WO2019218947A1 - 可控弯曲管结构 - Google Patents

可控弯曲管结构 Download PDF

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Publication number
WO2019218947A1
WO2019218947A1 PCT/CN2019/086503 CN2019086503W WO2019218947A1 WO 2019218947 A1 WO2019218947 A1 WO 2019218947A1 CN 2019086503 W CN2019086503 W CN 2019086503W WO 2019218947 A1 WO2019218947 A1 WO 2019218947A1
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WIPO (PCT)
Prior art keywords
slot
controllable
tube
bending
curved tube
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PCT/CN2019/086503
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English (en)
French (fr)
Inventor
黄琴
Original Assignee
Huang Qin
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Publication date
Application filed by Huang Qin filed Critical Huang Qin
Publication of WO2019218947A1 publication Critical patent/WO2019218947A1/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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports

Definitions

  • the present application relates to the field of medical devices, and in particular to a field of medical devices, and more particularly to a controllable curved tube structure.
  • An insertion portion that is inserted into a living body or a tube is provided in an endoscope that can be applied to industrial use or medical use.
  • a controllable bending portion is provided on the distal end side of the insertion portion.
  • the bending portion can perform a bending operation in accordance with an operation of the operating device provided in the operating portion. Therefore, in the endoscope having the curved portion, the direction of the observation portion provided at the distal end portion can be directed to the desired direction by the operation device.
  • an endoscope device having a curved tube with enhanced external resistance, which is applied to a plurality of curved blocks formed by laser drawing to be connected External forces, including pulling, bending and twisting.
  • a bending tube includes: a first bending piece for forming a bendable bending tube; a second bending piece for rotating relative to the first bending piece; a portion that is formed in the first bending piece and has a rotating shaft that rotates the second bending piece, and an engaging portion that is formed in the second bending piece and that is substantially parallel to the rotation axis and opposite to a sliding surface on which the link portion slides, the engagement portion is engaged with the link portion to be rotatable, and a receiving portion formed in the vicinity of the link portion in the first bending piece
  • the vertical surface is capable of abutting against the engaging portion when the engaging portion that is engaged with the link portion is rotated, and is formed in a direction substantially perpendicular to the rotation axis.
  • the curved pipe structure provided in the above document constitutes the respective bending pieces or the joints of the pipe joints of the curved pipe are the notches and projections which are engaged with each other, and the opening direction of the notch coincides with the axial direction of the curved pipe.
  • the protrusions are inserted into the recesses along the axial direction of the curved tube to connect the various bending blocks or tube segments in series. This design is easy to cause the bending block or the tube joint to fall off, which increases the safety hazard of the operation and affects the service life of the instrument.
  • the present application discloses a controllable curved tube structure, wherein a connecting structure is disposed on a wall of at least two directions in a circumferential direction of the controllable curved tube, and a curved structure is disposed on the tube wall spaced apart from the connecting structure,
  • the connecting structure includes slots that are staggered in the axial direction, and one side of the tube wall is shared between any two adjacent slots, and the curved structure is provided with at least a nip formed along the axial direction.
  • the nip extends along a circumferential direction of the tube wall, and the slit and the nip are in one-to-one correspondence.
  • any two adjacent slotted joints have different directions of the corresponding slits.
  • the connecting structure including the slots staggered in the axial direction specifically includes: the connecting structure includes 2N slots staggered in the axial direction, wherein the 2N slots include N slotted pairs, each of the slotted pairs including a first slot and a second slot.
  • first slot and the second slot are centered symmetrically; or the first slot and the second slot are both "hook” type, and the first A slot and the second slot are arranged in an "eight go” manner.
  • the N slots are equally spaced.
  • one or more openings are provided in the wall between any two adjacent said nips, said openings extending in the circumferential direction of said tube wall.
  • the shape of the opening is strip or elliptical.
  • the device further includes a control device for controlling bending of the controllable bending tube, the control device comprising one or more traction wires.
