A device for measuring the viewing angle of an electronic endoscope

Abstract

This utility model discloses a device for measuring the viewing angle of an electronic endoscope, relating to the field of viewing angle measurement technology. It includes a base on which an endoscope mechanism and a corresponding target mechanism are mounted. The endoscope mechanism achieves movement and angle adjustment of the endoscope body through a first stabilizing base, a first toothed guide rail, a movable guide rail assembly, a rotating assembly, and an endoscope fixing base. The target mechanism achieves multi-directional translation and rotation of the target body through a second stabilizing base, a second toothed guide rail, a guide rail assembly, a third stabilizing base, a third toothed guide rail, another guide rail assembly, and a rotating assembly. This device for measuring the viewing angle of an electronic endoscope simplifies the operation process, reduces equipment complexity and cost, and achieves efficient and accurate measurement of the viewing angle of an electronic endoscope through the synergistic effect of multi-degree-of-freedom translation and angle adjustment mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of viewing angle measurement technology, specifically a device for measuring the viewing angle of an electronic endoscope. Background Technology

[0002] As an indispensable core device in the field of modern minimally invasive medicine, the electronic endoscope, with its advantages of being minimally invasive, intuitive, and precise, has become a crucial tool in surgical procedures, diagnostic examinations, and treatments. One of its core functions is to transmit in-body images to an external display screen in real time via a lens, providing doctors with a clear field of vision. In this process, the accuracy of the viewing angle (i.e., the angle between the optical axis of the lens and the axis of the endoscope) directly determines the coverage and direction of the image, thus affecting the precision of the surgical procedure. If there is a deviation in the viewing angle, it may lead to field of vision shift, tissue mispositioning, or even surgical risks.

[0003] The traditional method for measuring the angle of view involves fixing the endoscope lens under test at the center of a rotating device, driving a target to move in a circular motion around the center point of the lens, and using optical sensors or image processing technology to capture the positional changes of the target in the field of view of the lens, thereby calculating the actual angle of view.

[0004] However, in practical applications, firstly, the rotating mechanism requires the integration of high-precision guide rails, bearings, and a drive system, resulting in a complex and bulky overall structure that not only occupies a large amount of experimental space but also increases the difficulty of equipment maintenance; secondly, during the measurement process, it is essential to ensure that the center of the lens and the center of the rotating mechanism are perfectly aligned, otherwise systematic deviations will be introduced. In actual clamping operations, manual adjustment is difficult to achieve such high precision, often requiring the use of auxiliary equipment such as laser alignment instruments, which further increases time costs and operational barriers; finally, traditional equipment is expensive and has low measurement efficiency, making it difficult to meet the needs of production lines for rapid calibration of batch equipment, thus limiting its widespread application in industrial scenarios.

[0005] Therefore, in order to address the above problems, the applicant needs to design a device for measuring the viewing angle of an electronic endoscope. Utility Model Content

[0006] The purpose of this invention is to provide a device for measuring the viewing angle of an electronic endoscope, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A device for measuring the viewing angle of an electronic endoscope, comprising a base, and an endoscope mechanism and a corresponding target mechanism are arranged above the base. The endoscope mechanism includes a first stabilizing seat fixedly connected to the base, and a toothed guide rail is fixedly arranged on the first stabilizing seat. A movable guide rail assembly is arranged on the first toothed guide rail, and a rotating assembly is arranged on the guide rail assembly. An endoscope fixing seat is arranged on the rotating assembly, and an endoscope body is arranged on the endoscope fixing seat. The target mechanism includes a second stabilizing seat fixedly connected to the base, and a second toothed guide rail is fixedly arranged on the second stabilizing seat. A guide rail assembly is arranged on the second toothed guide rail, and a connecting plate is arranged on the guide rail assembly. A third stabilizing seat is fixedly arranged on the connecting plate, and a third toothed guide rail is arranged on the third stabilizing seat. A guide rail assembly is arranged on the third toothed guide rail, and a rotating assembly is arranged on the guide rail assembly. A target body is fixedly arranged on the rotating assembly.

[0008] Furthermore, the guide rail assembly includes a movable seat that is slidably connected to the stable base, and a gear column is rotatably disposed within the movable seat, and the gear column is meshed with the toothed guide rail.

[0009] Through the above structural design, the rotational motion is precisely converted into linear displacement by the precise meshing of the gear column and the toothed guide rail.

