Intubating device and endoscope

Abstract

The application provides a cannula device and an endoscope, and relates to the technical field of medical devices. The cannula device comprises a cannula body, an end seat and an operation module. The cannula body is internally provided with a storage channel penetrating through the cannula body along the axial direction. The end seat is arranged at the proximal end of the cannula body corresponding to the storage channel, and the end seat is provided with a relief gap. The operation module comprises an operation rod and a module assembly. The first end of the operation rod is movably inserted into the proximal end of the storage channel and extends to the distal end of the storage channel. The second end of the operation rod is connected to the module assembly. The center line of the operation rod is eccentrically arranged with the center line of the module assembly. The module assembly is moved so that part of the module assembly is located in the relief gap, thereby reducing the shielding area of the module assembly to the proximal end of the storage channel. The cannula device reduces the outer diameter of the cannula body while not affecting the use effect.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an intubation device and an endoscope. Background Technology

[0002] With the development of CMOS (Complementary Metal Oxide Semiconductor) image sensors, electronic endoscopes that integrate the entire camera module into the tip of the cannula are becoming increasingly common. For many endoscopic applications, such as cystoscopy and hysteroscopy, the cannula needs to be inserted into relatively narrow cavities like the urethra or cervix. Therefore, the maximum outer diameter of the cannula needs to be as small as possible to reduce insertion resistance and alleviate patient discomfort. However, in practical applications, for ease of operation, the inner diameter of the instrument channel needs to be as large as possible, making it difficult to simultaneously meet the requirements of both the cannula's outer diameter and the instrument channel's inner diameter. Summary of the Invention

[0003] The purpose of this invention is to provide an intubation device and an endoscope, which reduces the outer diameter of the intubation body without affecting the effectiveness of use.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] Intubation device, including:

[0006] The cannula body has an internal placement channel that extends through it along its axial direction.

[0007] An end seat is provided at the proximal end of the cannula body, corresponding to the placement channel, and the end seat is provided with an avoidance notch;

[0008] The operating module includes an operating lever and a module assembly. The first end of the operating lever is movably inserted into the proximal end of the storage channel and extends to the distal end of the storage channel. The second end of the operating lever is connected to the module assembly, and the centerline of the operating lever is eccentrically set with the centerline of the module assembly. Moving the module assembly allows a portion of the module assembly to be located within the clearance notch, thereby reducing the area of ​​the module assembly that obstructs the proximal end of the storage channel.

[0009] As a further technical solution, the storage channel is provided with an insertion channel and a first working channel. The proximal end of the insertion channel is correspondingly provided with the clearance notch. The first end of the operating rod can be movably inserted into the insertion channel. The first working channel is used to insert operating tools.

[0010] As a further technical solution, the operation module also includes an auxiliary component, which is disposed at the proximal end of the cannula body corresponding to the clearance notch;

[0011] The auxiliary component is provided with a guide surface. From the proximal end of the cannula body to the distal end of the cannula body, the guide surface is inclined toward the clearance notch. The operating lever is connected to the auxiliary component and can move along the guide surface so that part of the module component is located within the clearance notch.

[0012] As a further technical solution, the auxiliary component is configured as a plastic component, including a connecting part, an inclined part, and a supporting part. The inclined part is movably disposed between the connecting part and the supporting part. The connecting part is disposed at the proximal end of the insertion tube body. The inclined part is configured as the guide surface. When the operating rod is movably inserted into the placement channel, the module assembly is located on the supporting part.

[0013] As a further technical solution, a guide limiting groove is provided in the middle of the inclined part, the guide limiting groove extends along the direction from the support part to the connecting part, and the operating rod can be limited and connected to the guide limiting groove.

[0014] As a further technical solution, a second working channel is provided in the storage channel. The second working channel is used to insert operating tools. The auxiliary component is connected to the inner wall of the storage channel. The first end of the operating rod can be movably inserted between the outer wall of the second working channel and the inner wall of the storage channel.

[0015] As a further technical solution, the module assembly includes an operating component and an illumination component, the illumination component being disposed on the operating component, and the operating lever being eccentrically connected to the operating component.

[0016] As a further technical solution, the inner wall of the end seat is provided with a limiting part, and the proximal end of the cannula body is limited and connected to the limiting part.

