CN114712030A - Magnetic fluid driven self-reset urethral valve device - Google Patents
Magnetic fluid driven self-reset urethral valve deviceDownload PDFInfo
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- CN114712030A CN114712030ACN202210327082.5ACN202210327082ACN114712030ACN 114712030 ACN114712030 ACN 114712030ACN 202210327082 ACN202210327082 ACN 202210327082ACN 114712030 ACN114712030 ACN 114712030A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0004—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse
- A61F2/0009—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse placed in or outside the body opening close to the surface of the body
- A61F2/0018—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse placed in or outside the body opening close to the surface of the body magnetic
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Abstract
Description
Translated fromChinese技术领域technical field
本发明属于医疗器械领域，涉及一种磁流体驱动的自复位式尿道阀装置，具体涉及一种替代尿道括约肌控制尿道开闭的装置。The invention belongs to the field of medical devices and relates to a magnetic fluid driven self-resetting urethral valve device, in particular to a device for replacing the urethral sphincter to control the opening and closing of the urethra.
背景技术Background technique
在临床上尿失禁是常见多发症，常常发生于不同年龄层和性别人群中，尤其以女性和老年人居多。尿失禁会导致会阴部、骶尾部皮炎及压力性溃疡等并发症，不仅会使患者感到不适，还会影响患者的日常生活和心理健康。引发尿失禁的因素很多，其中最主要的因素是尿道括约肌功能缺陷或创伤。为应对尿道括约肌功能障碍而引起的尿失禁问题，现在临床治疗以保守治疗和手术治疗为主。其中，保守治疗包括以激素替代的药物疗法，通过加强盆底肌张力使病症得到减轻或得到纠正的运动疗法，也有通过针灸改善膀胱功能的中医疗法等。但以上疗法只适用于轻度尿失禁患者，对中、重度患者疗效不佳，必须采取手术治疗。但因受患者性别、年龄、体质等各种因素影响，手术治疗效果不明显，而且还会引起身体创伤甚至感染等其他并发症。Urinary incontinence is a common disease in clinical practice, and it often occurs in people of different ages and genders, especially in women and the elderly. Urinary incontinence can lead to complications such as perineal, sacrococcygeal dermatitis, and pressure ulcers, which not only make patients uncomfortable, but also affect their daily life and mental health. There are many factors that trigger urinary incontinence, the most important of which is urethral sphincter dysfunction or trauma. In order to deal with urinary incontinence caused by urethral sphincter dysfunction, the current clinical treatment is mainly conservative treatment and surgical treatment. Among them, conservative treatment includes hormone replacement drug therapy, exercise therapy to relieve or correct symptoms by strengthening pelvic floor muscle tension, and traditional Chinese medicine therapy to improve bladder function through acupuncture and moxibustion. However, the above treatments are only suitable for patients with mild urinary incontinence, and the curative effect is not good for patients with moderate and severe incontinence, and surgical treatment is necessary. However, due to various factors such as the patient's gender, age, and constitution, the effect of surgical treatment is not obvious, and other complications such as physical trauma and even infection may be caused.
对于重度尿失禁患者，采取人工尿道括约肌对尿道自主控制的治疗方式可以重度尿失禁问题得到解决。如申请号为CN202111495237.8的一种体内人工尿道括约肌装置，其特点是结构相对简单，主要分为三个部分，液体控制器，密封连接件，以及锁紧件，没有多余的装置，并且体积相对比较小，手术创伤小。但是此方式控制尿道开闭的程度不一定精准，容易控制过位损伤尿道。同时，此方式控制尿道开闭的一端仍安装在体表外侧，控制方式操作不够便捷且与体表相接部分容易感染发炎。For patients with severe urinary incontinence, the use of artificial urinary sphincter to automatically control the urethra can solve the problem of severe urinary incontinence. For example, an in vivo artificial urethral sphincter device with application number CN202111495237.8 is characterized by a relatively simple structure and is mainly divided into three parts, a liquid controller, a sealing connector, and a locking member, without redundant devices, and the volume It is relatively small and the surgical trauma is small. However, the degree of controlling the opening and closing of the urethra by this method is not necessarily accurate, and it is easy to control the excessive position and damage the urethra. At the same time, the end that controls the opening and closing of the urethra is still installed on the outside of the body surface, the control method is not easy to operate, and the part connected to the body surface is prone to infection and inflammation.
