Light source switching device for secreta detection

Abstract

The light source switching device comprises an installation bottom plate, a bright field light source hole and a main installation frame, a light source switching support is rotationally connected between the top of the installation bottom plate and the main installation frame, a motor is installed at the top end of the installation bottom plate, LED installation bases are installed at the two ends of the light source switching support, and the light source switching support is provided with a light source. The light source switching support is provided with a UV wave band light source hole and a B wave band light source hole, and the UV wave band light source hole and the B wave band light source hole alternately rotate to the position above the bright field light source hole. Through cooperative use of the light source switching support and the motor, the UV wave band light source hole and the B wave band light source hole can be rapidly and accurately switched to the position above the bright field light source hole, operation is easy and convenient, only the light source switching support needs to be controlled to rotate and shift, conversion is accurate and flexible, various detection requirements can be met, the comprehensiveness and accuracy of detection are improved, and the detection efficiency is improved. And the application effect and the popularization range of the instrument in clinical diagnosis are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical testing technology, and in particular to a light source switching device for secretion detection. Background Technology

[0002] In the field of obstetrics and gynecology clinical diagnosis, vaginal secretion testing is an extremely important examination method, playing a crucial role in diagnosing infections, inflammations, and other diseases of the female reproductive system. Traditional vaginal secretion testing mainly relies on manual microscopic examination, where medical staff manually prepare smears and observe cell morphology, microbial species, and other indicators under a microscope.

[0003] With the development of technology, automated testing technology has gradually emerged and been applied in the field of medical testing. In the detection of vaginal secretions, automated testing and analysis instruments have been developed. However, some existing automated vaginal secretion testing and analysis instruments still have shortcomings in their light source systems. Some instruments are equipped with only a single light source or the light source switching is not precise and flexible enough to meet various testing needs. For example, when performing fluorescence detection of pathogens in vaginal secretions and bright-field observation of cell morphology, different wavelength light sources are required, and the ability to switch between them quickly and accurately is essential. Some traditional instruments struggle to achieve this, affecting the comprehensiveness and accuracy of the detection and limiting the instrument's application and scope in clinical diagnosis. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a light source switching device for secretion detection, which can solve the problem that some instruments are only equipped with a single light source or the light source switching is not precise and flexible enough, and cannot meet multiple detection needs.

[0006] To achieve the above objectives, this utility model proposes a light source switching device for secretion detection, including a mounting base, a bright field light source hole, and a main mounting frame. A light source switching support is rotatably connected between the top of the mounting base and the main mounting frame. A motor is mounted on the top of the mounting base, and LED mounting seats are mounted on both ends of the light source switching support. The light source switching support is provided with a UV band light source hole and a B band light source hole. The UV band light source hole and the B band light source hole rotate alternately to be above the bright field light source hole. A rotating shaft is mounted on the output end of the motor, and the rotating shaft is rotatably connected to the inner wall of the main mounting frame. The light source switching support is mounted on the bottom end of the main mounting frame. The two LED mounting seats correspond to the positions of the UV band light source hole and the B band light source hole, respectively, and each of the two LED mounting seats contains an LED light source.

[0007] This invention relates to a light source switching device for secretion detection. Through the coordinated use of a light source switching support and a motor, the UV band light source aperture and the B band light source aperture can be quickly and accurately switched to the position above the bright field light source aperture. The operation is simple and convenient, requiring only the rotation and repositioning of the light source switching support. The switching is precise and flexible, meeting various detection needs and improving the comprehensiveness and accuracy of the detection. This facilitates the application and promotion of the instrument in clinical diagnosis. It also reduces the need for manual intervention, and the automated light source switching improves detection efficiency and reduces detection time.

[0008] In addition, the light source switching device for secretion detection proposed above according to this utility model may also have the following additional technical features:

[0009] Specifically, a motor support base is provided on the outside of the motor, the motor support base is installed on the top of the mounting base plate, and a bearing and a connecting bushing are installed between the rotating shaft and the motor support base.

[0010] Specifically, the light source switching support is equipped with two dichroic mirrors and two mirror pressure plates, and the two dichroic mirrors correspond to the positions of the UV band light source hole and the B band light source hole, respectively.

