WO2024027161A1 - 一种内窥镜手柄的可抛弃段及内窥镜 - Google Patents

一种内窥镜手柄的可抛弃段及内窥镜 Download PDF

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Publication number
WO2024027161A1
WO2024027161A1 PCT/CN2023/081429 CN2023081429W WO2024027161A1 WO 2024027161 A1 WO2024027161 A1 WO 2024027161A1 CN 2023081429 W CN2023081429 W CN 2023081429W WO 2024027161 A1 WO2024027161 A1 WO 2024027161A1
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WIPO (PCT)
Prior art keywords
section
disposable
endoscope
transmission
assembly
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Application number
PCT/CN2023/081429
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English (en)
French (fr)
Inventor
周震华
崔华星
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上海众芯工业产品设计有限公司
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Publication of WO2024027161A1 publication Critical patent/WO2024027161A1/zh

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Classifications

    • 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
    • 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
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00066—Proximal part of endoscope body, e.g. handles
    • 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
    • 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
    • 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
    • A61B1/307—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 for the urinary organs, e.g. urethroscopes, cystoscopes
    • 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
    • A61B1/313—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 for introducing through surgical openings, e.g. laparoscopes
    • A61B1/3132—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 for introducing through surgical openings, e.g. laparoscopes for laparoscopy

Definitions

  • the present invention relates to the technical field of medical devices, and in particular to a disposable section of an endoscope handle and an endoscope.
  • an endoscope can enter the body and take images of the lesion through a camera packaged at its distal end to provide doctors with sufficient diagnostic information to treat the disease.
  • the endoscope includes an endoscope handle, and the doctor The bending action of the active bending section of the endoscope can be controlled by operating the endoscope handle.
  • a detachable endoscope handle which includes a reusable section and a disposable section. After use, the disposable section is discarded, which can not only solve the problem of cross-infection, but also reduce the risk of endoscopes. Discard costs.
  • Endoscopes can be divided into oral endoscopes, urethrocystoscopes, laparoscopes, arthroscopes, etc. according to the access site.
  • Different types of detachable endoscopes have different requirements for the bending amplitude of the active bending section; therefore, each type has The disposable section and the reusable section of the endoscope are matched with each other, and the reusable section of multiple types of endoscopes cannot be replaced. This makes the reusable section of the endoscope a technology with poor versatility and high manufacturing cost. question.
  • the present invention provides a disposable section of an endoscope handle.
  • the disposable section includes:
  • Transmission assembly the transmission assembly includes a coaxially linked input gear and a transmission member, and the input gear and the transmission member are rotatably located in the housing;
  • the input assembly includes two first push rods, the two first push rods are symmetrically engaged on both sides of the input gear, so that the two first push rods move in different directions synchronously;
  • Output assembly the output assembly includes a traction rope, the traction rope connects the transmission member and the endoscope active bending section, so that the endoscope active bending section can bend with the rotation of the input gear.
  • the transmission member includes an output gear
  • the output assembly includes two second push rods
  • the two second push rods are symmetrically meshed with both sides of the output gear, so that the two second push rods The rods move in different directions simultaneously, and the traction rope is connected to the distal end of the second push rod.
  • the proximal end of the first push rod is provided with a contact portion
  • the distal end of the second push rod is provided with a traction rope connection portion
  • the transmission member includes a wheel disk, and the traction rope is connected to the wheel disk.
  • the transmission member includes a crank
  • the output assembly includes a connecting rod and a traction rope connector
  • the traction rope connector is movably provided on the housing, and one end of the connecting rod rotates with the crank connection, the other end of the connecting rod is rotationally connected to the traction rope connecting piece.
  • a slide rail is provided in the housing, the slide rail extends along the axial direction of the housing, and the traction rope connector is in sliding fit with the slide rail.
  • the input gear is integrally connected to the transmission member; or, the transmission assembly further includes a transmission shaft rotatably provided in the housing, and the input gear and the transmission member are sleeved on the transmission shaft. .
  • the input component is connected to the output component through the transmission component, And a transmission structure is formed, and one or two transmission structures are provided in the housing.
  • the housing is provided with a docking plug.
  • the two transmission structures are distributed on both sides of the docking plug.
  • the present invention also provides an endoscope, including a reusable segment and a plurality of the aforementioned disposable segments.
  • Each of the disposable segments is detachably connected to the reusable segment, and any two of the disposable segments are detachably connected to the reusable segment.
  • the maximum bending angles of the active bending sections between the two endoscopes formed by connecting the disposable section to the reusable section are different.
  • the input component is connected to the output component through the transmission component.
  • the input components of multiple disposable segments can always match the same reusable segment, and the outputs of multiple disposable segments
  • the components can be different.
  • the design parameters remain consistent and always match the same reusable segment, so that the maximum bending angle that the active bending section of the endoscope formed by the connection can be bent is different, so that the active bending section of the connected endoscope can be bent.
