Evaluation: GE Healthcare Avance CS2 Anesthesia Unit for General-Purpose and Low-Acuity/Ambulatory Surgery Applications
November 30, 2020 | Evaluations & Guidance
Preview
- The Avance CS2 is used for general anesthesia during surgery for the entire range of patients (neonates through adults).
- The unit can also be used to provide supplemental oxygen (O2—typically via a nasal cannula or loose-fitting mask) and capnography during monitored anesthesia care (MAC).
- Major components and features:
- Minimum dimensions (D × W): 86 × 81 cm (41 × 39 in)
- Ventilator and breathing system
- 1,500 mL ascending bellows
- Uses fresh gas compensation to prevent changes in fresh gas flow from affecting delivered tidal volumes
- Automatically compensates for breathing circuit compliance (breathing circuit compliance must be measured at the start of each case or if the circuit is changed during a case)
- Bellows are located in the back of the breathing system assembly on the left side of the unit.
- Volume during manual ventilation: 1.63 L (including absorber canister and optional condenser)
- Volume during automatic ventilation: 3.145 L (including absorber canister, optional condenser, and bellows)
- Fresh gas controls
- Electronic controls on main display for balance gas (air or nitrous oxide; O2 is always the primary gas), total fresh gas flow rate, and O2 concentration
- Fresh gas flow settings are: off (when unit is in standby) or 0.15 to 15 L/min.
- Fresh gas controls do not work when the device experiences a total electrical failure. Emergency O2 controls (see below) allow delivery of O2 in such circumstances.
- Alternate O2
- Since this unit has an electronic mixer, a physical control for O2 is needed in the event of a total electrical failure.
- Alternate O2 is a physical flow valve and meter that provides 0.5 to 13 L/min of O2 when activated.
- Alternate O2 does not bypass the vaporizers, and agent is still delivered when it is used.
- User activation of Alternate O2 is performed by pressing the recessed button adjacent to the flow control (pressing the button also disables the electronic mixer). Automatic activation occurs in the event of an electronic mixer failure or total electrical failure.
- Controls are located in the center front of the unit, below the vaporizer bay.
- Vaporizers
- The Avance CS2 works only with Selectatec-style vaporizers (Tec 6 plus or greater).
- The unit can have two or three active vaporizer mounts.
- Absorber
- EZchange disposable canister
- A bypass valve allows absorbent to be changed during a case without introducing a leak into the breathing system.
- The canister is located under the main work surface on the left side of unit.
- Illumination
- The unit has lights on the underside of the top shelf that shine onto the work surface and illuminate the vaporizer control dials.
- Variable brightness is controlled with a knob.
- Auxiliary O2
- Delivers a metered flow of pure O2 (0 to 10 L/min) that does not go through the normal fresh gas flow path
- Auxiliary O2 is typically used with a nasal cannula or loose-fitting mask.
- Physical flow valve and tube are located on the left front of unit, near the bellows.
- Work surface
- Main work surface (D × W): 33 × 43 cm (13 × 17 in)
- Foldable shelf (D × W): approximately 34 × 27 cm (13.5 × 10.5 in), located on the right side of the unit
- Drawers—two drawers:
- Top drawer (H × D × W): 17 × 29 × 33 cm (6.5 × 11.5 × 13 in)
- Bottom drawer (H × D × W): 18 × 29 × 33 cm (7 × 11.5 × 13 in)
- Drawers do not lock and come with two removable trays for additional organization options
- Auxiliary power outlets
- One 3 A outlet and three 2 A outlets protected by circuit breakers on the top back of the unit
- The outlets work when the unit is powered off.
- Backup cylinder yokes
- Three pin-indexed yokes on the back of the unit
- These yokes can be configured so that two are for O2, which is useful since O2 is both used as a drive gas to power the bellows and delivered to the patient as fresh gas.
- Electronic interfaces
- Two nine-pin serial ports for interface with electronic systems
- One USB interface for downloading event logs, copying or loading device configurations, and loading software
- Ethernet connection
- All interfaces are on the back of the main display.
- GCX-mount-compatible rails—two rails, one on each side of the unit