E-cylinder
From WikiAnesthesia
Revision as of 08:42, 12 January 2022 by Chris Rishel (talk | contribs) (Reorganized, added physical properties)
An e-cylinders is a type of gas cylinder used for storage and containment of gases. In anesthesia, e-cylinders are typically used for delivery of fresh gases to the anesthesia machine in case of pipeline gas pressure failure. E-cylinders uses the pin index safety system (PISS) that ensures the correct placement of cylinders of a particular type of gas into the right location in the anesthesia machine.
| Gas | Cylinder Color (USA) | Full Tank Volume (L) | Full Tank Pressure (PSI) |
|---|---|---|---|
| Oxygen | Green | 660 | 2200 |
| Nitrous Oxide | Blue | 750 | 1590 |
| Air | Yellow | 625 | 1800 |
Unlike other gas cylinders, nitrous oxide is pressurized in liquid form, and therefore the pressure (psi) remains the same up until about 1/4 capacity (~400L).
Physical properties
| Diameter | 100 mm (4 in) |
|---|---|
| Height | 660 mm (26 in) |
| Empty weight | 6.4 kg (14 lb) |
| Internal volume (21 °C, 1 atm) | 4.5 L (0.16 ft3) |
Top contributors: Tymoteusz Kajstura, Chris Rishel and Tony Wang