Device for testing illumination uniformity of cold light source of medical endoscope

Abstract

The utility model relates to a medical endoscope cold light source illumination uniformity testing device, which comprises luminous flux testing equipment, a medical endoscope cold light source, a supporting clamp, a positioning clamp, a standard single optical fiber, a luminous flux sensor and a computer, the standard single optical fiber is inserted in a light outlet hole of the medical endoscope cold light source, a supporting clamp and a positioning clamp are sequentially installed on the standard single optical fiber, the tail end of the standard single optical fiber is connected with a luminous flux sensor, the luminous flux sensor transmits measured luminous flux to luminous flux testing equipment through a signal line, and the luminous flux testing equipment is connected with a computer through a USB-to-232 line. And displaying the test operation and the analysis result at the computer end. The device has the advantages of simple and reasonable structure, convenience in installation and use and the like.

Description

Technical Field

[0001] This utility model belongs to the field of optical performance testing of medical devices, and relates to a device for testing the uniformity of illumination of cold light source in medical endoscopes. Background Technology

[0002] Medical endoscopic cold light sources are medical devices composed of high-quality LED light sources and fiber optic transmission systems. They are primarily used for medical endoscopic examinations and surgeries, offering advantages such as low heat generation, long lifespan, brighter and more durable light, greater reliability, and more consistent light emission. Other advantages include the elimination of the need for active fan cooling, the absence of heat generation from the fiber optic light-emitting surface, and the use of environmentally friendly LEDs. This cold light source features high brightness, low heat generation, low power consumption, safety, and environmental friendliness. It provides a pure, stable, and clean light source, allowing doctors to clearly observe the examined area during procedures. Furthermore, it offers convenient functions such as adjustable brightness, color temperature, and spot size. The applications of medical endoscopic cold light sources are very wide-ranging, including gastrointestinal endoscopes, bronchoscopes, laparoscopes, arthroscopes, gynecological endoscopes, and dental endoscopes. It improves the accuracy and safety of medical diagnosis and surgery, while also providing doctors with a better operating experience. Regarding the illumination uniformity of cold light sources for medical endoscopes, the standard YY 1081-2011 "Cold Light Source for Endoscope Functional Supply Devices" requires the following: Manufacturers should provide a nominal value for the illumination uniformity of cold light sources for rigid endoscopes at the reference window, and the measured value should not exceed 1.05 times the nominal value. Currently, there are many testing products on the market, but their practicality is limited, making them unsuitable for non-professional operators in medical institutions to regularly monitor the illumination uniformity of cold light sources in medical endoscope systems.

[0003] To address this issue, a testing device for the uniformity of illumination from a cold light source in a medical endoscope was designed to overcome the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a medical endoscope cold light source illumination uniformity testing device with a simple and reasonable structure, easy operation, and convenient use.

[0005] This utility model is achieved through the following technical solution: a medical endoscope cold light source illumination uniformity testing device, which includes a luminous flux testing device, a medical endoscope cold light source, a support clamp, a positioning clamp, a standard single optical fiber, a luminous flux sensor, and a computer. The medical endoscope cold light source is installed on the upper surface of the luminous flux testing device. The standard single optical fiber is inserted into the light outlet of the medical endoscope cold light source. The support clamp and the positioning clamp are sequentially installed on the standard single optical fiber, and a luminous flux sensor is connected to the end of the fiber. The luminous flux sensor transmits the measured luminous flux to the luminous flux testing device through a signal line. The luminous flux testing device is connected to the computer through a USB to 232 cable, and the test operation and analysis results are displayed on the computer.

[0006] Preferably, the endoscope cold light source consists of an endoscope cold light source main unit and a fiber guide beam, wherein the fiber guide beam is installed inside the endoscope cold light source main unit, one end of which is connected to the endoscope. A first hole is opened on the endoscope cold light source main unit as a guide hole, and a second hole is opened in the first hole for installing and fitting a standard single optical fiber.

