技术领域technical field
本发明属于医疗器材中皮下给药系统技术领域，具体是一种用于人体药物微量喷射的治疗设备。The invention belongs to the technical field of subcutaneous drug delivery system in medical equipment, in particular to a treatment device for micro-injection of human medicine.
背景技术Background technique
目前常用的治疗设备大都就是一直沿用下来的口服、手术、注射三大手段，还有包括非主流的使用不同波段的电磁频率治疗仪、以及电疗、热疗、光疗等作物理治疗，另外有一些中医的针、灸、针刀及手法推拿等古老的疗法。而最近兴起的透皮靶向给药技术和纳米磁粉靶向热疗技术等精确给药技术尚处在实验阶段，还没有临床应用。通过高速射流直接射入皮下组织的喷射给药技术正重新成为一种重要给药途径。喷射注射技术与传统的有针注射相比，具有一系列优点：如操作简单、吸收效果好、消除针刺感染、减少针头处理的环境污染等。但是目前临床应用的喷射注射系统存在着严重缺陷：喷射注射只在一次动作内完成，所以不能实现持续控释给药；另外喷射深度不可控，因此当喷射深度过深、射流触及到皮肤组织下的神经系统时，会伴有较强的疼痛感。近年来，研究人员尝试用不同的驱动方式来将一次性的喷射流改为间隙式的微量喷射。例如将压电叠堆驱动器应用于喷射注射技术，利用高压电极在液体中间隙放电产生间隙的气泡来驱动液体从微喷口中喷出，形成脉冲式微喷流；最近的研究则利用固体脉冲激光作用在液体上产生间隙的汽泡来驱动液体从微喷口喷出，以实现微喷给药。喷射给药治疗仪原理就是利用刹间高压对流性药物的冲击通过微孔产生药流微创式的进入病人的靶向病灶，同时可以通过使用和疾病相对应的不同药物，控制药流进入病灶的深度和范围，以达到治疗的作用。At present, most of the commonly used treatment equipment are the three methods of oral administration, surgery, and injection that have been used all the time. There are also non-mainstream electromagnetic frequency therapeutic instruments using different bands, as well as electrotherapy, hyperthermia, phototherapy, etc. for physical therapy. Ancient treatments such as acupuncture, moxibustion, acupotomy and massage in traditional Chinese medicine. The recently emerging precise drug delivery technologies such as transdermal targeted drug delivery technology and nano-magnetic powder targeted hyperthermia technology are still in the experimental stage and have not yet been applied clinically. Injection drug delivery technology, which injects directly into the subcutaneous tissue through a high-speed jet, is re-emerging as an important route of drug delivery. Compared with traditional needle injection, jet injection technology has a series of advantages: such as simple operation, good absorption effect, elimination of needle stick infection, and reduction of environmental pollution caused by needle disposal. However, there are serious defects in the current clinically applied jet injection system: the jet injection is only completed in one action, so it cannot achieve continuous controlled release of drug delivery; in addition, the jet depth is uncontrollable, so when the jet depth is too deep and the jet touches the skin When the nervous system is affected, it will be accompanied by strong pain. In recent years, researchers have tried to use different driving methods to change the one-off jet flow into intermittent micro-injection. For example, the piezoelectric stack driver is applied to the injection injection technology, and the bubbles in the gap generated by the gap discharge of the high-voltage electrode in the liquid are used to drive the liquid to be ejected from the micro-nozzle to form a pulsed micro-jet flow; recent research uses the action of a solid-state pulsed laser Bubbles in the gaps are generated on the liquid to drive the liquid to be sprayed out from the micro nozzles to realize micro spraying of medicines. The principle of jet drug delivery treatment instrument is to use the impact of high-pressure convective drugs to generate drug flow through micropores to enter the patient's targeted lesion in a minimally invasive manner. At the same time, it can control the depth of drug flow into the lesion by using different drugs corresponding to the disease. And range, in order to achieve the therapeutic effect.
