Endoscope optical performance testing device
By designing an endoscope optical performance testing device, the problem of endoscope optical performance testing was solved, enabling accurate testing of both rigid and flexible endoscopes, ensuring imaging stability and a wide testing range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SCIVITA MEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-26
AI Technical Summary
Existing technologies are insufficient to effectively detect the optical performance of endoscopes, affecting their imaging quality and clinical application effectiveness.
An endoscope optical performance testing device was designed, including a substrate, an angle adjustment structure, a positioning structure, and a measurement structure. Through angle adjustment and distance adjustment, it is suitable for testing the optical performance of rigid and flexible endoscopes.
It enables accurate detection of the optical performance of endoscopes, ensuring imaging stability and a wide detection range, and is suitable for different types of endoscopes.
Smart Images
Figure CN224416406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of medical devices, specifically to an endoscope optical performance testing device. Background Technology
[0002] The optical performance testing of endoscopes is a crucial step in ensuring their imaging quality and clinical application effectiveness. Factors such as the endoscope's refractive index, field of view, depth of field, distortion rate, and color reproduction all significantly impact image quality. The field of view determines the range that the endoscope can observe in a single operation, affecting the efficiency of surgery or examination. Depth of field assesses the range of clear imaging at different object distances, adapting to the observation needs at varying distances in clinical practice. Color reproduction performance ensures that the colors in the endoscopic image match the actual tissue, facilitating physician identification of lesions (such as color differences in bleeding or inflammation). Therefore, a fixture is needed to test the optical performance of endoscopes to ensure their stability. Utility Model Content
[0003] To address the aforementioned technical problems, the main objective of this invention is to provide an endoscope optical performance testing device, which aims to effectively and accurately test the optical performance of the endoscope to ensure the stability of the endoscope's operation.
[0004] To achieve the above objectives, this utility model proposes an endoscope optical performance testing device, comprising:
[0005] substrate;
[0006] An angle adjustment structure is rotatably mounted on the substrate.
[0007] A positioning structure is provided for fixing an endoscope thereon. The positioning structure includes a positioning plate disposed on the angle adjustment structure. The positioning plate can rotate together with the angle adjustment structure so that the positioning plate can rotate to fit against the front detection surface of the endoscope.
[0008] A measuring structure is movably mounted on the angle adjustment structure and spaced relative to the positioning plate. The measuring structure has a travel distance that moves closer to and further away from the positioning plate to adjust the distance between the measuring structure and the front detection surface of the endoscope located on the positioning plate.
[0009] Optionally, the substrate has a first plane;
[0010] The angle adjustment structure includes an angle adjustment rod, which has a first end and a second end that are arranged opposite to each other along its length. The first end of the angle adjustment rod is rotatably connected to the substrate and can rotate along the first plane. The positioning plate is disposed at the first end of the angle adjustment rod, and the measuring structure can reciprocate along the length of the angle adjustment rod.
[0011] Optionally, the positioning plate has a positioning surface perpendicular to the length direction of the angle adjusting rod, and the positioning surface is oriented toward the measuring structure;
[0012] The positioning structure further includes a positioning seat, which is disposed on the base plate and close to the positioning plate. The positioning seat is adapted to fix the endoscope body thereon so that the front detection surface of the endoscope is in contact with the positioning surface.
[0013] Optionally, the positioning seat has a through hole on the side facing the angle adjustment rod, the through hole being adapted to expose the front detection surface of the endoscope;
[0014] When the front detection surface of the endoscope is flat, the center line of the angle adjustment rod extending along its length is coaxial or parallel to the center line of the through hole; when the front detection surface of the endoscope is inclined, the center line of the angle adjustment rod extending along its length is at an angle to the center line of the through hole.
[0015] Optionally, the measuring structure further has a reciprocating stroke in a direction perpendicular to the angle adjustment rod to adjust the angle between the centerline of the measuring structure and the centerline of the front detection surface of the endoscope.
