WO2020248455A1 - 电磁式配药器 - Google Patents

电磁式配药器 Download PDF

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Publication number
WO2020248455A1
WO2020248455A1 PCT/CN2019/111604 CN2019111604W WO2020248455A1 WO 2020248455 A1 WO2020248455 A1 WO 2020248455A1 CN 2019111604 W CN2019111604 W CN 2019111604W WO 2020248455 A1 WO2020248455 A1 WO 2020248455A1
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WIPO (PCT)
Prior art keywords
needle tube
housing
traction rod
electromagnetic
magnet
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PCT/CN2019/111604
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English (en)
French (fr)
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陈大为
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陈大为
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Publication of WO2020248455A1 publication Critical patent/WO2020248455A1/zh

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    • 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

Definitions

  • the invention relates to the field of medical equipment, in particular to an electromagnetic dispenser.
  • the purpose of the present invention is to solve the problems existing in the prior art and provide an electromagnetic dispenser that can replace manual dispensing, with simple structure, low manufacturing cost, easy maintenance, low noise, and can improve dispensing efficiency and reduce the labor of medical staff strength.
  • the electromagnetic dispenser includes a housing, one end of the housing is provided with a needle tube fixing mechanism, an electromagnetic push-pull mechanism is provided in the housing, and the electromagnetic push-pull mechanism is provided with a traction rod for driving the piston of the needle tube to move.
  • One end of the housing close to the needle tube fixing mechanism is provided with a through hole adapted to the traction rod, and one end of the traction rod extends out of the housing through the through hole.
  • the electromagnetic push-pull mechanism includes an electromagnet, the electromagnet is fixedly connected to the housing, a magnet is provided on the side of the electromagnet close to the needle tube fixing mechanism, the magnet is slidably connected to the housing, and one end of the traction rod is connected to Magnet connection.
  • the end of the traction rod away from the electromagnetic push-pull mechanism is provided with a connecting head adapted to the piston of the needle tube.
  • the end of the traction rod away from the electromagnetic push-pull mechanism is provided with a connecting frame adapted to the piston rod of the needle tube, and the end of the connecting frame away from the traction rod is provided with an opening.
  • One end of the traction rod is provided with a cylindrical magnet box adapted to the magnet, and the outer wall of the cylindrical magnet box is inlaid with balls.
  • the cylindrical magnet box is provided with a shock-absorbing pad on one side close to the traction rod.
  • the through hole of the shell is provided with a guide sleeve adapted to the traction rod.
  • the electromagnetic push-pull mechanism of the present invention is used to drive the traction rod to move, and the traction rod is used to drive the piston of the needle tube to move, can complete the push and pull action of the needle tube piston, can replace manual dispensing, has simple structure, low manufacturing cost, easy maintenance, and low noise. It can improve the dispensing efficiency and reduce the labor intensity of medical staff.
  • Figure 1 is a schematic diagram of the structure of the present invention
  • Figure 2 is a schematic diagram of the structure of the tow bar in embodiment 1;
  • Fig. 3 is a schematic diagram of the structure of the tow bar in embodiment 2.
  • the electromagnetic dispenser according to the present invention includes a housing 1, one end of the housing 1 is provided with a needle tube fixing mechanism 2, the needle tube fixing mechanism 2 is used to fix the needle tube, and the housing 1 is provided with an electromagnetic push-pull mechanism,
  • the electromagnetic push-pull mechanism is provided with a traction rod 3 for driving the piston of the needle tube to move, and one end of the housing 1 close to the needle tube fixing mechanism 2 is provided with a through hole corresponding to the traction rod 3.
  • One end of the traction rod 3 The housing 1 extends through the through hole.
  • the electromagnetic push-pull mechanism is used to drive the traction rod 3 to move, and the traction rod 3 is used to drive the piston of the needle tube to move, which can complete the push and pull action of the needle tube piston, and can replace manual dispensing.
