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WO2013064060A1 - 一种医疗内窥镜用软管 - Google Patents

一种医疗内窥镜用软管 Download PDF

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Publication number
WO2013064060A1
WO2013064060A1 PCT/CN2012/083796 CN2012083796W WO2013064060A1 WO 2013064060 A1 WO2013064060 A1 WO 2013064060A1 CN 2012083796 W CN2012083796 W CN 2012083796W WO 2013064060 A1 WO2013064060 A1 WO 2013064060A1
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WIPO (PCT)
Prior art keywords
channel
cross
section
working channel
hose
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Ceased
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PCT/CN2012/083796
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English (en)
French (fr)
Inventor
龙刚
龙学平
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Individual
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Individual
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Publication date
Priority claimed from CN2011204256822U external-priority patent/CN202446051U/zh
Priority claimed from CN201120428350XU external-priority patent/CN202458285U/zh
Priority claimed from CN2011204378834U external-priority patent/CN202313702U/zh
Priority claimed from CN 201110349536 external-priority patent/CN102406495B/zh
Application filed by Individual filed Critical Individual
Publication of WO2013064060A1 publication Critical patent/WO2013064060A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments

Definitions

  • the present invention relates to a medical device, and more particularly to a hose for a medical endoscope. Background technique
  • the endoscope inner tube generally adopts a multi-cavity hose, and completely separates the working channel, the image and the illumination sensor channel, the drainage channel, and the water injection channel, and the design is encountered when the endoscope requirements are more slender.
  • multi-cavity hoses can meet four or more channels at the same time, the minimum requirements for the outer diameter of the multi-cavity hose and the size of each channel (inner diameter), is not conducive to For use with more slim endoscopes, and with a constant inner diameter, the multi-lumen hose is designed so that each lumen has a smaller internal diameter and is surgically operated for advancement, retraction, and rotation of the instrument.
  • An object of the present invention is to provide a medical endoscope hose which has the characteristics of operating a single cylinder and facilitating control of a steering angle in order to overcome the deficiencies of the above background art.
  • a medical endoscope hose having a passage penetrating along its axial direction, characterized in that: the passage is divided into a control steering passage, an image and an illumination sensor passage And a working channel having a cross-sectional area greater than a cross-sectional area of the control steering channel or the image and illumination sensor channel.
  • the cross section of the working channel consists of a circular section through the surgical instrument and a profiled section on both sides of the circular section that facilitates the flow of liquid from the surgical instrument.
  • the circular arc portion of the circular cross-section of the working channel is composed of two circular arcs which are respectively arranged symmetrically with the center of the working channel, and the curved portion of the working-shaped cross-section of the working wheel is the above Two sections of two circular arc lines corresponding to the two end points of the end point, the distance between any point on the two sections of the curve is larger than the center of the working channel The radius of the arc line.
  • the two-section curve is composed of an elliptical line symmetrically arranged with the center of the working channel, and the elliptical line is smoothly connected with the circular arc line.
  • the cross section of the control steering channel and the image and illumination sensor channels are both circular.
  • the cross-sections of the control diverting passage, the image and the illumination sensor channel and the working channel are circumferentially distributed along the cross section of the hose, respectively.
  • the invention has more scientific design and more convenient manufacture under the condition that the endoscope is more slender.
  • the design of the three-chamber tube can simultaneously insert four channels at the same time as the four-chamber tube, and can satisfy the inner cavity.
  • the slimmer inner diameter of the speculum is conducive to the use of a slimmer endoscope.
  • the three-channel design of the present invention allows the working channel to share the device with the water injection, the device and the effluent, or the device and the water injection and the effluent sharing channel.
  • the inner diameter of the working channel has a relatively large cross-sectional area.
  • the action range of the instrument for advancing, retreating, and rotating is large, and the device is flexible in use and high in accuracy. More importantly, the present invention can greatly improve the quality of the operation, reduce the operation time and the suffering of the patient through the working channel and through three surgical instruments of different sizes and different uses.
  • Embodiment 1 is a schematic cross-sectional structural view of Embodiment 1 of the present invention.
  • Figure 2 is a schematic cross-sectional view showing a second embodiment of the present invention.
  • a hose for a medical endoscope has a channel extending through an axial direction thereof, and the channel is divided into a control steering channel 1 , an image and an illumination.
