CN105007843A - 医用泵 - Google Patents
医用泵 Download PDFInfo
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- CN105007843A CN105007843A CN201380070903.0A CN201380070903A CN105007843A CN 105007843 A CN105007843 A CN 105007843A CN 201380070903 A CN201380070903 A CN 201380070903A CN 105007843 A CN105007843 A CN 105007843A
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- 239000012530 fluid Substances 0.000 claims abstract description 126
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000005086 pumping Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 230000002572 peristaltic effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 6
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- 238000005859 coupling reaction Methods 0.000 description 6
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- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
- A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
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- 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
- A61M1/71—Suction drainage systems
- A61M1/77—Suction-irrigation systems
- A61M1/774—Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
-
- 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
- A61M1/80—Suction pumps
-
- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0233—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs
- A61M3/0254—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped
- A61M3/0258—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped by means of electric pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
- A61B2017/00553—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated using a turbine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
- A61B2017/320775—Morcellators, impeller or propeller like means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/005—Auxiliary appliance with suction drainage system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/007—Auxiliary appliance with irrigation system
-
- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0201—Cassettes therefor
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Surgery (AREA)
- Vascular Medicine (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Pulmonology (AREA)
- Surgical Instruments (AREA)
- External Artificial Organs (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
一种手术器械,其包括衬套、旋转构件、叶轮以及叶轮外壳。所述衬套具有近侧部分和远侧部分,且限定其间的管腔。所述衬套的远侧部分包括套管部分,所述套管部分配置成可旋转地支撑所述旋转构件。所述旋转构件延伸穿过所述衬套,且具有近端和远端。所述旋转构件的近端配置成联接到外部驱动机构。所述叶轮联接到所述旋转构件的远端,且配置来使流体加速流入或流出所述管腔。所述叶轮外壳联接到所述衬套的远侧部分,且限定围绕所述叶轮的叶轮体积。围绕所述衬套的套管部分限定一个或更多个开口,使得所述管腔与所述叶轮体积流体连通。
Description
技术领域
此文件涉及医用泵。
背景技术
各种类型的医用泵***被用于内窥镜检查,且特别是关节内窥镜检查。一些泵***可使用专用的电动力的控制单元,所述控制单元在管设备内产生流体流。在一些情况下,可使用无电源的泵送***。通过将流体袋提升至手术部位之上,仅通过重力来建立流体流的重力供给管设备是一个此类的示例。可替代地或者额外地,通过挤压流体袋且由此增加流体压力,来自流体袋的流体可被迫使至手术部位。在一些情况下,内联柔性流体室可以被手动地或者通过机械设备挤压,以通过提供额外的流动/压力来增加重力流。
发明内容
根据一方面,手术器械包括衬套(hub)、旋转构件、叶轮以及叶轮外壳(enclosure)。所述衬套具有近侧部分和远侧部分,且限定所述近侧和远侧部分之间的管腔。所述衬套的远侧部分包括套管部分,所述套管部分配置成可旋转地支撑所述旋转构件。所述旋转构件延伸穿过所述衬套,且具有近端和远端。所述旋转构件的近端配置成联接到外部驱动机构。所述叶轮联接到所述旋转构件的远端,且配置来使流体加速流入或流出所述管腔。所述叶轮外壳联接到所述衬套的远侧部分,且限定围绕所述叶轮的叶轮体积。围绕所述衬套的所述套管部分限定一个或更多个开口,使得所述管腔与所述叶轮体积流体连通。
这个方面的执行可包括一个或更多个以下特征。例如,叶轮可以是轴向叶轮,其配置来使流体在大致平行于所述旋转构件的旋转轴线的方向上加速。叶轮可以是离心式叶轮,其配置来使流体在大致垂直于所述旋转构件的旋转轴线的方向上加速。叶轮的设计可以与特定的泵类型相关联,特定的泵类型选自包括下列的组别:离心式泵、齿轮泵、螺杆泵、叶片泵、凸轮泵和蠕动泵。叶轮外壳可以与所述衬套集成。所述手术器械可配置来在冲洗中使用,使得流出所述衬套的管腔的流体由所述叶轮加速。所述手术器械可配置来在抽吸(aspiration)中使用,使得流入所述衬套的管腔的流体由所述叶轮加速。所述手术器械可进一步包括刮刀机头。所述刮刀机头可包括外部驱动机构。所述手术器械可进一步包括流体袋,其中所述流体袋与所述衬套的管腔流体连通。所述手术器械可进一步包括控制单元,所述控制单元配置来控制所述外部驱动机构的RPM。
根据另一方面,手术器械***包括刮刀机头和配置来泵送流体的泵芯。所述刮刀机头包括驱动机构。所述驱动机构包括远端,所述远端配置成可释放地联接到旋转刀具的近端。所述泵芯包括配置成可释放地联接到所述刮刀机头的衬套、由所述衬套可旋转支撑且配置成联接到所述刮刀机头驱动机构的远端的旋转构件以及联接到所述旋转构件且配置来加速流体的叶轮。所述联接可经直接接合所述叶轮的旋转驱动轴或者经非接触式磁性旋转驱动来实现,所述非接触式磁性旋转驱动使用磁力与所述叶轮接合,以提供旋转。旋转驱动的另一个源包括柔性联接件或者线缆。
这方面的执行可包括一个或更多个以下特征。例如,所述泵芯的衬套可进一步限定管腔,所述管腔配置来允许所述流体流动穿过其中。所述刮刀机头可进一步限定管腔,所述管腔配置成与所述泵芯的管腔流体连通。所述手术器械***可进一步包括与所述泵芯流体连通的流体贮存器。所述手术器械***可进一步包括控制单元,所述控制单元配置来控制所述外部驱动机构的RPM。所述驱动机构可沿着第一方向被驱动,以朝向手术部位泵送流体。所述驱动机构可沿着与所述第一方向相反的第二方向被驱动,以将流体泵送离开所述手术部位。
