WO2015024459A1 - 一种内窥镜装置 - Google Patents
一种内窥镜装置 Download PDFInfo
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- WO2015024459A1 WO2015024459A1 PCT/CN2014/083958 CN2014083958W WO2015024459A1 WO 2015024459 A1 WO2015024459 A1 WO 2015024459A1 CN 2014083958 W CN2014083958 W CN 2014083958W WO 2015024459 A1 WO2015024459 A1 WO 2015024459A1
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- control cable
- insertion part
- cable group
- endoscope device
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Classifications
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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
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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
- A61B1/0057—Constructional details of force transmission elements, e.g. control wires
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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
- A61B1/008—Articulations
Definitions
- the present invention relates to a medical device, and more particularly to an endoscope device. Background technique
- Endoscope is a commonly used medical device that enters the human body through the natural hole of the human body or through a small incision made by surgery. It can directly peep into the changes of the relevant part.
- the plastic endoscope system can be used once, but it is expensive and is not suitable for large-scale promotion.
- Japan Olympus Company Patent No.: US5924977
- US Opielab Company Patent No.: US4825850
- Shenyang Shenda Endoscope Co., Ltd. Patent No.: CN 201010162668
- CN 201010162668 have successively disclosed disposable medical endoscope protection. system.
- these systems require a certain modification of the traditional endoscope and increase the endoscope diameter and inspection cost.
- the prior art has problems in that: a plurality of control cables, a power signal cable, and a working channel are disposed in the endoscope, and the power signal cable passes through the operating portion, the insertion portion, the bending assembly, and the camera disposed at the front end portion via the host through the host.
- the mechanism is connected, the control cable is connected to the bending part via the operating part and the insertion part, and the elongated working channel is arranged in the insertion part.
- Such a structure makes it impossible to separate the operation part from the insertion part, the bending part and the front end part, and is not convenient.
- the present invention provides a detachable endoscope apparatus in view of the deficiencies of the above endoscope.
- An endoscope apparatus includes an insertion portion provided at a front stage, an operation portion provided at a rear stage for manipulating an insertion portion, and a front end of the operation portion and a rear end of the insertion portion are provided with a connection operation portion and insertion Part of the detachable connection mechanism.
- the detachable connecting mechanism includes a groove disposed at a front end of the operating portion and a convex groove disposed at the insertion portion, and the groove and the convex groove are nested.
- the insertion portion is provided with a bending driving unit
- the operation portion is provided with a bending driving control unit
- the bending driving unit is provided with at least four upper control cable groups
- the bending driving control unit is provided with a corresponding upper control line
- the lower control cable set for the cable set is provided with a corresponding upper control line
- each control line of the upper control cable group is provided with a connecting ball
- the upper end of each control line of the lower control cable group is provided with a connecting ball
- the upper control cable group is The upper end portion is connected to the bending component
- the lower end portion of the lower control cable group is connected to the bending drive control unit
- the lower end portion of the upper control cable group and the upper end portion of the corresponding lower control cable group are passed through the bead buckle connection.
- the insertion portion is provided with a working channel, and the working channel is set as a three-in-one channel integrating air supply/supply, suction and biopsy functions.
- the detachable connection mechanism is provided with an inner tube connector, a suction channel connector and a biopsy channel connector, the inner tube connector is connected to the air supply/water supply passage, and the output end of the inner tube connector is provided with a solenoid valve.
- an upper wiring board and a lower wiring board are disposed, the upper wiring board and the lower wiring board are respectively disposed above and below the electromagnetic valve, and the upper wiring board and the lower wiring board and the upper control cable group
- a card hole is disposed, and the control lines of the upper control cable group are respectively disposed in the card hole.
- the detachable connection mechanism is provided with a PCB board, and the PCB board is provided with a cable interface, and the cable interface is used for transferring the power supply mechanism disposed in front of the insertion portion and the power supply of the host disposed behind the operation portion a signal cable, the PCB board being fixed in the insertion portion.
- the detachable connecting mechanism includes a convex groove disposed at a front end of the operating portion and a groove disposed at the insertion portion, and the groove and the convex groove are nested.
