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Polaris Vicra®

Bring exceptional measurement accuracy and reliability to confined tracking areas with our compact optical tracker.

Our Compact Optical Tracker that Supports Small OEM Instrument Navigation

The Polaris Vicra® shares the same trusted measurement performance as all Polaris optical trackers, but in a smaller form factor. Its compact size can allow medical device OEMs to integrate the Polaris Vicra into surgical workflows that require smaller instruments and where equipment or operative space is limited.

Polaris Vicra

Exceptional Measurement Accuracy

The Polaris Vicra tracks 3D tool positions with sub-millimetre measurement accuracy and repeatability. The most subtle OEM surgical tool movements are precisely tracked and localized in real-time, with volumetric accuracy to 0.25 mm and 95% confidence interval of 0.5 mm.

Compact Hardware Design

The Polaris Vicra features a compact form factor and weighs just 0.8 kg. It can be mounted or transported almost anywhere – even in areas where equipment or operative space is tight. Its portable design is enhanced with a pre-calibrated measurement volume and quick system start-up.

Optimized Measurement Volume

The Polaris Vicra has a smaller measurement volume that is optimized for targeted tool tracking within localized areas. Polaris Vicra tool geometries are correspondingly reduced, which allows for lighter and more ergonomic OEM instruments that support very precise movements.

Customizable System Implementation

The Polaris Vicra comes with different software utilities to customize how the optical tracker and tools interface with the OEM host application. Tool geometries and other tracking parameters are set by a tool definition file, while a built-in API speeds application development and integration.

Technical Specifications

Volumetric Accuracy1,2 RMS 0.25 mm
95% Confidence Interval1,2 0.50 mm
Maximum Frame Rate 20 Hz
Measurement Volume Vicra Volume
Tool Tracking
Tool Types Passive, Active Wireless
Maximum Number of Tools Load up to 15 tools; simultaneously track up to 6 passive and 1 active wireless
Maximum Number of Markers per Tool 6 single-face/20 multi-face
Dimensions (LxWxH)273 x 69 x 69 mm
Weight0.8 kg
Mounting¼” thread tripod mount or secured via three M3 x 0.5 mm pitch x 9.0 mm deep threaded holes, rear mount
Data Communication
Interface USB

Polaris Vicra Measurement Volume

Passive Marker Sphere

Learn about the Passive Marker Sphere used with the Polaris Vicra

Request an Information Datasheet

Learn more about Polaris Vicra technical specifications and performance capabilities with this 2-page datasheet.

MC – Vicra Datasheet

Legal Disclaimer
NDI tracking and measurement products 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 the use of NDI products or technologies in any application.

1 Based on a single marker stepped through more than 900 positions throughout the measurement volume using the mean of 30 samples at each position at 20°C.
2 Accuracy stated based on overall volume.