Anti-drift endoscope

Abstract

The utility model relates to medical instrument technical field especially, and more particularly to a kind of anti-deviation endoscope.The utility model provides a kind of anti-deviation endoscope, including a handle and an insertion part;The handle includes a transmission mechanism and a shell;The shell front end is provided installation part, and the shell rear end is holding part;The transmission mechanism includes a drive mechanism and a transmission gear set;The installation part includes a mounting seat and an anti-deviation structure;The insertion part is inserted into the shell on the mounting seat, and the transmission gear set drives the mounting seat and drives the insertion part rotation;The anti-deviation structure limits the transmission gear set position and is attached on the shell.Endoscope internal component stable transmission is realized, product stability is improved, accidental situation in use is avoided, and the yield of product is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an anti-displacement endoscope. Background Technology

[0002] An endoscope is a commonly used medical device that can directly enter the body's natural cavities for examination, providing doctors with comprehensive diagnostic information. During endoscopy, the left and right rotation direction and angle of the insertion section must be controlled to achieve cavity examination and provide sufficient diagnostic information. In use, a gear set is typically used to control the rotation of the insertion section. However, the insertion section is prone to misalignment, increasing the gap between the gears, leading to uneven rotation, gear jamming, or even the drive mechanism seizing up. Because each component has manufacturing tolerances, these tolerances accumulate after assembly, easily resulting in defective products. Even after assembly and passing testing, the gear gaps can still widen due to the combined effects of subsequent transportation and other factors, causing significant problems. These issues become even more pronounced when used in conjunction with other instruments in clinical settings. Therefore, it is urgent to solve the problems of insertion section misalignment and increased gaps between gears leading to uneven rotation, gear jamming, or the drive mechanism seizing up. Utility Model Content

[0003] The purpose of this invention is to provide an anti-deviation endoscope to solve the above problems, achieve stable transmission of the internal components of the endoscope, improve product stability, avoid unexpected situations during use, and improve the product yield.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] This utility model discloses an anti-displacement endoscope comprising a handle and an insertion part; the handle includes a transmission mechanism and a housing; the front end of the housing is provided with a mounting part, and the rear end of the housing is a gripping part; the transmission mechanism includes a drive mechanism and a transmission gear set; the mounting part includes a mounting base and an anti-displacement structure; the insertion part is disposed on the mounting base and inserted into the housing, the transmission gear set drives the mounting base and drives the insertion part to rotate; the anti-displacement structure defines the position of the transmission gear set and is attached to the housing.

[0006] Furthermore, the transmission gear set includes a first transmission gear and a second transmission gear, the drive mechanism includes an output end, the first transmission gear is connected to the output end of the drive mechanism, the second transmission gear is connected to the first transmission gear, the second transmission gear has a hollow structure, and the second transmission gear is engaged with the mounting base.

[0007] Furthermore, the second transmission gear has a hollow structure and includes a first cylindrical section and a second cylindrical section. The first cylindrical section and the second cylindrical section are concentric cylinders. The first cylindrical section cooperates with the anti-offset structure to limit the position of the second transmission gear. The front end of the second cylindrical section is connected to the rear end of the first cylindrical section, and gear teeth are provided on the outer circumferential surface of the second cylindrical section.

[0008] Furthermore, the anti-displacement structure is an arc-shaped concave bayonet.

[0009] Furthermore, the anti-offset structure includes a first arc-shaped bayonet, a second arc-shaped bayonet, and a third arc-shaped bayonet.

[0010] Furthermore, it also includes a drive mechanism cover, which is attached to the housing.

[0011] Furthermore, the drive mechanism cover and the anti-offset structure are integrally formed.

[0012] Furthermore, the drive mechanism cover and the anti-offset structure are separate structures.

[0013] Furthermore, the second transmission gear is integrally formed with the mounting base.

[0014] Furthermore, the anti-displacement structure is attached to the housing by screws, glue, or clips.

