CN104640523A - 具有集成的抽吸和冲洗泵的白内障超声乳化手柄 - Google Patents
具有集成的抽吸和冲洗泵的白内障超声乳化手柄 Download PDFInfo
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Abstract
一种冲洗手术部位且从所述手术部位抽吸流体的方法。所述方法包括:使用真空压力引导流体通过白内障超声乳化手柄中的抽吸导管,所述真空压力是由所述手柄中的与所述抽吸导管介接的泵产生的;以及使用压力引导冲洗流体通过所述手柄中的冲洗导管,所述压力是由与所述冲洗导管介接的所述泵产生的。所述方法还包括:通过激活所述手柄中的所述泵来增大通过所述冲洗导管的冲洗流体流量;使用传感器检测与手术部位相关联的压力;以及通过基于所述检测的压力调整泵速度来控制眼内压(IOP)。
Description
技术领域
本文中公开的装置、系统和方法大体上涉及白内障超声乳化手术,且更明确地说,涉及在白内障手术期间较好地调节眼睛中体验的压力的装置。
发明背景
人的眼睛起作用以通过使光透射通过清晰的外部部分(称作角膜)并借助晶状体将图像聚焦到视网膜上来提供视觉。聚焦的图像的质量取决于许多因素,包括眼睛的大小和形状,以及角膜和晶状体的透明度。当年龄或疾病导致晶状体变得较不透明时,视觉因为可透射到视网膜的光减少而衰退。眼睛的晶状体的此缺陷在医学上称作白内障。对此情况的常规治疗是手术移除晶状体并通过人工晶状(IOL)体来取代晶状体功能。
在美国,大部分白内障晶状体是通过称作白内障超声乳化术的手术技术移除的。适合用于白内障超声乳化手术的典型的手术手柄由超声地驱动的白内障超声乳化手柄、附接的由冲洗套管包围的中空切割针以及电子控制台组成。手柄组合件通过电缆和弹性导管附接到控制台。通过电缆,控制台改变由手柄发射到附接的切割针的功率电平。弹性导管通过手柄组合件将冲洗流体供应到手术部位且从眼睛汲取抽吸流体。
典型手柄中的操作部分是直接附接到一组压电晶体的中心地定位的中空共鸣条或喇叭。晶体供应在白内障超声乳化术期间驱动喇叭和附接的切割针两者所需的所要超声波振动,且由控制台控制。晶体/喇叭组合件通过弹性座架悬置在手柄的中空主体或外壳内。手柄主体终止于主体的远端处的减小的直径部分或头锥处。通常,头锥在外部车螺纹以接纳中空冲洗套管,该冲洗套管围绕切割针的长度的大部分。同样,喇叭孔在其远端在内部车螺纹以接纳切割尖端的外部螺纹。冲洗套管也具有在内部车螺纹的孔,其螺旋到锥头的外部螺纹上。切割针被调整来使得其尖端突出仅超过冲洗套管的开放端预定量。
在白内障超声乳化手术期间,切割针的尖端和冲洗套管的末端通过眼睛的外部组织中的小切口插入到眼睛的前段中。外壳医生使切割针的尖端与眼睛的晶状体接触,使得振动尖端使晶状体分裂。通过切割针的内部孔将所得碎片连同在手术期间提供到眼睛的冲洗溶液一起从眼睛抽吸出,并抽吸到排液储存器中。
在整个手术中,冲洗流体被泵吸到眼睛中,流动于冲洗套管与切割针之间并在冲洗套管的尖端处和/或从在该冲洗套管末端附近切入到该冲洗套管中的一个或多个端口或开口流出到眼睛中。此冲洗流体是至关重要的,因为其防止眼睛在乳化的晶状体的移除期间萎陷。冲洗流体还保护眼睛组织以隔离由超声波切割针的振动产生的热。此外,冲洗流体使乳化的晶状体的碎片悬置以用于从眼睛抽吸。
白内障超声乳化手术期间的常见现象由在整个外科手术过程中发生的变化的流速引起。变化的流速导致从冲洗流体供应处到眼睛的冲洗流体路径中的变化的压力损失,从而导致前眼房中的压力(也称作眼内压或IOP。)的改变。较高流速导致较大的压力损失和较低IOP。当IOP降低时,眼睛内的操作空间减小。
白内障超声乳化手术期间的另一常见并发症由抽吸针的阻塞或闭塞引起。当冲洗流体和乳化组织通过中空切割针被抽吸离开眼睛内部时,组织的大于针孔直径的碎片可变得堵塞在针的尖端。当尖端堵塞时,真空压力在尖端内形成。在移除堵塞时眼睛中的前眼房中的所得压力降称作后闭塞涌动。在一些情况下,此后闭塞涌动可导致相对大量的流体和组织太快地被抽吸出眼睛,从而可能导致眼睛萎陷和/或导致晶状体囊撕裂。