  • the sensor channel 2 and the working channel 3 have a cross section larger than the cross section of the control steering channel 1 or the image and illumination sensor channel 2.
  • Place The cross section of the working channel 3 is a profiled section composed of a circular arc and a curved connection.
  • the cross section of the control steering channel 1 and the image and illumination sensor channel 2 are both circular.
  • the cross sections of the three channels are each distributed circumferentially along the cross section of the hose.
  • Embodiment 2 Referring to FIG. 2, the embodiment is basically the same as the embodiment, except that the cross section of the working channel 3 is made of a circular cross section through a surgical instrument and facilitates the flow of liquid from the surgical instrument. It consists of a profiled section on both sides of the circular section.
  • the circular arc portion of the circular cross-section of the working channel 3 is composed of two circular arc lines 3.1 which are respectively arranged symmetrically with the center of the working channel, and the curved portion of the working channel 3 shaped cross-section rounded line is The two arcs of the two arcs correspond to the two sections of the end point. The distance between any point on the two sections of the curve is greater than the radius of the arc line, but is included in the virtual large circle S below.
  • the two-section curve of the present invention is composed of an elliptical line 3.2 symmetrically arranged with the center of the working channel 3, and the elliptical line 3.2 is smoothly connected with the circular arc line 3.1, which also ensures that the working channel is easy to locate.
  • the radius of the virtual large circle S is R (the virtual large circle S is a virtual curved surface with at least four tangent points for controlling the steering channel 1, the image and the illumination sensor channel 2 and the working channel 3.
  • R is as large as possible
  • wall thickness h is as small as possible
  • h ⁇ 0 is the radius of the virtual large circle S.
  • R and h is the outer diameter of the shaped hose); the radius of the two inscribed small circles 01, 02 respectively For rl, r2 (two inscribed small circles 01, 02 are respectively controlling the cross section of the steering channel 1 and the image and illumination sensor channel 2); the radius of the virtual small circle 0 is r (the virtual small circle 0 is the working channel 3 Circular cross section); circumscribed ellipse concentric with the virtual small circle (the circumscribed ellipse is the curved part of the working channel 3 shaped cross-section rounded line), the distance between the elliptical center and the virtual large circle center is the long semi-axis , the short semi-axis is; the vertical distance between the ellipse and the two small circles 01, 02 is hl, h2.
  • the distance Z between the center of the ellipse and the center of the virtual circle is as small as possible.
  • the actual demand must be met.
  • Circles 01 and 02 cannot be tangent and intersect with the ellipse, ie hl ⁇ 0, h2 ⁇ 0.
  • the short axis b of the ellipse is equal to the radius of the virtual small circle 0, the area of the circle 0 is the largest, and should satisfy the cross-sectional area of the working instrument used in the working channel.
  • the two shaped cross-sections of this embodiment can pass through the liquid (this can make the blood, body fluid, and rinsing liquid flow more fully during the operation, the rinsing is easier, the flow rate is larger), and the surgical device can be used to make the operation more complete.
  • the circular cross section of this embodiment is used to pass through a surgical instrument and to position the surgical instrument.
  • the three channels of the three-cavity hose of the present invention can have different specifications in the channel size according to different needs, and the three channels are the working channel, the control steering channel, the image and the illumination sensor channel.
  • the core part of the invention In contrast to a four-chamber hose, the working channel combines the working channels of the four-chamber hose and the flushing drainage channels into one.
  • Control one-way (traction) wire (or multi-strand wire rope) in the steering channel directly control the bending direction and angle of the front end through the control device at the back end of the soft mirror; place image and image and illumination sensor or fiber in the image and illumination sensor channel
  • the image and illumination sensor can also be cured in the image and illumination sensor channels, and its focal length (and image sharpness) can also be adjusted through the rear control.
  • the working channel can be equipped with various instruments such as laser fiber, stone basket, bipolar electrocoagulation forceps (shear), biopsy forceps, guide wire and so on.
  • the design of the three-cavity shaped channel not only increases the diameter and cross-sectional area of the working channel, but also facilitates the operation of one to three instruments during the operation, and the caliber of the large-section channel allows the blood, body fluid, and rinsing liquid to reflow during the operation. More fully, the flushing is easier, the flow is larger, the channel is less prone to blockage, and the operation is more convenient.
  • the working channel can pass through a device with a large diameter and up to three. Its clinical significance is that it can solve many technical bottlenecks caused by the size of the pipe. It can be used alone or combined with a hard sheath into a soft and hard inner body. Use with a speculum.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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Abstract

