Whole body plethysmograph: PDT-111/p

The device insures the measurement of mechanical parameters of the pulmonary system

  • Accessible for patients sitting in a wheelchair (optional)
  • Double time constant of the cabin provides tests at normal breathing frequency and with panting as well
  • Diffusion capacity test (optional)
  • Spacious cabin with four transparent walls and roof from hardened glass
  • Electro magnetic door lock without any moving part
  • Programmable audiovisual metronome
  • Automatic BTPS correction based on the temperature, humidity and pressure measured in the cabin
  • Full automatic calibration and leakage test
  • Communication system with built in speaker and microphone

Software system overview 

  • Measurement modes
  • Measured parameters
  • Accessories
  • Technical data
  • Thoracic gas volume
  • All components of airway resistance
  • Work of breathing
  • Maximal occlusion pressure
  • Dynamic and static compliance (optional)
  • Diffusion capacity test (optional)
  • Active anterior nasal resistance (optional)
  • Active posterior nasal resistance (optional)
  • Forced ex- and inspiration
  • Static vital capacity
  • Maximal voluntary ventilation

Whole list of Pulmonary Function Tests’ parameters

  Plethysmograph TGV mode
TLC Total Lung Capacity
TGV Thoracic Gas Volume
RV Residual Volume
RV/TLC Ratio of RV and TLC in %
Raw Resistance of Airways
Rin Resistance of Airways at Inspiration
Rex Resistance of Airways at Expiration
Req Equivalent Resistance
sRaw Specific Resistance of Airways
sRin Specific Resistance of Airways at Inspiration
sRex Specific Resistance of Airways at Expiration
Gaw Conductance of Airways
Gin Conductance of Airways at Inspiration
Gex Conductance of Airways at Expiration
sGaw Specific Conductance of Airways
sGin Specific Conductance of Airways at Inspiration
sGex Specific Conductance of Airways at Expiration
BF Frequency of Breathing at Resistance Measurement
W Work of Breathing at Resistance Measurement
  Maximal occlusion pressure
PE max Maximal expiratory pressure
PI max Maximal inspiratory pressure
  Compliance measurement (optional)
Cdyn Dynamic Compliance
Edyn Dynamic Elastance
Cstat Static Compliance
Estat Static Elastance
Cdyn/TLC Ratio of Cdyn and TLC in %
Cstat/TLC Ratio of Csta and TLC in %
Cdyn/FRC Ratio of Cdyn and FRC in %
Cstat/FRC Ratio of Csta and FRC in %
Cdyn/TGV Ratio of Cdyn and TGV in %
Cstat/TGV Ratio of Csta and TGV in %
W Work of Breathing at Cdyn measurement
  Diffusion Capacity Test (optional)
TLC Total Lung Capacity
FRC Functional Residual Capacity
FRC/TLC Ratio of FRC and TLC in %
Tlco Transfer factor of the lung for CO [mmol/min/Pa]
Dlco Transfer factor of the lung for CO [ml/min/mmHg]
Klco Transfer coefficient of the lung for CO
BHt Breath Hold Time
WOV Wash-Out Volume
CO ppm CO concentration in the exhaled air
Tlco IB Intra-Breath Transfer factor of the lung for CO [mmol/min/Pa]
Dlco IB Intra-Breath Transfer factor of the lung for CO [ml/min/mmHg]
Klco IB Intra-Breath Transfer coefficient of the lung for CO
  Forced ex and inspiration
FVC Forced Vital Capacity
FEV*0.5 Forced Expiratory Volume in 0.5 second
FEV*1.0 Forced Expiratory Volume in 1.0 second
FEV*0.5/IVC Ration of FEV*0.5 and IVC in %
FEV*0.5/FVC Ration of FEV*0.5 and FVC in %
FEV*1.0/IVC Ration of FEV*1.0 and IVC in %
FEV*1.0/FVC Ration of FEV*1.0 and FVC in %
PEF Peak Expiratory Flow
FEF*25-75% Forced mid-Expiratory Flow rate
FEF*75% Forced Expiratory Flow at 75% lung volume
FEF*50% Forced Expiratory Flow at 50% lung volume
FEF*25% Forced Expiratory Flow at 25% lung volume
FET Forced Expiratory Time
MTT Mean Transit Time
FIVC Forced Inspiratory Vital Capacity
FIV*0.5 Forced Inspiratory Volume in 0.5 sec
FIV*1.0 Forced Inspiratory Volume in 1.0 sec
PIF Peak Inspiratory Flow rate
FIF*25-75% Forced mid-Inspiratory Flow rate
  Static vital capacity
IVC Inspiratory Vital Capacity
IRV Inspiratory Reserve Volume
ERV Expiratory Reserve Volume
TV Tidal Volume
SVC Slow Vital Capacity
  Maximal Voluntary Ventilation
MVV Maximal Voluntary Ventilation
MVV*f Maximal Voluntary Ventilation Frequency
  Rhinomanometry (optional)
Flow [ 50] Flow speed at 50 Pa drive pressure
Flow [ 75] Flow speed at 75 Pa drive pressure
Flow [100] Flow speed at 100 Pa drive pressure
Flow [150] Flow speed at 150 Pa drive pressure
Flow [300] Flow speed at 300 Pa drive pressure
RES  [ 50] Resistance at 50 Pa drive pressure
RES  [ 75] Resistance at 75 Pa drive pressure
RES  [100] Resistance at 100 Pa drive pressure
RES  [150] Resistance at 150 Pa drive pressure
RES  [300] Resistance at 300 Pa drive pressure
 
 
PinkFlow flow meter PPF-18
Bacterial and viral filter PBF-100
Mouth piece PMP-30
Nasal clip PNC-65
Calibration syringe PCS-3000
 
 
Flow meter PinkFlow
Type PPF-18
Principle Symmetric and averaging Pitot tube
Flow range ±18 l/s
Accuracy ±2% or 50 ml, whichever is greater
Dead space 36 ml
Resistance 60 Pa/l/s @ 15 l/s
Accuracy of volume ±3 % or ±50 ml
Breath frequency 20 - 40 / minute
  60 – 120 / minute
Range of mouth pressure ±20 kPa
Accuracy of pressure ±2 % or ±50 Pa
Accuracy of airway resistance ±3 % or ±50 Pa/l/s
Volume of reference chamber 25 litre
Power supply 90 ÷ 260 VAC 50/60 Hz
Power consumption 60 VA
Basic model PDT-111/p
Size of the cabin Height: 1680 mm
  Wide: 925 mm
  Deep: 790 mm
Volume of the cabin 910 litre
Weight of the cabin 200 kg
Wheelchair model PDT-111/pwc
Size of the cabin Height: 1680 mm
  Wide: 925 mm
  Deep: 1240 mm
Volume of the cabin 1160 litre
Weight of the cabin 225 kg
 

 

 

 

 
Plethysmograph cabin   TGV and airway resistance measurement
 
Plethysmograph workstation   Result table
 
Optional wheelchair access   FVC measurement
   
    IVC measurement
   
    MVV measurement