needle positioned thereon constitute a syringe.
  • the syringe body is provided with a needle cap, which is located above the mouth of the solute bottle and abuts against the bottom surface of the first push sleeve; the needle is fixed on the needle cap and can slide through the first push sleeve and the second push sleeve;
  • the thrust generated by the upper slope causes the first push sleeve to press the needle cap to be positioned to snap into the mouth of the solute bottle, while driving the lower end of the needle to move downward to conduct the solute bottle.
  • the solvent bottle is slidably sleeved with a solvent bottle jacket; the solvent bottle jacket is provided with a first longitudinal groove; the first push sleeve is convexly provided with a first positioning card point; the first push sleeve is located in the solvent bottle jacket And the first positioning card point is slidably connected in the first longitudinal slot.
  • the solvent bottle jacket is further provided with a connecting through groove, which comprises a transverse groove and a second longitudinal groove, the second longitudinal groove top communicates with one end of the transverse groove; the second push sleeve protrudes outwardly to have a second positioning card point
  • the second positioning card point is slidable through the connecting slot and connected to the rotating jacket; the connecting slot is designed such that the second positioning card is located in the second longitudinal slot when the second step is dropped into the switch slot.
  • the rotating jacket is provided with a third longitudinal slot, and the second positioning clip protrudes outside the solvent bottle jacket and is connected to the third longitudinal slot.
  • the first longitudinal groove communicates with the bottom surface of the solvent bottle casing
  • the second longitudinal groove communicates with the bottom surface of the solvent bottle casing
  • the second longitudinal groove top end is higher than the first longitudinal groove top end; the upper slope of the lower end of the second thrust sleeve fits and leans Connected to the lower slope of the first pusher.
  • the first longitudinal groove and the second longitudinal groove are coincident.
  • the solvent bottle is a cartridge type solvent bottle having a push plug; the top of the solvent bottle jacket is detachably provided with a jacket cover; and the solvent bottle jacket is provided with an elastic body between the push plug and the jacket cover.
  • the solvent bottle jacket is provided with an observation port for observing whether the solvent of the solvent bottle is completely injected into the solute bottle.
  • the automatic mixing device of the invention is convenient, fast and safe to use, and convenient to process. Speed, low manufacturing cost;
  • the elastic body is arranged.
  • the solvent bottle is automatically driven to move downward to make the upper end of the needle penetrate under the elastic force, and the solvent bottle is automatically placed under the elastic force.
  • the solvent is injected into the solute bottle; in the traditional use process, the solvent bottle must be on, the solvent is automatically injected into the solute bottle under the action of gravity, and the whole process cannot be turned upside down to prevent the mixed medicinal solution from being injected into the solvent bottle; the present invention overcomes In view of the above disadvantages, it is not necessary to limit the positional relationship between the solvent bottle and the solute bottle during use, and the solvent in the solvent bottle can be fully utilized.
  • Figure 1 is a schematic cross-sectional view of an automatic drug mixing device of the present invention.
  • Fig. 2 is a view showing a solvent bottle, a solvent bottle jacket and other structural views of the automatic drug mixing device of the present invention.
  • Fig. 3 is a schematic view showing the main body of the syringe, the needle and other structural parts of the automatic mixing device of the present invention, and Fig. 2 and Fig. 3 are combined to form a complete cross-sectional view of the automatic mixing device.
  • Fig. 4 is a perspective view showing the three-dimensional structure of the first push sleeve of the automatic mixing device of the present invention.
  • Fig. 5 is a perspective view showing the three-dimensional structure of the second-stage push sleeve of the automatic mixing device of the present invention.
  • Fig. 6 is a schematic view showing the principle of connecting the through grooves formed in the solvent bottle jacket of the automatic mixing device of the present invention. detailed description
  • a powder injection automatic mixing device as shown in Figures 1, 2, and 3, includes a syringe body with a solute bottle 1, a solvent bottle 3, a solvent bottle jacket 4, a propulsion mechanism 5 and a needle 6, and a solute bottle 1 bottle mouth It is opposite to the bottle of 2 bottles.
  • the syringe body includes a solute bottle 1, a solute bottle casing 2 that encloses the solute bottle 1, and the remaining components, and the syringe body 2 and the needle 6 cooperate to constitute a syringe.
