A medical endoscope system optical performance detection device

Abstract

The utility model discloses a medical endoscope system optical performance detection device belongs to medical instrument detection technical field, including detection platform and install on detection platform's light box adjusting device and hard mirror adjusting device, the hard mirror adjusting device includes X -axis horizontal displacement platform, Y -axis horizontal displacement platform and Z -axis lifting displacement platform, the top of Z -axis lifting displacement platform is provided with the pitch displacement platform, the upper end of pitch displacement platform is provided with the first adapter plate, and the upper end of first adapter plate is connected endoscope clamping subassembly. The utility model discloses medical endoscope system optical performance detection device can be to the medical endoscope of various shapes and clamped, and clamping fastening, the convenient adjustment.

Description

Technical Field

[0001] This utility model relates to the field of medical device testing technology, and in particular to a device for testing the optical performance of a medical endoscope system. Background Technology

[0002] Rigid endoscopy is used clinically for non-invasive or minimally invasive diagnosis, auxiliary treatment, or non-open endoscopic surgery. The environment for this type of medical treatment is far more complex and dangerous than that for open medical treatment. Careless treatment or surgery can have serious consequences.

[0003] According to the People's Republic of China pharmaceutical industry standard YY 0068.1-2008 "Medical Endoscopes Part 1: Optical Performance and Test Methods," this standard provides detailed requirements for experimental methods regarding field of view and direction of view, image quality, color resolution and color reproduction, illumination, overall luminous efficacy, and light energy transfer efficiency. However, this standard is highly theoretical and lacks practical application. Consequently, the market offers a wide variety of expensive and cumbersome devices for testing the optical performance of rigid endoscope systems, requiring significant time and financial investment. These devices are not suitable for performance testing of endoscopes by medical professionals, especially those without optical expertise.

[0004] Chinese patent CN 222013483 U discloses an optical performance testing device for a rigid medical endoscope system. The disclosed device has a clamping base for holding a rigid endoscope with a third hole for mounting a rigid endoscope with an outer diameter of 10mm. The clamping base also has a fourth hole for mounting a second clamping knob. When the second clamping knob is rotated clockwise, the second gap will decrease, making the rigid endoscope more securely mounted.

[0005] The clamping structure for rigid endoscopes disclosed in the aforementioned patent can only clamp cylindrical endoscopes, and cannot achieve the clamping effect for endoscopes of other shapes. Utility Model Content

[0006] The technical problem to be solved by this utility model is to design an optical performance testing device for medical endoscope systems. This device can clamp medical endoscopes of various shapes, and the clamping is firm and easy to adjust.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a medical endoscope system optical performance testing device, comprising a testing platform and a light box adjustment device and a rigid endoscope adjustment device installed on the testing platform. The light box adjustment device is placed in front of the rigid endoscope adjustment device. The rigid endoscope adjustment device includes an X-axis horizontal displacement platform connected to the testing platform, a Y-axis horizontal displacement platform that can slide on the X-axis horizontal displacement platform, and a Z-axis lifting displacement platform that can slide along the Y-axis horizontal displacement platform.

[0008] The top of the Z-axis lifting displacement stage is provided with a pitch displacement stage, and the upper end of the pitch displacement stage is provided with a first adapter plate, the upper end of the first adapter plate being connected to the endoscope clamping assembly.

[0009] The endoscope clamping assembly includes a rotating shaft connected to a first adapter plate, a endoscope barrel fixing member connected to the top of the rotating shaft, one end of the endoscope barrel fixing member connected to a horizontal adjustment rod, and the other end of the horizontal adjustment rod connected to a rigid endoscope body clamping member.

[0010] Furthermore, a groove is provided on the outer side of the lens barrel fixing component, and a hand-tightening bolt is provided at the top of the groove.

[0011] Furthermore, a silicone plug is provided on the inner side of the rigid lens body clamp.

[0012] Furthermore, the end of the horizontal adjustment rod passes through the lens barrel fixing member and is movably connected to the lens barrel fixing member, and a bolt is provided at the upper end of the lens barrel fixing member for fixing the horizontal adjustment rod.

[0013] Furthermore, the top end of the rotating shaft is movably connected to a lens barrel fixing component, and the lens barrel fixing component has bolts on the opposite side of the groove for fixing the rotating shaft.

[0014] Furthermore, the X-axis horizontal displacement stage includes an X-axis dovetail base and an X-axis slide, the Y-axis horizontal displacement stage includes a Y-axis dovetail base and a Y-axis slide, and the Z-axis lifting displacement stage is slidably connected to the Y-axis horizontal displacement stage through a second adapter plate.

