An endoscope image testing tool

Abstract

The utility model discloses an endoscope image test frock, include: fixed subassembly, with the adjusting assembly of fixed subassembly sliding connection, set up the connecting assembly of adjusting assembly top, and the pressure block of a plurality of bolted connections in connecting assembly one side, fixed subassembly includes: base, set up the dovetail groove no.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to an endoscope image testing fixture. Background Technology

[0002] As a key piece of equipment in the medical device field, the endoscope, with its flexible and bendable characteristics, can penetrate deep into the complex cavities of the human body to complete diagnosis and treatment. Its image quality directly determines the accuracy of lesion diagnosis; therefore, image performance testing before shipment is crucial. When testing core parameters such as relative image distortion, it is essential to ensure that the endoscope tip is directly facing the test image and to precisely adjust the axial angle of the tip. This is a critical prerequisite for ensuring reliable test data.

[0003] Currently, the testing fixtures in the industry can only achieve simple clamping functions, lacking specialized positioning mechanisms and axial angle adjustment structures. They cannot independently complete the position calibration and angle adjustment of the endoscope lens end, making it difficult to meet the needs of precise testing.

[0004] Due to the lack of a positioning design adapted to flexible serpentine frames and the absence of clamping structures suitable for different outer diameters, problems such as over-tight clamping damaging the flexible serpentine frames or loose clamping causing positional shifts during testing are prone to occur. This makes it impossible to achieve precise control of the axial angle of the test image and to ensure consistency in the distance between the camera and the test image, resulting in poor repeatability and low accuracy of test data, failing to meet the testing requirements of standardized production. Therefore, to address these shortcomings, an endoscope image testing fixture is proposed. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides an endoscope image testing fixture.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an endoscope image testing fixture, comprising: a fixing component, an adjusting component slidably connected to the fixing component, a connecting component disposed on the top of the adjusting component, and a plurality of pressure blocks bolted to one side of the connecting component;

[0007] The fixing component includes: a base, and dovetail grooves disposed on both sides of the top of the base;

[0008] The adjustment component includes: a sliding plate, and dovetail protrusions on both sides of the bottom of the sliding plate; the sliding plate is slidably connected to the base through the dovetail protrusions and the dovetail groove.

[0009] Each side of the pressure block has a groove, and the inner wall of the groove is provided with an arc-shaped rubber pad. An endoscope flexible lens is provided between the connecting component and the pressure block. The arc-shaped rubber pad is used to buffer the clamping force of the pressure block on the endoscope flexible lens.

[0010] In a preferred embodiment of the present invention, a fixing plate is provided on one side of the top of the base, a positioning hole is provided on one side of the fixing plate, and an arc-shaped through groove is provided on the top of the fixing plate.

[0011] In a preferred embodiment of the present invention, a T-shaped groove is provided at the bottom of the sliding plate, the T-shaped groove is used to lock with a dovetail groove one by bolts, and a dovetail groove two is provided at the top of the sliding plate.

[0012] In a preferred embodiment of the present invention, the connecting component includes: a side plate, and a dovetail boss 1 disposed at the bottom of the side plate; the side plate is slidably connected to the sliding plate through the dovetail boss 1 and the dovetail groove 2, and a guide groove is provided on one side of the side plate.

[0013] In a preferred embodiment of the present invention, a rotating assembly is provided on one side of the fixed plate, the rotating assembly including: a test rotating plate, and a turntable boss provided on one side of the test rotating plate; a test piece is bolted to the other side of the test rotating plate.

[0014] In a preferred embodiment of this utility model, the turntable boss passes through the positioning hole and is bolted to the fixing plate. The outer wall of the turntable boss is provided with a threaded hole, and the arc-shaped through groove is connected to the threaded hole by bolts to fix the angle of the test turntable.

[0015] In a preferred embodiment of the present invention, a limiting component is provided on one side of the side plate. The limiting component includes: a positioning block and a guide boss disposed on one side of the positioning block; the positioning block is limited by the guide boss and the guide groove.

[0016] In a preferred embodiment of this utility model, a U-shaped groove and a limiting hole are provided on one side of the positioning block, and the positioning block is connected to the side plate by bolts through the U-shaped groove.

[0017] In a preferred embodiment of this utility model, a positioning post is provided on the inner wall of the limiting hole, and a positioning boss adapted to the positioning hole is provided at one end of the positioning post. The positioning post is fixed in the limiting hole by cooperating with the positioning hole through the positioning boss, and the flexible endoscope is connected to the positioning block through the positioning post.