  • the solvent bottle 3 is a cartridge type solvent bottle, that is, a bottle having no bottom, and a push plug 31 which is sealable and slidably coupled to the solvent bottle 3.
  • the solute bottle outer casing 2 is a stepped sleeve that is small and large, and the solute bottle outer casing 2 has two needle caps 22 in the thin sleeve, the needle cap 22 is provided with a needle cap 21, and the needle 6 is fixed on the needle Cap 21.
  • the thin sleeve of the solute bottle jacket 2 is set as a male screw.
  • the solvent bottle jacket 4 is a stepped sleeve that is large and small.
  • the lower end of the thin sleeve of the solvent bottle outer sleeve 4 is arranged as a female screw, and the thin male screw of the solute bottle outer sleeve 2 is screwed with the thin female screw of the solvent bottle outer sleeve 4 to make the solute bottle outer sleeve 2 and the solvent bottle
  • the outer casing 4 constitutes a detachable structure, and also forms a detachable structure between the main body of the syringe and the outer casing 4 of the solvent bottle.
  • the solute bottle jacket 4 is symmetrically opened with two connections.
  • the through slot includes a transverse slot 41 and a second longitudinal slot 42.
  • the top of the second longitudinal slot 42 communicates with the second end of the transverse slot 41.
  • the lower portion of the second longitudinal groove 42 is defined as the first longitudinal groove 43, that is, the lower portions of the first longitudinal groove 43 and the second longitudinal groove 42 coincide.
  • the solvent bottle jacket has 4 sets of solvent bottles 3, and the top of the solvent bottle jacket 4 is provided with a detachable jacket 44.
  • An elastic body 45 is disposed between the outer cover 44 and the push plug 31.
  • the outer diameter of the elastic body 45 is slightly smaller than the inner diameter of the solvent bottle outer casing 4, and at the same time, the elastic body 45 is not bent and disposed between the solvent bottle outer sleeve 4 and the elastic body 45.
  • Spring jacket 46 is provided.
  • the solvent bottle jacket 4 is provided with observations for observing whether the solvent of the solvent bottle is completely injected into the solute bottle.
  • the propulsion mechanism 5 includes a rotating jacket 51, a pusher sleeve 52, and a second thrust sleeve 53.
  • the rotating outer sleeve 51 can rotate and sleeve the thin sleeve of the solute bottle outer sleeve 2 and the thin sleeve of the solvent bottle outer sleeve 4, and is between the step faces; for the appearance, the outer peripheral surface of the rotating outer sleeve 51, the outer peripheral surface of the solvent bottle outer sleeve 4, and the outer circumference of the solvent bottle outer sleeve 4 Corresponding to the surface; at the same time, three third longitudinal grooves 511 communicating with the bottom surface of the rotating outer casing 51 are symmetrically opened in the rotating outer casing 51.
  • the first push sleeve 52 and the second push sleeve 53 are sleeved in the solvent bottle outer sleeve 4, and the first push sleeve 52 rests on the needle cap 21, and the second push sleeve 53 rests under the three bottle mouth of the solvent bottle.
  • the second push sleeve 53 is symmetrically convexly disposed with two second positioning click points 531.
  • the second positioning click points 531 are then assembled to the transverse grooves 41 through the second longitudinal grooves 42 and the second positioning.
  • the portion of the card point 531 that protrudes from the solvent bottle outer casing 4 is connected to the third longitudinal groove.
  • a spiral upper slope 532 is protruded from the lower end of the second push sleeve 53.
  • the first positioning pin point 521 is slidably coupled to the first longitudinal groove 43.
  • the upper end of the first push sleeve 52 is convexly formed into a spiral lower slope 522, and is further recessed with a switch groove 521 which is lower than the lower slope 522 and can accommodate the upper slope 532.
  • the upper ramp 532 of the second push sleeve 53 coincides with the lower ramp 522 of the first push sleeve 52 and abuts.
  • the needle 6 is located between the 1 bottle mouth of the solute bottle and the 3 bottle mouth of the solvent bottle, and can slide through the first push sleeve 52 and the second push sleeve 53.