[0017] As a further technical solution, along the axial direction of the cannula body, the cross-sectional area of ​​the module assembly is smaller than the cross-sectional area of ​​the end seat.

[0018] An endoscope includes an operating device and an insertion device, wherein the insertion device is movably disposed on the operating device.

[0019] Compared with the prior art, the intubation device and endoscope provided by the present invention have the following technical advantages:

[0020] Because the operating lever is connected to the module assembly and is offset from the module assembly, after the operating lever is inserted into the placement channel, moving the module assembly so that part of the module assembly is within the clearance notch reduces the area of ​​the module assembly obstructing the proximal end of the placement channel, exposing the proximal outlet of the placement channel. At this point, the entire cannulation device is in its first state, and the operating tool can then be inserted into the placement channel from the exposed outlet for subsequent operations. Moving the module assembly so that the entire module assembly is within the end seat obstructs the proximal outlet of the placement channel, placing the entire cannulation device in its second state, facilitating the storage of the cannulation device. This cannulation device, due to the clearance notch and the offset arrangement of the operating lever and module assembly, allows switching between the first and second states by moving the module assembly. Throughout this process, the module assembly does not occupy the internal space of the placement channel, thus minimizing the outer diameter of the cannulation body without affecting the usability of the operating tool, to meet clinical needs. Meanwhile, because of the movable module components, some module components can be located within the clearance notch, thus allowing for the assembly of larger module components while using the same outer diameter cannula body, thereby further improving the practical performance of the cannula device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first state of the cannulation device provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the end seat structure in the cannulation device provided in an embodiment of the present invention;

[0023] Figure 3 This is a right view of the intubation device provided in an embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of the first state of the cannulation device provided in the embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the second state of the cannulation device provided in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the first state of another embodiment of the cannulation device provided in this invention;

[0027] Figure 7 This is a schematic diagram of the auxiliary components in the cannulation device provided in the embodiment of the present invention;

[0028] Figure 8 This is a cross-sectional view of the first state in another embodiment of the cannulation device provided in this invention;

[0029] Figure 9This is a cross-sectional view of the second state in another embodiment of the cannulation device provided in this invention.

[0030] In the picture:

[0031] 100. Intubation body; 111. Intubation channel; 112. First working channel; 113. Second working channel;

[0032] 200, end seat; 210, clearance notch; 220, limiting part;

[0033] 300, Operation module; 310, Operation lever; 320, Module assembly; 321, Operation component; 322, Lighting component; 330, Auxiliary component; 331, Connecting part; 332, Inclining part; 3321, Guide limiting groove; 333, Support part. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0038] Combination Figures 1 to 9 As shown, the intubation device provided in this embodiment reduces the outer diameter of the intubation body 100 without affecting the usage effect. Specifically, the intubation device includes an intubation body 100, an end seat 200, and an operation module 300: the intubation body 100 has a placement channel that extends through the intubation body 100 along its axial direction; the end seat 200 is located at the proximal end of the intubation body 100 corresponding to the placement channel, and the end seat 200 has an avoidance notch 210; the operation module 300 includes an operation rod 310 and a module assembly 320. The first end of the operation rod 310 can be movably inserted into the proximal end of the placement channel and extends to the distal end of the placement channel. The second end of the operation rod 310 is connected to the module assembly 320, and the centerline of the operation rod 310 is eccentrically set with the centerline of the module assembly 320. By rotating the module assembly 320, a portion of the module assembly 320 is located within the avoidance notch 210, thereby reducing the area of ​​the module assembly 320 that obstructs the proximal end of the placement channel.

[0039] Since the operating lever 310 is connected to the module assembly 320, and the operating lever 310 and the module assembly 320 are eccentrically positioned, after the operating lever 310 is inserted into the storage channel, moving the module assembly 320 so that part of the module assembly 320 is located within the clearance notch 210 reduces the area of ​​the module assembly 320 obstructing the near end of the storage channel, exposing the near end outlet of the storage channel. At this time, the entire insertion device is in the first state, and the operating tool can then be inserted into the storage channel from the exposed outlet for subsequent operations. Moving the module assembly 320 so that the entire module assembly 320 is located within the end seat 200, the module assembly 320 obstructs the near end outlet of the storage channel, and the entire insertion device is in the second state, facilitating the storage of the insertion device. This intubation device, with its clearance notch 210 and eccentrically positioned operating lever 310 and module assembly 320, allows switching between a first and second state by moving the module assembly 320. Throughout this process, the module assembly 320 does not occupy the internal space of the placement channel, thus minimizing the outer diameter of the intubation body 100 without affecting the usability of the operating tool, to meet clinical needs. Furthermore, by moving the module assembly 320, a portion of it can be positioned within the clearance notch 210, allowing for the installation of a larger module assembly 320 while maintaining the same outer diameter intubation body 100, further enhancing the device's practicality.

