cobas b 221 system

cobas b 221 system

The cobas b 221 blood gas system sets
the gold standard for pleural fluid pH testing
 

Measuring pleural fluid pH is a clinically useful tool for diagnosing and managing
patients with pleural effusions and can be especially important in critical care
situations, when dependable performance is essential.

 

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Measured parameters

Blood gas module Total specified range
pH 6.0 - 8.0
PCO2 4.0 - 200 mmHg
PO2 0 - 800 mmHg
Electrolyte module
Na+ 20.0 - 250 mmol/L
K+ 0.2 - 20 mmol/L
Ca2+ 0.1 - 4.0 mmol/L
Cl- 20.0 - 250 mmol/L
Hct 10% - 80%
Hemoglobin module
tHb 3 - 25 g/dL
SO2 50% - 100%
Metabolite module
Glu 0.5 - 40 mmol/L
Lactic acid 0.2 - 20 mmol/L
Urea (BUN) 0.5 - 30 mmol/L
CO-oximetry module
tHb-COOX 3 - 25 g/dL
O2Hb 0% - 100%
HHb 0% - 100%
COHb 0% - 100%
MetHb 0% - 100%
SO2 COOX 0% - 100%
Bilirubin (neonatal) 3 - 50 mg/dL
Barometric pressure (Baro) 450 - 800 mmHg

 

General characteristics

Calculated parameters

H+, cHCO3-, ctCO2(P), FO2Hb, BE, BEecf, BB, SO2, P50, ctO2, ctCO2(B), pHst, cHCO3-st, PAO2, AaDO2, a/AO2, avDO2, RI, shunt, nCa2+, AG, pHt, H+t, PCO2t, PO2t, PO2t, AaDO2t, a/AO2t, RIt, Hct(c), MCHC, BO2, BEact, osmolality, OER, heart minute volume (Qt), P/F index

Sample types

Whole blood, serum, plasma, dialysate, QC material

Data processing

Industrial standard PC

Monitor

Built-in flat color TFT-LCD 10.4-inch screen (touchscreen)

Thermal printer

Built-in 111 mm, graphical capability

Bar code scanner

Standard accessory

Electrical requirements

Power rating

100 - 240V (+6% - 10% permission to tolerance), 200W, 50/60 Hz autoselecting

Ambient temperature

+15 to +31 C (59 to 89.6 F)

Relative humidity, not condensed

15 < T < 31 C: 20% - 85%

Options

Built-in AQC

Automatic quality control system, with room for up to 120 QC ampoules

Test certificate

FDA

510 (k)

UL

UL3101-1

CE-conformity

IVD-Directive 98/79/EC (IEC 1010-1 / EN 61010-1 / EN 61010-2-101)

Dimension/weight

Width

< 51 cm

Height

< 59 cm (in operating situation)

Depth

< 60 cm (with power supply)

Weight (without solutions, without AutoQC)

45 kg

Calibration

Intervals, Duration

System calibration

Every 24 hours (programmable 8, 12, or 24 hours)

1-point calibration

Every 60 minutes (programmable 30 to 60 minutes)

2-point calibration

Every 12 hours (programmable 4, 8, or 12 hours)

Warm-up

Power on with calibration < 43 minutes 
Power fail < 1 minutes < 2.5 minutes

 

Maintenance

Maintenance frequency Time required Required maintenance
Daily 1 minute
  • Check fill levels
  • Check printer paper
Weekly 3 - 5 minutes
  • Clean fill port and sample drip tray
  • Clean screen
Quarterly 5 - 10 minutes
  • Clean T&D disk
  • Perform COOX calibration
Biannually 1 minute
  • Change peristaltic pump tubing
  • Change air filter
As needed  
  • Change bottle or pack
  • Change printer paper
  • Clean modules and sample paths
  • Change fill port
  • Clean bottle compartment
  • Decontaminate surfaces
  • Change AutoQC mats