各种技术已经设计以减少此涌动。然而,仍需要减少后闭塞涌到以及在整个变化的流动条件中维持稳定的IOP的改进的白内障超声乳化装置。还需要消除对复杂的主动冲洗系统的需要以及减少所需装置的数目。本公开解决了现有技术中的一个或多个缺陷。
发明概要
在示例性方面,本公开涉及一种白内障超声乳化手柄。所述手柄包括:主体,其具有远端和近端;超声波尖端,其安置在所述主体的所述远端且被配置来从手术部位抽吸抽吸流体;以及安置在所述主体的所述远端的套管,其被配置来用冲洗流体冲洗所述手术部位。所述手柄还包括可拆卸式盒,其安置在所述主体中且与所述超声波尖端和所述套管流体连通,其中所述盒包括被配置来含有所述抽吸流体的抽吸导管以及被配置来含有所述冲洗流体的冲洗导管。所述手柄还包括泵,其安置在所述主体内且与所述抽吸导管和所述冲洗导管介接,使得在所述泵激活后,所述冲洗导管内的所述冲洗流体在朝向所述套管且远离所述近端的方向上流动,且所述抽吸导管内的所述抽吸流体在远离所述尖端且朝向所述近端的方向上流动。
在一方面,所述手柄还包括安置于所述主体内且被配置来与所述抽吸导管介接的阀,所述阀被配置来控制所述抽吸导管内的抽吸流体的流速。
在另一示例性方面,本公开涉及一种冲洗手术部位且从所述手术部位抽吸流体的方法。所述方法包括:使用真空压力引导流体通过白内障超声乳化手柄中的抽吸导管,所述真空压力是由所述手柄中的与所述抽吸导管介接的泵产生的;以及使用压力引导冲洗流体通过所述手柄中的冲洗导管,所述压力是由与所述冲洗导管介接的所述泵产生的。所述方法还包括:通过激活所述手柄中的所述泵来增大通过所述冲洗导管的冲洗流体流量;使用传感器检测与手术部位相关联的压力;以及通过基于所述检测的压力调整抽吸阀的状态来控制眼内压(IOP)。
在一方面,所述方法包括通过基于所述压力调整泵速度来控制IOP。
在另一示例性方面,本公开涉及一种用于在眼部手术期间冲洗眼睛和从所述眼睛抽吸流体的抽吸和冲洗系统。所述系统包括白内障超声乳化手柄,其包括:可握取的主体,其具有远端和近端;抽吸导管,其被配置来将抽吸流体输送离开手术部位;以及冲洗导管,其被配置来朝所述手术部位输送冲洗流体。所述系统还包括安置于所述手柄内的泵,其中所述泵的至少一部分与所述抽吸导管和所述冲洗导管介接,使得在所述泵激活后,所述冲洗导管内的所述冲洗流体在朝所述手术部位的方向上流动,且所述抽吸导管内的所述抽吸流体在远离所述手术部位的方向上流动。所述系统还包括安置于所述手柄内的阀,其被配置来与所述抽吸导管介接,所述阀被配置来控制所述抽吸导管内的抽吸流体的流速。所述系统还包括:传感器,其检测表示手术部位压力的压力;以及控制器,其与所述泵、所述阀和所述传感器通信,其中所述控制器被配置来基于来自所述传感器的信息控制所述泵和所述阀的操作;且其中所述控制器被配置来改变所述手术部位处的眼内压(IOP)。
在一方面,所述控制器被配置来通过调整泵速度或通过调整所述阀的状态或两者来改变IOP。
应理解,上述一般描述和以下详细描述两者本质上都是示例性和解释性的,且旨在提供对本公开的理解而不限制本公开的范围。就此而言,根据以下详细描述,本公开的额外方面、特征和优点对于本领域技术人员将是显而易见的。
附图简述
附图说明本文中公开的装置和方法的实施方案,且与描述一起用以解释本公开的原理。
图1是根据与本公开的原理一致的实施方案的示例性白内障超声乳化手术控制台的说明。
图2是根据与本公开的原理一致的实施方案的示出各种子系统的图1的白内障超声乳化术控制台的框图,子系统包括驱动抽吸和冲洗的流体子系统。
图3是根据与本公开的原理一致的实施方案的具有拥有集成泵的白内障超声乳化手柄的图2的流体子系统的一部分的框图。