[0010] Furthermore, a rotating rod is fixedly provided at one end of the gear column, and the end of the rotating rod away from the gear column rotates through the movable seat and is fixedly provided with a guide rail knob.

[0011] The above structural design improves the ease of operation and human-computer interaction of the device.

[0012] Furthermore, the movable seat is provided with a groove, and a sliding plate is provided in the groove. A connecting rod is fixedly provided on the sliding plate, and a roller is rotatably provided at the end of the connecting rod away from the sliding plate.

[0013] The above structural design reduces the frictional resistance between the moving base and the toothed guide rail.

[0014] Furthermore, the rotating assembly includes a rotating platform, and a support frame is provided on the outside of the rotating platform.

[0015] The above structural design provides a stable and rotatable support platform for the endoscope mount or target body.

[0016] Furthermore, the support frame is provided with a limiting groove, and the rotating platform is provided with an extension rod, which cooperates with the limiting groove to limit the rotation angle of the rotating platform.

[0017] The above structural design enables precise limitation and indication of the rotation angle of the rotating platform.

[0018] Furthermore, the limiting groove is threaded with a positioning pin for clamping the extension rod, and a fixing knob is provided at the end of the positioning pin away from the limiting groove.

[0019] The above structural design provides a fast and reliable locking mechanism.

[0020] Furthermore, the extension rod is a quadrangular prism structure, and its side plane forms a surface contact fit with the inner wall of the limiting groove.

[0021] Through the above structural design, the side plane of the extension rod forms a large-area surface contact with the inner wall of the limiting groove, which enhances the stability and torsional resistance when locking.

[0022] Compared with the prior art, the beneficial effects of this utility model are: the device for measuring the viewing angle of an electronic endoscope simplifies the operation process, reduces equipment complexity and cost through the synergistic effect of multi-degree-of-freedom translation and angle adjustment mechanisms, and achieves efficient and accurate measurement of the viewing angle of the electronic endoscope. The specific details are as follows:

[0023] This device for measuring the viewing angle of an electronic endoscope achieves high-precision, convenient, and stable position adjustment of the endoscope body and target body in three-dimensional space (X, Y, Z) through the precise meshing of the toothed guide rail and guide rail assembly, combined with the manual rotation of the guide rail knob to drive the gear column. Simultaneously, the rotating assembly visually indicates the angle by moving the extension rod within the limiting groove, and the target's pitch / yaw angle is securely locked and quickly released via a positioning pin and a fixing knob. The overall structure integrates multi-directional translation and angle adjustment functions, effectively overcoming the dependence on precision rotating mechanisms and strict alignment required by traditional rotation measurement methods. It simplifies the operation process, reduces equipment complexity and cost, and improves measurement efficiency and practicality, providing a reliable technical means for the accurate and rapid measurement of the viewing angle of electronic endoscopes. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the endoscope mechanism of this utility model;

[0026] Figure 3 This is a schematic diagram of the disassembled structure of the endoscope mechanism of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the target mechanism of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the guide rail assembly of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the rotating component of this utility model.

[0030] In the diagram: 1. Base; 2. Endoscope mechanism; 3. Target mechanism; 4. Guide rail assembly; 5. Rotating assembly; 20. Stabilizer 1; 21. Toothed guide rail 1; 22. Endoscope mounting base; 30. Stabilizer 2; 31. Toothed guide rail 2; 32. Connecting plate; 33. Stabilizer 3; 34. Toothed guide rail 3; 35. Target body; 40. Moving base; 41. Gear column; 42. Rotating rod; 43. Guide rail knob; 44. Groove; 45. Slide plate; 46. Connecting rod; 47. Roller; 50. Rotating platform; 51. Extension rod; 52. Support frame; 53. Limiting groove; 54. Fixing knob; 55. Positioning pin. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1-6 As shown, this utility model discloses a device for measuring the viewing angle of an electronic endoscope, including a base 1, and an endoscope mechanism 2 and a corresponding target mechanism 3 are arranged on the base 1. The endoscope mechanism 2 includes a stabilizing seat 20 fixedly connected to the base 1, and a toothed guide rail 21 is fixedly arranged on the stabilizing seat 20. A movable guide rail assembly 4 is arranged on the toothed guide rail 21, and a rotating assembly 5 is arranged on the guide rail assembly 4. An endoscope fixing seat 22 is arranged on the rotating assembly 5. The endoscope body is provided, and the target mechanism 3 includes a second stabilizing seat 30 fixedly connected to the base 1. A toothed guide rail 31 is fixedly provided on the second stabilizing seat 30. A guide rail assembly 4 is provided on the second stabilizing seat 31. A connecting plate 32 is provided on the guide rail assembly 4. A third stabilizing seat 33 is fixedly provided on the connecting plate 32. A third toothed guide rail 34 is provided on the third stabilizing seat 33. A guide rail assembly 4 is provided on the third toothed guide rail 34. A rotating assembly 5 is provided on the guide rail assembly 4. A target body 35 is fixedly provided on the rotating assembly 5.