  • the maximum bending angle is different.
  • Figure 1 is a schematic structural diagram of a disposable section in Embodiment 1 of the present application.
  • Figure 2 is a cross-sectional view of the disposable section of Embodiment 1 of the present application.
  • FIG. 3 is a schematic structural diagram of the transmission assembly according to Embodiment 1 of the present application.
  • Figure 4 is a schematic connection diagram of the input component, transmission component and output component in Embodiment 1 of the present application;
  • Figure 5 is a schematic diagram of the internal structure of the disposable section in Embodiment 1 of the present application.
  • Figure 6 is a schematic structural diagram of the transmission assembly according to Embodiment 2 of the present application.
  • Figure 7 is a schematic diagram of the connection between the transmission component and the output component in Embodiment 2 of the present application.
  • Figure 8 is a schematic connection diagram of the input component, transmission component and output component in Embodiment 2 of the present application.
  • Figure 9 is a schematic diagram of the internal structure of the disposable section in Embodiment 2 of the present application.
  • Figure 10 is a schematic structural diagram of the transmission assembly in Embodiment 3 of the present application.
  • Figure 11 is a schematic connection diagram of the input component, transmission component and output component in Embodiment 3 of the present application.
  • Figure 12 is a schematic diagram of the internal structure of the disposable section in Embodiment 3 of the present application.
  • first”, “second”, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. should understand this Data so used are interchangeable under appropriate circumstances so that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and terms distinguished by "first”, “second”, etc. are generally It is a category, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • proximal end and distal end refer to the far and near position of the structure relative to human body operation in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; “proximal end” The positional relationship with “remote” is relative, not absolute.
  • inventions of the present application disclose a disposable section of an endoscope handle.
  • the disclosed disposable section of the endoscope handle includes a housing 100, a transmission assembly 200, an input assembly 300 and an output assembly. 400.
  • the housing 100 is a basic component of a disposable segment and can provide an installation foundation for the transmission assembly 200, the input assembly 300 and the output assembly 400.
  • the housing 100 is provided with a receiving space
  • the transmission assembly 200 is rotatably installed in the housing 100
  • at least part of the input assembly 300 is located in the housing 100, and is transmission-cooperated with the transmission assembly 200
  • the input assembly 300 is used to communicate with the endoscope.
  • the reusable section of the endoscope handle is connected.
  • At least part of the output assembly 400 is located in the housing 100 and is in transmission cooperation with the transmission assembly 200.
  • the output assembly 400 is used to connect the active bending section of the endoscope.
  • the transmission assembly 200 includes an input gear 210 and a transmission member arranged coaxially.
  • the input gear 210 and the transmission member are coaxially linked.
  • the transmission member rotates synchronously with the input gear 210 .
  • the input assembly 300 includes two first push rods 310.
  • the first push rods 310 are provided with a first rack extending along its axial direction.
  • the two first push rods 310 are symmetrically engaged with the input through the first racks.
  • On both sides of the gear 210 when the input gear 210 rotates, the two first push rods 310 move in different directions simultaneously.
  • the input assembly 300 serves as the power input end of the disposable section and is used for transmission connection with the driving mechanism in the reusable section.
  • the disposable section is connected to the reusable section, the endoscope handle is operated, and the drive mechanism in the reusable section is operated.
  • the mechanism can push the first push rod 310 to move, thereby driving the input gear 210 to rotate.
  • the output assembly 400 includes a traction rope 410.
  • the traction rope 410 connects the transmission member and the active bending section of the endoscope. When the transmission member rotates, the traction rope 410 performs a traction action on the active bending section of the endoscope, thereby causing the active bending section of the endoscope to move. Bend in a preset direction.
  • the input assembly 300 is connected to the output assembly 400 through the transmission assembly 200.
  • the input assembly 300 of multiple disposable segments can always be matched with the same reusable segment.
  • the output components 400 of the disposable segments can be different.
  • the disposable segments that match the usage scenarios can be replaced, that is, the disposable segments of the transmission parts and output components 400 with different design parameters are replaced.
  • the active bending segment of the endoscope formed by connecting the disposable segments to the reusable segment has different maximum bending angles and can be switched according to different use scenarios; at the same time, each different disposable segment can be bent with Matching the same reusable section makes the reusable section universal, effectively reducing the production cost and use cost of the endoscope.
  • the transmission member may include an output gear 220
  • the output assembly 400 includes two second push rods 420 .
  • the second push rods 420 are provided with a second rack extending along its axial direction.
  • Two second push rods 420 are symmetrically meshed on both sides of the transmission member.
  • the traction rope 410 is connected to the far end of the second push rod 420.
  • the output gear 220 follows the rotation of the input gear 210
  • the two second push rods 420 move in different directions synchronously. , causing the traction rope 410 to pull the active bending section of the endoscope to perform a bending action in a preset direction.
