CN112535792A - 用于操纵牵拉线的机构 - Google Patents

用于操纵牵拉线的机构 Download PDF

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CN112535792A
CN112535792A CN202010986223.5A CN202010986223A CN112535792A CN 112535792 A CN112535792 A CN 112535792A CN 202010986223 A CN202010986223 A CN 202010986223A CN 112535792 A CN112535792 A CN 112535792A
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catheter
thread
sleeve
shaft
pocket
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D·Q·吴-楚
S·艾尔
C·T·贝克勒
K·J·埃雷拉
J·T·凯斯
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
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    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133Tip steering devices
    • A61M25/0147Tip steering devices with movable mechanical means, e.g. pull wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/02General characteristics of the apparatus characterised by a particular materials

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Abstract

本发明题为“用于操纵牵拉线的机构”。本发明公开了一种导管,该导管包括用于使导管的远侧部分偏转的机构。导管可包括:偏转旋钮,该偏转旋钮包括第一螺纹;杆,该杆包括联接到第一螺纹的第二螺纹;以及牵拉线,该牵拉线连接到杆。杆可另外包括凹坑,牵拉线可经由可固定在凹坑中并附接到牵拉线的近侧端部的接合特征部连接到凹坑。接合特征部可包括接合(例如,卷曲)到牵拉线的近侧端部的第一套管和固定(例如,粘结)在凹坑中并接合(例如,卷曲)到第一套管的第二套管。