图4是根据与本公开的原理一致的实施方案的操作图3的白内障超声乳化手柄的方法的流程图说明。
具体实施方式
为了促进对本公开的原理的理解的目的,现将参考图式中说明的实施方案,且具体语言将用以描述所述实施方案。然而,将理解不旨在限制本公开的范围。对所描述的装置、仪器、方法的任何变化和进一步修改以及本公开的原理的任何进一步应用均是完全预期的,就如本公开涉及的领域的技术人员通常将想到的一样。明确地说,完全预期参考一个实施方案描述的特征、组件和/或步骤可与参考本公开的其它实施方案描述的特征、组件和/或步骤组合。然而,为了简短起见,将不单独描述这些组合的众多重复。为了简单起见,在一些例子中,相同参考数字将在图式中用以指相同或相似部分。
本公开大体上涉及用于白内障超声乳化手术的装置、系统和方法。在白内障超声乳化术期间将IOP维持在预定范围内对于手术的成功可以是重要的。冲洗流体流入到手术部位中和抽吸流体流出手术部位是影响IOP的两个重要因素。对冲洗流体流量或抽吸流体流量的任何改变的及早检测和校正会大大改进IOP的稳定性。
本文中公开的装置、系统和方法包括具有集成的抽吸和冲洗泵以及经设计以迅速改变抽吸流量和冲洗流量的抽吸阀的手柄。在本文中公开的实施方案中,使用定位于手柄中的一个泵来控制冲洗流量和抽吸流量两者实现对流量的迅速调整,同时维持可握取的手柄主体大小。在一些实施方案中,手柄包括检测手术部位处的IOP信息的传感器。此实现IOP改变的及早检测。
图1说明大体表示为100的示例性乳化手术控制台。图2是示出操作以执行白内障超声乳化手术的各种子系统的控制台100的框图。控制台100包括具有计算机系统103和相关联的显示屏幕104的底座外壳102,显示屏幕104示出与在白内障超声乳化外科手术期间的系统操作和性能有关的数据。控制台100还包括用以一起执行乳化外科手术的众多子系统的至少一部分。这些子系统中的一些包括与控制台100分离或不安置在控制台100上的组件或元件。例如,子系统包括:脚踏开关子系统106,其包括(例如)脚踏开关108;流体子系统110,其包括具有集成的抽吸和冲洗泵的手柄112;超声波产生器子系统116,其将超声波振荡提供到手柄112的切割针;以及气动玻璃体切除切割器子系统120,其包括玻璃体切除手柄122(图1中未示出)。这些子系统可重叠及合作以执行手术的各种方面。
图3是示意性地说明根据示例性实施方案的流体子系统110的一部分的框图。流体子系统110包括冲洗系统335、抽吸系统365以及手柄112。在图3中,手柄112包括可握取的主体305,其具有由数字310表示的远端以及由数字315表示的近端。切割尖端320和冲洗套管325从远端310延伸且在白内障超声乳化手术期间与手术部位(例如,眼睛)流体连通。在图3中,切割尖端320和冲洗套管325分开示出以便易于理解,然而,这些可为同轴的或以其它方式布置。手柄112包括冲洗系统335的部分和抽吸系统365的部分。另外,手柄112包括泵360以及与抽吸系统365相关联的传感器392。在一些示例性实施方案中,传感器392可沿着抽吸路径375定位或定位于远端310附近且与手术部位流体连通。在一些实施方案中,传感器392可定位于手术部位内且与控制器通信从而形成流体子系统110的一部分,如下文所描述。在一些实施方案中,传感器392检测手术部位处的压力或与手术部位相关联的压力。在此示例性实施方案中,手柄112还包括抽吸阀390,其示出为与抽吸系统365相关联。