[0018] In a preferred embodiment of this utility model, the inner wall of the arc-shaped through groove is provided with scale lines, which are evenly distributed along the arc length direction of the arc-shaped through groove to accurately indicate the rotation angle of the test plate.

[0019] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0020] (1) This utility model provides an endoscope image testing fixture. The positioning block and positioning post of the limiting component form a matching structure. The positioning post can be adapted to the instrument channel of the flexible endoscope. The positioning block slides and adapts to the guide groove of the side plate through the guide boss, which can accurately align with the end face of the flexible serpentine. This mechanical positioning structure replaces the existing fixture without positioning design, which can directly realize the stable positioning of the end face of the flexible serpentine, avoid the displacement of the flexible endoscope during the test due to the lack of positioning in the existing fixture, further ensure the consistency of the endoscope lens position during subsequent image acquisition, and lay the foundation for the accuracy of test data.

[0021] (2) This utility model provides an endoscope image testing fixture. The inner wall of the clamping block is provided with an arc-shaped rubber pad, and the clamping block is detachably connected to the side plate of the connecting component by bolts. It can clamp the end, bending part and insertion part of the endoscope flexible lens with different outer diameters respectively. The flexible contact characteristics of the arc-shaped rubber pad can buffer the clamping force. Combined with the precise alignment and installation of the clamping block, it directly solves the problems of damage to the flexible serpentine due to excessive tightness and loosening due to excessive looseness caused by the single clamping structure of the existing fixture. It further ensures that the clamping of different outer diameter sections of the endoscope flexible lens can remain stable and undamaged, adapting to the differences in its multi-section structure and improving the adaptability of the fixture.

[0022] (3) This utility model provides an endoscope image testing fixture. The sliding plate of the adjusting component is provided with a T-slot and a dovetail groove. The T-slot can be locked with the dovetail groove of the fixed component base by bolts. The dovetail groove slides with the dovetail boss of the connecting component side plate. With the sliding guidance of the dovetail groove and the locking function of the T-slot, the center distance between the endoscope flexible endoscope and the test piece on the test rotating plate can be accurately adjusted. This directly improves the defect of existing fixtures that cannot accurately control the distance between the camera end and the test image. Furthermore, it can stably maintain the adjusted distance, avoid distance deviation during the test, ensure the consistency of distance parameters in different test stages, and improve the repeatability of test data.

[0023] (4) This utility model provides an endoscope image testing fixture. The fixing plate of the fixing component has an arc-shaped through groove and a positioning hole. The test rotating plate of the rotating component cooperates with the positioning hole through the turntable boss. The threaded hole of the test rotating plate and the arc-shaped through groove are connected by bolts. The angle of the test piece can be adjusted by rotating the test rotating plate. With the angle limiting and locking function of the arc-shaped through groove, the axial angle can be accurately fixed, which directly solves the problem that the existing fixture cannot adjust the axial angle of the test image. Furthermore, the angle can be accurately controlled without additional structural adjustments, so that the endoscope lens end is always facing the test piece, which meets the stringent angle requirements of the test of parameters such as relative image distortion, and ensures the reliability of the test results. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0025] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0026] Figure 2 This is a three-dimensional structural diagram of the fixing component according to a preferred embodiment of the present invention;

[0027] Figure 3 This is a three-dimensional structural diagram of the rotating component according to a preferred embodiment of the present invention;

[0028] Figure 4 This is a three-dimensional structural diagram of a flexible endoscope according to a preferred embodiment of the present invention.

[0029] Figure 5 This is a three-dimensional structural diagram of the adjustment component according to a preferred embodiment of the present invention;

[0030] Figure 6 This is an exploded three-dimensional view of the limiting component of a preferred embodiment of this utility model.

[0031] In the diagram: 1. Fixing component; 11. Base; 12. Dovetail groove one; 13. Fixing plate; 14. Positioning hole; 15. Arc-shaped through groove; 2. Flexible endoscope; 3. Connecting component; 31. Side plate; 32. Dovetail boss one; 33. Guide groove; 4. Rotating component; 41. Test rotating plate; 42. Turntable boss; 43. Test piece; 5. Adjusting component; 51. Sliding plate; 52. Dovetail boss two; 53. T-slot; 54. Dovetail groove two; 6. Limiting component; 61. Positioning block; 62. Guide boss; 63. Positioning post; 7. Pressure block; 8. Arc-shaped rubber pad. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] like Figure 1 , Figure 2 and Figure 6 As shown, an endoscope image testing fixture includes: a fixing component 1, an adjusting component 5 slidably connected to the fixing component 1, a connecting component 3 disposed on the top of the adjusting component 5, and a plurality of pressure blocks 7 bolted to one side of the connecting component 3.