  • the proximal end of the first push rod 310 is provided with a contact portion 311.
  • the contact portion 311 is used to contact the driving mechanism in the reusable section.
  • the distal end of the second push rod 420 is provided with a traction rope.
  • the connecting part 421 connects the traction rope 410 to the traction rope connection part 421 .
  • the cross-section of the contact portion 311 is circular, and the contact portion 311 is slidably engaged with the housing 100.
  • the first push rod 310 can be lifted Smooth movement and avoid lag.
  • the diameter of the graduation circle of the input gear 210 is different from the diameter of the graduation circle of the output gear 220.
  • the first stroke of the first push rod 310 is the same as the first stroke of the second push rod 420.
  • the second stroke is different.
  • the design parameters of the input gear 210 and the first push rod 310 remain unchanged, the design parameters of the output gear 220 and the second push rod 320 are changed, such as changing the graduation circle diameter of the output gear 220 and corresponding changes.
  • the distance between the two second push rods 420 can change the maximum bending angle of the active bending section of the endoscope.
  • the diameter of the pitch circle of the input gear 210 is larger than the diameter of the pitch circle of the output gear 220 . That is to say, in the transmission assembly 200 , the input gear 210 is a large gear and the output gear 220 is a small gear.
  • the large gear drives the small gear to rotate, so that the second stroke of the second push rod 420 is smaller than the first stroke of the first push rod 410, which can reduce the maximum bending angle of the active bending section of the endoscope and make the endoscope active bending section Matching the corresponding usage scenarios; at the same time, using a large gear to drive the small gear to rotate can make the active bending section of the endoscope bend more carefully, so that the active bending section of the endoscope can accurately face the lesion.
  • the pitch circle diameter of the input gear 210 is smaller than the pitch circle diameter of the output gear 220 . That is to say, in the transmission assembly 200 , the input gear 210 is a pinion gear and the output gear 220 is a pinion gear.
  • the large gear drives the large gear to rotate, making the second stroke larger than the first stroke, thereby increasing the maximum bending angle of the active bending section of the endoscope and matching the bending amplitude of the endoscope's active bending section with its use scenario.
  • the design parameters of the output gear 220 (such as the diameter of the graduation circle of the output gear 220) are determined, and the changes pointed out in the embodiment of the present application are
  • the design parameters of the transmission part refer to the different design parameters of the output gear 220 of the next disposable segment to be replaced and the previous disposable segment.
  • Multiple disposable segments are adapted to the same reusable segment, so that the reusable segment can be used in multiple This usage scenario is universal.
  • the input gear 210 and the output gear 220 are coaxially linked.
  • the input gear 210 and the output gear 220 are coaxially and integrally connected to form a double gear, which has high structural strength and reduces Manpower and material cost;
  • the transmission assembly 200 has a split structure, and the transmission assembly 200 also includes a transmission shaft, and the input gear 210 and the output gear 220 are respectively sleeved on the transmission shaft. It should be noted that this application does not limit the specific connection method of the input gear 210 and the output gear 220, as long as the synchronous rotation of the two gears with different pitch circle diameters can be achieved.
  • the transmission component may include a wheel 230 , that is, the transmission assembly 200 is formed by coaxially connecting the input gear 210 and the wheel 230 , and the traction rope 410 is connected to the wheel. 230.
  • the traction rope 410 can be wrapped around the wheel disk 230, and the wheel disk 230 rotates to drive the traction rope 410 to pull the active bending section of the endoscope; in another optional embodiment, the traction rope 410 can include The first traction section and the second traction section are respectively connected to both ends of the wheel disk 230 in the radial direction. The rotation of the wheel disk 230 drives the traction rope 410 to pull the active bending section of the endoscope.
  • the use scenario of the endoscope changes, for example, changing the urethrocystoscope to a laparoscope
  • the diameter of 230 can change the traction stroke of the traction rope 410, thereby changing the maximum bending angle of the active bending section of the endoscope, so that the maximum bending angle of the endoscope's active bending section can adapt to the use environment.
  • the wheel plate 230 and the input gear 210 can be connected coaxially and integrally, or the transmission shaft can realize synchronous rotation, which is not limited in this embodiment.
  • the transmission component may include a crank 240
  • the output assembly 400 includes a connecting rod 430 and a traction rope connector 440
  • one end of the connecting rod 430 is rotationally connected to the crank 240
  • the other end of the connecting rod 430 is rotationally connected to the traction rope connector 440.
  • the traction rope connector 440 is movably provided on the housing 100, and the moving direction of the traction rope connector 440 is the axial direction of the housing 100. ;
  • the connecting rod 430 drives the traction rope connector 440 to move.
  • a slide rail 450 is provided in the housing 100.
  • the slide rail 450 extends along the axial direction of the housing 100.