连续微量喷射给药治疗仪是一个靶向、快速、微创的人体进药平台，它可以把对症的液态药物，通过各类内镜中的治疗通道或者通过穿刺导管、活检导管、介入导管等方法，在外部X线、DSA、B超等影像设备的观察、导引下，直接把药物送到病灶处，实行对病灶施药，达到定点清除的目的。该治疗仪主要应用于栓塞、消栓、药流直接进入人体屏障部位、冲击人体的禁区、注射治疗等方面，其主要特点是疗效好、无后遗症、治疗时间短、节省费用以及减少医生的劳动强度。The continuous micro-injection drug delivery therapeutic instrument is a targeted, rapid and minimally invasive human drug delivery platform, which can deliver symptomatic liquid drugs through the treatment channels in various endoscopes or through puncture catheters, biopsy catheters, interventional catheters, etc. Method: Under the observation and guidance of external X-ray, DSA, B-ultrasound and other imaging equipment, the drug is directly delivered to the lesion, and the drug is applied to the lesion to achieve the purpose of fixed-point removal. The therapeutic instrument is mainly used in embolism, embolism, drug flow directly into the barrier parts of the human body, impacting the restricted area of the human body, injection therapy, etc. Its main features are good curative effect, no sequelae, short treatment time, cost saving and labor intensity of doctors. .
发明内容Contents of the invention
本发明的目的是针对现有技术提供了一种分体式的、以音圈电机为动力的药物微量喷射治疗仪。The object of the present invention is to provide a split-type medical micro-injection therapeutic instrument driven by a voice coil motor in view of the prior art.
为实现上述目的，本发明所采用的技术方案为：To achieve the above object, the technical solution adopted in the present invention is:
本发明包括喷射装置、动力驱动装置和药物储存装置，药物储存装置通过软管与动力驱动装置中的安瓿连接，喷射装置由动力驱动装置驱动。The invention comprises a spraying device, a power driving device and a medicine storage device, the medicine storage device is connected with the ampoule in the power driving device through a hose, and the spraying device is driven by the power driving device.
所述的动力驱动装置包括由直流电源控制的音圈电机，音圈电机前部连接偶合套，偶合套与安瓿的活塞杆连接，安瓿的出液口通过软管与喷射装置连接；所述偶合套包括安装在音圈电机前端的偶合后套和带螺母固定安瓿的活塞杆的偶合前套。The power drive device includes a voice coil motor controlled by a DC power supply, the front of the voice coil motor is connected to a coupling sleeve, the coupling sleeve is connected to the piston rod of the ampoule, and the liquid outlet of the ampoule is connected to the injection device through a hose; the coupling The sleeve includes a coupling rear sleeve mounted on the front end of the voice coil motor and a coupling front sleeve with a nut to fix the piston rod of the ampoule.
所述的安瓿包括一个筒体，筒体后端供活塞进入，并且带有第一套盖；筒体的上端带有进药单向阀；筒体的前端内壁径向内凹，凸台部分嵌有第一密封圈，第一密封圈被第一喷射套顶住；第一喷射套的后端嵌在筒体的内凹处，前端凸出，中间开有出液口；第一喷射套内嵌第一弹簧和阀芯；弹簧座在第一喷射套内顶住阀芯；阀芯是一后端为圆锥体，前端为圆柱体的阀体，圆柱体的圆周上均匀分布两个以上沿轴向的槽，圆锥体与第一密封圈的内圈配合。The ampoule includes a cylinder, the rear end of the cylinder is for the piston to enter, and has a first cover; the upper end of the cylinder has a one-way valve for feeding medicine; the inner wall of the front end of the cylinder is radially concave, and the boss part The first sealing ring is embedded, and the first sealing ring is supported by the first spray sleeve; the rear end of the first spray sleeve is embedded in the inner recess of the cylinder body, the front end protrudes, and there is a liquid outlet in the middle; the first spray sleeve The first spring and the valve core are embedded; the spring seat supports the valve core in the first injection sleeve; the valve core is a valve body with a cone at the rear end and a cylinder at the front end, and more than two valves are evenly distributed on the circumference of the cylinder Along the axial groove, the cone cooperates with the inner ring of the first sealing ring.
