Surgical Monitor for Detection of Spinal Cord Injury

Award Information
Agency:
Department of Health and Human Services
Amount:
$174,984.00
Program:
SBIR
Contract:
1R43NS045407-01
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
N/A
Award Year:
2003
Phase:
Phase I
Agency Tracking Number:
NS045407
Solicitation Topic Code:
N/A
Small Business Information
INFINITE BIOMEDICAL TECHNOLOGIES, LLC
INFINITE BIOMEDICAL TECHNOLOGIES, LLC, 2850 N CHARLES ST, STE 100, BALTIMORE, MD, 21218
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 ANANTH NATARAJAN
 (626) 284-0077
 ananth@i-biomed.com
Business Contact
Phone: (410) 889-8011
Research Institution
N/A
Abstract
DESCRIPTION (provided by applicant): Somatosensory evoked potential (SSEP) monitoring during spinal surgery has been associated with a 60% reduction in paraplegia. However, subjective interpretation of signals is not always accurate, and a significant learning curve has been demonstrated. Therefore, we propose the development and testing of innovative quantitative signal processing algorithms, focused on the detection of injury. In our Phase I effort, we will use adaptive Fourier analysis of SSEPs to evaluate parametric changes in the signal, and correlate the results with injury. We will further develop a spectral coherence analysis approach that results in an index of injury we call the Linearity Index. The injury detection algorithm will then be validated using an established rat model of graded spinal cord injury. Electrophysiological measurements will be performed by an expert neuroelectrophysiologist. We will then critically examine the problems of false-positives and false-negatives during SSEP monitoring, as well as study timely detection of spinal cord injury at various spinal compression ratios. If we are successful, we envision a Phase II focused on clinical validation of the device, improved noise-immunity, and investigation of human-subject specific alarm threshold criteria. It is our long-term goal to see the device used as a rapid, accurate sentry for detection of spinal cord compromise during high-risk surgeries.

* information listed above is at the time of submission.

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