发明内容SUMMARY OF THE INVENTION
本发明为克服上述现有技术中尿道开闭程度控制不精准的问题及尿道开闭的控制端仍安装在体表外侧，控制方式操作不够便捷且与体表相接部分容易感染发炎的问题，提供一种磁流体驱动的自复位式尿道阀装置，通过采用磁流体驱动夹持件挤压尿道的方式实现尿道闭合，符合人体生理结构特征，可行性高。且装置完全安装在体内，感染概率更小，更加安全。The present invention overcomes the problems of inaccurate control of the degree of urethral opening and closing in the prior art and the problems that the control end of urethral opening and closing is still installed on the outside of the body surface, the control mode is not easy to operate and the part connected to the body surface is prone to infection and inflammation, Provided is a magnetic fluid-driven self-resetting urethral valve device, which can achieve urethral closure by using a magnetic fluid-driven clamping piece to squeeze the urethra, which conforms to the characteristics of human physiological structure and is highly feasible. And the device is completely installed in the body, the probability of infection is smaller, and it is safer.
为解决上述问题，本发明采用的技术方案是：一种磁流体驱动的自复位式尿道阀装置，包括壳体、驱动组件与夹持件，驱动组件安装在壳体内并于夹持件相连接，夹持件安装在壳体内并在驱动组件的作用下沿固定方向往复运动。In order to solve the above-mentioned problems, the technical scheme adopted in the present invention is: a magnetic fluid driven self-resetting urethral valve device, comprising a casing, a driving component and a clamping piece, and the driving component is installed in the casing and connected with the clamping piece , the clamping piece is installed in the housing and reciprocates in a fixed direction under the action of the drive assembly.
安装时，装置完全将尿道包裹，夹持件安装在装置壳体内部并与尿道直接接触，夹持件在驱动组件的作用下向靠近尿道方向上进行往复运动，驱动组件安装在壳体内部并与夹持件相连接。驱动组件可采用电池及推杆等其他机械结构；电磁感应装置及电磁铁弹性件等其他机械结构或强磁场与磁流体等方式驱动夹持件。使用时，患者可以在体外对驱动装置进行遥控，进而驱动整个装置工作。During installation, the device completely wraps the urethra, the clamping piece is installed inside the device housing and is in direct contact with the urethra. connected to the clamp. The driving component can use other mechanical structures such as batteries and push rods; other mechanical structures such as electromagnetic induction devices and electromagnet elastic parts, or strong magnetic fields and magnetic fluids to drive the clamping parts. When in use, the patient can remotely control the driving device outside the body, thereby driving the entire device to work.
优选的，驱动组件包括动力部与连接部，动力部为为软磁体，连接部为磁流体部，软磁体安装在壳体内，磁流体部与夹持件相连接。驱动组件采用小型电源作为动力部，连接部采用机械结构时，电池驱动夹持件运动会导致电池电量减少，需进行充电，但是很难在体外对其进行充电，并且此方法要求连接部的机械结构在保证精度和耐久度的同时，还要将连接部的体积做到最小，工艺要求较高。驱动组件采用依靠电磁感应原理制成的动力部和机械结构作为连接部时，无需对体内驱动组件进行充电，但是驱动组件整体结构更加复杂，体积也更大。驱动组件采用软磁体作为动力部，磁流体部作为连接部时，软磁体可以迅速充磁具有强磁场，磁流体部发生形变，软磁体停止充磁后，迅速退磁磁场强度迅速减小，磁流体部恢复形变。通过磁流体部在强磁场内会发生形变的现象，磁流体部与夹持件相连接，驱动夹持件运动，此方法结构简单、精度高、耐久度高、体积小。Preferably, the drive assembly includes a power part and a connection part, the power part is a soft magnet, the connection part is a magnetic fluid part, the soft magnet is installed in the casing, and the magnetic fluid part is connected with the clamping piece. The driving component uses a small power supply as the power part. When the connecting part adopts a mechanical structure, the movement of the battery-driven clamping part will reduce the battery power and need to be charged, but it is difficult to charge it in vitro, and this method requires the mechanical structure of the connecting part. While ensuring accuracy and durability, the volume of the connecting part must be minimized, and the process requirements are high. When the drive assembly adopts the power part and the mechanical structure made by the principle of electromagnetic induction as the connecting part, there is no need to charge the drive assembly in the body, but the overall structure of the drive assembly is more complex and the volume is larger. When the driving component adopts soft magnet as the power part and the magnetic fluid part as the connecting part, the soft magnet can be rapidly magnetized with a strong magnetic field, and the magnetic fluid part is deformed. Part recovery deformation. Through the phenomenon that the magnetic fluid part will deform in a strong magnetic field, the magnetic fluid part is connected with the clamping piece to drive the clamping piece to move. This method has simple structure, high precision, high durability and small volume.
