title: Performance characteristics of pressure infusors.
abstract: Pressure infusion devices (PID) are used in trauma hospitals and in military applications to enhance rapid fluid replacement of hypovolemic shocked patients. This work presents a simple inexpensive technique for evaluation of the performance characteristics of pressure infusors. Pressure-volume and volume-time curves of pneumatic and spring-activated infusors have been derived for pressurized infusion with various output resistances. Three indices of performance are suggested for evaluation of pressure infusors: the energy of discharge fluid from the bag, efficiency index and time required to empty 50% of the bag.
authors.affiliation: Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel.
authors.forename: U
authors.initials: U
authors.lastname: Zaretsky
authors.affiliation: Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel.
authors.forename: O
authors.initials: O
authors.lastname: Heller
authors.affiliation: Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel.
authors.forename: D
authors.initials: D
authors.lastname: Elad
keywords: Hypovolemic shock; Pressure infusion device; Rapid fluid resuscitation