  • control device further includes one or more fixing portions disposed on the wall of the tube for fixing the traction wire, the fixing portion being evenly distributed on the tube wall Weekly.
  • the controllable curved pipe structure of the present invention has a side pipe wall shared between any two axial grooves adjacent to each other in the circumferential direction of the connecting structure, thereby integrally connecting the controllable bending pipe without risk of partial falling off;
  • a slit is formed on the other side wall of the slot, and the slit is connected with the slit forming the curved structure, thereby providing a required bending space for bending the tube body, and is convenient for controlling the bending of the tube body by controlling the degree of displacement The degree provides great convenience for the operation and has high practical value.
  • FIG. 1 is a schematic view showing an example of an overall structure of a controllable curved tube according to an embodiment of the present application
  • FIG. 2 is a partial enlarged schematic view of one direction of a controllable bending tube according to an embodiment of the present application
  • FIG. 3 is a schematic overall view of a curved state of a controllable curved tube in an embodiment of the present application
  • FIG. 4 is a partially enlarged schematic view showing a curved state of a controllable bending tube in an embodiment of the present application
  • Figure 5 is a partially enlarged schematic view showing the other direction of the controllable bending tube of the embodiment of the present application.
  • FIG. 6 is a partially enlarged schematic view showing still another direction of the controllable bending tube of the embodiment of the present application.
  • the upper, lower, left and right in the figure are regarded as the controllable bending tube and its upper, lower, left and right as described in the present specification.
  • a and / or B can mean only A, can also mean only B, can also represent A and B.
  • controllable curved tube structure is suitable for the insertion portion.
  • connection structure is provided on the pipe wall in at least two directions in the circumferential direction of the controllable bending pipe 100, and a curved structure is provided on the pipe wall spaced apart from the connection structure.
  • the connecting structure includes a slot 110 that is staggered in the axial direction, and the tube wall 101 on one side is shared between any two adjacent slots 110.
  • the curved structure is provided with at least a nip 120 arranged in the axial direction, and the nip 120 extends in the circumferential direction of the tube wall.
  • the slot 110 and the nip 120 are in one-to-one correspondence.
  • the one side pipe wall 101 is shared between any two adjacent slots 110, that is, the tube 1011 axially connects the controllable bending tube 100 without breaking, thereby making the controllable bending tube 100 a whole.
  • the curved structure of the controllable bending tube 100 is provided with a spacing structure that includes at least a nip 120 that provides a curved space for the controllable bending tube 100.
  • a connection structure is provided in at least two directions in the circumferential direction of the controllable bending tube 100, and the connection structure is used to connect the controllable bending tube 100 as a whole, thereby avoiding partial dropout of the controllable bending tube 100, and spacing
  • the connecting structure is provided to provide a curved structure, and under the condition that the respective portions of the controllable bending tube 100 are connected as a whole, a bending space is provided for bending the controllable bending tube in a desired direction.
  • the slot 110 and the nip 120 cooperate to satisfy the deformation space required for the bending of the pipe body, and increase the flexibility and smoothness of the bendable deformation of the controllable bending pipe 100.
  • the slot 110 and the nip 120 are in one-to-one correspondence, and the structure can further provide a deformation space for the bending of the tube.
  • the structure of the controllable bending tube 100 in the embodiment of the present invention is simple. For example, it can be formed by laser cutting or other processes, and the processing cost is low, and the yield is high.
  • the material of the pipe wall is preferably a metal material such as sus304, sus316 or nickel titanium alloy.
  • Non-metallic materials such as nylon, polyurethane (PU), thermoplastic polyurethane elastomer (TPU), polyvinyl chloride (PVC), thermoplastic elastomer (TPE), etc. can also be used.
  • any two adjacent slots 110 are connected to the corresponding nip 120 in different directions.
  • slot #1 and the slot #2 are two adjacent slots, the slot #1 and the slot #a are connected, the slot #2 and the slot b are connected, wherein the slot #1 is connected to the slot #a At the left end, slot #2 connects the right end of the slot #b.