所述喷射装置包括手持圆柱壳体，壳体上带有控制按钮，壳体管状前端内有一圆柱状筒体，筒体的一端有一进液接头，接头内为一带通孔的圆锥体用来接套软管，外面有与筒体外沿螺纹配合的第三套盖，第三套盖旋紧后将软管压紧；筒体的前端包括第二密封圈、第二喷射套和第四套盖，第二喷射套前端带有微小的喷孔，第四套盖旋紧后将第二喷射套固定在筒体上。The injection device includes a hand-held cylindrical shell with control buttons, a cylindrical barrel in the tubular front end of the shell, a liquid inlet joint at one end of the shell, and a cone with a through hole in the joint for connecting There is a third set of cover on the outside that is threadedly matched with the outer edge of the cylinder, and the hose is compressed after the third cover is tightened; the front end of the cylinder includes the second sealing ring, the second spray sleeve and the fourth cover , the front end of the second spray sleeve has tiny spray holes, and the fourth cover is screwed tightly to fix the second spray sleeve on the cylinder body.
本发明采用分体式设计，动力驱动装置和药物储存装置可以置放于背包或腰带中，因而手持式的喷射装置体积及重量可以大幅度减少，便于快速注射。另外由于音圈电机具有很高的加速率，能够提供0.7N-1000N的强大动力，瞬间使药液产生高压，而且它具有很高的精度，因此本发明可以实现精确剂量及大喷射压力喷射，适合医疗机构特别是基层医疗机构的使用。The invention adopts a split design, and the power drive device and the drug storage device can be placed in a backpack or a belt, so that the volume and weight of the hand-held injection device can be greatly reduced, and it is convenient for rapid injection. In addition, because the voice coil motor has a very high acceleration rate, it can provide a strong power of 0.7N-1000N, and instantly make the liquid medicine generate high pressure, and it has high precision, so the present invention can realize accurate dosage and high injection pressure injection, It is suitable for use in medical institutions, especially primary medical institutions.
附图说明Description of drawings
图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2为初始位置时各部件状态示意图；Figure 2 is a schematic diagram of the state of each component at the initial position;
图3a和图3b为初始位置时关键部件状态示意图；Figure 3a and Figure 3b are schematic diagrams of the state of key components at the initial position;
图4为喷射完成时各部件状态示意图；Figure 4 is a schematic diagram of the state of each component when the injection is completed;
图5a和图5b为喷射完成时关键部件状态示意图；Figure 5a and Figure 5b are schematic diagrams of the state of key components when the injection is completed;
图6为音圈电机的结构示意图；Fig. 6 is a structural schematic diagram of a voice coil motor;
图7为安瓿的结构示意图；Fig. 7 is the structural representation of ampoule;
图8为喷射装置的结构示意图。Fig. 8 is a schematic structural view of the injection device.
图中，喷射装置1、动力驱动装置2、药物储存装置3、安瓿4、音圈电机5、偶合套6、偶合后套61、偶合前套62、活塞杆7、铁磁圆柱8、永久磁铁9、管状线圈10、工作气隙11、线圈支撑12、第一套盖13、筒体14、单向阀15、第一密封圈16、第二套盖17、第一喷射套18、第一弹簧19、阀芯20、圆锥体202、圆柱体201、控制按钮21、后盖22、第三套盖23、圆锥体24、圆柱状筒体25、第二密封圈26、第四套盖27、第二喷射套28、手持圆柱壳体29、球体阀芯30、第二弹簧31。In the figure, injection device 1, power drive device 2, drug storage device 3, ampoule 4, voice coil motor 5, coupling sleeve 6, coupling rear sleeve 61, coupling front sleeve 62, piston rod 7, ferromagnetic cylinder 8, permanent magnet 9. Tubular coil 10, working air gap 11, coil support 12, first cover 13, cylinder 14, one-way valve 15, first sealing ring 16, second cover 17, first injection cover 18, first Spring 19, spool 20, cone 202, cylinder 201, control button 21, back cover 22, third cover 23, cone 24, cylindrical barrel 25, second sealing ring 26, fourth cover 27 , the second injection sleeve 28, the handheld cylindrical shell 29, the ball valve core 30, and the second spring 31.