[0033] like Figure 5As shown, the guide rail assembly 4 includes a movable seat 40 that is slidably connected to the stabilizing seats 20, 30, and 33. A gear column 41 is rotatably disposed inside the movable seat 40, and the gear column 41 is meshed with the toothed guide rails 21, 31, and 34. Through the precise meshing of the gear column 41 with the toothed guide rails 21, 31, and 34, the rotational motion is accurately converted into linear displacement, ensuring that the movement of the endoscope body or target body 35 on their respective guide rails is both smooth and controllable, and can be precisely positioned, effectively supporting the accuracy of subsequent viewing angle measurements.

[0034] A rotating rod 42 is fixedly installed at one end of the gear column 41, and the end of the rotating rod 42 away from the gear column 41 rotates through the movable seat 40 and is fixedly installed with a guide rail knob 43. This improves the ease of operation and human-machine interaction of the device. The operator can drive the gear column 41 to rotate by manually rotating the guide rail knob 43 without the need for additional tools, thereby accurately controlling the position of the movable seat 40 on the toothed guide rails 21, 31, and 34. This simplifies the adjustment steps, reduces the complexity of operation, and improves the measurement efficiency.

[0035] The movable seat 40 is provided with a groove 44, and a slide plate 45 is provided in the groove 44. A connecting rod 46 is fixedly provided on the slide plate 45, and a roller 47 is rotatably provided at the end of the connecting rod 46 away from the slide plate 45. This reduces the frictional resistance between the movable seat 40 and the toothed guide rails 21, 31, 34. The roller 47 converts sliding friction into rolling friction, making the movable seat 40 move more smoothly and effortlessly along the guide rails, avoiding jamming, further improving the sensitivity and accuracy of position adjustment, and helping to extend the service life of the guide rails and moving parts.

[0036] like Figure 6 As shown, the rotating assembly 5 includes a rotating platform 50, and a support frame 52 is provided on the outside of the rotating platform 50, providing a stable and rotatable support platform for the endoscope mounting base 22 or the target body 35. The support frame 52 fixes the rotation center and is provided with a scale, and the rotating platform 50 can rotate around the center, making it easy to adjust the angle of the endoscope or target.

[0037] The support frame 52 is provided with a limiting groove 53, and the rotating platform 50 is provided with an extension rod 51. The extension rod 51 cooperates with the limiting groove 53 to limit the rotation angle of the rotating platform 50, thereby realizing the precise limitation and indication of the rotation angle of the rotating platform 50. The extension rod 51 rotates with the platform, and the travel of its end in the limiting groove 53 directly represents the rotation angle. The limiting groove 53 itself physically limits the rotation range, preventing excessive rotation from causing equipment damage or measurement failure, and also implicitly includes the function of an angle scale, which facilitates angle setting and reading.

[0038] The limiting groove 53 is threaded with a positioning pin 55 for clamping the extension rod 51, and a fixing knob 54 is provided at the end of the positioning pin 55 away from the limiting groove 53, which provides a fast and reliable locking mechanism. When the rotating platform 50 is adjusted to the required angle, the positioning pin 55 is moved by tightening the fixing knob 54, which can firmly clamp the extension rod 51 in the limiting groove 53, effectively preventing angle deviation caused by accidental contact or vibration during the measurement process, ensuring the stability of the measurement state and guaranteeing the reliability of the measurement results.

[0039] The extension rod 51 is a quadrangular prism structure, and its side plane forms a surface contact fit with the inner wall of the limiting groove 53. The large-area surface contact fit between the side plane of the extension rod 51 and the inner wall of the limiting groove 53 enhances the stability and anti-torsion ability during locking, and improves the repeatability and stability of the measurement.

