NIRO-200NX Near infrared oxygenation monitor
The NIRO-200NX is a tissue oxygenation monitor that uses near infrared spectroscopy. The unit uses safe, low light to measure the Tissue Oxygenation Index (TOI), showing the oxygen saturation level, the Normalised Tissue Haemoglobin Index (nTHI), showing the percentage change in the amount of initial haemoglobin, as well as changes in concentration of oxygenated haemoglobin (ΔO2Hb), deoxygenated haemoglobin (ΔHHb), and total haemoglobin (ΔcHb), all in real time.
This is a medical device cleared in Japan and Taiwan.
|Measurement items||Tissue oxygenation index: TOI (%)|
Normalized tissue hemoglobin index: nTHI (absolute value in arbitrary unit)
Oxygenated hemoglobin change: ΔO2Hb (μmol/L)
Deoxygenated hemoglobin change: ΔHHb (μmol/L)
Total hemoglobin change: ΔcHb (μmol/L)
|Sample interval||0.05 s, 0.2 s, 0.5 s, 1 s, 2 s, 5 s, 10 s, 20 s, 30 s|
|Light source||LED (735 nm, 810 nm, 850 nm: nominal values）|
|Output power||Less than 2 mW|
|Measurement method||SRS method (Spatially Resolved Spectroscopy) and MBL method (Modified Beer-Lambert)|
|Data memory||Internal backup memory for more than 10 data files. (Maximum number of data samples for each file is 50 000.)|
|Saving data to a USB device||Measured data can be saved to an external USB memory device using the USB connector.|
|Output signal||Digital output (RS-232C)/Analog output/Philips Vuelink format|
|Measurement probes||Approx. 2.5 m cable length (for emission and detection probes)|
|Battery||Operating time of about 30 min. (fully charged)|
|External event input||TTL, "L" with a duration longer than 100 ms|
|Dimensions/Weights||Display unit: approx. 264 mm(W)×279 mm(H)×190 mm(D)/approx. 6 kg|
AMP unit: 91 mm(W)×55 mm(H)×156 mm(D)/approx. 0.7 kg
|Cable length||AMP unit: approx. 4 m|
|Power consumption||Less than 90 VA|
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