WO2018161385A1 - 一种oct医用导管回抽装置 - Google Patents

一种oct医用导管回抽装置 Download PDF

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WO2018161385A1
WO2018161385A1 PCT/CN2017/078567 CN2017078567W WO2018161385A1 WO 2018161385 A1 WO2018161385 A1 WO 2018161385A1 CN 2017078567 W CN2017078567 W CN 2017078567W WO 2018161385 A1 WO2018161385 A1 WO 2018161385A1
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driven wheel
wheel
catheter
driving
medical catheter
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PCT/CN2017/078567
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English (en)
French (fr)
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蔡志岗
李佼洋
王福娟
王自鑫
贺谭斌
高峻
李百灵
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广州永士达医疗科技有限责任公司
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Publication of WO2018161385A1 publication Critical patent/WO2018161385A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0062—Arrangements for scanning
    • A61B5/0066—Optical coherence imaging

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  • the present invention relates to medical devices, and more particularly to an OCT medical catheter withdrawal device.
  • OCT optical coherence tomography
  • the probe can obtain the pathological information of a certain section of the detected tubular tissue through a circumferential circular scan, but the information displayed by a single section is often limited, which is not conducive to the accurate determination of the type and size of the lesion by medical personnel. .
  • the practical application mainly adopts a method of local three-dimensional reconstruction, that is, a pipeline stereoscopic image composed of multiple sections.
  • the OCT probe is required to move axially along the pipe.
  • most of the current methods of moving the probe are manual movement, and the amount of displacement is very inaccurate, which brings a lot of error data to the subsequent image forming calculation, and the image quality is poor, which greatly affects the use effect of the endoscope.
  • an object of the present invention to provide an OCT medical catheter withdrawal device that is computer controlled, electrically accurate, and capable of helping medical personnel to improve diagnostic accuracy.
  • An OCT medical catheter extraction device includes a catheter, a pumping structure and a driving member, the pumping structure includes a driving wheel and a first driven wheel, and the driving wheel is fixedly mounted to the driving member.
  • the conduit is located between the driving wheel and the first driven wheel, and is in contact with the driving wheel and the first driven wheel, and the driving member drives the driving wheel to rotate to push the catheter or Pull back.
  • the driving wheel and the first driven wheel are each provided with a groove
  • the conduit is located in the two grooves and is in contact with the two grooves.
  • the outer surface of the driving wheel is made of a material having a coefficient of friction greater than 0.5.
  • the outer surface of the driving wheel is made of synthetic rubber or segregated polyvinyl chloride or asbestos.
  • the end of the duct that does not enter the human body is provided with a zigzag structure
  • the outer surface of the driving wheel groove is provided with a zigzag structure
  • the sawtooth structure of the duct and the serration of the outer surface of the driving wheel groove The structural fit causes the drive wheel to move the catheter.
  • the OCT medical catheter withdrawal device further includes a support auxiliary structure, the support auxiliary structure includes a second driven wheel and a third driven wheel, and the second driven wheel and the third driven wheel are both a groove is disposed between the second driven wheel and the third driven wheel, and the groove of the second driven wheel and the third driven wheel The groove contact facilitates guiding the direction of movement of the catheter.
  • the driving wheel and the second driven wheel are located on one side of the duct, and the driving wheel and the second driven wheel are movable in a direction perpendicular to the duct.
  • the outer surfaces of the first driven wheel, the second driven wheel and the third driven wheel are made of a material having a friction coefficient of less than 0.5.
  • the outer surfaces of the first driven wheel, the second driven wheel and the third driven wheel are made of polytetrafluoroethylene or polyvinyl chloride or high density polyethylene.
  • the OCT medical catheter withdrawal device further includes a transmission structure, the transmission structure includes a first gear and a second gear, the first gear is fixedly mounted to the driving member, and the second gear Fixedly mounted to the driving wheel, the first gear meshes with the second gear.
  • the OCT medical catheter withdrawal device catheter of the present invention is located between the driving wheel and the first driven wheel, and is in contact with the driving wheel and the first driven wheel, and the driving member drives the driving wheel to rotate to push or withdraw the catheter. And supporting the auxiliary structure to guide the direction of movement of the catheter.
  • FIG. 1 is a perspective view of an OCT medical catheter withdrawal device of the present invention.
  • FIG 2 is another perspective view of the OCT medical catheter withdrawal device of the present invention.
  • FIG 3 is another perspective view of the OCT medical catheter withdrawal device of the present invention.
  • a component when referred to as being “fixed” to another component, it can be directly on the other component or the component can be present.
  • a component When a component is considered to "connect” another component, it can be directly connected to another component or possibly a central component.
  • a component When a component is considered to be “set to” another component, it can be placed directly on another component or possibly with a centered component.
  • the terms “vertical,” “horizontal,” “left,” “right,” and the like, as used herein, are for illustrative purposes only.
  • an OCT medical catheter extraction device 100 includes a catheter 10 , a pumping structure 20 , a support assist structure 30 , a transmission structure 40 , and a driving member 50 .
  • the pumping structure 20 includes a driving wheel 22 and a first driven wheel 24.
  • the outer ring of the driving wheel 22 is provided with a recess 220 and a mounting hole 222 is defined in the center.
  • the outer ring of the first driven wheel 24 is provided with a recess 240 and a mounting hole 242 is defined in the center.
  • the outer surface of the drive wheel 22 is made of a material having a coefficient of friction greater than 0.5.
  • the outer surface of the drive wheel 22 is made of synthetic rubber or segregated polyvinyl chloride or asbestos.
  • the outer surface of the first driven wheel 24 is made of a material having a coefficient of friction of less than 0.5.
  • the outer surface of the first driven wheel 24 is made of polytetrafluoroethylene or polyvinyl chloride or high density polyethylene.
  • the support assisting structure 30 includes a second driven wheel 32 and a third driven wheel 34.
  • the outer ring of the second driven wheel 32 is provided with a recess 320 and a mounting hole 322 is defined in the center.
  • the outer ring of the third driven wheel 34 is provided with a recess 340 and a mounting hole 342 is defined in the center.
  • the outer surfaces of the second driven wheel 32 and the third driven wheel 34 are made of a material having a coefficient of friction of less than 0.5.
  • the outer surfaces of the second driven wheel 32 and the third driven wheel 34 are made of polytetrafluoroethylene or polyvinyl chloride or high density polyethylene.
  • the transmission structure 40 includes a first gear 42 and a second gear 44.
  • the driving member 50 is a micro motor.
  • the first gear 42 is fixedly mounted to the driving member 50.
  • the second gear 44 is fixedly mounted to the driving wheel 22 .
  • the first gear 42 meshes with the second gear 44.
  • the catheter 10 is located at the main Between the moving wheel 22 and the first driven wheel 24 and in contact with the edge of the groove 220 and the groove 240, the conduit 10 is clamped between the driving wheel 22 and the first driven wheel 24 between.
  • One end of the duct 10 is located between the second driven wheel 32 and the third driven wheel 34 and is received in the groove 320 and the groove 340.
  • the groove 320 and the groove 340 protect the catheter 10 to reduce friction.
  • the drive member 50 drives the drive wheel 22 to rotate, and the drive wheel 22 pushes or withdraws the catheter 10 by friction.
  • the driving wheel 22 and the second driven wheel 32 are located on one side of the duct 10, and the driving wheel 22 and the second driven wheel 32 can be vertically along the duct 10 according to the needs of medical personnel. Moving in the direction of the catheter 10. The maximum distance that the driving wheel 22 and the second driven wheel 32 move is the radius of the duct 10.
  • the end of the duct 10 is provided with a sawtooth structure
  • the outer surface of the groove of the driving wheel 22 is provided with a zigzag structure, and the saw tooth structure of the duct 10 and the groove of the driving wheel 22 The serrated structure of the surface cooperates to cause the drive wheel 22 to move the catheter 10.