[0011] Specifically, the light source switching support is provided with four excitation filters, and the four excitation filters are installed inside the light source switching support through corresponding filter retaining rings.

[0012] Specifically, a limiting mechanism is provided on the mounting base plate. The limiting mechanism includes two limiting photoelectric switches and two photoelectric switch baffles. The two limiting photoelectric switches are installed on the top of the light source switching support, and the two photoelectric switch baffles are respectively installed on the corresponding side of the motor support. The limiting photoelectric switches and the photoelectric switch baffles are electrically connected.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0016] Figure 2 This is a top view of the overall structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0018] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point BB.

[0019] As shown in the figure:

[0020] 1. Mounting base plate; 11. Bright field light source hole; 12. Main mounting bracket; 2. Light source switching support; 21. UV band light source hole; 22. B band light source hole; 3. Motor; 31. Rotating shaft; 32. Motor support; 33. Bearing; 34. Connecting bushing; 4. LED mounting base; 41. LED light source; 5. Dichroic mirror; 51. Mirror pressure plate; 6. Excitation filter; 61. Filter pressure ring; 7. Limiting mechanism; 71. Limiting photoelectric switch; 72. Photoelectric switch baffle. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0022] The following description, in conjunction with the accompanying drawings, describes a light source switching device for secretion detection according to an embodiment of the present invention.

[0023] like Figures 1-4 As shown, a light source switching device for secretion detection according to an embodiment of the present invention may include a mounting base plate 1, a bright field light source hole 11 and a main mounting frame 12. A light source switching support 2 is rotatably connected between the top of the mounting base plate 1 and the main mounting frame 12. A motor 3 is installed at the top of the mounting base plate 1, and LED mounting bases 4 are installed at both ends of the light source switching support 2.

[0024] The light source switching support 2 is provided with a UV band light source hole 21 and a B band light source hole 22. The UV band light source hole 21 and the B band light source hole 22 rotate alternately to be above the bright field light source hole 11.

[0025] It should be noted that the UV band light source aperture 21 and the B band light source aperture 22 described in this embodiment are symmetrically distributed on the light source switching support 2.

[0026] Among them, the output end of the motor 3 is equipped with a rotating shaft 31, which is rotatably connected to the inner wall of the main mounting frame 12, and the light source switching support 2 is installed at the bottom of the main mounting frame 12.

[0027] It should be noted that the rotating shaft 31 described in this embodiment drives the light source switching support 2 to rotate via the main mounting bracket 12.

[0028] Among them, the two LED mounting bases 4 correspond to the positions of the UV band light source hole 21 and the B band light source hole 22, respectively, and each of the two LED mounting bases 4 is equipped with an LED light source 41.

[0029] It should be noted that both LED mounting bases 4 described in this embodiment are connected to the internal space of the light source switching support 2.

[0030] Specifically, to address the issue that some instruments are equipped with only a single light source or lack precise and flexible light source switching, failing to meet diverse detection needs, the mounting base 1 is installed below the monitoring area of ​​the automatic vaginal secretion detection device. The bright field light source aperture 11 corresponds to the detection area. When vaginal secretions are extracted and placed in the detection area, the bright field light source aperture 11 corresponds to the vaginal secretion position, and is centered on the mounting base 1. The UV band light source aperture 21 and the B band light source aperture 22 are located on either side of the bright field light source aperture 11. The UV band light source aperture 21 and the B band light source aperture 22 can be rotated to a position above the bright field light source aperture 11, corresponding to the vaginal secretion position. The mounting base 1 supports and adjusts the angle of the main mounting frame 12 via a motor 3 and a rotating shaft 31. The main mounting frame 12 drives the light source switching support 2 to rotate, achieving angle switching between the UV band light source aperture 21 and the B band light source aperture 22. The LED mounting base 4... The LED light source 41 in the inner cavity projects specific light sources to the UV band light source hole 21 and the B band light source hole 22, enabling them to project the corresponding wavelengths of light. When using the bright field light source hole 11, the motor 3 does not operate, the bright field light source hole 11 is centered, and the bright field light source is in the optical path, allowing for preliminary observation of the sample, such as observing cell morphology, secretion color, and texture. When switching to the B band light source, the motor 3 drives the rotating shaft 31 to rotate 40 degrees clockwise, moving the B band light source hole 22 above the bright field light source hole 11. When switching to the UV band light source, the shaft rotates 40 degrees counterclockwise, aligning the UV band light source hole 21 with the bright field light source hole 11. The operation is simple and convenient, requiring only the rotation and repositioning of the light source switching support 2. The switching is precise and flexible, meeting various detection needs, improving the comprehensiveness and accuracy of detection, and facilitating the application and promotion of the instrument in clinical diagnosis.