- an outer casing is provided, and the outer casing is provided as an upper cover and a lower cover, and the upper cover and the lower cover cover the detachable connection mechanism.
- the front end of the operating portion is provided with a movable buckle, and the movable buckle is fastened to the outer side of the outer casing.
- a front end of the insertion portion is provided with a fixing sleeve, and the fixing sleeve is folded back to cover the outer casing.
- a detachable connection mechanism for connecting the operation portion and the insertion portion is provided at the distal end of the operation portion and the rear end of the insertion portion, and after the use is completed, the insertion portion is removed and discarded, and a new insertion portion is replaced. , truly achieve a one-time use of the endoscope.
- FIG. 1 is a cross-sectional structural view of an endoscope apparatus according to the present invention.
- An endoscope apparatus includes an insertion portion 1 provided at a front stage, and an operation portion 13 for manipulating the insertion portion 1 provided at a rear stage, the operation portion 13 and the insertion portion 1 are connected by a detachable connection mechanism 20 at a front end of the operation portion 13 and a rear end of the insertion portion 1.
- a detachable connection mechanism 20 for connecting the operation portion 13 and the insertion portion 1 is provided at the distal end of the operation portion 13 and the rear end of the insertion portion 1. After the use, the insertion portion 1 is removed and discarded. With the new insertion part 1, the one-time use of the endoscope is truly realized.
- the detachable connecting mechanism 20 includes a groove 16 disposed at the front end of the operating portion 13 and a convex groove 17 disposed at the rear end of the insertion portion 1.
- the groove 16 and the convex groove 17 are nested.
- the fitting manner of the groove 16 and the convex groove 17 can facilitate the detachment of the operation portion 13 from the insertion portion 1. After the endoscope device disclosed in the present invention is used, the insertion portion 1 is removed, and then the insertion portion 1 is lost. Discard, to achieve a true one-time use of the endoscope.
- a casing 3 which is provided as an upper cover and a lower cover, the upper cover and the lower cover covering the detachable connection mechanism 20.
- the outer casing 3 protects the connection structure from external influences and the internal structure is not easily damaged.
- the front end of the operation portion 13 is provided with a movable buckle 12, and the movable buckle 12 is fastened to the outside of the outer casing 3.
- the movable buckle 12 can be firmly fastened to the outside of the outer casing 3, thereby controlling the cooperation of the groove and the convex groove to ensure that the operation portion 13 and the insertion portion 1 are not separated during the operation of the endoscope.
- the front end of the insertion portion 1 is provided with a fixing sleeve 2, and the fixing sleeve 2 is folded back to cover the outer casing 3.
- the fixing sleeve can firmly fix the upper cover and the lower cover of the outer casing 3, and is convenient for detaching and connecting the operation portion 13 and the insertion portion 1.
- FIG. 1 An endoscope apparatus according to Embodiment 2 of the present invention is shown in Fig. 1.
- the main technical solutions of this embodiment are basically the same as those of the first embodiment, and the features that are not explained in the present embodiment are explained in the first embodiment, and will not be described here.
- the difference between this embodiment and Embodiment 1 is that:
- the insertion portion 1 is provided with a bending drive unit
- the operation portion 13 is provided with a bending drive control unit
- the bending drive unit is provided with at least four upper control cable groups 14, and the bending drive control unit is provided with a corresponding upper control cable
- the lower control cable set 15 set by the group.
- each control line of the upper control cable set 14 is provided with a connecting ball
- the upper end of each control line of the lower control cable set 15 is provided with a connecting ball
- the upper end of the upper control cable set 14 Connected to the bending assembly, the lower end of the lower control cable set 15 is connected to the bending drive control unit, the upper portion
- the lower end portion of the control cable group 14 and the upper end portion of the corresponding lower control cable group 15 are connected by a bead waist buckle 9.
- connection ball of the upper control cable group 14 and the connection ball of the lower control cable group 15 are connected to the bead buckle 9; when the insertion portion 1 is removed, it is connected to the bead buckle 9
- the control cable set 14 and the lower control cable set 15 are separated.