根据另一方面,手术器械包括:衬套,所述衬套具有近侧部分和配置成可旋转地支撑旋转构件的远侧部分;旋转构件,其延伸穿过所述衬套;叶轮外壳,其联接到所述衬套的远侧部分,且限定围绕所述叶轮的叶轮体积;以及叶轮,其联接到所述旋转构件的远端且配置来使流体加速流入或流出所述叶轮体积。所述旋转构件具有近端和远端,且所述近端配置成联接到外部驱动机构。
这方面的执行可包括一个或更多个以下特征。例如,所述叶轮外壳可限定入口和出口,流体分别通过所述入口和出口进入和离开所述叶轮体积。所述叶轮可以是离心式叶轮,其配置来使流体在大致垂直于所述旋转构件的旋转轴线的方向上加速。
根据另一方面,所述泵可以与旋转手术刀片一起使用。可以通过使与所述马达驱动单元接合的刀片衬套经通过齿轮组、驱动带的直接接触或者非接触式的磁性驱动向所述泵驱动提供旋转运动,来实现这种方法。
一个或更多个执行的细节在以下的附图和描述中阐述。从说明书、附图和权利要求中,其它的特征、方面和优点将会变得明显。
附图说明
图1是联接到机头的泵芯的透视图,其也可以与例如旋转刀具附件一起使用。
图2A是联接到机头的旋转刀具附件的侧截面视图。
图2B是旋转刀具附件的透视图。
图3A和3B是泵芯的透视图,其分别显示具有和不具有叶轮外壳的视图。
图4是泵芯的侧截面视图。
图5是泵芯的一部分的正面透视图。
图6图示了包括泵芯的示例的泵送和控制***。
图7是泵芯的可替代执行的透视图。
图8图示包括泵芯的可替代执行的示例的泵送和控制***。
图9A和9B分别是泵芯的另一可替代执行的透视图和侧截面视图。
具体实施方式
泵芯可用于泵送流体。泵芯可以例如用于关节/器官膨胀和冲洗和/或用于组织切除和排出。泵芯可以被配置来联接到现有的具有马达单元的刮刀机头。
参照图1,泵送***10能够包括泵芯100和刮刀机头102。泵芯100能够通过例如***且闩锁在刮刀机头102的远侧孔(未示出)中可释放地联接到刮刀机头102。各种类型的刮刀机头、马达驱动单元或者其它类似的手术器械可以与泵芯100结合使用;这样的机头的进一步描述可以在美国专利No. 5,871,493和7,766,844中找到,这两者通过引用整体上并入本文中。
参照图2A和图2B,刮刀机头102被图示为联接到旋转刀具附件300。刮刀机头102包含驱动机构108,例如电动马达,且进一步包含流体通道110。驱动机构108能够接合且传递旋转运动至附件300,且流体通道110能够与附件300内限定的管腔114流体连通。
在一些执行中,图2B所示的旋转刀具附件300能够被用于通过使用管中管(tube in tube)构造来切除组织,该管中管构造剪切位于外部非旋转管370和内部旋转轴374的刀刃之间的组织。外部管370能够在外部管370的近侧区域371处连接到衬套320,且内部轴374能够被可旋转地容纳在衬套320和外部管370中。内部轴374能够包括位于外部管370中的管376。管376能够限定管腔114,且连接到马达联接件350,该马达联接件350位于轴374的近侧区域且部分容纳在衬套320中。马达联接件350能够包括联接到驱动机构108的延伸部355,驱动机构108可使轴374相对于衬套320和外部管370旋转。在一些情况下,旋转刀具附件300可包括位于其远端的其它类型的刀具,例如三角凿刀刀具(burr cutter)。
回到图2A,流体通道110能够在抽吸开口633处终止,以便于例如应用吸力到管腔114,以从手术部位移除流体和切割组织。管腔114能够位于轴374的管376内(图3),且具有与马达联接件350内的通孔380连通的近侧开口375。可通过流体通道110应用吸力,以通过外部管370中的面向侧面的窗口305和内部管376中的面向侧面的窗口307将材料吸取到管腔114,且通过管腔开口375和孔380的两端吸取至流体通道110。
参照图3A和3B,泵芯100包括固定衬套118和内部旋转构件120。如所提及的,泵芯100能够被配置为联接到现有的机头,例如刮刀机头102。内部旋转构件120通常纵向延伸通过衬套118的全部或者一部分,且被可旋转地支撑在衬套118内,如以下进一步讨论的。在一些情况下,旋转构件120的近端122延伸到衬套118的近侧部分124之外,且包括用于联接到驱动机构的马达联接部分126。延伸部128能够从马达联接部分126的近侧延伸,其能够与驱动机构108接合,使得驱动机构108的旋转运动能够传输到旋转构件120。叶轮外壳116,在图3A中示出且为了清楚起见在图3B中移除,能够附接到衬套118的远侧部分130。叶轮外壳116在例如泵芯100的组装或维护期间可以被移除。可替代地,叶轮外壳116能够作为泵芯100的一部分整体形成为(例如)衬套118的延伸部。
再参照图4,内部旋转构件120能够包括马达联接部分126和轴部分121,其在远侧附接到马达联接部分126。轴部分121的远端132能够延伸到衬套118的远侧部分130之外,且叶轮134能够附接到远端132。叶轮外壳116围绕叶轮134且限定围绕叶轮134的叶轮体积136。当马达联接部分126联接到驱动机构108时,驱动机构108的旋转将引起叶轮134的相对应的旋转,如以下将进一步讨论的,这反过来将引起流体的泵送。叶轮134能够是轴向叶轮,其被设计为在大致平行于叶轮的旋转轴线的方向上使流体加速。