[0007] Preferably, a support clamp is fitted onto the standard single optical fiber. The support clamp consists of a support base and a support frame. The support frame is made of magnetic material and has a third hole in its middle position for installing the standard single optical fiber. A sixth hole is formed around the third hole.

[0008] Preferably, the support clamp is used in conjunction with the positioning clamp, which is made of magnetic material. A fourth hole is provided at the center of the positioning clamp for installing a standard single optical fiber, and a fifth hole is provided at the top. A first protrusion is also provided above the fourth hole, which cooperates with the seventh hole on the support clamp. The positioning clamp is magnetically attracted to the side of the first protrusion on the support clamp with the side of the sixth hole on the support clamp.

[0009] Preferably, the light flux sensor has a tenth hole with an internal thread, which can be connected to a standard single optical fiber to transmit the measured light flux to a light flux testing device via a signal line for analysis of the light flux value.

[0010] Preferably, the standard single optical fiber includes a centrally apertured standard single optical fiber, an inner ring apertured standard single optical fiber, and an outer ring apertured standard single optical fiber. The centrally apertured standard single optical fiber has a diameter of 5mm, a seventh hole with a minimum aperture diameter of 0.55mm at its center, a second boss, and external threads for tightening and fixing with the luminous flux sensor. The inner ring apertured standard single optical fiber has a diameter of 5mm, an eighth hole with a diameter of 2.3mm ± 0.05mm and a minimum aperture diameter of 0.55mm in its inner ring, a third boss, and external threads for tightening and fixing with the luminous flux sensor. The outer ring apertured standard single optical fiber has a diameter of 5mm, a ninth hole with a diameter of 4.6mm ± 0.05mm and a minimum aperture diameter of 0.55mm in its outer ring, a fourth boss, and external threads for tightening and fixing with the luminous flux sensor.

[0011] The beneficial effects of this utility model are as follows:

[0012] The medical endoscope cold light source illumination uniformity testing device designed in this utility model has a simple and reasonable overall structure, is practical and convenient, and can achieve the following: (1) to realize the illumination uniformity test and calibration of the cold light source of the medical endoscope system in medical institutions; (2) to be used for the comparison of the time stability of the same equipment; (3) to be used for the test comparison of the same equipment by different personnel; (4) to be used for the performance comparison of different brands and specifications of medical institutions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the cold light source for the endoscope used in traditional Chinese medicine according to this utility model.

[0015] Figure 3 This is a schematic diagram of the support clamp in this utility model.

[0016] Figure 4 This is a schematic diagram of the positioning fixture in this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of the standard single optical fiber with a central opening in this utility model.

[0018] Figure 6 This is a schematic diagram of the structure of the standard single optical fiber with an inner ring opening in this utility model.

[0019] Figure 7 This is a schematic diagram of the structure of the standard single optical fiber with an outer ring opening in this utility model.

[0020] Figure 8This is a schematic diagram of the light flux sensor in this utility model. Detailed Implementation

[0021] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1 As shown, a medical endoscope cold light source illumination uniformity testing device includes a luminous flux testing device 1, a medical endoscope cold light source 2, a support clamp 3, a positioning clamp 4, a standard single optical fiber, a luminous flux sensor 8, and a computer 9. The medical endoscope cold light source 2 is mounted on the upper surface of the luminous flux testing device 1. The standard single optical fiber (with a central opening, an inner ring opening, and an outer ring opening) is inserted into the light outlet of the medical endoscope cold light source. The support clamp and the positioning clamp are sequentially mounted on the standard single optical fiber, and the luminous flux sensor 8 is connected to the end of the fiber. The luminous flux sensor 8 transmits the measured luminous flux to the luminous flux testing device 1 through a signal line. The luminous flux testing device 1 is connected to the computer via a USB to 232 cable, and the test operation and analysis results are displayed on the computer.