- the insertion portion 1 is provided with a working channel 4 which is provided as a three-in-one channel integrating air supply/water supply, suction and biopsy functions, and the detachable connection mechanism 20 is provided with an inner tube connector 10 and a suction channel connector. 18 and a biopsy channel connector 5, the inner tube connector 10 is connected to an air supply/water supply passage, and an output end of the inner tube connector 10 is provided with a solenoid valve 7.
- the solenoid valve 7, the suction channel connector 18, and the biopsy channel connector 5 are integrated in the insertion portion 1, and after use, the insertion portion 1 is removed and discarded.
- the solenoid valve 7 is used for the switching of the working channel 4 to prevent backflow of contaminants to the operating portion 13.
- the upper wire guide plate 6 and the lower wire guide plate 8 are also provided in this embodiment.
- the upper wire guide plate 6 and the lower wire guide plate 8 are disposed above and below the solenoid valve 7, respectively.
- the upper wire guide plate 6 and the lower wire guide plate 8 are provided with a wire hole corresponding to the upper control cable group 14.
- the control lines of the upper control cable group 5 are respectively disposed in the card hole. In the smaller space in the insertion portion, the upper wire guide plate 6 and the lower wire guide plate 8 can ensure that a plurality of control cables can be entangled, thereby achieving the purpose of controlling the bending assembly.
- the detachable connection mechanism 20 is also provided with a PCB board 11.
- the PCB board 11 is provided with a cable interface for switching the image pickup mechanism provided in front of the insertion portion 1 and the power signal cable of the main unit disposed behind the operation portion 13.
- the PCB board 11 is fixed in the insertion portion.
