The consultation covers 27 lots divided into 10 classes of products: - class a: consumables for co2 r57 analyzer, - class b: calibration gas v50, - class c: k50ba05 automatic tensiometer consumables, - class d: cables and extensions ecg k51fg02, - class e: consumables for ecoscreen, - class f: consumables for pneumotachograph
, - class g: r57e-r57z accessories fittings and valves, - class h: r55ba oxygen masks, - class i: r57e consumables of respirators, - class j: various anesthesia.
Cough volume acceleration is difficult to measure clinically as it requires a pneumotachograph
and related equipment.
Computerized flexiflow machine with pneumotachograph
was used to perform the dynamic PFTs.
Flow was measured with a heated pneumotachograph
(Ventrak 1550, Novametrix Company, USA) connected to a differential pressure transducer inserted between the Y-piece of the ventilator circuit and the endotracheal tube.
Breathing patterns were monitored using a Buxco mouse pneumotachograph
with a Buxco pressure transducer coupled to automated Iox 2 software (emka TECHNOLOGIES S.
2]) and a pneumotachograph
through a 3-liter syringe (Hans Rudolf, Kansas City, Missouri, USA), as recommended by the manufacturer.
the reduction of the mass of the bell and the addition of graphic and timing devices), and the Fleisch pneumotachograph
is also widely used in modern commercial analysers.
The inspired and expired air flow were continuously measured with a pneumotachograph
(VIP[TM], nSpire Health GmbH, CO, USA) that was calibrated prior to each test with a 1-liter calibration syringe (ZAN 600, nSpire Health, CO, USA).
Expiratory flow-volume curves were recorded by a spirometer with a pneumotachograph
sensor (Model ST90, Fukuda Sangyo Co.
Comparison of peak cough flows measured by pneumotachograph
and a portable peak flow meter.
Between the ventilator and the proximal end of the ETT, we interposed in succession, a classic breathing circuit (Y-piece), a respiratory filter (heat-and-moisture exchanger), the same as the ones used in clinical settings, and a heated pneumotachograph
Reduction in airflow can be measured accurately by having the patient breathe through a tight-fitting mask with an attached pneumotachograph
, but is much more commonly assessed non quantitatively by measuring pressure just inside a nostril or carbon dioxide or temperature near the mouth and nose by means of thermistors.