优选的，磁流体部包括弹性薄膜和磁流体，弹性薄膜包裹磁流体，磁流体通过磁场变化发生形变。磁流体部采用弹性薄膜包裹磁流体的方式构成，弹性薄膜可发生较大的形变，具有弹性好、寿命长的优点，磁流体部安装在夹持件上。软磁体没有充磁时，自身磁场较弱，不足以使磁流体受到的力令弹性薄膜发生形变，磁流体部在弹性薄膜自身弹力的作用下，驱动夹持件挤压尿道，尿道闭合。但是，软磁体充磁后，磁场强度迅速增强，使磁流体部在磁场中受到足以发生形变的力，并向软磁体靠近，带动夹持件远离尿道，尿道张开。当停止向软磁体充磁后，软磁体迅速退磁，磁流体部在弹性薄膜自身弹力的作用下，恢复形变，驱动夹持件再次挤压尿道，使尿道再次闭合。Preferably, the magnetic fluid part includes an elastic film and a magnetic fluid, the elastic film wraps the magnetic fluid, and the magnetic fluid is deformed by the change of the magnetic field. The magnetic fluid part is formed by wrapping the magnetic fluid with an elastic film. The elastic film can be greatly deformed, and has the advantages of good elasticity and long service life. The magnetic fluid part is installed on the clamping piece. When the soft magnet is not magnetized, its own magnetic field is weak, which is not enough to deform the elastic film by the force of the magnetic fluid. However, after the soft magnet is magnetized, the magnetic field strength increases rapidly, so that the magnetic fluid part is subjected to sufficient deformation force in the magnetic field, and approaches the soft magnet, driving the clamping piece away from the urethra, and the urethra opens. When the magnetization to the soft magnet is stopped, the soft magnet is rapidly demagnetized, and the magnetic fluid part recovers its deformation under the action of the elastic film itself, and drives the clamping piece to squeeze the urethra again to close the urethra again.
优选的，壳体内部设有分隔部，分隔部将壳体内部分成位于分隔部内部的内腔和位于壳体和分隔部之间的外腔，分隔部上设有导向孔联通内腔和外腔，夹持件穿过导向孔，限制夹持件在磁流体部的驱动下运动时运动方向的多样性，使其只能按照一个方向进行往复运动。Preferably, a partition is provided inside the housing, and the partition divides the interior of the housing into an inner cavity located inside the partition and an outer cavity located between the housing and the partition, and a guide hole is provided on the partition to communicate the inner cavity and the outer cavity The cavity, the clamping piece passes through the guide hole, and restricts the diversity of the movement direction of the clamping piece when it moves under the driving of the magnetic fluid part, so that the clamping piece can only reciprocate in one direction.
优选的，夹持件包括夹持件头部和夹持件尾部，夹持件头部为圆弧形，夹持件尾部为长条形或圆柱形，磁流体部与夹持件尾部连接。夹持件头部为圆弧形，与其他形状相比，圆弧形的夹持件头部挤压尿道时，对尿道的伤害更小，夹持件尾部为长条形或圆柱形，便于与磁流体部相连接。夹持件头部位于内腔，夹持件尾部穿过导向孔，磁流体部位于外腔，防止磁流体部与尿道接触，尿道对磁流体部的约束力不够，会增加磁流体部形变后形状的不确定性。Preferably, the clamp includes a head of the clamp and a tail of the clamp, the head of the clamp is arc-shaped, the tail of the clamp is elongated or cylindrical, and the magnetic fluid part is connected to the tail of the clamp. The head of the clamp is arc-shaped. Compared with other shapes, when the head of the arc-shaped clamp squeezes the urethra, the damage to the urethra is less. The tail of the clamp is elongated or cylindrical, which is convenient for Connected to the magnetic fluid part. The head of the clamp is located in the inner cavity, the tail of the clamp passes through the guide hole, and the magnetic fluid part is located in the outer cavity to prevent the magnetic fluid part from contacting the urethra. shape uncertainty.
