What is the 68099Ⅱ Precise Impactor?

The 68099Ⅱ Precise Impactor from RWD Life Science is an advanced controlled cortical impact (CCI) device designed for traumatic brain injury (TBI) and spinal cord injury (SCI) modeling in basic medical research. Combining pneumatic and electric control with automatic zero calibration, it delivers highly accurate, reproducible impacts to cortical and spinal cord tissue — critical for generating consistent injury models across experimental cohorts.

The system features a 4.3-inch color LCD touch screen with an intuitive user interface, making setup and operation straightforward. A unique sensor automatically detects the zero-hit interface before each impact, eliminating the manual zeroing process and significantly reducing human error. Standard cylindrical flat-head hammers in five diameters (1.3, 2, 3, 4, and 5 mm) are available, enabling both focal and widespread injury models in mice and rats.

Key Features

• Pneumatic + Electric Dual Control: A stable chassis design combines pneumatic delivery with electric precision control, producing clean, vibration-free impacts with high repeatability across experiments.
• Automatic Zero Calibration: An integrated sensor automatically detects the cortical surface before each impact, eliminating tedious manual zeroing and reducing inter-experiment variability.
• 4.3″ Color Touch Screen Interface: Wide-angle LCD display with a user-friendly software interface; sound alarms and intelligent text prompts guide the user and flag faults in real time.
• Precise Parameter Control: Impact depth (0.01 mm precision), velocity (0.50–5.60 m/s, precision 0.10 m/s) and dwell time (0.00–5.00 s) are all fully configurable, enabling fine-grained injury severity titration.
• High Precision Rotating Adapter: Enables adjustment of levelness, inclination, and center-axis alignment of the animal’s head, ensuring optimal positioning for reproducible impact delivery.
• Spinal Cord Adapter: An optional spinal cord adapter provides stable vertebral fixation, extending the impactor’s utility beyond brain TBI to spinal cord injury modeling.
• Multiple Hammer Sizes: Five cylindrical flat-head hammers (1.3, 2, 3, 4, and 5 mm diameter) accommodate a range of injury footprints across species and severity levels.