A fundus camera light shielding device

Abstract

The utility model relates to the technical field of fundus camera, especially to a fundus camera light shielding device, its through limit structure and guide structure cooperation with each other fixes the light shielding cloth on fundus camera, then in the inspection process, through the light shielding cloth to the light around the patient's eye is shielded, and through the counterweight structure makes the light shielding cloth more conform to the face shape of patient, thereby improving the practicability of fundus camera light shielding device, including limit structure, still including light shielding structure and guide structure, light shielding structure installs on the guide structure, limit structure installs on the light shielding structure, through the light shielding structure, limit structure and guide structure cooperation with each other to the light around is shielded, the light shielding structure includes light shielding cloth and counterweight structure, light shielding cloth installs on the guide structure and limit structure, counterweight structure installs on the light shielding cloth.

Description

Technical Field

[0001] This utility model relates to the technical field of fundus cameras, and in particular to a light-shielding device for fundus cameras. Background Technology

[0002] A fundus camera is a professional medical recording instrument, mainly used to record the condition of the fundus and assist in the diagnosis and treatment of eye diseases. When taking fundus images, ambient light can easily affect the eyes, increasing the difficulty of taking the pictures.

[0003] Therefore, inventions such as the eye mask component and fundus camera disclosed in utility model patent CN220001728U and the light-shielding device for fundus camera disclosed in patent CN215078347U have emerged to block light and assist the fundus camera in examining the user's eyes.

[0004] However, during use, it was found that the existing light-blocking devices have a relatively simple structure. While blocking light, they are inconvenient for observing the patient's eyes. In addition, they are lightweight and do not fit the user's face well, affecting the light-blocking effect and resulting in poor practicality. Therefore, there is an urgent need for a light-blocking device for fundus cameras to improve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a fundus camera light shielding device that uses a limiting structure and a guiding structure to fix a light shielding cloth to a fundus camera. During the examination, the light shielding cloth blocks the light around the patient's eyes, and a counterweight structure makes the light shielding cloth fit the patient's facial shape better, thereby improving the practicality of the fundus camera light shielding device.

[0006] This utility model provides a light-shielding device for a fundus camera, including a limiting structure; it also includes a light-shielding structure and a guiding structure, with the light-shielding structure installed on the guiding structure and the limiting structure installed on the light-shielding structure. The light-shielding structure, the limiting structure, and the guiding structure work together to block ambient light. The light-shielding structure includes a light-shielding cloth and a counterweight structure. The light-shielding cloth is installed on the guide structure and the limiting structure, and the counterweight structure is installed on the light-shielding cloth. The light-shielding cloth is fixed to the fundus camera by the cooperation of the limiting structure and the guiding structure. Then, during the examination, the light-shielding cloth blocks the light around the patient's eyes. The counterweight structure makes the light-shielding cloth fit the shape of the patient's face better, thereby improving the practicality of the fundus camera light-shielding device.

[0007] Preferably, the counterweight structure includes two sets of strip-shaped cloth bags, which are respectively installed on the front and rear of the light-blocking cloth, and each set of strip-shaped cloth bags contains a number of plastic particles; the weight of the plastic particles keeps the front and rear of the light-blocking cloth hanging down, making the front and rear of the light-blocking cloth fit the patient's face better, thereby improving the light-blocking effect of the light-blocking cloth.

[0008] Preferably, the top of the light-blocking cloth is a thicker part, the front and rear parts of the light-blocking cloth are semi-transparent parts, and the light-blocking cloth is made of elastic material; the thicker part at the top of the light-blocking cloth improves the light-blocking effect, and the semi-transparent parts at the front and rear of the light-blocking cloth facilitate the inspection personnel to observe the user's eyes, thereby improving the practicality of the fundus camera light-blocking device.

[0009] Preferably, the guiding structure includes a guide rod and a clamp. The guide rod is mounted on the clamp, and one end of the light-blocking cloth is fitted onto the guide rod. Multiple sets of slip rings are provided at the fitted end of the light-blocking cloth to maintain the smooth sliding of the light-blocking cloth on the guide rod. The clamp is held on the head support of the fundus camera. When adjusting the position of the user's head, one end of the light-blocking cloth slides on the guide rod to maintain the state of the light-blocking cloth blocking the light around the user's eyes, thereby improving the practicality of the fundus camera light-blocking device.

[0010] Preferably, the clamps are in two sets, and the two sets of clamps are respectively installed on both ends of the guide rod. Each set of clamps consists of two sets of first clamping plates, a second clamping plate, bolts, and two sets of silicone pads. The first clamping plate is installed on the guide rod, the second clamping plate is slidably installed on the first clamping plate, the bolts are threaded onto the second clamping plate and the first clamping plate, and the two sets of silicone pads are respectively installed on the first clamping plate and the second clamping plate. By rotating the bolts, the first clamping plate and the second clamping plate are clamped onto the head bracket of the fundus camera, thereby fixing the guide rod and improving the practicality of the fundus camera light-shielding device.

[0011] Preferably, the guide rod is made of elastic stainless steel; thereby improving the practicality of the shading device for the fundus camera.