冲洗系统335包括形成冲洗路径345的冲洗导管340,冲洗路径345与套管325和冲洗流体供应处350流体连通。冲洗流体355从冲洗流体供应处350流动通过冲洗导管340且通过套管325到手术部位中。冲洗流体供应处350可定位于(例如)固定或可调整高度处的静脉输液架上或相对于系统以其它方式安置。在一个实施方案中,冲洗导管340和冲洗流体供应处350与底座外壳102不接触,因此消除了主动冲洗。冲洗导管340可以是弹性管。在所示出的示例性实施方案中,泵360与弹性冲洗导管340介接。在一些实施方案中,冲洗系统335包括可选的冲洗传感器342,其可用以检测冲洗导管340中的冲洗流体的流体特性。在一个实施方案中且如图3所示出,可选的冲洗传感器342沿着冲洗路径345定位于驱动器400和远端310之间。在另一实施方案(未示出)中,可选的冲洗传感器342沿着冲洗路径345定位于驱动器400和近端315之间。在一个实施方案中,可选的冲洗传感器342是被配置来检测冲洗导管340内的压力的压力换能器。压力换能器可被配置来检测来自泵360上游的压力且所检测的压力可与流速相关。在压力换能器安置成检测来自泵360下游的压力的实施方案中,所检测的压力可与流速相关或可与手术部位内的压力相关或可与IOP相关。在另一实施方案中,可选的冲洗传感器342是直接测量冲洗导管340中的流量的流量传感器。
抽吸系统365包括形成抽吸路径375的抽吸导管370,抽吸路径375与尖端320和排液储存器380流体连通。在一些实施方案中,抽吸导管370是弹性管。抽吸流体385流动离开手术部位,通过尖端320且收集在排液储存器380中。抽吸系统365还包括抽吸阀390。在一些实施方案中,抽吸阀390是可变控制阀。在一些实施方案中,抽吸阀390是压电电子阀。在所示出的实施方案中,抽吸阀390定位于泵360与近端315之间。在所示出的示例性实施方案中,泵360与弹性抽吸导管370介接。抽吸流体385大体上包括冲洗流体355,其已与手术部位以及将从手术部位移除的其它事物(例如,眼睛晶状体)接触。
在图3中,泵360同时与冲洗导管340和抽吸导管370两者介接。泵360包括电机395和驱动器400。在一些实施方案中,泵360是蠕动泵。在一个实施方案中,驱动器400具有压在弹性抽吸导管370和弹性冲洗导管340上的螺旋结构。以此方式,螺旋式或涡卷式抽吸泵与电机395、驱动器400、抽吸导管370和冲洗导管340一起实现。冲洗导管340经安置以使得驱动器400的移动导致冲洗流体355流动离开冲洗流体供应处350且流向手术部位,而其同时导致抽吸流体385流动离开手术部位且流向排液储存器380。电机395耦合到驱动器400且用以使驱动器400旋转。电机395可经控制以控制驱动器400的移动,如下文更清晰地描述。电机395通常为DC电机,但可以是适合用于使驱动器400旋转的任何类型的电机或驱动器。尽管将泵360描述为螺旋式蠕动泵,但也可使用其它类型的泵。
在图3中,流体子系统110还可包括控制器405。在一些实施方案中,控制器405安置在控制台100上。控制器405与传感器392和可选的冲洗传感器342通信,且被配置来从传感器392或可选的冲洗传感器342或两者接收IOP信息。控制器405可包括处理器和存储器,存储器可包括用于操作抽吸阀390、用于操作泵360,和或检测从传感器392、342接收的信息的可执行程序。控制器405可接收来自操作者的输入或可包括预存储的对冲洗流量或抽吸流量或两者的最佳目标。这些目标和所接收的输入可以是单一值或值的范围。在一个实施方案中,控制器405是被配置来控制抽吸阀390以减轻压力偏差的PID控制器。
在一个实例中,控制器405可包括一个或多个预先确立的最佳流量阈值,其确立抽吸导管370或冲洗导管340或两者中的所期望的流体流量。控制器405可包括随冲洗压力或冲洗流体流速而变的最佳冲洗流量阈值。控制器405可包括随抽吸压力或抽吸流体流速而变的最佳抽吸流量阈值。可包括类似的阈值以用于压力设置和真空设置。这些阈值可由操作者输入或可在制造期间预设和存储。
