منابع مشابه
Rebreathing in a Double T-piece System by Anis Baraka, Bernard Brandstater, Musa Muallem and Cecile Seraphim Summary
A double T-piece paediatric system is described. During spontaneous respiration, the system will perform like a Magill system if the fresh gas flow is delivered via the distal T-piece; the proximal T-piece will provide an outlet. During controlled ventilation the set will perform like a Rees system if the fresh gas flow is delivered via the proximal T-piece; the distal T-piece will provide a co...
متن کاملThe Effect of the Respiratory Flow Pattern on Rebreathing in a T-piece System.
The effect of the respiratory flow pattern on the fresh gas flow required to prevent rebreathing in a T-piece system was investigated using laboratory models. With a sine wave pattern slighdy less than 2\ times the minute volume was necessary. Widi the flow patterns produced by the ventilators studied, up to 3 times the minute volume was required. It is suggested that during artificial ventilat...
متن کاملScavenging of anaesthetic gases using the double T-piece system.
fully expected but it is inappropriate, for the following reasons: Considerably less halothane is given when a caudal block is performed than during a general anaesthetic alone. After the blocking procedure, just sufficient general anaesthetic was given to prevent the child from disturbing the surgeon. For this purpose nitrous oxide in oxygen was sufficient in the majority of patients. It does ...
متن کاملThe Advantages of a Combined T-piece and Non-rebreathing Valve: a Simple Device.
Ayre's T-piece. The Ayre's T-piece (Ayre, 1937) has a very low resistance, is simple, and almost trouble-free. Intermittent positive pressure respiration (IPPR) can be induced by occluding the exhalation reservoir tube intermittently with one finger. However, the pressure, volume, and riming of lung inflation depends on the flow of gases from the anaesthetic machine and the duration of finger o...
متن کاملRebreathing in a T-piece: volunteer and theoretical studies of the Jackson-Rees modification of Ayre's T-piece during spontaneous respiration.
The Jackson-Rees modification of Ayre's T-piece was examined experimentally and theoretically to see what effects the theoretical restrictions of Onchi, Hayashi and Ueyama (1957) (1:1 I:E ratio, zero deadspace volume) and the square-wave approximation of Mapleson (1958) may have had on the calculated critical fresh-gas flow rate necessary to prevent rebreathing of exhaled alveolar gases. In the...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1969
ISSN: 0007-0912
DOI: 10.1093/bja/41.1.47