[0034] The fixing component 1 includes a base 11, with four support legs welded to the bottom periphery of the base 11. The bottom of the support legs is provided with anti-slip pads to provide a basic support for the device. Dovetail grooves 12 are provided on both sides of the top of the base 11. The dovetail grooves 12 extend along the length of the base 11 and are parallel and symmetrically distributed with the groove openings facing upwards, providing a guide track for the sliding of the adjusting component 5.

[0035] The adjusting component 5 includes a sliding plate 51, which is horizontally mounted above the base 11. Dovetail protrusions 52 are provided on both sides of the bottom of the sliding plate 51. The dovetail protrusions 52 and the dovetail grooves 12 form a matching sliding pair. The sliding plate 51 is slidably connected to the base 11 through the dovetail protrusions 52 and the dovetail grooves 12. The cross-sectional shape of the dovetail protrusions 52 is completely matched with the inner cavity shape of the dovetail grooves 12, and the outer wall of the protrusion and the groove wall maintain a small gap to ensure that the sliding plate 51 can slide smoothly along the length direction of the dovetail grooves 12, thereby realizing the linear position adjustment of the adjusting component 5 relative to the fixed component 1. One of the dovetail protrusions 52 is provided with a threaded hole, which is used to connect the dovetail grooves 12 for locking and fixing the sliding plate 51.

[0036] Each side of the pressure block 7 has a groove, which is located on the side facing the flexible endoscope 2. The inner wall of the groove is provided with an arc-shaped rubber pad 8, which is made of elastic material. The flexible endoscope 2 is placed between the connecting component 3 and the pressure block 7. The arc-shaped rubber pad 8 is used to buffer the clamping force of the pressure block 7 on the flexible endoscope 2.

[0037] like Figure 1 As shown, specifically, a fixing plate 13 is provided on one side of the top of the base 11. The fixing plate 13 is integrally formed on the top of the base 11 near one end. A positioning hole 14 is provided on one side of the fixing plate 13. An arc-shaped through groove 15 is provided on the top, with the center of the positioning hole 14 as the arc center. A circular positioning hole 14 is provided on the side of the plate facing the adjustment component 5. An arc-shaped through groove 15 is provided on the top of the fixing plate 13.

[0038] like Figure 6 As shown, specifically, the bottom of the sliding plate 51 is provided with a T-shaped groove 53, which is used to lock with the dovetail boss 32 by bolts, and the top of the sliding plate 51 is provided with a dovetail groove 54.

[0039] like Figure 5 and Figure 6 As shown, specifically, the connecting component 3 includes a side plate 31, which is in a vertical state. The bottom of the side plate 31 is provided with a dovetail boss 32. The dovetail boss 32 and the dovetail groove 54 on the top of the sliding plate 51 form another set of sliding pairs. The side plate 31 is slidably connected to the sliding plate 51 through the dovetail boss 32 and the dovetail groove 54. The dovetail groove 54 is opened along the width direction of the sliding plate 51 and is perpendicular to the dovetail groove 12. Therefore, the side plate 31 can drive the connecting component 3 to slide along the width direction of the sliding plate 51, thereby realizing the lateral position adjustment between it and the adjusting component 5, and thus adjusting the lateral clamping position of the endoscope flexible endoscope 2. A guide groove 33 is opened on one side of the side plate 31. The guide groove 33 is opened on one side of the positioning block 61 for inserting the guide boss 62.

[0040] like Figure 2 and Figure 3 As shown, a rotating assembly 4 is further provided on one side of the fixed plate 13. The rotating assembly 4 includes a test rotating plate 41, which is arranged parallel to the fixed plate 13. A turntable boss 42 is provided on one side of the test rotating plate 41. The turntable boss 42 on one side is a cylindrical structure. The turntable boss 42 passes through the positioning hole 14 and is locked to the fixed plate 13 by bolts.

[0041] The other side of the test plate 41 is bolted to a test piece 43, which rotates synchronously with the plate to simulate the contact test scenario of the flexible endoscope 2 at different angles.

