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An asymmetric dialy...
An asymmetric dialysis tube as an integrated part of a pressure-monitoring sensor
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- Andersson, Roger, 1967- (författare)
- Linköpings universitet,Institutionen för medicinsk teknik,Tekniska högskolan
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- Ask, Per, 1950- (författare)
- Linköpings universitet,Institutionen för medicinsk teknik,Tekniska högskolan
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(creator_code:org_t)
- 2001
- 2001
- Engelska.
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Ingår i: Technology and Health Care. - 0928-7329 .- 1878-7401. ; 9:5, s. 417-425
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Abstract
Ämnesord
Stäng
- A sensor has been designed consisting of a tube holder with a force transducer and a tube with a modified cross-section. The holder has a lid that encloses the tube. By having a stiff holder and a compliant tube, the idea is that the intraluminal pressure in the tube can be obtained from the measured force. The method is intended for non-invasive pressure measurements in blood or dialysate tubes.We have used a tube cross-sectional geometry where the outer surface is elliptic and the inner surface is circular with a relation of 2:1 between the thinnest and thickest tube sides. The pressure transducer system shows a linear relationship between the applied pressure and the sensor output (r = 0.999). Within the temperature range, 32°–36°C, which corresponds to the blood and dialysate temperatures, the sensor accuracy is within ±0.8 kPa (±6 mm Hg). This indicates that the sensor should be clinically useful during dialysis and similar applications.
Nyckelord
- Non-invasive pressure sensor
- asymmetric tube
- dialysis
- extracorporeal tube
- profile analysis
- MEDICINE
- MEDICIN
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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