WO2024016140A1 - Appareil d'injection automatique - Google Patents

Appareil d'injection automatique Download PDF

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Publication number
WO2024016140A1
WO2024016140A1 PCT/CN2022/106381 CN2022106381W WO2024016140A1 WO 2024016140 A1 WO2024016140 A1 WO 2024016140A1 CN 2022106381 W CN2022106381 W CN 2022106381W WO 2024016140 A1 WO2024016140 A1 WO 2024016140A1
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WO
WIPO (PCT)
Prior art keywords
component
injection device
driving unit
automatic injection
elastic member
Prior art date
Application number
PCT/CN2022/106381
Other languages
English (en)
Chinese (zh)
Inventor
翁建森
Original Assignee
嘉兴森迈医疗科技有限公司
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 嘉兴森迈医疗科技有限公司 filed Critical 嘉兴森迈医疗科技有限公司
Priority to PCT/CN2022/106381 priority Critical patent/WO2024016140A1/fr
Publication of WO2024016140A1 publication Critical patent/WO2024016140A1/fr

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Classifications

    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically

Definitions

  • the present invention relates to the technical field of injection devices, in particular to an automatic injection device capable of performing rapid injection operations.
  • the present invention was made in view of the above-mentioned problems, and its purpose is to provide an automatic injection device that can perform a rapid injection operation, increase the injection speed, simplify the structural design, and improve the convenience of use.
  • the automatic injection device of the present invention includes a sleeve, a driving unit and an actuating assembly.
  • the sleeve includes a channel and a stopper, and the stopper is disposed in the channel; the driving unit is disposed in the channel; the actuating component is movably disposed in the channel along the axis, and the actuating component includes an elastic member and a first component and a second component: the elastic component includes a first end and a second end; the first component is connected to the first end of the elastic component, and the first component is detachably combined with the driving unit; and the second component is connected to the second end of the elastic component.
  • the driving unit can drive the first component to move a set distance along the axis in the first direction, and the second component is blocked by the stopper so that the elastic member remains in a stretched state; when the first component is separated from the driving unit, The elastic potential energy of the elastic member in the stretched state causes the elastic member to drive the second component to move along the axis in the opposite direction to the first direction, so as to perform a rapid injection operation through the second component.
  • the actuating assembly further includes a guide rod, one end of the guide rod is connected to the second component and the other end extends along the axis and penetrates the elastic member and the first component.
  • the length of the guide rod is not less than the length of the elastic member in a stretched state.
  • the first component includes a perforation and the guide rod passes through the perforation.
  • the elastic member is a tension spring.
  • the driving unit includes a coupling portion
  • the first component includes a corresponding coupling portion that can correspond to the coupling portion
  • the coupling part is a hook structure or a plug structure
  • the corresponding coupling part is a buckle structure or a jack structure.
  • the drive unit is an electromagnet and the first component is a permanent magnet.
  • the sleeve further includes an operating part, through which the first component is controlled to separate from the driving unit.
  • the injection device further includes a power supply unit, which is combined with the sleeve and electrically connected to the driving unit.
  • the sleeve further includes at least one limiting member
  • the second component of the actuating assembly further includes at least one corresponding limiting member; when the second component moves relative to the sleeve, by at least A corresponding limiting member cooperates with at least one limiting member to enable the second component to move along the axis.
  • the automatic injection device of the present invention first drives the elastic member to move through the driving unit, so that the elastic member presents and maintains a stretched state. Once the elastic member is released, it can generate a large elastic potential energy to perform a rapid injection operation.
  • the automatic injection device of the present invention can be applied to special injection or drug administration needs, is easy to operate, and can effectively simplify the structural design of the device.
  • Figure 1 is a cross-sectional view of the first embodiment of the automatic injection device of the present invention.
  • Figure 2 is a schematic diagram of the first embodiment of the automatic injection device of the present invention during the injection operation.
  • Figure 3 is a schematic diagram of the first embodiment of the automatic injection device of the present invention after executing the injection operation.
  • Figure 4 is a cross-sectional view of the second embodiment of the automatic injection device of the present invention.
  • Figure 5 is a schematic diagram of the second embodiment of the automatic injection device of the present invention during the injection operation.
  • Fig. 6 is a schematic diagram of the second embodiment of the automatic injection device of the present invention after executing the injection operation.
  • first or second and similar ordinal numbers are mainly used to distinguish or refer to the same or similar components or structures, and do not necessarily imply the spatial or temporal spatial or temporal distribution of these components or structures. order. It should be understood that in certain situations or configurations, ordinal terms may be used interchangeably without affecting the practice of the present invention.
  • the words "includes,” “has,” or any other similar term are intended to cover a non-exclusive inclusion.
  • a component or structure containing multiple elements is not limited to the elements listed herein, but may include other elements not expressly listed but that are generally inherent to the component or structure.
  • the automatic injection device of the present invention can be applied to special injection or drug administration needs.
  • the above-mentioned special injection requirements may require instant implantation of objects under the superficial epidermis of the human body, in larger areas or in multiple parts of the skin, and the above-mentioned objects may be pharmaceuticals, slimming patches, cosmetic short needles or other implants to be implanted.
  • FIG. 1 is a cross-sectional view of the first embodiment of the automatic injection device of the present invention.
  • the automatic injection device 1 of the present invention includes a sleeve 10 , a driving unit 20 and an actuating assembly 30 .
  • the sleeve 10 includes a channel 11 and a stopper 12 .
  • the channel 11 corresponds to an axis L, and at least one end of the channel 11 is an open end for passage of needles, medicaments or implants to be implanted.
  • the channel 11 provides necessary components for installing the injection device 1 .
  • the stopper 12 is disposed in the channel 11 , and the stopper 12 is a bump or flange structure extending from the inner surface of the sleeve 10 toward the channel 11 .
  • the stopper 12 is used to limit the moving position or distance of the movable component in the channel 11 relative to the sleeve 10 along the axis L.
  • the sleeve 10 can be made of a relatively solid material, such as plastic material, metal or alloy, but the invention is not limited thereto.
  • the driving unit 20 and the actuating assembly 30 are both arranged in the channel 11 of the sleeve 10 .
  • the driving unit 20 can drive the actuating assembly 30 to move in a first direction (in the present invention, the aforementioned first direction is defined as a direction approaching the driving unit 20), and the actuating assembly 30 can move relative to the sleeve. 10 and the drive unit 20 move individually along the axis L within the channel 11 .
  • the driving unit 20 may use electric driving or magnetic driving to drive the actuating component 30 to move in the first direction.
  • the actuating component 30 includes an elastic member 31 , a first component 32 and a second component 33 .
  • the elastic member 31 includes a first end 311 and a second end 312 .
  • the first component 32 is connected to the first end 311 of the elastic member 31
  • the second component 33 is connected to the second end 312 of the elastic member 31 .
  • the elastic member 31 is a tension spring.
  • the first component 32 and the second component 33 can be made of stronger materials, such as plastic materials, metals or alloys, but the invention is not limited thereto.
  • the object to be implanted or the medicine to be injected can be installed in the channel 11 of the sleeve 10 and located on the side of the second part 33 of the actuating assembly 30 away from the first part 32 .
  • the stopper 12 of the sleeve 10 is disposed between the first component 32 and the second component 33 of the actuating assembly 30, and the first component 32 or the second component 33 moves in the channel 11. It cannot pass through the stopper 12 , and only the elastic member 31 can move freely through the stopper 12 . That is to say, the first component 32 will be restricted from moving in the channel 11 on one side of the stopper 12 , while the second component 33 will be restricted from moving in the channel 11 on the opposite side of the stopper 12 .