  • the traction rope connector 440 is in sliding fit with the slide rail 450.
  • the slide rail 450 has a preset guide track, so that the traction rope connector 440 moves along the extension direction of the slide rail 450, making the movement of the traction rope connector 440 more stable and more precise.
  • the transmission assembly 200 may include two cranks 240
  • the output assembly 400 may include two connecting rods 430 and two traction rope connectors 440 .
  • the two cranks 240 are distributed on both sides of the input gear 210 in the axial direction. side, two connecting rods 430 are connected to two cranks 240 respectively, and each connecting rod 430 is connected to a traction rope connector 440; in this case, the active bending section of the endoscope can be bent in two opposite directions, It can also prevent the two connecting rods 430 from interfering with each other during movement, thereby improving the stability of the disposable section of the endoscope handle.
  • the two cranks 240 are symmetrical about the axial direction of the housing 100 to ensure that the two traction rope connectors 440 move in synchronous reverse directions.
  • the slide rail 450 includes a connecting part and two guide parts.
  • the two guide parts are connected to both ends of the connecting part so that the slide rail 450 has an I-shaped structure.
  • the lead rope connectors 440 are respectively slidably matched with one guide portion; with this arrangement, the two traction rope connectors 440 are slidably matched with one slide rail 450, which can reduce the space occupied by the output assembly 400.
  • This embodiment is a further improvement based on the above-mentioned Embodiment 1, 2 or 3.
  • the following structure is particularly adopted:
  • the input component 300 is connected to the output component 400 through the transmission component 200 and forms a transmission structure.
  • the operating reusable section can control the bending of the active bending section of the endoscope in two directions; in another optional
  • the operating reusable section can control the active bending section of the endoscope in four direction bending.
  • the housing 100 is provided with a docking plug 500.
  • the docking plug 500 can be docked with the reusable section to achieve electrical connection, thereby transmitting image data captured by the endoscope front-end assembly.