优选的，夹持件由非金属材料组成。夹持件整体采用非金属材料而不是金属材料，因为金属材料对磁场具有屏蔽作用，会影响磁流体部根据磁场变化发生形变的准确性。夹持件可以采用陶瓷或塑料等其他非金属材料。Preferably, the holding member is composed of non-metallic materials. The whole clamping piece is made of non-metallic material instead of metal material, because the metal material has a shielding effect on the magnetic field, which will affect the accuracy of the deformation of the magnetic fluid part according to the change of the magnetic field. The clamps can be made of other non-metallic materials such as ceramics or plastics.
优选的，夹持件头部为软质材料。夹持件头部采用软质材料，可以柔性围蔽挤压尿道，将对尿道的损害降到最低。夹持件头部可以采用硅橡胶或塑料等其他软质非金属材料。Preferably, the head of the clip is made of soft material. The head of the clamp is made of soft material, which can flexibly cover and squeeze the urethra, and minimize the damage to the urethra. The head of the holder can be made of other soft non-metallic materials such as silicone rubber or plastic.
优选的，夹持件至少有两个且呈圆周等距分布，磁流体部至少有两个，磁流体部与夹持件尾部串联连接并形成一个闭环。两夹持件头部位于闭环内，用于挤压尿道，使尿道闭合。磁流体部有一个时，磁流体部发生形变或恢复形变带动夹持件在导向孔内运动时沿导向孔旋转，磁流体部至少有两个，位于夹持件尾部两侧，当磁流体部发生形变或恢复形变时，驱动夹持件在导向孔内沿一个固定方向运动。Preferably, there are at least two clamping members and they are distributed at equal distances around the circumference, there are at least two magnetic fluid parts, and the magnetic fluid parts are connected in series with the tail of the clamping member to form a closed loop. The heads of the two clamps are located in the closed loop and are used to squeeze the urethra to close the urethra. When there is one magnetic fluid part, the magnetic fluid part deforms or recovers the deformation and drives the clamping piece to rotate along the guide hole when it moves in the guide hole. There are at least two magnetic fluid parts, located on both sides of the tail of the clamping piece. When the deformation occurs or recovers the deformation, the driving clamp moves in a fixed direction in the guide hole.
优选的，夹持件有四个，分别为第一夹持件、第二夹持件、第三夹持件和第四夹持件，分隔部上有四个导向孔，四个导向孔呈十字排布，磁流体部有四个，分别为第一磁流体部、第二磁流体部、第三磁流体部和第四磁流体部，第一磁流体部与第一夹持件、第二夹持件相连接；第二磁流体部与第二夹持件、第三夹持件相连接；第三磁流体部与第三夹持件、第四夹持件相连接；第四磁流体部与第一夹持件、第四夹持件相连接。当软磁体磁场增强时；四个磁流体部在软磁体产生的磁力作用下向软磁体移动，同时四个磁流体部的弹性薄膜发生变形，磁流体部厚度变小，对四个夹持件产生拉力，受四个磁流体薄膜拉力的影响，四个夹持件同时沿着导向孔向远离尿道方向运动，尿道张开，尿液排出体外。排尿后，软磁体退磁，软磁体自身磁场变弱，四个磁流体部受到的磁力减小，在弹性薄膜回复力的作用下逐渐回复初始形状并对四个夹持件产生推力，夹持件在推力作用下复位，尿道重新被围蔽挤压，尿道闭合。采用四个夹持件对尿道进行夹持，四个夹持件布局呈十字，与采用三个或三个以下夹持件相比，夹持效果更好，连接相邻两个夹持件的磁流体部受力变形幅度不会太大，夹持件受力更加均匀；与采用五个或五个以上夹持件相比，夹持件与磁流体部的数量更少，组装更方便并且不会造成资源浪费。Preferably, there are four clamping members, which are respectively a first clamping member, a second clamping member, a third clamping member and a fourth clamping member, and there are four guide holes on the partition, and the four guide holes are in the shape of a In a cross arrangement, there are four magnetic fluid parts, namely the first magnetic fluid part, the second magnetic fluid part, the third magnetic fluid part and the fourth magnetic fluid part, the first magnetic fluid part The two clamping parts are connected; the second magnetic fluid part is connected with the second clamping part and the third clamping part; the third magnetic fluid part is connected with the third clamping part and the fourth clamping part; the fourth magnetic fluid part is connected with the third clamping part and the fourth clamping part; The fluid part is connected with the first clamping piece and the fourth clamping piece. When the magnetic field of the soft magnet increases, the four ferrofluid parts move toward the soft magnet under the action of the magnetic force generated by the soft magnet, and at the same time, the elastic films of the four ferrofluid parts are deformed, and the thickness of the ferrofluid part becomes smaller. The pulling force is generated, and under the influence of the pulling force of the four magnetic fluid films, the