  • the first component 32 is disposed between the driving unit 20 and the stopper 12 , and the first component 32 is detachably combined with the driving unit 20 .
  • the second component 33 When the first component 32 is combined with the drive unit 20 , the second component 33 will contact the stopper 12 and be blocked by the stopper 12 , so that the drive unit 20 can drive the first component 32 toward the first axis along the axis L. When the direction D1 moves, the elastic member 31 will also move and be stretched.
  • the driving unit 20 includes a coupling part 21
  • the first component 32 includes a corresponding coupling part 322 .
  • the driving unit 20 can be coupled to the corresponding coupling portion 21 of the first component 32 through the coupling portion 21 .
  • the coupling part 21 and the corresponding coupling part 21 match each other in terms of structural design.
  • the driving unit 20 is a motor
  • the coupling part 21 is a hook structure
  • the corresponding coupling part 322 is a snap-fitable structure.
  • the coupling part 21 is a plug structure
  • the corresponding coupling part 322 is a socket structure that can match the plug structure.
  • the structures adopted by the aforementioned coupling portion 21 and the corresponding coupling portion 322 can also be interchanged with each other.
  • the actuating assembly 30 further includes a guide rod 34 .
  • One end of the guide rod 34 is connected to the second component 33 , and the other end of the guide rod 34 extends along the axis L and penetrates the elastic member 31 and the first component 32 .
  • the first part 32 also includes a through hole 321 and the guide rod 34 can pass through the through hole 321 .
  • the length of the guide rod 34 is not less than the length of the elastic member 31 in a stretched state. Therefore, through the arrangement of the guide rod 34, the elastic member 31 and the first component 32 can continue to move in the direction of the axis L regardless of whether the elastic member 31 is in a stretched state or a generally contracted state.
  • the sleeve 10 further includes an operating portion 13 .
  • the user can control the driving unit 20 through the operating part 13 to drive the first component 32 of the actuating assembly 30 to move, control the first component 31 to separate from the driving unit 20 through the operating part 13, or switch, execute or instruct through the operating part 13 Corresponding functions.
  • the operation part 13 may be composed of simple buttons, or the operation part 13 may use a touch screen for the user to operate, or it may be a combination of the above two.
  • the automatic injection device 1 of the invention further includes a power supply unit 40 .
  • the power supply unit 40 is combined with the sleeve 10 to supply the power required by each component in the automatic injection device 1 of the present invention.
  • the power supply unit 40 can be electrically connected to the driving unit 20 , and the power supply unit 40 can also be electrically connected to the operating portion 13 of the sleeve 10 .
  • the power supply unit 40 can be directly disposed in the channel 11 of the sleeve 10 , for example, at the other end of the channel 11 away from the object to be injected or implanted, or the power supply unit 40 can also be independently disposed outside the channel 11 .
  • the power supply unit 40 may be a rechargeable battery module, and the power supply unit 40 may include a charging port 41 .
  • the charging port 41 is exposed on the sleeve 10 so that the charging port 41 can be directly connected to a household socket or a mobile power source through a transmission line to perform charging operations on the power supply unit 40 .
  • the sleeve 10 further includes at least one limiting member 14
  • the second component 33 of the actuating assembly 30 further includes at least one corresponding limiting member 331 .
  • at least one corresponding limiting part 331 cooperates with at least one limiting part 14 so that the second part 33 can keep moving along the axis L.
  • Each limiting member 14 is a bump
  • each corresponding limiting member 41 is a linear groove for the insertion and movement of the bump, and the linear groove extends along the parallel axis L direction.
  • the structures of the aforementioned limiting members 14 and corresponding limiting members 41 are interchangeable.
  • the number and position of the limiting parts 14 will correspond to the number and position of the corresponding limiting parts 41 .
  • Figure 2 is a schematic diagram of the first embodiment of the automatic injection device of the present invention during the injection operation.
  • Figure 3 is a schematic diagram of the first embodiment of the automatic injection device of the present invention after the injection operation. .
  • the user when the user wants to use the automatic injection device 1 of the present invention to perform an injection operation, the user can first control the power supply unit 40 to start power supply through the operating member 12 . Because the driving unit 20 is combined with the first component 32 of the actuating assembly 30, and the second component 33 of the actuating assembly 30 will be blocked by the stopper 12, when the power supply unit 40 supplies power to the driving unit 20, the driving unit 20 will The coupling portion 21 drives the corresponding coupling portion 322 of the first component 32, thereby causing the first component 32 to move along the axis L toward the first direction D1, and the elastic member 31 will also move accordingly and be stretched. Since the elastic potential energy provided by the elastic member 31 is proportional to the square of its movement distance, when the movement distance of the elastic member 31 is larger, more elastic potential energy will be stored.
  • the equation for elastic potential energy Ep is as follows:
  • k is the elastic coefficient of the spring
  • x is the movement distance of the spring
  • the driving unit 20 drives the first component 32 to move to the set distance in the first direction D1
  • the driving unit 20 will stop driving and keep the elastic member 31 in a stretched state.
  • the aforementioned set distance can be adjusted or changed according to different elastic members 31 or design requirements.
  • the driving unit 20 can automatically separate the first component 32 , or the user can control the first component 32 to separate from the driving unit 20 through the operating part 13 .
  • the driving unit 20 is a motor
  • the coupling part 21 is a hook structure
  • the corresponding coupling part 322 is a buckle structure.
  • the driving unit 20 can automatically perform reverse rotation, or perform reverse rotation through the operating portion 13, so that the coupling portion 21 of the driving unit 20 is separated from the corresponding coupling portion 322 of the first component 32, thereby controlling the separation of the first component 32 from the driving unit 20. .
  • the elastic potential energy of the elastic component 31 in the stretched state is released, so that the elastic component 31 drives the second component 33 toward the axis L along the axis L.
  • the second direction D2 (that is, the opposite direction of the first direction D1) moves quickly. Therefore, the aforementioned object to be implanted or the medicine to be injected can be pushed through the second component 33 to perform the injection operation.
  • the automatic injection device 1 of the present invention can complete the rapid injection operation by increasing the elastic potential energy of the elastic member 31, effectively shortening the injection operation time.
  • Figure 4 is a cross-sectional view of the second embodiment of the automatic injection device of the present invention.
  • Figure 5 is a schematic diagram of the second embodiment of the automatic injection device of the present invention during the injection operation.
  • Figure 6 This is a schematic diagram of the second embodiment of the automatic injection device of the present invention after executing the injection operation.
  • the second embodiment of the automatic injection device of the present invention is a variation of the aforementioned first embodiment.
  • the driving unit 20a is an electromagnet
  • the first component 32a is a permanent magnet.
  • the driving unit 20a cancels the design of the coupling part
  • the first component 32 cancels the design of the corresponding coupling part, and only uses magnetic force as the connection between the driving unit 20a and the first component.
  • the driving force for combination or separation between 32a.
  • the drive unit 20 when the power supply unit 40 supplies power to the drive unit 20, the drive unit 20 will generate magnetic force and generate corresponding magnetic poles on both sides. At this time, with the design of the first component 32a as a permanent magnet, the drive unit 20 and A magnetic attraction force is formed between the first components 32a, thereby driving the first component 32a to move along the axis L toward the first direction D1, and the elastic member 31 will also move accordingly and be stretched.
  • the driving unit 20 drives the first component 32 to move to the set distance x in the first direction D1
  • the driving unit 20 and the first component 32 are combined with each other due to magnetic attraction, and keep the elastic member 31 in a stretched state.
  • the driving unit 20 will automatically stop driving or be controlled by the user through the operating part 13 to stop driving, so that the originally generated magnetic force disappears; or the driving unit 20 will provide a reverse current, so that the magnetic force generated on both sides will disappear.
  • the magnetic poles are opposite.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (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

