The superior choice in mini C-arm imaging

Blur the lines between mini and full size C-arms.

See more with the largest monitor and detector ever available on a mini C-arm. Reach new patients with first-in-class pediatric indication. Work safer with pulsed fluoroscopy and other dose-saving features.

Orthoscan TAU 2020. Expand your capabilities with the most advanced mini C-arm on the market.

Orthoscan TAU 2020 mini C-arm with arm in foreground

27″ monitor | Orthotouch 2.0 | Live image

Anatomy revealed

TAU 2020 introduces the largest screen on a mini C-arm. Experience optimal eye comfort on a hi-bright, 1920 x 1080 resolution monitor.

Powered by Orthotouch 2.0 — the advanced touchscreen interface — with color interface, touch support, anatomical selections, and pediatric software.

Increased visibility provides more information with richer detail to quickly and accurately diagnose patients.

27″Diagnostic monitor
Orthotouch 2.0Advanced Touchscreen interface
13″ x 13″Live image
Orthoscan 27" monitor with startup screen

Detector size

Imaging evolved

Over twice the size of detectors found on conventional mini C-arms*, an industry-leading 20cm x 20cm detector takes the potential of the mini C-arm to the next level.

Confirm joint space with accuracy, see fractures in full view, and save dose by minimizing shots so that you can work efficiently. Combined with pediatric indication, image anatomy in ways never before possible on a mini C-arm.

* Compared to 15cm x 12cm detectors
20cm x 20cm TAU flat detector

LED lights | Collimator | Bilateral controls | C-arm design

A mini C-arm that works with you

1. LED lights

Insufficient lighting during a case can make it challenging to see anatomy clearly. Unique to the Orthoscan TAU family, surgical LED lights provide additional illumination on the anatomy. Eliminate shadows cast from the C-arm and the OR so you can work with certainty.

2. Stepless collimator

Introducing the industry’s first motorized collimator in a mini C-arm. With the touch of a finger, infinitely adjust via the touchscreen interface to minimize radiation exposure and reduce patient dose while limiting the area of interest.

3. Bilateral controls

New backlit controls are easier to see with additional buttons for upgraded functionality.

4. C-arm design

Focus on your case with an increased orbital rotation of 160°, larger arc depth of 20”, and improved umbilical cable. Effortlessly maneuver the C-arm to attain preferred views without stressing your patient’s anatomy.

TAU 2020 C-arm showing LED lights, collimator lever, and sterile field controls
Confident surgeon with Orthoscan TAU 2020 mini C-arm in background

Intelligent Dose Reduction

At Orthoscan, we understand your concerns about radiation exposure and the demand for high-quality images. That’s why the TAU family includes cutting-edge Intelligent Dose Reduction that provides the best in diagnostic image quality while reducing exposure to you and your patients.

up to86%cumulative
dose reduction*

Pulsed fluoroscopy

Reduce your dose, not your image quality

Orthoscan TAU 2020 features pulsed fluoroscopy technology, previously available only on full size C-arms.

By imaging at 30 pulses per second, significantly reduce your dose rate compared to conventional continuous fluoroscopy — all without loss of image quality or detail.

Further reduce dose with selectable pulses per second of 15 and 7.5 pps, depending upon your imaging needs.

Optimized Dose Filter

The only mini C-arm available with pediatric indication

While Orthoscan TAU is a low dose device by design, it is also the only mini C-arm designed for pediatric use.

By engaging the Optimized Dose Filter, Orthoscan TAU can reduce dose significantly in children and adults.

Next generation CMOS

Next generation CMOS imaging for the surgical market

Achieve increased DQE efficiency with the latest generation CMOS detector.

Free from a dependency on photon energy, these detectors produce low-noise images even in very low dose situations. Next generation detectors improve image brightness, decrease ramp time, and reduce dose.

Additionally, Mag Mode retains image quality without an increase in dose.

Stepless collimator

Seamless collimation for the perfect shot

Seamlessly focus your area of interest with the first-ever motorized collimator in a mini C-arm. Enjoy infinite degrees of collimation adjusted via the Orthotouch interface.

Reduce dose to the patient. Improve image quality and contrast. Just one more way Orthoscan TAU 2020 puts the power of choice into your hands.