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  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • Media Introduction/Drainage Providing Device (AREA)
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Abstract

一种OCT医用导管回抽装置（100），包括一导管（10）、一回抽结构（20）及一驱动件（50），回抽结构（20）包括一主动轮（22）及一第一从动轮（24），主动轮（22）固定安装于驱动件（50），导管（10）位于主动轮（22）及第一从动轮（24）之间，并与主动轮（22）及第一从动轮（24）接触，驱动件（50）带动主动轮（22）转动使导管（10）被推送或回抽。相比现有技术，该OCT医用导管回抽装置（100）的导管（10）位于主动轮（22）及第一从动轮（24）之间，并与主动轮（22）及第一从动轮（24）接触，驱动件（50）带动主动轮（22）转动使导管（10）被推送或回抽，并且支撑辅助结构（30）能够引导导管（10）的移动方向。

Description

一种OCT医用导管回抽装置 技术领域
本发明涉及医疗器械，尤其是涉及一种OCT医用导管回抽装置。
背景技术
光学相干层析技术(Optical coherence Tomography,OCT)是一种高分辨率成像技术，该技术是基于低相干光干涉原理，并与共焦显微技术相结合，可检测生物组织不同深度层对入射弱相干光的后向散射波回波时间延迟及回波强度信号，通过扫描得到样品二维或者三维的高分辨率微观组织结构，从而获得被测样品在体无损的断层层析图像。
在OCT技术中，其探头通过周向环形扫描，可以全角度获取所探测管状组织某一截面的病理信息，但单个截面所表现的信息往往较为有限，不利于医疗人员精准确定病灶的类型和大小。为提高病灶确诊率，实际应用中主要采取一种局部三维重构的方法，即多截面构成的管道式立体图像。为实现这一目的，需要OCT探头沿管道轴向移动。但是，目前移动探头的方式大多是手动移动，移动位移量很不准确，给后续的图像成形计算带来许多误差数据，图像质量较差，大大影响了内窥镜的使用效果。
发明内容
为了克服现有技术的不足，本发明的目的在于提供一种由计算机控制、电动的可精确移动、能帮助医疗人员提升诊断准确率的OCT医用导管回抽装置。
本发明的目的采用以下技术方案实现：
一种OCT医用导管回抽装置，包括一导管、一回抽结构及一驱动件，所述回抽结构包括一主动轮及一第一从动轮，所述主动轮固定安装于所述驱动件，所述导管位于所述主动轮及所述第一从动轮之间，并与所述主动轮及所述第一从动轮接触，所述驱动件带动所述主动轮转动使所述导管被推送或回抽。
优选的，所述主动轮及所述第一从动轮均设有一凹槽，所述导管位于所述两凹槽之中并与所述两凹槽接触。
优选的，所述主动轮外表面由摩擦系数大于0.5的材料制成。
优选的，所述主动轮外表面由合成橡胶或偏聚二氯乙烯或石棉制成。
优选的，所述导管不会进入人体的一端设有锯齿状结构，所述主动轮凹槽外表面设有锯齿状结构，所述导管的锯齿状结构与所述主动轮凹槽外表面的锯齿状结构配合使所述主动轮带动所述导管移动。
优选的，所述OCT医用导管回抽装置还包括一支撑辅助结构，所述支撑辅助结构包括一第二从动轮及一第三从动轮，所述第二从动轮及所述第三从动轮均设有一凹槽，所述导管位于所述第二从动轮及所述第三从动轮之间，并与所述第二从动轮的凹槽及所述第三从动轮 的凹槽接触以便于引导所述导管的移动方向。
优选的，所述主动轮及所述第二从动轮位于所述导管一侧，所述主动轮及所述第二从动轮能够沿一垂直于所述导管的方向移动。
优选的，所述第一从动轮、第二从动轮及第三从动轮外表面由摩擦系数小于0.5的材料制成。
优选的，所述第一从动轮、第二从动轮及第三从动轮外表面由聚四氟乙烯或聚氯乙烯或高密度聚乙烯制成。