控制器405与泵360通信且被配置来控制泵360的操作。在操作中,电机395使驱动器400旋转。控制器405控制电机395的操作。以此方式,驱动器400可按任何所期望的速度旋转以产生任何所期望的抽吸流量和冲洗流量。当旋转时,驱动器400通过抽吸导管370汲取抽吸流体385,且通过冲洗导管340朝手术部位汲取冲洗流体355。控制器405使用从传感器392或可选的冲洗传感器342或两者接收的压力信息来确定泵360的速度应增大还是减小以维持或调节IOP。
控制器405与抽吸阀390通信且被配置来控制抽吸阀390的状态,这意味者控制器控制阀移动到较开放的位置、完全开放的位置、较闭合的位置或完全闭合的位置。在一些实施方案中,抽吸流体385的流量由抽吸阀390的状态控制。抽吸阀390越开放,抽吸导管370内的抽吸流体385的流量越高。抽吸阀390越不开放,抽吸导管370内的抽吸流体385的流量越低。控制器405使用从传感器392接收的压力或流量信息来确定抽吸阀390的状态是否应调整(增大或减小)。控制器405可被配置来使用多个不同或重叠的方法中的任一者来控制IOP。一些实施方案利用手柄中的泵360来维持到眼睛的所期望的压力或所期望的流量。在一个实施方案中,控制器405被配置来通过按对应于通过冲洗导管340的特定流速的预先确立的速度设置操作泵来维持IOP。因此,为了将流速增大或减小到所期望的目标流速,控制器405控制泵速度。在其它实施方案中,控制器405从可选的冲洗传感器342接收所检测的信息,且基于此信息,控制器405是增大或减小泵速度以实现所期望的流速的响应性系统。
其它实施方案利用手柄中的阀390来维持到眼睛的所期望的压力或所期望的流量。在这些实施方案中,在泵速度保持恒定的情况下,控制器405可控制阀390以增大或减小通过抽吸导管370的流量。在一些实施方案中,控制器405操作阀390以将抽吸流体流量维持在所期望的或目标流速内。此可通过借助传感器392检测抽吸导管370中的压力或流速,且控制阀390以增大或减小通过阀390的流速来完成。在一些实施方案中,控制器405基于阀位置操作阀390,其中基于阀390上的位置,流速是已知的。因此对于任何给定的流速,系统可通过将阀设置为对应于所期望的流速的状态来将流速维持在目标范围内。
别的其它实施方案利用泵360和阀390两者来实现所期望的流速,以及同样地实现对应的所期望的IOP。例如,可通过按一方式同时控制泵速度和阀状态两者以增大或减小流量以维持所期望的IOP来实现较快响应。
在一个实施方案中,主体305包括被配置来接纳可拆卸式手柄盒406的开口。可拆卸式盒406包括冲洗系统335和抽吸系统365的一部分,其中冲洗系统335和抽吸系统365的部分与尖端320和套管325流体连通。使用可拆卸式手柄盒406消除对流体筒的需要,流体筒通常附接到控制台100的底座外壳102或在控制台100的底座外壳102内。可拆卸式盒406可扣入到适当位置以选择性地与泵啮合。在一些实施方案中,可拆卸式盒是用于一次性使用的。
在一个实施方案中,抽吸导管和冲洗导管在泵360与手术部位之间的长度是极小的(大约几英寸或几厘米)。另外,抽吸导管和冲洗导管在泵与手术部位之间的此长度可以是非顺应性的(即,其可以是刚性的)。此在图3中由导管407的长度表示。在泵360与手术部位之间具有长度小的非顺应性导管407可解除与现有技术系统相关联的后闭塞涌动。
冲洗导管和抽吸导管340、370的横截面积可被选择来提供所期望的流速。在一些实施方案中,冲洗导管340的横截面积和抽吸导管370的横截面积是相同的。在其它实施方案中,横截面积是不同的。在一个实施方案中,冲洗导管340的横截面积可大于抽吸导管370的横截面积以便实现比抽吸流体流量大的冲洗流体流量,进而确保冲洗流体流量大于抽吸流体流量。由于冲洗导管340和抽吸导管370两者都与电机395的驱动器400介接,使横截面积不同实现相同的驱动器旋转以产生多种冲洗流体流量与抽吸流体流量比率。