* Using Intelligent Dose Reduction (with Cu filter) when compared to Orthoscan 1000-0004-FD. In clinical practice, the use of IDR may reduce patient dose depending on the clinical task, patient size, anatomical location, and clinical practice. A consultation with a radiologist and a physicist should be made to determine the appropriate dose to obtain diagnostic image quality for the particular clinical task.

Surgeon driven design

Improved bilateral controls

New backlit controls are easier to see with additional functionality.

Upgraded serviceability

Redesigned from the inside out to reduce service maintenance.

Three-way brake control

Maneuver your system with ease down hallways, around corners, and in the operating room.

User-friendly connectivity

Easy access to the power button and I/O ports directly on top of the chassis.

Integrated cable pushers

Protects power cords and other cables from being damaged.

Enhanced security

Keep your equipment and data safe in the modern healthcare environment.

On-screen help

Description of common system functions available directly on-screen.

Why choose a mini C-arm?

As TAU 2020 closes the gap between mini and full size C-arms, you may wonder which class of device is right for your imaging needs.

Here are three simple advantages TAU 2020 has over full size equipment.

  1. Low dose device

    By the nature of their design and advancements in dose reduction technology, Orthoscan mini C-arms typically emit significantly less dose than conventional full size C-arms.

  2. Easy to use

    Orthoscan mini C-arms are all-in-one units designed to be easily positioned and operated by one user. Multiple operators and accessories are not required.

  3. Small & portable

    True to their name, Orthoscan mini C-arms take up less space in your facility and OR. They are highly portable, making transport between rooms painless.

What’s in a name?

TAU is the name of a mathematical ratio commonly found in nature. It’s often referred to as the Golden ratio.

This ratio can be used to create aesthetically pleasing, natural-looking compositions in designs.

The TAU family was designed using this principle.

Golden curve laid over TAU C-arm



Free space13.8″ / 35cm
Weight475lb / 215.5kg
Height48″ / 122cm
Footprint (W x L)29″ x 33″ / 73.7cm x 83.9cm
Orbital rotation (over rotation)160°
Pivot rotation430°
Lateral rotation (wig-wag)320 °
Vertical range26.5″ / 67.3cm
Arc depth20″ / 50.8cm
Distance to cabinet59″ / 149.9cm
Distance to wheel base45″ / 114.3cm
Keyboard handles


TypeCMOS detector
Detector resolution2 k x 2 k
Detector size20cm x 20cm
Useful array20cm x 20cm
Pixel spacing99 microns
Dose rateAKR / DAP


Display size27″ LCD
Primary “live” image13″ x 13″ / 33cm x 33cm
Dual reference image6″ x 6″ / 15.2cm x 15.2cm
Brightness450 cd/m2
Resolution1920 x 1080
Arm horizontal reach26″ / 66cm
Arm vertical travel14″ / 35.6cm
Arm vertical height19″ / 48.3cm
Arm lateral rotation216° + 370° + 200°
HDMI (external monitor)
Built-in DICOM calibration
Color support


Input power90-253 VAC @ 47-63 Hz
Sterile field controlsBilateral
Multifunction wireless foot switch
Laser alignment
Surgical LED lights
USB 2.0 port
EMI filter

X-ray generator

Focal spot42.5 microns
kV range40 – 78 kVp
mA range0.040 – 0.160 mA
Operating modePulse / continuous
Selectable pulse rateCont, 30, 15, 7.5, 2 pps
CollimatorStepless (4 leaf, 2 axis)
Pediatric filter
Magnification mode


Wireless communicationOptional
SSD capacity64GB
Image capacity26,000
Video capacity14.4min
Cine loop frame rate30 fps
Adaptive noise suppressionAutomatic
Manual noise suppression3 modes
Cine loop export
Edge enhancement
Post process brightness / contrast
DICOM 3.0 compliantStorage SCU
Worklist SCU
Print SCU
Query SCU
Storage Commitment

Brakes & wheels

Braking systemLock, release, directional
Ground clearance4″ / 10.2cm


Start-up time60 sec
Shutdown time20 sec


SoftwareOrthotouch™ 2.0
Operating systemWindows 8.1 embedded
Pediatric workflow support
On-screen measurements
Features and specifications may vary per region. Consult with your local distributor for more information.

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