CN108366852A - 流动控制阀门 - Google Patents
流动控制阀门 Download PDFInfo
- Publication number
- CN108366852A CN108366852A CN201680074931.3A CN201680074931A CN108366852A CN 108366852 A CN108366852 A CN 108366852A CN 201680074931 A CN201680074931 A CN 201680074931A CN 108366852 A CN108366852 A CN 108366852A
- Authority
- CN
- China
- Prior art keywords
- valve
- shell
- component
- wall
- tubular
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
- A61F2/0022—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse placed deep in the body opening
-
- 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
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2475—Venous valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
-
- 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
- A61F2/0031—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra
- A61F2/0036—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra implantable
- A61F2/004—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra implantable inflatable
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/064—Blood vessels with special features to facilitate anastomotic coupling
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
- A61M1/3655—Arterio-venous shunts or fistulae
-
- 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
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/227—Valves actuated by a secondary fluid, e.g. hydraulically or pneumatically actuated valves
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/48—Operating or control means, e.g. from outside the body, control of sphincters
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/009—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof magnetic
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0018—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in elasticity, stiffness or compressibility
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Urology & Nephrology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Surgery (AREA)
- Otolaryngology (AREA)
- Ophthalmology & Optometry (AREA)
- Gastroenterology & Hepatology (AREA)
- Reproductive Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- External Artificial Organs (AREA)
- Prostheses (AREA)
Abstract
描述了一种可植入可控流体流动阀门结构,用于定位在诸如静脉或动脉之类的解剖管内或者静脉与动脉中的壁部的孔之间。该结构具有相对刚性的管状外壳1,在该外壳内具有管状弹性圆柱形构件2,其中,圆柱形构件2的端部附接到管状外壳1的内壁。例如可以通过在压力下将流体8抽入其中,来增大外壳壁部与弹性圆柱形构件之间的空间,这会引起弹性圆柱形构件2扩张,从而减小阀门的流动横截面。可以使用机械装置来影响该扩张。阀门结构对于用作对通过手术造成的动静脉内瘘的流动进行控制的阀门特别有用,并且还可以用作人造括约肌。
