Scanning type slit lamp assembly

Abstract

The utility model discloses a scanning type slit lamp assembly which comprises a support, a slit lamp installed on the support and a driving assembly, the support is provided with a first movable groove for the slit lamp to move after the slit lamp is installed, the first movable groove is in an arc shape, and the slit lamp is arranged in the first movable groove in a penetrating mode. And a driving assembly drives the first movable groove to move along the first movable groove. According to the technical scheme, the slit lamp mounted in the first movable groove can perform mobile scanning along the shape of the first movable groove through the driving assembly, so that the scanning stability and the detection success rate are improved.

Description

Technical Field

[0001] The utility model relates to the field of optical instruments, in particular to a scanning slit lamp component. Background Art

[0002] The slit lamp is a professional device commonly used in ophthalmic examinations. Its core function is to observe the eye structure in detail through a high-brightness, narrow beam (slit light), helping doctors diagnose a variety of eye diseases. At present, the slit lamp assembly is basically operated by manual inspection when examining the eye. The doctor holds the slit lamp assembly and moves it to scan the patient's eyes. This movement method relies on the doctor's hand stability. Any shaking may cause blurred imaging and missed lesions, which will have a certain impact on the success rate of detection. Therefore, how to improve the stability of the scan and increase the success rate of each detection is a technical problem that needs to be solved at present. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a scanning slit lamp assembly, which enables the slit lamp installed in the first movable groove to move and scan along the shape of the first movable groove through a driving assembly, thereby improving the stability during scanning and the success rate of detection.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a scanning slit lamp assembly, comprising a bracket, a slit lamp installed on the bracket, and a driving assembly, wherein the bracket is provided with a first movable groove for the slit lamp to move after installation, and the first movable groove is arc-shaped, the slit lamp is inserted into the first movable groove, and is driven by the driving assembly to move in and along the first movable groove.

[0005] As a further improvement of the present utility model, the driving assembly includes a motor, a nut seat, a screw, and a transmission plate fixedly connected to the nut seat, the motor is fixedly connected to the bracket, the screw is driven by the motor, the nut seat is installed on the screw and driven by the screw, the transmission plate corresponds to the position of the slit lamp and is provided with a second movable groove for the slit lamp to pass through, the second movable groove is provided with a space for the slit lamp to move forward and backward, the slit lamp is provided with an abutment surface abutting against the inner wall of the second movable groove, and the transmission plate is driven by the nut seat to drive the slit lamp to move in the first movable groove.

[0006] As a further improvement of the present invention, the second movable groove is in a waist shape, which can provide auxiliary thrust when the slit lamp returns from the extreme position of the second movable groove.

[0007] As a further improvement of the present invention, the bracket is provided with a third movable groove at a position corresponding to the transmission plate, the third movable groove extends along the axial direction of the screw rod, the transmission plate is provided with a vertical plate extending toward the third movable groove at a position corresponding to the third movable groove, and the vertical plate moves in the third movable groove through the transmission plate.

[0008] As a further improvement of the present invention, limit switches for detecting the vertical plate are provided on both sides of the third movable groove, and the limit switches are used to detect the limit travel of the vertical plate in the third movable groove.

[0009] As a further improvement of the present invention, a slider is fixedly connected to the transmission plate, and a guide rail slidably matched with the slider is provided at the position of the bracket corresponding to the slider. The guide rail extends along the axial direction of the screw rod, and the surfaces where the guide rail and the slider cooperate with each other are concave-convex. The slider is restricted from detaching from the guide rail under the action of gravity through the concave-convex cooperation.

[0010] As a further improvement of the utility model, the slit lamp is provided with an annular groove at the axial section position corresponding to the first movable groove, and an abutment component is provided in the annular groove. The abutment component includes a positioning column installed in the annular groove and a bearing sleeved on the positioning column. The slit lamp abuts against the inner wall of the first movable groove through the outer ring of the bearing.

[0011] As a further improvement of the present invention, a flange is provided on the positioning column to prevent the bearing from falling out.

[0012] As a further improvement of the utility model, a limiting ring is provided on the abutting component to prevent the slit lamp from falling out of the first movable groove.

[0013] As a further improvement of the utility model, a mirror assembly is also provided on the bracket, and the mirror assembly includes a mirror seat and a reflector. The mirror seat is fixedly connected to the bracket and corresponds to the side scanned by the slit lamp, and the reflector is tiltedly arranged on the mirror seat.