[0016] Optionally, the measuring structure includes a measuring block and a measuring box movably mounted on the measuring block. The measuring block can reciprocate along the length direction of the angle adjusting rod, and the measuring box can reciprocate in a direction perpendicular to the angle adjusting rod.
[0017] Optionally, one of the measuring block and the measuring box is provided with a first slide rail, and the other is provided with a first slider that slides in cooperation with the first slide rail. The first slide rail and the first slider cooperate to adjust the angle between the center line of the measuring box and the center line of the front detection surface of the endoscope.
[0018] Optionally, one of the measuring block and the angle adjusting rod is provided with a second slide rail, and the other is provided with a second slider that slides in cooperation with the second slide rail. The second slide rail and the second slider cooperate to allow the measuring block to move relative to the angle adjusting rod along its length.
[0019] Optionally, a third slide rail is provided on one of the substrate and the angle adjustment rod, and a third slider is provided on the other, which slides in cooperation with the third slide rail. The angle adjustment rod rotates relative to the substrate, causing the third slider to slide along the third slide rail.
[0020] Optionally, the substrate is provided with a guide groove, which is arranged in an arc shape centered on the rotation point of the angle adjustment rod, and the guide groove forms the third slide rail; the third slider is disposed on the angle adjustment rod and protrudes from the side of the angle adjustment rod facing the first plane.
[0021] The technical solution provided by this utility model has the following beneficial effects:
[0022] This utility model provides an endoscope optical performance testing device, comprising a base plate, an angle adjustment structure, a positioning structure, and a measuring structure. The positioning structure is adapted for mounting and fixing an endoscope thereon, ensuring that after the endoscope is fixed, the endoscope's front detection surface can be fitted against the positioning plate, thereby fixing the endoscope's front detection surface. Rotation of the angle adjustment structure relative to the base plate causes the positioning plate to rotate as well, allowing it to rotate until it is in contact with the endoscope's front detection surface, thus fixing the position of the front detection surface. Furthermore, the endoscope's front surface faces the measuring structure, allowing the acquisition of a target image at the measuring structure through the endoscope's front detection surface. By adjusting the distance between the measuring structure and the positioning plate, image information of the target image at different distances can be better acquired, enabling better detection of the endoscope's field of view and / or depth of field, and other optical performance characteristics. Furthermore, since the positioning plate can rotate under the action of the angle adjustment structure to adjust the angle, the positioning plate can be used for rigid endoscopes that are inclined to the front detection surface, as well as for flexible endoscopes that are flat to the front detection surface. Therefore, this endoscope optical performance testing device is applicable to both rigid and flexible endoscopes, and has a wider testing range. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0024] Figure 1 A schematic diagram of an embodiment of an endoscope optical performance testing device provided by this utility model;
[0025] Figure 2 for Figure 1An exploded structural diagram of the endoscope optical performance testing device described herein;
[0026] Figure 3 for Figure 1 Another exploded view of the endoscope optical performance testing device described herein;
[0027] Figure 4 for Figure 1 A schematic diagram of the structure of the endoscope optical performance testing device (for flexible endoscopes) described above during testing;
[0028] Figure 5 for Figure 1 A schematic diagram of the structure of the endoscope optical performance testing device (for rigid endoscopes) described herein.
[0029] Explanation of icon numbers:
[0030] 100-Endoscope optical performance testing device; 1-Base plate; 11-Rotation hole; 12-Guide groove; 2-Angle adjustment structure; 21-Angle adjustment rod; 22-Protrusion; 23-Second slider; 3-Positioning structure; 31-Positioning plate; 4-Measuring structure; 41-Measuring block; 411-First slider; 412-Second slide rail; 42-Measuring box; 421-First slide rail.
[0031] The realization of the purpose, functional characteristics and excellent effects of this utility model will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation
[0032] 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.
