Dual laser aiming device and method for animal experiments

Abstract

The application discloses a double laser aiming device for animal experiments, which comprises an experimental equipment, a bearing plate is installed at the lower side of the interior of the experimental equipment, experimental instruments are installed at the top of the bearing plate, two groups of laser emission modules for emitting one-dimensional laser fan faces are installed at the lower side of the experimental instruments, the fixed ends of the two groups of laser emission modules are installed at the lower side of the experimental instruments, the emission ends of the laser emission modules are arranged at any angle within 0-180 DEG, the laser beams of the two groups of laser emission modules intersect to form a unique aiming target, and the center of the aiming target is accurately coincident with the working axis of the experimental instruments. The application realizes non-contact high-precision positioning by the intersection of the at least two groups of laser emission modules in space and the accurate coincidence of the target and the working axis of the experimental instruments, the installation mode is flexible, the experimental operation efficiency is improved by more than 75% compared with the traditional mechanical positioning mode, and the stress reaction of experimental animals can be effectively reduced by about 40%.

Description

Technical Field

[0001] This invention belongs to the field of animal experimental equipment technology, specifically relating to a dual-laser aiming device and method for animal experiments. Background Technology

[0002] In animal medical experiments, especially in scenarios such as combat trauma simulation, surgical training, and drug efficacy evaluation, it is necessary to perform high-precision positioning operations on experimental animals to ensure that the working end of the experimental instruments can accurately act on the preset site, so as to guarantee the accuracy of experimental results and the consistency of experimental models.

[0003] Traditional animal experiment positioning often uses mechanical positioning methods, which require positioning through physical contact with components such as rulers and clamps. This method is not only cumbersome and inefficient, but also prone to causing strong stress reactions in experimental animals due to physical contact, affecting the authenticity of experimental data. At the same time, the accuracy of mechanical positioning is greatly affected by manual operation and component wear, and the deviation is significant when positioning at medium and long distances, making it difficult to meet the needs of high-precision experiments.

[0004] Existing laser positioning devices mostly use a single laser beam for indication, which can only achieve positioning in a single direction and cannot form a precise target point in space. The positioning accuracy is limited, and the laser wavelength and installation method are restricted, resulting in poor adaptability. It is difficult to adapt to the positioning requirements of experimental gun barrels of different calibers or ballistics of different heights, and cannot meet the positioning requirements of different experimental instruments and different experimental scenarios. The coaxiality error between the device and the ballistic trajectory can reach 1 to 3 mm, making it difficult to guarantee the consistency of experimental accuracy.

[0005] Therefore, there is an urgent need for a dual-laser aiming device and method for animal experiments to solve the above problems. Summary of the Invention

[0006] In response to the problems raised in the background art above, the purpose of this invention is to reduce the aiming error from 1-3mm to within 0.2mm by precisely intersecting the dual laser fan surfaces, compared with the traditional single-point laser aiming method. At the same time, it greatly reduces the difficulty of manual calibration and the stress response of experimental animals, aiming to provide a dual laser aiming device and method for animal experiments.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: A dual-laser aiming device for animal experiments includes an experimental apparatus. A support plate is mounted on the lower side of the apparatus. Experimental instruments are mounted on the top of the support plate. Two sets of laser emitting modules emitting linear laser fan-shaped beams are mounted on the lower side of the experimental instruments. The fixed ends of the two sets of laser emitting modules are mounted on the lower side of the experimental instruments. The emitting ends of the laser emitting modules are arranged at any angle within 0 to 180°. The laser beams from the two sets of laser emitting modules intersect to form a unique aiming target point. The center of the aiming target point precisely coincides with the working axis of the experimental instruments.

[0008] Furthermore, the laser emitting module can be powered by a rechargeable lithium battery, or by a 24V DC power supply from an external device, or it can be adapted to other commonly used DC power supply specifications. This structural design enables the laser emitting module to be used with a stable power supply.

[0009] Furthermore, the laser emitting module has a detachable structure, which can be directly installed in a preset position on the experimental apparatus, or installed independently in a preset position on the experimental equipment. This structural design allows for flexible adjustment according to the experimental scenario and the structure of the experimental apparatus.