  • the structure is simple and the manufacturing cost is Low, easy to maintain, low noise, can improve the efficiency of dispensing, reduce the labor intensity of medical staff.
  • the electromagnetic push-pull mechanism includes an electromagnet 4, which is fixedly connected to the housing 1, and a side of the electromagnet 4 close to the needle tube fixing mechanism 2 is provided with a magnet 5, and the magnet 5 and The housing 1 is slidably connected, one end of the tow bar 3 is connected to the magnet 5, the polarity of the two ends of the magnet 5 remains unchanged, the polarity of the electromagnet 4 is changed by changing the direction of the current of the electromagnet 4, when the electromagnet 4 When the polarity of the end close to the magnet 5 is the same as the polarity of the end close to the electromagnet 4 of the magnet 5, the magnet 5 moves in the direction away from the electromagnet 4, and the tow bar 3 is extended, otherwise, the tow bar 3 is retracted, and the structure is simple , Easy to control.
  • the end of the traction rod 3 away from the electromagnetic push-pull mechanism is provided with a connector 6 adapted to the piston of the needle tube.
  • a needle tube without a piston rod can be used, and the connector 6 is directly connected to the piston of the needle tube.
  • the end of the traction rod 3 away from the electromagnetic push-pull mechanism is provided with a connecting frame 7 adapted to the piston rod of the needle tube, and the end of the connecting frame 7 away from the traction rod 3 is provided with an opening 8.
  • the width of 8 is adapted to the diameter of the piston rod.
  • one end of the traction rod 3 is provided with a cylindrical magnet box 9 adapted to the magnet 5.
  • the outer wall of the cylindrical magnet box 9 is inlaid with balls 10, and the cylindrical magnet box 9 passes through The ball 10 is in contact with the inner wall of the housing 1, which can reduce friction and reduce energy consumption.
  • the cylindrical magnet box 10 is provided with a shock absorbing pad 11 on the side close to the draw bar 3.
  • the through hole of the housing 1 is provided with a guide sleeve 12 adapted to the traction rod 3, and the 12-position guide sleeve provides guidance for the movement of the traction rod 3.
  • the electromagnetic dispenser according to the present invention includes a housing 1 in which a cylindrical cavity is provided.
  • the housing 1 is formed by buckling two housings.
  • One end of the housing 1 is provided There is a needle tube fixing mechanism 2.
  • the needle tube fixing mechanism 2 can directly adopt the needle tube fixing structure on the existing dispenser.
  • the needle tube fixing mechanism 2 is used to fix the needle tube.
  • the housing 1 is provided with an electromagnetic push-pull mechanism, the electromagnetic push-pull mechanism is provided with a traction rod 3 for driving the piston of the needle tube to move, and an end of the housing 1 close to the needle tube fixing mechanism 2 is provided with the traction rod 3 Adaptable through hole, one end of the tow bar 3 extends out of the housing 1 through the through hole.
  • the electromagnetic push-pull mechanism includes an electromagnet 4 and an electromagnet polarity controller.
  • the control switch of the electromagnet polarity controller is located in the housing On the outer wall of 1, the electromagnet polarity controller can be used to control the polarity of the electromagnet 4.
  • the electromagnet 4 is located at the end of the housing 1 away from the needle tube fixing structure 2, and the electromagnet 4 is embedded in the housing 1.
  • the electromagnet 4 is provided with a magnet 5 on the side close to the needle tube fixing mechanism 2, one end of the traction rod 3 is provided with a cylindrical magnet box 9 corresponding to the magnet 5, and the traction rod 3 and the cylindrical magnet box 9 are used between One-piece structure, the magnet 5 is embedded in the cylindrical magnet box 9.
  • the outer diameter of the cylindrical magnet box 9 is slightly smaller than the inner diameter of the cylindrical cavity in the housing 1.
  • the cylindrical magnet box 9 can be placed in the cylinder of the housing 1.
  • the cylindrical magnet box 9 is inlaid with balls 10 on its outer wall, and the cylindrical magnet box 9 contacts the inner wall of the housing 1 through the balls 10, which can reduce friction and reduce energy consumption.