[0015] Furthermore, the lightbox adjustment device includes a rotary displacement stage, a lightbox bracket disposed on the upper end of the rotary displacement stage, a lightbox disposed inside the lightbox bracket, a test card bracket disposed in front of the lightbox, a measuring mark displacement stage disposed parallel to the lightbox and in front of the test card bracket, and a measuring mark bracket connected to the measuring mark displacement stage. The test card is installed in front of the lightbox through the test card bracket; the measuring mark is installed in front of the lightbox through the measuring mark bracket.

[0016] Furthermore, the measuring displacement stage includes a measuring horizontal displacement stage and a measuring vertical displacement stage, and the measuring card bracket is set on the measuring vertical displacement stage.

[0017] Furthermore, the test card holder is provided with a slot, and the test card is placed in the slot. The test card includes one of the following: field of view test card, entrance pupil field of view test card, unit relative distortion test card, and USAF1951 resolution test card.

[0018] Furthermore, the test card 23 is installed on the test card holder 22 by magnetic attraction.

[0019] Beneficial effects: By setting the endoscope clamping assembly to a two-point fixing method, this application can not only clamp and fix the endoscope body by adjusting the horizontal adjustment rod, but also fix the endoscope tube by adjusting the hand-tightening bolt. The two-point fixing method is more suitable for clamping and fixing endoscopes of different shapes.

[0020] The test card holder in this application uses a slot structure, and the test card uses a magnetic structure; the test card can be replaced by inserting / removing it from the slot, and the test card can be replaced by inserting / removing it from the test card holder, making replacement more convenient.

[0021] Meanwhile, both the light box adjustment device and the rigid endoscope adjustment device in this application can achieve fine-tuning and coarse-tuning, which facilitates the adjustment of the position of the endoscope and the test card during the testing process. Attached Figure Description

[0022] Figure 1 This is an overall view of the optical performance testing device for the endoscope system of this utility model.

[0023] Figure 2 This is an overall view of the rigid mirror adjustment device of this utility model.

[0024] Figure 3 This is an overall view of the endoscope clamping assembly of this utility model.

[0025] Figure 4 This is an overall view of the light box adjustment device of this utility model.

[0026] The components are as follows: 1-Testing platform, 2-Rigid mirror adjustment device, 3-Light box adjustment device, 4-X-axis water displacement stage, 5-Y-axis horizontal displacement stage, 6-Second adapter plate, 7-Z-axis lifting displacement stage, 8-Pitch displacement stage, 9-First adapter plate, 10-Rotation axis, 11-Mirror barrel fixing component, 111-Groove, 12-Hand-tightening bolt, 13-Horizontal adjustment rod, 14-Rigid mirror body clamping component, 15-Silicone plug, 16-Rotation displacement stage, 17-Light box bracket, 18-Light box, 19-Test card bracket, 20-Test card, 21-Target displacement stage, 211-Target horizontal displacement stage, 212-Target vertical displacement stage, 22-Target card bracket, 23-Target card. Detailed Implementation

[0027] To enhance understanding of this utility model, it will be described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0028] like Figure 1The diagram shows an optical performance testing device for a medical endoscope system, comprising a testing platform 1 and a light box adjustment device 3 and a rigid endoscope adjustment device 2 mounted on the testing platform 1. The light box adjustment device 3 is positioned in front of the rigid endoscope adjustment device 2. The testing platform 1 has multiple threaded through holes, and the light box adjustment device 3 and the rigid endoscope adjustment device 2 are fixed to the testing platform 1 with bolts. This connection method facilitates the adjustment of the respective positions of the light box adjustment device 3 and the rigid endoscope adjustment device 2.

[0029] like Figure 2 and 3 As shown, the rigid mirror adjustment device 2 includes an X-axis horizontal displacement stage 4 connected to the testing stage 1. Specifically, the X-axis horizontal displacement stage 4 includes an X-axis dovetail base and an X-axis slide. The X-axis horizontal displacement stage 4 can be fixed to the testing stage 1 by means of M5 hexagonal socket bolts.

[0030] The Y-axis horizontal displacement stage 5 is fixedly connected to the X-axis slide of the X-axis horizontal displacement stage 4. Specifically, the Y-axis horizontal displacement stage 5 includes a Y-axis dovetail base and a Y-axis slide. The Y-axis dovetail base and the X-axis slide are fixedly connected by M3 hexagon socket bolts.