  • the mixing step of the mixing device is: a. Rotating the rotating jacket 51 and driving the second-speed push sleeve 53 to rotate, the second-speed pushing sleeve 53 moving the second positioning card point 531 from the first end of the transverse groove to the second end, where During the process, the upper slope of the second push sleeve 53 generates a downward thrust, the thrust pushes the first push sleeve downwardly along the first longitudinal groove 43, and the first push sleeve is pressed under the needle cap point 22
  • the needle cap is such that the needle cap is fixedly clamped to the needle cap point 22 of the syringe body, and the lower end of the needle 6 is pierced through the solute bottle stopper to conduct the solute bottle; b.
  • the position of the card slot 531 is located at the second end of the transverse slot, and the second positioning card point 531 is located at the top end of the second longitudinal slot and the top of the third longitudinal slot, and the second step of the push sleeve falls into the switch slot, so that the second step is pushed.
  • 53 is movable relative to the solvent bottle outer sleeve 4 along the second longitudinal groove; the elastic body pushes the solvent bottle 3 downward to cause the upper end of the needle to pierce the three bottles of the solvent bottle to conduct the solvent bottle 3, and the elastic body pushes the push plug 31
  • the solvent therein is injected into the solute bottle; c.
  • the syringe body is detached from the solvent bottle casing 4, and the syringe body is provided with a needle, which is also a complete syringe.
  • the invention relates to an automatic mixing device for powder injection, which integrates a syringe body with a solute bottle, a solvent bottle, a propelling mechanism and a needle into a reasonable design, is convenient to carry and use, can be mass-produced industrially, and has good industrial practicality. Sex.