  • Adjacent any two of the slotted joints have different directions of the slits, so that the curved structure has better stability under the premise of flexible bending.
  • the connecting structure includes the slots 110 that are staggered in the axial direction.
  • the specific structure may include: as shown in FIG. 2, the connecting structure includes 2N slots 110 staggered in the axial direction, wherein the 2N The slots include N slot pairs, each of the slot pairs including a first slot 111 and a second slot 112.
  • the slot 110 includes a first slot 111 and a second slot 112. It can be considered that the two sides of the controllable curved tube are oppositely disposed with two sets of connecting structures. At the same time, the two sets of curved structures can be oppositely disposed with two sets of curved structures, and FIG. 2 is a partially enlarged schematic view of one direction of the controllable curved tube according to the embodiment of the present application. As shown in FIG. 2, when the controllable bending tube 100 is bent, the nip 120 in a set of curved structures is large, and the slots 110 on both sides of the nip 120 are driven to provide a tensile deformation space required for bending the tube.
  • the nip 120 in the other set of curved structures disposed opposite the shuffled curved structure is reduced to provide the compression deformation space required for the tubular body region, and all of the above changes are reversed when the controllable curved tube is bent to the other side. It is generated such that the controllable bending tube 100 in this embodiment can be bent in two directions.
  • 3 and 4 are overall and partial schematic views of the curved state of the controllable curved tube in the embodiment of the present application. As shown in FIG. 3 and FIG. 4, the slots 110 in the two sets of connecting structures are bent and deformed, and the axis thereof changes into an arc, and the side wall of the tube that is shared by any two slots connects the entire controllable bending tube 100. As a whole, the local tube body is prevented from falling off when the controllable bending tube 100 is bent, and the stability of the tube body connection is provided.
  • first slotted and second slotted structures may comprise one of a plurality of types.
  • first slot 111 and the second slot 112 are centrally symmetric.
  • first slot 111 and the second slot 112 are both "hook” type, and the first slot 111 and the second slot 112 are "eight" style. arrangement.
  • the shape design is not only beautiful in appearance, but also can ensure the stability of the connection, and flexibly control the bending of the controllable bending tube, and the operation is simple and convenient.
  • the N slots are equally spaced.
  • the N slots are equally spaced, which facilitates the controllable bending tube 100 to perform dynamic deformation in various directions, which is beneficial to the operator.
  • one or more openings 130 are provided in the wall between any two adjacent said slits 120, said openings 130 extending in the circumferential direction of said tube wall.
  • two elongated openings 130 parallel to each other are provided, and the opening 130 can further provide a space required for bending the pipe body, and increase the angle of bending of the controllable bending pipe.
  • the range which enhances the flexibility of the pipe body and reduces the weight of the pipe body and the manufacturing cost, is a very clever design in practice.
  • FIG. 5 is a partially enlarged schematic view of another direction of a controllable curved tube in accordance with an embodiment of the present application.
  • the opening 130 may have various shapes such as a strip shape or an elliptical shape.
  • connection structure is provided on the pipe wall in at least two directions in the circumferential direction of the controllable bending pipe 100. Further alternatively, it is assumed that a connection structure is provided on the tube wall in two directions in the circumferential direction of the controllable bending tube 100, and the two connection structures may be symmetrical structures.
  • 6 is a partially enlarged schematic view of another direction of a controllable curved tube in accordance with an embodiment of the present application. As shown in FIG. 6, the second slot 112 and the second slot 112' are symmetrical.
  • controllable curved tube structure in accordance with an embodiment of the present application has been described. Further optionally, in order to enable the user to better control the controllable bending device, a control device according to an embodiment of the present application will be described below.
  • the control device is preferably one or more traction wires for controlling the controllable bending tube 100 to bend in one or more directions.
  • the driving device can be driven.
  • the wall of the fixed wire of the pulling wire moves, and the axis of the groove 110 of the pipe wall is gradually curved into an arc.