- the PCB board 11 realizes the convenient connection and separation of the power signal cable and the camera mechanism of the host output.
- control cable, the power signal cable and the working channel are integrated into the detachable connecting mechanism 20, and the separation and connection of the insertion portion 1 and the operating portion 13 are realized, and the user can conveniently separate and connect the operating portion 13 and Insert part 1.
- the single use of the insertion portion 1 can effectively prevent cross infection.
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Abstract
一种内窥镜装置,包括有设置在前段的插入部(1),设置在后段的用于操控插入部(1)的操作部(13),所述操作部(13)前端和所述插入部(1)后端设置有用于连接操作部(13)与插入部(1)的可拆卸连接机构(20),通过该内窥镜装置,在操作部(13)前端和插入部(1)后端设置有用于连接操作部(13)与插入部(1)的可拆卸连接机构(20),使用完毕后,将插入部(1)拆除丢弃,换装新的插入部(1),真正实现了内窥镜的一次性使用。
Description
一种内窥镜装置
技术领域
本发明涉及一种医疗器械, 特别涉及一种内窥镜装置。 背景技术
内窥镜是一种常用的医疗器械, 经人体的天然孔道, 或者是经手术做的小 切口进入人体内, 可直接窥视有关部位的变化。
传统上, 因为内部的精密电子元件和复杂结构, 内窥镜清洗灭菌难度较大, 存在医源性交叉感染风险。 同时, 现行的内镜消毒剂如 2%碱性戊二醛, 存在着 消毒时间较长和刺激性等问题。 目前医学内窥镜价格和维修费用高昂, 多数医 院无力购入足够数量内窥镜进行消毒轮换, 并导致内窥镜难以在基层医院和急 救医疗中推行。
因此有必要研发一次性使用的简易内窥镜, 在内窥镜与人体接触部位换用 一次性部件, 为消化系统疾病的筛查和诊断提供一种廉价而安全的工具。
目前, 胶嚢内镜系统虽然可以一次性使用, 但费用昂贵, 不适用于大规模 推广。 另外日本奥林巴斯公司 (专利号: US5924977 ), 美国 Opielab公司 (专 利号: US4825850 )以及沈阳沈大内窥镜有限公司 (专利号: CN 201010162668 ) 均相继公开了一次性医用内窥镜防护系统。 但这些系统均需传统内镜做一定改 造, 并且增加了内镜直径和检查费用。
现有技术存在的问题是: 内窥镜内设置有大量控制线缆、 电源信号线缆和 工作通道, 电源信号线缆经由主机穿过操作部、 插入部、 弯曲组件与设置于前 端部的摄像机构连接, 控制线缆经操作部、 插入部与弯曲组件连接, 插入部内 设置有细长的工作通道, 这样的结构导致了无法实现操作部与插入部、 弯曲组 件、 前端部的分离, 不能便捷的拆卸插入部、 弯曲组件和前端部, 从而不能实 现内窥镜的一次性使用, 同样也就无法解决插入部重复使用情况下, 如果消毒 不彻底会造成患者重复感染的问题。 发明内容
本发明针对上述内窥镜存在的不足, 提供一种可拆卸的内窥镜装置。
一种内窥镜装置, 包括有设置在前段的插入部, 设置在后段的用于操控插 入部的操作部, 所述操作部前端和所述插入部后端设置有用于连接操作部与插 入部的可拆卸连接机构。
其中, 所述可拆卸连接机构包括有设置于操作部前端的凹槽和设置于插入 部的凸槽, 所述凹槽和所述凸槽嵌套配合。
其中, 所述插入部设置有弯曲驱动单元, 所述操作部设置有弯曲驱动控制 单元, 所述弯曲驱动单元设置有至少四条上控制线缆组, 所述弯曲驱动控制单 元设置有对应上控制线缆组设置的下控制线缆组。
其中, 所述上控制线缆组的每条控制线的下端部设置有连接球, 所述下控 制线缆组的每条控制线的上端部设置有连接球, 所述上控制线缆组的上端部与 弯曲组件连接, 所述下控制线缆组下端部与所述弯曲驱动控制单元连接, 所述 上控制线缆组的下端部与对应的下控制线缆组的上端部通过珠腰扣连接。