[0012] Preferably, the limiting structure includes Velcro A and Velcro B. Velcro A has an adhesive strip at its bottom and is attached to the fundus camera. Velcro B is installed on the other end of the light-blocking cloth. In use, Velcro B is attached to Velcro A and used with the guide rod to fix the light-blocking cloth, thereby improving the practicality of the fundus camera light-blocking device.

[0013] Preferably, the Velcro A and Velcro B cooperate with the guide rod to make the installation and adjustment of the elastic semi-transparent light-blocking cloth more convenient. At the same time, under the action of the counterweight structure, the elastic semi-transparent light-blocking cloth can effectively block light and facilitate observation of the patient's eyes, solving the problems of light blocking and observation not being able to be taken into account and poor fit in the prior art.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by combining the limiting of the Velcro, the guiding of the guide rod and the light blocking of the elastic semi-transparent cloth, it not only effectively blocks the ambient light, but also facilitates the observation of the patient's eyes and adapts to the movement of the lens, thereby improving the operational convenience and imaging quality of the fundus camera. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 This is a utility model Figure 2 A magnified structural diagram of part A in the diagram; Figure 4 This is a top view of the structure of this utility model; Figure 5 This is a utility model Figure 4 A magnified structural diagram of part B in the diagram.

[0016] The following are labels in the attached diagram: 1. Blackout cloth; 2. Strip bag; 3. Guide rod; 4. Clamp; 5. First clamp; 6. Second clamp; 7. Bolt; 8. Silicone pad; 9. Velcro A; 10. Velcro B. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0018] A light-shielding device for a fundus camera includes a limiting structure; it also includes a light-shielding structure and a guiding structure, wherein the light-shielding structure is installed on the guiding structure and the limiting structure is installed on the light-shielding structure, and the light-shielding structure, the limiting structure and the guiding structure cooperate with each other to block ambient light; The light-shielding structure includes a light-shielding cloth 1 and a counterweight structure. The light-shielding cloth 1 is installed on the guide structure and the limiting structure, and the counterweight structure is installed on the light-shielding cloth 1. The counterweight structure includes two sets of strip-shaped cloth bags 2, which are respectively installed at the front and rear of the light-blocking cloth 1, and each set of strip-shaped cloth bags 2 contains a number of plastic particles. The top of the light-blocking cloth 1 is a thicker part, the front and back of the light-blocking cloth 1 are semi-transparent parts, and the light-blocking cloth 1 is made of elastic material. The guiding structure includes a guide rod 3 and a clamp 4. The guide rod 3 is mounted on the clamp 4. One end of the light-blocking cloth 1 is fitted onto the guide rod 3, and multiple sets of slip rings are provided at the fitting part of the light-blocking cloth 1 to maintain the smoothness of the light-blocking cloth 1 sliding on the guide rod 3. The clamps 4 are in two sets, and the two sets of clamps 4 are respectively installed on both ends of the guide rod 3. Each set of clamps 4 consists of two sets of first clamping plates 5, second clamping plates 6, bolts 7 and two sets of silicone pads 8. The first clamping plate 5 is installed on the guide rod 3, the second clamping plate 6 is slidably installed on the first clamping plate 5, the bolts 7 are threadedly installed on the second clamping plate 6 and the first clamping plate 5, and the two sets of silicone pads 8 are respectively installed on the first clamping plate 5 and the second clamping plate 6. The guide rod 3 is made of elastic stainless steel. The clamp 4 is held in place on the head support of the fundus camera, and one end of the light-shielding cloth 1 is fixed. Then, the other end of the light-shielding cloth 1 is fixed by the limiting structure. During the examination, the user places their forehead against the bend of the guide rod 3. The weight of the plastic particles keeps the front and back of the light-shielding cloth 1 hanging down, making the front and back of the light-shielding cloth 1 fit the patient's face better. Then, the light-shielding cloth 1 is used to block the light around the patient's eyes, thereby improving the practicality of the fundus camera light-shielding device. Example 2