[0042] Furthermore, the turntable boss 42 passes through the positioning hole 14 and is bolted to the fixing plate 13. The outer wall of the turntable boss 42 is provided with a threaded hole. The arc-shaped through groove 15 is connected to the threaded hole by bolts to fix the angle of the test plate 41. When the test plate 41 rotates around the axis of the turntable boss 42 to the target angle, the bolt passing through the arc-shaped through groove 15 engages with the threaded hole. The bolt head presses against the groove wall of the arc-shaped through groove 15, rigidly fixing the test plate 41 to the fixing plate 13, thereby achieving angle locking.

[0043] It should be noted that the inner wall of the arc-shaped through groove 15 is provided with scale lines. The scale lines are evenly distributed along the arc length direction of the arc-shaped through groove 15 to accurately indicate the rotation angle of the test rotating plate 41. The scale lines on the inner wall of the arc-shaped through groove 15 are set with the positioning hole 14 as the center and are set at 1° intervals along the arc length direction, which can accurately indicate the rotation angle of the test rotating plate 41.

[0044] like Figure 2 and Figure 6 As shown, a limiting component 6 is further provided on one side of the side plate 31. The limiting component 6 is installed on the side of the side plate 31 near the fixed plate 13. The limiting component 6 includes a positioning block 61. A guide boss 62 is provided on one side of the positioning block 61. The guide boss 62 of the positioning block 61 is a strip structure adapted to the guide groove 33. The guide boss 62 is embedded in the guide groove 33. The positioning block 61 is limited by the guide boss 62 and the guide groove 33.

[0045] Furthermore, a U-shaped groove and a limiting hole are provided on one side of the positioning block 61. The positioning block 61 is bolted to the side plate 31 through the U-shaped groove. When the bolt is tightened, the two side walls of the U-shaped groove clamp the side plate 31, thereby fixing the width of the positioning block 61.

[0046] Furthermore, a positioning post 63 is provided on the inner wall of the limiting hole. One end of the positioning post 63 is integrally formed with a positioning boss. The inner wall of the limiting hole of the positioning block 61 is provided with a positioning hole 14 that matches the positioning boss. The positioning post 63 is fixed in the limiting hole through the interference fit between the positioning boss and the positioning hole 14. The instrument channel of the flexible endoscope 2 is sleeved on the outer wall of the positioning post 63 and connected to the positioning block 61 through the positioning post 63, which plays a radial limiting role for the flexible endoscope 2 and prevents it from shifting laterally during the test.

[0047] When using this utility model, when using the endoscope image testing fixture, first align the end of the positioning post 63 with the positioning boss with the positioning hole 14 on the inner wall of the positioning hole of the positioning block 61. Press and fix the positioning post 63 in the positioning hole of the positioning block 61 by interference fit, and complete the pre-assembly of the positioning post 63 and the positioning block 61. The guide boss 62 of the positioning block 61 slides along the guide groove 33 of the side plate 31 of the connecting component 3. Combined with the adjustment space of the U-shaped groove, finely adjust the position of the positioning block 61 so that the soft snake bone end face is accurately positioned. Then, use bolts to pass through the U-shaped groove to lock the positioning block 61 and the side plate 31.

[0048] Then, several pressure blocks 7 are fixed to one side of the side plate 31 by bolts, so that the arc-shaped rubber pad 8 in the groove of the pressure block 7 fits the head end, bending part and insertion part of the endoscope flexible endoscope 2. The flexible buffer of the arc-shaped rubber pad 8 avoids clamping damage, and at the same time, it adapts to different outer diameter sections to prevent clamping loosening.

[0049] Subsequently, the sliding plate 51 of the adjusting component 5 slides along the dovetail groove 12 of the base 11 of the fixing component 1 via the bottom dovetail boss 2 52 to achieve the initial horizontal adjustment of the endoscope flexible endoscope 2. After adjustment, the sliding plate 51 is locked to the base 11 by the internal hexagonal head bolt in the T-slot 53.

[0050] The side plate 31 of the connecting component 3 slides along the dovetail groove 54 of the sliding plate 51 through the bottom dovetail boss 32 and is perpendicular to the dovetail groove 12, thus completing the precise two-dimensional position adjustment of the flexible endoscope 2. After it is in place, the side plate 31 and the sliding plate 51 are locked with bolts.