[0040] Furthermore, the placement channel is provided with an intubation channel 111 and a first working channel 112. The proximal end of the intubation channel 111 corresponds to the avoidance notch 210. The first end of the operating rod 310 can be movably inserted into the intubation channel 111. The first working channel 112 is used to insert the operating tool. The intubation channel 111 and the first working channel 112 are set relatively independently. The operating rod 310 is movably inserted into the intubation channel 111, and the operating tool is set in the first working channel 112. During operation, interference between the operating tool and the operating rod 310 is avoided. At the same time, since the module component 320 does not occupy the internal space of the intubation channel 111, the outer diameter of the intubation body 100 can be reduced as much as possible without affecting the inner diameter of the first working channel 112, so as to meet the clinical need for the inner diameter of the first working channel 112 to be as large as possible and the outer diameter of the intubation body 100 to be as small as possible.

[0041] In other embodiments, the clearance notch 210 can be oriented in any direction. In this embodiment, for ease of description, the clearance notch 210 is uniformly oriented upwards, and the insertion channel 111 is positioned above the first working channel 112. Figure 4As shown, after the module assembly 320 rotates 180°, part of the module assembly 320 is located within the clearance notch 210, and the module assembly 320 no longer obstructs the first working channel 112. At this time, the proximal outlet of the first working channel 112 is exposed, so that the operating tool can be inserted into the first working channel 112 for subsequent operations. Figure 5 As shown, in the second state, the operating lever 310 is located in the cannulation channel 111, and the module assembly 320 blocks the proximal exit of the first working channel 112.

[0042] In another embodiment, the operating module 300 further includes an auxiliary component 330, which is disposed at the proximal end of the cannula body 100 corresponding to the clearance notch 210. The auxiliary component 330 is provided with a guide surface, which is inclined towards the clearance notch 210 in the direction from the proximal end of the cannula body 100 to the distal end of the cannula body 100. The operating lever 310 is connected to the auxiliary component 330 and can move along the guide surface so that a portion of the module component 320 is located within the clearance notch 210.

[0043] The module assembly 320 and the operating lever 310 can be arranged concentrically or eccentrically. Specifically, when the module assembly 320 and the operating lever 310 are concentrically arranged and the insertion device needs to be switched to the first state, the module assembly 320 is moved so that both the module assembly 320 and the operating lever 310 move along the guide surface towards the clearance notch 210, thereby placing part of the module assembly 320 within the clearance notch 210 and exposing the proximal outlet portion of the storage channel. When the module assembly 320 and the operating lever 310 are eccentrically arranged and the insertion device needs to be switched to the first state, the module assembly 320 is rotated 180° and simultaneously moved so that both the module assembly 320 and the operating lever 310 move along the guide surface towards the clearance notch 210, thereby placing part of the module assembly 320 within the clearance notch 210 and exposing the proximal outlet portion of the storage channel.

[0044] Furthermore, a second working channel 113 is provided in the storage channel. The second working channel 113 is used to insert the operating tool. The auxiliary component 330 is connected to the inner wall of the storage channel. The first end of the operating rod 310 can be movably inserted between the outer wall of the second working channel 113 and the inner wall of the storage channel. During the operation, the operating tool and the operating rod 310 can be prevented from interfering with each other. Since both the module assembly 320 and the operating lever 310 move along the guide surface, and the auxiliary component 330 with the guide surface is correspondingly provided with the clearance notch 210, the smoothness of movement of the module assembly 320 and the operating lever 310 can be ensured during the process of moving the module assembly 320 to switch the state of the intubation device. As a result, it is not necessary to specifically set up a channel to limit the relative position of the operating lever 310, that is, some structures in the placement channel can be reduced. Therefore, the entire intubation device, without affecting the inner diameter of the second working channel 113 and ensuring the effectiveness of the operating module 300, minimizes the outer diameter of the intubation body 100 to meet the clinical need for the second working channel 113 to be as large as possible and the outer diameter of the intubation body 100 to be as small as possible.