  • the pulling wire is continuously pulled. It can continue to drive the adjacent pipe wall to continue to rotate, so that the whole bending device is bent; when the bending device is bent to the angle required by the user, the external force applied to the bending device is removed and the traction wire is fixed.
  • the bending device is held in the bent position.
  • the traction portion is preferably a steel wire, but is not limited thereto.
  • the traction portion may also be any filament-like structure, and the filament-like structure may also be any metal or non-metal material.
  • one or more of the tube wall may be provided.
  • one or two traction wires may preferably be provided in the inner side of the controllable bending tube 100 as the control device 200 such that the controllable bending device can be bent in one or two directions.
  • the plurality of fixing portions are uniformly distributed in the circumferential direction of the pipe wall to ensure that the bending device can be bent in various directions.
  • the fixing portion may be a circular tube fixedly connected to the inner wall of the controllable curved tube 100, or may be a wire groove formed on the inner wall of the controllable curved tube 100. Fixing the pulling wire through the fixing portion can prevent the pulling wire from slipping off and causing the controllable bending device to fail.
  • the controllable bending device according to the present invention can bend the tube joint group by the control portion according to the needs of the user, and can bend in any direction required by the user, which is flexible and convenient. The above provides a preferred control method for controlling the controllable curved tube. Those skilled in the art will also know that many control methods or control devices for controlling the bending of the controllable curved tube in a desired direction are included in the practice, and are not limited to the above preferred embodiment. Control device provided in the middle.
