Abstract
A low-compliance perfusion pump has been constructed to increase the bandwidth of perfused measurement systems in oesophageal manometry. This pump gives a constant flow at a high mechanical impedance by forcing the perfusion fluid through a steel capillary. With this low-compliance perfusion pump a wide bandwidth was obtained for the catheter types and perfusion flows investigated. The pump improves the accuracy of oesophageal manometry.
Sommaire
Une pompe à perfusion à faible compliance a été construite pour augmenter la bande passante du système de mesure de perfusion en manométrie oesophagienne. Cette pompe donne un débit constant à une haute impédance mécanique en forçant le fluide de perfusion à travers un capillaire en acier. Avec cette pompe à perfusion à faible compliance, on a pu obtenir une large bande passante pour les types de cathéter et débits de perfusion utilisés. Cette pompe améliore la précision de la manométrie oesophagienne.
Zusammenfassung
Es wurde eine Perfusion spumpe von geringer Nachgiebigkeit gebaut, um die Bandbreite von Perfusionsmeßsystemen bei der Speiseröhrenmanometrie zu erhöhen. Diese Pumpe liefert bei hoher mechanischer Impedanz eine konstante Strömung, indem sie die Perfusionsflüssigkeit durch ein Stahlröhrchen forciert. Mit dieser Perfusionspumpe wurde für die untersuchten Kathetertypen und Perfusionsstrome eine groxe Bandbreite erzielt. Mit Hilfe dieser Pumpe laxt sich dei Genauigkeit der Speiseröhrenmanometrie verbessern.
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Ask, P. Low-compliance perfusion pump for oesophageal manometry. Med. Biol. Eng. Comput. 16, 732–738 (1978). https://doi.org/10.1007/BF02442454
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DOI: https://doi.org/10.1007/BF02442454