  • the docking plug 500 is arranged in the middle of the proximal end of the housing 100, and the two transmission structures are distributed on both sides of the docking plug; such an arrangement can facilitate the insertion of the disposable section and the reusable section. assembly; at the same time, an accommodation space is formed between the two transmission structures, which can accommodate the docking plug 500 part and the proximal part of the endoscope insertion tube, thereby achieving a reasonable layout of the radial space of the housing 100, which is conducive to the internal The handle of the speculum is developing towards miniaturization.
  • the embodiment of the present application also discloses an endoscope, which includes a reusable segment and a plurality of the aforementioned disposable segments.
  • the reusable segment can be detachably connected with any one of the multiple disposable segments to form an endoscope handle. Any two disposable segments are connected with the reusable segments to form
  • the disposable and reusable sections can be detachably connected using threaded connectors, snap connections, magnetic connections, etc. This application does not limit the specific connection method of the disposable section and the reusable section.

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Abstract

一种内窥镜手柄的可抛弃段及内窥镜，内窥镜手柄的可抛弃段包括壳体(100)、传动组件(200)、输入组件(300)和输出组件(400)，传动组件(200)包括同轴联动的输入齿轮(210)和传动件，输入组件(300)包括两个对称啮合于输入齿轮(210)的两侧的第一推杆(310)，输出组件(400)包括牵引绳(410)，牵引绳(410)连接传动件和内窥镜主动弯曲段；输入组件(300)通过传动组件(200)与输出组件(400)连接，多个可抛弃段的输入组件(300)可以始终与同一个重复使用段相匹配，而多个可抛弃段的输出组件(400)可以不同，从而使得连接形成的内窥镜的主动弯曲段能够弯曲的最大弯曲角度不同，从而满足不同的使用场景，使用场景发生变化时，更换与使用场景的相匹配的可抛弃段即可，使得重复使用段具有通用性，有效降低了使用成本。

Description

一种内窥镜手柄的可抛弃段及内窥镜 技术领域
本发明涉及医疗器械技术领域，尤其涉及一种内窥镜手柄的可抛弃段及内窥镜。
背景技术
内窥镜作为一种医疗诊断器械，其可以进入体内，通过其远端封装的摄像头，拍摄病灶处的图像，为医生提供充分的诊断信息以治疗疾病，内窥镜包括内窥镜手柄，医生可以通过操作内窥镜手柄控制内窥镜主动弯曲段的弯曲动作。
相关技术中存在着一种拆卸式内窥镜手柄，其包括重复使用段和可抛弃段，在使用完毕后，将可抛弃段抛弃，既可以解决交叉感染的问题，又能降低内窥镜的丢弃成本。
内窥镜按到达部位可以分为口腔内窥镜、尿道膀胱镜、腹腔镜和关节镜等，不同种类的拆卸式内窥镜的主动弯曲段的弯曲幅度的要求并不相同；因此，每类内窥镜的可抛弃段和重复使用段是相互匹配的，多个种类的内窥镜的重复使用段无法替换使用，这使得内窥镜的重复使用段存在着通用性差和制造成本高的技术问题。
发明内容
基于此，有必要针对上述技术问题，提供一种内窥镜手柄的可抛弃段及内窥镜。
本发明采用下述技术方案：
第一方面，本发明提供了一种内窥镜手柄的可抛弃段，可抛弃段包括：
壳体；
传动组件，所述传动组件包括同轴联动的输入齿轮和传动件，所述输入齿轮和所述传动件转动设于所述壳体内；
输入组件，所述输入组件包括两个第一推杆，两个所述第一推杆对称啮合于所述输入齿轮的两侧，使两个所述第一推杆同步异向移动；
输出组件，所述输出组件包括牵引绳，所述牵引绳连接所述传动件和所述内窥镜主动弯曲段，使所述内窥镜主动弯曲段可随所述输入齿轮的转动而弯曲。
进一步地，所述传动件包括输出齿轮，所述输出组件包括两个第二推杆，两个所述第二推杆对称啮合于所述输出齿轮的两侧，使两个所述第二推杆同步异向移动，所述牵引绳连接所述第二推杆的远端。