[0010] Further specified, the laser emitting module adopts a linear laser module with a diffusion angle of 10° to 180°, a wavelength range of 380nm to 1600nm, and a beam width of 0.03mm to 2mm. It can form a clear fan-shaped aiming surface within a working distance of 0 to 2000mm. The arrangement range of the two sets of laser emitting modules is limited to the laser beam forming a clear aiming target point within a distance of 0 to 2000mm. This structural design can cover the entire wavelength of laser visible to the human eye, is compatible with various commercial aiming lasers on the market, meets the visual recognition needs of different experimental scenarios, and allows for the selection of laser emitting modules with different beam widths according to the positioning accuracy requirements, balancing target clarity and positioning accuracy.

[0011] Furthermore, the coaxiality deviation between the aiming target point and the working axis of the experimental instrument is strictly controlled within 0.2 mm. This structural design meets the high-precision positioning requirements of animal experiments.

[0012] Furthermore, the experimental apparatus includes gun barrels, projectile-simulating launching devices, and other animal experimental instruments. This structural design can be selected based on actual usage requirements.

[0013] A laser aiming method for a dual-laser aiming device used in animal experiments, characterized by comprising the following steps: S1: Based on the type of experimental equipment and the experimental operation scenario, select the installation method of the laser emission module, and detachably install at least two sets of laser emission modules in the preset positions of the experimental equipment or experimental devices, and connect them to the power supply structure. S2: Adjust the installation angle and spatial position of the laser emitting modules so that the laser beams emitted by each group of laser emitting modules converge at the preset operating distance to form a clear and identifiable aiming target. S3: Perform coaxial calibration between the aiming target and the working axis of the experimental instrument, and fine-tune the arrangement angle of the laser emission module to ensure that the aiming target and the working axis of the experimental instrument are precisely aligned. S4: Use the calibrated aiming point to perform non-contact positioning of the preset operation site on the experimental animal, and then perform subsequent animal experimental operations after positioning is completed.

[0014] The beneficial effects of this invention are as follows: This invention uses at least two sets of laser beams to spatially intersect and form a unique aiming target point, which precisely coincides with the working axis of the experimental instrument. The deviation does not exceed 0.2mm across the entire operating distance range of 0–2000mm, far exceeding that of traditional mechanical positioning methods. This effectively solves the problems of large long-distance deviations and accuracy being affected by manual operation and wear in traditional mechanical positioning, ensuring the accuracy of experimental results and the consistency of the experimental model. This invention employs a non-contact positioning method, eliminating the need for cumbersome mechanical scale adjustments and fixture calibrations. The positioning operation takes an average of only 15 seconds, representing an efficiency improvement of over 75% compared to traditional mechanical positioning methods (average 60 seconds). This effectively solves the problems of cumbersome and inefficient traditional positioning operations, significantly saving labor and time costs in experiments, and is suitable for large-scale animal experiments. This invention employs a completely non-contact positioning method, ensuring that neither the laser beam nor the experimental instruments come into physical contact with the experimental animals. This effectively reduces stress responses in the animals by approximately 40%, resolving the issue of abnormal physiological indicators caused by physical contact in traditional mechanical positioning. It also avoids interference with experimental data due to stress responses, fundamentally guaranteeing the authenticity of the data. Furthermore, it reduces animal struggle and injury, mitigating ethical risks associated with the experiment. This invention has a simple overall structure with no complex precision components. It is compatible with various power supply methods such as rechargeable lithium batteries and 24V DC power supplies. No professional debugging equipment is required, and experimenters can quickly get started with simple operation. The laser emission module is compatible with various commercial aiming lasers on the market. Accessories are readily available, making it suitable for large-scale promotion and use in animal experimental platforms of various universities, research institutes, and pharmaceutical R&D centers. Attached Figure Description