  • the end of the traction rod 3 away from the electromagnetic push-pull mechanism is provided with a connector 6 adapted to the piston of the needle tube.
  • the structure of the connector 6 can directly adopt the existing connector structure of the piston rod and the piston in the needle tube.
  • the needle tube of the piston rod is directly connected to the piston of the needle tube by using the connector 6, and when in use, the needle tube without the piston rod can be directly customized, which can reduce resource consumption.
  • the needle tube fixing mechanism 2 In use, first install the needle tube in the needle tube fixing mechanism 2. Since the polarity of both ends of the magnet 5 remains unchanged, the polarity of the electromagnet 4 is changed by changing the direction of the current of the electromagnet 4. When the electromagnet 4 is close to the magnet When the polarity of one end of the magnet 5 is the same as the polarity of the end of the magnet 5 close to the electromagnet 4, the magnet 5 moves in a direction away from the electromagnet 4, the traction rod 3 extends, and the connector 6 is inserted into the piston of the needle tube by thrust.
  • the structure is simple, the control is convenient, can complete the push and pull action of the plunger of the needle tube, can replace manual dispensing, has simple structure, low manufacturing cost, easy maintenance, low noise, can improve dispensing efficiency, and reduce the labor intensity of medical staff.
  • Embodiment 2 The electromagnetic dispenser according to the present invention includes a housing 1 in which a cylindrical cavity is provided.
  • the housing 1 is formed by buckling two housings together. One end of the housing 1 is provided with a cylindrical cavity.
  • the needle tube fixing mechanism 2 can directly adopt the needle tube fixing structure on the existing dispenser.
  • the needle tube fixing mechanism 2 is used to fix the needle tube.
  • the housing 1 is provided with an electromagnetic push-pull mechanism, the electromagnetic push-pull mechanism is provided with a traction rod 3 for driving the piston of the needle tube to move, and an end of the housing 1 close to the needle tube fixing mechanism 2 is provided with the traction rod 3 An adaptable through hole. One end of the traction rod 3 extends out of the housing 1 through the through hole.
  • the through hole of the housing 1 is provided with a guide sleeve 12 that is compatible with the traction rod 3.
  • the guide sleeve has 12 traction rods 3 Provide guidance for the movement.
  • the electromagnetic push-pull mechanism includes an electromagnet 4 and an electromagnet polarity controller.
  • the control switch of the electromagnet polarity controller is located on the outer wall of the housing 1.
  • the electromagnet polarity controller can control the polarity of the electromagnet 4,
  • the electromagnet 4 is located at the end of the housing 1 away from the needle tube fixing structure 2, the electromagnet 4 is embedded in the housing 1, and the side of the electromagnet 4 close to the needle tube fixing mechanism 2 is provided with a magnet 5, and the traction rod 3
  • One end is provided with a cylindrical magnet box 9 that is compatible with the magnet 5.
  • the traction rod 3 and the cylindrical magnet box 9 adopt an integrated structure.
  • the magnet 5 is embedded in the cylindrical magnet box 9.
  • the outer diameter is slightly smaller than the inner diameter of the cylindrical cavity in the housing 1, the cylindrical magnet box 9 can slide in the cylindrical cavity in the housing 1, and the outer wall of the cylindrical magnet box 9 is inlaid with balls 10, The cylindrical magnet box 9 is in contact with the inner wall of the housing 1 through the balls 10, which can reduce friction and energy consumption. Further, in order to reduce the impact of the magnet on the housing, the cylindrical magnet box 10 is pasted with an annular shock-absorbing pad 11 on the side close to the traction rod 3.
  • the end of the traction rod 3 away from the electromagnetic push-pull mechanism is provided with a connecting frame 7 adapted to the piston rod of the needle tube.
  • the connecting frame 7 and the traction rod 3 adopt an integrated structure, and the end of the connecting frame 7 away from the traction rod 3 An opening 8 is provided.
