A light intensity detection device

Abstract

This invention discloses a light intensity detection device, comprising a detection box and several endoscopic cannulas disposed within the detection box. Each endoscopic cannulas includes an insertion portion and a rigid end. An isolation plate is fixedly connected to the back of the inner cavity of the detection box. This invention relates to the field of endoscopic light intensity detection technology. This light intensity detection device provides a dark detection environment through the detection box, divides the detection box into a movable cavity and a light intensity detection cavity using the isolation plate, and limits the rigid end using a positioning component. Combined with a swing drive component, the insertion portion can be swung during testing, ensuring the similarity between the measurement process and actual use, thus improving detection accuracy. The installation and removal of the endoscopic cannulas are also very convenient. Furthermore, with the cooperation of the isolation plate and the light intensity detection component, light intensity detection of multiple endoscopic cannulas can be performed simultaneously, effectively improving light intensity detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of endoscopic light intensity detection technology, specifically to a light intensity detection device. Background Technology

[0002] A fiber optic endoscope is a medical device that uses a combination of optical fibers and lenses to transmit light and images. It is inserted into the human body through natural orifices or surgical incisions to examine internal tissue structures that are difficult to access. It mainly consists of a light guide plug, a light guide hose, an operating section, an observation section, an insertion section, and a rigid end.

[0003] As equipment is used for an extended period, optical fibers will deteriorate due to aging and breakage, leading to a decrease in light transmission efficiency. As the degree of deterioration deepens, this decrease in light transmission efficiency will have two adverse effects on clinical surgical applications: First, in scenarios involving large cavities or rigid endoscopes where the lesion is far away, insufficient illumination will result in a relatively dark image of the lesion acquired by the camera system, potentially causing blurry images and affecting the surgeon's judgment. Second, if the optical fiber inside the beam breaks, the transmittance decreases, and a large amount of light energy is dissipated within the beam, which may cause a sharp rise in the beam temperature, resulting in safety risks such as combustion.

[0004] Based on the above information, it is evident that detecting the light intensity emitted by the fiber optic endoscope is essential. This effectively reveals the actual performance of the internal optical fibers. Conventional light intensity detection methods often use the light intensity provided by the light source supply connected to the light guide insertion section as a reference, and then measure the light intensity emitted from the rigid end. By comparing the two light intensities, the actual performance of the built-in optical fibers can be determined. However, this method has limitations. The internal environment of the human body is relatively dark, resulting in poor measurement accuracy when measuring the light intensity emitted from the rigid end. Furthermore, the lack of adjustment of the insertion section during testing makes it impossible to guarantee the similarity between the test results and the actual light intensity results during use. Additionally, using a single fiber optic endoscope for individual testing is inefficient and not conducive to efficient light intensity detection. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a light intensity detection device that solves the problems of poor measurement accuracy, inability to guarantee the similarity between test results and actual light intensity results in conventional light intensity detection methods, and low testing efficiency, which is not conducive to efficient light intensity detection.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a light intensity detection device, comprising a detection box and a plurality of endoscopic cannulas disposed within the detection box. Each endoscopic cannulas includes an insertion portion and a rigid end portion. A partition plate is fixedly connected to the back of the inner cavity of the detection box. A wire-passing groove is reserved between the partition plate and the front side of the inner cavity of the detection box. The partition plate is used to divide the inner cavity of the detection box into a movable cavity and a light intensity detection cavity. A light intensity detection component is fixedly connected inside the light intensity detection cavity. A swing drive assembly is disposed in the movable cavity. The swing drive assembly is used to drive the insertion portion to swing back and forth. The rigid end portion is disposed inside the light intensity detection cavity, and a positioning assembly adapted to the rigid end portion is disposed inside the light intensity detection cavity.

[0009] Several endoscopic cannulas are arranged sequentially from top to bottom, and each endoscopic cannulas has an isolation pad at its bottom.