在图3中示出的示例性实施方案中,压力传感器392沿着抽吸路径375定位于泵360与远端310之间。以此方式,传感器392可准确地读取非常靠近手术部位的抽吸导管370中的压力情形。检测靠近手术部位的压力情形导致闭塞打开的及早检测,且因此实现对闭塞涌动的预防的及早响应。在一些实施方案(未示出)中,压力传感器392沿着抽吸路径375定位于泵360和近端315之间。
在另一实施方案中,冲洗系统335包括可选的分流线和冲洗阀396(以虚线示出),冲洗阀396可以是可变控制阀。在一个实施方案中,阀是压电电子阀。然而,也可使用其它阀。阀396可用以使泵下游的冲洗流体流出到抽吸阀390下游的抽吸线。阀396也可由控制器控制且可被调整来影响通过冲洗线的流体流量。例如,当抽吸阀关闭以影响IOP时,阀396可打开以准许流体流动以继续通过冲洗线。当抽吸阀390被控制时,此也可减小IOP峰值的可能性。
图4说明操作流体子系统110的示例性方法。所述方法大体上由参考数字410指代。使用方法410,流体子系统110可检测系统中的压力偏差(例如,可能因为闭塞涌动而出现的压力偏差),且可迅速地行动以阻遏闭塞涌动的影响。例如,流体子系统110可使用来自传感器392的信息来检测因压力的改变而产生的堵塞的尖端,以作为眼睛中的IOP的指示符。在检测到堵塞(基于来自传感器392的压力读数或IOP信息)后,可使用泵360和抽吸阀390来调整抽吸和冲洗流量,以减小后闭塞涌动的影响。通过传感器392进行的IOP信息的持续检测可通过减小伴随后闭塞涌动而出现的压力偏差的影响而导致较一致且可预测的白内障超声乳化手术。也就是说,通过立即对压力偏差作出响应。
参看图4,在步骤420处,外科医生设置控制台上的目标IOP和/或所期望的流量。控制器405激活泵360以使冲洗流体355流动通过冲洗导管340且使抽吸流体385流动通过抽吸导管370。
在步骤425处,控制器405从抽吸传感器392接收信息且确定IOP是否在所设置的IOP处或所设置的IOP的范围内。根据此,系统可计算或还可直接测量流量。如果IOP在所期望的范围内,系统继续测量IOP,如步骤430处指示。应注意,最佳冲洗流量可以是特定目标值或可以是值的范围。如果IOP在所期望的范围之外,那么系统在步骤435处调整泵阀设置以更改流量,进而直接影响IOP。可基于所进行的测量来进行泵阀调整以增大流量或减小流量。在一些实施方案中,系统还调整对可选的冲洗阀396的设置以准许冲洗流体的至少一部分绕过IOP以减小IOP峰值的可能性。
在常规白内障超声乳化系统中,泵定位于底座外壳102内。相对长的长度的弹性导管(六英尺或更大)定位于抽吸和冲洗泵与眼睛之间。此相对长的长度的弹性导管具有许多顺应性-其可响应于真空压力的改变而伸展。此顺应性可导致如先前所描述的涌动。通过将与冲洗导管和抽吸导管两者介接的泵并入手柄112中(且将其放置得非常靠近眼睛)且在泵360与眼睛之间具有非常短的长度的非顺应性导管407,这些涌动的影响可减小或消除,因而导致较一致和可预测的手术。具有驱动冲洗和抽吸两者的手柄泵360的本文中公开的系统可减小导管顺应性,减少泵控制延迟时间,可减小流动的冲洗阻力,且/或可减少可因使用流体筒下游远处的压力换能器而导致的其它延迟。另外,因为泵360与冲洗导管340介接且使冲洗流体385流动通过冲洗路径375,所以不再需要来自底座外壳102的冲洗流体的主动冲洗或泵吸。另外,一些组件被此系统(例如,流体筒和主动冲洗系统)消除或替换。
然而,在一个实施方案中,手柄112的单一使用的可拆卸式手柄盒可替换流体筒,在常规系统中,流体筒暂时放置在底座外壳102中。而是,冲洗导管可从手柄112直接连接到可定位于固定瓶高度处的冲洗流体供应处350。
本领域技术人员将了解,本公开涵盖的实施方案不限于上文描述的特定示例性实施方案。就此而言,尽管已示出和描述说明性实施方案,但上述公开中预期广范围的修改、改变和取代。应理解,可在不脱离本公开的范围的情况下对上述内容作此些变化。因此,广泛地且按与本公开一致的方式解释所附权利要求书是恰当的。