具体实施方式detailed description
以下结合附图对本发明作进一步说明。The present invention will be further described below in conjunction with accompanying drawing.
如图1所示，本发明一种用于人体药物连续微量喷射的治疗设备，包括喷射装置1、动力驱动装置2、药物储存装置3，药物储存装置3通过软管与动力驱动装置2的安瓿4连接，喷射装置1由动力驱动装置2驱动；As shown in Figure 1, the present invention is a treatment device for continuous micro-injection of human medicine, including a spraying device 1, a power drive device 2, and a drug storage device 3, and the drug storage device 3 is connected to the ampoule of the power drive device 2 through a hose. 4 connection, the injection device 1 is driven by the power drive device 2;
由于动力及驱动装置通常需要被放置于操作者的背包或腰袋中进行移动操作，因此本设计采用高能量密度的直流电源（如锂电池组）。控制电路接受喷射装置的击发信号后，控制音圈电机5工作，完成喷射。Since the power and driving device usually need to be placed in the operator's backpack or waist bag for mobile operation, this design uses a high-energy-density DC power supply (such as a lithium battery pack). After the control circuit receives the firing signal of the injection device, it controls the voice coil motor 5 to work to complete the injection.
音圈电机5通过偶合套6与安瓿4中的活塞杆7相连接；偶合套6包括偶合后套61和偶合前套62，偶合后套61与音圈电机5前端的螺孔相连接，偶合前套62通过螺母与安瓿4的活塞杆7一端相连接，安瓿4的出液口通过软管与喷射装置1连接。The voice coil motor 5 is connected with the piston rod 7 in the ampoule 4 through the coupling sleeve 6; the coupling sleeve 6 includes a coupling rear sleeve 61 and a coupling front sleeve 62, and the coupling rear sleeve 61 is connected with the screw hole at the front end of the voice coil motor 5, and the coupling The front sleeve 62 is connected with one end of the piston rod 7 of the ampoule 4 through a nut, and the liquid outlet of the ampoule 4 is connected with the injection device 1 through a hose.
如图6所示，音圈电机5包括铁磁圆柱8、永久磁铁9、管状线圈10、工作气隙11和线圈支撑12。永久磁铁9固定在铁磁圆柱8上，管状线圈10设置在线圈支撑12上，永久磁铁9与管状线圈10对应设置，且留有工作气隙11，通过管状线圈10加载电流，管状线圈中的电流切割永久磁铁9产生磁场线，进而产生电磁力推动通电的管状线圈10和线圈支撑12做直线往复运动。As shown in FIG. 6 , the voice coil motor 5 includes a ferromagnetic cylinder 8 , a permanent magnet 9 , a tubular coil 10 , a working air gap 11 and a coil support 12 . The permanent magnet 9 is fixed on the ferromagnetic cylinder 8, the tubular coil 10 is arranged on the coil support 12, the permanent magnet 9 is arranged corresponding to the tubular coil 10, and a working air gap 11 is left, and the current is loaded through the tubular coil 10, and the The electric current cuts the permanent magnet 9 to generate magnetic field lines, and then generates electromagnetic force to drive the energized tubular coil 10 and the coil support 12 to perform linear reciprocating motion.
所述的铁磁圆柱8的截面为“E”型，永久磁铁9固定在其内环壁上，管状线圈10设置在线圈支撑12的线圈槽中。The section of the ferromagnetic cylinder 8 is "E" shape, the permanent magnet 9 is fixed on its inner ring wall, and the tubular coil 10 is arranged in the coil slot of the coil support 12 .