Description

用于操纵牵拉线的机构
共同未决的专利申请的交叉参考
本专利申请根据《美国法典》第35条第119款的规定要求2019年9月20日提交的美国临时专利申请62/903,560的优先权。该申请的全部内容全文以引用方式并入本文。
技术领域
本文所公开的主题涉及用于使导管的远侧部分偏转的机构。
背景技术
导管偏转技术及对其的改进,诸如人体工程学改进,仍然是医学领域中持续关注的问题。
发明内容
本发明公开了一种导管,该导管包括用于使导管的远侧部分偏转的机构。导管可包括:偏转旋钮,该偏转旋钮包括第一螺纹;杆,该杆包括联接到第一螺纹的第二螺纹;以及牵拉线,该牵拉线连接到杆。杆可包括第二螺纹可设置在其上的近侧部分和牵拉线可连接到其的远侧部分。因此,第二螺纹可设置在杆的外表面上。在各种实施方案中,第一螺纹可包括凹螺纹,并且第二螺纹可包括凸螺纹。在另选的实施方案中,第一螺纹可包括凸螺纹,并且第二螺纹可包括凹螺纹。
杆的远侧部分可包括凹坑,牵拉线可连接到凹坑。具体地,接合特征部可固定在凹坑中并附接到牵拉线的近侧端部。接合特征部可包括接合(例如,卷曲)到牵拉线的近侧端部的第一套管。接合特征部还可包括固定(例如,粘结)在凹坑中并接合(例如,卷曲)到第一套管的第二套管。在优选的实施方案中,第一套管包含不锈钢,并且第二套管包含黄铜。
偏转旋钮优选包括具有表面的纵向镗孔,使得第一螺纹可设置在表面上,并且使得杆的近侧部分可被设置成穿过纵向镗孔。偏转旋钮和杆可作为子组件的部件结合到导管的柄部中。子组件可另外包括固定部件,例如卡圈。导管的导管主体可在近侧端部处连接到固定部件,并且在可偏转远侧端部处连接到牵拉线的远侧端部。另外,杆可限定穿过该杆的内部通路,使得导管的附加结构(例如,冲洗管、引线)可延伸穿过内部通路。
因此,导管可根据其中导管的导管主体的远侧端部可偏转的方法和变型来使用。此类方法可包括旋转偏转旋钮、平移杆、以及移置牵拉线。旋转偏转旋钮的步骤可导致平移杆和移置牵拉线的步骤发生。
附图说明
虽然在说明书之后提供了特别指出和清楚地要求保护本文所述主题的权利要求书,但是据信通过对下面某些示例的描述并结合附图可以更好地理解本主题,附图中类似的参考标号表示相同的元件,并且在附图中:
图1示出了具有导管主体和具有偏转旋钮的柄部的导管;
图2示出了图1的导管主体的区段的横截面;
图3示出了导管柄部的子组件的透视图;
图4示出了图3的子组件的远侧端部的细部图,如图3中标记为“细节4”的圆圈所示;
图5示出了图3的子组件的分解视图;并且
图6示出了图3的子组件的旋钮部件的剖视图。
具体实施方式
应结合附图来阅读下面的具体实施方式,其中不同附图中相同元件的编号相同。附图(未必按比例绘制)示出所选择的实施方案,并不旨在限制本发明的范围。详细描述以举例的方式而非限制性方式示出本发明的原理。此描述将明确地使得本领域技术人员能够制备和使用本发明,并且描述了本发明的若干实施方案、适应型式、变型形式、替代形式和用途,包括目前据信是实施本发明的最佳方式。
如本文所用,针对任何数值或范围的术语“约”或“大约”指示允许部件或元件的集合实现如本文所述的其预期要达到的目的的合适的尺寸公差。更具体地,“约”或“大约”可指列举值的值±10%的范围,例如“约90%”可指81%至99%的值范围。另外,如本文所用,术语“患者”、“宿主”、“用户”和“受检者”是指任何人或动物受检者,并且不旨在将系统或方法局限于人使用,但本主题发明在人类患者中的使用代表优选的实施方案。
图1示出了导管10,该导管包括分别具有近侧端部14和远侧端部16的细长导管主体12。包括控制旋钮20的控制柄部18可设置在导管主体的近侧端部处。如图2中所见,导管主体12包括具有轴向或中心管腔22的细长管状构造。导管主体12是柔性的,即可偏转的,但是沿其长度基本上不可压缩。导管主体12可具有任何合适的构造并且可以由任何合适的材料制成。目前优选的构造包括由聚氨酯或
Figure BDA0002689348800000031
制成的外壁24。外壁24可包括不锈钢等的嵌入式编织网,以增加导管主体12的扭转刚度。
如图2中所示,牵拉线64可设置在导管主体12的管腔22中。牵拉线64被提供用于导管的一部分(例如,导管主体12的远侧端部)的偏转。因此,牵拉线64延伸穿过导管主体12,由此其可附接到管腔22中的导管的远侧端部。牵拉线64的近侧端部可锚固到控制柄部18,具体地锚固到可经由旋钮20的运动操纵的部件,如下所述。牵拉线64可由任何合适的金属制成,诸如不锈钢、钴铬、铍铜或镍钛诺。此外,其可涂覆有低摩擦材料,例如
Figure BDA0002689348800000032
以向牵拉线64赋予润滑性。牵拉线64可具有在例如约0.006英寸至约0.010英寸范围内的直径。
牵拉线64相对于导管主体12的纵向运动导致导管主体12的远侧端部偏转。此类运动可通过适当操纵控制柄部16来实现,如例如美国专利参考号34,502和5,897,529中所述,所述专利的全部公开内容以引用的方式并入本文。参考图3至图6描述了用于向牵拉线64赋予纵向运动的另一种机构。