four clamping pieces move along the guide hole in the direction away from the urethra at the same time, the urethra is opened, and the urine is discharged from the body. After urination, the soft magnet is demagnetized, the magnetic field of the soft magnet itself becomes weak, the magnetic force received by the four magnetic fluid parts is reduced, and the initial shape is gradually restored under the action of the elastic film restoring force, and a thrust is generated on the four clamping pieces. Under the action of thrust, the urethra is re-enclosed and squeezed, and the urethra is closed. The urethra is clamped by four clamps, and the four clamps are arranged in a cross. Compared with three or less clamps, the clamping effect is better. The magnitude of the force and deformation of the magnetic fluid part will not be too large, and the force of the clamping part is more uniform; compared with five or more clamping parts, the number of clamping parts and the magnetic fluid part is less, and the assembly is more convenient and No waste of resources.
一种磁流体驱动的自复位式尿道阀系统，包括上述的磁流体驱动的自复位式尿道阀装置和无线遥控端，所述无线遥控端为磁场发生器。无线遥控端可以在人体外部对体内的软磁体进行充磁，使软磁体磁场变强，磁流体部向软磁体移动，带动夹持件后退，尿道张开；当无线遥控端停止对体内的软磁体进行充磁时，软磁体迅速退磁，磁流体部受到的磁力不足以使其向软磁体运动，磁流体部在弹性薄膜回复力的作用下，带动夹持架恢复初始状态，尿道闭合。无线遥控端可以在体外完成整个驱动尿道开闭的过程，无需在体表外侧留下需永久养护的不闭合伤口，防止二次感染发炎。A magnetic fluid-driven self-resetting urethral valve system includes the above-mentioned magnetic fluid-driven self-resetting urethral valve device and a wireless remote control terminal, wherein the wireless remote control terminal is a magnetic field generator. The wireless remote control terminal can magnetize the soft magnetic body in the body outside the human body, so that the magnetic field of the soft magnetic body becomes stronger, the magnetic fluid part moves to the soft magnetic body, drives the clamping piece to retreat, and the urethra opens; When the magnet is magnetized, the soft magnet is rapidly demagnetized, and the magnetic force received by the magnetic fluid part is not enough to make it move toward the soft magnet. The wireless remote control terminal can complete the entire process of driving the urethra to open and close in vitro, without leaving an unclosed wound on the outside of the body that needs permanent maintenance to prevent secondary infection and inflammation.
与现有技术相比，本发明的有益效果是：本发明为采用一种磁流体驱动的自复位式尿道阀装置，利用磁流体部在磁场作用下的变形效应，可以在体外通过控制端遥控尿道的开启和闭合，不同于利用液体驱动开启尿道口，采用体表端控制开闭，控制便捷，效率高，无需在体表外侧留下需永久养护的不闭合伤口，防止二次感染发炎；尿道不开孔安装器件，不致造成创口肌肉组织感染；装置各元件与尿液不接触，不致引起泌尿系统感染及并发症；以软质非金属材料垫片与尿道外壁接触，不致造成器官机械损伤；利用尿道管内壁的闭合实现密封，符合生理结构特点，不致引起漏尿。Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts a magnetic fluid driven self-resetting urethral valve device, which utilizes the deformation effect of the magnetic fluid part under the action of a magnetic field, and can be remotely controlled in vitro through the control terminal. The opening and closing of the urethra is different from using liquid to drive the opening and closing of the urethra. The surface end is used to control the opening and closing, which is convenient and efficient, and there is no need to leave an unclosed wound on the outside of the body surface that needs permanent maintenance to prevent secondary infection and inflammation; The device is installed without opening the urethra, which will not cause wound muscle tissue infection; the components of the device will not be in contact with urine, which will not cause urinary tract infection and complications; the soft non-metallic material gasket is used to contact the outer wall of the urethra, which will not cause mechanical damage to organs ;Using the closure of the inner wall of the urethra to achieve sealing, which conforms to the characteristics of physiological structure and will not cause urine leakage.
