技术领域technical field
本实用新型涉及一种电动式无针注射装置,属于医疗产品领域。The utility model relates to an electric needle-free injection device, which belongs to the field of medical products.
背景技术Background technique
1.无针注射是经皮给药的一种新途径，与传统针刺药物注射相比，无针注射器可以自行注射、操作方便、安全、注射时无疼痛感、注射效率高以及注射后药物吸收率高的特点，无针注射技术在临床医疗及家庭保健方面的应用日渐广泛。1. Needle-free injection is a new way of transdermal drug delivery. Compared with traditional acupuncture drug injection, needle-free syringe can be injected by itself, easy to operate, safe, pain-free during injection, high injection efficiency and drug delivery after injection. With the characteristics of high absorption rate, the application of needle-free injection technology in clinical medicine and family health care is becoming more and more extensive.
2.传统无针注射器主要是机械式无针注射器，其包括注射器的推进装置和加压装置;2. Traditional needle-free injectors are mainly mechanical needle-free injectors, which include the propulsion device and pressurization device of the syringe;
3.传统机械式无针注射器实现起来较复杂，推进装置需要经常从加压装置中取上取下，工作量较大，不够便捷;3. Traditional mechanical needle-free injectors are more complicated to implement, and the propulsion device needs to be removed from the pressurizing device frequently, which is a heavy workload and not convenient enough;
4.传统机械式无针注射器自动化程度不够高，每一次喷射过程需要周期较长，而且需要格外注意一定的安全措施，以防止错误喷射，对操作人员的要求较高，这不利于需要经常注射者（如糖尿病患者）的使用;4. The automation of traditional mechanical needle-free injectors is not high enough. Each injection process requires a long cycle, and special attention must be paid to certain safety measures to prevent wrong injections. The requirements for operators are high, which is not conducive to frequent injections. patients (such as diabetics);
5.传统机械式无针注射器包含两个主要部分，而且加压装置较笨重，携带不便。5. Traditional mechanical needle-free injectors consist of two main parts, and the pressurizing device is bulky and inconvenient to carry.
实用新型内容Utility model content
针对上述现有情况,本实用新型旨在针对机械式无针注射器的实现方法进行改进,以提高无针注射器使用的便捷性、安全性和可靠性,使得注射过程更加自动化。In view of the above existing situation, the utility model aims to improve the realization method of the mechanical needle-free injector, so as to improve the convenience, safety and reliability of the needle-free injector, and make the injection process more automatic.
本实用新型是通过以下技术方案来实现的:The utility model is achieved through the following technical solutions:
一种电动式无针注射推进装置，包括机械本体和电控装置，所述机械本体包含推进装置、传动机构及外套，所述推进装置包括套筒、可在套筒内腔中往复移动的推杆、套在推杆上的压缩弹簧，所述套筒前端设置有与安瓿瓶相连接的内螺纹，后端通过外螺纹与外套相连接，所述推杆后端开有齿条；An electric needle-free injection propulsion device, comprising a mechanical body and an electric control device, the mechanical body includes a propulsion device, a transmission mechanism and a casing, the propulsion device includes a sleeve, a pusher capable of reciprocating movement in the inner cavity of the sleeve Rod, a compression spring set on the push rod, the front end of the sleeve is provided with an internal thread connected with the ampoule bottle, the rear end is connected with the jacket through an external thread, and the rear end of the push rod is provided with a rack;
所述传动机构包括电机，通过水平设置的电机安装板固定在外套内，所述电机的输出轴连接有小圆锥齿轮；中间轴，水平设置在外套内，所述中间轴上同轴地设置有与小圆锥齿轮相啮合的大圆锥齿轮、与推杆后端的齿条相啮合的不完全齿轮；The transmission mechanism includes a motor, which is fixed in the outer casing by a motor mounting plate arranged horizontally, and a small bevel gear is connected to the output shaft of the motor; an intermediate shaft is arranged horizontally in the outer casing, and the intermediate shaft is coaxially provided with The large bevel gear meshed with the small bevel gear, the incomplete gear meshed with the rack at the rear end of the push rod;
所述电控装置包括单片机及与该单片机电路连接的启动按键和发射按键，所述单盘机用于控制电机的通电时间及间隔，所述启动按键和发射按键分别用于启动电机和启动注射。The electronic control device includes a single-chip microcomputer and a start button and a launch button connected to the single-chip circuit. The single-disc computer is used to control the power-on time and interval of the motor. The start button and the launch button are used to start the motor and start the injection respectively. .
