1.
Eur J Anaesthesiol
; 20(9): 740-4, 2003 Sep.
Article
in English
| MEDLINE
| ID: mdl-12974597
ABSTRACT
BACKGROUND AND OBJECTIVE: This study investigated the distribution of pressures within a model trachea, produced by five different tracheal gas insufflation devices. The aim was to suggest a suitable design of a tracheal gas insufflation device for clinical use. METHODS: Each device was tested using insufflation flow rates of 5 and 10 L min(-1). For each flow rate, the pressure within the tracheal model was measured at 33 fixed points. RESULTS: The Boussignac tracheal tube produced the most even pressure distribution, while a reverse-flow catheter produced pressure changes of the smallest magnitude. CONCLUSIONS: We suggest that catheters producing the lowest pressure changes are likely to be safer for clinical use.
Subject(s)
Catheterization/instrumentation , Insufflation/instrumentation , Models, Anatomic , Respiration, Artificial/instrumentation , Trachea/physiology , Catheterization/adverse effects , Equipment Design , Humans , Models, Biological , Pressure , Safety
2.
Anaesthesia
; 57(12): 1215-6, 2002 Dec.
Article
in English
| MEDLINE
| ID: mdl-12437715