  • controllable curved pipe structure of the present invention has a side pipe wall shared between any two axial through holes adjacent to each other in the circumferential direction of the connecting structure, thereby integrally connecting the controllable bending pipe without local partial peeling.
  • the other side of the axial through hole is provided with a slit, and the slit is connected with the slit forming the curved structure, thereby providing the required bending space for bending the tube, which is advantageous for controlling the degree of displacement. Controlling the degree of bending of the tube body provides great convenience for surgical operation and has high practical value.

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Abstract

一种可控弯曲管结构，在可控弯曲管（100）的周向的至少两个方向的管壁上设置连接结构，间隔连接结构的管壁上设置弯曲结构，连接结构包括沿轴向交错排列的开槽（110），相邻的任意两个开槽（110）之间共用一侧管壁（101），弯曲结构至少设有沿轴向排列的夹缝（120），夹缝（120）沿管壁的周向延伸，开槽（110）和夹缝（120）一一对应相连通。由于连接结构的周向相邻的任意两个轴向开槽（110）之间共用一侧管壁，将可控弯曲管整体连接起来，无局部脱落的风险；同时开槽（110）与夹缝（120）一一对应相连通，利于通过控制位移程度来控制管体的弯曲程度，为手术操作提供了便利性。

Description

可控弯曲管结构 技术领域
本申请涉及医疗器械领域，特别是涉及一种本申请涉及医疗器械领域，特别是涉及一种可控弯曲管结构。
背景技术
在能够应用于工业用途、医疗用途的内窥镜中设有被插入活体内或管内的插入部。一般在具有软性插入部的内窥镜中，在插入部的前端侧设有可控弯曲部。弯曲部可随着设于操作部中的操作装置的操作而进行弯曲动作。因此，在具有弯曲部的内窥镜中，能够通过操作装置使设于前端部的观察部的方向朝向期望方向。
在申请号为CN201580047959.3的发明专利文献中，提供一种具有对外力的耐性得到增强的弯曲管的内窥镜装置，所述外力是对通过激光描绘而形成为相连的多个弯曲块施加的外力，包含牵拉、弯曲和扭转。为了达成上述目的，该发明的实施方式的弯曲管具有：第1弯曲块，其用于构成能够弯曲的弯曲管；第2弯曲块，其用于相对于所述第1弯曲块转动；连杆部，其形成于所述第1弯曲块，具有使所述第2弯曲块转动的转动轴；卡合部，其形成于所述第2弯曲块，具有与所述转动轴大致平行且相对于所述连杆部滑动的滑动面，所述卡合部与所述连杆部卡合为能够旋转；以及承受部，其形成在所述第1弯曲块中所述连杆部的附近，具有垂直面，该垂直面在与所述连杆部卡合的所述卡合部转动时能够与所述卡合部抵接，形成于与所述转动轴大致垂直的方向上。
然而，上述文件中所提供的弯曲管结构，构成弯曲管的各个弯曲块或者管节的连接结构为相互卡合的凹口和凸起，且凹口的开口方向与弯曲管的轴向一致，凸起沿着弯曲管的轴向方向卡入凹口中来串联各个弯曲块或者管节，这种设计容易造成弯曲块或者管节脱落，增加手术安全隐患，影响器械的使用寿命。
发明内容
