技术领域technical field
本发明涉及青光眼治疗装置技术领域，具体地指一种用于治疗青光眼的前置式可调控电磁引流阀。The invention relates to the technical field of glaucoma treatment devices, in particular to a pre-type adjustable electromagnetic drainage valve for treating glaucoma.
背景技术Background technique
青光眼是位列全球第二的不可逆性致盲性眼病，也是我国主要致盲性眼病之一，眼压(IOP)会由于房水产生和排出的不平衡而增加，当眼压(IOP)长时间高于正常压力时，其对视神经和视网膜纤维会造成不可逆的损害，导致患者视力下降、甚至造成永久性损伤。Glaucoma is the second irreversible blinding eye disease in the world, and it is also one of the main blinding eye diseases in my country. The intraocular pressure (IOP) will increase due to the imbalance between the production and discharge of aqueous humor. When the intraocular pressure (IOP) increases When the time is higher than normal pressure, it can cause irreversible damage to the optic nerve and retinal fibers, causing the patient's vision to decrease or even cause permanent damage.
对于难治性青光眼，目前国内外最常用的是前房管道置入式的青光眼引流阀置入术，临床大量使用的是前置式青光眼引流阀，以商品名Ahmed为主要代表，通过文丘里原理进行前房内液体的引流。图1为现有的前置式青光眼引流阀置入眼睛前部的示意图，图中绘出了眼睛结构的晶状体1.1a、角膜1.2a、虹膜1.3a、睫状体1.4a和小梁网1.5a，前房1.7a中的房水是由睫状体1.4a产生的，图中箭头表示前房1.7a中的房水的流动方向，现有的青光眼引流阀主要由一条柔韧的硅胶引流管1.6b和一个软质引流盘1.6a组成，硅胶引流管1.6b的一端固定连接在软质引流盘1.6a上，置入时，先将软质引流盘1.6a置于眼外结膜下，再将硅胶引流管1.6b的另一端插于前房1.7a内，使眼内房水通过硅胶引流管1.6b从外口端流出后被眼外组织吸收，达到降低眼内压力目的。For refractory glaucoma, the most commonly used at home and abroad is the anterior chamber catheter-type glaucoma drainage valve implantation, and the front-mounted glaucoma drainage valve is widely used in clinical practice, mainly represented by the trade name Ahmed, through Venturi Principle for the drainage of fluid in the anterior chamber. Fig. 1 is a schematic diagram of the existing pre-type glaucoma drainage valve placed in the front of the eye, in which the lens 1.1a, cornea 1.2a, iris 1.3a, ciliary body 1.4a and trabecular meshwork 1.5 are drawn a, The aqueous humor in the anterior chamber 1.7a is produced by the ciliary body 1.4a. The arrows in the figure indicate the flow direction of the aqueous humor in the anterior chamber 1.7a. The existing glaucoma drainage valve mainly consists of a flexible silicone drainage tube 1.6b and a soft drainage tray 1.6a. One end of the silicone drainage tube 1.6b is fixedly connected to the soft drainage tray 1.6a. Insert the other end of the silicone drainage tube 1.6b into the anterior chamber 1.7a, so that the intraocular aqueous humor flows out from the outer port through the silicone drainage tube 1.6b and is absorbed by the extraocular tissue, thereby reducing intraocular pressure.
现有的引流阀都是利用流体自身的液压力驱动，对眼内压尚不能相对定量的控制，如果引流过度会出现低眼压(IOP)，导致角膜病以至失代偿等严重并发症，同时，由于组织纤维化易造成引流装置堵塞，目前的引流阀缺乏自疏通功能。The existing drainage valves are all driven by the hydraulic pressure of the fluid itself, and the intraocular pressure cannot be controlled quantitatively. If the drainage is excessive, low intraocular pressure (IOP) will occur, leading to serious complications such as corneal disease and decompensation. At the same time, because tissue fibrosis can easily cause blockage of the drainage device, the current drainage valve lacks a self-dragging function.