Description
本发明涉及液体流动控制阀门,该液体流动控制阀门特别是用于植入人或动物的解剖管,以控制流过管或两个解剖管之间的液体流量,特别是控制流过动静脉瘘的血液流量。
对流过解剖管的流量进行控制的标准方法是在管的附近或周围放置一机构,该机构可被控制以挤压管,从而限制流过该管的流量。在以下公布的专利说明书中公开有此类设备的示例:
WO 86/01395
US 4408597
WO 88/05290
EP 2815720
US 2005/0250979
US 4708140
US 2011/0306824
US 2004/0138684
US 2012/0095288
US 2011/0071341
WO 99/63907
WO 01/49245
WO 01/10359
此类设备较为复杂、不易安装或操作,并且占空间。
US 2015/0305746A1公开了一种用于改变连接在静脉与动脉之间的管中的血流的布置结构。该管包含两个阀门,每个阀门都有一个可充气的气囊,当充气时,该气囊限制管中的血流。该布置结构较为复杂,并且该说明书中公开的阀门容易在阀门自身的区域或相关的可植入移植物中产生严重的血液凝结的风险。
根据本发明,提供一种可植入的可控流体流动阀门结构,包括:相对刚性的管状的壳体,所述壳体具有适于定位在解剖管腔内的直径,在所述壳体内固定有管状弹性的圆柱形构件,所述圆柱形构件的端部在两个或多个轴向间隔的位置处固定到管状壳体的内壁;用于扩张弹性构件的装置,以使所述弹性构件的在两个轴向间隔的位置之间的部分径向向内移动,从而限制流过阀门结构的轴向液体流量,其中,在所述两个轴向间隔的位置,所述弹性构件附接到相对刚性的管状构件;以及用于将阀门结构附接在解剖管内或附接到形成于两个解剖管的壁部中的孔的装置。
在第一优选实施例中,可以通过增加圆柱形弹性构件的外壁与管状壳体的内壁之间的液压流体中的压力,来实现弹性圆柱形构件的移动。在替代例中,弹性构件的外壁与相对刚性的管状壳体的内壁之间的环形空间可以具有穿过该环形空间的一条或多条绳,其中,增加绳上的张力会引起弹性构件的一部分以远离壳体内壁的方式向内扩张,从而减小穿过阀门结构的流动通道的尺寸。张力缓解允许弹性构件弹回,从而增大流动通道的横截面。在另一替代例中,阀门可以由泵和储能器布置结构致动。
在任一种情况下,在相对刚性的管状壳体的壁部中存在孔,液压流体可以通过该孔进入或排出相对刚性的外部管状壳体与弹性管状构件之间的空间,或者一条或多条绳或线材可以穿过该孔,可以拉动绳或线材,使弹性构件的部分以远离相对刚性的管状构件的壁部的方式移动,从而减小流动通道的尺寸,或者允许通道在张力释放时由于内部管状构件的弹性特性而再次打开。
当阀门为液压操作或由一条或多条绳来实现移动的鲍登线型布置时,使用简单的柱塞机构来实现阀门的致动。
在任一种情况下,可以借助于螺纹机构方便地调节阀门的关闭范围、即流过该阀门的轴向流路的限制范围。转动固定到圆柱体中的螺纹柱塞的可旋转盘,可以对阀门的打开或关闭程度进行微调,其中,上述圆柱体填充有液压流体并连接到外壳与圆柱形弹性构件之间的空间。
在要使用阀门来控制液体流过诸如静脉或动脉之类的管状解剖通道,或者流过动静脉瘘的情况下,整个阀门及其致动机构可以设计成可皮下植入,其中,刚提到的可旋转盘通过磁性装置能够相对于某种形式的壳体移动。在特别优选的实施例中,具有磁化扇区的盘位于具有相对平坦表面的壳体,该平坦表面位于人或动物的皮肤下方,其中,盘的旋转引起螺纹构件相对于壳体中的盘轴向移动,以降低或减小壳体内的液压流体中的压力,或者移动一条或多条绳来实现期望的开阀或闭阀效果。
根据本发明的阀门可以由各种材料制成,并且在多种尺度上适用于预期目的。对于期望控制流过解剖管状血管的流体流动的医疗目的,整个单元可以由形成覆盖物的适当生物相容性聚合物材料制成,其中,弹性圆柱形构件同样由生物相容性弹性聚合物材料制成。
相对刚性的外部支承管的横截面可以是圆形,或着例如卵形或椭圆形。与弹性圆柱形构件的连接或合并处的端部进入外部支承管的壁部的轮廓一样,支承管的形状、以及未扩张和扩张后的弹性圆柱形构件的形状应当选择成使流过阀门的液体中的湍流最小化。
支承管和弹性圆柱形构件的轴向范围可以宽幅变化。弹性圆柱形构件的长度与直径之比优选在0.5与2.5之间。支承管的直径将取决于该支承管所插入的解剖管,为了用于动脉或静脉,或者用于肱动脉与头静脉之间的动静脉瘘(为肾病患者准备透析的标准),通常适合为4至5mm的直径。
根据本发明的阀门基本上与解剖括约肌类似地起作用,但是通常情况下打开以使流体流过该阀门,并在需要时关闭,而不是在人或动物体中的括约肌阀门的通常操作,上述括约肌阀门通常情况下关闭,然后由相应动物或人自愿或非自愿的指令通过适当的肌肉组织打开。根据本发明的阀门可以用作人体任何部位的人造括约肌,例如尿道括约肌、回肠括约肌以及肛门括约肌。通过适当设计,这些阀门可用于控制体液以外的物质流动,在宽幅的粘性范围内,既可用于简单液体或流体,也可用于诸如液体或气体介质中的悬浮固体之类的其他可流动混合物。
在提供可用于对流过动静脉瘘的血液流动进行控制的简单阀门中,根据本发明的阀门具有特别的价值。WO 2015/135955A2中公开了使用阀门来控制流过动静脉瘘的血流。然而,其中所述的盘或瓣阀门构造在使用中可能由于沉积物的积聚而容易发生故障。当弹性圆柱形构件基本靠近相对刚性的管状构件的壁部时的完全打开的条件下;以及当阀门关闭或流路受到例如由上述液压或机械机构产生的外部径向向内的力限制时,根据本发明的阀门都提供了更平滑许多的流动模式。
使用根据本发明的阀门对流过动静脉瘘的血流进行控制的特别的优点是,流速可以被医师或诸如护士之类的其他医疗操作者调节到适合患者所需的流量,例如以上提到的国际公布中更详细所述的正在进行血液透析的患者。