本申请公开了一种可控弯曲管结构，在所述可控弯曲管的周向的至少两个方向的管壁上设置连接结构，间隔所述连接结构的所述管壁上设置弯曲结构，所述 连接结构包括沿轴向交错排列的开槽，相邻的任意两个所述开槽之间共用一侧所述管壁，所述弯曲结构至少设有沿轴向排列的夹缝，所述夹缝沿所述管壁的周向延伸，所述开槽和所述夹缝一一对应相连通。
在一种可能的实现方式中，相邻的任意两个所述开槽连接对应夹缝的方向不同。
在一种可能的实现方式中，所述连接结构包括沿轴向交错排列的开槽具体包括：所述连接结构包括沿轴向交错排列的2N个开槽，其中，所述2N个开槽包括N个开槽对，每个所述开槽对包括第一开槽和第二开槽。
在一种可能的实现方式中，所述第一开槽和所述第二开槽中心对称；或所述第一开槽和所述第二开槽均呈“钩”型，且所述第一开槽和所述第二开槽呈“八卦”式排列。
在一种可能的实现方式中，所述N个开槽对等间隔排列。
在一种可能的实现方式中，任意两个相邻的所述夹缝之间的管壁上设有一个或多个开口，所述开口沿所述管壁的周向延伸。
在一种可能的实现方式中，所述开口的形状为条状或椭圆状。
在一种可能的实现方式中，还包括控制所述可控弯曲管发生弯曲的控制装置，所述控制装置包含一根或多根牵引丝。
在一种可能的实现方式中，所述控制装置还包括设置于所述管壁上的一个或多个用于固定所述牵引丝的固定部，所述固定部均布于所述管壁的周向。
本发明涉及的可控弯曲管结构，其连接结构的周向相邻的任意两个轴向开槽之间共用一侧管壁，从而将可控弯曲管整体连接起来，无局部脱落的风险；同时轴向开槽的另一侧管壁上设有切缝，切缝与构成弯曲结构的夹缝相连通，从而提供了管体弯曲的所需要的弯曲空间，利于通过控制位移程度来控制管体的弯曲程度，为手术操作提供了很大的便利性，具有很高的实用价值。
为让本申请的上述内容能更明显易懂，下文特举优选实施例，并结合附图，作详细说明如下。
附图说明
下面将结合附图介绍本申请。
图1是根据本申请实施例的可控弯曲管的整体结构一例的示意图；
图2是根据本申请实施例的可控弯曲管一个方向的局部放大示意图；
图3是本申请实施例中的可控弯曲管的弯曲状态整体示意图；
图4是本申请实施例中的可控弯曲管的弯曲状态局部放大示意图；
图5是本申请实施例的可控弯曲管另一个方向的局部放大示意图；
图6是本申请实施例的可控弯曲管又一个方向的局部放大示意图。
具体实施方式
以下由特定的具体实施例说明本申请的实施方式，本领域技术人员可由本说明书所揭示的内容轻易地了解本申请的其他优点及功效。
需说明的是，在本申请中，图中的上、下、左、右即视为本说明书中所述的可控弯曲管及其的上、下、左、右。
还需要说明的是，在本申请中，和/或至少表示三种关系。例如，A和/或B，可以表示仅有A，也可以表示仅有B，还可以表示A和B。
现在参考附图介绍本申请的示例性实施方式，然而，本申请可以用许多不同的型式来实施，并且不局限于此处描述的实施例，提供这些实施例是为了详尽地且完全地公开本申请，并且向所属技术领域的技术人员充分传达本申请的范围。对于表示在附图中的示例性实施方式中的术语并不是对本申请的限定。在附图中，相同的单元/元件使用相同的附图标记。
除非另有说明，此处使用的术语(包括科技术语)对所属技术领域的技术人员具有通常的理解含义。另外，可以理解的是，以通常使用的词典限定的术语，应当被理解为与其相关领域的语境具有一致的含义，而不应该被理解为理想化的或过于正式的意义。
图1是根据本申请实施例的可控弯曲管的一例的示意性图。该可控弯曲管结构，适用于所述的插入部。
如图1所示，在该可控弯曲管100的周向的至少两个方向的管壁上设置连接结构，间隔所述连接结构的所述管壁上设置弯曲结构。
其中，连接结构包括沿轴向交错排列的开槽110，相邻的任意两个所述开槽110之间共用一侧所述管壁101。所述弯曲结构至少设有沿轴向排列的夹缝120，所述夹缝120沿所述管壁的周向延伸。所述开槽110和所述夹缝120一一对应相连通。
具体地，相邻的任意两个开槽110之间共用一侧管壁101，亦即该管1011将可控弯曲管100轴向相连而无断裂处，从而使得可控弯曲管100成为一个整体。可控弯曲管100的弯曲结构间隔连接结构而设置，弯曲结构至少包括夹缝120，夹缝120为可控弯曲管100提供弯曲空间。