中国发明专利申请“青光眼阀和青光眼引流装置”(发明专利申请号：201410790648.3，公开号：CN 104490515 A)公开了一种一种青光眼阀和青光眼引流装置，通过在青光眼阀的管体内设置调节件来控制所述管体的出口大小，从而精确控制所述管体内液体的流量，其特征在于，所述调节件包括设置在所述管体的内壁上的至少一个凸起，所述凸起的体积能够在光线的照射下变化，所述青光眼引流装置还包括反射镜和光源，所述反射镜能够将所述光源发出的光线反射到所述凸起所在的位置。其主要缺点在于，引流管的尺寸极小，凸起上的光线角度难以控制，且具体使用时操作困难，难以解决定量控制眼内压的问题。Chinese invention patent application "Glaucoma Valve and Glaucoma Drainage Device" (invention patent application number: 201410790648.3, publication number: CN 104490515 A) discloses a glaucoma valve and glaucoma drainage device, by setting an adjustment member in the tube body of the glaucoma valve to control the size of the outlet of the pipe body, so as to precisely control the flow of liquid in the pipe body, it is characterized in that the adjustment member includes at least one protrusion arranged on the inner wall of the pipe body, and the protrusion The volume can be changed under the irradiation of light, and the glaucoma drainage device also includes a reflector and a light source, and the reflector can reflect the light emitted by the light source to the position of the protrusion. Its main disadvantages are that the size of the drainage tube is extremely small, it is difficult to control the light angle on the protrusion, and it is difficult to operate during specific use, and it is difficult to solve the problem of quantitative control of intraocular pressure.
发明内容Contents of the invention
本发明的目的就是要提供一种用于治疗青光眼的前置式可调控电磁引流阀，其不仅通过控制引流管的引流量解决了控制患者眼内压的问题，还解决了由于组织纤维化造成的引流管堵塞问题。The purpose of the present invention is to provide a pre-type adjustable electromagnetic drainage valve for the treatment of glaucoma, which not only solves the problem of controlling the intraocular pressure of patients by controlling the drainage volume of the drainage tube, but also solves the problem caused by tissue fibrosis. drainage tube blockage problem.
为实现上述目的，本发明所设计一种用于治疗青光眼的前置式可调控电磁引流阀，包括引流盘，所述引流盘上设有引流管，所述引流管内设有引流阀，所述引流阀包括磁性阀块，所述磁性阀块上设有导向柱，所述引流管的引流管壁上设有固定块，所述导向柱套接穿过固定块，所述导向柱一端与磁性阀块连接，所述导向柱另一端设有硬质尖端，所述引流管的内径沿导向柱至磁性阀块方向逐渐减小，所述引流管壁与磁性阀块外周紧密靠接，其还包括外置电磁极，所述外置电磁体与引流阀磁性配合，通过改变外置电磁体的磁通量大小控制引流阀移动。In order to achieve the above object, the present invention designs a pre-type adjustable electromagnetic drainage valve for treating glaucoma, including a drainage plate, a drainage tube is arranged on the drainage plate, a drainage valve is arranged in the drainage tube, and the drainage tube is provided with a drainage valve. The drainage valve includes a magnetic valve block, on which a guide column is arranged, and a fixed block is arranged on the wall of the drainage tube of the drainage tube, and the guide column is sleeved through the fixed block, and one end of the guide column is connected to the magnetic The other end of the guide column is provided with a hard tip, the inner diameter of the drainage tube gradually decreases along the direction from the guide column to the magnetic valve block, and the wall of the drainage tube is in close contact with the outer periphery of the magnetic valve block. It includes an external electromagnetic pole, the external electromagnet is magnetically matched with the drainage valve, and the movement of the drainage valve is controlled by changing the magnetic flux of the external electromagnet.
进一步地，所述引流管内设有限位台，所述固定块设置在限位台上。这样，通过限位台和固定块限定了磁性阀块的移动范围，保证使用时的安全。Further, a limiting platform is arranged inside the drainage tube, and the fixing block is arranged on the limiting platform. In this way, the movement range of the magnetic valve block is limited by the limit table and the fixed block, so as to ensure the safety during use.
更进一步地，所述导向柱和固定块有两个，所述限位台也有两个，所述各个固定块分别设置在限位台上，所述各个导向柱分别套接在各个固定块内。这样，增强了引流阀的稳定性，使其在轴向上自由运动。Furthermore, there are two guide columns and two fixing blocks, and two limiting platforms, each of the fixing blocks is respectively arranged on the limiting platform, and each of the guiding columns is respectively sleeved in each fixing block . In this way, the stability of the diversion valve is enhanced so that it can move freely in the axial direction.