[0031] The Y-axis horizontal displacement stage 5 is fixedly connected to the Z-axis lifting displacement stage 7 via the second adapter plate 6 and M3 countersunk bolts on the Y-axis slide.

[0032] The Z-axis lifting stage 7 uses a lifting rod structure, and the lifting rod can be finely adjusted up and down by rotating bolts. The top of the lifting rod is fixed to the pitch stage 8 with M3 countersunk bolts. The first adapter plate 9 is fixedly connected to the upper end of the pitch stage 8, and the endoscope clamping assembly is fixedly connected to the upper end of the first adapter plate 9.

[0033] The endoscope clamping assembly includes a rotating shaft 10 fixedly connected to the first adapter plate 9, a endoscope barrel fixing member 11 connected to the top of the rotating shaft 10, the endoscope barrel fixing member 11 being connected to one end of a horizontal adjustment rod 13, and the other end of the horizontal adjustment rod 13 being fixedly connected to a rigid endoscope body clamping member 14.

[0034] According to a preferred embodiment of the present invention, a groove 111 is provided on the outer side of the lens barrel fixing member 11, and a hand-tightening bolt 12 is provided at the top of the groove 111. Specifically, the groove 111 can be a rectangular groove or a semi-circular or circular groove.

[0035] The end of the horizontal adjustment rod 13 passes through the lens barrel fixing member 11 and is movably connected to the lens barrel fixing member 11. A bolt is provided at the upper end of the lens barrel fixing member 11 to fix the horizontal adjustment rod 13.

[0036] Preferably, the horizontal adjusting rod 13 includes two parallel rods for maintaining the stability of the fastening.

[0037] According to a preferred embodiment of the present invention, the top end of the rotating shaft 10 and the lens barrel fixing member 11, i.e., the lens barrel fixing member 11, can move up and down along the rotating shaft 10. At this time, bolts are provided on the opposite side of the groove 111 of the lens barrel fixing member 11 to fix the rotating shaft 10.

[0038] According to a preferred embodiment of the present invention, a silicone plug 15 is provided on the inner side of the rigid lens body clamp 14.

[0039] According to a preferred embodiment of the present invention, protective foam for the endoscope body is placed inside the endoscope barrel fixing member 11, the horizontal adjusting rod 13 and the rigid endoscope body clamping member 14 to prevent the endoscope body from making hard contact with the endoscope clamping assembly.

[0040] The aforementioned endoscope clamping assembly can be adapted to optical hard lenses of different lengths and diameters by adjusting the horizontal adjustment rod, replacing silicone plugs with different inner diameters, tightening the lens body with hand-tightened bolts, and protecting the lens body with protective foam, thereby completing the optical performance testing of optical hard lenses from different manufacturers and models.

[0041] like Figure 4 As shown, the lightbox adjustment device 3 includes a rotating displacement stage 16, which allows the lightbox adjustment device to rotate 360°. A lightbox bracket 17 is mounted on the upper end of the rotating displacement stage 16, and a lightbox 18 is installed inside the bracket 17. Specifically, the lightbox bracket 17 is constructed of 2020 profile and corner brackets, and is fixed to the rotating displacement stage 16 with M3 screws. The lightbox 18 is a standard transmissive lightbox with a color temperature of 6000-7500K, illuminance uniformity ≥95%, color rendering index ≥95, and dimming range of 0-12000Lux, providing a professional lighting environment for hard mirror evaluation.

[0042] A test card bracket 19 is installed in front of the light box 18, and the test card 20 is installed in front of the light box 18 through the test card bracket 19. Specifically, the test card bracket 19 is made of cold-rolled steel plate with a thickness of 1.5mm. It can be fixed to the light box bracket 17 with M3 countersunk bolts. The test card bracket 19 has a slot structure, and the test card 20 can be replaced by pulling it out. The test card 20 includes one of the following: field of view test card, entrance pupil field of view test card, unit relative distortion test card, and USAF1951 resolution test card.

[0043] The measuring displacement stage 21 is parallel to the light box 18 and is set in front of the test card bracket 19. Specifically, the measuring displacement stage 21 includes a measuring horizontal displacement stage 211 and a measuring vertical displacement stage 212. The measuring card bracket 22 is slidably set on the measuring vertical displacement stage 212, and the measuring card 23 is installed in front of the light box through the measuring card bracket 22.