[0010] The present invention is further configured such that: the light intensity detection component includes a mounting plate, and a plurality of light intensity sensors are embedded on the front side of the mounting plate, the light intensity sensors being used to detect the light intensity emitted by the rigid end;

[0011] Several light intensity sensors are respectively disposed above an isolation pad, and the back of the isolation pad is in sliding contact with the front of the mounting plate.

[0012] The present invention is further configured such that: the swing drive assembly includes a drive motor and a swing plate; the bottom of the swing plate is fixedly connected to a square shell via a plurality of sliders; the output end of the drive motor is fixedly connected to a turntable via a coupling; the top of the turntable is fixedly connected to an eccentric shaft; and the outer surface of the eccentric shaft is used in conjunction with the inner surface of the square shell.

[0013] The present invention is further configured such that: the swing plate is slidably installed at the bottom of the inner cavity of the detection box, and a plurality of sliding grooves are provided at the bottom of the inner cavity of the detection box, the sliding grooves are used in conjunction with the slider, a U-shaped support is fixedly connected to the bottom of the detection box, and the drive motor is fixedly connected to the bottom of the inner cavity of the U-shaped support;

[0014] The square shell is positioned below the testing box.

[0015] The present invention is further configured such that: a plurality of first guide rollers are rotatably mounted on the top of the swing plate via bearings, and the plurality of first guide rollers are alternately distributed front and back, and the plurality of first guide rollers are used in conjunction with the insertion part.

[0016] The present invention is further configured such that: the isolation pad includes an insertion pad portion, a first guide portion, a filling portion, a second guide portion, a third guide portion, and a sealing portion; one side of the insertion pad portion is fixedly connected to one side of the first guide portion; one side of the first guide portion is fixedly connected to one side of the filling portion; one side of the filling portion is fixedly connected to the sealing portion through the second guide portion; and the third guide portion is fixedly connected to the other side of the insertion pad portion.

[0017] The top of the insertion pad has several square holes that are adapted to the first guide roller, and several springs are fixedly connected to the front and rear sides of the top of the insertion pad.

[0018] The filling part is used in conjunction with the wire passage slot.

[0019] The present invention is further configured such that: the positioning component includes two second guide rollers, both of which are rotatably mounted at the bottom of the light intensity detection cavity via bearings;

[0020] Two second guide rollers are respectively disposed on both sides of the second guide portion and are used in conjunction with the rigid end. The sealing portion is disposed between the two second guide rollers and the mounting plate.

[0021] The present invention is further configured such that: two third guide rollers are rotatably mounted at the bottom of the inner cavity of the active cavity via bearings, the two third guide rollers are disposed between the filling part and the insertion pad part, and the first guide part is disposed between the two third guide rollers;

[0022] The insertion part is positioned between the two third guide rollers.

[0023] The invention is further configured such that: the detection box includes a box body and a box cover, the box cover is hinged to one side of the top of the box body, a through groove adapted to the insertion part is opened on one side of the box body, two fourth guide rollers are rotatably installed on one side of the bottom of the inner cavity of the box body through bearings, both of the two fourth guide rollers are located on the other side of the insertion pad, and a third guide part is located between the two fourth guide rollers and passes through the through groove.

[0024] The present invention is further configured such that: a processing module and a display module are fixedly connected to one side of the U-shaped bracket via a connecting plate; the processing module is used to receive measurement data from several light intensity sensors, generate a time-light intensity data curve based on time changes, and then transmit it to the display module for display.

[0025] (III) Beneficial Effects

[0026] This invention provides a light intensity detection device. It has the following beneficial effects:

[0027] (1) The present invention provides a dark testing environment through the testing box, and uses an isolation plate to divide the testing box into an active cavity and a light intensity testing cavity. After the rigid end is limited by the positioning component, the swing drive component can be used to swing the insertion part during the test, ensuring the similarity between the measurement process and the actual use process. While improving the detection accuracy, the installation and removal of the endoscope cannula are very convenient. Furthermore, with the cooperation of the isolation plate and the light intensity detection component, the light intensity of multiple endoscope canns can be detected at one time, which effectively improves the light intensity detection efficiency.