如图7所示，安瓿4包括第一套盖13、筒体14、单向阀15、第一密封圈16、第二套盖17、第一喷射套18、第一弹簧19和阀芯20。活塞杆7从筒体14后端进入，然后通过第一套盖13固定，使得活塞杆7与第一套盖13、筒体14能相对滑动；进药单向阀15设置在筒体14的上端，进药单向阀15通过软管与药物储存装置3连接；筒体14的前端内壁径向内凹，凸台部分嵌有第一密封圈16；第一喷射套18前端凸出，中间开有出液口，第一喷射套18的前端顶住第一密封圈16，后端嵌在筒体14内凹体内；第一喷射套18内设置有第一弹簧19和阀芯20，第一弹簧19顶住阀芯20。As shown in Figure 7, the ampoule 4 includes a first cover 13, a cylinder body 14, a one-way valve 15, a first sealing ring 16, a second cover 17, a first injection cover 18, a first spring 19 and a valve core 20 . The piston rod 7 enters from the rear end of the cylinder body 14, and is then fixed by the first cover 13, so that the piston rod 7 can slide relative to the first cover 13 and the cylinder body 14; At the upper end, the drug feeding check valve 15 is connected to the drug storage device 3 through a hose; the inner wall of the front end of the cylinder body 14 is radially concave, and the boss part is embedded with a first sealing ring 16; the front end of the first injection sleeve 18 protrudes, and the middle There is a liquid outlet, and the front end of the first spray sleeve 18 withstands the first sealing ring 16, and the rear end is embedded in the concave body of the cylinder 14; the first spray sleeve 18 is provided with a first spring 19 and a valve core 20, the second A spring 19 bears against the spool 20 .
所述的阀芯20是一后端为圆锥体202和前端为圆柱体201的阀体，圆柱体201的圆周上均匀分布两个以上沿轴向的槽，圆柱体201的截面为梅花状，圆锥体202与第一密封圈16的内圈配合。The valve core 20 is a valve body with a cone 202 at the rear end and a cylinder 201 at the front end. More than two axial grooves are evenly distributed on the circumference of the cylinder 201. The cross section of the cylinder 201 is quincunx-shaped. The cone 202 cooperates with the inner ring of the first sealing ring 16 .
如图8所示，喷射装置1包括手持圆柱壳体29，壳体29上设置有控制按钮21，壳体29的后端设置有后盖22，后盖22中间设置有通孔；壳体29管状前端内设置有一个圆柱状筒体25，圆柱状筒体25的后端设置有一进液接头，进液接头内为带通孔的圆锥体24，用于外接软管；进液接头外围套有与圆柱状筒体25螺纹链接的第三套盖23，第三套盖23用于压紧与进液接头相接的软管；圆柱状筒体25的前端包括第二密封圈26、第二喷射套28和第四套盖27。As shown in Figure 8, the spraying device 1 includes a hand-held cylindrical housing 29, the housing 29 is provided with a control button 21, the rear end of the housing 29 is provided with a back cover 22, and a through hole is provided in the middle of the back cover 22; the housing 29 A cylindrical barrel 25 is arranged in the tubular front end, and a liquid inlet joint is arranged at the rear end of the cylindrical barrel 25, and the inside of the liquid inlet joint is a cone 24 with a through hole, which is used for externally connecting the hose; There is a third sleeve cover 23 threadedly linked with the cylindrical cylinder body 25, and the third sleeve cover 23 is used to compress the hose connected to the liquid inlet joint; the front end of the cylindrical cylinder body 25 includes a second sealing ring 26, a second Two injection sleeves 28 and the fourth cover 27.
圆柱状筒体25的前端内壁径向内凹，凸台部分嵌有第二密封圈26；第二喷射套28前端凸起，中间开有喷孔，第二喷射套28的后端嵌在圆柱状筒体25内凹体内，顶住第二密封圈26；第二喷射套28的前端凸起穿过第四套盖27中间的通孔，通过第四套盖27与圆柱状筒体25的螺纹连接将第二喷射套28固定。The inner wall of the front end of the cylindrical barrel 25 is radially concave, and the boss part is embedded with a second sealing ring 26; In the concave body of the cylindrical body 25, it withstands the second sealing ring 26; The threaded connection secures the second spray sleeve 28 .