附图说明Description of drawings
图1是本发明的一种磁流体驱动的自复位式尿道阀装置尿道闭合的结构示意图。FIG. 1 is a schematic structural diagram of the urethral closure of a magnetic fluid driven self-resetting urethral valve device of the present invention.
图2是本发明的一种磁流体驱动的自复位式尿道阀装置尿道张开的结构示意图。FIG. 2 is a schematic structural diagram of the urethral opening of a magnetic fluid driven self-resetting urethral valve device of the present invention.
图3是本发明的壳体的结构示意图。FIG. 3 is a schematic structural diagram of the housing of the present invention.
图4是本发明的夹持件的结构示意图.Figure 4 is a schematic view of the structure of the clamp of the present invention.
图5是本发明的一种磁流体驱动的自复位式尿道阀系统尿道张开的结构示意图。5 is a schematic structural diagram of the urethral opening of a magnetic fluid driven self-resetting urethral valve system of the present invention.
具体实施方式Detailed ways
附图仅用于示例性说明，不能理解为对本专利的限制；为了更好说明本实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对于本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。附图中描述位置关系仅用于示例性说明，不能理解为对本专利的限制。The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable to the artisan that certain well-known structures and descriptions thereof may be omitted from the drawings. The positional relationships described in the drawings are only for exemplary illustration, and should not be construed as a limitation on the present patent.
本发明实施例的附图中相同或相似的标号对应相同或相似的部件；在本发明的描述中，需要理解的是，若有术语“上”、“下”、“左”、“右”“长”“短”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此附图中描述位置关系的用语仅用于示例性说明，不能理解为对本专利的限制，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms “upper”, “lower”, “left” and “right” The orientation or positional relationship indicated by "long" and "short" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, structure and operation in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on this patent. The specific meanings of the above terms.
下面通过具体实施例，并结合附图，对本发明的技术方案作进一步的具体描述：Below by specific embodiment, and in conjunction with accompanying drawing, the technical scheme of the present invention is further described in detail:
实施例1Example 1
如图1-3所示为一种磁流体驱动的自复位式尿道阀装置的实施例，包括壳体1、驱动组件与夹持件2，驱动组件安装在壳体1内并于夹持件2相连接，夹持件2安装在壳体1内可沿固定方向往复运动。安装时，装置完全包裹在尿道外侧，夹持件2安装在装置壳体1内部并与尿道直接接触，夹持件2可在靠近尿道方向上进行往复运动，驱动件安装在壳体1内部并与夹持件2相连接，用以驱动夹持件2向尿道方向运动挤压尿道辅助尿道闭合或驱动夹持件向背离尿道方向运动张弛尿道。使用时，患者可以在体外对驱动装置进行遥控，进而驱动整个装置工作。As shown in Figures 1-3, an embodiment of a magnetic fluid driven self-resetting urethral valve device includes a
