spryTrack 180

Compact & Mobile  slightly longer than a pencil
Sub-millimetric precision  130 μm RMS up to 1 m
Bluetooth direct link to a tablet  (iOS, Win, Android)
USB 3.0 type C  complete access to images and data
Active and passive markers  tracked simultaneously

Atracsys is proud to introduce the spryTrack system that represents the vision of the future for computer assisted surgery. A compact solution for integration into your application.

In addition, it is:

Adaptable: can be adjusted to any set without any wires.
Affordable: as it offers competitive pricing in the marketplace.
Accessible: as it is easy to retrieve data on your tablet via Bluetooth.
Autonomous: as it has battery power, which is optional.

The extremely compact spryTrack is composed of two cameras designed to detect and track fiducials (reflective spheres, disks and/or IR-LEDs) with high precision in real time video streams. Triangulation enables retrieving 3D position of each fiducial with sub-millimetric accuracy. When several fiducials are affixed to a marker, its pose (orientation and  position) is calculated with 6 degrees of freedom (x,y,z,α,β,γ). The spryTrack has the ability to provide 3D positions of the fiducials, and/or poses of the markers.

The spryTrack offers both a USB 3.0 Type C (for power and/or data) as well as a Bluetooth connection (for data only) allowing a wireless link to a tablet on which the navigation application runs. A PC is no more needed. An optional battery pack enables complete mobility.

The SDK allows access to data at different stages of processing, starting from raw images, individual 3D positions of fiducials, and up to the pose of markers. The SDK also provides multi-level fault checking. This makes it possible to access error information in real-time at any processing stage: fiducial occlusion level, stereo de-calibration, marker registration error and more.

Android demo App

Our new spryTrack Android demo app is now available on PlayStore. Accelerate your spryTrack wireless development and integration with this Android app!

Technical Specifications

Size 233 mm x 57 mm x 47 mm
Weight 670 g
Accuracy (1) 0.13 mm RMS up to 1 m
0.24 mm RMS up to 1.4 m
0.49 mm RMS up to 2 m
0.26 mm 95% CI up to 1 m
0.47 mm 95% CI up to 1.4 m
0.99 mm 95% CI up to 2 m
Tracking volume Starts at 200 mm
Measurement rate 54 Hz
Latency (2) 25 ms
Hybrid tracking Reflective spheres / disks, Active wired and wireless
Acquisition Parallel (all fiducials at the same time)
Resolution 1.2 Mp
Max. simultaneous markers (3) Almost unlimited
Max. fiducials per marker 5
Interface USB 3.0 Type-C SuperSpeed
Bluetooth 4.1 Smart Ready
Operating systems Windows / Linux / iOS / Android
Mounting M3 screws
Power requirements USB power delivery 5V 3A 15W
Operating temperature 15-25°C
Shock sensor (4) Shock sensor and RTC monitoring device even when not connected
Battery pack (4) up to 2 hours of autonomy
Lasers (4) 2 lasers for device positioning
Approvals Electrical safety
IEC 60601-1 ed3.1 (2012-08-20)
Electromagnetic compatibility
IEC 60601-1-2 ed 4.0 (2014-02-25)
Hardware requirements Intel(R) Core(TM) i3-6100U CPU @ 2.30GHz
50 MB (Windows) 30 MB (Unix/Linux) disc space
Window 8.1 (32 and 64 bits supported)
Linux (32 and 64 bits supported), gcc 5.4 or clang 3.8

(1) Based on a single fiducial stepped more than 2000 points throughout the
measurement volume at 20°C.
(2) 24ms image acquisition + ~1ms processing time & data transmission
(3) 16 max recommended to preserve full speed
(4) optional

Due to continuous improvements, Atracsys reserves the right to modify the information or specifications without prior notice.


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