[0015] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 This is a schematic diagram of the front view of a dual-laser aiming device for animal experiments according to an embodiment of the present invention; Figure 2This is a schematic diagram of the main view axis side structure of a dual-laser aiming device for animal experiments according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the axial structure of a dual-laser aiming device for animal experiments according to an embodiment of the present invention, viewed from below. The symbols for the main components are explained below: Experimental equipment 1. Support plate 2. Experimental instruments 3. Laser emission module 4. Aiming target 5. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figures 1-3 As shown, the present invention provides a dual-laser aiming device for animal experiments. An experimental device 1 has a support plate 2 installed on its lower interior side. An experimental apparatus 3 is installed on top of the support plate 2. Two sets of laser emitting modules 4, each emitting a linear laser fan, are installed on the lower side of the experimental apparatus 3. The fixed ends of the two sets of laser emitting modules 4 are installed on the lower side of the experimental apparatus 3. The emitting ends of the laser emitting modules 4 are arranged at any angle within 0 to 180°. The laser beams from the two sets of laser emitting modules 4 intersect to form a unique aiming target point 5. The center of the aiming target point 5 precisely coincides with the working axis of the experimental apparatus 3.

[0018] Preferably, the laser emitting module 4 can be powered by a rechargeable lithium battery, or by a 24V DC power supply from an external device, or it can be adapted to other commonly used DC power supply specifications. This structural design can provide a stable power supply for the laser emitting module 4.

[0019] Preferably, the laser emitting module 4 has a detachable structure, which can be directly installed in the preset position of the experimental apparatus 3, or independently installed in the preset position of the experimental device 1. This structural design can be flexibly adjusted according to the experimental scenario and the structure of the experimental apparatus.

[0020] Preferably, the laser emitting module 4 adopts a linear laser module with a diffusion angle of 10° to 180°, a wavelength range of 380nm to 1600nm, and a beam width of 0.03mm to 2mm. It can form a clear fan-shaped aiming surface within a working distance of 0 to 2000mm. The arrangement range of the two sets of laser emitting modules 4 is limited to the laser beam forming a clear aiming target point within a distance of 0 to 2000mm. This structural design can cover the entire wavelength of laser visible to the human eye, is compatible with various commercial aiming lasers on the market, meets the visual recognition needs of different experimental scenarios, and allows for the selection of laser emitting modules with different beam widths according to the positioning accuracy requirements, balancing target clarity and positioning accuracy.

[0021] Preferably, the coaxiality deviation between the aiming target 5 and the working axis of the experimental apparatus 3 is strictly controlled within 0.2 mm. This structural design meets the high-precision positioning requirements of animal experiments.

[0022] Preferably, experimental apparatus 3 includes a gun barrel, a projectile-simulating launching device, and other animal experimental instruments. This structural design can be selected according to actual usage requirements.

[0023] Workflow: Install experimental apparatus 3 inside the lower side of experimental equipment 1, and on top of the support plate 2. According to the experimental scenario and the structural requirements of experimental apparatus 3, directly mount two sets of laser emitting modules 4 to the preset positions on the lower side of experimental apparatus 3. This device uses a single-line laser module with a diffusion angle of 120°, which can form a clear aiming surface within the range of 0-2000mm, or it can be independently installed in the preset positions of experimental equipment 1. After completing the installation of the fixed end of the laser emitting module 4, adjust the arrangement angle of its emitting end within the range of 0-180° to ensure that the angle arrangement range meets the requirement that the laser beam can form a clear target point within a distance of 0-2000mm. According to the characteristics of the experimental operation scenario (mobile operation / fixed operation), select a rechargeable lithium battery, an external 24V DC power supply, or other commonly used DC power supply for laser emission. Module 4 is powered by a multi-specification compatible power supply structure that provides a stable power input to the laser emission module 4. Then, the laser emission module 4 is activated, and the two sets of laser emission modules 4 emit laser beams with set wavelengths and beam widths. Utilizing the linear propagation characteristics of lasers, due to the different angles of the two emission ends, the two non-parallel laser beams converge within a spatial range of 0–2000 mm, forming a unique and clearly identifiable aiming target point 5. The arrangement angle of the emission ends of the laser emission modules 4 is finely adjusted to precisely correct the spatial position of the aiming target point 5, ensuring that the geometric center of the aiming target point 5 is completely coaxially aligned with the working axis of the experimental apparatus 3, and strictly controlling the coaxiality deviation between the two within 0.2 mm. This completes the calibration, and the calibrated aiming target point 5 is used for non-contact positioning of the preset operating sites on the experimental animal.

[0024] in, Figure 1 , Figure 2 and Figure 3 In the diagram, the straight line emitted by laser emitting module 4 is the center line of the one-line laser fan, and the actual fan diffusion angle is 120°.

