MODEL AND APPARATUS FOR PREDICTING BRAIN TRAUMA FROM APPLIED FORCES TO THE HEAD USING PRE-COMPUTED PRESSURE AND STRAIN ATLASES VIA SUPERPOSITION AND INTERPOLATION

摘要

A system for evaluating head injury or personal protective systems uses instrumented helmets or instrumented dummies to transmit accelerometer readings to a computing system having code to determine impact accelerations. The code reads and interpolates separately for pressure and strain between precomputed simulation results nearest the impact in a database of precomputed head impact model simulation results, then combines these to give a combined result. In embodiments, the precomputed result includes strain on neural tracts, a pressure map, or both strain and pressure map. A method of evaluating an impact includes transmitting accelerometer readings from instrumented helmets or dummies to a computing system upon impact; determining angle and acceleration of the impact from the readings; reading and interpolating between precomputed simulation result in the database of strain and pressure simulation results nearest in angle and acceleration to the impact; and displaying information from the simulation.

主权项

1. A system for evaluating head injury comprising:
an instrumented headgear configured to transmit accelerometer readings to a computing system; the computing system configured with machine readable code to determine angle and acceleration of an impact from the accelerometer readings; the computing system configured with machine readable code to determine a suspicious impact by comparing the angle and acceleration of the impact to thresholds; a database (pcBRA) of precomputed brain impact model simulation results, the database of precomputed brain impact model simulation results comprising a pressure portion (pcBRA-pressure) comprising precomputed simulation results of primarily translational impacts on a brain, each precomputed simulation result comprising a pressure map; and the computing system configured with machine readable code adapted to read at least one precomputed simulation result corresponding to an entry in the database nearest in at least angle and acceleration to the suspicious impact.