进一步地，所述两个限位台对称设置在引流管的引流管壁上。这样，进一步地增强了引流阀在使用时的稳定性。Further, the two limiting platforms are symmetrically arranged on the drainage tube wall of the drainage tube. In this way, the stability of the drainage valve in use is further enhanced.
更进一步地，所述外置电磁体在使用时设置在引流管轴向，所述外置电磁体与磁性阀块配合使用。这样，在使用时仅需通过更改外置电磁体的磁力，即可达到调整磁性阀块位置的效果。Furthermore, the external electromagnet is arranged in the axial direction of the drainage tube during use, and the external electromagnet is used in cooperation with the magnetic valve block. In this way, the effect of adjusting the position of the magnetic valve block can be achieved only by changing the magnetic force of the external electromagnet during use.
进一步地，所述固定块上设有凸台，所述凸台设置在固定块与磁性阀块之间。这样，在磁性阀块开合度达到最大时，可以缓冲磁性阀块的撞击，并增大固定块与磁性阀块的间隙，保证引流管的引流量。Further, the fixed block is provided with a boss, and the boss is arranged between the fixed block and the magnetic valve block. In this way, when the opening and closing degree of the magnetic valve block reaches the maximum, the impact of the magnetic valve block can be buffered, and the gap between the fixed block and the magnetic valve block can be increased to ensure the drainage capacity of the drainage tube.
更进一步地，所述引流管依次分为宽口段、调节段和窄口段，所述宽口段与窄口段的内径不变，所述宽口段的内径大于窄口段的内径，所述调节段内径沿导向柱至磁性阀块方向逐渐减小，所述宽口段设置在眼部前房与引流阀之间，所述窄口段设置在引流阀与引流盘之间，所述调节段设置在引流阀处，所述磁性阀块与调节段内壁配合，以调节控制引流管的引流量。这样的结构，可以使得组织纤维化造成的引流管堵塞情况降低，当需要疏通时，也有利于导向柱的硬质尖端在轴向移动。Furthermore, the drainage tube is sequentially divided into a wide-mouth section, an adjustment section and a narrow-mouth section, the inner diameters of the wide-mouth section and the narrow-mouth section are the same, and the inner diameter of the wide-mouth section is larger than the inner diameter of the narrow-mouth section, The inner diameter of the adjustment section gradually decreases along the direction from the guide column to the magnetic valve block, the wide mouth section is set between the anterior chamber of the eye and the drainage valve, and the narrow mouth section is set between the drainage valve and the drainage plate, so The adjustment section is arranged at the drainage valve, and the magnetic valve block cooperates with the inner wall of the adjustment section to adjust and control the drainage volume of the drainage tube. Such a structure can reduce the blockage of the drainage tube caused by tissue fibrosis, and also facilitates the axial movement of the hard tip of the guide column when dredging is required.
作为优选项，所述磁性阀块的形状与引流管的调节段内壁形状相同。这样，当测得眼压(IOP)为正常值时，可以通过控制外置电磁体调节磁性阀块移动至调节段的内径最窄端，使得可以磁性阀块可以完全封堵引流管。As a preferred option, the shape of the magnetic valve block is the same as the shape of the inner wall of the adjustment section of the drainage tube. In this way, when the measured intraocular pressure (IOP) is a normal value, the magnetic valve block can be adjusted to move to the narrowest end of the inner diameter of the adjustment section by controlling the external electromagnet, so that the magnetic valve block can completely block the drainage tube.
