PortaLite MKII

Light, easy to use and truly portable

  • Measures local oxy-, deoxy- and total hemoglobin concentration changes and tissue saturation index (TSI).

  • Applicable on frontal brain and muscle tissue.

  • Fast set up time.

  • Built-in short separation channels to measure both deep and superficial tissue.

  • Real-time online or offline recording with a high sampling rate (up to 100 Hz) and large battery longevity.

  • On-board event button to easily mark events.

  • Integrated movement sensor possibility.

  • Can be used with one or two sensors.

Where light meets Lite

Built-in short separation channels

High data quality is crucial to acquire results that can be trusted on. Next to three channels, the PortaLite MKII contains three short separation channels with decreased receiver-transmitter distance. Short separation channels can be used to improve signal quality of the data.

More information about short separation channels

Dual sensor configuration

The standard PortaLite MKII package comes with two sensors included. Containing two sensor connection possibilities per control unit, the PortaLite MKII offers the opportunity to use one or two sensors at the same time. This leads to maximum flexibility in choice of application. Both brain sides, different muscles, or brain and muscle simultaneously - measurement possibilities are unlimited!

6-axis motion sensor

It is possible to add Inertial Measurement Units (IMUs), also known as motion sensors, in the PortaLite MKII by request. The built-in gyroscope and accelerometer on each sensor can be used to easily acquire position and orientation movement data in real time. Within our software OxySoft, movement and NIRS data are synchronized. In addition, using the motion sensor significantly simplifies the removal of movement artifacts. Adding the motion data enhances measurement possibilities for your research!

Measures on brain, muscle, or both

Measures oxy-, deoxy-, total hemoglobin & TSI

The PortaLite MKII can show not only relative changes in hemoglobin concentrations, but also absolute value of oxygen saturation in local tissues in real-time. It provides six channels to measure relative changes in oxy- deoxy- and total hemoglobin. Additionally, it measures the absolute value of oxygenated hemoglobin as tissue saturation index (TSI). This makes it the ideal device to reliably measure tissue or brain oxygenation in research.

Perfect for both brain and muscle tissue

Stick the PortaLite MKII to the forehead or muscle tissue of interest and start measuring. It is that easy!

Limitless device range

The offline measurement feature enables performing measurements outside your Bluetooth range. This perfectly allows for capturing data during physical activity, such as running or cycling, in any terrain, from mountains to forests. The data you have acquired offline can easily and directly be loaded into our software OxySoft for further analysis.

All PortaLite MKII specifications

NIRS made easy

PortaLite applications

The PortaLite MKII can be used to measure brain and muscle oxygenation non-invasively in daily life scenarios using Near-Infrared Spectroscopy (NIRS). The flexible sensors optimally fit onto curved areas, such as the head or rounded muscles. It is highly portable, easy to use and provides almost no set-up time. Due to light weight, possibility to perform offline measurement, and battery longevity of up to 35 hours, it cannot only be used in the lab, but also on the field performing physical activities. Therefore, the PortaLite MKII offers a huge range of application areas, including functional studies, sports science, and clinical and rehabilitation studies and many others.

PortaLite MKII sensor adhesive

Introducing our exclusive sensors’ adhesive, meticulously crafted to perfectly complement the PortaLite MKII sensors.

  • Designed to fit the PortaLite MKII sensors, these custom-made discs guarantee an impeccable fit around the sensors’ transmitters and receivers.

  • Rest assured, these adhesive discs have undergone rigorous testing for biocompatibility with skin irritation, sensitization, and cytotoxicity.

  • With a thickness ranging from 4.8 to 5.2 microns, these adhesive marvels strike the perfect balance between durability and flexibility.

  • Each package contains an impressive set of 52 stickers, providing you with an abundant supply to meet your needs and keep your procedures running smoothly.

How NIRS works

The NIRS technique

Optical oximetry and near-infrared spectroscopy (NIRS) in particular is a tool for non-invasively assessing the oxygenation status and hemodynamics of various organs, e.g., muscle and brain. They rely on mainly two characteristics of human tissue. Firstly, the relative transparency of tissue for light in the NIR range, and secondly on the oxygenation dependent light absorbance of hemoglobin.

Read more >

Real-time processing of fNIRS data

Software

All of our devices are bundled with OxySoft. OxySoft is our dedicated software application used to collect, store, view, and analyze all necessary data. This user-friendly software is developed by Artinis and is highly customizable to individual requirements. OxySoft provides in real-time the calculation of oxy-, deoxy-, total hemoglobin and TSI.

PortaLite MKII research package

Designed, produced, and manufactured in The Netherlands, EU.

What’s in the box

  • PortaLite MKII control unit + 2x PortaLite MKII sensor

  • PortaLite MKII starter pack

  • OxySoft, our proprietary data analysis software

  • Laptop with pre-installed software

  • OxySoft license key

  • USB Bluetooth dongle

  • Universal micro-USB cable

  • Battery charger

  • User Manual & Quick Start guide in English

  • Support in setting up your research

Dr. Chris McKnight, University of St. Andrews

“Working with Artinis over the last two and a half years has been a very exciting and incredibly productive collaboration. Being completely new to NIRS and aiming to take the technology underwater was a daunting task. But the support of Artinis at every level from developing the technology around the idea right up to publishing the work, is second to none. The support, enthusiasm, understanding that setbacks are inevitable, skill and expertise of Artinis as a collective, is ultimately what has made our science possible and for that I am truly grateful.

With so many interesting questions across so many extreme diving species, we look so much forward to our continued endeavors with Artinis, their wonderful technology and their support.”

The MediBrite is a CE marked medical device according to Medical Device Regulation (EU) 2017/745.

Other Artinis NIRS products are intended to be used for research applications only. Other Artinis products are not sold as Medical Device as defined in Medical Device Regulation (EU) 2017/745. Our products are not designed or intended to be used for the diagnosis or treatment of disease.