Avoidance type slit lamp assembly

Abstract

The utility model discloses a receding type slit lamp assembly which comprises a fixed seat, a first driving assembly, a movable plate movably connected to the fixed seat and a slit lamp assembly fixedly connected to the movable plate, and the movable plate is driven by the first driving assembly to control the slit lamp assembly to be close to or away from eyes. According to the technical scheme, the slit lamp assembly is driven by the first driving assembly to avoid the fundus camera or the other slit lamp assembly, and the two slit lamp assemblies installed in the equipment are prevented from interfering with each other or interfering with the fundus camera.

Description

Technical Field

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

[0002] The ophthalmic equipment market is trending towards multifunctional integration. Slit lamp components are usually integrated with functional modules such as fundus cameras to form one-stop ophthalmic equipment to reduce the patient's need to move. In order to avoid interference between the fundus camera and the slit lamp component, the fundus camera and the slit lamp component need to be located away from each other, but this will cause the entire device to become larger and occupy a larger space. At the same time, the slit lamp component needs to correspond to the left and right eyes separately in some applications, so there will be two slit lamp components. At this time, the two slit lamp components are also prone to interference. Therefore, it is currently necessary to consider how to avoid the slit lamp component from interfering with the fundus camera or the work of another slit lamp component. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an avoidance type slit lamp assembly, which enables the slit lamp assembly to be driven by a first driving assembly to avoid a fundus camera or another slit lamp assembly, thereby preventing the two slit lamp assemblies installed in the device from interfering with each other or interfering with the fundus camera.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an avoidance type slit lamp assembly, comprising a fixed seat, a first driving assembly, a movable plate movably connected to the fixed seat, and a slit lamp assembly fixedly connected to the movable plate, wherein the movable plate is driven by the first driving assembly to control the slit lamp assembly to approach or move away from the eye to avoid a fundus camera or another slit lamp assembly.

[0005] As a further improvement of the present utility model, the first driving assembly includes a first motor installed on a fixed seat and a rack installed on a movable plate, the output shaft of the first motor is provided with a gear meshing with the rack, the fixed seat is provided with a first guide rail, the movable plate is provided with a first slider that is concave-convexly matched with the first guide rail, the first slider is used to limit the gear and rack from disengaging through concave-convex matching, the movable plate is driven to approach or move away from the eye through the matching of the gear and the rack, and the matching of the gear and the rack drives the movable plate to move in a first direction and a second direction, wherein the first direction is the direction approaching or moving away from the face, and the second direction is the direction approaching or moving away from the bridge of the nose.

[0006] As a further improvement of the utility model, the slit lamp assembly includes a bracket fixedly connected to a movable plate, a slit lamp installed on the bracket, and a second driving assembly. 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 second driving assembly to move in and along the first movable groove.

[0007] 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.

[0008] As a further improvement of the present utility model, the second drive assembly includes a second motor, a nut seat, a screw, and a transmission plate fixedly connected to the nut seat, the second motor is fixedly connected to the bracket, the screw is driven by the second 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 the 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 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] As a further improvement of the present invention, a second slider is fixedly connected to the transmission plate, and a second guide rail slidably matched with the second slider is provided at a position of the bracket corresponding to the second slider, the second guide rail extends along the axial direction of the screw rod, and the second guide rail and the second slider are concave-convex matched, and the second slider is limited by the concave-convex match to separate from the second guide rail under the action of gravity.

[0013] As a further improvement of the utility model, a third guide rail is provided on the fixed seat, and a third slider which cooperates with the third guide rail is provided on the movable plate. The third slider is limited from detaching from the third guide rail under the action of gravity through the concave-convex cooperation.

[0014] The utility model has the beneficial effects of enabling the slit lamp assembly to be driven by the first driving assembly to avoid the fundus camera or another slit lamp assembly, thereby preventing the two slit lamp assemblies installed in the device from interfering with each other or with the fundus camera. 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 This is a schematic diagram of a slit lamp assembly according to an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of another viewing angle of the slit lamp assembly of the utility model embodiment;

[0018] Figure 4 This is a schematic diagram of the second driving assembly of an embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of an embodiment of the present invention.