一种医疗内窥镜用软管，其开有沿轴向贯穿的通道。所述的通道分为控制转向通道（1）、图像及照明传感器通道（2）和工作通道（3），所述工作通道（3）的横截面面积大于控制转向通道（1）或图像及照明传感器通道（2）的横截面面积。本发明将工作通道和冲洗通道融合为一个通道，横截面积更大，操作时可供活动的范围较大，器械操作更为方便，流量更大，且因三腔道的设计，制作更为简单，造价较低，节约成本，易于推广。

Description

一种医疗内窥镜用软管
技术领域
本发明涉及医疗器械， 具体地说是一种医疗内窥镜用软管。 背景技术
目前的内窥镜内管一般采用多腔软管， 将工作通道、 图像及照明传感器通道、 引流 通道、 注水通道完全隔离开， 在内窥镜要求更为纤细的情况下， 就会遇到设计和制造上 的困难， 同等条件下， 多腔软管要满足能同时穿插四个或更多腔道， 对多腔软管的外径 及各腔道尺寸 （内径）有最低的要求， 不利于为更纤细的内窥镜所使用， 且在内径尺寸 一定的情况下， 多腔软管的设计使得每个腔道的各自的内径比较小， 手术操作起来， 可 供器械的前进、 后退以及旋转等动作活动范围较小， 器械使用不够灵活， 无法满足临床 手术需求。 更为重要的是， 规则腔道无法保证注水量， 及临床手术的更多要求， 使得手 术操作的精确度不高， 手术时间持续过长， 同时由于腔道尺寸的技术瓶颈， 给手术的安 全带来隐患。 发明内容
本发明的目的是为了克服上述背景技术的不足， 提供一种医疗内窥镜用软管， 使其 具有操作筒单、 方便控制转向角度的特点。
本发明的技术方案是这样实现的： 一种医疗内窥镜用软管， 它开有沿其轴向贯穿的 通道， 其特征在于： 所述的通道分为控制转向通道、 图像及照明传感器通道和工作通道， 所述工作通道的横截面面积大于控制转向通道或图像及照明传感器通道的横截面面积。
优选地， 所述工作通道的横截面由能通过手术器械的圓形截面和能方便液体从手术 器械旁流过的位于圓形截面两侧面的异形截面组成。
优选地， 所述工作通道圓形截面轮廊线的圓弧部分由两段分别与工作通道中心为圓 心对称布置的圓弧线构成， 所述工作通道异形截面轮廊线的曲线部分为将上述两段圓弧 线两两对应端点连接起来的两段曲线， 该两段曲线上任何一点距工作通道中心的距离大 于所述圓弧线的半径。
优选地， 所述两段曲线为与工作通道中心对称布置的椭圓线组成， 椭圓线与圓弧线 平滑过渡连接。
优选地， 所述控制转向通道和图像及照明传感器通道的横截面均为圓形。
优选地， 所述控制转向通道、 图像及照明传感器通道和工作通道的横截面分别沿软 管横截面周向分布。
本发明在内窥镜要求更为纤细的情况下， 设计更科学， 制造更方便， 同等条件下， 三腔管的设计相较于四腔管既能同时穿插四个腔道， 又能满足内窥镜内径更为纤细的要 求， 有利于为更纤细的内窥镜所使用。 在内径尺寸一定的情况下， 本发明三腔道的设计 使得工作通道为器械与注水共用、 器械与出水共用或器械与注水、 出水共用通道。 工作 通道的内径截面积比较大， 手术操作时， 可供器械的前进、 后退以及旋转等动作活动范 围较大， 器械使用灵活， 操作的精确度高。 更为重要的是， 本发明可以经由工作通道， 同时穿过三把不同尺寸、 不同用途的手术器械， 大大提升手术质量、 减少手术时间及患 者痛苦。 附图说明
图 1为本发明实施例 1的横截面结构示意图；
图 2为本发明实施例 2的横截面结构示意图。
图中： 1-控制转向通道， 2-图像及照明传感器通道， 3-工作通道， 3.1-圓弧线， 3.2- 椭圓线。 具体实施方式
下面结合附图及实施例对本发明作进一步的详细描述， 但该实施例不应理解为对本 发明的限制。