[0015] The technical solution adopted by this utility model can achieve the following beneficial effects: The anti-displacement endoscope provided in this application, by attaching the anti-displacement structure to the outer shell, allows the transmission gear set to rotate within a restricted space and restricts its displacement, thereby achieving stable transmission of the internal components of the endoscope, improving product stability, avoiding unexpected situations during use, and improving the product yield. Attached Figure Description

[0016] Figure 1 A three-dimensional view of an endoscope according to one embodiment;

[0017] Figure 2 A perspective view of the side of an endoscope according to one embodiment;

[0018] Figure 3 for Figure 2 Cross-sectional view along F-F';

[0019] Figure 4 This is a schematic diagram of the interior of the front of an endoscope according to one embodiment;

[0020] Figure 5 This is a schematic diagram of the interior of the back of an endoscope according to one embodiment;

[0021] Figure 6 An exploded view of an endoscope according to one embodiment;

[0022] Figure 7 This is a schematic diagram of the drive mechanism cover and anti-displacement structure of an endoscope according to one embodiment;

[0023] Figure 8 An exploded view of an endoscope according to another embodiment;

[0024] Figure 9 A schematic diagram of the drive mechanism cover and anti-displacement structure of an endoscope according to another embodiment;

[0025] Figure 10 This is a schematic diagram of the second transmission gear of an endoscope according to one embodiment.

[0026] In the diagram: 100, handle; 200, insertion part; 300, transmission mechanism; 310, drive mechanism; 311, drive mechanism cover; 320, transmission gear set; 321, first transmission gear; 322, second transmission gear; 323, first cylindrical section; 324, second cylindrical section; 400, outer shell; 410, mounting part; 411, mounting base; 412, anti-offset structure; 420, grip. Detailed Implementation

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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, the above terms should not be construed as limitations on this utility model.

[0029] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0030] In addition, in this application, "proximal end" and "distal end" refer to the near and far positions of the structure relative to human operation in the usage environment, so as to facilitate the description of the positional relationship between the components and to facilitate understanding; for the same component, "proximal end" and "distal end" are the relative positional relationship of the component, not absolute; therefore, they should be understood from the perspective of implementing the principle of this application, and should not deviate from the essence of this application.

[0031] Reference Appendix Figures 1 to 7 As shown, a preferred embodiment of the present invention is illustrated using an anti-displacement endoscope.

[0032] The endoscope includes a handle 100 and an insertion part 200. The handle 100 includes a transmission mechanism 300 and a housing 400; the front end of the housing 400 is provided with a mounting part 410, and the rear end of the housing 400 is a gripping part 420; the transmission mechanism 300 is provided inside the housing 400 for directional control, and the transmission mechanism 300 includes a drive mechanism 310 and a transmission gear set 320.

[0033] The mounting portion 410 includes a mounting base 411 and an anti-offset structure 412; the insertion portion 200 is disposed on the mounting base 411 and inserted into the housing 400; a transmission gear of the transmission gear set 320 is engaged on the mounting base 411; the transmission gear set 320 can drive the mounting base 411 and drive the insertion portion 200 to rotate; the anti-offset structure 412 is attached to the housing 400, the anti-offset structure 412 defines the position of the transmission gear set 320 and is attached to the housing 400, it can allow the transmission gear set 320 to rotate within the restricted space and restrict its offset.

[0034] The anti-offset structure 412 has a latch that limits the position of the transmission gear set 320, ensuring that the transmission gear set 320 can rotate without deviating from its central axis.

[0035] The transmission gear set 320 includes a first transmission gear 321 and a second transmission gear 322. The drive mechanism 310 can be a drive motor, which includes an output end. The first transmission gear 321 is connected to the output end of the drive mechanism 310. The second transmission gear 322 is connected to the first transmission gear 321 in a transmission connection. The second transmission gear 322 is nested and connected to the mounting base 411. The retainer restricts the second transmission gear 322 between the first transmission gear 321 and the retainer to prevent the gap between the second transmission gear 322 and the first transmission gear 321 from increasing, thus ensuring stable transmission between the first transmission gear 321 and the second transmission gear 322.