参照附图,以示例的方式对本发明进行说明,其中:
图1是根据本发明的阀门和用于致动该阀门的装置的示意示图;
图2是对流过阀门的不同流速的可能性进行说明的图;
图3是根据本发明的可植入动静脉瘘阀门的示意立体图;
图4是图3所示的阀门的主视图;
图5示出液压调节阀门的操作模式;
图6示出线调节阀门的操作模式;
图7示意地示出在手术植入之后图3和图4所示的阀门的安装;
图8示出阀门如何附接到动脉或静脉壁部;
图9和图10是对流过患者手腕中的动静脉瘘的流动进行控制的阀门的安装的示意图;
图11是根据本发明的阀门在连接于静脉与动脉之间的管中使用的示意示图。
在附图中,所有尺寸均以毫米为单位。
参照附图,这些附图示出根据本发明的阀门结构,其构造成用于对流过动静脉瘘的流动进行控制的阀门。阀门结构自身具有外部相对刚性的管状壳体1,并且在该阀门结构的内部放置有圆筒形弹性膜2,膜2的端部的圆形边缘以流体密封的方式附接到构件1的内壁。如图所示,阀门结构的形状稍呈椭圆形而非圆形。阀门用于通过致动单元4经由连接构件3来控制流体流动。
致动单元4包括壳体,该壳体具有由外壁10限定的大致圆筒形部分,并且在壁10的圆筒形部分内放置有活塞或推力构件9。通过具有从一侧突出的螺纹柱的盘11的旋转,来控制活塞或推力构件9的位置。如图5和图6所示,转动盘11使活塞或推力构件9向左或向右移动。如图2的右侧部分所示,通过移动活塞,膜2可相对于壳体1径向扩张,以减小穿过阀门结构的流动通道,或者增加流动横截面,例如图2左侧所示的流动横截面。
其带有螺纹柱的盘11的旋转是借助于图2中示意性地表示为21的把手来实现的,该把手具有圆形横截面,并且在其前端置入有一组磁体22。这些磁体与置入可旋转盘1的1一组磁体14协作,使得若把手21放置成与位于致动单元4的壳体中的盘11相邻,并且如图1中的双头箭头23所示地旋转,则带有其螺纹柱的盘11旋转,从而根据把手21顺时针或逆时针转动而将活塞或推力构件9向左或向右移动。
在附图中示出了两个实施例,阀门的开度在一个实施例中由液压控制,在另一个实施例中由机械线构造控制。
这些实施例中的第一实施例在图5中示意性地示出,其中,连接构件3是填充有液体8的管,该液体8填充整个管3、弹性膜2与外壳1之间的空间、以及致动头4的大致圆筒形腔室。从图5中可以看出,盘11旋转使得活塞9向左移动而促使膜2扩张,从而使穿过阀门结构的通道变窄。如图5的左侧所示,将活塞9向右移动允许膜2松弛并位于相对刚性的外部构件1的壁部附近。液体8应当是可生物相容的,使得任何泄漏都无有害影响,该液体8例如为人造血液或血浆。
图6示出了替代构造,在该替代构造中,构件9为推力构件,并连接到穿过连接管3的线材或绳14。线材或绳14的远端在16处连接到相对刚性的外部构件1的内壁,该相对刚性的外部构件1自身形成阀门结构的一部分。如图6的右侧所示,当推力构件9被拉到尽可能靠右的位置时,线材或绳14处于绷紧状态,从而使膜2扩张以减小流过阀门的流量。如图6的左侧所示,若推力构件9向左移动,则阀门打开以使流过该阀门的流体流量最大化。
如上所述,示意地示出的阀门对于控制流过图7所示的动脉17与静脉18之间手术形成的动静脉瘘的血液流动较为有用。在相对刚性的壳体的端部上具有凸缘5、6,若凸缘5、6由适当的材料制成,则凸缘5、6可以直接缝合在形成于动脉或静脉壁中的孔周围,否则,如图8的右侧所示,经由凸缘5、6中的一组孔部19缝合在形成于动脉或静脉壁中的孔周围。
如以上提到的国际公布所述,在手术中用于提供肾透析目的的动静脉瘘的优选位置在患者的手腕中。图9和图10示出可以如何安装单元。致动头4位于皮肤下方,并且可以使用图1所示的工具21使该致动头4内的盘旋转。在该图中,皮肤由阴影壁20示意性地示出。
图11示出了一种具有特别的价值的替代方法,在该替代方法中,需要在动脉与静脉之间提供血流,但不需要在手术期间在动脉与静脉之间建立连接而从其通常的解剖位置重新定位。如图示意所示,标记为30的本发明的阀门与管31配合,该管在其端部33处以标准的方式绕静脉V或动脉A的壁中的孔的周边缝合。阀门30的致动是通过如上所述的机构32来进行的。
Claims (11)
1.一种可植入的可控流体流动阀门结构,其特征在于,包括:相对刚性的管状的壳体,所述壳体具有适于定位在解剖管的腔内的直径,在所述壳体内固定有管状弹性的圆筒形构件,所述圆筒形构件的端部在两个或多个轴向间隔的位置处固定到管状壳体的内壁;用于扩张弹性构件的装置,所述装置使所述弹性构件的在附连到所述相对刚生的管状构件的两个轴向间隔的位置之间的部分径向向内移动,从而限制流过阀门结构的轴向液体流动;以及用于将阀门结构附接在解剖管内或附接到形成于两个解剖管的壁部中的孔的装置。
2.如权利要求1所述的阀门结构,其特征在于,通过增加圆筒形弹性构件的外壁与管状壳体的内壁之间的液压流体中的压力,来实现弹性圆筒形构件的移动。
3.如权利要求1所述的阀门结构,其特征在于,弹性构件的外壁与相对刚性的管状壳体的内壁之间的环形空间具有:穿过该环形空间的一条或多条绳;以及设置成增加绳上的张力的装置,以引起弹性构件的一部分以远离壳体的内壁的方式向内扩张,从而减小穿过所述阀门结构的流动通道的尺寸。
4.如权利要求2或3中任一项所述的阀门结构,其特征在于,包括位于相对刚性的管状壳体的壁部中的孔,液压流体能够通过所述孔进入或排出相对刚性的外部管状壳体与弹性管状构件之间的空间,或者一条或多条绳能够穿过该孔,能够拉动所述新嫁娘,使弹性构件的部分以远离相对刚性的管状构件的壁部的方式移动,从而减小流动通道的尺寸,或者允许通道在张力释放时由于内部管状构件的弹性特性而再次打开。