[0033] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0035] This utility model provides an endoscope optical performance testing device 100. For details, please refer to... Figures 1 to 2 In this embodiment, the endoscope optical performance testing device 100 includes a base plate 1, an angle adjustment structure 2, a positioning structure 3, and a measuring structure 4. The angle adjustment structure 2 is rotatably mounted on the base plate 1. The positioning structure 3 is adapted for fixing the endoscope thereon, and includes a positioning plate 31 disposed on the angle adjustment structure 2. The positioning plate 31 can rotate with the angle adjustment structure 2 so that it can rotate to fit against the front detection surface of the endoscope. The measuring structure 4 is movably mounted on the angle adjustment structure 2 and is spaced relative to the positioning plate 31. The measuring structure 4 has a travel distance that moves towards and away from the positioning plate 31 to adjust the distance between the measuring structure 4 and the front detection surface of the endoscope located on the positioning plate 31.
[0036] In this embodiment, the positioning structure 3 is adapted to allow an endoscope to be mounted and fixed thereon, so that after the endoscope is fixed, the front detection surface of the endoscope can be fitted against the positioning plate 31, thereby fixing the front detection surface of the endoscope. By rotating the angle adjustment structure 2 relative to the base plate 1, the positioning plate 31 is driven to rotate as well, allowing the positioning plate 31 to rotate until it is in contact with the front detection surface of the endoscope, thus fixing the position of the front detection surface. Furthermore, the front detection surface of the endoscope is opposite to the measurement structure 4. The target image at the measurement structure 4 is obtained through the front detection surface of the endoscope. Moreover, by adjusting the distance between the measurement structure 4 and the positioning plate 31, image information of the target image at different distances can be better obtained, and the optical performance of the endoscope, such as field of view and / or depth of field, can be better detected. Furthermore, since the positioning plate 31 can rotate under the drive of the angle adjustment structure 2 to adjust the angle, the positioning plate 31 can be used for rigid endoscopes that are inclined to the front detection surface, as well as for flexible endoscopes that are planar to the front detection surface. Therefore, the endoscope optical performance testing device 100 is applicable to both rigid and flexible endoscopes, and has a wider testing range.
[0037] The endoscope optical performance testing device 100, hereinafter referred to as the testing fixture 100, is not specifically limited in shape and size. For example, the cross-section of the substrate 1 may be circular, square, or irregularly shaped, and the substrate 1 may be flat, block-shaped, or a support structure formed by overlapping tubular and plate-shaped components. Preferably, the substrate 1 is flat to facilitate fixed installation on the testing platform, thereby ensuring the stability of the entire testing fixture 100.
[0038] The substrate 1 has a first plane, which is positioned upwards when the endoscope optical performance testing device 100 is operating normally. Both the angle adjustment structure 2 and the positioning structure 3 are located on the first plane. Figure 1 and Figure 4As shown, the angle adjustment structure 2 includes an angle adjustment rod 21, which is elongated and extends along a first plane. The angle adjustment rod 21 has a first end and a second end that are opposite each other along its length. The first end of the angle adjustment rod 21 is rotatably connected to the substrate 1 and can rotate along the first plane. The positioning plate 31 is located at the first end of the angle adjustment rod 21, and the measuring structure 4 can reciprocate along the length of the angle adjustment rod 21. By rotating the angle adjustment rod 21, the positioning plate 31 is rotated, thereby adjusting its orientation. This allows the positioning plate 31 to better fit the front detection surface of the endoscope, ensuring that the target image at the measuring structure 4 can be better detected by the front detection surface and enter the endoscope, making the detection of the endoscope's optical performance more reliable and accurate.
