WO2021184151A1 - 一种内窥镜蛇骨及内窥镜 - Google Patents

一种内窥镜蛇骨及内窥镜 Download PDF

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Publication number
WO2021184151A1
WO2021184151A1 PCT/CN2020/079450 CN2020079450W WO2021184151A1 WO 2021184151 A1 WO2021184151 A1 WO 2021184151A1 CN 2020079450 W CN2020079450 W CN 2020079450W WO 2021184151 A1 WO2021184151 A1 WO 2021184151A1
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Prior art keywords
endoscope
snake bone
groove
grooves
present
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PCT/CN2020/079450
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English (en)
French (fr)
Inventor
张敏
Original Assignee
张敏
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Application filed by 张敏 filed Critical 张敏
Priority to PCT/CN2020/079450 priority Critical patent/WO2021184151A1/zh
Priority to CN202020336290.8U priority patent/CN212261316U/zh
Priority to CN202010184989.1A priority patent/CN111281315A/zh
Publication of WO2021184151A1 publication Critical patent/WO2021184151A1/zh

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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
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements
    • 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
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0057—Constructional details of force transmission elements, e.g. control wires
    • 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
    • A61B1/005—Flexible endoscopes
    • A61B1/008—Articulations

Definitions

  • the present invention relates to the field of medical equipment, in particular to a snake bone used in an endoscope and an endoscope.
  • the embodiment of the present invention provides an endoscope snake bone and an endoscope capable of synchronously transmitting torque force between the insertion portion and the front end.
  • the endoscope snake bone of the present invention includes a tubular snake bone body, the snake bone body includes an insertion part and a bending part, the bending part is located at the front end of the insertion part, the insertion part and the tube wall of the bending part
  • a through groove and an inner ear are provided on each of the through grooves.
  • a bump is provided on one side of the serpentine bone body on the front and rear sides in the through groove, and the other side of the serpentine bone body on the front and rear sides in the through groove is provided on the other side.
  • There is a groove matching the convex block the end of the convex block is located in the groove, and there is a gap between the end of the convex block and the bottom wall of the groove.
  • the through groove is a long arc-shaped groove, the through groove is arranged along the circumferential direction of the snake bone body, and the protrusion and the groove are both arranged in the middle of the through groove Location.
  • both ends of the through groove are round.
  • the gap between the end of the protrusion and the bottom wall of the groove is larger than the width of the through groove.
  • the tube wall of the curved part is provided with two sets of through grooves, each set of through grooves includes a plurality of through grooves, and the multiple through grooves in each set of through grooves are along the snake
  • two sets of through grooves are respectively arranged on opposite sides of the tube wall of the bending part, and the two sets of through grooves are arranged in a staggered manner.
  • the tube wall of the insertion part is provided with a plurality of through grooves arranged along the axial direction of the snake bone body, and one of the front and rear two adjacent through grooves on the tube wall of the insertion part They are arranged at an included angle, and the included angle is the angle between the projection of the line between the centers of the front and rear two adjacent through slots and the axis of the snake bone body on the cross section of the snake bone body.
  • the included angle is 45 degrees.
  • the endoscope in the present invention includes the above-mentioned endoscope snake bone.
  • a convex-concave matching structure that is, a convex block and a groove
  • the convex block and groove in the through groove always maintain the mating state. In this way, the torque force generated from the insertion part is transmitted to the bending part that is the front end without loss through the rigidity of the convex-concave matching structure, achieving overall synchronization before and after, and there is no abnormal vision and hand feeling error in the operation.
  • Figure 1 is a front view of the endoscope snake bone of the present invention
  • Figure 2 is a partial enlarged view of E in Figure 1;
  • Figure 3 is a top view of the endoscope snake bone of the present invention.
  • Figure 4 is a partial enlarged view of F in Figure 3;
  • Figure 5 is a bottom view of the endoscope snake bone of the present invention.
  • Fig. 6 is a partial enlarged view of G in Fig. 5;
  • Figure 7 is a right view of the endoscope snake bone in the present invention.
  • Figure 8 is a left view of the endoscope snake bone in the present invention.
  • Figure 9 is a three-dimensional view of the endoscope snake bone in the present invention.
  • Fig. 10 is a partial enlarged view of H in Fig. 9;
  • Figure 11 is another three-dimensional view of the endoscope snake bone in the present invention.
  • Figure 12 is a partial enlarged view of I in Figure 11;