[0014] The beneficial effect of the utility model is that the slit lamp installed in the first movable groove can be moved and scanned along the shape of the first movable groove through the driving component, thereby improving the stability during scanning and the success rate of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the embodiment of the utility model from another perspective;

[0017] Figure 3 Schematic diagram of a driving assembly according to an embodiment of the present utility model.

[0018] Figure numbers: 1. bracket; 11. first movable groove; 12. third movable groove; 2. slit lamp; 21. abutment surface; 22. annular groove; 23. positioning column; 24. bearing; 25. limit ring; 3. motor; 4. nut seat; 5. screw rod; 6. transmission plate; 61. second movable groove; 62. vertical plate; 63. slider; 64. guide rail; 7. mirror seat; 8. reflector. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0020] Reference Figure 1-3 As shown, a scanning slit lamp 2 component includes a bracket 1, a slit lamp 2 installed on the bracket 1, and a driving component. The bracket 1 is provided with a first movable groove 11 for the slit lamp 2 to move after installation, and the first movable groove 11 is arc-shaped. The slit lamp 2 is inserted into the first movable groove 11 and is driven by the driving component to move along the first movable groove 11. The slit lamp 2 is movably set in the first movable groove 11 and controlled by the driving component, so that the scanning position of the slit lamp 2 can be adjusted. Compared with the traditional slit lamp 2 component, this technical solution enables the slit lamp 2 to move smoothly during the scanning process, effectively improving the success rate of detection.

[0021] The driving assembly includes a motor 3, a nut seat 4, a screw 5, and a transmission plate 6 fixedly connected to the nut seat 4. The motor 3 is fixedly connected to the bracket 1, the screw 5 is driven by the motor 3, the nut seat 4 is installed on the screw 5 and driven by the screw 5, and the nut seat 4 is driven by the screw 5 to perform a linear reciprocating motion along the axial direction of the screw 5. The transmission plate 6 is provided with a second movable groove 61 for the slit lamp 2 to penetrate at a position corresponding to the slit lamp 2, and a space for the slit lamp 2 to move forward and backward is provided in the second movable groove 61. The slit lamp 2 is provided with a The abutment surface 21 abuts against the inner wall of the second movable groove 61, and the transmission plate 6 is driven by the nut seat 4 to drive the slit lamp 2 to move in the first movable groove 11. The abutment surface 21 abuts against the inner wall of the second movable groove 61 so that it can only move forward and backward in the second movable groove 61. The second movable groove 61 is reserved for the slit lamp 2 to move forward and backward. The transmission plate 6 will not be stuck due to interference when driving the slit lamp 2 to move. In this embodiment, the second movable groove 61 is shaped like a waist, which can provide auxiliary thrust when the slit lamp 2 returns from the extreme position of the second movable groove 61.

[0022] A third movable groove 12 is provided at a position of the bracket 1 corresponding to the transmission plate 6, and the third movable groove 12 extends along the axial direction of the screw rod 5. A vertical plate 62 extending toward the third movable groove 12 is provided at a position of the transmission plate 6 corresponding to the third movable groove 12, and the vertical plate 62 moves in the third movable groove 12 through the transmission plate 6. The purpose of setting the third movable groove 12 and the vertical plate 62 is to limit the movable stroke of the slit lamp 2. The movable stroke of the slit lamp 2 is limited by controlling the length of the third movable groove 12. In order to prevent the slit lamp 2 from exceeding the safe movable stroke, limit switches for detecting the vertical plate 62 are provided on both sides of the third movable groove 12. The limit switch is used to detect the extreme stroke of the vertical plate 62 in the third movable groove 12.

[0023] A slider 63 is fixedly connected to the transmission plate 6, and a guide rail 64 slidably matched with the slider 63 is provided at a position of the bracket 1 corresponding to the slider 63. The guide rail 64 extends along the axial direction of the screw rod 5, and the surfaces where the guide rail 64 and the slider 63 cooperate with each other are concave-convex. The slider 63 limits the slider 63 from detaching from the guide rail 64 under the action of gravity through the concave-convex cooperation. The purpose of providing the slider 63 and the guide rail 64 is to reduce the load on the screw rod 5 and prevent the screw rod 5 from being deformed due to long-term pressure, thereby reducing the service life of the screw rod 5.

