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  • 颅脑脊髓损伤撞击仪(全自动三维定位).jpg

Brain and spinal cord injury impact instrument (automatic three-dimensional positioning)


The spinal cord striker is designed to apply repeatable standard spinal impact to rats and mice. It was developed by Beijing Zhongshi Technology. It is part of the rodent spinal cord injury model. So far, the product has formed a preliminary market.

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Description Parameters Resources

The spinal cord striker is designed to apply repeatable standard spinal impact to rats and mice. It was developed by Beijing Zhongshi Technology. It is part of the rodent spinal cord injury model. So far, the product has formed a preliminary market.
 

1. Pneumatic pure electric and stable chassis design, no jitter when the impact head hits, precise strike, stability, high repeatability, and low mortality;
2. It can meet the requirements of mild, moderate and severe traumatic brain injury in small animals weighing 10g-1kg;
3. Automatically calibrate the impact zero interface to reduce tedious manual operations; the three-dimensional coordinate value can be zeroed at any point, which is convenient for positioning. Tissue removal procedure, 2 kinds of shape options: square or circle, length, width or diameter parameters (input range: 0~20mm) and depth (input range: 0~20mm), support 2 kinds of needle sizes 27G, 30G, 6 pieces The density coefficient of the gradient can be set to 1-6, 5 moving speeds of AP axis and ML axis can be selected, and 8 moving speeds of DV axis can be selected; the arbitrarily defined three-dimensional direction is fully automatic. The coordinates of the locator are integrated with the brain map, the brain map version is the second version of the mouse, the sixth version of the rat, E17.5, P0 and P6 mouse brain development map Paxinos Halliday Watson Koutcherov Wang, the user can choose the brain map version, choose After the version is determined, the version information of the brain map will be displayed; the software operation interface can be freely switched between Chinese and English, and the impact position and the brain map will be displayed;
4. There are two vertical descent rate options for automatic calibration to meet the rate requirements of different positions such as long-distance and short-distance, which is easy to adjust and control;
5. Magnetic sensor, with a resolution of ≤0.2μm, measures and feedback the speed, depth and dwell time of the impact, and the results are traceable, ensuring the accuracy, repeatability and stability of the rat model of traumatic brain injury;
6. Aluminum alloy oxidation body frame, special SUS304 stainless steel cylinder is used inside, which is not easy to rust, deform, fade, and has a long service life;
7. A variety of cylindrical flat-head stainless steel chamfering treatments are available, and the number of impact heads is 1 mm, 2 mm, 3 mm, and 4 mm each;
8. The blowing air pressure adjustment range is 0-1Mpa, the resolution is 0.02Mpa, the maximum blowing speed is 7m/s, the speed range is 0.5~7m/s, the resolution is ≤0.1m/s, and the error is ≤±0.2m/s;
9. The dwell time and strike depth can be controlled, the depth is 0~5.00mm, the resolution is ≤0.01mm, the repeatability is ≤±0.02mm; the pressing dwell time: 0.01-9.99s, the step size is 0.01s, LED display;
10. The special gas source of the automatic brain and spinal cord injury system can be used to supply gas to ensure the safety of the laboratory. It contains a special gas aviation quick plug, and the gas source pressure requirement is 0-1Mpa;
11. The software has the function of rights management. The administrator assigns user accounts and manages user rights; it adopts microcomputer digital control, electric operation, and precise advance and retreat. The up and down, left and right, front and rear movement range of the operating arm is greater than or equal to 120mm, with a high-precision screw, the running accuracy is 1μm; the locator movement control function, 4 control methods: PC terminal software interface arrow control; PC terminal automatically moves after inputting the target coordinate position to the target coordinates; the micro-operation platform can precisely control the movement of the locator, the button can control the continuous movement, the micro-operation knob performs 1μm displacement every 18° rotation; the keys on the keyboard control the movement of the locator;
12. Real-time display of ML, AP, DV three-dimensional coordinate value changes. Locator movement speed adjustment function The locator movement speed adjustment function, in the PC software interface, the corresponding positions of the three axes can respectively input the movement speed for adjustment, among which the AP axis and the ML axis can choose 5 kinds of movement speeds: 2.00 mm/s, 1.00 mm/s, 0.50 mm/s, 0.20 mm/s, 0.10 mm/s; 8 moving speeds of the DV axis are optional: 2.00 mm/s, 1.00 mm/s, 0.50 mm/s, 0.20 mm/s, 0.10 mm/ s, 0.05 mm/s, 0.01 mm/s, 0.005 mm/s, 0.001 mm/s; on the micro-manipulation end, the movement speed of the three axes can be adjusted in a certain step by pressing the keys;
13. Automatic operation or step operation in any direction. The hollow cup motor and the screw rod of the host machine are seamlessly welded to eliminate the error caused by the gap between the motor gears when the motor moves in reverse. It can receive or output TTL signals, such as receiving TTL signal triggers. The automatic brain stereotaxic instrument moves automatically according to the set program, or outputs a TTL signal when it reaches a specific position; it adopts SUS304 stainless steel metal gear reducer, which has better mechanical strength and higher precision than traditional plastic gear reducers;
14. The three-dimensional direction can move forward and backward freely. When the user finds and sets the Bregma/Lambda point, the computer interface can display the brain map and the position of the probe, and can display the movement process in real time; automatic craniotomy procedure, 2 kinds of shape options: square or circle, length, width or diameter parameters (input Range: 0~20mm) and depth (input range: 0~20mm), multi-point program setting, the user can manually input or select up to 10 coordinates on the brain map, and can choose to run automatically or start running after a signal is triggered. It can be set whether to output TTL signal after the locator reaches the target point, and the user can set the dwell time at each point;
15. The three-dimensional movement control range is greater than or equal to 120mm;
16. The precision is 0.001mm, and the hollow cup motor is adopted. The hollow cup motor adopts closed-loop control to avoid accumulated mechanical errors. The response speed is fast, the precision is high, the reduction ratio is high, and the speed can be adjusted in a large space. Solve a series of problems such as open-loop control of stepper motor, large mechanical cumulative error, slow response, and small space for speed adjustment;
17. The running speed is adjustable, which can run fast and very slow, which is convenient for quick positioning and fine adjustment;
18. Optional matching accessories can be used to fix the head of animals in the case of traumatic brain injury in rats and mice. Rotation adapter for rats and mice: rotation angle 60° (-30°~﹢30°), 0-20mm height adjustment.
19. Using the network power adapter DC 24V power supply, safe and effective;
20. Working temperature: room temperature 5°~40°C (50°~104°F), relative humidity 20~80%, keep the room ventilated;
21. Animal platform size 380mm*255mm

This parameter is the basic parameter of the equipment, please contact our company for specific parameters

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