[0020] 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. second motor; 4. nut seat; 5. screw rod; 6. transmission plate; 61. second movable groove; 62. vertical plate; 63. second slider; 64. second guide rail; 7. mirror seat; 8. reflector; 9. fixed seat; 91. first guide rail; 92. first slider; 93. third guide rail; 94. third slider; 10. movable plate; 101. first motor; 102. rack; 103. gear; 104. infrared fill light. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0022] Reference Figure 1-5 As shown, an avoidance slit lamp assembly comprises a fixing seat 9, a first driving assembly, a movable plate 10 movably connected to the fixing seat 9, and a slit lamp assembly fixedly connected to the movable plate 10. The fixing seat 9 is fixed on an ophthalmic device as a support for the entire assembly. The movable plate 10 is driven by the first driving assembly to control the slit lamp assembly to approach or move away from the eye to avoid a fundus camera or another slit lamp assembly. In actual use, reference is made to Figure 5The technical solution is arranged in pairs on both sides of the fundus camera. When the slit lamp assembly on one side is driven by the first driving assembly to move close to the eye and perform inspection, the slit lamp assembly on the other side remains stationary. When the inspection of the slit lamp assembly on one side is completed, it is driven by the first driving assembly to retract, providing space for the slit lamp assembly on the other side to extend out, thereby preventing interference between the slit lamp assemblies. In some fundus cameras with forward and backward movable functions, when the inspection of the slit lamp assemblies on both sides is completed, the slit lamp assemblies on both sides are retracted, reserving space for the fundus camera to extend out, thereby avoiding interference between the slit lamp assembly and the fundus camera.

[0023] The first driving assembly includes a first motor 101 mounted on a fixed seat 9, and a rack 102 mounted on a movable plate 10. A gear 103 meshing with the rack 102 is provided on the output shaft of the first motor 101. A first guide rail 91 is provided on the fixed seat 9. A first slider 92 matching with the first guide rail 91 is provided on the movable plate 10. The first slider 92 matches with the rack 102 to limit the gear 103 from disengaging. The movable plate 10 is driven to approach or move away from the eye by the gear 103 matching with the rack 102. The gear 103 matches with the rack 102 to drive the movable plate 10 generates movement in a first direction and a second direction, wherein the first direction is a direction close to or away from the face of the person, and the second direction is a direction close to or away from the bridge of the nose. The slit lamp assembly installed on the movable plate 10 cooperates with the gear 103 and the rack 102 to enable the slit lamp assembly to approach the direction of the face and the bridge of the nose. When the slit lamp assembly is inspected, it retreats in a direction away from the face and the bridge of the nose. To ensure the safe movable travel of the movable plate 10, limit switches are provided on both sides of the movable plate 10, respectively. The limit switches are used to detect the extreme position of the movable plate 10 to prevent it from exceeding the travel and causing a collision.

[0024] In the present solution, in order to further ensure the stability of the movable plate 10, a third guide rail 93 is arranged on the fixed seat 9, and a third slider 94 is provided on the movable plate 10, which is matched with the third guide rail 93 in a concave-convex manner. The third slider 94 is matched with the third guide rail 93 to limit the third slider 94 from detaching from the third guide rail 93 under the action of gravity. The cooperation between the two sets of guide rails and the slider enables the movable plate 10 to move smoothly on the guide rail. In the present solution, an infrared fill light 104 is also provided on the movable plate 10. The provision of the infrared fill light 104 can improve the patient's comfort and avoid strong light stimulation causing the patient to shed tears or blink.

[0025] The slit lamp assembly includes a bracket 1 fixedly connected to a movable plate 10, a slit lamp 2 installed on the bracket 1, and a second driving assembly. 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 second driving assembly 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 second driving assembly, so that the scanning range of the slit lamp 2 can be adjusted. Compared with the traditional slit lamp assembly, the doctor can actively adjust the position of the slit lamp 2 to achieve a comprehensive examination of different areas of the eye.