具体的，驱动组件包括动力部与连接部，动力部为软磁体3，连接部为磁流体部4，软磁体3安装在壳体1内，磁流体部4与夹持件2相连接。驱动组件采用软磁体3作为动力部，磁流体部4作为连接部，软磁体3可以迅速充磁具有强磁场，通过磁流体部4在强磁场内会发生形变的现象，将磁流体部4与夹持件2相连接，磁流体部4驱动夹持件2运动，软磁体3停止充磁后，迅速退磁，磁场强度迅速减小，磁流体部4恢复形变，带动夹持件2复位。Specifically, the drive assembly includes a power part and a connection part, the power part is a
其中，磁流体部4包括弹性薄膜和磁流体，弹性薄膜包裹磁流体，磁流体通过磁场变化发生形变。磁流体部4采用弹性薄膜包裹磁流体的方式构成，磁流体部4安装在夹持件2上。软磁体3没有充磁时，自身磁场较弱，不足以使磁流体受到的力令弹性薄膜发生形变，磁流体部4在弹性薄膜自身弹力的作用下，驱动夹持件2挤压尿道，尿道闭合。但是，软磁体3充磁后，磁场强度迅速增强，使磁流体部4在磁场中受到足以发生形变的力，并向软磁体3靠近，带动夹持件2远离尿道，尿道张开。当停止向软磁体3充磁后，软磁体3迅速退磁，磁流体部4在弹性薄膜自身弹力的作用下，恢复形变，驱动夹持件2再次挤压尿道，使尿道再次闭合。The magnetic
进一步的，壳体1内部设有分隔部5，分隔部5将壳体1内部分成位于分隔部5内部的内腔6和位于壳体1和分隔部5之间的外腔7，分隔部5上设有导向孔8联通内腔6和外腔7，夹持件2穿过导向孔8，使其只能按照一个方向进行往复运动，从而精准的挤压尿道。Further, a
本实施例的工作原理或工作流程：本发明采用磁流体部4在磁场作用下形变的原理，通过对体内作用端壳体1内软磁体3进行充磁，充磁后的软磁体3磁场强度增大，使与夹持件2连接的磁流体部4在磁场内受力发生形变靠近软磁体3，从而带动穿过分隔部5上导向孔8的夹持件2向远离尿道方向移动，夹持件停止挤压尿道，尿道张开患者进行排尿。排尿后，停止对软磁体3充磁，软磁体3迅速退磁，退磁后的软磁体3不足以让磁流体部4发生形变向软磁体3移动，磁流体部4在自身弹性薄膜回复力的作用下推动夹持件2复位，使夹持件2重新挤压尿道，尿道闭合。The working principle or working process of the present embodiment: the present invention adopts the principle that the magnetic
本实施例的有益效果：利用磁流体部在磁场作用下的变形效应在体外通过控制端遥控尿道的开启和闭合，控制便捷，效率高，无需在体表外侧留下需永久养护的不闭合伤口，防止二次感染发炎；尿道不开孔安装器件，不致造成创口肌肉组织感染；装置各元件与尿液不接触，不致引起泌尿系统感染及并发症；以软质非金属材料与尿道外壁接触，不致造成器官机械损伤；利用尿道管内壁的闭合实现密封，符合生理结构特点，不致引起漏尿。Beneficial effects of this embodiment: using the deformation effect of the magnetic fluid part under the action of a magnetic field to remotely control the opening and closing of the urethra through the control end in vitro, the control is convenient, the efficiency is high, and there is no need to leave an open wound that needs permanent maintenance on the outside of the body surface. , to prevent secondary infection and inflammation; the device is installed without opening the urethra, so as not to cause wound muscle tissue infection; the components of the device are not in contact with urine, so as not to cause urinary tract infection and complications; soft non-metallic materials are used to contact the outer wall of the urethra, It will not cause mechanical damage to organs; the sealing is realized by the closure of the inner wall of the urethra, which conforms to the characteristics of physiological structure and will not cause urine leakage.
实施例2Example 2
一种磁流体驱动的自复位式尿道阀装置的实施例2，在实施例1的基础上，如图4所示，对夹持件2的形状与材质进一步限定。
具体的，夹持件2包括夹持件头部9和夹持件尾部10，夹持件头部9为圆弧形，夹持件尾部10为长条形或圆柱形，磁流体部4与夹持件尾部10连接。夹持件头部9为圆弧形，夹持件尾部10为长条形或圆柱形。夹持件头部9位于内腔6，夹持件尾部10穿过导向孔8，磁流体部4位于外腔7。Specifically, the
更进一步的，夹持件由非金属材料组成，夹持件头部为软质非金属材料。Further, the clamping piece is made of non-metallic material, and the head of the clamping piece is made of soft non-metallic material.