5.一种阀门和致动器组件,其特征在于,当阀门为液压操作或由一条或多条绳来实现移动的鲍登线型布置结构时,所述阀门和致动器组件包括权利要求1至4中任一项所述的阀门结构和柱塞机构。
6.如权利要求5所述的组件,其特征在于,借助于螺纹机构来调节流过阀门的轴向流路的限制范围。
7.如权利要求6所述的组件,其特征在于,所述螺纹机构包括能够对阀门的打开或关闭程度进行微调的柱塞。
8.如权利要求5至7中任一项所述的组件,其特征在于,适于控制流过管状解剖通道的液体流动。
9.如权利要求8所述的组件,其特征在于,整个阀门结构及其致动机构能够皮下植入,并且螺纹机构能够通过磁性装置移动。
10.如权利要求9所述的组件,其特征在于,包括具有磁化扇区的可旋转盘,所述可旋转盘位于具有相对平坦表面的壳体国,其中,所述盘的旋转引起螺纹构件相对于壳体中的所述盘轴向移动,以降低或减小壳体内的液压流体中的压力,或者移动一条或多条绳来实现期望的开阀或闭阀效果。
11.如权利要求5至10中任一项所述的组件,其特征在于,包括生物相容性聚合物材料的覆盖物,其中,弹性圆筒形构件也由生物相容性弹性聚合物材料制成。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1522521.2 | 2015-12-21 | ||
GB1522521.2A GB2545667A (en) | 2015-12-21 | 2015-12-21 | Flow control valves |
PCT/EP2016/082274 WO2017109016A1 (en) | 2015-12-21 | 2016-12-21 | Flow control valves |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108366852A true CN108366852A (zh) | 2018-08-03 |
Family
ID=55311341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201680074931.3A Pending CN108366852A (zh) | 2015-12-21 | 2016-12-21 | 流动控制阀门 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20180360606A1 (zh) |
EP (1) | EP3393399A1 (zh) |
JP (1) | JP2019500961A (zh) |
CN (1) | CN108366852A (zh) |
GB (1) | GB2545667A (zh) |
WO (1) | WO2017109016A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020253402A1 (zh) * | 2019-06-18 | 2020-12-24 | 上海氪励铵勤科技发展有限公司 | 植入式控尿结构 |
CN113365576A (zh) * | 2019-02-01 | 2021-09-07 | W.L.戈尔及同仁股份有限公司 | 远程可调节机构以及相关系统和方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2032601B1 (en) * | 2022-07-26 | 2024-02-05 | Academisch Ziekenhuis Leiden | Arteriovenous graft system |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4256094A (en) * | 1979-06-18 | 1981-03-17 | Kapp John P | Arterial pressure control system |
EP1396243A1 (fr) * | 2002-09-04 | 2004-03-10 | Endoart S.A. | Anneau chirurgical pourvu d'un système de commande à distance et réversible de la variation de son diamètre |
US20070276342A1 (en) * | 2006-03-28 | 2007-11-29 | Bryant Lin | Devices and related methods for treating incontinence |
US20090030498A1 (en) * | 2007-05-29 | 2009-01-29 | Creativasc Medical | Arteriovenous Access Valve System and Process |
CN101518476A (zh) * | 2008-02-26 | 2009-09-02 | 伊西康内外科公司 | 可调节限制装置中的压力控制 |
CN103298426A (zh) * | 2011-01-18 | 2013-09-11 | Gt泌尿学公司 | 导管闭合装置和闭合导管的方法 |
WO2014140282A1 (en) * | 2013-03-15 | 2014-09-18 | Milux Holding S.A. | Operable implant comprising an electrical motor and a gear system |
CN104324430A (zh) * | 2014-11-21 | 2015-02-04 | 宋会中 | 一种血液透析用血流量调节器 |