  • the connecting frame 7 is a rectangular frame with an opening 8.
  • the width of the opening 8 is adapted to the diameter of the piston rod.
  • the part extending outward from the end of the piston rod is inserted into the connecting frame 7, and the piston rod and the traction rod 3 connection, can directly use the existing needle tube.
  • the connecting frame 7 is provided with a sliding block on the side close to the needle tube fixing mechanism 2, and the needle tube fixing mechanism 2 is provided with a sliding groove adapted to the sliding block. The cooperation of the sliding block and the sliding groove ensures that the traction rod can only move while It cannot be rotated to ensure a quick connection between the piston rod of the needle tube and the traction rod 3, and the existing needle tube can be directly used, which can reduce resource consumption.
  • the polarity of the electromagnet 4 is changed by changing the direction of the current of the electromagnet 4.
  • the electromagnet 4 is close to the magnet 5
  • the polarity of one end of the magnet 5 is the same as the polarity of the end of the magnet 5 close to the electromagnet 4
  • the magnet 5 moves away from the electromagnet 4
  • the traction rod 3 is extended, and the connector 6 is inserted into the piston of the needle tube by thrust.
  • the electromagnet polarity controller changes the direction of the current.
  • the draw rod 3 is retracted, the piston is pulled to draw the liquid into the needle tube, and then the direction of the current is changed to discharge the liquid in the needle tube into the medicine bottle.