[0025] A laser aiming method for a dual-laser aiming device used in animal experiments, characterized by comprising the following steps: S1: Based on the type of experimental equipment and the experimental operation scenario, select the installation method of the laser emission module, and detachably install at least two sets of laser emission modules 4 in the preset positions of the experimental equipment 3 or experimental device 1, and connect the power supply structure. S2: Adjust the installation angle and spatial position of the laser emitting module 4 so that the laser beams emitted by each group of laser emitting modules 4 converge at the preset operating distance in the experiment to form a clear and identifiable aiming target point 5; S3: Perform coaxial calibration between the aiming target 5 and the working axis of the experimental instrument 3, and fine-tune the arrangement angle of the laser emission module 4 so that the aiming target 5 and the working axis of the experimental instrument 3 are precisely aligned. S4: Use the calibrated aiming point 5 to perform non-contact positioning of the preset operation site on the experimental animal, and then perform subsequent animal experimental operations after positioning is completed. Example

[0026] This embodiment describes a dual-laser aiming device installed on the barrel of an experimental gun, suitable for ballistic positioning experiments simulating animal combat trauma. Two sets of 650nm laser emission modules 4 are selected, with a laser beam width set to 0.1mm. These modules use CR2032 button batteries as their power supply and are directly integrated into their housings. The two sets of laser emission modules 4 are detachably installed at the orthogonal X-axis and Y-axis positions at the front end of the experimental gun barrel using bolts, allowing the two laser beams to be emitted and converge in the same horizontal plane to form the aiming target. By fine-tuning the module angles, the target point is calibrated to precisely coincide with the Z-axis (working axis) of the projectile trajectory on the experimental gun barrel.

[0027] This embodiment uses a single-line laser module with a fan-shaped diffusion angle of 120°, which can form a clear aiming surface within the range of 0 to 2000 mm.

[0028] Experimental test results: Based on the 120° fan-shaped laser module and using a dial gauge, the deviation between the target point and the ballistic axis was 0.19 mm within a distance range of 0–2000 mm, which is controlled within 0.2 mm. When using this device for ballistic positioning, the average positioning operation time for a single experimental animal was 12 seconds, which is 80.6% more efficient than the traditional mechanical positioning method. The fluctuation range of the experimental animals' heart rate and blood pressure was reduced by 42% compared with the traditional positioning method, and the stress response was significantly reduced. Example

[0029] This embodiment is a dual-laser aiming device independently installed on experimental equipment, suitable for ballistic positioning calibration in animal experiments. Two sets of 650nm red laser emitting modules 4 are selected, with the laser beam width set to 0.1mm. The laser emitting module 4 uses a 24V DC power supply provided by the experimental equipment as its power supply structure. The power supply structure is independently fixed to the side wall of the experimental equipment and connected to the laser emitting module through flexible wires. The two sets of laser emitting modules 4 are independently and detachably installed on the top bracket inside the experimental equipment by bolts. The module can be adjusted in the range of 0 to 180° so that the laser beams converge at a standard working distance of 550mm to form the aiming target point 5. The aiming target point 5 is precisely aligned with the Z-axis (working axis) of the simulated projectile launcher's trajectory.

[0030] Experimental Test Results: This embodiment uses the same 120° fan-shaped laser module as in Embodiment 1, and verifies the positioning accuracy across the entire working distance on independently installed experimental equipment. Traditional point lasers are affected by installation offset and parallax, and the aiming deviation typically fluctuates between 1.2mm and 3.7mm within the range of 0-2000mm, with the deviation becoming more significant at greater distances. In contrast, the aiming point of this device is stably controlled within 0.2mm of the ballistic axis, improving accuracy by 5-17 times. At the same time, the single aiming operation time is reduced from 5 seconds to 1 second, increasing efficiency by 80%, and the frequency of stress responses in experimental animals is also reduced by 60%. Example

[0031] This embodiment is a magnetic quick-release dual-laser aiming device, suitable for ballistic positioning experiments with experimental gun barrels of different calibers. It employs two sets of 650nm red 120° fan-shaped laser emitting modules, with a laser beam width of 0.1mm, powered by A3 button batteries. These modules are integrated into the module housing, and a 3mm thick, powerful neodymium magnet is embedded in the back of each module, providing a 3N attraction force, enabling quick and easy detachment and installation of the laser emitting modules onto the metal experimental gun barrel. The two laser emitting modules are magnetically attached to the X and Y sides of the front end of the experimental gun barrel, respectively. No strict 90-degree orthogonal calibration is required; simply fine-tuning the module angles ensures that the two laser beams converge at 30cm from the gun barrel exit, forming a 0.1mm wide crosshair aiming point. Furthermore, the coaxiality deviation between the target point and the ballistic Z-axis (working axis) is stably controlled within 0.2mm.

