Use of a needle valve variable resistor to improve invasive blood pressure monitoring

Use of a needle valve variable resistor to improve invasive blood pressure monitoring

Inaccurate measurements using in-line systems are partly due to the resonance frequency. A variable acoustic resistor designed to change the damping coefficient of these monitoring systems was evaluated under clinical conditions. The device improved pressure transmission characteristics in measureme...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Critical care medicine 1984-11, Vol.12 (11), p.978-982
Hauptverfasser: ABRAMS, JEROME H, OLSON, MARK L, MARINO, JOSEPH A, CERRA, FRANK B
Format: Artikel
Sprache:eng
Schlagworte:
Blood Pressure Determination - instrumentation
Catheterization
Critical Care
Humans
Monitoring, Physiologic - instrumentation
Transducers
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Inaccurate measurements using in-line systems are partly due to the resonance frequency. A variable acoustic resistor designed to change the damping coefficient of these monitoring systems was evaluated under clinical conditions. The device improved pressure transmission characteristics in measurements on 12 of 13 patients. Use of the device and of the bedside step-impulse test for calibration should improve the reliability of inline blood pressure monitoring.
ISSN:0090-3493
1530-0293
DOI:10.1097/00003246-198411000-00013