图3示出了与可偏转导管一起使用的柄部机构的子组件100。子组件100包括控制旋钮120、杆122和固定部件,例如卡圈124。如图所示,旋钮120、杆122和卡圈124各自具有圆柱形形式,并且围绕子组件100的纵向轴线112彼此同心地布置。然而,实践所公开的主题不需要此类同心度。杆122可联接到控制旋钮120,使得旋钮120围绕轴线112的旋转导致线性运动,即,杆122相对于旋钮120沿轴线112或平行于轴线112的平移。卡圈124可相对于旋钮120和杆122保持静止状态,使得其可被配置成限制杆122围绕轴线112的旋转运动。因此,杆122可通过单向(例如,顺时针)旋转旋钮120而被牵拉到卡圈124中,并且通过以其他方式(例如,逆时针)旋转旋钮120而被推出卡圈124。
螺纹可用于经由向旋钮120施加旋转力来向杆122赋予线性运动。此类机构还防止施加到杆122的线性力导致旋钮120旋转。如图5中所见,其为子组件100的分解视图,其中为清楚起见移除了一些部件,凹螺纹126可在近侧端部140处设置在杆122的外表面146上。进一步参考图6,凸螺纹127可设置在旋钮120的内部表面上。例如,旋钮120可限定穿过其中的镗孔,并且凸螺纹可围绕镗孔的圆周设置。旋钮120和杆122经由它们的相应螺纹的联接允许由旋钮120的旋转导致杆122的线性运动。当然,可通过提供具有凸螺纹的杆122和具有凹螺纹的旋钮120来实现相同的因果关系。
杆122可连接到牵拉线164,在图4中最佳可见,其为杆122的远侧端部142的细部图。该连接可经由连接到远侧端部142的接合特征部130来实现。优选地,接合特征部130可包括介于一个和三个之间的套管,例如,两个套管。如图4中所见,第一套管132可附接(例如,卷曲)到牵拉线164上,并且第二套管134可附接(例如,卷曲)到第一套管132上。第二套管134可通过经由形成于远侧端部142中的凹坑136将其附接到杆122的远侧端部142而联接到杆122的远侧端部142。例如,第二套管134可粘结或胶合在凹坑136中。在优选的实施方案中,第一套管132可由不锈钢制成,并且第二套管134可由黄铜制成。接合特征部130在杆122和牵拉线164之间提供稳固的接头,因为凹坑136中的第二套管134的表面积基本上大于原本可直接附接在其中的线164的近侧部分的表面积。因此,凹坑136与第二套管134之间的摩擦力和其他粘结力大于线材164的远侧部分在没有套管134的情况下直接附接到杆122的摩擦力和其他粘结力。第一套管132还有助于接头的稳固性。如图所示,第一套管132具有圆柱形形式,这允许其卷曲到线164的近侧端部上,而不夹住它、损坏它或以其他方式导致应力集中,该应力集中可降低最大拉伸载荷或线164原本将能够处理直到失效的循环次数。
因为牵拉线164经由接合特征部130连接到杆122,所以由旋钮120的旋转实现的杆122的线性运动导致牵拉线164的对应线性运动或移置。通过将牵拉线164连接到另一个物体,可通过由旋钮120的旋转导致的牵拉线164的运动来操纵该物体。
导管的导管主体,诸如导管10的导管主体12,可在其近侧端部处连接到柄部子组件100,例如直接或间接地连接到固定部件,例如卡圈124。优选地,导管主体12的远侧端部14具有略小于或略大于卡圈124的外径的内部直径,以允许经由例如过盈配合、与粘合剂粘结或两者附接。因为杆122可通过卡圈124推进或回缩,所以杆122的外径小于卡圈124的内径,从而指示杆122的外径也小于导管主体12的内径。因此,牵拉线164可从其近侧端部14延伸穿过导管主体12至其远侧端部16。牵拉线164还可例如经由胶接锚固在导管主体12的远侧端部16处。因此,朝近侧平移牵拉线164导致导管主体12的远侧端部16例如朝图1中所示的虚线形状偏转。牵拉线164的后续远侧平移导致导管12的远侧端部16朝其初始形状返回。
杆122另外限定穿过杆的内部通路144。穿过柄部子组件100的附加导管结构可穿过通路144。例如,引线148和冲洗管150可被设置成穿过通路144。
凭借本文所示和所述的实施方案,申请人已设计出用于使用导管(诸如包括子组件100的导管10)的方法及其变型,该方法包括旋转偏转旋钮(例如,旋钮120)、平移杆(例如,杆122)以及移置牵拉线(例如,164)的步骤。在优选的变型中,旋转偏转旋钮的步骤导致平移杆和移置牵拉线的步骤发生,这导致导管主体的远侧端部偏转。
本文所述的任何示例或实施方案还可包括除上述那些之外或作为上述那些的替代的各种其它特征。本文所述的教导内容、表达、实施方案、示例等不应视为彼此独立。参考本文的教导内容,本文的教导内容可进行组合的各种合适方式对于本领域的技术人员而言将显而易见。
已经示出和描述了本文所包含的主题的示例性实施方案,可在不脱离权利要求的范围的情况下进行适当修改来实现本文所述的方法和系统的进一步改进。此外,其中上述方法和步骤表示按特定次序发生的特定事件,本文之意是某些特定步骤不必一定按所描述的次序执行,而是可以按任意次序执行,只要该步骤使实施方案能够实现其预期目的。因此,如果存在本发明的变型并且所述变型属于可在权利要求书中找到的本发明公开内容或等效内容的实质范围内,则本专利旨在也涵盖这些变型。许多此类修改对于本领域的技术人员将显而易见。例如,上文所述的示例、实施方案、几何形状、材料、尺寸、比率、步骤等均为例示性的。因此,权利要求书不应受到限于本书面说明和附图中示出的结构和操作的具体细节的限制。