CN104379071A (zh) * | 2012-03-26 | 2015-02-25 | 医疗创新开发公司 | 可调血管环、用于治疗sfs综合症的装置和包括所述环的可植入工具以及用于获得所述环的模具以及方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4408597A (en) * | 1982-04-23 | 1983-10-11 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Prosthetic occlusive device for an internal passageway |
AU592772B2 (en) * | 1984-09-05 | 1990-01-25 | Vaso Products Australia Pty. Limited | Control of blood flow |
US4708140A (en) * | 1986-05-08 | 1987-11-24 | Baron Howard C | Atraumatic vascular balloon clamp |
WO1988005290A1 (en) * | 1987-01-16 | 1988-07-28 | Vaso Products Australia Pty. Limited | Control of blood flow to the liver |
US6074341A (en) * | 1998-06-09 | 2000-06-13 | Timm Medical Technologies, Inc. | Vessel occlusive apparatus and method |
FR2797181B1 (fr) * | 1999-08-05 | 2002-05-03 | Richard Cancel | Dispositif telecommande de bande gastrique pour former une ouverture restreinte de stoma dans l'estomac |
US6470892B1 (en) * | 2000-02-10 | 2002-10-29 | Obtech Medical Ag | Mechanical heartburn and reflux treatment |
US7338433B2 (en) * | 2002-08-13 | 2008-03-04 | Allergan, Inc. | Remotely adjustable gastric banding method |
TW200501913A (en) * | 2003-01-15 | 2005-01-16 | Univ Miami | Venous anti-reflux implant |
CA2592857A1 (en) * | 2007-06-28 | 2008-12-28 | Antoine Trubiano | Urethra pressure control valve to control incontinence |
US8672830B2 (en) * | 2009-09-18 | 2014-03-18 | Ethicon Endo-Surgery, Inc. | Implantable restriction system with release mechanism |
US20120095288A1 (en) * | 2010-04-29 | 2012-04-19 | Allergan, Inc. | Self-adjusting gastric band |
US8517915B2 (en) * | 2010-06-10 | 2013-08-27 | Allergan, Inc. | Remotely adjustable gastric banding system |
US9486301B2 (en) * | 2013-06-21 | 2016-11-08 | Coloplast A/S | Artificial urinary sphincter system having a cuff with an inflatable balloon attached to a frame |
-
2015
- 2015-12-21 GB GB1522521.2A patent/GB2545667A/en not_active Withdrawn
-
2016
- 2016-12-21 US US16/063,352 patent/US20180360606A1/en not_active Abandoned
- 2016-12-21 EP EP16826728.4A patent/EP3393399A1/en not_active Withdrawn
- 2016-12-21 JP JP2018532637A patent/JP2019500961A/ja active Pending
- 2016-12-21 CN CN201680074931.3A patent/CN108366852A/zh active Pending
- 2016-12-21 WO PCT/EP2016/082274 patent/WO2017109016A1/en active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4256094A (en) * | 1979-06-18 | 1981-03-17 | Kapp John P | Arterial pressure control system |