[0028] (2) The present invention avoids the endoscope cannula from being squeezed and worn by the isolation pad and spring, thus ensuring the safety and integrity of the endoscope cannula during the testing process.

[0029] (3) The present invention achieves rapid installation and positioning of the endoscope cannula by cooperating with the first guide roller, the second guide roller, the third guide roller and the fourth guide roller. It ensures that the insertion part can swing back and forth by the first guide roller. After the test is completed, the endoscope cannula can be directly taken up, realizing convenient separation of the endoscope cannula.

[0030] (4) The present invention uses a processing module and a display module to collect light intensity data detected by the light intensity sensor, and generates a time-light intensity data curve according to the time change, and displays the time-light intensity data curve in the display module. The tester can judge the condition of the optical fiber inside the endoscope cannula by the change of the time-light intensity data curve and the actual light intensity of the external light source supply end. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the external structure of the present invention after assembly;

[0032] Figure 2 This is a schematic diagram of the internal structure of the detection box of the present invention;

[0033] Figure 3 This is a schematic diagram showing the connection between the housing, light intensity detection element, and swing plate structure of the present invention;

[0034] Figure 4 This is a schematic diagram showing the connection of the endoscope cannula, the first guide roller, the second guide roller, the third guide roller, the fourth guide roller, and the isolation pad of the present invention.

[0035] Figure 5 This is a schematic diagram of the structure of the isolation pad of the present invention;

[0036] Figure 6 This is a schematic diagram of the swing drive assembly of the present invention.

[0037] In the diagram, 1. Detection box; 2. Endoscope cannula; 3. Insertion section; 4. Rigid end; 5. Isolation plate; 6. Wire guide slot; 7. Movable cavity; 8. Light intensity detection cavity; 9. Light intensity detection component; 10. Swing drive assembly; 11. Positioning assembly; 12. Isolation pad; 13. Mounting plate; 14. Light intensity sensor; 15. Drive motor; 16. Swing plate; 17. Slider; 18. Square shell; 19. Turntable; 20. Eccentric shaft ; 21. Slide groove; 22. U-shaped support; 23. First guide roller; 24. Insertion pad; 25. First guide section; 26. Filling section; 27. Second guide section; 28. Third guide section; 29. ​​Sealing section; 30. Square hole; 31. Spring; 32. Second guide roller; 33. Third guide roller; 34. Box body; 35. Box cover; 36. Through groove; 37. Fourth guide roller; 38. Processing module; 39. Display module. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0039] Please see Figure 1-6 The present invention provides the following two technical solutions:

[0040] Example 1

[0041] A light intensity detection device includes a detection box 1 and a plurality of endoscope tubes 2 disposed in the detection box 1. The endoscope tubes 2 include an insertion part 3 and a rigid end 4.

[0042] As a preferred embodiment, in order to create a dark environment, the detection box 1 includes a box body 34 and a box cover 35. The box cover 35 is hinged to one side of the top of the box body 34. A through groove 36 adapted to the insertion part 3 is provided on one side of the box body 34. Two fourth guide rollers 37 are rotatably installed on one side of the bottom of the inner cavity of the box body 34 through bearings.

[0043] An isolation plate 5 is fixedly connected to the back of the inner cavity of the enclosure 34. A wire-passing groove 6 is reserved between the isolation plate 5 and the front side of the inner cavity of the enclosure 34. The isolation plate 5 is used to divide the inner cavity of the enclosure 34 into an active cavity 7 and a light intensity detection cavity 8. A light intensity detection component 9 is fixedly connected inside the light intensity detection cavity 8. A rigid end 4 is set inside the light intensity detection cavity 8. The light intensity detection component 9 includes a mounting plate 13. Several light intensity sensors 14 are embedded on the front of the mounting plate 13. The light intensity sensors 14 include, but are not limited to, the BH1750 model, and are used to detect light intensity. The light intensity sensors 14 are used to detect the light intensity emitted by the rigid end 4.