本发明的优点在于：The advantages of the present invention are:
本发明结构较为简单、便携易用、测量结果客观准确，其可以通过外置电磁体与磁性阀块的配合，根据实际的使用需求对引流管的引流量进行调节，精确控制管腔内液体的流量，使青光眼阀的引流量与患者机体的修复过程相匹配，减少青光眼滤过手术的并发症，且使用方便。其还可以通过具有切割功能的导向柱硬质尖端在管腔中的运动，可以避免因为组织纤维化造成的管腔堵塞，从而实现自疏通，降低手术失败率。The present invention has a relatively simple structure, is portable and easy to use, and has objective and accurate measurement results. Through the cooperation of an external electromagnet and a magnetic valve block, the drainage volume of the drainage tube can be adjusted according to actual use requirements, and the flow of liquid in the lumen can be precisely controlled. Flow rate, so that the drainage volume of the glaucoma valve matches the repair process of the patient's body, reduces complications of glaucoma filtration surgery, and is easy to use. It can also avoid the blockage of the lumen caused by tissue fibrosis through the movement of the hard tip of the guide post with cutting function in the lumen, thereby achieving self-dragging and reducing the failure rate of surgery.
附图说明Description of drawings
图1为背景技术中眼部结构示意图；Fig. 1 is a schematic diagram of the eye structure in the background technology;
图2为本发明的结构示意图；Fig. 2 is a structural representation of the present invention;
图3为引流阀关闭时的结构示意图；Fig. 3 is a structural schematic diagram when the diversion valve is closed;
图4为引流阀打开时的结构示意图。Fig. 4 is a schematic diagram of the structure when the drainage valve is opened.
图中：晶状体1.1a、角膜1.2a、虹膜1.3a、睫状体1.4a、小梁网1.5a、软质引流盘1.6a、硅胶引流管1.6b、前房1.7a、引流盘1、引流管2(其中：引流管壁2.1、宽口段2a、窄口段2b、调节段2c)、引流阀3(其中：磁性阀块3.1、导向柱3.2、硬质尖端3.2a、固定块3.3、凸台3.3a)、外置电磁体4。In the figure: lens 1.1a, cornea 1.2a, iris 1.3a, ciliary body 1.4a, trabecular meshwork 1.5a, soft drainage disc 1.6a, silicone drainage tube 1.6b, anterior chamber 1.7a, drainage disc 1, drainage Tube 2 (among them: drainage tube wall 2.1, wide mouth section 2a, narrow mouth section 2b, adjustment section 2c), drainage valve 3 (among them: magnetic valve block 3.1, guide column 3.2, hard tip 3.2a, fixed block 3.3, Boss 3.3a), external electromagnet 4.
具体实施方式Detailed ways
以下结合附图和具体实施对本发明作进一步的详细描述：Below in conjunction with accompanying drawing and specific implementation the present invention will be described in further detail:
如图2～4，图中所示一种用于治疗青光眼的前置式可调控电磁引流阀，包括引流盘1，所述引流盘1上设有引流管2，所述引流管2内设有引流阀3，所述引流阀3包括磁性阀块3.1，所述磁性阀块3.1上设有导向柱3.2，所述引流管2的引流管壁2.1上设有固定块3.3，所述导向柱3.2套接穿过固定块3.3，所述导向柱3.2一端与磁性阀块3.1连接，所述导向柱3.2另一端设有硬质尖端3.2a，所述引流管2的内径沿导向柱3.2至磁性阀块3.1方向逐渐减小，所述引流管壁2.1与磁性阀块3.1外周紧密靠接，其还包括外置电磁极4，所述外置电磁体4与引流阀3磁性配合，通过改变外置电磁体4的磁通量大小控制引流阀3移动。As shown in Figures 2 to 4, a pre-type adjustable electromagnetic drainage valve for treating glaucoma as shown in the figure includes a drainage plate 1, and a drainage tube 2 is arranged on the drainage plate 1, and a drainage tube 2 is arranged inside the drainage tube 2. There is a drainage valve 3, the drainage valve 3 includes a magnetic valve block 3.1, the magnetic valve block 3.1 is provided with a guide column 3.2, the drainage tube wall 2.1 of the drainage tube 2 is provided with a fixed block 3.3, and the guide column 3.2 Sleeve through the fixed block 3.3, one end of the guide column 3.2 is connected to the magnetic valve block 3.1, the other end of the guide column 3.2 is provided with a hard tip 3.2a, and the inner diameter of the drainage tube 2 is along the guide column 3.2 to the magnetic valve block. The direction of the valve block 3.1 gradually decreases, and the drainage tube wall 2.1 is in close contact with the outer periphery of the magnetic valve block 3.1, which also includes an external electromagnetic pole 4, and the external electromagnet 4 is magnetically matched with the drainage valve 3, and by changing the external The magnitude of the magnetic flux of the electromagnet 4 controls the movement of the diversion valve 3 .