  • Structure It is simple and convenient to control, can complete the push and pull action of the piston of the needle tube, can replace manual dispensing, has simple structure, low manufacturing cost, easy maintenance, low noise, can improve dispensing efficiency, and reduce the labor intensity of medical staff.

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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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

一种电磁式配药器，包括壳体（1），所述壳体（1）的一端设有针管固定机构（2），壳体（1）内设有电磁推拉机构，所述电磁推拉机构上设有用于带动针管的活塞移动的牵引杆（3），壳体（1）靠近针管固定机构（2）的一端设有与牵引杆（3）相适应的通孔，牵引杆（3）的一端经通孔伸出壳体（1）。

Description

电磁式配药器 技术领域
本发明涉及医疗器械领域，具体是电磁式配药器。
背景技术
目前，医院内的配药工作大都由医护人员手动完成，配药时，医护人员频繁的抽拉针管的活塞杆，花费时间长、劳动强度大，为解决该问题，在市场上出现了一系列的配药器，其中有一种配药器是借助于气压直接对针管的活塞进行推拉动作，通过在针管内产生负压，将活塞外拉，通过对针管加压，将活塞推进，虽然解决了传统的手动配药效率低、劳动强度大的问题，但气压式配药器需要配备气压源，成本较高，在针管的进气与排气过程中均会产生一定的噪音，为保证针管与气压式配药器之间连接的密封性，密封结构必不可少，且为易损件，制造和维护成本较高。
发明内容
本发明的目的在于解决现有技术中存在的问题，提供一种能够替代人工配药的电磁式配药器，结构简单，制造成本低，易于维护，噪音低，能够提高配药效率，降低医护人员的劳动强度。
本发明为实现上述目的，通过以下技术方案实现：
电磁式配药器，包括壳体，所述壳体的一端设有针管固定机构，所述壳体内设有电磁推拉机构，所述电磁推拉机构上设有用于带动针管的活塞移动的牵引杆，所述壳体靠近针管固定机构的一端设有与牵引杆相适应的通孔，所述牵引杆的一端经通孔伸出壳体。
所述电磁推拉机构包括电磁铁，所述电磁铁与壳体固定连接，所述电磁铁 靠近针管固定机构的一侧设有磁铁，所述磁铁与壳体滑动连接，所述牵引杆的一端与磁铁连接。
所述牵引杆远离电磁推拉机构的一端设有与针管的活塞相适应的连接头。
所述牵引杆远离电磁推拉机构的一端设有与针管的活塞杆相适应的连接架，所述连接架远离牵引杆的一端设有开口。
所述牵引杆的一端设有与磁铁相适应的圆柱状磁铁盒，所述圆柱状磁铁盒的外壁上镶嵌有滚珠。
所述圆柱状磁铁盒靠近牵引杆的一侧设有减震垫。
所述壳体的通孔处设有与牵引杆相适应的导向套。
对比现有技术，本发明的有益效果在于:
本发明的电磁推拉机构用于带动牵引杆移动，牵引杆用于带动针管的活塞移动，能够完成针管的活塞的推拉动作，能够替代人工配药，结构简单，制造成本低，易于维护，噪音低，能够提高配药效率，降低医护人员的劳动强度。
附图说明
附图1是本发明的结构示意图；
附图2是实施例1中牵引杆的结构示意图；
附图3是实施例2中牵引杆的结构示意图。
附图中标号：1、壳体；2、针管固定机构；3、牵引杆；4、电磁铁；5、磁铁；6、连接头；7、连接架；8、开口；9、圆柱状磁铁盒；10、滚珠；11、减震垫；12、导向套。
具体实施方式
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内 容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所限定的范围。
本发明所述是电磁式配药器，包括壳体1，所述壳体1的一端设有针管固定机构2，针管固定机构2用于固定针管，所述壳体1内设有电磁推拉机构，所述电磁推拉机构上设有用于带动针管的活塞移动的牵引杆3，所述壳体1靠近针管固定机构2的一端设有与牵引杆3相适应的通孔，所述牵引杆3的一端经通孔伸出壳体1，电磁推拉机构用于带动牵引杆3移动，牵引杆3用于带动针管的活塞移动，能够完成针管的活塞的推拉动作，能够替代人工配药，结构简单，制造成本低，易于维护，噪音低，能够提高配药效率，降低医护人员的劳动强度。