La présente invention concerne un appareil d'injection automatique pour effectuer des opérations d'injection rapide. L'appareil d'injection automatique comprend un manchon, une unité d'entraînement et un ensemble d'actionnement. Le manchon comprend en outre un canal et une partie d'arrêt. L'ensemble d'actionnement est disposé de façon mobile à l'intérieur du canal, et l'ensemble d'actionnement comprend en outre un élément élastique, une première partie et une seconde partie. Deux extrémités de l'élément élastique sont reliées à la première partie et à la seconde partie, respectivement, et la première partie est combinée de manière amovible à l'unité d'entraînement. L'unité d'entraînement peut entraîner la première partie à se déplacer, et la seconde partie est arrêtée par la partie d'arrêt, de telle sorte que l'élément élastique est maintenu dans un état étiré. Lorsque la première partie est détachée de l'unité d'entraînement, l'énergie potentielle élastique de l'élément élastique dans l'état étiré amène l'élément élastique à entraîner la seconde partie à se déplacer dans une direction opposée, de telle sorte qu'une opération d'injection rapide est effectuée.
PCT/CN2022/106381 2022-07-19 2022-07-19 Appareil d'injection automatique WO2024016140A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/106381 WO2024016140A1 (fr) 2022-07-19 2022-07-19 Appareil d'injection automatique