实施例 1 : 参照图 1所示， 本实施例提供的一种医疗内窥镜用软管， 它开有沿其轴 向贯穿的通道，所述的通道分为控制转向通道 1、图像及照明传感器通道 2和工作通道 3, 所述工作通道 3的横截面大于控制转向通道 1或图像及照明传感器通道 2的横截面。 所 述工作通道 3的横截面为由圓弧和曲线连接组成的异形截面。 所述控制转向通道 1和图 像及照明传感器通道 2的横截面均为圓形。 所述的三个通道的横截面分别沿软管横截面 周向分布。
实施例 2: 参照图 2所示， 本实施例与实施例基本相同， 不同之处在于所述工作通 道 3的横截面由能通过手术器械的圓形截面和能方便液体从手术器械旁流过的位于圓形 截面两侧面的异形截面组成。 所述工作通道 3圓形截面轮廊线的圓弧部分由两段分别与 工作通道中心为圓心对称布置的圓弧线 3.1构成， 所述工作通道 3异形截面轮廊线的曲 线部分为将上述两段圓弧线两两对应端点连接起来的两段曲线， 该两段曲线上任何一点 距工作通道中心的距离大于所述圓弧线的半径， 但又包含在下述虚拟大圓 S内。
为了便于加工， 本发明所述两段曲线为与工作通道 3中心对称布置的椭圓线 3.2组 成， 椭圓线 3.2与圆弧线 3.1平滑过渡连接， 这还可保证工作通道便于定位。
参见图 2, 设： 虚拟大圓 S的半径为 R (所述虚拟大圓 S为与控制转向通道 1、 图像 及照明传感器通道 2和工作通道 3至少有四个切点的一个虚拟曲面。 在工艺能够满足的 前提下， R尽可能大，壁厚 h尽可能小，且 h≠0。而 R与 h之和就是该异形软管的外径 ）； 两个内切小圓 01、 02的半径分别为 rl、 r2 (两个内切小圓 01、 02分别为控制转向通 道 1和图像及照明传感器通道 2的横截面）；虚拟小圓 0的半径为 r (虚拟小圓 0为工作 通道 3的圓形截面）； 与虚拟小圓同心的外切椭圓（外切椭圓为工作通道 3异形截面轮廊 线的曲线部分）， 椭圓中心与虚拟大圓圓心的距离为厶 长半轴为 "， 短半轴为 ； 椭圓 与两小圓 01、 02的垂直距离为 hl、 h2。
为保证除去内切小圓 0以外的椭圓区域面积最大（既在工作通道内插入工作器械后， 还可以留下更大的空间）， 椭圓中心与虚拟大圓圓心的距离 Z尽可能小， 但必须满足实 际需求， 圓 01、 02不能与椭圓相切和相交， 即 hl≠0, h2≠0。 而椭圓的短轴 b等于虚拟 小圓 0的半径时，圓 0的面积最大，且应满足大于工作通道中使用的工作器械的截面积。
本实施例的两个异形截面既可以通液体（这可使得手术过程中的血液、 体液、 冲洗 液回流更充分， 冲洗更容易， 流量更大）， 还能通过工作器械， 使手术起来更筒单方便。 本实施例的圓形截面用于穿过手术器械， 并可对于手术器械进行定位。
本发明的三腔软管的三个通道可以根据不同的需要而在通道尺寸上有不同的规格， 三个通道分别为工作通道、 控制转向通道、 图像及照明传感器通道。 本发明的核心部分 在相较于四腔软管来说， 工作通道是将四腔软管的工作通道和冲洗引流通道两个通道合 二为一。 控制转向通道内有单向（牵引）钢丝（或多股钢丝绳）， 直接通过软镜后端的控 制装置来控制前端的弯曲方向和角度； 图像及照明传感器通道内放置图像及图像及照明 传感器或光纤， 亦可将图像及照明传感器固化在图像及照明传感器通道内， 同样可以通 过后端的控制装置来调节它的焦距（及图像清晰度）。 工作通道可以根据需要， 进各种器 械， 如激光光纤、 取石篮， 双极电凝钳（剪）、 活检钳、 导丝等等。 三腔异形通道的设计 不仅使得工作通道管径及截面积增大， 更有利于手术过程中一至三把器械的操作， 而且 大截面腔道的口径使得手术过程中的血液、 体液、 冲洗液回流更充分， 冲洗更容易， 流 量更大， 腔道不易堵塞， 手术起来更筒单方便。 工作通道可以通过管径较大及多至三把 的器械， 它的临床意义在于可以解决目前很多由于管道尺寸导致的技术瓶颈， 临床上可 以单独使用或者与硬鞘结合为一体式软硬质内窥镜使用。
本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims

权利要求 书
1、 一种医疗内窥镜用软管， 它开有沿其轴向贯穿的通道， 其特征在于： 所述的通道 分为控制转向通道（ 1 )、 图像及照明传感器通道（ 2 )和工作通道（ 3 ),所述工作通道（ 3) 的横截面面积大于控制转向通道（1)或图像及照明传感器通道（2) 的横截面面积。
2、 根据权利要求 1所述的医疗内窥镜用软管， 其特征在于所述工作通道（ 3 ) 的横 截面由能通过手术器械的圓形截面和能方便液体从手术器械旁流过的位于圓形截面两侧 面的异形截面组成。
3、 根据权利要求 2所述的医疗内窥镜用软管， 其特征在于所述工作通道（ 3 ) 圓形 截面轮廓线的圓弧部分由两段分别与工作通道（3)中心为圓心对称布置的圓弧线（3.1) 构成， 所述工作通道（ 3 )异形截面轮廓线的曲线部分为将上述两段圓弧线两两对应端点 连接起来的两段曲线， 该两段曲线上任何一点距工作通道（3)中心的距离大于所述圓弧 线的半径。
4、 根据权利要求 3所述的医疗内窥镜用软管，其特征在于所述两段曲线为与工作通 道（3) 中心对称布置的椭圓线 （3.2)组成， 椭圓线（3.2) 与圆弧线 (3.1)平滑过渡连 接。
5、 根据权利要求 1-4中任一权利要求所述的医疗内窥镜用软管，其特征在于所述控 制转向 通道（1)和图像及照明传感器通道（2) 的横截面均为圓形。
6、根据权利要求 1-4中任一权利要求所述的医疗内窥镜用软管， 其特征在于所述控 制转向通道（1)、 图像及照明传感器通道（2)和工作通道（3) 的横截面分别沿软管横 截面周向分布。
PCT/CN2012/083796 2011-11-01 2012-10-31 一种医疗内窥镜用软管 Ceased WO2013064060A1 (zh)

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CN2011204256822U CN202446051U (zh) 2011-11-01 2011-11-01 内窥镜用三腔管分配器
CN201120425682.2 2011-11-01
CN201120428350XU CN202458285U (zh) 2011-11-02 2011-11-02 一种医疗内窥镜用软管
CN201120428350.X 2011-11-02
CN201120437883.4 2011-11-07
CN2011204378834U CN202313702U (zh) 2011-11-07 2011-11-07 一种用于内窥镜的内外鞘导向机构
CN201110349536.0 2011-11-07
CN 201110349536 CN102406495B (zh) 2011-11-07 2011-11-07 一种用于内窥镜的内外鞘导向机构

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