图4中所图示的泵芯100还限定管腔138,管腔138大体在近端124和远端130之间延伸。在一些情况下,管腔138的近端可以被马达联接单元126的一部分局部地或者全部地堵塞。这样,为了建立刮刀机头的流体运送管腔(例如刮刀机头102的流体通道110)与叶轮体积136之间的流动路径,额外的流动路径可被建立穿过旋转构件120。例如,轴部分121可限定管腔123,管腔123可经本体开口125与管腔138流体连通。额外地,轴部分121的近端可包括开口127,开口127与马达联接部分126内限定的通孔129流体连通,其中通孔129能够与机头的流体运送管腔(例如,流体通道110)流体连通。刮刀机头的流体运送管腔能够进一步与流体贮存器(例如,流体袋150(参照图6))流体连通,使得在流体贮存器和叶轮体积136之间建立流体流动路径。可替代地或者额外地,流体贮存器可直接连接到泵芯100,且与泵芯100建立流体流动路径,而不通过机头102。在冲洗过程期间,如以下进一步讨论的,流体经外壳116上的开口(例如,管连接件146)离开叶轮体积136。相反,在抽吸过程期间,流体经例如管连接件146进入叶轮体积136。
内部旋转构件120能够可旋转地支撑在泵芯100内。例如,如图4所示,轴部分121的远端132能够由衬套118的套管部分140支撑,其中套管部分140密封地围绕旋转构件120的轴部分121的周围,以允许它绕着衬套118的纵向轴线旋转。套管部分140的内表面和旋转构件120的周围之间的接合部位能够进一步包括各种密封件、轴衬、轴承等,以帮助减少两个表面之间的摩擦,同时还防止在一些情况下其间的不必要的流体通过。旋转构件还可联接到刮刀或者其它旋转手术器具的驱动机构,使得叶轮和刮刀共享共同的驱动源。用于传递旋转运动至旋转构件的驱动联接可以是柔性的,例如线缆,或者可以是非接触式的,例如磁性联接。
还参照图5,管腔138的远端能够由衬套118的端面142限定,且套管部分140能够是端面140的整体或者单独附接的部分。端面142通常提供管腔138内的流体与叶轮体积136内的流体之间的分隔。为了提供管腔138和叶轮体积136之间的流体连通,端面142能够限定一个或更多个流体开口144。如图5所示,三个流体开口144限定在端面142中,且关于旋转构件120(图4)等距间隔开。端面142内或者附近的可替代的流体开口构型也是可能的。在一些情况下,一个或更多个流体开口可限定成穿过旋转构件120和/或叶轮134。
完整的泵送和控制***20的示例在图6中示出。如图所示,泵送***10,如上所描述的,进一步连接到流体袋150和控制单元152。机头102和控制单元152可以是现有的手术刮刀***的一部分,且控制单元152可被配置来电子地控制附接到机头102的旋转刀具的参数。当机头102与旋转刀具附件(未示出)或者其它非泵送附件一起使用时,可以由重力通过可替代的管线(未示出)来建立从流体袋150至手术部位154的流体流,该可替代管线限定流体袋150和手术部位154之间的流体路径。
还参照图4,当泵送和控制***20连接到泵芯100时,流体可被泵送到手术部位154,例如通过在第一方向上(例如,顺时针)旋转叶轮134,使得叶轮体积136内的流体被朝向手术部位154加速,来提供冲洗。在这种情况下,来自流体贮存器(例如,流体袋150)的流体流动通过管腔138,经过流体开口144,且进入叶轮体积136,在此它被加速流出管连接件146。如图6所示,管连接件146能够进一步连接到管156。管156能够反过来连接到插管158,插管158能够放置在手术部位154内或者附近。
类似地,当泵送和控制***20连接到泵芯100时,流体可被泵送离开手术部位154,例如通过在与第一方向相反的第二方向上(例如逆时针)旋转叶轮134,来提供抽吸。在这种情况下,叶轮体积136内的流体被朝向管腔138加速,使得流体从手术部位154被泵送朝向例如流体连接到机头102的废料容器(未示出)。
为了控制如上所述的叶轮旋转用于冲洗和抽吸过程两者,以及期望将流体朝向手术部位/从手术部位泵送的其它过程,控制单元152能够提供必要的电功率/信号至刮刀机头102(图2A)中的驱动机构108。例如,控制单元152能够被设定来驱动/旋转驱动机构,且因此驱动/旋转与其联接的叶轮134以5000RPM旋转。5000RPM的叶轮旋转可对应于例如接近200-250 mm Hg的泵压力以及2~2.5L/min的流速。然而,叶轮旋转、泵压力和/或流速之间的关系通常取决于多种因素,包括但不限于:叶轮134的形状和外壳116以及被泵送的流体的特征。如此可以产生校准表/图,以建立控制单元152提供的旋转速度和产生的流体泵送特征之间的通用或特定流体的关系。在一些情况下,叶轮可在1和5000RPM之间旋转。在一些情况下,叶轮可在高达15,000RPM的速度下旋转。在一些情况下,叶轮可在高达和超出20,000RPM的速度下旋转。