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  • Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Description

一种粉针剂自动混药装置 技术领域
本发明涉及一种注射器， 特别是涉及一种粉针剂的可自动混药装置。
背景技术
目前的粉针注射器由于其使用方便的优点， 越来越受到医护人员和患者的 欢迎。 粉针注射器一般由溶质瓶和针筒或是溶剂瓶组成。 但现有的粉针注射器 溶质瓶与溶剂瓶的连接方式采用粘带连接， 混药过程操作烦琐， 不能自动的完 成混药过程。
为此本申请人在 2005年 09月 14日， 向中国知识产权局申请了发明名称为 《粉针剂自动混药注射器》 的发明， 其公告时间为 2006年 05月 17日。 一种粉 针剂自动混药注射器， 包括溶媒瓶、 溶质瓶和针帽， 还包括溶质瓶外套、溶媒瓶 外套、旋转外套、一档推套和二档推套， 所述的溶质瓶置于溶质瓶外套内， 所述 的溶媒瓶、一档推套和二档推套置于溶媒瓶外套内，所述的旋转外套套在溶媒瓶 外套外面，所述的溶质瓶外套与溶媒瓶外套上下连接。通过旋转外套带动一档推 套和二档推套分别沿着一档推套限位槽和二档推套限位槽运动，使得针帽上的针 头首先刺破溶质瓶胶塞，然后再刺破溶媒瓶胶塞，让溶媒在压力作用下流向溶质 瓶内实现自动混药。上述的旋转外套内壁上设有一档推套限位槽、二档推套限位 槽和旋转外套定位卡，一档推套限位槽和二档推套限位槽的走向采用螺旋形或带 有角度的弧形。其中，要在旋转外套内壁上同时开设一档推套限位槽和二档推套 限位槽， 而且一档推套限位槽和二档推套限位槽的精度要求还高， 则加工复杂， 成本高。
发明内容
为了克服现有自动混药装置的加工复杂， 成本高的不足,本发明提供一种粉 针剂自动混药装置，其不但使用方便快速安全，而且加工方便快速、制造成本低。
本发明解决其技术问题所采用的技术方案是： 一种粉针剂自动混药装置， 包括带有溶质瓶的注射器主体、溶媒瓶、推进机构和针头， 溶质瓶瓶口和溶媒瓶 瓶口正相对，针头位于溶质瓶瓶口和溶媒瓶瓶口之间，推进机构带动针头两端分 别依次导通溶质瓶和溶媒瓶以混药，所述的推进机构包括旋转外套、一档推套及 二档推套； 二档推套可跟随旋转外套旋转，一档推套相对旋转外套移动； 二档推
确认本 套下端凸设有上斜坡，一档推套上端凸设有下斜坡以及凹设有低于下斜坡且可容 纳上斜坡的开关槽；混药装置的混药步骤为： a.转动旋转外套带动二档推套转动 并使上斜坡具有向下的推力，推力推动一档推套向下移动以使针头下端导通于并 定位于溶质瓶； b.转动旋转外套至二档推套上斜坡落入开关槽，溶媒瓶下移使针 头上端导通溶媒瓶； c.拆卸下注射器主体，该注射器主体和定位于其上的针头构 成注射器。
所述的注射器主体上设有针帽， 其位于溶质瓶瓶口之上并靠接于一档推套 底面；针头固设于针帽并可滑动穿过一档推套及二档推套；上斜坡产生的推力使 一档推套压下针帽以使其定位卡接于溶质瓶瓶口，同时带动针头下端向下移动以 导通溶质瓶。
所述的溶媒瓶外可滑动套设有溶媒瓶外套； 溶媒瓶外套上开设有第一纵向 槽；一档推套向外凸设有第一定位卡点； 一档推套位于溶媒瓶外套内且第一定位 卡点可滑动连接于第一纵向槽内。
所述的溶媒瓶外套上还开设有连接通槽， 其包括横向槽及第二纵向槽， 第 二纵向槽顶部连通于横向槽的一端； 二档推套向外凸设有第二定位卡点，第二定 位卡点可滑动穿过连接通槽并连接于旋转外套；设计连接通槽位置以使得二档推 套上斜坡落入开关槽时第二定位卡点刚好位于第二纵向槽内。
所述的旋转外套内开设有第三纵向槽， 第二定位卡点伸出于溶媒瓶外套外 并连接于第三纵向槽内。
所述的第一纵向槽连通于溶媒瓶外套底面， 第二纵向槽连通于溶媒瓶外套 底面，而且第二纵向槽顶端高于第一纵向槽顶端； 二档推套下端的上斜坡吻合并 靠接于一档推套下斜坡之上。
所述的第一纵向槽和第二纵向槽重合。
所述的溶媒瓶为卡式溶媒瓶， 其具有一推塞； 溶媒瓶外套顶部可装拆地设 置有外套盖； 溶媒瓶外套内设有弹性体， 其介于推塞和外套盖之间。
所述的溶媒瓶外套上设有用于观察溶媒瓶的溶媒是否被全部注入溶质瓶的 观察口。
