3

Indication and Method

The IAP-Monitor and the catheters are intended for the monitoring of intraabdominal pressure in the stomach.

The air-pouch system consists of a hollow body connected to a pressure transducer by tubing. The pressure transducer, the electronic hardware, and the device for filling the air-pouch are integrated in the IAP-Monitor.

For intraabdominal pressure measurements the air- pouch is placed in the stomach of the patient. The intraabdominal pressure is transmitted across the thin pouch wall to the air volume in the pouch and transformed into an electric signal by the pressure transducer.

On the digital display the mean pressure is shown. At the monitor output both the mean pressure and the pulsatile signal are available.

Once every hour the IAP-Monitor opens the pressure transducer to atmospheric pressure for zero adjustment. The air-pouch is

then filled with the exact air volume required for accurate pressure transmission.

8

Technical specifications

REF

IAP 32.1

Measurement range

-50 to +100 mmHg

Operating voltage

230 V~, 50/60 Hz

 

or

 

115 V~, 50/60 Hz

Current requirement

0,1 A at 230 V~

 

0,2 A at115 V~

Fuses

125 mA T at 230 V~

 

250 mA T at 115 V~

Voltage output

1V/50 mmHg at 1 kΩ

Pressure monitor output

5 µV/mmHg/V

RS 232 C interface

9600 Bd (other baud rates

 

upon request)

Accuracy class

2

Safety class

I / BF

Weight

3 kg

In accordance with standards

IEC 60601-1

 

IEC 60601-1-2