优选的，所述OCT医用导管回抽装置还包括一传动结构，所述传动结构包括一第一齿轮及一第二齿轮，所述第一齿轮固定安装于所述驱动件，所述第二齿轮固定安装于所述主动轮，所述第一齿轮与所述第二齿轮啮合。
相比现有技术，本发明OCT医用导管回抽装置导管位于主动轮及第一从动轮之间，并与主动轮及第一从动轮接触，驱动件带动主动轮转动使导管被推送或回抽，并且支撑辅助结构能够引导导管的移动方向。
附图说明
图1为本发明OCT医用导管回抽装置的一立体图。
图2为本发明OCT医用导管回抽装置的另一立体图。
图3为本发明OCT医用导管回抽装置的又一立体图。
图中：100、OCT医用导管回抽装置；10、导管；20、回抽结构；22、主动轮；220、240、320、340、凹槽；222、242、322、342、安 装孔；24、第一从动轮；30、支撑辅助结构；32、第二从动轮；34、第三从动轮；40、传动结构；42、第一齿轮；44、第二齿轮；50、驱动件。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，当组件被称为“固定于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“连接”另一个组件，它可以是直接连接到另一个组件或者可能同时存在居中组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
请参阅图1至图3，一种OCT医用导管回抽装置100包括一导管10、一回抽结构20、一支撑辅助结构30、一传动结构40及一驱动件50。
所述回抽结构20包括一主动轮22及一第一从动轮24。所述主动轮22外圈设有一凹槽220并且中央设有一安装孔222。所述第一从动轮24外圈设有一凹槽240并且中央设有一安装孔242。所述主动轮22外表面由摩擦系数大于0.5的材料制成。在一实施例中，所述主动轮22外表面由合成橡胶或偏聚二氯乙烯或石棉制成。所述第一从动轮24外表面由摩擦系数小于0.5的材料制成。优选的，所述第一从动轮24外表面由聚四氟乙烯或聚氯乙烯或高密度聚乙烯制成。
所述支撑辅助结构30包括一第二从动轮32及一第三从动轮34。所述第二从动轮32外圈设有一凹槽320并且中央设有一安装孔322。所述第三从动轮34外圈设有一凹槽340并且中央设有一安装孔342。所述第二从动轮32及所述第三从动轮34外表面由摩擦系数小于0.5的材料制成。优选的，所述第二从动轮32及所述第三从动轮34外表面由聚四氟乙烯或聚氯乙烯或高密度聚乙烯制成。
所述传动结构40包括一第一齿轮42及一第二齿轮44。所述驱动件50为一微型马达。
组装所述OCT医用导管回抽装置100时，所述第一齿轮42固定安装于所述驱动件50。所述第二齿轮44固定安装于所述主动轮22。所述第一齿轮42与所述第二齿轮44啮合。所述导管10位于所述主 动轮22与所述第一从动轮24之间并与所述凹槽220及所述凹槽240边缘接触使所述导管10被夹持于所述主动轮22与所述第一从动轮24之间。所述导管10一端位于所述第二从动轮32及所述第三从动轮34之间并收容于所述凹槽320及所述凹槽340。所述凹槽320及所述凹槽340保护所述导管10，减少摩擦。
使用所述OCT医用导管回抽装置100时，所述驱动件50驱使所述主动轮22转动，所述主动轮22通过摩擦带动所述导管10推送或回抽。此时所述主动轮22及所述第二从动轮32位于所述导管10一侧，所述主动轮22及所述第二从动轮32根据医疗人员的需要能够相对所述导管10沿一垂直于所述导管10的方向移动。所述主动轮22及所述第二从动轮32移动的最大距离为所述导管10的半径。
在另一实施例中，所述导管10一端设有锯齿状结构，所述主动轮22凹槽外表面设有锯齿状结构，所述导管10的锯齿状结构与所述主动轮22凹槽外表面的锯齿状结构配合使所述主动轮22带动所述导管10移动。
对本领域的技术人员来说，可根据以上描述的技术方案以及构思，做出其它各种相应的改变以及形变，而所有的这些改变以及形变都应该属于本发明权利要求的保护范围之内。