本技术方案的有益效果是- 其一， 本发明的自动混药装置， 不但使用方便快速安全， 而且加工方便快 速、 制造成本低；
其二， 设置有弹性体， 当二档推套上斜坡对准开关槽时， 在弹力作用下自 动带动溶媒瓶向下移动以让针头上端刺穿，同时在弹力作用下自动把溶媒瓶内的 溶媒压注入溶质瓶；传统的使用过程中， 溶媒瓶必须在上， 溶媒在重力作用下自 动注入溶质瓶内，而且整个过程中不能随意上下翻转以免混合后的药水又注入溶 媒瓶；本发明克服了上述的缺点，使用过程中无需限定溶媒瓶和溶质瓶之间的位 置关系， 而且溶媒瓶内的溶媒可被充分完全利用。
附图说明
下面结合附图和实施例对本发明进一步说明。
图 1是本发明自动混药装置的剖面示意图。
图 2是本发明自动混药装置的溶媒瓶、 溶媒瓶外套及其他结构图。
图 3是本发明自动混药装置的注射器主体、针头及其他结构图， 图 2和图 3 配合构成自动混药装置的完整的剖面示意图。
图 4是本发明自动混药装置的一档推套的立体构造示意图。
图 5是本发明自动混药装置的二档推套的立体构造示意图。
图 6是本发明自动混药装置的溶媒瓶外套上开设的连接通槽的原理示意图。 具体实施方式
一种粉针剂自动混药装置， 如图 1、 2、 3所示， 包括带有溶质瓶 1的注射 器主体、 溶媒瓶 3、 溶媒瓶外套 4、 推进机构 5和针头 6， 溶质瓶 1瓶口和溶媒 瓶 2瓶口正相对。注射器主体包括溶质瓶 1、套设溶质瓶 1的溶质瓶外套 2及其 余零部件，而且注射器主体 2和针头 6配合可构成注射器。溶媒瓶 3为卡式溶媒 瓶， 即没有底的瓶子， 另配有可密封并可滑动连接于溶媒瓶 3内的推塞 31。
溶质瓶外套 2为上小下大的阶梯套， 溶质瓶外套 2的细套内设有两个针帽 卡点 22，针帽卡点 22上设有针帽 21，而且针头 6固设于针帽 21。溶质瓶外套 2 的细套上设置成公螺口。
溶媒瓶外套 4为上大下小的阶梯套。 溶媒瓶外套 4的细套下端设置成母螺 口，溶质瓶外套 2的细套的公螺口和溶媒瓶外套 4的细套的母螺口相螺接， 以使 得溶质瓶外套 2和溶媒瓶外套 4之间构成可拆卸结构，也既是注射器主体和溶媒 瓶外套 4之间构成可拆卸结构。如图 6所示，溶质瓶外套 4上对称开设有两连接 通槽， 连接通槽包括横向槽 41及第二纵向槽 42， 第二纵向槽 42顶部连通于横 向槽 41第二端。 同时将该第二纵向槽 42下部定义为第一纵向槽 43， 也就是说 第一纵向槽 43和第二纵向槽 42的下部分重合。
溶媒瓶外套 4套设溶媒瓶 3，另在溶媒瓶外套 4顶端设置有可装拆的外套盖 44。 在外套盖 44和推塞 31之间设置弹性体 45， 弹性体 45外径略小于溶媒瓶外 套 4内径，同时为了控制弹性体 45不弯另在溶媒瓶外套 4和弹性体 45之间套设 弹簧外套 46。
溶媒瓶外套 4上设有用于观察溶媒瓶的溶媒是否被全部注入溶质瓶的观察
P。
推进机构 5包括旋转外套 51、 一档推套 52及二档推套 53。 旋转外套 51可 转动套接溶质瓶外套 2细套以及溶媒瓶外套 4细套，并介于阶梯面之间； 为了美 观使得旋转外套 51外周面、溶媒瓶外套 4外周面、溶媒瓶外套 4外周面相对应； 同时在旋转外套 51内对称开设有两连通旋转外套 51底面的第三纵向槽 511。 一 档推套 52、 二档推套 53均套设于溶媒瓶外套 4内， 一档推套 52靠于针帽 21之 上， 二档推套 53靠在溶媒瓶 3瓶口之下。
如图 4、 5所示， 二档推套 53向外对称凸设有两第二定位卡点 531， 第二定 位卡点 531通过第二纵向槽 42然后装配于横向槽 41， 而且第二定位卡点 531伸 出于溶媒瓶外套 4的部分连接于第三纵向槽内。 二档推套 53下端凸设有螺旋状 的上斜坡 532。一档推套 52对称向外凸设有两第一定位卡点 521，第一定位卡点 521可滑动连接于第一纵向槽 43 内。 一档推套 52上端凸设成螺旋状的下斜坡 522， 并还凹设有低于下斜坡 522且可容纳上斜坡 532的开关槽 521。 二档推套 53的上斜坡 532和一档推套 52的下斜坡 522相吻合并靠接。
针头 6位于溶质瓶 1瓶口和溶媒瓶 3瓶口之间， 并可滑动穿过一档推套 52 及二档推套 53。
