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Polaris Vega® and Polaris Lyra® Comparison
The Polaris Vega and Polaris Lyra share the same trusted foundation of sub-millimetre measurement performance but differ in size and accuracy. The Polaris Vega provides tracking of larger OEM surgical instruments within a larger measurement volume. It combines high measurement accuracy, high-speed tracking, and low latency, facilitating easy integration of 6D tracking within surgeon-controlled workflows, autonomous OEM robotic surgery systems, and applications. The Polaris Lyra’s smaller size and optimized measurement volume make it an excellent optical measurement solution for tracking smaller tools within confined areas. The compact form factor allows it to be mounted almost anywhere on the OEM medical system or within the operative suite.
Performance
Polaris Vega XTPyramid Volume (RMS) | Polaris LyraPyramid Volume (RMS) | |
|---|---|---|
| Volumetric Accuracy1,2 | 0.12 mm | 0.20 mm |
| 95% Confidence Interval1,2 | 0.20 mm | 0.40 mm |
| Maximum Frame Rate | 400 Hz | 125 Hz |
| Measurement Volume | Pyramid Extended Pyramid (optional) | Pyramid Extended Pyramid (optional) |
Hardware
Polaris Vega XT |
Polaris Lyra |
|
|---|---|---|
| Dimensions (LxWxH) | 591 x 103 x 106 mm | 276 x 78 x 70 mm |
| Weight | 1.7 kg | 0.8 kg +/- 0.05 kg |
| Mounting | Four M4 x 0.7 mm pitch x 10 mm deep threaded holes, rear mount | ¼” thread tripod mount or secured via three M3 x 0.5 mm pitch x 9.0 mm deep threaded holes, rear mount |
Tool Tracking
Polaris Vega XT | Polaris Lyra | |
|---|---|---|
| Tool Types | Passive, Active Wireless | Passive, Active Wireless, Active Wired |
| Maximum Number of Tools | Load up to 25 tools (maximum of 6 active wireless) | Load up to 25 tools total – a mix of active wired, active wireless, and passive tools. Simultaneously track up to 6 passive tools, 6 active wireless tools, and 3 active wired tools. |
| Maximum Number of Markers per Tool | 6 single-face/20 multi-face | 6 single-face/20 multi-face |
Data Communication
Polaris Vega XT |
Polaris Lyra |
|
|---|---|---|
| Data Communication | Gigabit Ethernet | Ethernet (PoE+) |
| Network Synchronization | Precision Time Protocol (PTP) | General Purpose Input/ Output (GPIO) Hardware Port |
| Data/Power Interface | Ethernet, RJ45 | Ethernet, RJ45 |
*Example of an original equipment manufacturer’s use of Polaris in its medical device system.
1Based 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.
2Accuracy stated based on overall volume.
Polaris Vega® and Polaris Lyra®</sup Comparison
Polaris Vega
NDI’s advanced optical measurement solution with three models of optical trackers that deliver unrivalled measurement performance and versatility for emerging OEM surgical navigation applications.
Polaris Lyra
Bring exceptional measurement accuracy and reliability to confined tracking areas with our compact optical tracker: Polaris Lyra.
Navigate New Possibilities
NDI stays the course with its partners, ensuring that they get to market faster. We understand that system design is only one piece of your complex path to market. Through our dedicated account management, integration, and technical support teams, we invest in all stages of the product development life cycle- from initial concept creation, through subsystem design, cost, performance optimizations, and the critically important high-volume factory calibration process.
Technology Overview
NDI’s optical measurement solutions, Polaris Vega and Polaris Lyra, use near-infrared (IR) light to wirelessly detect and track navigation markers attached to OEM surgical instruments.
Integration
NDI’s optical measurement and electromagnetic tracking solutions can be tailored to your unique tracking application through diverse customization and integration options.
Resources
Learn more about NDI’s optical measurement and electromagnetic tracking solutions through our collection of videos, articles and datasheets. Navigate the possibilities for your unique OEM surgical instrument.
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.