[0044] As a preferred embodiment, in order to achieve common light intensity detection of several endoscopic cannulas 2, several endoscopic cannulas 2 are arranged sequentially from top to bottom, and each endoscopic cannulas 2 is provided with an isolation pad 12 at its bottom. Several light intensity sensors 14 are respectively arranged above an isolation pad 12, and the back of the isolation pad 12 slides in contact with the front of the mounting plate 13.

[0045] As a preferred embodiment, in order to ensure the stable placement of the rigid end 4, the interior of the light intensity detection cavity 8 is provided with a positioning component 11 that is compatible with the rigid end 4. The positioning component 11 includes two second guide rollers 32, which are rotatably mounted at the bottom of the inner cavity of the light intensity detection cavity 8 via bearings. The two second guide rollers 32 are used in conjunction with the rigid end 4.

[0046] As a preferred solution, in order to facilitate the judgment of light intensity detection results, a U-shaped support 22 is fixedly connected to the bottom of the detection box 1. A processing module 38 and a display module 39 are fixedly connected to one side of the U-shaped support 22 via a connecting plate. The processing module 38 is an ARM9 series microprocessor, and the display module 39 is an LCD screen. The processing module 38 is used to receive the measurement data from several light intensity sensors 14, generate a time-light intensity data curve based on the time change, and then transmit it to the display module 39 for display.

[0047] In this embodiment, light intensity detection of several endoscopic cannulas 2 can be performed in a dark environment, and the installation and removal of several endoscopic cannulas 2 are very convenient, making them very easy to use.

[0048] Example 2

[0049] This embodiment, as an improvement on the previous embodiment, provides a light intensity detection device, further comprising a swing drive assembly 10 disposed in the movable cavity 7. The swing drive assembly 10 drives the insertion part 3 to swing back and forth. The swing drive assembly 10 includes a drive motor 15 and a swing plate 16. The swing plate 16 is slidably mounted on the bottom of the inner cavity of the detection box 1. The drive motor 15 is electrically connected to an external power source and controlled by a control switch. The drive motor 15 is fixedly connected to the bottom of the inner cavity of the U-shaped support 22. Several first guide rollers 23 are rotatably mounted on the top of the swing plate 16 via bearings, and several first guide rollers 23 are rotatably mounted on the top of the swing plate 16. A guide roller 23 is alternately distributed front and back. Several first guide rollers 23 are used in conjunction with the insertion part 3. The bottom of the swing plate 16 is fixed to a square shell 18 through several sliders 17. Several sliding grooves 21 are opened at the bottom of the inner cavity of the detection box 1. The sliding grooves 21 are used in conjunction with the sliders 17. The square shell 18 is set below the detection box 1. The output end of the drive motor 15 is fixed to a turntable 19 through a coupling. An eccentric shaft 20 is fixed to the top of the turntable 19. The outer surface of the eccentric shaft 20 is used in conjunction with the inner surface of the square shell 18. A U-shaped support 22 is fixed to the bottom of the detection box 1.

[0050] As a preferred embodiment, to achieve effective isolation and protection of the endoscopic cannula 2, the isolation pad 12 includes an insertion pad 24, a first guide 25, a filling part 26, a second guide 27, a third guide 28, and a sealing part 29. One side of the insertion pad 24 is fixedly connected to one side of the first guide 25, and one side of the first guide 25 is fixedly connected to one side of the filling part 26. One side of the filling part 26 is fixedly connected to the sealing part 29 through the second guide 27. The third guide 28 is fixedly connected to the other side of the insertion pad 24. The top of the insertion pad 24 has several square holes 30 that are adapted to the first guide roller 23. Several springs 3 are fixedly connected to both the front and rear sides of the top of the insertion pad 24. 1. The filling part 26 is used in conjunction with the wire passage 6. Two second guide rollers 32 are respectively arranged on both sides of the second guide part 27. The sealing part 29 is arranged between the two second guide rollers 32 and the mounting plate 13. Two third guide rollers 33 are rotatably installed at the bottom of the inner cavity of the movable cavity 7 through bearings. The two third guide rollers 33 are arranged between the filling part 26 and the insertion pad part 24. The first guide part 25 is arranged between the two third guide rollers 33. The insertion part 3 is arranged between the two third guide rollers 33. Two fourth guide rollers 37 are arranged on the other side of the insertion pad part 24. The third guide part 28 is arranged between the two fourth guide rollers 37 and passes through the through groove 36.