[0024] The support clamp in this invention is used to keep the standard single optical fiber (center opening, inner ring opening, outer ring opening) concentric with the light output hole of the cold light source of the medical endoscope. The positioning clamp is used to measure the luminous flux at 8 positions of the inner ring of the standard single optical fiber with the inner ring opening and at 8 positions of the outer ring of the standard single optical fiber with the outer ring opening. The luminous flux sensor is spirally connected to the standard single optical fiber with the center opening, the inner ring opening, and the outer ring opening in sequence. The measured luminous flux is transmitted to the luminous flux testing equipment through a signal line to analyze the luminous flux values ​​at 17 points, and then to analyze the illumination uniformity. The luminous flux testing equipment is connected to a computer via a USB to 232 cable, and the test operation and analysis results are displayed on the computer.

[0025] The luminous flux testing device 1 of this invention is an instrument for measuring luminous flux, displayed in lumens (lm). When luminous flux needs to be measured, the test sample is placed on the other end of a radiation source with known characteristics. By adjusting the instrument, the test sample is subjected to radiation of the same power density, which is then received by the luminous flux detector. The luminous flux detector then measures the illuminance value and calculates the luminous flux emitted by the light source per unit time. The measurement range and sensitivity depend on the type of receiving element and the design of the detector.

[0026] like Figure 2 As shown, the endoscope cold light source 2 consists of an endoscope cold light source main unit and a fiber guide beam. The fiber guide beam is installed inside the endoscope cold light source main unit, and one end of it is connected to the endoscope. A first hole 21 is provided on the endoscope cold light source main unit as a guide hole. The hole diameter is preferably 10mm. A second hole 22 is provided in the first hole for installing and fitting a standard single optical fiber.

[0027] The endoscope cold light source in this utility model generally consists of a medical endoscope cold light source main unit, a fiber optic beam, a spare bulb, and a power cord. It has a light outlet and is connected to the endoscope through the beam, and is used as an illumination source for the endoscope and as medical auxiliary lighting.

[0028] like Figure 3 As shown, a support clamp 3 is fitted onto the standard single optical fiber. The support clamp 3 consists of a support base and a support frame, wherein the support frame is made of magnetic material and has a third hole 31 in its middle position for mounting the standard single optical fiber. A ring of sixth holes 32 is formed around the third hole 31. Preferably, there are eight sixth holes 32, which are evenly distributed on the support clamp along a 360-degree circumferential direction.

[0029] like Figure 4 As shown, the support clamp 3 is used in conjunction with the positioning clamp 4. The positioning clamp 4 is made of magnetic material. A fourth hole 41 is provided at the center of the positioning clamp 4 for installing a standard single optical fiber. A fifth hole 42 is provided at the top of the positioning clamp 4. A first protrusion 43 is also provided above the fourth hole 41, which cooperates with the seventh hole 32 provided on the support clamp 3. The positioning clamp 4 is magnetically attracted to the side of the first protrusion 43 and the side of the support clamp 3 with the sixth hole 32.

[0030] The positioning fixture and support fixture in this utility model are used together for measuring the optical flux at one position of a standard single fiber with a central opening, eight positions of the inner ring of a standard single fiber with an inner ring opening, and eight positions of the outer ring of a standard single fiber with an outer ring opening. The axial outer surface is designed with a frosted finish to increase friction during rotation.

[0031] like Figure 5-7As shown, the standard single optical fiber includes a centrally apertured standard single optical fiber 5, an inner ring apertured standard single optical fiber 6, and an outer ring apertured standard single optical fiber 7. The centrally apertured standard single optical fiber 5 has a diameter of 5mm and a seventh hole 51 at its center. The hole diameter is not less than 0.55mm, and it has a second boss 52 with external threads for tightening and fixing with the light flux sensor 8. The inner ring apertured standard single optical fiber 6 preferably has a diameter of 5mm and an eighth hole 61 in its inner ring. The ring diameter is 2.3mm ± 0.05mm, the aperture value is not less than 0.55mm, and a third boss 62 with external threads is provided for tightening and fixing with the light flux sensor 8. The outer ring has a standard single optical fiber 7 with a diameter of 5mm. The outer ring of the optical fiber has a ninth hole 71 with a diameter of 4.6mm ± 0.05mm and an aperture value of not less than 0.55mm. A fourth boss 72 with external threads is provided for tightening and fixing with the light flux sensor 8.