[0019] like Figures 1 to 5 As shown, a light-shielding device for a fundus camera includes a limiting structure; it also includes a light-shielding structure and a guiding structure. The light-shielding structure is installed on the guiding structure, and the limiting structure is installed on the light-shielding structure. The light-shielding structure, the limiting structure, and the guiding structure work together to block ambient light. The light-shielding structure includes a light-shielding cloth 1 and a counterweight structure. The light-shielding cloth 1 is installed on the guide structure and the limiting structure, and the counterweight structure is installed on the light-shielding cloth 1. The counterweight structure includes two sets of strip-shaped cloth bags 2, which are respectively installed at the front and rear of the light-blocking cloth 1, and each set of strip-shaped cloth bags 2 contains a number of plastic particles. The top of the light-blocking cloth 1 is a thicker part, the front and back of the light-blocking cloth 1 are semi-transparent parts, and the light-blocking cloth 1 is made of elastic material. The guiding structure includes a guide rod 3 and a clamp 4. The guide rod 3 is mounted on the clamp 4. One end of the light-blocking cloth 1 is fitted onto the guide rod 3, and multiple sets of slip rings are provided at the fitting part of the light-blocking cloth 1 to maintain the smoothness of the light-blocking cloth 1 sliding on the guide rod 3. The clamps 4 are in two sets, and the two sets of clamps 4 are respectively installed on both ends of the guide rod 3. Each set of clamps 4 consists of two sets of first clamping plates 5, second clamping plates 6, bolts 7 and two sets of silicone pads 8. The first clamping plate 5 is installed on the guide rod 3, the second clamping plate 6 is slidably installed on the first clamping plate 5, the bolts 7 are threadedly installed on the second clamping plate 6 and the first clamping plate 5, and the two sets of silicone pads 8 are respectively installed on the first clamping plate 5 and the second clamping plate 6. The guide rod 3 is made of elastic stainless steel. The limiting structure includes Velcro A9 and Velcro B10. Velcro A9 has an adhesive strip at its bottom and is attached to the fundus camera. Velcro B10 is installed on the other end of the light-blocking cloth 1. The Velcro A9 and Velcro B10 work together with the guide rod 3 to make the installation and adjustment of the elastic semi-transparent light-blocking cloth 1 more convenient. At the same time, under the action of the counterweight structure, the elastic semi-transparent light-blocking cloth 1 can effectively block light and facilitate observation of the patient's eyes, solving the problems of light blocking and observation not being able to be taken into account and poor fit in the existing technology. Clamp 4 is attached to the head support of the fundus camera to fix one end of the light-shielding cloth 1. Then, Velcro B10 is attached to Velcro A9 to fix the other end of the light-shielding cloth 1. During the examination, the user places their forehead against the bend of the guide rod 3. The weight of the plastic particles keeps the front and back of the light-shielding cloth 1 hanging down, making the front and back of the light-shielding cloth 1 fit the patient's face better. Then, the light-shielding cloth 1 is used to block the light around the patient's eyes, thereby improving the practicality of the fundus camera light-shielding device.

[0020] The main function achieved by this invention is that the clarity of fundus images is significantly improved after using this light-shielding device, the shooting time is shortened, and the examination efficiency and diagnostic accuracy are improved.

[0021] The guide rod 3 and the clamp 4 are threadedly connected, which facilitates the replacement or cleaning of the light-blocking cloth 1; the plastic particles in the strip-shaped cloth bag 2 can be replaced with buckwheat hulls or other small-particle materials according to actual use; the Velcro A9 and Velcro B10 of the light-blocking device for a fundus camera of this utility model are purchased from the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from technicians in this field.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A light-shielding device for a fundus camera, comprising a limiting structure; characterized in that, It also includes a light-shielding structure and a guiding structure. The light-shielding structure is installed on the guiding structure, and the limiting structure is installed on the light-shielding structure. The light-shielding structure, the limiting structure, and the guiding structure work together to block the surrounding light. The light-shielding structure includes a light-shielding cloth (1) and a counterweight structure. The light-shielding cloth (1) is installed on the guide structure and the limiting structure, and the counterweight structure is installed on the light-shielding cloth (1).

2. The light-shielding device for a fundus camera as described in claim 1, characterized in that, The counterweight structure includes two sets of strip-shaped cloth bags (2), which are respectively installed at the front and rear of the light-blocking cloth (1), and each set of strip-shaped cloth bags (2) contains a number of plastic particles.

3. The light-shielding device for a fundus camera as described in claim 1, characterized in that, The top of the light-blocking cloth (1) is a thicker part, the front and back of the light-blocking cloth (1) are semi-transparent parts, and the light-blocking cloth (1) is made of elastic material.

4. The light-shielding device for a fundus camera as described in claim 1, characterized in that, The guide structure includes a guide rod (3) and a clamp (4). The guide rod (3) is mounted on the clamp (4). One end of the light-blocking cloth (1) is fitted onto the guide rod (3). Multiple sets of slip rings are provided at the fitted part of the light-blocking cloth (1) to maintain the smoothness of the light-blocking cloth (1) sliding on the guide rod (3).

5. The light-shielding device for a fundus camera as described in claim 4, characterized in that, The clamps (4) are in two sets, and the two sets of clamps (4) are respectively installed on both ends of the guide rod (3). Each set of clamps (4) consists of two sets of first clamps (5), second clamps (6), bolts (7) and two sets of silicone pads (8). The first clamps (5) are installed on the guide rod (3), the second clamps (6) are slidably installed on the first clamps (5), the bolts (7) are threaded on the second clamps (6) and the first clamps (5), and the two sets of silicone pads (8) are respectively installed on the first clamps (5) and the second clamps (6).

6. The light-shielding device for a fundus camera as described in claim 4, characterized in that, The guide rod (3) is made of elastic stainless steel.

7. The light-shielding device for a fundus camera as described in claim 1, characterized in that, The limiting structure includes Velcro A (9) and Velcro B (10). Velcro A (9) has an adhesive strip at the bottom and is attached to the fundus camera. Velcro B (10) is installed on the other end of the light-blocking cloth (1) to facilitate the removal of the light-blocking cloth (1).

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