[0024] The slit lamp 2 is provided with an annular groove 22 at the axial section position corresponding to the first movable groove 11, and an abutting component is provided in the annular groove 22, and the abutting component includes a positioning column 23 installed in the annular groove 22 and a bearing 24 sleeved on the positioning column 23. The slit lamp 2 abuts against the inner wall of the first movable groove 11 through the outer ring of the bearing 24. In this embodiment, four groups of bearings 24 and positioning columns 23 are installed. The outer ring of the bearing 24 cooperates with the inner wall of the first movable groove 11 to reduce friction during movement, and the movement of the slit lamp 2 in the first movable groove 11 can become smooth, while the service life of the first movable groove 11 is improved. The positioning column 23 is provided with a flange to prevent the bearing 24 from falling out. The flange is provided to prevent the bearing 24 installed on the positioning column 23 from falling out, causing the slit lamp 2 to deviate from the movement trajectory. The abutting component is provided with a limiting ring 25 to prevent the slit lamp 2 from falling out of the first movable groove 11. The limiting ring 25 can make the slit lamp 2 hang on the bracket 1 and will not fall out of the first movable groove 11.

[0025] The bracket 1 is also provided with a mirror assembly, which includes a mirror base 7 and a reflector 8. The mirror base 7 is fixedly connected to the bracket 1 and corresponds to the side scanned by the slit lamp 2. The reflector 8 is tiltedly arranged on the mirror base 7. By adjusting the position of the slit lamp 2 in the first movable groove 11, the reflector 8 reflects light to different areas of the eye. In addition, the reflector 8 is arranged to cooperate with the slit lamp 2 so that there are more options for the installation position of the bracket 1, thereby better arranging the space inside the equipment.

[0026] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A scanning slit lamp assembly, characterized in that: The invention comprises a bracket, a slit lamp installed on the bracket, and a driving component. The bracket is provided with a first movable groove for the slit lamp to move after installation, and the first movable groove is arc-shaped. The slit lamp is inserted in the first movable groove and is driven by the driving component to move in and along the first movable groove.

2. The scanning slit lamp assembly according to claim 1, characterized in that: The driving assembly includes a motor, a nut seat, a screw, and a transmission plate fixedly connected to the nut seat, the motor is fixedly connected to the bracket, the screw is driven by the motor, the nut seat is installed on the screw and driven by the screw, the transmission plate is provided with a second movable groove for the slit lamp to pass through at a position corresponding to the slit lamp, the second movable groove is provided with a space for the slit lamp to move forward and backward, the slit lamp is provided with an abutment surface that abuts against the inner wall of the second movable groove, and the transmission plate is driven by the nut seat to drive the slit lamp to move in the first movable groove.

3. The scanning slit lamp assembly according to claim 2, characterized in that: The second movable groove is in a waist shape, which can provide auxiliary thrust when the slit lamp returns from the extreme position of the second movable groove.

4. The scanning slit lamp assembly according to claim 2 or 3, characterized in that: The bracket is provided with a third movable groove at a position corresponding to the transmission plate, and the third movable groove extends along the axial direction of the screw rod. The transmission plate is provided with a vertical plate extending toward the third movable groove at a position corresponding to the third movable groove, and the vertical plate moves in the third movable groove through the transmission plate.

5. The scanning slit lamp assembly according to claim 4, characterized in that: Limit switches for detecting the vertical plate are provided on both sides of the third movable groove, and the limit switches are used to detect the limit travel of the vertical plate in the third movable groove.

6. The scanning slit lamp assembly according to claim 2, characterized in that: A slider is fixedly connected to the transmission plate, and a guide rail slidably matched with the slider is provided at a position of the bracket corresponding to the slider. The guide rail extends along the axial direction of the screw rod, and the surfaces where the guide rail and the slider cooperate with each other are concave-convex. The slider is restricted from detaching from the guide rail under the action of gravity through the concave-convex cooperation.

7. The scanning slit lamp assembly according to claim 1, characterized in that: The slit lamp is provided with an annular groove at the axial section position corresponding to the first movable groove, and an abutment component is provided in the annular groove. The abutment component includes a positioning column installed in the annular groove and a bearing sleeved on the positioning column. The slit lamp abuts against the inner wall of the first movable groove through the outer ring of the bearing.

8. The scanning slit lamp assembly according to claim 7, characterized in that: The positioning column is provided with a flange to prevent the bearing from falling out.

9. The scanning slit lamp assembly according to claim 7, characterized in that: The abutting component is provided with a limiting ring for preventing the slit lamp from falling out of the first movable groove.

10. The scanning slit lamp assembly according to claim 1, characterized in that: The bracket is also provided with a mirror assembly, which includes a mirror seat and a reflector. The mirror seat is fixedly connected to the bracket and corresponds to a side scanned by the slit lamp, and the reflector is tiltedly arranged on the mirror seat.

Images