Claims (26)
1.一种白内障超声乳化手柄,其包括:
主体,其具有远端和近端;
超声波尖端,其设置在所述主体的所述远端且被配置成用于从手术部位对抽吸流体进行抽吸;
设置在所述主体的所述远端的套管,其被配置成用于用冲洗流体冲洗所述手术部位;
可拆卸式盒,其设置在所述主体中且与所述超声波尖端和所述套管流体连通,其中所述盒包括:
抽吸导管,其被配置成用于含有所述抽吸流体;以及
冲洗导管,其被配置成用于含有所述冲洗流体;以及
泵,其设置在所述主体内且与所述抽吸导管和所述冲洗导管接合,使得在所述泵激活时,所述冲洗导管内的所述冲洗流体在朝向所述套管且远离所述近端的方向上流动,且所述抽吸导管内的所述抽吸流体在远离所述尖端且朝向所述近端的方向上流动。
2.如权利要求1所述的手柄,其还包括设置于所述主体内且被配置成用于与所述抽吸导管接合的阀,所述阀被配置成用于控制所述抽吸导管内的抽吸流体的流速。
3.如权利要求2所述的手柄,其还包括传感器,所述传感器设置于所述主体内且被配置成用于检测表示所述手术部位处的压力的流速或压力。
4.如权利要求3所述的手柄,其中,所述传感器在所述手柄内沿着所述冲洗导管、沿着所述抽吸导管定位或位于所述手柄主体的所述远端附近。
5.如权利要求3所述的手柄,其还包括与所述泵、所述阀和所述传感器通信的控制器,其中所述控制器基于从所述传感器接收的信息来控制所述泵和所述阀。
6.如权利要求1所述的手柄,其中所述泵是蠕动泵。
7.如权利要求2所述的手柄,其中所述阀位于所述泵与所述尖端之间。
8.如权利要求2所述的手柄,其中所述阀位于所述泵与抽吸流体的排液储存器之间,所述排液储存器与所述抽吸导管流体连通。
9.如权利要求1所述的手柄,其中所述冲洗导管包括第一横截面积,所述抽吸导管包括第二横截面积,所述第一横截面积大于所述第二横截面积。
10.如权利要求1所述的手柄,其中所述主体形成开口,以接纳所述盒。
11.一种冲洗手术部位且从所述手术部位抽吸流体的方法,其包括:
利用真空压力引导流体通过白内障超声乳化手柄中的抽吸导管,所述真空压力是由所述手柄中的与所述抽吸导管接合的泵产生的;
利用压力引导冲洗流体通过所述手柄中的冲洗导管,所述压力是由与所述冲洗导管接合的所述泵产生的;
通过激活所述手柄中的所述泵来增大通过所述冲洗导管的冲洗流体流量;
使用传感器来检测与手术部位相关联的压力;以及
通过基于所检测的压力调整抽吸阀的状态来控制眼内压力(IOP)。
12.如权利要求11所述的方法,其还包括通过基于所述压力调整泵速度来控制IOP。
13.如权利要求11所述的方法,其中所述传感器在所述手柄内沿着所述冲洗导管或沿着所述抽吸导管或沿着两者定位。
14.如权利要求11所述的方法,其中通过调整所述抽吸阀的所述状态来控制所述IOP包括:
基于所检测的压力确定抽吸流量应增大还是减小;
如果所述抽吸流量应增大,那么使用所述抽吸阀增大所述抽吸流量;以及
如果所述抽吸流量应减小,那么使用所述抽吸阀减小所述抽吸流量。
15.如权利要求12所述的方法,其中所述抽吸阀位于所述泵与所述手术部位之间。
16.如权利要求12所述的方法,其中所述抽吸阀位于所述泵与所述抽吸流体的排液储存器之间。
17.如权利要求12所述的方法,其还包括:
将与手术部位相关联的所检测的压力传达到控制器;
借助所述控制器控制所述泵的操作;以及
借助所述控制器控制所述抽吸阀的操作。
18.如权利要求11所述的方法,其中所述冲洗导管包括第一横截面积,所述抽吸导管包括第二横截面积,所述第一横截面积大于所述第二横截面积。
19.一种用于在眼部手术期间冲洗眼睛和从眼睛抽吸流体的抽吸和冲洗系统,其包括:
白内障超声乳化手柄,其包括:
可握取的主体,其具有远端和近端;
抽吸导管,其被配置成用于将抽吸流体输送离开手术部位;
冲洗导管,其被配置成用于朝所述手术部位输送冲洗流体;
