Platform structure for rat visual movement detection and visual movement detection device

Abstract

The utility model relates to the technical field of animal visual function detection, in particular to a platform structure for rat visual motion detection and a visual motion detection device.The platform structure comprises a supporting structure which is arranged in the center of a detection box body and extends upwards from the bottom to a preset height; the platform structure is connected to the top of the supporting structure; the platform structure comprises a base and a handrail component, and the base is configured to be in a disc shape. According to the platform structure provided by the utility model, the bulge is arranged in the center of the platform, so that the activeness of a rat is increased, the testable time of the rat is prolonged, the detection is facilitated, the size of the platform is slightly larger than the body length of the rat, the rat can flexibly turn on the platform, and a more accurate detection result can be obtained; the edge of the platform is provided with the vertical rod structures which fluctuate in a staggered manner, so that the rats are not easy to climb over the fence on the basis of not influencing the observation of displayed patterns by the rats, and the detection process is ensured to be carried out smoothly.

Description

Technical Field

[0001] This utility model relates to the field of animal visual function detection technology, and more specifically to a platform structure and a visual motion detection device for rats. Background Technology

[0002] The rat optomotor test usually refers to the optomotor response test (OMR test), which is an experimental method used to assess the visual function and motor response ability of rats.

[0003] Optokinesis in rats is based on the animals' natural responses to visual stimuli, particularly their responses to moving objects. When a moving pattern stimulates an animal's visual field, the animal's eyes, head, and body naturally follow the direction of the gaze (i.e., the moving object) to reduce movement of the image formed on the retina. This compensatory head-body movement (OMR) or eye-movement response (OKR) is persistent and can therefore be used to measure visual acuity in rats.

[0004] In the test, rats were placed on a platform in the center, surrounded by rotating striped patterns or other visual stimuli. The rats were required to observe and follow these moving patterns to produce corresponding motor responses. Researchers recorded and analyzed the animals' responses to assess their visual function. However, during the scheduled testing period, some rats jumped off the platform, preventing the test from being completed. Summary of the Invention

[0005] To address the technical problems existing in rat visual-motor detection in the prior art, the first aspect of this utility model proposes a platform structure for rat visual-motor detection, comprising:

[0006] The support structure is located in the center of the testing chamber and extends upwards from the bottom to a predetermined height.

[0007] The platform structure is connected to the top of the supporting structure;

[0008] The platform structure includes a base and a railing component. The base is constructed in a disc shape, and the upper surface of the base has a central protrusion and a flat portion on the outer periphery. The railing component is located on the edge of the base and is configured to include multiple vertical bar structures with different heights.

[0009] The maximum height of the vertical rod structure is defined as Hmax, and the minimum height of the vertical rod structure is defined as Hmin. The maximum height of the vertical rod structure Hmax is less than 4cm, and the minimum height of the vertical rod structure Hmin is more than 1.5cm.

[0010] Preferably, the upper ends of the multiple vertical rod structures exhibit a periodic undulating state along the circumferential direction.

[0011] Preferably, the multiple vertical rod structures are divided into short vertical rods, medium vertical rods, and tall vertical rods. The height of the tall vertical rod is greater than the height of the medium vertical rod, and the height of the medium vertical rod is greater than the height of the short vertical rod. A vertical rod unit is formed by a sequence of short vertical rod - medium vertical rod - tall vertical rod - medium vertical rod. The multiple vertical rod structures are composed of several vertical rod units.

[0012] Preferably, the spacing between the plurality of vertical rod structures is L, wherein L is greater than 1.5 cm.

[0013] Preferably, the railing component further includes a fence connected to the edge of the base, and the vertical bar structure connected to the top of the fence.

[0014] Preferably, the fence is constructed as a ring structure and has a continuous and smooth inner wall surface.

[0015] Preferably, the raised portion is configured such that its height gradually decreases from the center of the base towards the edge.

[0016] Preferably, the diameter of the base is 7~12cm.

[0017] Preferably, the support structure includes a support base and a support rod connected above the support base, the support rod being detachably connected to the base.

[0018] The second aspect of this utility model provides a technical solution: a visual motion detection device, comprising:

[0019] The detection chamber has a display device on its side wall, which is used to display a predetermined pattern;

[0020] The above-mentioned platform structure for rat visual-motor detection;

[0021] The detection component, located above the detection chamber, is used to acquire images of the rat's movements within the platform structure.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] The platform structure proposed in this utility model features a central protrusion that increases the activity level of the rats, extends the testing time, and facilitates the detection process. The platform's size is slightly larger than the rat's body length, allowing the rats to maneuver flexibly and obtain more accurate test results. The platform's edges are equipped with staggered vertical bars that prevent the rats from easily climbing over the fence without affecting their observation of the displayed pattern, thus ensuring the smooth progress of the testing process. Attached Figure Description

[0024] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of the structure of the visual motion detection device shown in this utility model;

[0026] Figure 2 This is a schematic diagram of the platform structure shown in this utility model being located inside the detection box;

[0027] Figure 3 This is a schematic diagram of the platform structure for rat visual-motor detection shown in this utility model. Detailed Implementation

[0028] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.