[0039] The angle adjustment rod 21 rotates on the first plane of the substrate 1. It is understood that there are various ways to rotatably connect the angle adjustment rod 21 to the substrate 1. For example, the angle adjustment rod 21 can be rotatably connected to the substrate 1 via a bearing to ensure smooth rotation. Alternatively, one of the angle adjustment rod 21 and the substrate 1 may have a rotating cam, and the other may have a rotating hole 11 rotatably connected to the rotating cam. The rotating cam is rotatably inserted into the rotating hole 11, allowing the angle adjustment rod 21 to rotate relative to the substrate 1. Alternatively, the angle adjustment rod 21 may have a first through hole, and the substrate 1 may have a second through hole opposite to the first through hole. The test fixture 100 also includes a connecting shaft, which is inserted into the first and second through holes to rotatably connect the angle adjustment rod 21 and the substrate 1.
[0040] Preferably, such as Figure 3 As shown, a protrusion 22 is provided at the bottom of the first end of the angle adjustment rod 21, and the protrusion 22 is generally cylindrical. The rotating hole 11 is provided on the substrate 1, and the protrusion 22 is rotatably disposed in the rotating hole 11, thereby rotatably connecting the angle adjustment rod 21 and the substrate 1. The structure is simple, easy to manufacture, and has a lower cost.
[0041] Furthermore, the positioning plate 31 has a positioning surface perpendicular to the length direction of the angle adjustment rod 21. This positioning surface faces the measuring structure 4 and is planar. The positioning structure 3 also includes a positioning seat (not shown in the figures), which is disposed on the base plate 1 and close to the positioning plate 31. The positioning seat is adapted to fix the endoscope body thereon, so that the endoscope's front detection surface is in contact with the positioning surface. This allows the endoscope's front detection surface to be better fixed to the positioning surface via the positioning plate 31 when the endoscope is fixed to the positioning seat, resulting in a better orientation of the front detection surface towards the measuring structure 4 and more stable fixation, thus ensuring the stability of the detection.
[0042] Furthermore, a through hole is provided on the side of the positioning seat facing the angle adjustment rod 21. The through hole is suitable for exposing the front detection surface of the endoscope. The front detection surface will not be obstructed, and the target image at the measurement structure 4 can be better obtained, so that the endoscope obtains optical image information more accurately, and the test results are also more accurate.
[0043] Among them, such as Figure 4 As shown, when the endoscope's front detection surface is planar, the center line extending along the length of the angle adjustment rod 21 is coaxial or parallel to the center line of the through hole. For example, when the endoscope is a flexible endoscope, the front detection surface is generally planar. Here, "planar" means that the plane containing the front detection surface is perpendicular to the axis of its front insertion tube. When the endoscope is fixed on the positioning seat, the endoscope's front insertion tube extends along the left-right direction of the base plate 1. At this time, the endoscope's front detection surface faces the left side of the base plate 1, and the angle adjustment rod 21 also extends along the left-right direction of the base plate 1 so that it can be aligned with the positioning seat. Only the position of the measuring structure 4 on the angle adjustment rod 21 needs to be adjusted to obtain image information of the measuring structure 4 at different positions on the angle adjustment rod 21, thereby determining the endoscope's depth of field and / or color reproduction, etc.
[0044] like Figure 5As shown, when the endoscope's front detection surface is angled, the center line of the angle adjustment rod 21 extending along its length is angled with the center line of the through hole. For example, when the endoscope is a rigid endoscope, the front detection surface is generally angled to provide a wider detection field of view. Here, "angled front surface" means that the plane containing the front detection surface intersects the axis of the front insertion tube. When the endoscope is fixed to the positioning base, the front insertion tube extends along the left-right direction of the substrate 1. In this case, after the endoscope is fixed to the positioning base, the front surface faces the left side of the substrate 1 and is tilted to one side. Therefore, the angle adjustment rod 21 needs to be rotated to adjust the angle of the positioning surface so that it is parallel or flush with the front detection surface of the endoscope. This ensures that the measuring structure 4 is directly opposite the front detection surface, allowing the endoscope to capture a more complete image of the target, thus improving the accuracy of the test.