所述传动机构包括一组圆锥齿轮副和一对不完全齿轮齿条副，通过圆锥齿轮实现电机的减速和增大电机转速扭矩，再通过一对不完全齿轮齿条的传动将电机的旋转运动转化为推杆的直线运动从而实现推进装置的推动作用。The transmission mechanism includes a set of bevel gear pairs and a pair of incomplete rack and pinion pairs. The deceleration of the motor and the increase of the motor speed and torque are realized through the bevel gears, and the rotational movement of the motor is achieved through the transmission of a pair of incomplete rack and pinions. Converted into linear motion of the push rod to realize the pushing action of the propulsion device.
当按下启动按键时，通过单片机的控制实现电路的通电时长和间隔，从而控制齿轮旋转角度，实现推杆的推动并保证卡住不完全齿轮最后一个轮齿。当按下发射按键，不完全齿轮继续转过一个角度并与齿条脱离啮合，实现推杆的弹射。When the start button is pressed, the power-on time and interval of the circuit are realized through the control of the single-chip microcomputer, thereby controlling the rotation angle of the gear, realizing the push of the push rod and ensuring that the last tooth of the incomplete gear is stuck. When the launch button is pressed, the incomplete gear continues to rotate through an angle and disengages from the rack to realize the ejection of the push rod.
本实用新型与现有技术相比，在机构上大量进行简化，部件少，加工方便，成本低，不仅操作简单、可调，而且自动化程度、安全性和可靠性大大增加。 Compared with the prior art, the utility model greatly simplifies the mechanism, has fewer components, is convenient to process, and has low cost. It is not only simple and adjustable in operation, but also has greatly increased automation, safety and reliability. the
附图说明Description of drawings
图1为本实用新型推杆处于初始状态的结构示意图。Fig. 1 is a structural schematic diagram of the push rod of the present utility model in its initial state.
图2是图1中A-A处剖视示意图。Fig. 2 is a schematic cross-sectional view at A-A in Fig. 1 .
图3为本实用新型弹簧处于压缩状态的结构示意图。Fig. 3 is a structural schematic diagram of the spring of the present invention in a compressed state.
图中所示为：1-套筒；2-推杆；3-压缩弹簧；4-外螺纹；5-外套； 6-不完全齿轮 ；7-电机安装板；8-电机；9-内螺纹；10-小圆锥齿轮；11-中间轴；12-大圆锥齿轮。As shown in the figure: 1-sleeve; 2-push rod; 3-compression spring; 4-external thread; 5-coat; 6-incomplete gear; 7-motor mounting plate; 8-motor; 9-internal thread ; 10-small bevel gear; 11-intermediate shaft; 12-big bevel gear.
具体实施方式Detailed ways
下面结合附图和实施例对本实用新型作进一步详细的说明。Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
图1和图2分别为推杆处于初始状态的结构示意图和弹簧处于压缩状态的结构示意图。Fig. 1 and Fig. 2 are respectively a structural schematic view of the push rod in an initial state and a structural schematic view of a spring in a compressed state.
一种电动式无针注射推进装置，包括机械本体和电控装置，所述机械本体包含推进装置、传动机构及外套5，所述推进装置包括套筒1、可在套筒1内腔中往复移动的推杆2、套在推杆2上的压缩弹簧3，所述套筒1前端设置有与安瓿瓶相连接的内螺纹9，后端通过外螺纹4与外套5相连接，所述推杆2后端开有齿条；An electric needle-free injection propulsion device, including a mechanical body and an electric control device, the mechanical body includes a propulsion device, a transmission mechanism and a casing 5, and the propulsion device includes a sleeve 1 that can reciprocate in the inner cavity of the sleeve 1 The moving push rod 2, the compression spring 3 sleeved on the push rod 2, the front end of the sleeve 1 is provided with an internal thread 9 connected with the ampoule bottle, and the rear end is connected with the jacket 5 through the external thread 4, the push There is a rack at the rear end of the rod 2;
如图2所示，所述传动机构包括电机8，通过水平设置的电机安装板7固定在外套5内，所述电机8的输出轴连接有小圆锥齿轮10；中间轴11，水平设置在外套5内，所述中间轴11上同轴地设置有与小圆锥齿轮10相啮合的大圆锥齿轮12、与推杆2后端的齿条相啮合的不完全齿轮6；As shown in Figure 2, the transmission mechanism includes a motor 8, which is fixed in the outer casing 5 by a horizontal motor mounting plate 7, and the output shaft of the motor 8 is connected with a small bevel gear 10; the intermediate shaft 11 is horizontally arranged in the outer casing 5, the intermediate shaft 11 is coaxially provided with a large bevel gear 12 meshing with the small bevel gear 10 and an incomplete gear 6 meshing with the rack at the rear end of the push rod 2;
所述电控装置包括单片机及与该单片机电路连接的启动按键和发射按键，所述单盘机用于控制电机8的通电时间及间隔，所述启动按键和发射按键分别用于启动电机8和启动注射。Described electric control device comprises single-chip microcomputer and the start key and launch key that are connected with this single-chip microcomputer circuit, and described single-disk machine is used for controlling the energization time and the interval of motor 8, and described start key and launch key are used to start motor 8 and launch respectively. Initiate injection.