[0051] The advantage of Example 2 over Example 1 is that the insertion part 3 can be driven to swing, so as to ensure the similarity between the testing process and the actual use of the endoscope cannula 2, and to ensure the high accuracy of the measurement results.

[0052] In use, open the case cover 35, place an isolation pad 12 into the case 34, and then take out an endoscope cannula 2 that is already connected to the external light source supply, as shown in the attached document. Figure 4 As shown, its rigid end 4 is placed between two second guide rollers 32, and then its insertion part 3 is squeezed between two third guide rollers 33. After passing between several first guide rollers 23, it falls between two fourth guide rollers 37. After falling into the through groove 36, the assembly of one endoscope cannula 2 is completed. Another isolation pad 12 is placed on top of the assembled endoscope cannula 2, as shown in the attached figure. Figure 4 As shown, at this time, the upper isolation pad 12 presses against the lower spring 31 to ensure that no excessive pressure is applied to the endoscope tube 2. Then, take another endoscope tube 2 that has been connected to the external light source supply end and repeat the operation. After installing the four endoscope tubes 2 in sequence, close the box cover 35.

[0053] Start the drive motor 15, drive the turntable 19 to rotate, the turntable 19 drives the eccentric shaft 20 to make the square shell 18 move back and forth. During the process, the square shell 18 drives the slider 17 to slide back and forth in the slide groove 21. The slider 17 drives several first guide rollers 23 to push the insertion part 3 back and forth through the swing plate 16 to simulate the actual use process of the insertion tube.

[0054] During the process, the light intensity sensor 14 collects light intensity data emitted from four points on the rigid end and transmits the light intensity data to the processing module 38. The processing module 38 receives the light intensity data measured by the light intensity sensor 14, generates a time-light intensity data curve based on the time change, and then transmits it to the display module 39 for display. For the light intensity data collected by the four light intensity sensors 14, the display module 39 displays four time-light intensity data curves from top to bottom.

[0055] As an extension, in order to improve the comparison and judgment effect, the light intensity data provided by the corresponding external light source can be added to the time-light intensity data curve to judge the light intensity loss in the endoscope cannula 2. That is, when the light intensity data collected by the light intensity sensor 14 is less than the light intensity data provided by the corresponding external light source, it indicates that there is a loss. The smaller the light intensity data collected by the light intensity sensor 14, the greater the loss.

Claims

1. A light intensity detection device, comprising a detection box (1) and a plurality of endoscopic cannulas (2) arranged in the detection box (1), the endoscopic cannula (2) comprising an insertion part (3) and a hard end part (4), characterized in that: An isolation plate (5) is fixedly connected to the back of the inner cavity of the detection box (1). A wire-passing groove (6) is reserved between the isolation plate (5) and the front side of the inner cavity of the detection box (1). The isolation plate (5) is used to divide the inner cavity of the detection box (1) into an active cavity (7) and a light intensity detection cavity (8). A light intensity detection component (9) is fixedly connected inside the light intensity detection cavity (8). A swing drive assembly (10) is provided in the active cavity (7). The swing drive assembly (10) is used to drive the insertion part (3) to swing back and forth. The rigid end (4) is located inside the light intensity detection cavity (8), and a positioning assembly (11) adapted to the rigid end (4) is provided inside the light intensity detection cavity (8). Several endoscopic cannulas (2) are arranged from top to bottom, and each endoscopic cannulas (2) has an isolation pad (12) at its bottom.