为了降低制造成本，所述电磁推拉机构包括电磁铁4，所述电磁铁4与壳体1固定连接，所述电磁铁4靠近针管固定机构2的一侧设有磁铁5，所述磁铁5与壳体1滑动连接，所述牵引杆3的一端与磁铁5连接，磁铁5两端的极性保持不变，通过改变电磁铁4的电流的方向来改变电磁铁4的极性，当电磁铁4靠近磁铁5的一端的极性与磁铁5靠近电磁铁4的一端的极性相同时，磁铁5向着远离电磁铁4的方向移动，牵引杆3伸出，反之，牵引杆3缩回，结构简单，控制方便。
为了节约使用成本，所述牵引杆3远离电磁推拉机构的一端设有与针管的活塞相适应的连接头6，可使用无活塞杆的针管，采用连接头6直接与针管的活塞连接。
为了适用于现有的针管，所述牵引杆3远离电磁推拉机构的一端设有与针管的活塞杆相适应的连接架7，所述连接架7远离牵引杆3的一端设有开口8，开口8的宽度与活塞杆的直径相适应，活塞杆端部向外延伸的部分插入连接架7中，将活塞杆与牵引杆3连接，能够直接使用现有的针管。
为了降低磁铁移动时的阻力，所述牵引杆3的一端设有与磁铁5相适应的圆柱状磁铁盒9，所述圆柱状磁铁盒9的外壁上镶嵌有滚珠10，圆柱状磁铁盒9通过滚珠10与壳体1的内壁接触，能够减少摩擦，降低能耗。
为了降低磁铁对壳体的冲击，所述圆柱状磁铁盒10靠近牵引杆3的一侧设有减震垫11。
为了防止牵引杆倾斜，所述壳体1的通孔处设有与牵引杆3相适应的导向套12，导向套12位牵引杆3的移动提供导向。
实施例
实施例1：本发明所述是电磁式配药器，包括壳体1，壳体1内设有圆柱状空腔，壳体1由两个外壳扣合而成，所述壳体1的一端设有针管固定机构2，针管固定机构2可直接采用现有的配药器上的针管固定结构，针管固定机构2用于固定针管。所述壳体1内设有电磁推拉机构，所述电磁推拉机构上设有用于带动针管的活塞移动的牵引杆3，所述壳体1靠近针管固定机构2的一端设有与牵引杆3相适应的通孔，所述牵引杆3的一端经通孔伸出壳体1，所述电磁推拉机构包括电磁铁4、电磁铁极性控制器，电磁铁极性控制器的控制开关位于壳体1的外壁上，利用电磁铁极性控制器能够控制电磁铁4的极性，所述电磁铁4位于壳体1内远离针管固定结构2的一端，电磁铁4镶嵌在壳体1中，所述电磁铁4靠近针管固定机构2的一侧设有磁铁5，牵引杆3的一端设有与磁铁5相适应的圆柱状磁铁盒9，所述牵引杆3与圆柱状磁铁盒9之间采用一体式结构，磁铁5镶嵌在圆柱状磁铁盒9中，圆柱状磁铁盒9的外径略小于壳体1内的圆柱状空腔的内径，圆柱状磁铁盒9能够在壳体1内的圆柱状空腔中滑动，所述圆柱状磁铁盒9的外壁上镶嵌有滚珠10，圆柱状磁铁盒9通过滚珠10与壳体1的内壁接触，能够减少摩擦，降低能耗。所述牵引杆3远离电磁推拉机构的一端 设有与针管的活塞相适应的连接头6，连接头6的结构可直接采用现有的针管中活塞杆与活塞连接的连接头结构，可使用无活塞杆的针管，采用连接头6直接与针管的活塞连接，在使用时，可直接定制无活塞杆的针管，能够减少资源损耗。在使用时，首先将针管安装在针管固定机构2中，由于磁铁5两端的极性保持不变，通过改变电磁铁4的电流的方向来改变电磁铁4的极性，当电磁铁4靠近磁铁5的一端的极性与磁铁5靠近电磁铁4的一端的极性相同时，磁铁5向着远离电磁铁4的方向移动，牵引杆3伸出，利用推力将连接头6插入针管的活塞中，利用电磁铁极性控制器改变电流的方向，牵引杆3缩回的同时拉动活塞，将药液抽入针管中，再改变电流的方向，即可将针管内的药液排入药剂瓶中，结构简单，控制方便，能够完成针管的活塞的推拉动作，能够替代人工配药，结构简单，制造成本低，易于维护，噪音低，能够提高配药效率，降低医护人员的劳动强度。