  • Fig. 13 is a schematic diagram of the structure of the endoscope in the present invention.
  • the endoscope snake bone of the present invention includes a tubular snake bone body 1.
  • the snake bone body 1 includes an insertion portion 101 and a curved portion 102, and the curved portion 102 is located
  • the front end of the insertion portion 101, the insertion portion 101 and the curved portion 102 are provided with a through groove 2 and an inner ear 3 on the tube walls, and a protrusion 5 is provided on one side of the serpentine body 1 on the front and rear sides of the through groove 2.
  • the other side of the serpent bone body 1 on the front and back sides of the through groove 2 is provided with a groove 4 that matches with the protrusion 5.
  • the end of the protrusion 5 is located in the groove 4, and the end of the protrusion 5 is There is a gap between the bottom walls of the groove 4.
  • the front-rear direction in the present invention refers to the axial direction of the snake-bone body 1, the direction from the insertion portion 101 to the curved portion 102 is the direction from back to front, and the direction from the curved portion 102 to the insertion portion 101 is the direction from front to front. After the direction.
  • the convex block 5 and the groove 4 are arranged on the serpentine bone body 1 on the front and rear sides of the through groove 2, that is, the convex block 5 and the groove 4 are arranged in the front-rear direction, that is, the axial arrangement of the serpentine bone body 1. Therefore, the protrusion 5 and the groove 4 can synchronously transmit the torque force of the snake bone body 1 from the back to the front.
  • the tube wall of the snake bone body 1 is recessed inward to form an inner ear 3, which is used to pass through a steel wire, and the steel wire can pull the bending portion 102 to bend.
  • the through groove 2 is a long arc-shaped groove, both ends of the through groove 2 are circular, and the through groove 2 is arranged along the circumferential direction of the snake bone body 1, and the protrusions 5 and The grooves 4 are all arranged in the middle position of the through groove 2.
  • the end of the bump 5 is provided with a notch, the notch is semicircular, which can reduce the use of materials, thereby reducing the weight of the endoscope's snake bone.
  • the endoscope snake bone of the present invention wherein the tube wall of the curved portion 102 is provided with two sets of through grooves, and each set of through grooves includes a plurality of Through grooves 2, a plurality of through grooves 2 in each group of through grooves are arranged along the axial direction of the snake bone body 1, two groups of through grooves are respectively provided on opposite sides of the tube wall of the curved portion 102, and the two groups of through grooves are arranged in a staggered manner.
  • the tube wall of the insertion portion 101 is provided with a plurality of through grooves 2 arranged along the axial direction of the snake bone body 1.
  • the two adjacent through grooves 2 on the pipe wall of the insertion portion 101 are arranged at an included angle.
  • the included angle is the line between the center of the two adjacent through grooves 2 and the axis of the snake bone body 1 1
  • the cross section is the radial section of the snake bone body 1.
  • the included angle is 45 degrees.
  • the included angle can also be other angles, and is not limited to 45 degrees.
  • the endoscope in the present invention includes the above-mentioned endoscope snake bone, the rear end of the insertion part 101 is connected to the handle, and the bending part 102 is connected to the tip end of the endoscope.
  • the present invention adds a convex-concave matching structure (that is, the convex block 5 and the groove 4) in the through groove 2 of the snake bone.
  • a convex-concave matching structure that is, the convex block 5 and the groove 4
  • the convex block 5 and the groove in the through groove 2 4 always maintain the mating state, so that the torque force generated from the insertion part 101 is transmitted to the bending part 102 that is the front end without loss through the rigidity of the convex-concave mating structure, achieving overall synchronization before and after, and there is no abnormal vision and hand feeling error in the operation.
  • the advantage of the invention is to design and engrave the required convex and concave matching structure on the material of the snake bone itself, without adding any other materials, and is suitable for any metal thin-walled integral snake bone.
  • a convex-concave matching structure that is, bumps and grooves
  • the snake bone is in a straight state or in a curved state
  • the protrusions and grooves in the through grooves are always kept in the mating state, so that the torque force generated from the insertion part is transmitted to the curved part that is the front end without loss through the rigidity of the convex-concave matching structure, achieving overall synchronization before and after the operation. Abnormal visual and feel errors.
  • the endoscope snake bone and the endoscope of the embodiment of the present invention can be mass-produced and manufactured.

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Abstract

本发明公开了一种内窥镜蛇骨及内窥镜，其中内窥镜蛇骨包括呈管状的蛇骨本体，所述蛇骨本体包括插入部和弯曲部，所述弯曲部位于插入部的前端，所述插入部和弯曲部的管壁上均开设有通槽和内耳，所述通槽内的前后两侧蛇骨本体中的一侧上设有凸块，所述通槽内的前后两侧蛇骨本体中的另一侧上设有与所述凸块相匹配的凹槽，所述凸块的端头位于凹槽内，所述凸块的端头与凹槽的底壁之间有间隙。其中内窥镜包括上述内窥镜蛇骨。其目的是为了提供一种插入部与前端之间能够同步传动扭矩力的内窥镜蛇骨及内窥镜。