参照图7,在可替代的执行中,泵芯200可以经旁通开口204在管连接件202与流体贮存器(例如在冲洗期间)或者废料容器(例如,在抽吸期间)之间建立流体连接,而不经过刮刀机头102的一部分,例如流体通道110(图2)。例如,如图7所图示的,旁通开口204可以位于外壳206的外壁上,且相对于管连接件202垂直取向。在一些情况下,旁通开口204可位于泵芯200的其它部分,例如位于衬套部分208处。当流体贮存器或者废料容器例如经位于外壳206上的旁通开口204与叶轮体积210建立直接流体连接,该叶轮体积210由外壳206限定,叶轮体积210可以不与泵芯200的其它部分流体连通。在一些情况下,泵芯200可以不包括流体运送管腔。
还参照图8,具有泵芯200的泵送***30被图示为进一步连接到流体袋150和控制单元152。如图所示,在流体袋150和手术部位154之间建立流体路径,而不通过机头102。
泵芯100、200的可替代执行可使用叶轮,该叶轮被设计为以相对于旋转构件120的轴线的某角度来加速流体。例如,参照图9A和9B所图示的泵芯300,离心式叶轮302可旋转地连接到固定衬套304。泵芯300能够包括旋转构件306,该旋转构件306延伸通过泵衬套304,且被配置来连接至外部驱动机构。旋转构件306绕着旋转轴线318旋转。旋转构件306的近端能够限定通孔308,该通孔308与例如机头102的流体通道110(图2A)流体连通。旋转构件306能够进一步包括中空轴310,该中空轴310的远端附接到离心式叶轮302。叶轮外壳312围绕叶轮302,且限定围绕叶轮302的叶轮体积320。叶轮外壳312能够包括沿着轴线316延伸远离叶轮体积320的管连接件314。
在使用中,例如在冲洗过程期间,通过通孔308进入芯300的流体能够在中空轴310内沿着轴线318流动且经叶轮开口322进入叶轮体积320。流体随后经管连接件314沿着轴线316被泵送出叶轮体积320。如从图9B的芯300的侧视图中能够看到的,离心式叶轮302在大致垂直于旋转轴线318的方向上使流体加速流出管连接件314。
泵芯100、200、300的其它可替代执行可使用叶轮,该叶轮是与各种旋转正排量类型的泵相关联的旋转的流体移动构件。在一些情况下,旋转泵可包括具有两个啮合的齿轮的齿轮泵,这两个啮合的齿轮在围绕齿轮旋转范围的周围安装的外壳内旋转,其中流体被限制在齿轮齿和外壳的壁之间且在其间传输。在一些情况下,旋转泵可包括螺杆泵,螺杆泵具有两个相反螺纹的反向旋转螺杆,螺杆泵安装在外壳内,其中螺杆的旋转吸取通过外壳的流体。在一些情况下,旋转泵可包括具有转子的叶片泵,转子装备有固定的或者可移动的叶片,叶片在外壳内是偏置的,其中转子组件的旋转引起叶片的偏移或者滑动动作,以产生促使流体通过外壳的可变体积的流体囊。在一些情况下,旋转泵可包括凸轮(lobe)或者罗茨(roots)类型的泵,其具有啮合的旋转的螺旋凸轮,该螺旋凸轮限制且传输流体通过外壳。在一些情况下,旋转泵可包括蠕动泵,其中包含在柔性管内的流体被推动通过阻塞-恢复循环(occlusion-restitution cycle),该阻塞-恢复循环由装备有一组滚子的转子来驱动,该组滚子围绕转子的周界。
虽然此文献包含许多特定的执行细节,但是这些不应被解释为对任何执行的范围或者所要求保护的范围的限制,而应该被解释为特殊执行的特定特征的描述。在此文献中在单独的执行的上下文中描述的某些特征也能够在单个执行中以组合的方式执行。相反地,在单个执行的上下文中描述的各个特征也能够在多个执行中分开地或者以任何合适的子组合的方式执行。此外,虽然特征在以上被描述为在某些组合中起作用,且甚至最初被要求保护如此,来自所要求保护的组合的一个或更多个特征在一些情况下能够从组合中被完成,且所要求保护的组合可以涉及子组合或者子组合的变型。因此,本主题的特定执行已经被描述。其它执行也在以下权利要求的范围内。
Claims (24)
1.一种手术器械,其包括:
衬套,其具有近侧部分和远侧部分,所述衬套限定在所述近侧部分和所述远侧部分之间的管腔,其中所述衬套的所述远侧部分包括套管部分,所述套管部分配置成可旋转地支撑旋转构件;
旋转构件,其延伸穿过所述衬套,所述旋转构件具有近端和远端,所述旋转构件的所述近端配置成联接到外部驱动机构;
叶轮,其联接到所述旋转构件的所述远端,且配置来使流体加速流入或流出所述管腔;以及
叶轮外壳,其联接到所述衬套的所述远侧部分,且限定围绕所述叶轮的叶轮体积,