[0045] In one embodiment, the measuring structure 4 further has a reciprocating stroke in a direction perpendicular to the angle adjustment rod 21 to adjust the angle between the centerline of the measuring structure 4 and the centerline of the front detection surface of the endoscope, thereby enabling the detection of the range of the endoscope's field of view.
[0046] Preferably, combined with Figure 2 and Figure 3 As shown, the measuring structure 4 includes a measuring block 41 and a measuring box 42 movably mounted on the measuring block 41. The measuring block 41 can reciprocate along the length direction of the angle adjustment rod 21, and the measuring box 42 can reciprocate in a direction perpendicular to the angle adjustment rod 21. By moving the measuring block 41 along the length direction of the angle adjustment rod 21, the measuring box 42 can also move along the length direction of the angle adjustment rod 21, thereby adjusting the distance between the endoscope and the measuring box 42 to obtain images of the target object at different distances, thus detecting the imaging effect of the endoscope at different distances. By adjusting the sliding of the measuring box 42 along the measuring block 41, the imaging effect of the endoscope at different angle ranges with the target object can be measured. Based on multiple imaging effect images, the optical performance of the endoscope can be determined.
[0047] The measuring block 41 is also elongated, and its length direction is perpendicular to the length direction of the angle adjustment rod 21. The measuring box 42 can reciprocate along the length direction of the measuring block 41. This allows the testing fixture 100 to be adapted to the testing needs of both flexible and rigid endoscopes, thus broadening its testing range.
[0048] Moreover, such as Figure 2As shown, one of the measuring block 41 and the measuring box 42 is provided with a first slide rail 421, and the other is provided with a first slider 411 that slides in cooperation with the first slide rail 421. The first slide rail 421 and the first slider 411 cooperate to adjust the angle between the center line of the measuring box 42 and the center line of the front detection surface of the endoscope, and make the measuring box 42 more stable and smooth when moving relative to the measuring block 41, so as to ensure that the image inside the measuring box 42 can be better kept relative to the front detection surface of the endoscope.
[0049] Similarly, a second slide rail 412 is provided on one of the measuring block 41 and the angle adjustment rod 21, and a second slider 23 is provided on the other, which slides in cooperation with the second slide rail 412. The cooperation of the second slide rail 412 and the second slider 23 allows the measuring block 41 to move relative to the angle adjustment rod 21 along its length. This makes the movement of the measuring block 41 relative to the angle adjustment rod 21 smoother, ensuring that the measuring box 42 does not shake during the movement of the measuring block 41, thus better ensuring the stability of the image inside the measuring box 42, and making the image information acquired by the endoscope clearer and more reliable.
[0050] Furthermore, a third slide rail is provided on one of the base plate 1 and the angle adjustment rod 21, and a third slider is provided on the other side to slide in cooperation with the third slide rail. The angle adjustment rod 21 rotates relative to the base plate 1, causing the third slider to slide along the third slide rail. This makes the angle adjustment rod 21 more stable when rotating relative to the base plate 1, preventing it from tipping over and ensuring the stability of the positioning plate 31 and the measuring structure 4.
[0051] Furthermore, combined Figure 4 and Figure 5 As shown, a guide groove 12 is provided on the substrate 1. The guide groove 12 is arranged in an arc shape centered on the rotation point of the angle adjusting rod 21, and the guide groove 12 forms the third slide rail. The third slider is disposed on the angle adjusting rod 21 and protrudes from the side of the angle adjusting rod 21 facing the first plane. The third slider is disposed near the second end of the angle adjusting rod 21, so that the angle adjusting rod 21 can form two connection relationships through the protrusion 22 and the third slider when rotating, making the rotation of the angle adjusting rod 21 more stable.
[0052] The entire endoscope optical performance testing device 100 can be placed on the testing platform via the substrate 1 to ensure the flatness and stability of the entire testing fixture 100. The entire endoscope optical performance testing device 100 has a simple structure, is stable and reliable during operation, and can meet the testing requirements of both rigid and flexible endoscopes, making it more applicable and providing more accurate and reliable test results.
