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Home Physiology Products HSE-HA Data Acquisition Software PULMODYN® Pennock Data Acquisition Software


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PULMODYN® Pennock Data Acquisition Software

This software was especially developed for the investigation of bronchospasmolytically active substances on conscious animals. In this experiment the awake animal is placed into a double chamber plethysmograph box Type 855 and is restricted so that the head protrudes into the front chamber. The neck is sealed with a soft diaphragm. The nasal air flow is measured in the front chamber, the thoracic respiratory flow in the rear chamber. Both measurements are made with wire-mesh measuring screens and differential pressure transducers. There is a phase shift between the two respiratory flows from which the PULMODYN PENNOCK software calculates the specific airway resistance according to PENNOCK. Data acquisition covers the following signals: pulmonary air flow in the nasal chamber, pulmonary air flow in the thoracic chamber. From the flow signal of the thoracic chamber the following parameters are calculated: respiration rate, tidal volume, maximal inspiratory flow, maximal expiratory flow.
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731702 PULMODYN Pennock W Software

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This software was especially developed for the investigation of bronchospasmolytically active substances on conscious animals. In this experiment the awake animal is placed into a double chamber plethysmograph box Type 855 and is restricted so that the head protrudes into the front chamber. The neck is sealed with a soft diaphragm. The nasal air flow is measured in the front chamber, the thoracic respiratory flow in the rear chamber. Both measurements are made with wire-mesh measuring screens and differential pressure transducers. There is a phase shift between the two respiratory flows from which the PULMODYN PENNOCK software calculates the specific airway resistance according to PENNOCK. Data acquisition covers the following signals: pulmonary air flow in the nasal chamber, pulmonary air flow in the thoracic chamber. From the flow signal of the thoracic chamber the following parameters are calculated: respiration rate, tidal volume, maximal inspiratory flow, maximal expiratory flow.
From the phase shift between nasal and thoracic flow the following parameters are calculated: phase shift and specific airway resistance. During data acquisition all acquired signals and derived parameters can be displayed on the screen.
The system covers eight channels. This makes it possible to experiment simultaneously on 4 plethysmograph boxes. All 8 signals are sampled at 1 kHz. This means that each channel is measured 1000 times per second, or measurements on each channel are made once every millisecond. This permits measuring phase shifts of some milliseconds and calculate from this delay the specific airway resistance.
The Software Receives the Following Signals from up to 4 Plethysmograph Boxes:
• Airflow from the Nasal Chamber
• Airflow from the Thoracic Chamber
Optional:
• Blood Pressure
• ECG
From these signals the software calculates the following parameters online:
From the Pulmonary Air Flow signals:
• Respiration Rate (RR)
• Peak Inspiratory Flow (PIF), Peak Expiratory Flow (PEF)
• Tidal Volume (TV)
Optional:
• IT (Inspiratory Time), ET (Expiratory Time), AT (Apnea Time), TT (Total Time), TB (Time of brake), TP (Time of pause), Airflow at 0.5VT
From the Phase Shift between Nasal and Thoracic Airflow:
• Phasic Shift in msec (PenSift)
• Specific Airway Resistance (Res)
Optionally from Blood Pressures:
• Systolic, Diastolic, Mean Pressure
• Heart Rate
Optionally from the ECG:
• Heart Rate
• RR-I


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Specifications731702
Channels8

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Differential Involvement of NMDA, AMPA/Kainate, and Dopamine Receptors
   

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