[0029] Combination Figure 2 As shown, the first aspect of this utility model proposes a platform structure for rat visual-motor detection, including a support structure 210 and a platform structure 220, wherein the support structure 210 supports the platform structure 220 at a predetermined height within the detection chamber 100.

[0030] The support structure 210 is located in the center of the detection box 100 and extends upward from the bottom to a predetermined height (more than 35cm from the bottom of the equipment). The platform structure 220 is connected to the top of the support structure 210.

[0031] like Figure 3 As shown, the platform structure 220 includes a base 221 and a railing component. The base 221 is constructed in a disc shape, and the upper surface of the base 221 has a centrally located protruding portion 21 and a flat portion 22 on the outer periphery.

[0032] In this way, when the rat is on the base 221, it will not fall asleep on the base 221 because the upper surface is too flat. By setting the central part as a raised part 21, the activity of the rat can be improved and the testable time of the rat can be extended.

[0033] Furthermore, the railing component is located at the edge of the base 221, and the railing component is configured to include multiple vertical bar structures 223, the multiple vertical bar structures 223 having different heights.

[0034] The maximum height of the vertical rod structure 223 is defined as Hmax, and the minimum height of the vertical rod structure 223 is defined as Hmin. The maximum height Hmax of the vertical rod structure 223 is lower than the height of the rat's head when standing (about 4 cm), and the minimum height Hmin of the vertical rod structure 223 is higher than the height of the rat's head when lying down (about 1.5 cm).

[0035] In this way, by setting the vertical rod structure 223 to different heights, it not only provides a certain degree of obstruction but also makes it difficult for rats to use it to climb over, while not affecting the rats' line of sight, which is beneficial for the detection process and the acquisition of detection results.

[0036] In an optional embodiment, the upper ends of the plurality of vertical rod structures 223 are in a periodic undulating state along the circumferential direction.

[0037] Combination Figure 3 As shown, specifically, the multiple vertical rod structures 223 are divided into short vertical rods, medium vertical rods, and tall vertical rods. The height of the tall vertical rod is greater than the height of the medium vertical rod, and the height of the medium vertical rod is greater than the height of the short vertical rod. A vertical rod unit is formed by short vertical rod - medium vertical rod - tall vertical rod - medium vertical rod. The multiple vertical rod structures 223 are composed of several vertical rod units.

[0038] Thus, the maximum height of the multiple vertical bars 223 is in a regular undulating state, making it difficult for rats to climb over the undulating bars and also facilitating their exploration on the platform.

[0039] Furthermore, the spacing between the multiple vertical rod structures 223 is L, where L is greater than the width of a rat's head (approximately 1.5 cm).

[0040] In this way, the gap formed between the vertical rod structures 223 allows the rat to see the external pattern in the center of the platform without causing significant obstruction or interference to the pattern during the detection process, thus enabling the rat's visual-motor detection to proceed smoothly.

[0041] In an optional embodiment, the railing component further includes a fence 222 connected to the edge of the base 221, and a vertical bar structure 223 connected to the top of the fence 222.

[0042] The fence 222 is constructed as a ring structure and has a continuous and smooth inner wall surface.

[0043] In a specific embodiment, the fence 222 and the base 221 are designed to be connected by a plug-in method. The fence 222 has multiple plug holes on its top, and the vertical rod structure 223 is also connected to the fence 222 by a plug-in method.

[0044] In an optional embodiment, the protrusion 21 is configured to gradually decrease in height from the center of the base 221 toward the edge.

[0045] This prevents the rat from lying down stably on the base 221, forcing the rat to move on the base 221 to maintain its activity level, which can prolong the testable time of the rat and make the rat more cooperative in the test.

[0046] In an optional embodiment, the diameter of the base 221 is larger than the length of the rat (7-12 cm). The rat can turn and lie prone normally on the base 221, making it easier to determine the rat's posture.

[0047] In the above embodiments, the support structure 210 includes a support base 211 and a support rod 212 connected above the support base 211, and the support rod 212 is detachably connected to the base 221.