所述引流管2内设有限位台2.2，所述固定块3.3设置在限位台2.2上。所述导向柱3.2和固定块3.3有两个，所述限位台2.2也有两个，所述各个固定块3.3分别设置在限位台2.2上，所述各个导向柱3.2分别套接在各个固定块3.3内。所述两个限位台2.2对称设置在引流管2的引流管壁2.1上。所述外置电磁体4在使用时设置在引流管2轴向，所述外置电磁体4与磁性阀块3.1配合使用。所述固定块3.3上设有凸台3.3a，所述凸台3.3a设置在固定块3.3与磁性阀块3.1之间。所述引流管2依次分为宽口段2a、调节段2c和窄口段2b，所述宽口段2a与窄口段2b的内径不变，所述宽口段2a的内径大于窄口段2b的内径，所述调节段2c内径沿导向柱3.2至磁性阀块3.1方向逐渐减小，所述宽口段2a设置在眼部前房与引流阀3之间，所述窄口段2b设置在引流阀3与引流盘1之间，所述调节段2c设置在引流阀3处，所述磁性阀块3.1与调节段2c内壁配合，以调节控制引流管2的引流量。所述磁性阀块3.1的形状与引流管2的调节段2c内壁形状相同。The drainage tube 2 is provided with a limiting platform 2.2, and the fixing block 3.3 is arranged on the limiting platform 2.2. There are two guide columns 3.2 and two fixed blocks 3.3, and two limit platforms 2.2, each of the fixed blocks 3.3 is respectively arranged on the limit platform 2.2, each of the guide columns 3.2 is respectively sleeved on each fixed within block 3.3. The two limiting platforms 2.2 are symmetrically arranged on the drainage tube wall 2.1 of the drainage tube 2 . The external electromagnet 4 is arranged in the axial direction of the drainage tube 2 during use, and the external electromagnet 4 is used in cooperation with the magnetic valve block 3.1. The fixed block 3.3 is provided with a boss 3.3a, and the boss 3.3a is arranged between the fixed block 3.3 and the magnetic valve block 3.1. The drainage tube 2 is sequentially divided into a wide-mouth section 2a, an adjustment section 2c and a narrow-mouth section 2b. The inner diameters of the wide-mouth section 2a and the narrow-mouth section 2b are constant, and the inner diameter of the wide-mouth section 2a is larger than that of the narrow-mouth section. 2b, the inner diameter of the adjustment section 2c gradually decreases along the direction from the guide column 3.2 to the magnetic valve block 3.1, the wide-mouth section 2a is set between the anterior chamber of the eye and the drainage valve 3, and the narrow-mouth section 2b is set Between the drainage valve 3 and the drainage plate 1, the adjustment section 2c is arranged at the drainage valve 3, and the magnetic valve block 3.1 cooperates with the inner wall of the adjustment section 2c to adjust and control the drainage volume of the drainage tube 2. The shape of the magnetic valve block 3.1 is the same as the shape of the inner wall of the adjustment section 2c of the drainage tube 2.
