The Polaris® optical tracking solution gives medical simulator manufacturers exceptionally accurate and reliable 3D tracking of simulated medical tools (via attached markers) over a large measurement volume. The Polaris emits infrared light to wirelessly detect and track a tool’s position and orientation in all six degrees of freedom. Trusted by surgeons worldwide for performing computer-assisted surgery and therapy, the Polaris represents the ideal technology for replicating those same procedures in an interactive, virtual environment for surgical training and surgical rehearsal.
The position and orientation of each medical tool is tracked and displayed within the simulation software in real time. Data integration occurs seamlessly and instantly, providing uninterrupted tool interaction. The Polaris enables a closed-loop system for real-time haptic feedback of tool use, allowing for quantifiable evaluation of the trainee’s surgical technique and performance. When combined with actual CT or MRI scans of patients, the result is a surgical simulation system that provides a training experience that’s highly accurate and true to life.
The flexible Polaris solution is comprised of different hardware components that can be configured for different medical simulator form factors and integration specifications. The large measurement volume provided by the Polaris Spectra® is especially beneficial for larger, fixed medical simulation systems, including the surgical theatre itself.
|Hybrid Polaris Spectra®||Passive Polaris Spectra®||Polaris Vicra®|
|Volumetric1,2||Pyramid: 0.25 mm RMS Extended Pyramid: 0.30 mm RMS2||0.25 mm RMS|
|AAK||0.35 mm RMS||0.35 mm RMS|
|95% Confidence Interval||Pyramid: 0.5 mm Extended Pyramid: 0.6 mm||0.5 mm|
|Maximum Update Rate3||60 Hz||20 Hz|
|Operating Temperature4||10C° to 40°C||10°C to 30°C|
|Data Communication Interface|
|Interface||USB 1.1 and 2.0 compatible, RS-232 or RS-422 with SCU||USB 1.1 and 2.0 compatible||USB 1.1 and 2.0 compatible|
|Maximum data rate||1.2 Mb per second||1.2 Mb per second||1.2 Mb per second|
|Tool Types||Passive, active wireless, active||Passive, active wireless||Passive, active wireless|
|Maximum number of tools||Up to 15 wireless tools (maximum 6 active wireless) with a maximum of 32 passive and 32 active markers in view and up to 9 additional active tools||Up to 15 wireless tools (maximum 6 active wireless) with a maximum of 32 passive and 32 active markers in view||Up to 6 tools (maximum 1 active wireless) with a maximum of 32 passive markers in view|
|Maximum number of markers per tool||6 single-face/20 multi-face for passive or active wireless tools; 20 for active tools||6 single-face/20 multi-face for passive or active wireless tools||6 single-face/20 multi-face for passive or active wireless tools|
|Tool change||Automatic for active; software controlled for passive and active wireless||Software controlled||Software controlled|
NDI tracking and measurement products (listed below) are general metrology components that can be integrated into customer products, research experiments, and/or as components of medical devices that require precision measurement and tracking. While NDI components and technology can be integrated into original equipment manufacturer (OEM) medical devices, they are not specifically intended for a given application and, as such, have not been developed or manufactured in accordance with medical device standards. It remains the responsibility of the OEM customer or end-user to determine and test the suitability of NDI components and technology for their intended use, including performing any required ethics approval, verification, and validation required to demonstrate suitability and compliance. System-level testing, certification, and validation are the responsibility of the original equipment manufacturer or the applicable end-user and should be completed prior to use of NDI products or technologies in any application.