Claims (10)

  1. 一种OCT医用导管回抽装置，包括一导管及一回抽结构，其特征在于：所述OCT医用导管回抽装置还包括一驱动件，所述回抽结构包括一主动轮及一第一从动轮，所述主动轮固定安装于所述驱动件，所述导管位于所述主动轮及所述第一从动轮之间，并与所述主动轮及所述第一从动轮接触，所述驱动件带动所述主动轮转动使所述导管被推送或回抽。
  2. 根据权利要求1所述的OCT医用导管回抽装置，其特征在于：所述主动轮及所述第一从动轮均设有一凹槽，所述导管位于所述两凹槽之中并与所述两凹槽接触。
  3. 根据权利要求2所述的OCT医用导管回抽装置，其特征在于：所述主动轮外表面由摩擦系数大于0.5的材料制成。
  4. 根据权利要求3所述的OCT医用导管回抽装置，其特征在于：所述主动轮外表面由合成橡胶或偏聚二氯乙烯或石棉制成。
  5. 根据权利要求2所述的OCT医用导管回抽装置，其特征在于：所述导管一端设有锯齿状结构，所述主动轮凹槽设有锯齿状结构，所述导管的锯齿状结构与所述主动轮凹槽的锯齿状结构配合使所述主动轮带动所述导管移动。
  6. 根据权利要求1所述的OCT医用导管回抽装置，其特征在于：所述OCT医用导管回抽装置还包括一支撑辅助结构，所述支撑辅助结构包括一第二从动轮及一第三从动轮，所述第二从动轮及所述第三从动轮均设有一凹槽，所述导管位于所述第二从动轮及所述第三从动轮之间，并与所述第二从动轮的凹槽及所述第三从动轮的凹槽接触以 便于引导所述导管的移动方向。
  7. 根据权利要求6所述的OCT医用导管回抽装置，其特征在于：所述主动轮及所述第二从动轮位于所述导管一侧，所述主动轮及所述第二从动轮能够相对所述导管朝一远离所述导管的方向移动。
  8. 根据权利要求6所述的OCT医用导管回抽装置，其特征在于：所述第一从动轮、第二从动轮及第三从动轮外表面由摩擦系数小于0.5的材料制成。
  9. 根据权利要求8所述的OCT医用导管回抽装置，其特征在于：所述第一从动轮、第二从动轮及第三从动轮外表面由聚四氟乙烯或聚氯乙烯或高密度聚乙烯制成。
  10. 根据权利要求1所述的OCT医用导管回抽装置，其特征在于：所述OCT医用导管回抽装置还包括一传动结构，所述传动结构包括一第一齿轮及一第二齿轮，所述第一齿轮固定安装于所述驱动件，所述第二齿轮固定安装于所述主动轮，所述第一齿轮与所述第二齿轮啮合。
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