EP1396243A1 (fr) * | 2002-09-04 | 2004-03-10 | Endoart S.A. | Anneau chirurgical pourvu d'un système de commande à distance et réversible de la variation de son diamètre |
US20070276342A1 (en) * | 2006-03-28 | 2007-11-29 | Bryant Lin | Devices and related methods for treating incontinence |
US20090030498A1 (en) * | 2007-05-29 | 2009-01-29 | Creativasc Medical | Arteriovenous Access Valve System and Process |
CN101518476A (zh) * | 2008-02-26 | 2009-09-02 | 伊西康内外科公司 | 可调节限制装置中的压力控制 |
CN103298426A (zh) * | 2011-01-18 | 2013-09-11 | Gt泌尿学公司 | 导管闭合装置和闭合导管的方法 |
CN104379071A (zh) * | 2012-03-26 | 2015-02-25 | 医疗创新开发公司 | 可调血管环、用于治疗sfs综合症的装置和包括所述环的可植入工具以及用于获得所述环的模具以及方法 |
WO2014140282A1 (en) * | 2013-03-15 | 2014-09-18 | Milux Holding S.A. | Operable implant comprising an electrical motor and a gear system |
CN104324430A (zh) * | 2014-11-21 | 2015-02-04 | 宋会中 | 一种血液透析用血流量调节器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113365576A (zh) * | 2019-02-01 | 2021-09-07 | W.L.戈尔及同仁股份有限公司 | 远程可调节机构以及相关系统和方法 |
WO2020253402A1 (zh) * | 2019-06-18 | 2020-12-24 | 上海氪励铵勤科技发展有限公司 | 植入式控尿结构 |
Also Published As
Publication number | Publication date |
---|---|
GB2545667A (en) | 2017-06-28 |
WO2017109016A1 (en) | 2017-06-29 |
GB201522521D0 (en) | 2016-02-03 |
US20180360606A1 (en) | 2018-12-20 |
EP3393399A1 (en) | 2018-10-31 |
JP2019500961A (ja) | 2019-01-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11806117B2 (en) | Drive cable for blood pump | |
US20220088368A1 (en) | Blood-pressure-measurement element | |
EP1379294B1 (en) | A blood circulation assistance device | |
US6030335A (en) | Implantable heart-assist pump of the back-pressure balloon type | |
JP6329358B2 (ja) | 経弁導管用支持ステント | |
CN113164720A (zh) | 在生物结构的脉管和腔室之间建立连接和分流的方法和技术 | |
AU2001290088A1 (en) | A blood circulation assistance device | |
EP3512578B1 (en) | Blood pump | |
WO2006067473A1 (en) | A blood circulation assistance device | |
US20160374682A1 (en) | Surgical procedure and devices for use therein | |
CN108366852A (zh) | 流动控制阀门 | |
CN102107030B (zh) | 心脏搏动辅助装置、心脏搏动辅助系统、以及治疗心力衰竭的方法 | |
WO1998028034A1 (en) | Valve for a heart assist device | |
WO2018183886A1 (en) | Arteriovenous graft for minimizing arterial steal and graft thrombosis | |
CN219836043U (zh) | 一种微创型导管式左心室辅助装置 | |
WO2022047324A1 (en) | Aspiration systems and methods, and expanding-mouth catheters | |
CN116328175A (zh) | 一种微创型导管式左心室辅助装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180803 |