[0036] The second transmission gear 322 is nested and connected to the mounting base 411. The second transmission gear 322 has a hollow structure, such as... Figure 10 As shown, the second transmission gear 322 includes a first cylindrical section 323 and a second cylindrical section 324. The first cylindrical section 323 and the second cylindrical section 324 are concentric cylinders with different diameters. The first cylindrical section 323 cooperates with the anti-offset structure 412 to limit the position of the second transmission gear 322. The front end of the second cylindrical section 324 is connected to the rear end of the first cylindrical section 323. Several gear teeth are provided on the outer circumferential surface of the second cylindrical section 324.

[0037] The bayonet can be an arc-shaped bayonet, and the inner surface of the main body of the arc-shaped bayonet can be a partially cylindrical surface. The bayonet engages with the mounting base 411, allowing the mounting base 411 to rotate and restricting the offset of the central axis of the mounting base 411. The arc-shaped bayonet also includes two wings on both sides for setting screw holes or adhesive parts to fix it to the housing 400. The bayonet can also include multiple arc-shaped bayonet segments with partially cylindrical inner surfaces of different radii.

[0038] Specifically, such as Figure 7 and 9 As shown, the arc-shaped latch may include a first arc-shaped latch, a second arc-shaped latch, and a third arc-shaped latch. The first arc-shaped latch is engaged with the first cylindrical section 323 of the second transmission gear 322. The third arc-shaped latch is engaged with the mounting base 411, allowing the mounting base 411 to rotate and restricting the offset of the central axis of the mounting base 411. The second arc-shaped latch forms a space that can accommodate the second transmission gear 322 to rotate within it and restrict its offset.

[0039] A drive mechanism seat is disposed within the housing 400 of the handle 100. The drive mechanism seat is used to fix the drive mechanism 310. The drive mechanism 310 may also be provided with a drive mechanism cover 311, which is attached to the housing 400 and used to fix the drive mechanism 310. The anti-offset structure 412 and the drive mechanism cover 311 can be separately disposed, as in other embodiments, such as... Figure 8 and 9 As shown, the anti-displacement structure 412 and the drive mechanism cover 311 can also be integrally formed. A hole is provided at the connection between the anti-displacement structure 412 and the drive mechanism cover 311 to allow the instrument to enter the insertion part 200.

[0040] The second transmission gear 322 is a hollow structure with an inner surface that engages with the outer surface of one end of the mounting base 411. Due to structural requirements, the hollow interior of the second transmission gear 322 needs to be designed as a non-circular structure to effectively drive the mounting base 411. Figure 3 As shown, the corresponding position of the mounting base 411 where the second transmission gear 322 is assembled also needs to be designed as non-circular. When rotating, when a gap is generated between the mounting base 411 and the anti-offset structure 412 due to the non-circular design, the insertion part 200 will warp and twist. The part where the mounting base 411 and the anti-offset structure 412 engage is a circular structure.

[0041] In other embodiments, the second transmission gear 322 may also be integrally formed with the mounting base 411.

[0042] Suitable but not limiting materials, such as metallic materials, polymeric materials, or combinations thereof, may be used for components or elements of the anti-offset structure 412, the drive mechanism cover 311, etc.

[0043] The second transmission gear 322 is connected to the first transmission gear 321, and the second transmission gear 322 and the first transmission gear 321 can mesh with each other.

[0044] The anti-offset structure 412 can be attached to the housing 400 by screws, glue, or clips.

[0045] The mounting base 411 has a hollow structure, and the second transmission gear 322 forms a through hole with the mounting base 411. This allows the operating instruments to pass through the through hole formed by the second transmission gear 322 and the mounting base 411 when using the endoscope, without interference from the rotation of the second transmission gear 322 and the mounting base 411 along the central axis during operation, making operation more convenient.