[0045] Preferably, the auxiliary component 330 is a plastic part, including a connecting portion 331, an inclined portion 332, and a supporting portion 333. The inclined portion 332 is movably disposed between the connecting portion 331 and the supporting portion 333. The connecting portion 331 is disposed at the proximal end of the cannula body 100, and the inclined portion 332 is configured as a guide surface. When the operating lever 310 is movably inserted into the placement channel, the module assembly 320 is located at the supporting portion 333. When it is necessary to switch from the second state to the first state, the auxiliary component 330 is pulled away from the proximal end of the cannula body 100. At this time, the auxiliary component 330 extends under the pulling force, such as... Figure 8 As shown, at this time, the distance between the support 333 and the clearance notch 210 decreases, and part of the module component 320 is located within the clearance notch 210. The proximal outlet of the second working channel 113 is exposed to facilitate the insertion of the operating tool into the second working channel 113 for subsequent operations. When the auxiliary component 330 is pushed towards the proximal end of the cannula body 100, the auxiliary component 330 is folded, as shown. Figure 9 As shown, at this time, the distance between the support 333 and the clearance notch 210 increases, and the module assembly 320 moves away from the clearance notch 210 along with the support 333. The module assembly 320 blocks the proximal outlet of the second working channel 113, and the entire cannulation device switches to the second state. In addition, since the auxiliary part 330 is made of plastic, the convenience of stretching or folding the auxiliary part 330 can be improved, while ensuring that the auxiliary part 330 remains in its current state without the application of external force after being stretched or folded, thereby ensuring the stability of the cannulation device in its current state.

[0046] Furthermore, a guide limiting groove 3321 is provided in the middle of the inclined portion 332. The guide limiting groove 3321 extends along the direction from the support portion 333 to the connecting portion 331, and the operating lever 310 can be limited and connected to the guide limiting groove 3321. The operating lever 310 is always inserted in the guide limiting groove 3321. During the process of the auxiliary component 330 being stretched or folded, it ensures that the operating lever 310 and the module assembly 320 always move with the movement of the auxiliary component 330, thereby ensuring consistency when the position changes. After the auxiliary component 330 is stretched or folded, the guide limiting groove 3321 restricts the relative position of the operating lever 310 and the module assembly 320 to further improve the stability of the insertion device in its current state. Figure 7 As shown, in this embodiment, the guide limiting groove 3321 passes through the connecting part 331 along the direction from the support part 333 to the connecting part 331; in this way, the groove area of ​​the guide limiting groove 3321 can be increased, thereby improving the convenience of the operating rod 310 when it passes through the guide limiting groove 3321 and is inserted between the outer wall of the second working channel 113 and the inner wall of the storage channel.

[0047] In the optional technical solution of this embodiment, the module component 320 includes an operating element 321 and an illumination element 322. The illumination element 322 is disposed on the operating element 321, and the operating lever 310 is eccentrically connected to the operating element 321.

[0048] Specifically, when the proximal outlet of the placement channel is not equipped with the auxiliary component 330, the operating lever 310 is eccentrically connected to the operating component 321; when the proximal outlet of the placement channel is equipped with the auxiliary component 330, the operating lever 310 can be eccentrically connected to the operating component 321 or concentrically set with the operating component 321. The lighting component 322 provides illumination for the operating component 321 to improve the convenience of operating the operating lever 310 through the operating component 321; the operating lever 310 is made of a braided tube with good torsional resistance and bending performance to ensure the clinical effectiveness of the operating lever 310. In addition, in order to ensure the overall flexibility and strength of the intubation device, in this embodiment, the intubation body 100 adopts a snake-bone tube.

[0049] Preferably, a limiting portion 220 is provided on the inner wall of the end cap 200, and the proximal end of the cannula body 100 is limited and connected to the limiting portion 220. For example... Figure 2 As shown, in this embodiment, the limiting part 220 is configured as a limiting step protruding from the inner wall of the end seat, and the limiting step extends circumferentially along the end seat 200; after the end seat 200 is connected to the proximal end of the cannula body 100, the proximal end of the cannula body 100 abuts against the limiting step, so as to further improve the connection stability and connection accuracy between the end seat 200 and the cannula body 100.