在本申请实施例中，在可控弯曲管100周向的至少两个方向上设置连接结构，连接结构用于将可控弯曲管100连接为一个整体，避免可控弯曲管100局部脱落，间隔连接结构来设置弯曲结构，在保证可控弯曲管100的各个部分连接为一个整体的条件下，为可控弯曲管向所需要的方向进行弯曲提供弯曲空间。开槽110和夹缝120相配合来满足管体弯曲所需要的形变空间，增加了可控弯曲管100发生弯曲形变的灵活性和顺滑性。开槽110和所述夹缝120一一对应相连通，该结构可以为管体的弯曲进一步提供形变空间。
进一步地，本发明实施例中的可控弯曲管100的结构简单。例如，可通过激光切割或其他工艺加工成型，加工成本低廉，且成品率高。管壁的材质优选为金属材料，例如sus304，sus316或者是镍钛合金等。也可以选用非金属材料，如如尼龙、聚氨酯(PU)、热塑性聚氨酯弹性体橡胶(TPU)、聚氯乙烯(PVC)、热塑性弹性体(TPE)等各种塑胶材料
可选地，相邻的任意两个所述开槽110连接对应夹缝120的方向不同。
具体地，相邻的任意两个所述开槽110连接对应夹缝120的方向不同可以理解为：相邻的任意两个所述开槽110分别连接对应夹缝120不同的端部。
例如，假设开槽#1和开槽#2为相邻的两个开槽，开槽#1和夹缝#a相连，开槽#2和夹缝b相连，其中，开槽#1连接夹缝#a的左端，开槽#2连接夹缝#b的右端。
相邻的任意两个所述开槽连接对应夹缝的方向不同，使得弯曲结构在可灵活弯曲的前提下，具有较好的稳定性。
可选地，所述连接结构包括沿轴向交错排列的开槽110具体可以包括：如图2所示，所述连接结构包括沿轴向交错排列的2N个开槽110，其中，所述2N个开槽包括N个开槽对，每个所述开槽对包括第一开槽111和第二开槽112。
具体地，开槽110包括第一开槽111和第二开槽112，可以认为可控弯曲管的周向上相对设有两组连接结构。同时间隔该两组弯曲结构可相对设置两组弯曲结构，图2是根据本申请实施例的可控弯曲管一个方向的局部放大示意图。如图2示，当可控弯曲管100发生弯曲时，一组弯曲结构中的夹缝120大，并带动该夹缝120两侧的开槽110发生以提供管体弯曲所需要的拉伸形变空间，相应的，与改组弯曲结构相对设置的另一组弯曲结构中的夹缝120减小，以提供管体管区所需要的压缩形变空间，当可控弯曲管向另一侧弯曲时上述所有变化反向生成，使得该实施例中的可控弯曲管100可以向两个方向弯曲。图3和图4是本申请实施例中的可控弯曲管的弯曲状态整体和局部示意图。如图3和图4所示，两组连接 结构中的开槽110发生弯曲形变，其轴线变化为弧线，而任意两个开槽所共用的一侧管壁将整个可控弯曲管100连接为一个整体，避免可控弯曲管100弯曲时局部管体脱落，提供管体连接的稳定性。
进一步地，第一开槽和第二开槽的结构可以包括多种中的一种。
作为可选地一例，所述第一开槽111和所述第二开槽112中心对称。
作为可选地另一例，所述第一开槽111和所述第二开槽112均呈“钩”型，且所述第一开槽111和所述第二开槽112呈“八卦”式排列。该形状设计不仅外表美观，而且能够再保证连接的稳固性的同时，灵活地对可控弯曲管进行弯曲控制，操作时简捷方便。
可选地，所述N个开槽对等间隔排列。
具体地，N个开槽对等间隔排列，有利于可控弯曲管100进行各个方向等力度变形，有利于操作人员进行操作。
可选地，任意两个相邻的所述夹缝120之间的管壁上设有一个或多个开口130，所述开口130沿所述管壁的周向延伸。
如图5所示，任意两个相邻的夹缝120之间设有相互平行的两个长条形的开口130，开口130能够进一步提供管体弯曲所需空间，增加可控弯曲管弯曲的角度范围，增强管体的柔性，且能够降低管体重量和制造成本，是实践中非常巧妙的一种设计。
图5是根据本申请实施例的可控弯曲管另一个方向的局部放大示意图。如图5示，开口130可以为条状或椭圆状等各种形状。
由上文可知，在可控弯曲管100的周向的至少两个方向的管壁上设置连接结构。进一步可选地，假设在可控弯曲管100的周向的两个方向的管壁上设置连接结构，该两个连接结构可以为对称结构。图6是根据本申请实施例的可控弯曲管另一个方向的局部放大示意图。如图6所示，第二开槽112和第二开槽112＇对称。
以上，描述了根据本申请实施例的可控弯曲管结构。进一步地可选地，为了使使用者更好地对可控弯曲装置进行控制，以下，描述根据本申请实施例的控制装置。
具体地，控制装置优选为一根或多根牵引丝，用于控制可控弯曲管100朝一个或多个方向弯曲，当将外力施加在牵引丝上，即牵拉牵引丝时，可带动与牵引丝固定连接的管壁发生移动，此时该处管壁的开槽110的轴线逐渐弯曲为弧线，当该处管壁的开槽110的轴线弯曲至极限位置后继续牵拉牵引丝，可继续带动相邻的管壁处继续发生转动，从而使整根弯曲装置发生弯曲；当弯曲装置弯曲至使 用者所需的角度后，撤去施加在弯曲装置上的外力并固定牵引丝，即可使弯曲装置保持在该弯曲位置。