本实施例的工作原理或工作流程：对夹持件2的形状和材质做进一步限定，使其作用效果更好。The working principle or working flow of the present embodiment: the shape and material of the clamping
本实施例的有益效果：夹持件头部9为圆弧形，挤压尿道时对尿道伤害更小；夹持件尾部10为长条形或圆柱形，便于与磁流体部4相连接，磁流体部4位于外腔7不与尿道直接接触，防止尿道对磁流体部4的约束力不够，增加磁流体部4形变后形状的不确定性；夹持件2采用非金属材料，因为金属材料对磁场具有屏蔽作用，会影响磁流体部4根据磁场变化发生形变的准确性；夹持件头部9采用软质材料，可以柔性围蔽挤压尿道，将对尿道的损害降到最低。The beneficial effects of the present embodiment: the
实施例3Example 3
一种磁流体驱动的自复位式尿道阀装置的实施例3，在实施例1或2的基础上，如图1-2所示，对壳体1内的分隔部5上导向孔8的数量与位置及夹持件2与磁流体部4的数量进一步限定。
具体的，夹持件2有四个，分别为第一夹持件201、第二夹持件202、第三夹持件203和第四夹持件204，分隔部5上有四个导向孔8，四个导向孔8呈十字排布，磁流体部4有四个，分别为第一磁流体部401、第二磁流体部402、第三磁流体部403和第四磁流体部404。第一磁流体部401与第一夹持件201、第二夹持件202相连接；第二磁流体部402与第二夹持件202、第三夹持件203相连接；第三磁流体部403与第三夹持件203、第四夹持件204相连接；第四磁流体部404与第一夹持件201、第四夹持件204相连接。当软磁体3磁场增强时；第一磁流体部401、第二磁流体部402、第三磁流体部403和第四磁流体部404在软磁体3产生的磁场作用下向软磁体3移动，同时第一磁流体部401、第二磁流体部402、第三磁流体部403和第四磁流体部404的弹性薄膜发生变形，磁流体部厚度变小，对第一夹持件201、第二夹持件202、第三夹持件203和第四夹持件204产生拉力，受拉力影响，第一夹持件201、第二夹持件202、第三夹持件203和第四夹持件204同时沿着导向孔8向远离尿道方向运动，尿道张开，尿液排出体外。排尿后，软磁体3退磁，软磁体3自身磁场变弱，第一磁流体部401、第二磁流体部402、第三磁流体部403和第四磁流体部404受到的磁力减小，在弹性薄膜回复力的作用下逐渐回复初始形状并带动第一夹持件201、第二夹持件202、第三夹持件203和第四夹持件204复位，尿道重新被围蔽挤压，尿道闭合。Specifically, there are four clamping
本实施例的工作原理或工作流程：在实施例1的基础上对壳体1内的分隔部5上导向孔8的数量与位置进一步限定，对夹持件2与磁流体部4的数量进一步限定。The working principle or working process of this embodiment: on the basis of
本实施例的有益效果：采用四个夹持件2对尿道进行夹持，四个夹持件2布局呈十字，夹持效果更好，连接相邻两个夹持件2的磁流体部4受力变形幅度不会太大，夹持件2受力更加均匀；夹持件2与磁流体部4的数量最优，组装方便且不会造成资源浪费。The beneficial effects of this embodiment: four clamping
实施例4Example 4
一种磁流体驱动的自复位式尿道阀系统的实施例，在实施例1、实施例2和实施例3的基础上，如图5所示，包括上述任一实施例的磁流体驱动的自复位式尿道阀装置和无线遥控端11，无线遥控端11为磁场发生器。无线遥控端11可以在人体外部对体内的磁流体驱动的自复位式尿道阀装置中的软磁体3进行充磁，使软磁体3磁场变强，磁流体部4向软磁体3移动，带动夹持件2后退，尿道张开；当无线遥控端11停止对软磁体3充磁时，软磁体3迅速退磁，磁流体部4受到的磁力不足以使其向软磁体3运动，磁流体部4在弹性薄膜回复力的作用下，带动夹持件2恢复初始状态，尿道闭合。An embodiment of a magnetic fluid-driven self-resetting urethral valve system, on the basis of
本实施例的工作原理或工作流程：采用无线遥控端11实现在体外遥控磁流体驱动的自复位式尿道阀装置内的软磁体3进行充磁或停止充磁。The working principle or working process of this embodiment: the wireless
本实施例的有益效果：无线遥控端11可以在体外完成对体内磁流体驱动的自复位式尿道阀装置中的软磁体3进行充磁或停止充磁，进而使尿道完成开启或闭合，无需将控制端固定在体表外侧，留下需永久养护的不闭合伤口，防止二次感染发炎。The beneficial effects of this embodiment: the wireless
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。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子以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.
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