[0046] The proximal end of the insertion part 200 is disposed within the handle 100 and fixedly connected to the mounting base 411. The distal end of the insertion part 200 extends outward through the insertion port. The central axis of the insertion part 200 coincides with the central axis of the second transmission gear 322. This allows the user to operate the instrument through the through hole formed by the second transmission gear 322, the mounting base 411, and the insertion part 200 when using the endoscope. During operation, there is no interference from the rotation of the second transmission gear 322 and the mounting base 411 along their central axes, making operation more convenient.

[0047] The drive mechanism 310 can drive the insertion part 200 to rotate along the central axis.

[0048] The endoscope may include buttons or other control software. The buttons may include left and right buttons. The buttons are electrically connected to control the drive mechanism 310 to facilitate control of the rotation direction and rotation angle.

[0049] The mounting base 411 is provided with a limiting rib, and the inner wall of the outer shell 400 is provided with a limit detection switch. When it is rotated to a certain angle, the limiting rib will fluctuate the limit detection switch. After the switch reaches the working stroke, it stops rotating in the original direction and can only rotate in the opposite direction to prevent the front end pipeline from rotating excessively.

[0050] The endoscope can be connected to a display device. An imaging module is provided at the distal end of the insertion part 200.

[0051] The structure of the insertion part 200 and the display device can be the same as that of the prior art, and will not be described in detail here. The length of the insertion part 200 is not limited to the length shown in the figure.

[0052] The endoscope in this embodiment can be a disposable endoscope, a reusable endoscope for a limited number of uses, or a reusable endoscope for an unlimited number of uses. The endoscope in this embodiment can be a bronchoscope, pyeloscope, esophagoscope, gastroscope, colonoscope, otoscope, rhinoscope, oral endoscope, laryngoscope, colposcope, laparoscope, arthroscope, etc. This embodiment does not specifically limit the type of endoscope.

[0053] It will be understood by those skilled in the art that the above embodiments are merely examples, and features of different embodiments can be combined with each other to obtain implementation methods that are readily conceived of according to the content disclosed in this utility model but are not explicitly shown in the accompanying drawings.

[0054] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A deflection-preventing endoscope, characterized by, The handle comprises a transmission mechanism and a shell, the shell has a mounting portion at the front end and a holding portion at the rear end, the transmission mechanism comprises a driving mechanism and a transmission gear set, the mounting portion comprises a mounting seat and an anti-deviation structure, the insertion portion is arranged on the mounting seat and inserted into the shell, the transmission gear set drives the mounting seat and the insertion portion, and the anti-deviation structure is attached to the shell and limits the position of the transmission gear set.

2. The endoscope of claim 1, wherein, The transmission gear set comprises a first transmission gear and a second transmission gear, the driving mechanism comprises an output end, the first transmission gear is connected to the output end of the driving mechanism, the second transmission gear is in transmission connection with the first transmission gear, and the second transmission gear is in a hollow structure and is in clamping connection with the mounting seat.

3. The endoscope of claim 2, wherein, The second transmission gear is in a hollow structure and comprises a first cylindrical segment and a second cylindrical segment, the first cylindrical segment and the second cylindrical segment are concentric cylinders, the first cylindrical segment cooperates with the anti-deviation structure to limit the position of the second transmission gear, the second cylindrical segment is connected to the rear end of the first cylindrical segment, and the outer circumferential surface of the second cylindrical segment is provided with a gear.

4. The endoscope of claim 1, wherein, The anti-deviation structure is an arc-shaped socket.

5. The endoscope of claim 1, wherein, The anti-deviation structure comprises a first arc-shaped socket, a second arc-shaped socket and a third arc-shaped socket.

6. The endoscope of claim 1, wherein, A driving mechanism cover is further arranged, and the driving mechanism cover is attached to the shell.

7. The endoscope of claim 6, wherein, The driving mechanism cover and the anti-deviation structure are integrally formed.

8. The endoscope of claim 6, wherein, The driving mechanism cover and the anti-deviation structure are in a split structure.

9. The endoscope of claim 2, wherein, The second transmission gear is integrally formed with the mounting seat.

10. The endoscope of claim 1, wherein, The anti-deviation structure is attached to the shell by means of screws, glue or buckles.

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