Claims (23)

1.一种导管,包括:
偏转旋钮,所述偏转旋钮包括第一螺纹;
杆,所述杆包括近侧部分、远侧部分、以及联接到所述第一螺纹的第二螺纹;以及
牵拉线,所述牵拉线连接到所述杆的所述远侧部分。
2.根据权利要求1所述的导管,其特征在于,所述第二螺纹沿所述杆的所述近侧部分设置。
3.根据权利要求2所述的导管,其特征在于,所述第二螺纹设置在所述杆的外表面上。
4.根据权利要求2所述的导管,其特征在于,所述杆的所述远侧部分包括凹坑,所述牵拉线连接到所述凹坑。
5.根据权利要求4所述的导管,其特征在于,所述导管还包括接合特征部,所述接合特征部固定在所述凹坑中并附接到所述牵拉线的近侧端部。
6.根据权利要求5所述的导管,其特征在于,所述接合特征部包括接合到所述牵拉线的所述近侧端部的第一套管。
7.根据权利要求5所述的导管,其特征在于,所述第一套管卷曲到所述牵拉线的所述近侧端部上。
8.根据权利要求6所述的导管,其特征在于,所述接合特征部还包括第二套管,所述第二套管固定在所述凹坑中并且接合到所述第一套管。
9.根据权利要求8所述的导管,其特征在于,所述第二套管卷曲到所述第一套管上。
10.根据权利要求8所述的导管,其特征在于,所述第二套管粘结到所述凹坑。
11.根据权利要求10所述的导管,其特征在于,所述第一螺纹包括凹螺纹。
12.根据权利要求11所述的导管,其特征在于,所述第二螺纹包括凸螺纹。
13.根据权利要求10所述的导管,其特征在于,所述第一螺纹包括凸螺纹。
14.根据权利要求13所述的导管,其特征在于,所述第二螺纹包括凹螺纹。
15.根据权利要求10所述的导管,其特征在于,所述偏转旋钮包括具有表面的纵向镗孔,并且所述第一螺纹设置在所述表面上。
16.根据权利要求15所述的导管,其特征在于,所述杆的所述近侧部分的一部分被设置成穿过所述纵向镗孔。
17.根据权利要求16所述的导管,其特征在于,所述导管还包括柄部,所述柄部包括所述偏转旋钮、所述杆和固定部件。
18.根据权利要求17所述的导管,其特征在于,所述导管还包括导管主体,所述导管主体具有连接到所述固定部件的近侧端部和连接到所述牵拉线的远侧端部的可偏转远侧端部。
19.根据权利要求18所述的导管,其特征在于,所述杆限定穿过所述杆的内部通路,并且所述导管还包括延伸穿过所述内部通路的结构。
20.根据权利要求19所述的导管,其特征在于,所述结构包括冲洗管。
21.根据权利要求20所述的导管,其特征在于,所述结构包括线。
22.根据权利要求8所述的导管,其特征在于,所述第一套管包含不锈钢。
23.根据权利要求22所述的导管,其特征在于,所述第二套管包含黄铜。
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