其中, 所述插入部设置有工作通道,所述工作通道设置为集成送气 /送水、 吸 引和活检功能的三合一通道。 所述可拆卸连接机构设置有内管连接器、 吸引通 道连接器和活检通道连接器, 所述内管连接器连通送气 /送水通道, 所述内管连 接器的输出端设置有电磁阀。
其中, 设置有上导线板和下导线板, 所述上导线板和下导线板分别设置于 所述电磁阀的上方和下方, 所述上导线板和下导线板与所述上控制线缆组对应 设置有卡线孔, 所述上控制线缆组的控制线分别穿设于所述卡线孔内。
其中, 所述可拆卸连接机构设置有 PCB板, 所述 PCB板设置有线缆接口, 所述线缆接口用于转接设置于插入部前方的摄像机构和设置于操作部后方的主 机的电源信号线缆, 所述 PCB板固定于所述插入部内。
其中, 所述可拆卸连接机构包括有设置于操作部前端的凸槽、 设置于插入 部的凹槽, 所述凹槽和所述凸槽嵌套配合。
其中, 设置有外壳, 所述外壳设置为上盖和下盖, 所述上盖和下盖包覆所 述可拆卸连接机构。
其中, 所述操作部前端设置有活动扣, 所述活动扣扣接于所述外壳外侧。 其中, 所述插入部前端设置有固定套, 所述固定套向后反折包覆所述外壳。 本发明的有益效果是:
通过本发明的内窥镜装置, 在操作部前端和插入部后端设置有用于连接操 作部与插入部的可拆卸连接机构, 使用完毕后, 将插入部拆除丟弃, 换装新的 插入部, 真正实现了内窥镜的一次性使用。 附图说明
图 1为本发明一种内窥镜装置的剖面结构示意图;
1——插入部、 2——固定套、 3——外壳、 4——工作通道、 5——活检通道 连接器、 6——上导线板、 7——电磁阀、 8——下导线板、 9——珠腰扣、 10— 一内管连接器、 11—— PCB 板、 12——活动扣、 13——操作部、 14——上控制 线缆组、 15—一下控制线缆组、 16—一凹槽、 17—一凸槽、 18—一吸引通道连 接器。
具体实施方式
以下结合附图和实施例对本发明作进一步详细描述。
实施例 1
根据本发明的实施例 1的一种内窥镜装置如图 1所示, 包括有设置在前段 的插入部 1, 设置在后段的用于操控插入部 1的操作部 13, 所述操作部 13和所 述插入部 1通过可拆卸连接机构 20连接, 连接处位于操作部 13的前端和插入 部 1的后端。
本发明的内窥镜装置, 在操作部 13前端和插入部 1后端设置有用于连接操 作部 13与插入部 1的可拆卸连接机构 20, 使用完毕后, 将插入部 1拆除丟弃, 换装新的插入部 1, 真正实现了内窥镜的一次性使用。
具体的, 所述可拆卸连接机构 20包括有设置于操作部 13前端的凹槽 16和 设置于插入部 1后端的凸槽 17, 所述凹槽 16和所述凸槽 17嵌套配合。
凹槽 16和凸槽 17的配合方式, 能够方便的将操作部 13与插入部 1脱离, 本发明所公开的内窥镜装置在使用完毕后, 将插入部 1 拆除, 然后将插入部 1 丟弃, 实现内窥镜的真正一次性使用。
还设置有外壳 3, 所述外壳 3设置为上盖和下盖, 所述上盖和下盖包覆所述 可拆卸连接机构 20。 外壳 3保护连接结构, 使其不受外界影响, 内部结构不易 损坏。
操作部 13的前端设置有活动扣 12,所述活动扣 12扣接于所述外壳 3外侧。 活动扣 12能够稳固的扣在外壳 3外侧, 进而控制凹槽和凸槽的配合, 保证在内 窥镜运转过程中, 操作部 13与插入部 1不分离。
插入部 1的前端设置有固定套 2, 所述固定套 2向后反折包覆所述外壳 3。 该固定套能够稳固地固定外壳 3的上盖和下盖, 方便拆卸和连接操作部 13和插 入部 1。
实施例 2
本发明实施例 2的一种内窥镜装置如图 1所示。 本实施例的主要技术方案 与实施例 1基本相同, 在本实施例中未作解释的特征, 釆用实施例 1中的解释, 在此不再进行赞述。 本实施例与实施例 1的区别在于:
插入部 1设置有弯曲驱动单元, 所述操作部 13设置有弯曲驱动控制单元, 所述弯曲驱动单元设置有至少四条上控制线缆组 14, 所述弯曲驱动控制单元设 置有对应上控制线缆组设置的下控制线缆组 15。
上控制线缆组 14的每条控制线的下端部设置有连接球, 所述下控制线缆组 15的每条控制线的上端部设置有连接球,所述上控制线缆组 14的上端部与弯曲 组件连接, 所述下控制线缆组 15下端部与所述弯曲驱动控制单元连接, 所述上
控制线缆组 14的下端部与对应的下控制线缆组 15的上端部通过珠腰扣 9连接。 连接插入部 1时, 将上控制线缆组 14的连接球和下控制线缆组 15的连接 球卡接在珠腰扣 9上; 拆除插入部 1时, 将连接在珠腰扣 9的上控制线缆组 14 和下控制线缆组 15分离。