本发明在实际使用时：When the present invention is actually used:
正常状态下，磁性阀块3.1与凸台3.3a接触，房水的引流方向依次从前房、宽口段2a、调节段2c、窄口段2b流入引流盘1中，液体通过调节段2c的引流阀3时，在磁性阀块3.1与引流管壁2.1之间的通道内流动；Under normal conditions, the magnetic valve block 3.1 is in contact with the boss 3.3a, and the drainage direction of the aqueous humor flows into the drainage plate 1 from the anterior chamber, the wide mouth section 2a, the adjustment section 2c, and the narrow mouth section 2b, and the liquid passes through the drainage of the adjustment section 2c When the valve is 3, it flows in the channel between the magnetic valve block 3.1 and the drainage tube wall 2.1;
当需要减少引流量时，通过外置电磁体4产生一个与磁性阀块3.1相吸的磁力，使得磁性阀块3.1带动导向柱3.2向窄口段2b方向移动，使引流管2的通过量减小，从而使前房流向引流盘1的房水液体体积减少；When it is necessary to reduce the amount of drainage, the external electromagnet 4 generates a magnetic force that is attracted to the magnetic valve block 3.1, so that the magnetic valve block 3.1 drives the guide column 3.2 to move toward the narrow mouth section 2b, reducing the throughput of the drainage tube 2. Small, so that the volume of aqueous humor fluid flowing from the anterior chamber to the drainage plate 1 is reduced;
当需要增加引流量时，通过外置电磁体4产生一个与磁性阀块3.1相斥的磁力，使得磁性阀块3.1带动导向柱3.2向宽口段2a方向移动，回到引流阀3打开的状态，从而使前房流向引流盘1的房水液体体积增多。When it is necessary to increase the drainage volume, the external electromagnet 4 generates a magnetic force that repels the magnetic valve block 3.1, so that the magnetic valve block 3.1 drives the guide column 3.2 to move toward the wide mouth section 2a, and returns to the state where the drainage valve 3 is opened , so that the volume of aqueous humor flowing from the anterior chamber to the drainage plate 1 increases.
导向柱3.2远离磁性阀块3.1末端为具有切割功能的硬质尖端3.2a，通过导向柱3.2在引流管2中轴向来回运动，可以实现切割功能，从而自疏通组织纤维化造成的引流管2堵塞。The end of the guide post 3.2 away from the magnetic valve block 3.1 is a hard tip 3.2a with a cutting function, and the guide post 3.2 moves back and forth axially in the drainage tube 2 to realize the cutting function, thereby self-dragging the drainage tube 2 caused by tissue fibrosis clogged.
导向柱3.2的表面具有卡齿，其与固定块3.3内部具有的齿槽相互作用，可以使导向柱3.2在磁性作用下移动，并当外置电磁体4的磁力撤去时，能够固定在某一位置。The surface of the guide column 3.2 has locking teeth, which interact with the tooth grooves inside the fixed block 3.3, so that the guide column 3.2 can move under the action of magnetism, and when the magnetic force of the external electromagnet 4 is removed, it can be fixed at a certain position. Location.
外置电磁体4可以但不限于如下型号：Magstim 220型磁刺激仪和S90圆形线圈，外径9.0cm，最大输出磁场1.9Tesla，其磁力大小可以经由手机或电脑等终端通过无线精确控制。外置电磁体4在实际使用时，可以贴附在患者太阳穴位置，或佩戴在患者的眼镜镜架处，这样，可以使得外置电磁体4在引流管2的轴向方向，方便医护人员操作。The external electromagnet 4 can be but not limited to the following models: Magstim 220 magnetic stimulator and S90 circular coil, with an outer diameter of 9.0cm and a maximum output magnetic field of 1.9Tesla. The magnetic force can be accurately controlled wirelessly through terminals such as mobile phones or computers. In actual use, the external electromagnet 4 can be attached to the patient's temple or worn on the patient's spectacle frame. In this way, the external electromagnet 4 can be placed in the axial direction of the drainage tube 2, which is convenient for medical personnel to operate. .
综上所述，本发明可以精确控制引流管2内房水的流量，使其与患者机体的修复过程相匹配，减少青光眼滤过手术的并发症。To sum up, the present invention can accurately control the flow of aqueous humor in the drainage tube 2 to match the repair process of the patient's body and reduce complications of glaucoma filtration surgery.
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814948.3ACN110522556B (en) | 2019-08-30 | 2019-08-30 | A pre-adjustable electromagnetic drainage valve for the treatment of glaucoma |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814948.3ACN110522556B (en) | 2019-08-30 | 2019-08-30 | A pre-adjustable electromagnetic drainage valve for the treatment of glaucoma |
| Publication Number | Publication Date |
|---|---|
| CN110522556Atrue CN110522556A (en) | 2019-12-03 |
| CN110522556B CN110522556B (en) | 2021-07-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910814948.3AExpired - Fee RelatedCN110522556B (en) | 2019-08-30 | 2019-08-30 | A pre-adjustable electromagnetic drainage valve for the treatment of glaucoma |
| Country | Link |
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| CN (1) | CN110522556B (en) |
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