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Application Number Priority Date Filing Date Title
PCT/CN2022/106381 WO2024016140A1 (fr) 2022-07-19 2022-07-19 Appareil d'injection automatique

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002017996A1 (fr) * 2000-08-29 2002-03-07 Novo Nordisk A/S Dispositif automatique d'injection a retrait de l'aiguille par torsion
CN101267856A (zh) * 2005-09-22 2008-09-17 拜耳制药股份有限公司 用于双腔安瓿的自动注射装置
CN202223679U (zh) * 2011-09-19 2012-05-23 黄瑛 胰岛素免痛注射自控器
US20140364808A1 (en) * 2012-02-27 2014-12-11 Roche Diagnostics International Ag Spring force assembly for biasing or actuating stoppers of syringes, injection pen cartridges and the like
CN104812426A (zh) * 2012-11-23 2015-07-29 新注射系统有限公司 自动注射器组件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002017996A1 (fr) * 2000-08-29 2002-03-07 Novo Nordisk A/S Dispositif automatique d'injection a retrait de l'aiguille par torsion
CN101267856A (zh) * 2005-09-22 2008-09-17 拜耳制药股份有限公司 用于双腔安瓿的自动注射装置
CN202223679U (zh) * 2011-09-19 2012-05-23 黄瑛 胰岛素免痛注射自控器
US20140364808A1 (en) * 2012-02-27 2014-12-11 Roche Diagnostics International Ag Spring force assembly for biasing or actuating stoppers of syringes, injection pen cartridges and the like
CN104812426A (zh) * 2012-11-23 2015-07-29 新注射系统有限公司 自动注射器组件

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