Description

一种内窥镜蛇骨及内窥镜 技术领域
本发明涉及医疗器械领域，特别是涉及一种用于内窥镜的蛇骨及内窥镜。
发明背景
在实际操作中，如果内窥镜(软镜)前端与插入部后端，不具有同步传动扭矩力功能，或是插入部旋转时，而前端旋转滞后、不同步，内窥镜无法准确地观测到所需观察的部位，这是不满足设计要求的。在现有的内窥镜中，内窥镜的插入部与前端之间存在传动扭矩力不同步、甚至无法传动扭矩力的问题。
发明内容
有鉴于此，本发明实施例提供一种插入部与前端之间能够同步传动扭矩力的内窥镜蛇骨及内窥镜。
本发明中的内窥镜蛇骨，包括呈管状的蛇骨本体，所述蛇骨本体包括插入部和弯曲部，所述弯曲部位于插入部的前端，所述插入部和弯曲部的管壁上均开设有通槽和内耳，所述通槽内的前后两侧蛇骨本体中的一侧上设有凸块，所述通槽内的前后两侧蛇骨本体中的另一侧上设有与所述凸块相匹配的凹槽，所述凸块的端头位于凹槽内，所述凸块的端头与凹槽的底壁之间有间隙。
本发明中的内窥镜蛇骨，其中所述通槽为长条弧形槽，所述通槽沿着蛇骨本体的周向布置，所述凸块和凹槽均设于通槽的中间位置。
本发明中的内窥镜蛇骨，其中所述通槽的两端均为圆形。
本发明中的内窥镜蛇骨，其中所述凸块的端头与凹槽底壁之间的间隙大于通槽的宽度。
本发明中的内窥镜蛇骨，其中所述弯曲部的管壁上设有两组通槽，每组通槽均包括多个通槽，每组通槽内的多个通槽均沿蛇骨本体的轴向布置，两组通槽分 别设于弯曲部管壁的相对两侧，两组通槽交错布置。
本发明中的内窥镜蛇骨，其中所述插入部的管壁上设有沿蛇骨本体轴向布置的多个通槽，所述插入部管壁上的前后两个相邻通槽之间呈夹角布置，所述夹角为所述前后两个相邻通槽的中心与蛇骨本体轴线之间的连线在蛇骨本体横截面上的投影之间的夹角。
本发明中的内窥镜蛇骨，其中所述夹角为45度。
本发明中的内窥镜，包括上述的内窥镜蛇骨。
本发明在蛇骨的通槽内增加了凸凹配合结构(即凸块和凹槽)，蛇骨不管在直向状态还是在弯曲状态中，通槽内的凸块和凹槽始终保持配合状态，这样从插入部产生的扭距力，通过凸凹配合结构的刚性，无损耗的传递到弯曲部即前端，达到前后整体同步，手术操作中无异常视觉和手感误差。
附图简要说明
图1为本发明中内窥镜蛇骨的主视图；
图2为图1中E处的局部放大图；
图3为本发明中内窥镜蛇骨的俯视图；
图4为图3中F处的局部放大图；
图5为本发明中内窥镜蛇骨的仰视图；
图6为图5中G处的局部放大图；
图7为本发明中内窥镜蛇骨的右视图；
图8为本发明中内窥镜蛇骨的左视图；
图9为本发明中内窥镜蛇骨的立体图；
图10为图9中H处的局部放大图；
图11为本发明中内窥镜蛇骨的又一立体图；
图12为图11中I处的局部放大图；
图13为本发明中内窥镜的结构示意图。
实施本发明的方式
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作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。
如图1所示，并结合图2-12所示，本发明中的内窥镜蛇骨包括呈管状的蛇骨本体1，蛇骨本体1包括插入部101和弯曲部102，弯曲部102位于插入部101的前端，插入部101和弯曲部102的管壁上均开设有通槽2和内耳3，通槽2内的前后两侧蛇骨本体1中的一侧上设有凸块5，通槽2内的前后两侧蛇骨本体1中的另一侧上设有与凸块5相匹配的凹槽4，凸块5的端头位于凹槽4内，凸块5的端头与凹槽4的底壁之间有间隙。
本发明中的前后方向指的是蛇骨本体1的轴向，从插入部101到弯曲部102的方向即为从后到前的方向，从弯曲部102到插入部101的方向即为从前到后的方向。
凸块5和凹槽4设置于通槽2前后两侧的蛇骨本体1上，即凸块5和凹槽4沿前后方向布置，也就是蛇骨本体1的轴向布置。因此，凸块5和凹槽4能够将蛇骨本体1的扭矩力从后向前同步传递。
如图7所示，并结合图8所示，蛇骨本体1的管壁向内凹陷形成内耳3，内耳3用于穿过钢丝，钢丝能够牵引弯曲部102进行弯曲。
本发明中的内窥镜蛇骨，其中通槽2为长条弧形槽，通槽2的两端均为圆形，通槽2沿着蛇骨本体1的周向布置，凸块5和凹槽4均设于通槽2的中间位置。
如图2所示，凸块5的端头与凹槽4底壁之间的间隙B大于通槽2的宽度D，B＝D+0.15。凹槽4的深度C＝B+0.2，凹槽4的宽度A略大于凸块5的宽度。凸块5的端头上设有槽口，该槽口为半圆形，其能够减少材料的使用，从而能够降低内窥镜蛇骨的重量。
如图4所示，并结合图6、10、12所示，本发明中的内窥镜蛇骨，其中弯 曲部102的管壁上设有两组通槽，每组通槽均包括多个通槽2，每组通槽内的多个通槽2均沿蛇骨本体1的轴向布置，两组通槽分别设于弯曲部102管壁的相对两侧，两组通槽交错布置。
如图9所示，并结合图10-12所示，本发明中的内窥镜蛇骨，其中插入部101的管壁上设有沿蛇骨本体1轴向布置的多个通槽2，插入部101管壁上的前后两个相邻通槽2之间呈夹角布置，夹角为前后两个相邻通槽2的中心与蛇骨本体1轴线之间的连线在蛇骨本体1横截面上的投影之间的夹角。横截面为蛇骨本体1的径向截面。
本发明中的内窥镜蛇骨，其中夹角为45度。当然，夹角还可以为其他角度，而并不仅限于45度。
如图13所示，本发明中的内窥镜，包括上述的内窥镜蛇骨，插入部101的后端与手柄连接，弯曲部102与内窥镜的先端连接。
本发明在蛇骨的通槽2内增加了凸凹配合结构(即凸块5和凹槽4)，蛇骨不管在直向状态还是在弯曲状态中，通槽2内的凸块5和凹槽4始终保持配合状态，这样从插入部101产生的扭距力，通过凸凹配合结构的刚性，无损耗的传递到弯曲部102即前端，达到前后整体同步，手术操作中无异常视觉和手感误差。
本发明的优点是在蛇骨本身材料上设计并雕刻出所需的凸、凹配合结构即可，无任何其它的材料加入，适用于任何金属薄壁整体蛇骨。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。
工业实用性
本发明实施例的内窥镜蛇骨及内窥镜中，在蛇骨的通槽内增加了凸凹配合结构(即凸块和凹槽)，蛇骨不管在直向状态还是在弯曲状态中，通槽内的凸 块和凹槽始终保持配合状态，这样从插入部产生的扭距力，通过凸凹配合结构的刚性，无损耗的传递到弯曲部即前端，达到前后整体同步，手术操作中无异常视觉和手感误差。本发明实施例的内窥镜蛇骨及内窥镜能够批量生产制造。

