https://wikianesthesia.org/w/api.php?action=feedcontributions&feedformat=atom&user=Pursuant5554WikiAnesthesia - User contributions [en]2026-04-26T18:51:29ZUser contributionsMediaWiki 1.37.1https://wikianesthesia.org/w/index.php?title=Aisys_CS2&diff=17770Aisys CS22026-01-30T22:02:30Z<p>Pursuant5554: Links & footnotes</p>
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<div>==Overview== <br />
* '''Category''' Anesthesia equipment<br />
**'''Subcategory''' Workstation<br />
**'''Model''' Aisys CS<sup>2</sup><br />
*'''Manufacturer''' GE Healthcare<br />
*'''Web site https://www.gehealthcare.com/products/anesthesia-solutions/aisys-cs2'''<br />
* '''Weight''' 168 kg<br />
*'''Pre-use checklist''' Automated electronic checklist with some manual steps<br />
*'''Electronic anesthesia record''' capable<br />
*'''Monitoring'''<br />
**Machine- Breathing circuit pressure, tidal volume, flow, spirometry (pressure-volume or flow-volume loops), airway gas monitor (infrared- nitrous oxide, anesthetic agents, capnography; oxygen analysis [paramagnetic])<br />
**Patient physiological-Generally provided with EKG, NIBP, SpO2, Temperature<br />
<br />
==Supply==<br />
*'''Power''' Electric<br />
**'''Power failure''' <br />
***Battery backup (30min heavy load; up to 90 min normal load)<br />
***Emergency O2- Needle valve & glass flowtube supplies oxygen in case of electric power loss (main & battery)<br />
<br />
*'''Gas supply''' Pipeline oxygen, air, nitrous oxide at 50 psi<br />
**'''Gas supply failure''' E tanks (one for each of the three gases) attached to yoke block behind machine<br />
<br />
==Processing==<br />
*'''Fresh gas flow''' Electronic gas mixer controls & displays flows of oxygen, nitrous oxide, air. No minimum oxygen flow.<br />
<br />
*'''Avoidance of hypoxic gas mixtures'''<br />
**Electronically controlled fail safe, hypoxic guard<br />
*'''EndTidal Control (EtC)'''<ref>{{Cite web|last=GE Healthcare|date=2024|title=End-tidal Control software:Scientific highlights|url=https://www.gehealthcare.com/-/jssmedia/gehc/us/images/products/anesthesia-delivery/aisys-cs2/redesign/whitepaper-etcontrol-arc-anesthesia-jb22327xx.pdf|url-status=live|access-date=January 30, 2026}}</ref><br />
**Closed loop control of end-tidal anesthetic agent and oxygen<br />
**Rather than set ''process'' variables (O<sub>2</sub> flow, agent percent), the user sets desired ''outcomes'' (end-tidal agent & oxygen). The EtC then selects fresh gas flows and agent concentration settings to achieve the desired outcomes. Typically EtC achieves this more quickly, with far fewer control inputs by user, and using less agent than using traditional methods <ref>{{Cite journal|last=Singaravelu|first=S.|last2=Barclay|first2=P.|date=2013|title=Automated control of end-tidal inhalation anaesthetic concentration using the GE Aisys Carestation™|url=https://linkinghub.elsevier.com/retrieve/pii/S000709121732723X|journal=British Journal of Anaesthesia|volume=110|issue=4|pages=561–566|doi=10.1093/bja/aes464|issn=0007-0912}}</ref><br />
<br />
==Delivery==<br />
*'''Breathing circuit''' <br />
**Circle type '''[''add image?'']'''<br />
**Volume 4.9 L in vent mode, 3.2 L in bag mode<ref>{{Cite web|last=GE Healthcare|date=2022|title=Aisys CS² User's Reference Manual Software Revision 11|url=https://www.gehealthcare.com/support/manuals?search=eyJzZWFyY2hUZXJtIjoiMjA5MzQ5Ni0wMDEiLCJsYW5ndWFnZU5hbWUiOiJFbmdsaXNoIChFTikifQ%3D%3D|url-status=live|access-date=January 30, 2026}}</ref><br />
**Heated? No. Usually supplied with condenser to limit humidity accumulation<br />
**Absorbent- Loose fill granules or prepackaged cassettes (800 gm).<br />
*'''Ventilator''' <br />
**Name- SmartVent 7900<br />
**Type/Principle of operation- Dual circuit, pneumatically-driven bellows ventilator with tidal volume corrected for leaks, compliance, and fresh gas flow. Ascending ("standing") bellows compressed by driving gas creates inspiratory force. Driving gas is oxygen (can switch to pipeline air if pipeline oxygen pressure loss). Variable orifice flow sensors compensate for compliance losses and leaks from their location near the breathing circuit unidirectional valves. Accurate to very low tidal volumes in volume control mode (20-1500 mL). The "bag/vent" switch activates the mechanical ventilator in one step.<br />
**Modes- Manual/Spontaneous, Volume Control, Pressure Control, PCV with Volume guarantee, PSVPro (Pressure Support with Apnea backup), Synchronized Intermittent Mandatory Ventilation (SIMV with Volume or Pressure controlled), electronic PEEP<br />
*'''Vaporizers:''' Electronic control of vaporization, uses Aladin cassettes.<br />
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==Disposal==<br />
<br />
*'''Scavenging''' Active (connected to suction) scavenger interface may be closed or open, or passive (must use closed interface).<br />
<references /></div>Pursuant5554https://wikianesthesia.org/w/index.php?title=Aisys_CS2&diff=17764Aisys CS22026-01-28T20:19:17Z<p>Pursuant5554: Building some more. Not ready for publication in any way.</p>
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<div>*'''Category''' Anesthesia equipment<br />
**'''Subcategory''' Workstation<br />
*'''Manufacturer''' GE Healthcare<br />
*'''Power''' Electric<br />
*'''Power failure''' <br />
**Battery backup (30min heavy load; up to 90 min normal load)<br />
**Emergency O2- Needle valve & glass flowtube supplies oxygen in case of electric power loss (main & battery)<br />
<br />
*'''Gas supply''' Pipeline oxygen, air, nitrous oxide at 50 psi<br />
**'''Gas supply failure''' E tanks (one for each of the three gases) attached to yoke block behind machine<br />
*'''Pre-use checklist''' Automated electronic checklist with some manual steps<br />
*Fresh gas flow<br />
Avoidance of hypoxic gas mixtures?- fail safe, hypoxic guard (active?)<br />
Vaporizers controls, type<br />
Closed loop control of Anesthetic agent, oxygen<br />
*Breathing circuit type, specifications (volume, heated)<br />
*Ventilator name, type (e.g. bellows), modes,<br />
Monitoring machine monitors, patient monitors included<br />
<br />
Scavenging<br />
<br />
Web site</div>Pursuant5554