进一步地，所述第一推杆的近端设置有抵接部，所述第二推杆的远端设置有牵引绳连接部。
进一步地，所述传动件包括轮盘，所述牵引绳连接所述轮盘。
进一步地，所述传动件包括曲柄，所述输出组件包括连杆和牵引绳连接件，所述牵引绳连接件可移动地设于所述壳体，所述连杆的一端与所述曲柄转动连接，所述连杆的另一端与所述牵引绳连接件转动连接。
进一步地，所述壳体内设置有滑轨，所述滑轨沿所述壳体的轴向延伸设置，所述牵引绳连接件与所述滑轨滑动配合。
进一步地，所述输入齿轮与所述传动件一体连接；或者，所述传动组件还包括转动设于所述壳体内的传动轴，所述输入齿轮和所述传动件套接于所述传动轴。
进一步地，所述输入组件通过所述传动组件与所述输出组件相连、 并形成一个传动结构，所述壳体内设置有一个或两个传动结构。
进一步地，所述壳体设置有对接插头，在所述传动结构为两个的情况下，两个所述传动结构分布于所述对接插头的两侧。
第二方面，本发明还提供了一种内窥镜，包括重复使用段和多个前述的可抛弃段，每个所述可抛弃段与所述重复使用段可拆卸连接，任意两个所述可抛弃段分别与重复使用段连接形成的两个内窥镜之间的主动弯曲段的最大弯曲角度不同。
本发明采用的技术方案能够达到以下有益效果：
本发明公开的内窥镜手柄的可抛弃段，输入组件通过传动组件与输出组件连接，多个可抛弃段的输入组件可以始终与同一个重复使用段相匹配，而多个可抛弃段的输出组件可以不同，针对不同的使用场景，可以更换与使用场景相互配的可抛弃段，即更换带有不同设计参数的传动件和输出组件，而多种类型的可抛弃段的输入齿轮和输入组件的设计参数保持一致，始终与同一重复使用段相匹配，从而使得连接形成的内窥镜的主动弯曲段能够弯曲的最大弯曲角度不同，从而使得连接形成的内窥镜的主动弯曲段能够弯曲的最大弯曲角度不同。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例一的可抛弃段的结构示意图；
图2是本申请实施例一的可抛弃段的剖视图；
图3是本申请实施例一的传动组件的结构示意图；
图4是本申请实施例一的输入组件、传动组件和输出组件的连接示意图；
图5是本申请实施例一的可抛弃段的内部结构示意图；
图6是本申请实施例二的传动组件的结构示意图；
图7是本申请实施例二的传动组件与输出组件的连接示意图；
图8是本申请实施例二的输入组件、传动组件和输出组件的连接示意图；
图9是本申请实施例二的可抛弃段的内部结构示意图；
图10是本申请实施例三的传动组件的结构示意图；
图11是本申请实施例三的输入组件、传动组件和输出组件的连接示意图；
图12是本申请实施例三的可抛弃段的内部结构示意图。
图中：
100-壳体；200-传动组件，210-输入齿轮，220-输出齿轮，230-轮盘，240-曲柄，300-输入组件，310-第一推杆，311-抵接部，400-输出组件，410-牵引绳，420-第二推杆，421-牵引绳连接部，430-连杆，440-牵引绳连接件，450-滑轨；500-对接插头。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将对本发明的技术方案进行详细的描述。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的前提下所得到的所有其它实施方式，都属于本发明所保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这 样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
在本发明中，“近端”和“远端”是本结构在使用环境下，相对于人体操作的远近位置，以方便对部件之间的位置关系进行描述，同时方便理解；“近端”和“远端”是相对而言的位置关系，而非绝对的。
实施例一
下面结合附图1至图5，通过具体的实施例及其应用场景对本申请实施例提供的内窥镜手柄的可抛弃段及内窥镜进行详细地说明。
参照图1～图5，本申请实施例公开了一种内窥镜手柄的可抛弃段，所公开的内窥镜手柄的可抛弃段包括壳体100、传动组件200、输入组件300和输出组件400。
其中，壳体100为可抛弃段的基础构件，能够为传动组件200、输入组件300和输出组件400提供安装基础。具体地，壳体100设置有容纳空间，传动组件200转动设于壳体100内，输入组件300的至少部分位于壳体100内、并与传动组件200传动配合，输入组件300用于与内窥镜手柄的重复使用段连接，输出组件400的至少部分位于壳体100内、并与传动组件200传动配合，输出组件400用于连接内窥镜主动弯曲段。
具体地，参照图3，传动组件200包括同轴设置的输入齿轮210和传动件，输入齿轮210和传动件同轴联动，在输入齿轮210转动的情况下，传动件跟随输入齿轮210同步转动。
参照图4，输入组件300包括两个第一推杆310，第一推杆310设置有延其轴向延伸的第一齿条，两个第一推杆310通过第一齿条对称啮合于输入齿轮210的两侧，在输入齿轮210转动的情况下，两个第一推杆310同步异向移动。输入组件300作为可抛弃段的动力输入端，用于与重复使用段内的驱动机构传动连接，使用时，可抛弃段与重复使用段相对接，操作内窥镜手柄，重复使用段内的驱动机构可以推动第一推杆310移动，从而带动输入齿轮210转动。
输出组件400包括牵引绳410，牵引绳410连接传动件和内窥镜主动弯曲段，在传动件转动时，牵引绳410对内窥镜主动弯曲段进行牵引动作，从而使内窥镜主动弯曲段沿预设方向弯曲。