[0048] Thus, the support rod 212 and the base 221 are designed to be detachable, and the appropriate platform structure 220 can be replaced according to the size of the test animal to meet different testing needs.

[0049] The second aspect of this utility model proposes a technical solution: a visual motion detection device, including a detection box 100, a platform structure 200, and a detection component 300. The side wall of the detection box 100 is provided with a display device for displaying a predetermined pattern.

[0050] The detection box 100 can be square or round. When the detection box 100 is square, display devices are provided on all four sides, for example... Figure 2 As shown, the left side is the first display device 101, the right side is the second display device 102, the front is the third display device 103, and the rear is the fourth display device (not shown). The display devices can be LED displays, used to display the striped patterns or other visually stimulating patterns used in the detection.

[0051] The platform structure 200 is the aforementioned platform structure 200 for rat visual-motor detection. It is set inside the detection box 100. The rat to be tested is placed on the platform structure 200 and will make certain movements according to the pattern displayed on the display device, such as head rotation, eye rotation, and trunk rotation.

[0052] The detection component 300 is positioned above the detection chamber 100 and is used to acquire images of the rat's activities within the platform structure 200. Examples include the rat's head rotation, eye movement, and trunk rotation, which are then recorded.

[0053] Thus, the visual function and motor response ability of rats can be assessed using the aforementioned detection device.

[0054] In conjunction with the above embodiments, the platform structure proposed by this utility model has a central protrusion that increases the activity of the rats, prolongs the testing time, and facilitates the detection process. The platform size is slightly larger than the rat's body length, allowing the rat to turn flexibly on the platform, which is conducive to obtaining more accurate test results. The platform edge is provided with an undulating vertical bar structure, which makes it difficult for the rats to climb over the fence without affecting the rats' observation of the display pattern, thus ensuring the smooth progress of the detection process.

[0055] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A platform structure for rat optomotor detection, characterized by, include: The support structure (210) is located in the center of the detection box (100) and extends upward from the bottom to a predetermined height; The platform structure (220) is connected to the top of the support structure (210); The platform structure (220) includes a base (221) and a railing component. The base (221) is constructed in a disc shape. The upper surface of the base (221) is provided with a central protrusion (21) and a flat portion (22) on the outer periphery. The railing component is disposed on the edge of the base (221) and is configured to include multiple vertical bar structures (223) with different heights. Among them, the highest height of the vertical rod structure (223) is defined as Hmax, the lowest height of the vertical rod structure (223) is defined as Hmin, the highest height Hmax of the vertical rod structure (223) is less than 4cm, and the lowest height Hmin of the vertical rod structure (223) is more than 1.5cm.

2. The platform structure for rat visual detection according to claim 1, characterized in that, The upper ends of the multiple vertical rod structures (223) exhibit a periodic undulating state along the circumferential direction.

3. The platform structure for rat visual detection according to claim 1, characterized in that, The multiple vertical bar structure (223) is divided into short vertical bars, medium vertical bars and tall vertical bars. The height of the tall vertical bar is greater than the height of the medium vertical bar, and the height of the medium vertical bar is greater than the height of the short vertical bar. The short vertical bar-medium vertical bar-tall vertical bar-medium vertical bar form a vertical bar unit. The multiple vertical bar structure (223) is composed of several vertical bar units.

4. The platform structure for rat visual detection according to claim 1, wherein, The spacing between the plurality of the vertical rod structures (223) is L, where L is greater than 1.5 cm.

5. The platform structure for rat visual detection according to any one of claims 1-4, wherein, The railing component also includes a fence (222) connected to the edge of the base (221), and a vertical bar structure (223) connected to the top of the fence (222).

6. The platform structure for rat visual detection according to claim 5, characterized in that, The fence (222) is constructed as a ring structure and has a continuous and smooth inner wall surface.

7. The platform structure for rat visual detection according to claim 1, wherein, The protruding portion (21) is configured such that its height gradually decreases from the center of the base (221) to the edge.

8. The platform structure for rat visual detection according to claim 1, wherein, The diameter of the base (221) is 7~12cm.

9. The platform structure for rat visual-motor detection according to claim 1, characterized in that, The support structure (210) includes a support base (211) and a support rod (212) connected above the support base (211), the support rod (212) being detachably connected to the base (221).

10. A visual movement detection apparatus, characterized by comprising: include: The detection box (100) has a display device on its side wall, which is used to display a predetermined pattern; The platform structure (200) for rat visual-motor detection according to any one of claims 1-9, wherein the platform structure (200) is disposed within the detection chamber (100); The detection component (300) is positioned above the detection chamber (100) and is used to acquire images of the rat's activity in the platform structure (200).

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