喷射装置1喷射时，压力由活塞杆7压缩液体提供，从安瓿出液口出来的高速射流通过软管与圆锥体进液接头24进入到圆柱状筒体25内部，然后通过第二喷射套28前端微小喷孔射出。When spraying device 1 sprays, the pressure is provided by the piston rod 7 compressing the liquid, and the high-speed jet from the liquid outlet of the ampoule enters the interior of the cylindrical barrel 25 through the hose and the cone liquid inlet joint 24, and then passes through the second spray sleeve 28 Shot from tiny nozzle holes at the front end.
药物储存装置3固定在喷射装置1外壳，其出口通过软管与动力驱动装置2的安瓿4的单向阀相连接；所述的药物储存装置3包括带有刻度的针筒、输液袋；The drug storage device 3 is fixed on the casing of the injection device 1, and its outlet is connected to the one-way valve of the ampoule 4 of the power drive device 2 through a hose; the drug storage device 3 includes a graduated syringe and an infusion bag;
如图2、图3a和图3b所示，整个设备处于初始状态（喷射前）时，音圈电机5和活塞杆7都处于初始位置（未移动），此时进药单向阀15中的球体阀芯30受到药液的压力作用压缩第二弹簧31，药液进入到安瓿；同时初始状态下筒体14内没有压缩药液，阀芯20由于第一弹簧19的作用紧贴着第一密封圈16，喷射装置1与安瓿4之间通道处于封闭状态。As shown in Fig. 2, Fig. 3a and Fig. 3b, when the whole device is in the initial state (before injection), the voice coil motor 5 and the piston rod 7 are in the initial position (not moving), at this time, the medicine feeding check valve 15 The ball valve core 30 compresses the second spring 31 under the pressure of the liquid medicine, and the liquid medicine enters the ampoule; at the same time, there is no liquid medicine compressed in the barrel 14 in the initial state, and the valve core 20 is close to the first spring 19 due to the action of the first spring 19. The sealing ring 16, the channel between the injection device 1 and the ampoule 4 is in a closed state.
如图4、图5a和图5b所示，整个设备处于喷射完成状态（喷射完成，未返回），音圈电机5和活塞杆7都处于末端位置，此时进药单向阀15中的球体阀芯30受到压缩药液和第二弹簧31的作用将安瓿4和药物储存装置3之间的通道密封，药液无法进入到安瓿；同时筒体14内有压缩药液，阀芯20由于压缩药液的作用压缩第一弹簧19，喷射装置1与安瓿4之间的通道处于开通状态。As shown in Figure 4, Figure 5a and Figure 5b, the whole device is in the injection completion state (injection is completed, not returned), the voice coil motor 5 and the piston rod 7 are both at the end position, at this time the ball in the medicine feeding check valve 15 The spool 30 seals the passage between the ampoule 4 and the drug storage device 3 under the action of the compressed medicinal liquid and the second spring 31, so that the medicinal liquid cannot enter the ampoule; at the same time, there is compressed medicinal liquid in the barrel 14, and the spool 20 is compressed due to The action of the liquid medicine compresses the first spring 19, and the channel between the injection device 1 and the ampoule 4 is in an open state.
本发明的工作过程如下：Working process of the present invention is as follows:
喷射前需要先放置好药物储存装置3，通过软管与单向阀15连接，由于液体压力作用，单向阀15的阀芯30压缩第二弹簧31，药液进入筒体14。Before spraying, the drug storage device 3 needs to be placed and connected to the one-way valve 15 through a hose. Due to the liquid pressure, the spool 30 of the one-way valve 15 compresses the second spring 31, and the drug liquid enters the barrel 14.