本申请实施例公开的内窥镜手柄的可抛弃段，输入组件300通过传动组件200与输出组件400连接，多个可抛弃段的输入组件300可以始终与同一个重复使用段相匹配，而多个可抛弃段的输出组件400可以不同，针对不同的使用场景，可以更换与使用场景相互配的可抛弃段，即更换了带有不同设计参数的传动件和输出组件400的可抛弃段，多个可抛弃段分别与重复使用段连接形成的内窥镜的主动弯曲段能够弯曲的最大弯曲角度不同，能够根据使用场景的不同进行切换；与此同时，每个不同的可抛弃段均能与同一重复使用段相匹配，使重复使用段具有通用性，有效降低了内窥镜的生产成本和使用成本。
在本申请实施例中，参照图3，传动件可以包括输出齿轮220，输出组件400包括两个第二推杆420，第二推杆420设置有沿其轴向延伸的第二齿条，两个第二推杆420对称啮合于传动件的两侧，牵引绳410连接第二推杆420的远端，在输出齿轮220跟随输入齿轮210转动时，两个第二推杆420同步异向移动，使牵引绳410牵引内窥镜主动弯曲段沿预设方向进行弯曲动作。
参照图3所示，第一推杆310的近端设置有抵接部311，抵接部311用于与重复使用段内的驱动机构相抵接，第二推杆420的远端设置有牵引绳连接部421，牵引绳连接部421连接牵引绳410。
在进一步的技术方案中，在可抛弃段的轴向方向上，抵接部311的截面为圆形，抵接部311滑动配合于壳体100，此种情况下，能够提升第一推杆310移动的顺畅性，避免出现卡顿现象。
在本申请实施例中，输入齿轮210的分度圆直径与输出齿轮220的分度圆直径不同，在二者同步转动时，第一推杆310移动的第一行程与第二推杆420的第二行程不同，在输入齿轮210和第一推杆310设计参数不变的情况下，改变输出齿轮220和第二推杆320的设计参数，例如改变输出齿轮220的分度圆直径以及相应改变两个第二推杆420之间的间距，从而能够改变内窥镜主动弯曲段的最大弯曲角度。
一种可选的实施方式中，输入齿轮210的分度圆直径大于输出齿轮220的分度圆直径，也就是说，在传动组件200中，输入齿轮210为大齿轮，输出齿轮220为小齿轮，大齿轮带动小齿轮转动，使得第二推杆420的第二行程小于第一推杆410的第一行程，能够减小内窥镜主动弯曲段的最大弯曲角度，使内窥镜主动弯曲段与相应的使用场景相匹配；与此同时，采用大齿轮带动小齿轮转动，能够使得内窥镜主动弯曲段弯曲的更加细致，使内窥镜主动弯曲段能够准确朝向病灶部位。
在另一种可选的实施方式中，输入齿轮210的分度圆直径小于输出齿轮220的分度圆直径，也就是说，在传动组件200中，输入齿轮210为小齿轮，输出齿轮220为大齿轮，小齿轮带动大齿轮转动，使得第二行程大于第一行程，从而增大了内窥镜主动弯曲段的最大弯曲角度，使内窥镜主动弯曲段的弯曲幅度与其使用场景相匹配。
需要说明的是，在本申请实施例中，针对同一个可抛弃段，其输出齿轮220的设计参数(例如输出齿轮220的分度圆直径)是确定的，本申请实施例中所指出的改变传动件的设计参数，指的是更换的下一个可抛弃段与上一个可抛弃段的输出齿轮220的设计参数不同，多个可抛弃段适配同一个重复使用段，使重复使用段在多种使用场景具有通用性。
在本申请实施例中，输入齿轮210和输出齿轮220同轴连动，一种可选的实施方式中，输入齿轮210和输出齿轮220同轴一体连接形成双联齿轮，结构强度大，降低了人力物力成本；在另一种可选的实施方式中，传动组件200为分体式结构，传动组件200还包括传动轴，输入齿轮210和输出齿轮220分别套接于所述传动轴。需要说明的是，本申请并不限定输入齿轮210和输出齿轮220的具体连接方式，只要能够实现两个分度圆直径不同的齿轮的同步转动即可。
实施例二
参照图6～图9，本实施例与上述实施例一不同的是，传动件可以包括轮盘230，即传动组件200为输入齿轮210与轮盘230同轴连接形成，牵引绳410连接轮盘230。一种可选的实施方式中，牵引绳410可以缠绕轮盘230，轮盘230转动带动牵引绳410牵引内窥镜主动弯曲段；在另一种可选的实施方式中，牵引绳410可以包括第一牵引段和第二牵引段，第一牵引段和第二牵引段分别连接在轮盘230的径向方向的两端，轮盘230转动带动牵引绳410牵引内窥镜主动弯曲段。
在本实施例中，在内窥镜的使用场景发生变化时，例如将尿道膀胱镜改为腹腔镜，需要更换与上一个可抛弃段的轮盘230直径不同的可抛弃段，通过改变轮盘230的直径，能够改变牵引绳410的牵引行程，从而改变内窥镜主动弯曲段的最大弯曲角度，使内窥镜主动弯曲段的最大弯曲角度与使用环境相适配。
同样地，轮盘230与输入齿轮210可以同轴一体连接，也可以传动轴实现同步转动，本实施例并不限定。
实施例三
参照图10～图12，本实施例与上述实施例一不同的是，传动件可以包括曲柄240，输出组件400包括连杆430和牵引绳连接件440，连杆430的一端转动连接于曲柄240的偏心处，连杆430的另一端与牵引绳连接件440转动连接，牵引绳连接件440可移动地设于壳体100，且牵引绳连接件440的移动方向为壳体100的轴向方向；当曲柄240跟随输入齿轮210转动时，通过连杆430带动牵引绳连接件440移动。
在本申请实施例中，所述壳体100内设置有滑轨450，所述滑轨450沿壳体100的轴向延伸设置，所述牵引绳连接件440与所述滑轨450滑动配合，所述滑轨450具有预设的导向轨迹，使得牵引绳连接件440沿滑轨450的延伸方向移动，使得牵引绳连接件440的移动更加稳定，精度更高。
在本申请实施例中，传动组件200可以包括两个曲柄240，输出组件400可以包括两个连杆430和两个牵引绳连接件440，两个曲柄240分布于输入齿轮210轴向方向的两侧，两个连杆430分别连接于两个曲柄240，每个连杆430连接一个牵引绳连接件440；此种情况下，既能实现内窥镜主动弯曲段向两个相反的方向弯曲，又能避免两个连杆430在运动过程中相干涉，提升了内窥镜手柄的可抛弃段的稳定性。
需要说明的是，在本实施例中，两个所述曲柄240关于所述壳体100的轴向对称，以保证两个牵引绳连接件440同步反向运动。
