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Surgical Products : Stereotaxic Instruments        Ask The Expert

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Stereotaxic CCI Impactor

Impact One™ Stereotaxic Impactor for CCI

Product: #39463920

Product Overview:
The Benchmark Stereotaxic Impactor is unique among Controlled Cortical Impact (CCI) instruments in that the actuator part mounts directly on a stereotaxic instrument. This allows an unprecedented degree of reproducablity of the position and direction of impact. Use the sterotaxic manipulator to achieve the desired location and angle to impact skull, brain tissue, or spinal cord. Or impact anywhere as a stimulator for tactile evoked potential studies.

The electromagnetic force applied can impart impact velocities from 1.5 m/s to 6 m/s. Preset the digital display to the desired impact velocity, set the dwell time (time the impactor remains extended and in contact, before retracting) on a thumbwheel switch and position the impactor to the desired impact location and angle. Touch the probe down while extended, the contact sensor will indicate the exact point of contact for reproducible results. Retract the impactor tip, lower the impactor by the amount of the desired impact depth, and press the switch. The tip will accelerate down to the extended distance, reaching the preset velocity by the end of the travel, and remain forced there for the dwell time, then retract automatically.

Comes with a selection of 2 inch long impactor tips with sizes (1,1.5, 2, 3 and 5 mm). Custom sizes can be prepared.

Fully instrumented studies in the lab found a much greater reproducibilty over a popular pneumatic model that tended to overshoot by varilable amounts.

Reliable and consistent impact velocity, controlled and reproducible position and angle of impact, and controlled dwell time are the design features of this instrument.

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    Journal Citations

    • Electromagnetic Controlled Cortical Impact Device for Precise, Graded Experimental Traumatic Brain Injury. David L. Brody, Christine Mac Donald, Chad C. Kessens, Carla Yuede, Maia Parsadanian, Mike Spinner, Eddie Kim, Katherine E. Schwetye, David M. Holtzman, Philip V. Bayly. Journal of Neurotrauma Apr 2007, Vol. 24, No. 4 : 657 -673
    • Detection of traumatic axonal injury with diffusion tensor imaging om a mouse model of traumatic brain injury. C.L. Mac Donald, K. Dikranian, S.K. Song, P.V. Bayly, D.M. Holtzman, & D.L. Brody Experimental Neurology 205: 116-117, 2007
    • The Novel Apolipoprotein E–Based Peptide COG1410 Improves Sensorimotor Performance and Reduces Injury Magnitude following Cortical Contusion Injury. Michael R. Hoane, Jeremy L. Pierce, Michael A. Holland, Nicholas D. Birky, Tan Dang, Michael P. Vitek, Suzanne E. McKenna. Journal of Neurotrauma. Jul 2007, Vol. 24, No. 7: 1108-1118
    • Spatiotemporal evolution of apoptotic neurodegeneration following traumatic injury to the developing rat brain. Philip V. Bayly, Krikor T. Dikranian, Erin E. Black, Chainllie Young, Yue-Qin Qin, Joann Labruyere and John W. Olney. Brain Research 1107: 70-81, 2006
    • The effects of intrathecal hypotension on tissue perfusion and pathophysiological outcome after acute spinal cord injury. Horn, Eric M., Nicholas Theodore, Rachid Assina, Robert F. Spetzler, Volker K. H. Sonntag, and Mark C. Preul. Journal of Neurosurgery 25: 2008
    • COG1410 Improves Cognitive Performance and Reduces Cortical Neuronal Loss in the Traumatically Injured Brain. Michael R. Hoane, Nicholas Kaufman, Michael P. Vitek, Suzanne E. McKenna. Journal of Neurotrauma. January 2009, 26(1): 121-129
    • Variation in chronic nicotinamide treatment after traumatic brain injury can alter components of functional recovery independent of histological damage. Michael R Hoane, Jeremy L Pierce, Nicholas A Kaufman, and Jason E Beare. Oxid Med Cell Longev. 2008 Oct–Dec; 1(1): 46–53.