[0051] Next, the test piece 43 is fixed to the test plate 41 of the rotating assembly 4 with bolts. The test plate 41 can rotate flexibly through the clearance fit between the turntable boss 42 and the positioning hole 14 of the base 11 fixing plate 13.

[0052] Adjust the test plate 41 to the target angle according to the scale lines on the inner wall of the arc-shaped through groove 15, and then use bolts to lock the test piece 43 and the end of the flexible endoscope 2 through the threaded hole of the arc-shaped through groove 15 and the turntable boss 42, so that the test piece 43 and the end of the flexible endoscope 2 are precisely aligned. Finally, the whole preparation and adjustment process of the image test of the flexible endoscope 2 is completed, ensuring that the position and angle are stable and there is no damage to the instrument during the test.

[0053] Based on the preferred embodiments of this utility model described above, 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. An endoscope image testing fixture, characterized in that, include: The fixed component (1), the adjusting component (5) which is slidably connected to the fixed component (1), the connecting component (3) which is set on the top of the adjusting component (5), and several pressure blocks (7) which are bolted to one side of the connecting component (3). The fixing component (1) includes: a base (11) and dovetail grooves (12) disposed on both sides of the top of the base (11). The adjustment component (5) includes: a sliding plate (51) and dovetail protrusions (52) on both sides of the bottom of the sliding plate (51); the sliding plate (51) is slidably connected to the base (11) through the dovetail protrusions (52) and the dovetail groove (12); The pressure block (7) has a groove on one side, and an arc-shaped rubber pad (8) is provided on the inner wall of the groove. An endoscope flexible endoscope (2) is provided between the connecting component (3) and the pressure block (7). The arc-shaped rubber pad (8) is used to buffer the clamping force of the pressure block (7) on the endoscope flexible endoscope (2).

2. The endoscopic image testing fixture according to claim 1, characterized in that: A fixing plate (13) is provided on one side of the top of the base (11), a positioning hole (14) is provided on one side of the fixing plate (13), and an arc-shaped through groove (15) is provided on the top of the fixing plate (13).

3. The endoscopic image testing fixture according to claim 1, characterized in that: The bottom of the sliding plate (51) is provided with a T-shaped groove (53), which is used to lock with the dovetail groove one (12) by bolts, and the top of the sliding plate (51) is provided with a dovetail groove two (54).

4. The endoscopic image testing fixture according to claim 3, characterized in that: The connecting component (3) includes: a side plate (31) and a dovetail boss (32) at the bottom of the side plate (31); the side plate (31) is slidably connected to the sliding plate (51) through the dovetail boss (32) and the dovetail groove (54); and a guide groove (33) is provided on one side of the side plate (31).

5. The endoscopic image testing fixture according to claim 2, characterized in that: A rotating assembly (4) is provided on one side of the fixed plate (13). The rotating assembly (4) includes: a test rotating plate (41) and a turntable boss (42) provided on one side of the test rotating plate (41); a test piece (43) is bolted to the other side of the test rotating plate (41).

6. The endoscopic image testing fixture according to claim 5, characterized in that: The turntable boss (42) passes through the positioning hole (14) and is bolted to the fixing plate (13). The outer wall of the turntable boss (42) is provided with a threaded hole. The arc-shaped through groove (15) is bolted to the threaded hole to fix the angle of the test turntable (41).

7. The endoscopic image testing fixture according to claim 4, characterized in that: A limiting component (6) is provided on one side of the side plate (31). The limiting component (6) includes: a positioning block (61) and a guide boss (62) provided on one side of the positioning block (61). The positioning block (61) is limited by the guide boss (62) and the guide groove (33).

8. The endoscopic image testing fixture according to claim 7, characterized in that: The positioning block (61) has a U-shaped groove and a limiting hole on one side, and the positioning block (61) is bolted to the side plate (31) through the U-shaped groove.

9. The endoscopic image testing fixture according to claim 8, characterized in that: The inner wall of the limiting hole is provided with a positioning post (63). One end of the positioning post (63) is provided with a positioning boss that is adapted to the positioning hole (14). The positioning post (63) is fixed in the limiting hole by cooperating with the positioning hole (14) through the positioning boss. The flexible endoscope (2) is connected to the positioning block (61) through the positioning post (63).

10. An endoscopic image testing fixture according to claim 5, characterized in that: The inner wall of the arc-shaped through groove (15) is provided with scale lines, which are evenly distributed along the arc length direction of the arc-shaped through groove (15) to accurately indicate the rotation angle of the test plate (41).

Images