作为可选地一例，牵引部优选为钢丝，但并不局限于此，牵引部还可以是任何细丝状的结构，细丝状结构还可以选用任何金属或非金属材质。
为了使牵引丝与弯曲装置更好地配合，防止牵引丝在可控弯曲管100内侧活动，影响弯曲的效果，在本发明的一个实施例中，管壁上还可设有一个或多个用于固定牵引丝的固定部。本发明的一个实施例中，可优选在可控弯曲管100内侧内设置一根或两根牵引丝作为控制装置200以使可控弯曲装置可以朝向一个或两个方向弯曲。进一步地，该实施例中，当管壁上设有多个固定部时，多个固定部均布于管壁周向上，以保证弯曲装置可以朝各个方向弯曲。
更进一步地，固定部可以为固定连接于可控弯曲管100内壁上的圆管，也可以是开设于可控弯曲管100内壁上的线槽。通过固定部将牵引丝进行固定，可防止牵引丝滑脱导致可控弯曲装置失效。本发明所涉及的可控弯曲装置可以根据使用者的需要，利用控制部对管节组进行弯曲，并可以朝向使用者所需要的任何方向进行弯曲，灵活方便。以上提供对可控弯曲管进行控制的优选控制方式，本领域技术人员可知，实践中还包括诸多控制可控弯曲管向所需方向弯曲的控制方式或控制装置，而不仅仅限于上述优选实施例中所提供的控制装置。
综上所述，本发明涉及的可控弯曲管结构，其连接结构的周向相邻的任意两个轴向通孔之间共用一侧管壁，从而将可控弯曲管整体连接起来，无局部脱落的风险；同时轴向通孔的另一侧管壁上设有切缝，切缝与构成弯曲结构的夹缝相连通，从而提供了管体弯曲的所需要的弯曲空间，利于通过控制位移程度来控制管体的弯曲程度，为手术操作提供了很大的便利性，具有很高的实用价值。
此外，本发明上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何本领域技术人员皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，本领域技术人员在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。

Claims (9)

  1. 一种可控弯曲管结构，其特征在于，在所述可控弯曲管(100)的周向的至少两个方向的管壁上设置连接结构，间隔所述连接结构的所述管壁上设置弯曲结构，
    所述连接结构包括沿轴向交错排列的开槽(110)，相邻的任意两个所述开槽(110)之间共用一侧所述管壁(101)，
    所述弯曲结构至少设有沿轴向排列的夹缝(120)，所述夹缝(120)沿所述管壁的周向延伸，
    所述开槽(110)和所述夹缝(120)一一对应相连通。
  2. 根据权利要求1所述的可控弯曲管结构，其特征在于，相邻的任意两个所述开槽(110)连接对应夹缝(120)的方向不同。
  3. 根据权利要求1所述的可控弯曲管结构，其特征在于，所述连接结构包括沿轴向交错排列的开槽(110)具体包括：
    所述连接结构包括沿轴向交错排列的2N个开槽(110)，其中，所述2N个开槽包括N个开槽对，每个所述开槽对包括第一开槽(111)和第二开槽(112)。
  4. 根据权利要求3所述的可控弯曲管结构，其特征在于，所述第一开槽(111)和所述第二开槽(112)中心对称；或
    所述第一开槽(111)和所述第二开槽(112)均呈“钩”型，且所述第一开槽(111)和所述第二开槽(112)呈“八卦”式排列。
  5. 根据权利要求4所述的可控弯曲管结构，其特征在于，所述N个开槽对等间隔排列。
  6. 根据权利要求1中任一项所述的可控弯曲管结构，其特征在于，任意两个相邻的所述夹缝(120)之间的管壁上设有一个或多个开口(130)，所述开口(130)沿所述管壁的周向延伸。
  7. 根据权利要求6所述的可控弯曲管结构，其特征在于，所述开口(130)的形状为条状或椭圆状。
  8. 根据权利要求1中任一项所述的可控弯曲管结构，其特征在于，还包括控制所述可控弯曲管发生弯曲的控制装置，所述控制装置包含一根或多根牵引丝。
  9. 根据权利要求8所述的可控弯曲管结构，其特征在于，所述控制装置还包括设置于所述管壁上的一个或多个用于固定所述牵引丝的固定部，所述固定部均布于所述管壁的周向。
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