[0044] According to a preferred embodiment of the present invention, the test mark bracket is made of magnetically pleasing metal material and is fixed to the test mark displacement stage by M3 countersunk bolts; the test mark 23 is made of plastic material containing ferrite permanent magnets, and can carry MTF resolution test cards and illuminance meter photosensitive elements. It is installed on the test mark bracket by magnetic attraction and can be used for performance testing such as resolution and illumination mirror luminous efficacy.

[0045] The aforementioned lightbox adjustment device can not only achieve full-angle rotation and adjustment of the side label card position, but also make it easy to replace the test card and the side label card.

[0046] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A testing device for the optical performance of a medical endoscope system, comprising a testing table (1) and a light box adjustment device (3) and a rigid endoscope adjustment device (2) mounted on the testing table (1), wherein the light box adjustment device (3) is placed in front of the rigid endoscope adjustment device (2), characterized in that, The rigid mirror adjustment device (2) includes an X-axis horizontal displacement stage (4) connected to the detection stage (1), a Y-axis horizontal displacement stage (5) that can slide on the X-axis horizontal displacement stage (4), and a Z-axis lifting displacement stage (7) that can slide along the Y-axis horizontal displacement stage (5). The top of the Z-axis lifting displacement stage (7) is provided with a pitch displacement stage (8), and the upper end of the pitch displacement stage (8) is provided with a first adapter plate (9), and the upper end of the first adapter plate (9) is connected to the endoscope clamping assembly. The endoscope clamping assembly includes a rotating shaft (10) connected to a first adapter plate (9), with a endoscope barrel fixing member (11) connected to the top of the rotating shaft (10), the endoscope barrel fixing member (11) being connected to one end of a horizontal adjustment rod (13), and the other end of the horizontal adjustment rod (13) being connected to a rigid endoscope body clamping member (14).

2. The optical performance testing device for a medical endoscope system according to claim 1, characterized in that, The outer side of the lens barrel fixing component (11) is provided with a groove (111), and a hand-tightening bolt (12) is provided at the top of the groove (111).

3. The optical performance testing device for a medical endoscope system according to claim 1, characterized in that, A silicone plug (15) is provided on the inner side of the rigid lens body clamp (14).

4. The optical performance testing device for a medical endoscope system according to claim 1, characterized in that, The end of the horizontal adjustment rod (13) passes through the lens barrel fixing member (11) and is movably connected to the lens barrel fixing member (11). The upper end of the lens barrel fixing member (11) is provided with bolts for fixing the horizontal adjustment rod (13).

5. The optical performance testing device for a medical endoscope system according to claim 1, characterized in that, The top end of the rotating shaft (10) is movably connected to the lens barrel fixing member (11), and the lens barrel fixing member (11) is provided with bolts on the opposite side of the groove (111) for fixing the rotating shaft (10).

6. The optical performance testing device for a medical endoscope system according to claim 1, characterized in that, The X-axis horizontal displacement stage (4) includes an X-axis dovetail groove base and an X-axis slide, the Y-axis horizontal displacement stage (5) includes a Y-axis dovetail groove base and a Y-axis slide, and the Z-axis lifting displacement stage (7) is slidably connected to the Y-axis horizontal displacement stage (5) through a second adapter plate (6).

7. The optical performance testing device for a medical endoscope system according to claim 1, characterized in that, The light box adjustment device (3) includes a rotary displacement stage (16), a light box bracket (17) set on the upper end of the rotary displacement stage (16), a light box (18) set inside the light box bracket (17), a test card bracket (19) set on the front surface of the light box (18), a measuring mark displacement stage (21) parallel to the light box (18) and set in front of the test card bracket (19), and a measuring mark bracket (22) connected to the measuring mark displacement stage (21). The test card (20) is installed in front of the light box (18) through the test card bracket (19); the measuring mark (23) is installed in front of the light box through the measuring mark bracket (22).

8. The optical performance testing device for a medical endoscope system according to claim 7, characterized in that, The measuring mark displacement stage (21) includes a measuring mark horizontal displacement stage (211) and a measuring mark vertical displacement stage (212), and the measuring mark card bracket (22) is set on the measuring mark vertical displacement stage (212).

9. The optical performance testing device for a medical endoscope system according to claim 7, characterized in that, The test card holder (19) is provided with a slot, and the test card (20) is placed in the slot. The test card (20) includes one of the following: field of view test card, entrance pupil field of view test card, unit relative distortion test card, and USAF1951 resolution test card.

10. The optical performance testing device for a medical endoscope system according to claim 7, characterized in that, The test card (23) is installed on the test card holder (22) by magnetic attraction.

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