操作时，首先将安瓿瓶与套筒1螺纹联接。按下启动按键，电路通电，电机8带动小圆锥齿轮10和大圆锥形齿轮12的转动，同时带动不完全齿轮6转动，进而通过不完全齿轮6驱动齿条推动推杆向右作直线运动，压缩弹簧3被压缩，处于储能状态。当不完全齿轮6与齿条只有一个轮齿保持啮合时，电机8停止，推杆2处于待触发状态。During operation, the ampoule bottle is threadedly connected with the sleeve 1 at first. Press the start button, the circuit is energized, the motor 8 drives the small conical gear 10 and the large conical gear 12 to rotate, and at the same time drives the incomplete gear 6 to rotate, and then drives the rack through the incomplete gear 6 to push the push rod to make a linear motion to the right. The compression spring 3 is compressed and is in an energy storage state. When only one tooth of the incomplete gear 6 and the rack keeps meshing, the motor 8 stops, and the push rod 2 is in a state to be triggered.
这时再按下启动按键，不完全齿轮6继续顺时针转动，不完全齿轮6与齿条脱离啮合，推杆2在压缩弹簧3的作用下向左弹射，完成注射。Press the start button again at this time, the incomplete gear 6 continues to rotate clockwise, the incomplete gear 6 disengages from the rack, and the push rod 2 ejects to the left under the effect of the compression spring 3, completing the injection.
发射过程作用时间极短，注射完成后，单片机控制电路自动切换至断电状态，整个装置进入保护状态，直到下一次装药完成后按下启动按钮方可继续工作。The action time of the firing process is very short. After the injection is completed, the single-chip microcomputer control circuit automatically switches to the power-off state, and the whole device enters the protection state. It will not continue to work until the next charge is completed and the start button is pressed.
由于有单片机控制，在某一次按下启动按钮后，若相隔一定时间内未按下发射按钮，则单片机控制电路自动切换至断电状态，整个装置进入保护状态，防止操作错误引起不良事故。Due to the single-chip microcomputer control, after pressing the start button once, if the launch button is not pressed within a certain period of time, the single-chip microcomputer control circuit will automatically switch to the power-off state, and the entire device will enter the protection state to prevent accidents caused by operating errors.
本实用新型在机构上实现推动装置和加压装置合二为一，更加简单便携，采用电路控制使自动程度大大增加，更加方便操作者的使用，也更保证了安全。The utility model realizes the combination of the pushing device and the pressurizing device in the mechanism, which is more simple and portable, and the automatic degree is greatly increased by adopting the circuit control, which is more convenient for the operator to use and ensures safety.
本实用新型的上述实施例仅仅是为清楚地说明本实用新型所作的举例，而并非是对本实用新型的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型权利要求的保护范围之内。The above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089164.1UCN203736632U (en) | 2014-02-28 | 2014-02-28 | Electric needle-free injection propulsion device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089164.1UCN203736632U (en) | 2014-02-28 | 2014-02-28 | Electric needle-free injection propulsion device |
| Publication Number | Publication Date |
|---|---|
| CN203736632Utrue CN203736632U (en) | 2014-07-30 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089164.1UExpired - Fee RelatedCN203736632U (en) | 2014-02-28 | 2014-02-28 | Electric needle-free injection propulsion device |
| Country | Link |
|---|---|
| CN (1) | CN203736632U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103816587A (en)* | 2014-02-28 | 2014-05-28 | 华南理工大学 | Electric needle-free injection propulsion plant |
| CN104296709A (en)* | 2014-10-29 | 2015-01-21 | 国家电网公司 | Automatic telescopic measurement rod |
| CN104338231A (en)* | 2014-10-29 | 2015-02-11 | 俞阿雪 | Extrusion device for skin injury treatment ointment |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103816587A (en)* | 2014-02-28 | 2014-05-28 | 华南理工大学 | Electric needle-free injection propulsion plant |
| CN104296709A (en)* | 2014-10-29 | 2015-01-21 | 国家电网公司 | Automatic telescopic measurement rod |
| CN104338231A (en)* | 2014-10-29 | 2015-02-11 | 俞阿雪 | Extrusion device for skin injury treatment ointment |
| CN104296709B (en)* | 2014-10-29 | 2017-01-11 | 国家电网公司 | Automatic telescopic measurement rod |
| CN104338231B (en)* | 2014-10-29 | 2017-02-15 | 俞阿雪 | Extrusion device for skin injury treatment ointment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20140730 Termination date:20200228 | |
| CF01 | Termination of patent right due to non-payment of annual fee |