The Infrascanner Model 2000
The Infrascanner Model 2000 is a portable screening device that uses Near-Infrared (NIR) technology to screen patients for intracranial bleeding, identifying those who would most benefit from immediate referral to a CT scan and neurosurgical intervention. In the triage of head trauma patients, the Infrascanner can identify patients most likely to have intracranial bleeding.
The Infrascanner Model 2000 unit is a small, portable handheld device, which includes a Sensor and a Cradle. The Sensor includes an eye safe NIR diode laser and an optical detector. The light to and from the laser and detector are optically coupled to the patient’s head through two disposable light guides. The detector signal is digitized and analyzed by a single board computer (SBC) in the Sensor. The SBC receives the data from the detector and automatically adjusts the settings to ensure good data quality. The data is further processed by the SBC and the results are displayed on the screen.
The Sensor is turned on by placing a disposable shield on the Sensor and turned off by removing the disposable shield. The Sensor can be powered either by a rechargeable NiMH battery pack or by 4 disposable AA batteries. The Cradle is used to charge the rechargeable battery pack, if it is used in the Sensor, and to copy the data from the Sensor into a Personal Computer.
The Infrascanner Model 2000 was developed based on Infrascanner Model 1000, following the specifications of the US Marine Corps. The key changes included:
- Integration of the processing, display and control functions of the separate PDA into the sensor.
- Ruggedization of the system for improved durability.
- Addition of the ability to use regular AA batteries in addition to a rechargeable battery pack.