参照图11，所述滑轨450包括连接部和两个导向部，两个导向部连接于所述连接部的两端，使所述滑轨450呈工字型结构，两个牵 引绳连接件440分别与一个导向部滑动配合；如此设置下，两个牵引绳连接件440与一根滑轨450滑动配合，能够减小输出组件400的空间占用。
实施例四
本实施例是在上述实施例一、实施例二或实施例三的基础上的进一步改进，为更好地实现本发明，特别采取下述结构：
参照图5、图9或图12，输入组件300通过传动组件200与输出组件400相连并形成一个传动结构。
一种可选的实施方式中，传动结构可以为一个，在传动结构为一个的情况下，操作重复使用段能够控制内窥镜主动弯曲段在两个方向的弯曲；在另一种可选的实施方式中，传动结构可以为两个，也就是说，传动组件200、输入组件300和输出组件400可以各为两个，此时，操作重复使用段能够控制内窥镜主动弯曲段在四个方向的弯曲。
在本申请实施例中，壳体100设置有对接插头500，对接插头500可与重复使用段对接实现电性连接，从而传输内窥镜前端组件拍摄的影像资料。
在进一步的技术方案中，对接插头500设置于壳体100的近端的中部，两个传动结构分布于对接插头的两侧；如此设置下，既能方便可抛弃段与重复使用段的插接装配；与此同时，两个传动结构之间形成有容置空间，能够容置对接插头500部分和内窥镜插入管的近端部分，实现壳体100径向空间的合理布局，有利于内窥镜手柄向小型化发展。
实施例五
本申请实施例还公开了一种内窥镜，包括重复使用段和多个前述的可抛弃段，重复使用段可以与多个可抛弃段中的任意一个可拆卸连接以形成内窥镜手柄，任意两个可抛弃段分别与重复使用段连接形成 两个内窥镜，因为两个可抛弃段内的传动件和输出组件400的设计参数不同，使得内窥镜主动弯曲段的最大弯曲角度不同，以满足不同的使用场景。在本申请实施例中，可抛弃和重复使用段可以采用螺纹连接件、卡接、磁吸连接等方式可拆卸相连，本申请并不限定可抛弃段和重复使用段的具体连接方式。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
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。

Claims (10)

  1. 一种内窥镜手柄的可抛弃段，其特征在于，包括：
    壳体(100)；
    传动组件(200)，所述传动组件(200)包括同轴联动的输入齿轮(210)和传动件，所述输入齿轮(210)和所述传动件转动设于所述壳体(100)内；
    输入组件(300)，所述输入组件(300)包括两个第一推杆(310)，两个所述第一推杆(310)对称啮合于所述输入齿轮(210)的两侧，使两个所述第一推杆(310)同步异向移动；
    输出组件(400)，所述输出组件(400)包括牵引绳(410)，所述牵引绳(410)连接所述传动件和所述内窥镜主动弯曲段，使所述内窥镜主动弯曲段可随所述输入齿轮(210)的转动而弯曲。
  2. 根据权利要求1所述的内窥镜手柄的可抛弃段，其特征在于，所述传动件包括输出齿轮(220)，所述输出组件(400)包括两个第二推杆(420)，两个所述第二推杆(420)对称啮合于所述输出齿轮(220)的两侧，使两个所述第二推杆(420)同步异向移动，所述牵引绳(410)连接所述第二推杆(420)的远端。
  3. 根据权利要求2所述的内窥镜手柄的可抛弃段，其特征在于，所述第一推杆(310)的近端设置有抵接部(311)，所述第二推杆(420)的远端设置有牵引绳连接部(421)。
  4. 根据权利要求1所述的内窥镜手柄的可抛弃段，其特征在于，所述传动件包括轮盘(230)，所述牵引绳(410)连接所述轮盘(230)。
  5. 根据权利要求1所述的内窥镜手柄的可抛弃段，其特征在于，所述传动件包括曲柄(240)，所述输出组件(400)包括连杆(430)和牵引绳连接件(440)，所述牵引绳连接件(440)可移动地设于所述壳体(100)，所述连杆(430)的一端与所述曲柄(240)转动连 接，所述连杆(430)的另一端与所述牵引绳连接件(440)转动连接。
  6. 根据权利要求5所述的内窥镜手柄的可抛弃段，其特征在于，所述壳体(100)内设置有滑轨(450)，所述滑轨(450)沿所述壳体(100)的轴向延伸设置，所述牵引绳连接件(440)与所述滑轨(450)滑动配合。
  7. 根据权利要求1～6任一所述的内窥镜手柄的可抛弃段，其特征在于，所述输入齿轮(210)与所述传动件一体连接；或者，所述传动组件(200)还包括转动设于所述壳体(100)内的传动轴，所述输入齿轮(210)和所述传动件套接于所述传动轴。
  8. 根据权利要求1～6任一所述的内窥镜手柄的可抛弃段，其特征在于，所述输入组件(300)通过所述传动组件(200)与所述输出组件(400)相连、并形成一个传动结构，所述壳体(100)内设置有一个或两个传动结构。
  9. 根据权利要求8所述的内窥镜手柄的可抛弃段，其特征在于，所述壳体(100)设置有对接插头(500)，在所述传动结构为两个的情况下，两个所述传动结构分布于所述对接插头(500)的两侧。
  10. 一种内窥镜，其特征在于，包括重复使用段与多个权利要求1～9任一所述的可抛弃段，每个所述可抛弃段与所述重复使用段可拆卸连接，任意两个所述可抛弃段分别与重复使用段连接形成的两个内窥镜之间的主动弯曲段的最大弯曲角度不同。
PCT/CN2023/081429 2022-08-02 2023-03-14 一种内窥镜手柄的可抛弃段及内窥镜 WO2024027161A1 (zh)

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