Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1981-04-13
1983-05-24
Swisher, S. Clement
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
128672, G01L 2700
Patent
active
043844707
ABSTRACT:
A method and device for testing the pressure readings obtained by a pressure sensing blood vessel catheter connected to a transducer and bedside monitor. The device includes a syringe which connects with a tube to provide an airtight test chamber. The pressure sensing end of the catheter can be inserted using sterile techniques into the test chamber through a tapered passage formed through a diaphragm on the end of the tube. A plunger can be extended into the syringe barrel to apply pressure to the test chamber. The pressure that it is applied to the catheter end is indicated on a calibrated scale imprinted on the syringe barrel for comparison with the pressure readings on the bedside monitor.
REFERENCES:
patent: 4261208 (1981-04-01), Hok et al.
patent: 4328698 (1982-05-01), Bruton
Product Bulletin--"Swan-Ganz Flow-Directed Catheters".
"The Swan-Ganz Flow-Directed Thermodilution Catheter".
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