[0031] In one embodiment of this utility model, such as Figures 1-4 As shown, a motor support base 32 is provided on the outside of the motor 3. The motor support base 32 is installed on the top of the mounting base plate 1. A bearing 33 and a connecting bushing 34 are installed between the rotating shaft 31 and the motor support base 32.

[0032] It should be noted that the main mounting bracket 12 described in this embodiment is rotatably connected to the top of the motor support 32.

[0033] Specifically, the mounting base 1 fixes the motor 3 through the motor support 32, providing a stable mounting foundation to ensure that the motor 3 maintains a fixed position and orientation during operation, preventing the motor 3 from moving due to vibration or external force. The bearing 33 supports the rotating shaft 31 of the motor 3, enabling the motor 3 to operate smoothly and withstand radial and axial loads, ensuring that the rotating shaft 31 will not shake or be damaged due to uneven force during operation. The connecting bushing 34 positions the bearing 33.

[0034] In one embodiment of this utility model, such as Figures 1-4 As shown, two dichroic mirrors 5 and two mirror pressure plates 51 are installed inside the light source switching support 2. The two dichroic mirrors 5 correspond to the positions of the UV band light source hole 21 and the B band light source hole 22, respectively.

[0035] It should be noted that the dichroic mirror 5 described in this embodiment is fixed inside the light source switching support 2 by the mirror pressure plate 51.

[0036] Specifically, the dichroic mirror 5 reflects or transmits light of a specific wavelength for adjusting and splitting the optical path, so that the light can accurately illuminate the sample and be detected. The mirror pressure plate 51 fixes the dichroic mirror, ensuring that the position of the dichroic mirror 5 is stable during the operation of the instrument and ensuring the accuracy of the optical path.

[0037] In one embodiment of this utility model, such as Figures 1-4 As shown, four excitation filters 6 are provided inside the light source switching support 2. All four excitation filters 6 are installed inside the light source switching support 2 through corresponding filter retaining rings 61.

[0038] It should be noted that the dichroic mirror 5 described in this embodiment is located between the two corresponding excitation filters 6.

[0039] Specifically, the excitation filter 6 filters the light emitted by the LED light source 41, allowing only light within a specific wavelength range to pass through, ensuring that the light entering the optical path meets the detection requirements. During fluorescence detection, the excitation filter can filter out unwanted light, allowing specific wavelengths of light emitting sample fluorescence to pass through, thus improving the accuracy of detection. During instrument vibration or light source switching, the filter retainer ring 61 ensures that the excitation filter 6 does not shift, guaranteeing the consistency of light filtering.

[0040] In one embodiment of this utility model, such as Figures 1-4As shown, a limiting mechanism 7 is provided on the mounting base plate 1. The limiting mechanism 7 includes two limiting photoelectric switches 71 and two photoelectric switch baffles 72. The two limiting photoelectric switches 71 are both installed on the top of the light source switching support 2, and the two photoelectric switch baffles 72 are respectively installed on the corresponding side of the motor support 32. The limiting photoelectric switches 71 and the photoelectric switch baffles 72 are electrically connected.

[0041] It should be noted that the limit photoelectric switch 71 described in this embodiment moves closer to or further away from the corresponding limit photoelectric switch 71 by following the light source switching support 2.

[0042] Specifically, the limiting mechanism 7 can prevent the motor shaft from rotating excessively. When the limiting photoelectric switch 71 rotates with the light source switching support 2, once it approaches or reaches the angle required for the correct light source switching, the photoelectric switch baffle 72 senses the limiting photoelectric switch 71. The limiting photoelectric switch 71 will feed the signal back to the control system of the motor 3. After receiving this signal, the control system will immediately stop the rotation of the motor 3, thereby avoiding excessive rotation of the rotating shaft 31, preventing incorrect light source switching or instrument damage, and improving accuracy.