[0053] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. An endoscope optical performance testing device, characterized by, include: substrate; An angle adjustment structure is rotatably mounted on the substrate. A positioning structure is provided for fixing an endoscope thereon. The positioning structure includes a positioning plate disposed on the angle adjustment structure. The positioning plate can rotate together with the angle adjustment structure so that the positioning plate can rotate to fit against the front detection surface of the endoscope. A measuring structure is movably mounted on the angle adjustment structure and spaced relative to the positioning plate. The measuring structure has a travel distance that moves closer to and further away from the positioning plate to adjust the distance between the measuring structure and the front detection surface of the endoscope located on the positioning plate.
2. The endoscope optical performance testing device of claim 1, wherein The substrate has a first plane; The angle adjustment structure includes an angle adjustment rod, which has a first end and a second end that are arranged opposite to each other along its length. The first end of the angle adjustment rod is rotatably connected to the substrate and can rotate along the first plane. The positioning plate is disposed at the first end of the angle adjustment rod, and the measuring structure can reciprocate along the length of the angle adjustment rod.
3. The endoscope optical performance testing device of claim 2, wherein The positioning plate has a positioning surface perpendicular to the length direction of the angle adjustment rod, and the positioning surface is oriented toward the measuring structure; The positioning structure further includes a positioning seat, which is disposed on the base plate and close to the positioning plate. The positioning seat is adapted to fix the endoscope body thereon so that the front detection surface of the endoscope is in contact with the positioning surface.
4. The endoscope optical performance testing device of claim 3, wherein The positioning seat has a through hole on the side facing the angle adjustment rod, and the through hole is suitable for exposing the front detection surface of the endoscope; When the front detection surface of the endoscope is flat, the center line of the angle adjustment rod extending along its length is coaxial or parallel to the center line of the through hole; when the front detection surface of the endoscope is inclined, the center line of the angle adjustment rod extending along its length is at an angle to the center line of the through hole.
5. The endoscope optical performance testing device of claim 2, wherein The measuring structure also has a reciprocating stroke in a direction perpendicular to the angle adjustment rod to adjust the angle between the centerline of the measuring structure and the centerline of the front detection surface of the endoscope.
6. The endoscope optical performance testing device as described in claim 5, characterized in that, The measuring structure includes a measuring block and a measuring box movably mounted on the measuring block. The measuring block can reciprocate along the length of the angle adjusting rod, and the measuring box can reciprocate in a direction perpendicular to the angle adjusting rod.
7. The endoscope optical performance testing device of claim 6, wherein One of the measuring block and the measuring box is provided with a first slide rail, and the other is provided with a first slider that slides in cooperation with the first slide rail. The first slide rail and the first slider cooperate to adjust the angle between the center line of the measuring box and the center line of the front detection surface of the endoscope.
8. The endoscope optical performance testing device as described in claim 6, characterized in that, The measuring block and the angle adjusting rod are provided with a second slide rail, and the other is provided with a second slider that slides in cooperation with the second slide rail. The second slide rail and the second slider cooperate to allow the measuring block to move relative to the angle adjusting rod along its length.
9. The endoscope optical performance testing device as described in claim 2, characterized in that, The substrate and the angle adjustment rod are provided with a third slide rail on one of them, and a third slider is provided on the other of them to slide in cooperation with the third slide rail. The angle adjustment rod rotates relative to the substrate, so that the third slider slides along the third slide rail.
10. The endoscope optical performance testing device as described in claim 9, characterized in that, The substrate is provided with a guide groove, which is arranged in an arc shape centered on the rotation point of the angle adjustment rod, and the guide groove forms the third slide rail; the third slider is disposed on the angle adjustment rod and protrudes from the side of the angle adjustment rod facing the first plane.