其中围绕所述衬套的所述套管部分限定一个或更多个开口,使得所述管腔与所述叶轮体积流体连通。
2.根据权利要求1所述的手术器械,其中所述叶轮是轴向叶轮,其配置来使流体在大致平行于所述旋转构件的旋转轴线的方向上加速。
3.根据权利要求1所述的手术器械,其中所述叶轮是离心式叶轮,其配置来使流体在大致垂直于所述旋转构件的旋转轴线的方向上加速。
4.根据权利要求1所述的手术器械,其中所述叶轮的设计与特定的泵类型相关联,所述特定的泵类型选自包括下列的组别:离心式泵、齿轮泵、螺杆泵、叶片泵、凸轮泵和蠕动泵。
5.根据权利要求1所述的手术器械,其中所述叶轮外壳与所述衬套集成。
6.根据权利要求1所述的手术器械,其中所述手术器械配置来在冲洗中使用,使得流出所述衬套的所述管腔的流体由所述叶轮加速。
7.根据权利要求1所述的手术器械,其中所述手术器械配置来在抽吸中使用,使得流入所述衬套的所述管腔的流体由所述叶轮加速。
8.根据权利要求1所述的手术器械,其进一步包括刮刀机头,其中所述刮刀机头包括所述外部驱动机构。
9.根据权利要求1所述的手术器械,其进一步包括流体袋,其中所述流体袋与所述衬套的所述管腔流体连通。
10.根据权利要求1所述的手术器械,其进一步包括控制单元,所述控制单元配置来控制所述外部驱动机构的RPM。
11.一种手术器械***,其包括:
刮刀机头,其包括驱动机构,所述驱动机构具有远端,所述远端配置成可释放地联接到旋转刀具的近端;以及
泵芯,其配置来泵送流体,其包括:
衬套,其配置成可释放地联接到所述刮刀机头,
旋转构件,其由所述衬套可旋转地支撑且配置成联接到所述刮刀机头驱动机构的所述远端,以及
叶轮,其联接到所述旋转构件且配置来加速流体。
12.根据权利要求11所述的手术器械***,其中所述泵芯的所述衬套进一步限定管腔,所述管腔配置来允许所述流体流动穿过其中。
13.根据权利要求12所述的手术器械***,其中所述刮刀机头进一部限定管腔,所述管腔配置成与所述泵芯的所述管腔流体连通。
14.根据权利要求11所述的手术器械***,其进一步包括与所述泵芯流体连通的流体贮存器。
15.根据权利要求11所述的手术器械***,其进一步包括控制单元,所述控制单元配置来控制所述驱动机构的RPM。
16.根据权利要求11所述的手术器械***,其中所述驱动机构沿着第一方向被驱动,以朝向手术部位泵送流体。
17.根据权利要求16所述的手术器械***,其中所述驱动机构沿着与所述第一方向相反的第二方向被驱动,以将流体泵送离开所述手术部位。
18.一种手术器械,其包括:
衬套,其具有近侧部分和远侧部分,所述远侧部分配置成可旋转地支撑旋转构件;
旋转构件,其延伸穿过所述衬套,所述旋转构件具有近端和远端,且所述旋转构件的所述近端配置成联接至外部驱动机构;
叶轮外壳,其联接到所述衬套的所述远侧部分,且限定围绕叶轮的叶轮体积;以及
叶轮,其联接到所述旋转构件的所述远端且配置来使流体加速流入或流出所述叶轮体积。
19.根据权利要求18所述的手术器械,其中所述叶轮外壳限定入口和出口,流体分别通过所述入口和出口进入和离开所述叶轮体积。
20.根据权利要求18所述的手术器械,其中所述叶轮是离心式叶轮,其配置来使流体在大致垂直于所述旋转构件的旋转轴线的方向上加速。
21.根据权利要求18所述的手术器械,其中所述衬套配置用于旋转地附接到手术刀片,其进一步包括驱动联接件,所述驱动联接件使所述外部驱动机构接合到所述手术刀片。
22.根据权利要求21所述的方法,其中所述驱动联接件是适于非接触接合的磁性联接件。
23.根据权利要求11所述的手术器械,其中所述刮刀进一步包括手术刀片,其进一步包括所述驱动机构和所述旋转构件之间的驱动联接件,所述驱动机构配置用于使所述手术刀片和所述旋转构件旋转。
24.根据权利要求23所述的手术机头,其中所述驱动联接件提供了所述驱动机构和所述旋转构件之间的非接触磁性联接件。
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EP2922482B1 (en) | 2019-10-16 |
EP2922482A1 (en) | 2015-09-30 |
US9546662B2 (en) | 2017-01-17 |
AU2013348234B2 (en) | 2018-02-15 |
WO2014081661A1 (en) | 2014-05-30 |
CN105007843B (zh) | 2017-09-29 |
JP2015534889A (ja) | 2015-12-07 |
AU2013348234A1 (en) | 2015-06-04 |
US20140140815A1 (en) | 2014-05-22 |
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