喷射时，操作者按下手持圆柱壳体29上的连接到控制电路的控制按钮21，控制电路收到控制按钮21发来的信号后给音圈电机5供电，在音圈电机5中，管状线圈10受到电磁力的作用带动线圈支撑12一起向安瓿4方向运动。由于偶合套6连接着音圈电机5和安瓿4的活塞杆7，因此，音圈电机5的运动会推动活塞杆7在安瓿4中运动，从而压缩液体推动阀芯20压缩第一弹簧19，药液从安瓿4中喷出。在这一过程中，由于活塞杆7前进，在第二弹簧31的弹力作用下使球体阀芯30与连接头带圆弧形的内壁紧密配合，液体无法回流到药库；When spraying, the operator presses the control button 21 connected to the control circuit on the handheld cylindrical shell 29, and the control circuit supplies power to the voice coil motor 5 after receiving the signal from the control button 21. In the voice coil motor 5, the tubular The coil 10 is driven by the electromagnetic force to drive the coil support 12 to move towards the ampoule 4 together. Since the coupling sleeve 6 is connected to the voice coil motor 5 and the piston rod 7 of the ampoule 4, the movement of the voice coil motor 5 will push the piston rod 7 to move in the ampoule 4, thereby compressing the liquid to push the spool 20 to compress the first spring 19, and the medicine The liquid is ejected from the ampoule 4. During this process, due to the advancement of the piston rod 7, under the elastic force of the second spring 31, the ball valve core 30 is closely matched with the arc-shaped inner wall of the connecting head, so that the liquid cannot return to the drug store;
喷射完成后立即反向通电，管状线圈10受到反向电磁力的作用，带动线圈支撑12一起向安瓿4反方向运动。通过偶合套6将安瓿4中的活塞杆7拉回，Immediately after the injection is completed, reverse power is applied, and the tubular coil 10 is subjected to the reverse electromagnetic force, driving the coil support 12 to move in the opposite direction to the ampoule 4 together. The piston rod 7 in the ampoule 4 is pulled back through the coupling sleeve 6,
此时由于第一弹簧19的弹力作用，使得阀芯20顶住第一密封圈16，软管与喷射装置1中的液体无法回流到筒体14；同时药物储存装置3中的药液压力作用于单向阀15中的球体阀芯30，压缩第二弹簧31，药液吸入到安瓿4中的筒体14中。At this time, due to the elastic force of the first spring 19, the valve core 20 is pressed against the first sealing ring 16, and the liquid in the hose and the injection device 1 cannot return to the cylinder body 14; at the same time, the pressure of the drug solution in the drug storage device 3 The ball spool 30 in the one-way valve 15 compresses the second spring 31 , and the medicinal solution is sucked into the barrel 14 in the ampoule 4 .
在喷射过程中，由于音圈电机5加速率很高，并且能提供强大的动力，因此通电与反向通电都会在瞬间完成。另外活塞杆7由带螺纹的杆和活塞头通过螺纹连接而成，这样有利用更换不同容积的安瓿。During the spraying process, since the voice coil motor 5 has a high acceleration rate and can provide powerful power, both energization and reverse energization will be completed in an instant. In addition, the piston rod 7 is formed by threaded connection of a threaded rod and a piston head, so that ampoules with different volumes can be replaced.
上述实施例仅用于解释说明本发明的构思，而非对本发明权利保护的限定，凡利用此构思对本发明进行非实质性的改动，均应落入本发明的保护范围。The above-mentioned embodiments are only used to explain the concept of the present invention, but not to limit the protection of the rights of the present invention. Any insubstantial changes made to the present invention by using this concept should fall within the scope of protection of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353092.1ACN104096299B (en) | 2014-07-23 | 2014-07-23 | Therapeutic equipment for the injection of human body medicine trace |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353092.1ACN104096299B (en) | 2014-07-23 | 2014-07-23 | Therapeutic equipment for the injection of human body medicine trace |
| Publication Number | Publication Date |
|---|---|
| CN104096299A CN104096299A (en) | 2014-10-15 |
| CN104096299Btrue CN104096299B (en) | 2016-09-07 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353092.1AActiveCN104096299B (en) | 2014-07-23 | 2014-07-23 | Therapeutic equipment for the injection of human body medicine trace |
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| CN (1) | CN104096299B (en) |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| EE01 | Entry into force of recordation of patent licensing contract | Application publication date:20141015 Assignee:HUZHOU ZHONGAN AGRICULTURAL INTELLIGENT TECHNOLOGY CO., LTD. Assignor:Hangzhou Electronic Science and Technology Univ Contract record no.:2017330000025 Denomination of invention:Therapeutic equipment for jetting small quantity of medicines to human body Granted publication date:20160907 License type:Common License Record date:20170331 |