[0026] The second driving assembly includes a second motor 3, a nut seat 4, a screw 5, and a transmission plate 6 fixedly connected to the nut seat 4. The second motor 3 is fixedly connected to the bracket 1, the screw 5 is driven by the second 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 An abutment surface 21 is provided on the top, which abuts against the inner wall of the second movable groove 61. 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 in a waist shape, which can provide auxiliary thrust when the slit lamp 2 returns from the extreme position of the second movable groove 61.

[0027] 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.

[0028] A second slider 63 is fixedly connected to the transmission plate 6, and a second guide rail 64 slidably matched with the second slider 63 is provided at a position of the bracket 1 corresponding to the second slider 63. The second guide rail 64 extends along the axial direction of the screw rod 5, and the surfaces where the second guide rail 64 and the second slider 63 cooperate with each other are concave-convex. The second slider 63 limits the second slider 63 from detaching from the second guide rail 64 under the action of gravity through the concave-convex cooperation. The purpose of providing the second slider 63 and the second 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.

[0029] 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.

[0030] 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.

[0031] 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 slit lamp assembly with avoidance, characterized in that: The invention comprises a fixing seat, a first driving assembly, a movable plate movably connected to the fixing seat, and a slit lamp assembly fixedly connected to the movable plate. The movable plate is driven by the first driving assembly to control the slit lamp assembly to approach or move away from the eye to avoid a fundus camera or another slit lamp assembly.

2. The avoidance slit lamp assembly according to claim 1, characterized in that: The first driving assembly includes a first motor installed on a fixed seat and a rack installed on a movable plate, a gear meshing with the rack is provided on the output shaft of the first motor, a first guide rail is provided on the fixed seat, and a first slider is provided on the movable plate to cooperate with the first guide rail, and the first slider is used to limit the gear and the rack from disengaging through the cooperation of the gear and the rack. The movable plate is driven to approach or move away from the eye through the cooperation of the gear and the rack, and the cooperation of the gear and the rack drives the movable plate to move in a first direction and a second direction, wherein the first direction is the direction approaching or moving away from the face, and the second direction is the direction approaching or moving away from the bridge of the nose.

3. The avoidance slit lamp assembly according to claim 2, characterized in that: The slit lamp assembly includes a bracket fixedly connected to a movable plate, a slit lamp installed on the bracket, and a second driving assembly. 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 second driving assembly to move in and along the first movable groove.

4. The avoidance slit lamp assembly according to claim 3, 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.

5. The avoidance slit lamp assembly according to claim 3 or 4, characterized in that: The second driving assembly includes a second motor, a nut seat, a screw rod, and a transmission plate fixedly connected to the nut seat. The second motor is fixedly connected to the bracket, the screw rod is driven by the second motor, the nut seat is installed on the screw rod and driven by the screw rod, 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.

6. The avoidance slit lamp assembly according to claim 5, 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.

7. The avoidance slit lamp assembly according to claim 6, 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.

8. The avoidance slit lamp assembly according to claim 3 or 4, 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.

9. The avoidance slit lamp assembly according to claim 5, characterized in that: A second slider is fixedly connected to the transmission plate, and a second guide rail slidably matched with the second slider is provided at a position of the bracket corresponding to the second slider. The second guide rail extends along the axial direction of the screw rod, and the second guide rail and the second slider are concave-convex matched. The second slider is limited from detaching from the second guide rail under the action of gravity through the concave-convex match.

10. The avoidance slit lamp assembly according to claim 2, characterized in that: The fixing seat is provided with a third guide rail, and the movable plate is provided with a third sliding block which is matched with the third guide rail in a concave-convex manner. The third sliding block is limited from detaching from the third guide rail under the action of gravity by the concave-convex cooperation.

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