[0050] Preferably, along the axial direction of the cannula body 100, the cross-sectional area of ​​the module assembly 320 is smaller than the cross-sectional area of ​​the end seat 200. This allows part of the module assembly 320 to be placed within the clearance notch 210 in the first state of the cannula device; and allows the entire module assembly 320 to be located within the end seat 200 in the second state of the cannula device, thereby reducing the storage volume of the cannula device.

[0051] An endoscope includes an operating device and an insertion device, the insertion device being movably mounted on the operating device.

[0052] The operating device is provided with an installation channel, in which the cannulation device is movably mounted. The end cap 200 and the module assembly 320 are exposed at the proximal end of the installation channel, while the distal end of the cannulation body 100 extends beyond the distal end of the installation channel. By employing the module assembly 320, the cannulation device, which does not occupy the placement channel, allows the endoscope to meet the clinical requirement of maximizing the inner diameter of the working channel and minimizing the outer diameter of the cannulation body 100.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. Cannulation device, characterized in that The utility model relates to a kind of insertion tube and its operation module, including: The insertion tube body (100) is internally provided with the article channel along the axial through the insertion tube body (100); End seat (200) is arranged at the proximal end of the insertion tube body (100) corresponding to the article channel, and the end seat (200) is provided with a relief notch (210); Operation module (300) includes operating rod (310), module assembly (320) and auxiliary part (330), the first end of the operating rod (310) can be movably inserted into the proximal end of the article channel, and extend to the distal end of the article channel, the second end of the operating rod (310) is connected to the module assembly (320), and the center line of the operating rod (310) is eccentrically arranged with the center line of the module assembly (320), part of the module assembly (320) is located in the relief notch (210) by moving the module assembly (320), to reduce the shielding area of the module assembly (320) to the proximal end of the article channel; The auxiliary part (330) is arranged at the proximal end of the insertion tube body (100) corresponding to the relief notch (210); The auxiliary part (330) is provided with a guide surface, from the proximal end of the insertion tube body (100) to the distal end of the insertion tube body (100), the guide surface is inclined to the direction close to the relief notch (210), the operating rod (310) is connected to the auxiliary part (330) and can move along the guide surface, so that part of the module assembly (320) is located in the relief notch (210); The auxiliary part (330) is arranged as a plastic part, including connecting part (331), inclined part (332) and support part (333), the inclined part (332) is movably arranged between the connecting part (331) and the support part (333), the connecting part (331) is arranged at the proximal end of the insertion tube body (100), and the inclined part (332) is arranged as the guide surface, when the operating rod (310) is movably inserted into the article channel, the module assembly (320) is located in the support part (333); The middle part of the inclined part (332) is provided with a guide limiting groove (3321), which extends from the support part (333) to the connecting part (331), and the operating rod (310) can be limitedly connected to the guide limiting groove (3321).

2. The intubation device of claim 1, wherein, The article channel is provided with an insertion tube channel (111) and a first working channel (112), the proximal end of the insertion tube channel (111) is arranged corresponding to the relief notch (210), the first end of the operating rod (310) can be movably inserted into the insertion tube channel (111), and the first working channel (112) is used for inserting operating tools.

3. The intubation device of claim 1, wherein, A second working channel (113) is arranged in the storage channel, and is used for inserting an operating tool. The auxiliary member (330) is connected to the inner wall of the storage channel. The first end of the operating rod (310) is movably inserted between the outer wall of the second working channel (113) and the inner wall of the storage channel.

4. Cannulation device according to any one of claims 1-3, characterized in that The module assembly (320) comprises an operating member (321) and an illuminating member (322). The illuminating member (322) is arranged on the operating member (321). The operating rod (310) is eccentrically connected to the operating member (321).

5. Cannulation device according to any one of claims 1-3, characterized in that The inner wall of the end seat (200) is provided with a limiting portion (220). The proximal end of the cannula body (100) is limitedly connected to the limiting portion (220).

6. The intubation device of any one of claims 1-3, wherein, Along the axial direction of the cannula body (100), the cross-sectional area of the module assembly (320) is smaller than the cross-sectional area of the end seat (200).

7. An endoscope characterized by The application also discloses an operating device comprising the operating device and the cannula device according to any one of claims 1-6. The cannula device is movably arranged in the operating device.

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