[0032] like Figure 8 As shown, the light flux sensor 8 has a tenth hole 81 with an internal thread inside, which can be connected to a standard single optical fiber to transmit the measured light flux to the light flux testing device 1 through the signal line 82 to analyze the light flux value.

[0033] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A testing device for the uniformity of illumination of a medical endoscope cold light source, comprising a luminous flux testing device, a medical endoscope cold light source, a support clamp, a positioning clamp, a standard single optical fiber, a luminous flux sensor, and a computer, characterized in that: The medical endoscope cold light source is installed on the upper surface of the light flux testing equipment. A standard single optical fiber is inserted into the light output port of the medical endoscope cold light source. A support clamp and a positioning clamp are installed sequentially on the standard single optical fiber. A light flux sensor is connected to the end of the optical fiber. The light flux sensor transmits the measured light flux to the light flux testing equipment through a signal line. The light flux testing equipment is connected to a computer through a USB to 232 cable, and the test operation and analysis results are displayed on the computer.

2. The medical endoscope cold light source illumination uniformity testing device according to claim 1, characterized in that: The endoscope cold light source consists of an endoscope cold light source main unit and a fiber guide beam. The fiber guide beam is installed inside the endoscope cold light source main unit, with one end connected to the endoscope. A first hole is opened on the endoscope cold light source main unit as a guide hole, and a second hole is opened inside the first hole for installing and fitting a standard single optical fiber.

3. The medical endoscope cold light source illumination uniformity testing device according to claim 2, characterized in that: The standard single optical fiber is fitted with a support clamp, which consists of a support base and a support frame. The support frame is made of magnetic material and has a third hole in the middle for installing the standard single optical fiber. A sixth hole is formed around the third hole.

4. The medical endoscope cold light source illumination uniformity testing device according to claim 3, characterized in that: The support clamp is used in conjunction with the positioning clamp. The positioning clamp is made of magnetic material and has a fourth hole at the center for installing a standard single optical fiber. A fifth hole is opened at the top of the positioning clamp. A first protrusion is also opened above the fourth hole, which cooperates with the seventh hole on the support clamp. The positioning clamp is magnetically attracted to the side of the first protrusion on the support clamp with the sixth hole on the side.

5. The medical endoscope cold light source illumination uniformity testing device according to claim 1, characterized in that: The optical flux sensor has a tenth hole with an internal thread, which can be connected to a standard single optical fiber to transmit the measured optical flux to the optical flux testing equipment through a signal line for analysis of the optical flux value.

6. The medical endoscope cold light source illumination uniformity testing device according to claim 5, characterized in that: The standard single optical fiber includes a centrally apertured standard single optical fiber, an inner ring apertured standard single optical fiber, and an outer ring apertured standard single optical fiber. The centrally apertured standard single optical fiber has a diameter of 5mm, a seventh hole with a minimum aperture diameter of 0.55mm at its center, a second boss, and external threads for tightening and fixing with a light flux sensor. The inner ring apertured standard single optical fiber has a diameter of 5mm, an eighth hole with a diameter of 2.3mm ± 0.05mm and a minimum aperture diameter of 0.55mm in its inner ring, a third boss, and external threads for tightening and fixing with a light flux sensor. The outer ring apertured standard single optical fiber has a diameter of 5mm, a ninth hole with a diameter of 4.6mm ± 0.05mm and a minimum aperture diameter of 0.55mm in its outer ring, a fourth boss, and external threads for tightening and fixing with a light flux sensor.

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