设置于所述手柄内的泵,其中所述泵的至少一部分与所述抽吸导管和所述冲洗导管接合,使得在所述泵激活时,所述冲洗导管内的所述冲洗流体在朝所述手术部位的方向上流动,且所述抽吸导管内的所述抽吸流体在远离所述手术部位的方向上流动;
设置于所述手柄内的阀,其被配置成用于与所述抽吸导管介接,所述阀被配置成用于控制所述抽吸导管内的抽吸流体的流速;以及
传感器,其检测表示手术部位压力的压力;以及
控制器,其与所述泵、所述阀和所述传感器通信,
其中所述控制器被配置成用于基于来自所述传感器的信息来控制所述泵和所述阀的操作;且
其中所述控制器被配置成用于改变所述手术部位处的眼内压力(IOP)。
20.如权利要求19所述的系统,其中所述控制器被配置成用于通过调整泵速度或通过调整所述阀的状态或调整这两者来改变IOP。
21.如权利要求19所述的系统,其中所述阀位于所述泵与位于所述远端的尖端之间。
22.如权利要求19所述的系统,其中所述阀位于所述泵与所述抽吸流体的排液储存器之间。
23.如权利要求19所述的方法,其中所述传感器在所述手柄内沿着所述冲洗导管或沿着所述抽吸导管或沿这两者定位。
24.如权利要求19所述的系统,其中所述冲洗导管包括第一横截面积,所述抽吸导管包括第二横截面积,所述第一横截面积大于所述第二横截面积。
25.如权利要求19所述的系统,其中所述手柄还包括:
设置在所述主体中的可拆卸式盒,其具有所述抽吸导管的至少一部分和所述冲洗导管的至少一部分。
26.如权利要求19所述的系统,其包括第二控制阀,用于控制通过将冲洗线连接到抽吸线的线的流量,以便于IOP控制。
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US201261735637P | 2012-12-11 | 2012-12-11 | |
US61/735,637 | 2012-12-11 | ||
PCT/US2013/064202 WO2014092851A1 (en) | 2012-12-11 | 2013-10-10 | Phacoemulsification hand piece with integrated aspiration and irrigation pump |
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Also Published As
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AU2017245367A1 (en) | 2017-11-02 |
US20160354243A1 (en) | 2016-12-08 |
EP2874583A4 (en) | 2015-08-12 |
CA2882220A1 (en) | 2014-06-19 |
CN104640523B (zh) | 2017-07-04 |
WO2014092851A1 (en) | 2014-06-19 |
US20140163455A1 (en) | 2014-06-12 |
US10182940B2 (en) | 2019-01-22 |
JP6612618B2 (ja) | 2019-11-27 |
AU2013360295B2 (en) | 2017-07-27 |
EP2874583A1 (en) | 2015-05-27 |
AU2013360295A1 (en) | 2015-03-05 |
EP2874583B1 (en) | 2017-09-06 |
ES2642772T3 (es) | 2017-11-20 |
JP2015536758A (ja) | 2015-12-24 |
US9445943B2 (en) | 2016-09-20 |
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