混药装置的混药步骤为： a.转动旋转外套 51并带动二档推套 53转动， 二档 推套 53第二定位卡点 531从横向槽的第一端移动到第二端， 在此过程中， 二档 推套 53的上斜坡产生有向下的推力，推力推动一档推套顺着第一纵向槽 43向下 移动， 一档推套压下设于针帽卡点 22之上的针帽， 使得针帽固定卡设于注射器 主体的针帽卡点 22， 并使得针头 6下端刺穿溶质瓶瓶塞以导通溶质瓶； b.第二定 位卡点 531位于横向槽的第二端，也既是第二定位卡点 531位于第二纵向槽顶端、 第三纵向槽顶端， 同时二档推套上斜坡落入开关槽， 使得二档推套 53 可相对溶 媒瓶外套 4顺着第二纵向槽向下移动；弹性体推动溶媒瓶 3向下移动使得针头上 端刺穿溶媒瓶 3瓶塞以导通溶媒瓶 3， 弹性体推动推塞 31使其内的溶媒被压注 入溶质瓶； c. 如图 2、 3所示， 从溶媒瓶外套 4上拆卸下注射器主体， 该注射器 主体上带有针头， 也既是完整注射器。
本发明的其它具体结构可参照本申请人在 2005年 09月 14日申请的发明名 称为 《粉针剂自动混药装置》 的发明。
以上所述， 仅为本发明较佳实施例而巳， 故不能以此限定本发明实施的范 围， 即依本发明申请专利范围及说明书内容所作的等效变化与修饰， 皆应仍属本 发明专利涵盖的范围内。
工业实用性
本发明一种粉针剂自动混药装置， 是将带有溶质瓶的注射器主体、 溶媒瓶、 推进机构和针头合理的设计为一体， 携带、使用方便， 可大批量工业化生产， 具 有良好的工业实用性。

Claims

1. 一种粉针剂自动混药装置， 包括带有溶质瓶的注射器主体、 溶媒瓶、 推进机构和针头， 溶质瓶瓶口和溶媒瓶瓶口正相对， 针头位于溶质瓶瓶口和溶 媒瓶瓶口之间， 推进机构带动针头两端分别依次导通溶质瓶和溶媒瓶以混药- 所述的推进机构包括旋转外套、一档推套及二档推套； 二档推套可跟随旋转外 套旋转，一档推套相对旋转外套移动； 二档推套下端凸设有上斜坡，一档推套 上端凸设有下斜坡以及凹设有低于下斜坡且可容纳上斜坡的开关槽；混药装置 的混药步骤为： a.转动旋转外套带动二档推套转动并使上斜坡具有向下的推 力， 推力推动一档推套向下移动以使针头下端导通于并定位于溶质瓶； b.转动 旋转外套至二档推套上斜坡落入开关槽， 溶媒瓶下移使针头上端导通溶媒瓶； c拆卸下注射器主体， 该注射器主体和定位于其上的针头构成注射器。
2. 根据权利要求 1所述的一种粉针剂自动混药装置， 其特征是： 所述的 注射器主体上设有针帽， 其位于溶质瓶瓶口之上并靠接于一档推套底面； 针头 固设于针帽并可滑动穿过一档推套及二档推套；上斜坡产生的推力使一档推套 压下针帽以使其定位卡接于溶质瓶瓶口，同时带动针头下端向下移动以导通溶 质瓶。
3. 根据权利要求 2所述的一种粉针剂自动混药装置， 其特征是： 所述的 溶媒瓶外可滑动套设有溶媒瓶外套； 溶媒瓶外套上开设有第一纵向槽； 一档推 套向外凸设有第一定位卡点；一档推套位于溶媒瓶外套内且第一定位卡点可滑 动连接于第一纵向槽内。
4. 根据权利要求 3所述的一种粉针剂自动混药装置， 其特征是： 所述的 溶媒瓶外套上还开设有连接通槽， 其包括横向槽及第二纵向槽， 第二纵向槽顶 部连通于横向槽的一端； 二档推套向外凸设有第二定位卡点， 第二定位卡点可 滑动穿过连接通槽并连接于旋转外套；设计连接通槽位置以使得二档推套上斜 坡落入开关槽时第二定位卡点刚好位于第二纵向槽内。
5. 根据权利要求 4所述的一种粉针剂自动混药装置， 其特征是： 所述的 旋转外套内开设有第三纵向槽，第二定位卡点伸出于溶媒瓶外套外并连接于第 三纵向槽内。
6. 根据权利要求 5所述的一种粉针剂自动混药装置， 其特征是： 所述的 第一纵向槽连通于溶媒瓶外套底面， 第二纵向槽连通于溶媒瓶外套底面， 而且 第二纵向槽顶端高于第一纵向槽顶端；二档推套下端的上斜坡吻合并靠接于一 档推套下斜坡之上。
7. 根据权利要求 6所述的一种粉针剂自动混药装置， 其特征是： 所述的 第一纵向槽和第二纵向槽重合。
8. 根据权利要求 7所述的一种粉针剂自动混药装置， 其特征是： 所述的 溶媒瓶为卡式溶媒瓶，其具有一推塞；溶媒瓶外套顶部可装拆地设置有外套盖； 溶媒瓶外套内设有弹性体， 其介于推塞和外套盖之间。
9. 根据权利要求 8所述的一种粉针剂自动混药装置， 其特征是： 所述的溶 媒瓶外套上设有用于观察溶媒瓶的溶媒是否被全部注入溶质瓶的观察口。
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