[0040] When using this device for measuring the viewing angle of an electronic endoscope, the endoscope body is fixed and its axis is stabilized by the stabilizing seat 20 and toothed guide rail 21 of the endoscope mechanism 2. The target mechanism 3 uses the stabilizing seat 30, toothed guide rail 31, connecting plate 32, stabilizing seat 33, and toothed guide rail 34 to construct a three-dimensional adjustable platform. The operator manually rotates the guide rail knobs 43 on each guide rail assembly 4 to drive the gear column 41 to mesh with the toothed guide rail, thereby driving the moving seat 40 and the target body 35 above it to move precisely along the X, Y, and Z directions. At the same time, the pitch or yaw angle of the target is adjusted by the rotating platform 50 of the rotating assembly 5, so that the target can be accurately moved to the center of the endoscope's field of view and the vanishing point of the field of view. Finally, based on the linear displacement and rotation angle data of the target when it moves from the center to the vanishing point of the field of view, combined with geometric relationships, the actual viewing angle of the endoscope is calculated.

[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for measuring the viewing angle of an electronic endoscope, characterized by, The system includes a base (1), and an endoscope mechanism (2) and a corresponding target mechanism (3) are provided on the base (1). The endoscope mechanism (2) includes a stabilizing seat (20) fixedly connected to the base (1), and a toothed guide rail (21) is fixedly provided on the stabilizing seat (20). A movable guide rail assembly (4) is provided on the toothed guide rail (21), and a rotating assembly (5) is provided on the guide rail assembly (4). An endoscope fixing seat (22) is provided on the rotating assembly (5), and an endoscope body is provided on the endoscope fixing seat (22). The target mechanism (3) includes... A second stable seat (30) is fixedly connected to the base (1), and a toothed guide rail (31) is fixedly provided on the second stable seat (30). A guide rail assembly (4) is provided on the second toothed guide rail (31), and a connecting plate (32) is provided on the guide rail assembly (4). A third stable seat (33) is fixedly provided on the connecting plate (32), and a third toothed guide rail (34) is provided on the third stable seat (33). A guide rail assembly (4) is provided on the third toothed guide rail (34), and a rotating assembly (5) is provided on the rotating assembly (5). A target body (35) is fixedly provided on the rotating assembly (5).

2. A device for measuring the viewing angle of an electronic endoscope according to claim 1, characterized in that: The guide rail assembly (4) includes a movable seat (40) that is slidably connected to a stabilizing seat (20, 30, 33). A gear column (41) is rotatably disposed inside the movable seat (40), and the gear column (41) is meshed with a toothed guide rail (21, 31, 34).

3. The device for measuring the viewing angle of an electronic endoscope according to claim 2, characterized in that: One end of the gear column (41) is fixedly provided with a rotating rod (42), and the end of the rotating rod (42) away from the gear column (41) rotates through the movable seat (40) and is fixedly provided with a guide rail knob (43).

4. The device for measuring the viewing angle of an electronic endoscope according to claim 2, characterized in that: The movable seat (40) is provided with a groove (44), and a sliding plate (45) is provided in the groove (44). A connecting rod (46) is fixedly provided on the sliding plate (45), and a roller (47) is rotatably provided at the end of the connecting rod (46) away from the sliding plate (45).

5. The device for measuring the viewing angle of an electronic endoscope according to claim 1, characterized in that: The rotating assembly (5) includes a rotating platform (50), and a support frame (52) is provided on the outside of the rotating platform (50).

6. The device for measuring the viewing angle of an electronic endoscope according to claim 5, characterized in that: The support frame (52) is provided with a limiting groove (53), and the rotating platform (50) is provided with an extension rod (51), and the extension rod (51) cooperates with the limiting groove (53) to limit the rotation angle of the rotating platform (50).

7. The device for measuring the viewing angle of an electronic endoscope according to claim 6, characterized in that: The limiting groove (53) is threaded with a positioning pin (55) for clamping the extension rod (51), and a fixing knob (54) is provided at the end of the positioning pin (55) away from the limiting groove (53).

8. The device for measuring the viewing angle of an electronic endoscope according to claim 6, characterized in that: The extension rod (51) is a quadrangular prism structure, and its side plane forms a surface contact fit with the inner wall of the limiting groove (53).

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