[0032] Experimental test results: Using a dial indicator, 10 sets of repeated tests were completed on each of the eight commonly used calibers of experimental gun barrels (2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, and 9mm). The results showed that the maximum deviation between the target point and the ballistic axis was 0.19mm, which fully meets the experimental accuracy requirements. This structure is ready to use immediately after installation, which can reduce the calibration preparation time of at least 3 minutes in the traditional aiming method to less than 0.5 minutes, a reduction of 83%. At the same time, the aiming accuracy is improved by 75% compared with the traditional manual method, and it can be perfectly adapted to experimental gun barrels of different calibers.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A dual-laser aiming device for animal experiments, characterized in that: The experimental device (1) includes a support plate (2) installed on the lower side of the interior of the experimental device (1). The experimental device (1) has an experimental apparatus (3) installed on the top of the support plate (2). Two sets of laser emitting modules (4) emitting a line-shaped laser fan are installed on the lower side of the experimental apparatus (3). The fixed ends of the two sets of laser emitting modules (4) are installed on the lower side of the experimental apparatus (3). The emitting ends of the laser emitting modules (4) are arranged at any angle within 0 to 180°. The laser beams of the two sets of laser emitting modules (4) intersect to form a unique aiming target point (5). The center of the aiming target point (5) is precisely coincident with the working axis of the experimental apparatus (3).

2. The dual-laser aiming device for animal experiments according to claim 1, characterized in that: The laser emitting module (4) can be powered by a rechargeable lithium battery or by a 24-volt DC power supply provided by an external device, or it can be adapted to other commonly used DC power supply specifications.

3. The dual-laser aiming device for animal experiments according to claim 2, characterized in that: The laser emission module (4) is a detachable structure and can be directly installed in the preset position of the experimental instrument (3) or independently installed in the preset position of the experimental equipment (1).

4. A dual-laser aiming device for animal experiments according to claim 3, characterized in that: The laser emitting module (4) adopts a line laser module with a diffusion angle of 10° to 180°, a wavelength range of 380nm to 1600nm, and a beam width of 0.03mm to 2mm. It can form a clear fan-shaped aiming surface within a working distance of 0 to 2000mm. The arrangement range of the two sets of laser emitting modules (4) is limited to the laser beam being able to form a clear aiming target point within a distance of 0 to 2000mm.

5. A dual-laser aiming device for animal experiments according to claim 4, characterized in that: The coaxiality deviation between the aiming target (5) and the working axis of the experimental instrument (3) is strictly controlled within 0.2 mm.

6. A dual-laser aiming device for animal experiments according to claim 5, characterized in that: The experimental apparatus (3) includes a gun barrel, a projectile launching device, and other animal experimental operating instruments.

7. A laser aiming method based on the dual laser aiming device for animal experiments according to any one of claims 1 to 6, characterized in that: Includes the following steps: S1: Select the installation method of the laser emission module according to the type of experimental instrument and the experimental operation scenario. Install at least two sets of laser emission modules (4) in the preset position of the experimental instrument (3) or experimental equipment (1) and connect the power supply structure. S2: Adjust the installation angle and spatial position of the laser emitting module (4) so ​​that the laser beams emitted by each group of laser emitting modules (4) intersect at the preset operating distance to form a clear and identifiable aiming target (5). S3: Perform coaxial calibration between the aiming target (5) and the working axis of the experimental instrument (3), and fine-tune the arrangement angle of the laser emission module (4) so ​​that the aiming target (5) and the working axis of the experimental instrument (3) are precisely aligned. S4: Use the calibrated aiming point (5) to perform non-contact positioning of the preset operation site of the experimental animal, and perform subsequent animal experimental operations after positioning is completed.

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