Claims (8)

  1. 一种内窥镜蛇骨，包括呈管状的蛇骨本体，所述蛇骨本体包括插入部和弯曲部，所述弯曲部位于所述插入部的前端，所述插入部和所述弯曲部的管壁上均开设有通槽和内耳，其特征在于：所述通槽内的前后两侧所述蛇骨本体中的一侧上设有凸块，所述通槽内的前后两侧所述蛇骨本体中的另一侧上设有与所述凸块相匹配的凹槽，所述凸块的端头位于所述凹槽内，所述凸块的端头与所述凹槽的底壁之间有间隙。
  2. 根据权利要求1所述的内窥镜蛇骨，其特征在于：所述通槽为长条弧形槽，所述通槽沿着所述蛇骨本体的周向布置，所述凸块和所述凹槽均设于所述通槽的中间位置。
  3. 根据权利要求2所述的内窥镜蛇骨，其特征在于：所述通槽的两端均为圆形。
  4. 根据权利要求3所述的内窥镜蛇骨，其特征在于：所述凸块的端头与所述凹槽底壁之间的间隙大于所述通槽的宽度。
  5. 根据权利要求4所述的内窥镜蛇骨，其特征在于：所述弯曲部的管壁上设有两组通槽，每组通槽均包括多个所述通槽，每组通槽内的多个所述通槽均沿所述蛇骨本体的轴向布置，所述两组通槽分别设于所述弯曲部管壁的相对两侧，所述两组通槽交错布置。
  6. 根据权利要求5所述的内窥镜蛇骨，其特征在于：所述插入部的管壁上设有沿所述蛇骨本体轴向布置的多个所述通槽，所述插入部管壁上的前后两个相邻所述通槽之间呈夹角布置，所述夹角为前后两个相邻所述通槽的中心与所述蛇骨本体轴线之间的连线在所述蛇骨本体横截面上的投影之间的夹角。
  7. 根据权利要求6所述的内窥镜蛇骨，其特征在于：所述夹角为45度。
  8. 一种内窥镜，其特征在于：包括权利要求1-7任一项所述的内窥镜蛇骨。
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