实施例2：本发明所述是电磁式配药器，包括壳体1，壳体1内设有圆柱状空腔，壳体1由两个外壳扣合而成，所述壳体1的一端设有针管固定机构2，针管固定机构2可直接采用现有的配药器上的针管固定结构，针管固定机构2用于固定针管。所述壳体1内设有电磁推拉机构，所述电磁推拉机构上设有用于带动针管的活塞移动的牵引杆3，所述壳体1靠近针管固定机构2的一端设有与牵引杆3相适应的通孔，所述牵引杆3的一端经通孔伸出壳体1，所述壳体1的通孔处设有与牵引杆3相适应的导向套12，导向套12位牵引杆3的移动提供导向。所述电磁推拉机构包括电磁铁4、电磁铁极性控制器，电磁铁极性控制器的控制开关位于壳体1的外壁上，利用电磁铁极性控制器能够控制电磁铁4的极性，所述电磁铁4位于壳体1内远离针管固定结构2的一端，电磁铁4镶嵌在壳体1中，所述电磁铁4靠近针管固定机构2的一侧设有磁铁5，牵引杆3的一 端设有与磁铁5相适应的圆柱状磁铁盒9，所述牵引杆3与圆柱状磁铁盒9之间采用一体式结构，磁铁5镶嵌在圆柱状磁铁盒9中，圆柱状磁铁盒9的外径略小于壳体1内的圆柱状空腔的内径，圆柱状磁铁盒9能够在壳体1内的圆柱状空腔中滑动，所述圆柱状磁铁盒9的外壁上镶嵌有滚珠10，圆柱状磁铁盒9通过滚珠10与壳体1的内壁接触，能够减少摩擦，降低能耗。进一步的，为了降低磁铁对壳体的冲击，所述圆柱状磁铁盒10靠近牵引杆3的一侧粘贴设有环形减震垫11。所述牵引杆3远离电磁推拉机构的一端设有与针管的活塞杆相适应的连接架7，连接架7与牵引杆3之间采用一体式结构，所述连接架7远离牵引杆3的一端设有开口8，连接架7为带有开口8的矩形框架，开口8的宽度与活塞杆的直径相适应，活塞杆端部向外延伸的部分插入连接架7中，将活塞杆与牵引杆3连接，能够直接使用现有的针管。所述连接架7靠近针管固定机构2的一侧设有滑块，针管固定机构2上设有与滑块相适应的滑槽，通过滑块与滑槽的配合，保证牵引杆只能移动而不能转动，保证针管的活塞杆与牵引杆3之间快速的连接，可直接利用现有的针管，能够减少资源损耗。使用时，首先将针管安装在针管固定机构2中，由于磁铁5两端的极性保持不变，通过改变电磁铁4的电流的方向来改变电磁铁4的极性，当电磁铁4靠近磁铁5的一端的极性与磁铁5靠近电磁铁4的一端的极性相同时，磁铁5向着远离电磁铁4的方向移动，牵引杆3伸出，利用推力将连接头6插入针管的活塞中，利用电磁铁极性控制器改变电流的方向，牵引杆3缩回的同时拉动活塞，将药液抽入针管中，再改变电流的方向，即可将针管内的药液排入药剂瓶中，结构简单，控制方便，能够完成针管的活塞的推拉动作，能够替代人工配药，结构简单，制造成本低，易于维护，噪音低，能够提高配药效率，降低医护人员的劳动强度。

Claims (7)

  1. 电磁式配药器，包括壳体(1)，所述壳体(1)的一端设有针管固定机构(2)，其特征在于：所述壳体(1)内设有电磁推拉机构，所述电磁推拉机构上设有用于带动针管的活塞移动的牵引杆(3)，所述壳体(1)靠近针管固定机构(2)的一端设有与牵引杆(3)相适应的通孔，所述牵引杆(3)的一端经通孔伸出壳体(1)。
  2. 根据权利要求1所述的电磁式配药器，其特征在于：所述电磁推拉机构包括电磁铁(4)，所述电磁铁(4)与壳体(1)固定连接，所述电磁铁(4)靠近针管固定机构(2)的一侧设有磁铁(5)，所述磁铁(5)与壳体(1)滑动连接，所述牵引杆(3)的一端与磁铁(5)连接。
  3. 根据权利要求1或2所述的电磁式配药器，其特征在于：所述牵引杆(3)远离电磁推拉机构的一端设有与针管的活塞相适应的连接头(6)。
  4. 根据权利要求1或2所述的电磁式配药器，其特征在于：所述牵引杆(3)远离电磁推拉机构的一端设有与针管的活塞杆相适应的连接架(7)，所述连接架(7)远离牵引杆(3)的一端设有开口(8)。
  5. 根据权利要求2所述的电磁式配药器，其特征在于：所述牵引杆(3)的一端设有与磁铁(5)相适应的圆柱状磁铁盒(9)，所述圆柱状磁铁盒(9)的外壁上镶嵌有滚珠(10)。
  6. 根据权利要求5所述的电磁式配药器，其特征在于：所述圆柱状磁铁盒(9)靠近牵引杆(3)的一侧设有减震垫(11)。
  7. 根据权利要求1所述的电磁式配药器，其特征在于：所述壳体(1)的通孔处设有与牵引杆(3)相适应的导向套(12)。
PCT/CN2019/111604 2019-06-12 2019-10-17 电磁式配药器 WO2020248455A1 (zh)

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