[0043] In summary, the light source switching device for vaginal secretion detection according to this embodiment of the present invention, when using an automatic vaginal secretion detection device to detect vaginal secretions, firstly, the vaginal secretions are extracted and placed in the detection area. At this time, the bright field light source aperture 11 corresponds to the position of the vaginal secretions, and the bright field light source aperture 11 is centered on the mounting base plate 1. The motor 3 is not activated, the bright field light source aperture 11 is centered, and the bright field light source is in the optical path, allowing for preliminary observation of the sample, such as observing cell morphology, secretion color, and texture. When it is necessary to switch to the B-band light source, the control system activates the motor 3 to drive the rotation of the rotating shaft 31. The rotating shaft 31 rotates 40 degrees clockwise, and the B-band light source aperture 22 moves above the bright field light source aperture 11. When switching to the UV-band light source, it rotates 40 degrees counterclockwise. The UV band light source hole 21 is aligned with the bright field light source hole 11 above, making operation simple and convenient. At the same time, when the limit photoelectric switch 71 rotates with the light source switching support 2, once it approaches or reaches the angle required for the correct light source switching, the photoelectric switch baffle 72 senses the limit photoelectric switch 71. The limit photoelectric switch 71 will feed back the signal to the control system of the motor 3. After receiving this signal, the control system will immediately stop the rotation of the motor 3, thereby avoiding excessive rotation of the rotating shaft 31. During detection, the dichroic mirror 5 and the excitation filter 6 guide and filter the light emitted by the LED light source 41, so that the special light can be emitted through the UV band light source hole 21 and the B band light source hole 22, acting on the vaginal secretions being detected for different detection.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A light source switching device for secretion detection, comprising a mounting base plate (1), a bright field light source hole (11), and a main mounting bracket (12), characterized in that, A light source switching bracket (2) is rotatably connected between the top of the mounting base plate (1) and the main mounting frame (12). A motor (3) is installed at the top of the mounting base plate (1). LED mounting brackets (4) are installed at both ends of the light source switching bracket (2). The light source switching support (2) is provided with a UV band light source hole (21) and a B band light source hole (22), and the UV band light source hole (21) and the B band light source hole (22) are alternately rotated to be above the bright field light source hole (11); The output end of the motor (3) is equipped with a rotating shaft (31), which is rotatably connected to the inner wall of the main mounting frame (12). The light source switching support (2) is installed at the bottom of the main mounting frame (12). The two LED mounting bases (4) correspond to the UV band light source hole (21) and the B band light source hole (22) respectively, and each of the two LED mounting bases (4) is equipped with an LED light source (41).

2. The light source switching device for secretion detection according to claim 1, characterized in that, A motor support base (32) is provided on the outside of the motor (3). The motor support base (32) is installed on the top of the mounting base plate (1). A bearing (33) and a connecting bushing (34) are installed between the rotating shaft (31) and the motor support base (32).

3. The light source switching device for secretion detection according to claim 1, characterized in that, The light source switching support (2) is equipped with two dichroic mirrors (5) and two mirror pressure plates (51). The two dichroic mirrors (5) correspond to the positions of the UV band light source hole (21) and the B band light source hole (22), respectively.

4. The light source switching device for secretion detection according to claim 1, characterized in that, The light source switching support (2) is provided with four excitation filters (6), and the four excitation filters (6) are installed inside the light source switching support (2) through corresponding filter retaining rings (61).

5. The light source switching device for secretion detection according to claim 2, characterized in that, A limiting mechanism (7) is provided on the mounting base plate (1). The limiting mechanism (7) includes two limiting photoelectric switches (71) and two photoelectric switch baffles (72). The two limiting photoelectric switches (71) are installed on the top of the light source switching support (2). The two photoelectric switch baffles (72) are respectively installed on the corresponding side of the motor support (32). The limiting photoelectric switches (71) and the photoelectric switch baffles (72) are electrically connected.

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