2. The light intensity detection device according to claim 1, characterized in that: The light intensity detection component (9) includes a mounting plate (13), and a plurality of light intensity sensors (14) are embedded on the front side of the mounting plate (13). The light intensity sensors (14) are used to detect the light intensity emitted by the rigid end (4). Several light intensity sensors (14) are respectively disposed above an isolation pad (12), and the back of the isolation pad (12) slides in contact with the front of the mounting plate (13).

3. The light intensity detection device according to claim 2, characterized in that: The swing drive assembly (10) includes a drive motor (15) and a swing plate (16). The bottom of the swing plate (16) is fixed to a square shell (18) via several sliders (17). The output end of the drive motor (15) is fixed to a turntable (19) via a coupling. The top of the turntable (19) is fixed to an eccentric shaft (20). The outer surface of the eccentric shaft (20) is used in conjunction with the inner surface of the square shell (18).

4. The light intensity detection device according to claim 3, characterized in that: The swing plate (16) is slidably installed at the bottom of the inner cavity of the detection box (1), and several sliding grooves (21) are opened at the bottom of the inner cavity of the detection box (1). The sliding grooves (21) are used in conjunction with the slider (17). A U-shaped support (22) is fixedly connected to the bottom of the detection box (1), and the drive motor (15) is fixedly connected to the bottom of the inner cavity of the U-shaped support (22). The square shell (18) is positioned below the detection box (1).

5. The light intensity detection device according to claim 4, characterized in that: The top of the swing plate (16) is rotatably mounted with a number of first guide rollers (23) via bearings, and the number of first guide rollers (23) are alternately distributed front and back, and the number of first guide rollers (23) are used in conjunction with the insertion part (3).

6. The light intensity detection device according to claim 5, characterized in that: The isolation pad (12) includes an insertion pad (24), a first guide (25), a filling part (26), a second guide (27), a third guide (28), and a sealing part (29). One side of the insertion pad (24) is fixedly connected to one side of the first guide (25), one side of the first guide (25) is fixedly connected to one side of the filling part (26), one side of the filling part (26) is fixedly connected to the sealing part (29) through the second guide (27), and the third guide (28) is fixedly connected to the other side of the insertion pad (24). The top of the insertion pad (24) is provided with several square holes (30) that are adapted to the first guide roller (23), and several springs (31) are fixedly connected to the front and rear sides of the top of the insertion pad (24). The filling part (26) is used in conjunction with the wire passage (6).

7. The light intensity detection device according to claim 6, characterized in that: The positioning component (11) includes two second guide rollers (32), both of which are rotatably mounted at the bottom of the light intensity detection cavity (8) via bearings; Two second guide rollers (32) are respectively disposed on both sides of the second guide portion (27) and are used in conjunction with the rigid end (4). The sealing portion (29) is disposed between the two second guide rollers (32) and the mounting plate (13).

8. The light intensity detection device according to claim 6, characterized in that: Two third guide rollers (33) are rotatably mounted at the bottom of the inner cavity of the active cavity (7) via bearings. The two third guide rollers (33) are disposed between the filling part (26) and the insertion pad part (24), and the first guide part (25) is disposed between the two third guide rollers (33). The insertion part (3) is disposed between two third guide rollers (33).

9. A light intensity detection device according to claim 6, characterized in that: The detection box (1) includes a box body (34) and a box cover (35). The box cover (35) is hinged to one side of the top of the box body (34). A through groove (36) adapted to the insertion part (3) is opened on one side of the box body (34). Two fourth guide rollers (37) are rotatably installed on one side of the bottom of the inner cavity of the box body (34) through a bearing. Both fourth guide rollers (37) are provided on the other side of the insertion pad part (24). A third guide part (28) is provided between the two fourth guide rollers (37) and passes through the through groove (36).

10. A light intensity detection device according to claim 6, characterized in that: One side of the U-shaped bracket (22) is fixedly connected to a processing module (38) and a display module (39) via a connecting plate. The processing module (38) is used to receive measurement data from several light intensity sensors (14), generate a time-light intensity data curve based on time changes, and then transmit it to the display module (39) for display.

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