插入部 1设置有工作通道 4, 所述工作通道 4设置为集成送气 /送水、吸引和 活检功能的三合一通道,所述可拆卸连接机构 20设置有内管连接器 10、 吸引通 道连接器 18和活检通道连接器 5, 所述内管连接器 10连通送气 /送水通道, 所 述内管连接器 10的输出端设置有电磁阀 7。 电磁阀 7、 吸引通道连接器 18和活 检通道连接器 5集成于插入部 1 内, 使用完毕后, 将插入部 1拆卸丟弃。 电磁 阀 7用于工作通道 4的开关, 避免污染物反流至操作部 13。
本实施例中还设置有上导线板 6和下导线板 8。上导线板 6和下导线板 8分 别设置于电磁阀 7的上方和下方。 上导线板 6和下导线板 8与上控制线缆组 14 对应设置有卡线孔。 上控制线缆组 5 的控制线分别穿设于所述卡线孔内。 在插 入部内较小的空间内, 上导线板 6和下导线板 8能够保证多根控制线缆能够不 缠绕, 实现控制弯曲组件的目的。
可拆卸连接机构 20还设置有 PCB板 11。 PCB板 11设置有线缆接口, 用于 转接设置于插入部 1前方的摄像机构和设置于操作部 13后方的主机的电源信号 线缆。 PCB板 11固定于所述插入部内。 PCB板 11实现了主机输出的电源信号 线缆与摄像机构的方便连接和分离。
通过上述结构将控制线缆、 电源信号线缆和工作通道集成于可拆卸连接机 构 20内, 实现了插入部 1与操作部 13的分离和连接, 使用者能够方便的分离 和连接操作部 13和插入部 1。 插入部 1的一次性使用, 可以有效防止交叉感染 的发生。
以上实施例仅用以说明本发明的技术方案的具体实现方式而非对本发明保 护范围的限制, 尽管参照较佳实施例对本发明作了详细说明, 本领域的普通技 术人员应当理解, 可以对本发明的技术方案进行修改或者等同替换, 而不脱离 本发明的实质和范围。
Claims
1、 一种内窥镜装置, 包括有设置在前段的插入部, 设置在后段的用于操控 插入部的操作部, 其特征在于: 所述操作部前端和所述插入部后端设置有用于 连接操作部与插入部的可拆卸连接机构。
2、 根据权利要求 1所述的一种内窥镜装置, 其特征在于: 所述可拆卸连接 机构包括有设置于所述操作部前端的凹槽和设置于所述插入部后端的凸槽, 所 述凹槽和凸槽嵌套配合。
3、 根据权利要求 1所述的一种内窥镜装置, 其特征在于: 所述插入部设置 有弯曲驱动单元, 所述操作部设置有弯曲驱动控制单元, 所述弯曲驱动单元设 置有至少四条上控制线缆组, 所述弯曲驱动控制单元设置有对应上控制线缆组 设置的下控制线缆组; 所述上控制线缆组的每条控制线的下端部设置有连接球, 所述下控制线缆组的每条控制线的上端部设置有连接球, 所述上控制线缆组的 上端部与弯曲组件连接, 所述下控制线缆组下端部与所述弯曲驱动控制单元连 接, 所述上控制线缆组的下端部与对应的下控制线缆组的上端部通过珠腰扣连 接。
4、 根据权利要求 1所述的一种内窥镜装置, 其特征在于: 所述插入部设置 有工作通道,所述工作通道设置为集成送气 /送水、吸引和活检功能的三合一通道, 所述可拆卸连接机构设置有内管连接器、 吸引连接器和活检通道连接器, 所述 内管连接器连通送气 /送水通道, 所述内管连接器的输出端设置有电磁阀。
5、 根据权利要求 4所述的一种内窥镜装置, 其特征在于: 设置有两个导线 板, 两个所述导线板分别设置于所述电磁阀的上方和下方, 两个所述导线板与 所述上控制线缆组对应设置有卡线孔, 所述上控制线缆组的控制线分别穿设于 所述卡线孔内。
6、 根据权利要求 1所述的一种内窥镜装置, 其特征在于: 所述可拆卸连接 机构设置有 PCB板, 所述 PCB板设置有线缆接口, 所述线缆接口用于转接设置 于插入部前方的摄像机构和设置于操作部后方的主机的电源信号线缆, 所述 PCB板固定于所述插入部内。
7、 根据权利要求 1所述的一种内窥镜装置, 其特征在于: 所述可拆卸连接
机构包括有设置于操作部前端的凸槽和设置于插入部的凹槽, 所述凹槽和所述 凸槽嵌套配合。
8、 根据权利要求 1所述的一种内窥镜装置, 其特征在于: 设置有外壳, 所 述外壳设置为上盖和下盖, 所述上盖和下盖包覆所述可拆卸连接机构。
9、 根据权利要求 8所述的一种内窥镜装置, 其特征在于: 所述操作部前端 设置有活动扣, 所述活动扣扣接于所述外壳外侧。
10、 根据权利要求 8 所述的一种内窥镜装置, 其特征在于: 所述插入部前 端设置有固定套, 所述固定套向后反折包覆所述上盖和下盖。
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