crwdns2931319:0crwdne2931319:0 Ohmeda 7900

crwdns2936315:0crwdne2936315:0

crwdns2944436:0crwdne2944436:0

crwdns2935115:0crwdne2935115:0

crwdns2916828:0crwdne2916828:0

Repair guides and service information for the Aestiva 7900 ventilator. Replaces an ICU ventilator when anesthesia is necessary.

crwdns2935119:0crwdne2935119:0

[flag|biomed]

== ***Background and Identification*** ==

The Datex-Ohmeda Aestiva/5 7900 anesthesia ventilator is an electronically controlled, pneumatically driven ventilator with integrated monitoring systems for inspired oxygen, airway pressure, and exhaled volume. It is a component of the Aestiva Anesthesia Machine and is designed to assist in delivery of anesthesia. The primary advantage of using the Aestiva system is that it negates the need to bring a full ICU ventilator into the OR, preserving some capabilities in order to provide patients with a steady supply of air.

The Aestiva 7900 is available with multiple optional features, such as two additional ventilation modes. It is designed as a highly modular system; the ventilator can be used without the anesthesia, and different components can be easily swapped in and out. The device also compensates for tidal volume, easily switches from mechanical ventilation to manual ventilation with the flick of a switch, and supports a cardiac bypass mode for when the patient is on a heart/lung machine.

Ease of maintenance is a priority regarding the Aestiva anesthesia system. Components can be disassembled without any tools, the entire patient breathing system is latex-free and autoclavable, and only two maintenance checks are required per year. In addition, the system is significantly shorter than many others on the market, offering extra room to maneuver.

The Aestiva 7900 is part of the Aestiva/5 system, which can be recognized by the prominent branding on the top section of the device.

== Additional Information ==

[https://services.gehealthcare.com/gehcstorefront/|GE Service Storefront]

[https://umanitoba.ca/faculties/health_sciences/medicine/units/anesthesia/media/Datex_Ohmeda_S5_Aestiva_-_Technical_reference.pdf|Aestiva/5 Technical Manual]

[https://www.youtube.com/watch?v=CW2vnKDwWC4|Basic Aestiva/5 Checkout]

== ***Technical Specifications*** ==

* Use Ctrl+F to find specific information.

=== ***Physical Characteristics*** ===

* Main unit:
** Weight: 136 kg/300 lb two-vaporizer, 154 kg/340 lb       three-vaporizer
** Height: 135.8 cm/53.4 in
** Width: 75 cm/29.5 in two-vaporizer, 93 cm/36.6 in       three-vaporizer
** Depth: 83 cm/32.7 in
* Top shelves (optional):
** Weight limit: 46 kg/100 lb
** Width: 47.5 cm/18.7 in 2-vaporizer, 67.5 or 87.5       cm/26.6 or 34.4 in 3-vaporizer
** Depth: 41 cm/16.1 in
* Work surface:
** Height: 87.6 cm/34.5 in
** Width: 47 cm/18.5 in
** Depth: 31.5 cm/12.4 in
* Folding side shelf (optional):
** Height: 87.5 cm/34.5 in
** Width: 26.5 cm/10.4 in
** Depth: 31.5 cm/12.4 in
** Weight limit: 11.3 kg/25 lb
* DIN rail (optional):
** Side of tabletop: 30 cm/12 in
** Side of machine: 23.5 cm/9.25 in
* Top drawer (1 standard) - locking (internal      dimensions):
** Height: 10.5 cm/4.1 in
** Width: 38.5 cm/15.2 in
** Depth: 26 cm/10.2 in
* Lower drawers (optional):
** Height: 14.5 cm/5.7 in
** Width: 38.5 cm/15.2 in
** Depth: 26 cm/10.2 in
* Lower shelves (optional):
** Heights:
*** 9.2 cm/3.7 in
*** 13.2 cm/5.2 in
*** 20.6 cm/8.2 in
*** 24.6 cm/9.8 in
*** 28.6 cm/11.4 in
*** 36 cm/14.4 in
** Width: 42.5 cm/16.75 in

=== ***Ventilator Specifics*** ===

* Modes: Volume Control, Pressure Control,
* Tidal volume range: 20-1500 mL in Volume Control and      SIMV modes, 5-1500 mL in Pressure Control Mode
* Incremental settings:
** 20-100 mL, increments of 5 mL
** 100-300 mL, increments of 10 mL
** 300-1000 mL, increments of 25 mL
** 1000-1500 mL, increments of 50 mL
* Minute volume range: 0 to 99.9 L/min
* Pressure inspired range: 5 to 60 cm H2O, increments of      1 cm
* Pressure limit range: 12 to 100 cm H2O, increments of 1      cm
* Pressure support range: 2 to 40 cm H2O, increments of 1      cm
* Rate:
** 4 to 100 breaths per minute for Volume Control and       Pressure Control
** 2 to 60 breaths per minute for SIMV, PSVPro and       SIMV-PC+PSV, increments of 1 breath per minute
* Inspiratory/expiratory ratio: 2.1 to 1.8, increments of      0.5
* Inspiratory time: 0.2 to 5.0 seconds, increments of 0.1      seconds, SIMV and PSV Pro only
* Trigger window: 0 to 80%, increments of 5%
* Flow trigger:
** 0.2 to 1.0 L/min, increments of 0.2 L/min
** 1 to 10 L/min, increments of 0.5 L/min
* Inspiration termination level: 5 to 75%, increments of      5%
* Backup mode delay: 10 to 30 seconds, increments of 5      seconds
* Positive End Expiratory Pressure (PEEP):
** Integrated and electronically controlled
** Range: OFF, 4 to 30 cm H2O, increments of 1 cm H2O
* Ventilator performance:
** Pressure range at inlet: 240 kPa to 700 kPa/35 psig to       100 psig
** Peak gas flow: 120 L/min + fresh gas flow
** Flow valve range: 1 to 120 L/min
** Flow compensation range: 200 mL/min to 15 L/min
* Ventilator monitoring:
** Expiratory minute volume range: 0 to 99.9 L/min
** Expiratory tidal volume range: 0 to ≥ 1500 mL
** O2 %: ≤ 5% to 110%
** Peak pressure: -20 to 120 cm H2O
** Mean pressure: -20 to 120 cm H2O
** Plateau pressure: 0 to 120 cm H2O
** Pressure waveform sweep speeds:
*** 4 to 25 breaths per minute (0 to 15 seconds)
*** 26 to 75 breaths per minute (0 to 5 seconds)
*** 75 breaths per minute (0 to 3 seconds)

=== ***Ventilator Accuracy*** ===

* Delivery/monitoring accuracy:
** Volume delivery:
*** > 210 mL = better than 7%
*** < 210 mL = better than 15 mL
*** < 60 mL = better than 10 mL
** Pressure delivery: ±10% or ±3 cm H2O
** PEEP delivery: ±1.5 cm H2O
** Volume monitoring:
*** > 210 mL = better than 9%
*** < 210 mL = better than 18 mL
*** < 60 mL = better than 10 mL
** Pressure monitoring: ±5% or ±2 cm H2O
* Alarm settings:
** Tidal volume:
*** Low: OFF, 0 to 1500 mL
*** High: 20 to 1600 mL, OFF
** Minute volume:
*** Low: OFF, 0 to 10 L/min
*** High: 0 to 30 L/min, OFF
** Inspired oxygen:
*** Low: 18 to 100%
*** High: 18 to 100%, OFF
** Apnea alarm:
*** Mechanical ventilation ON: < 5 mL breath measured        in 30 seconds
*** Mechanical ventilation OFF: < 5 mL breath measured        in 30 seconds
** Low airway pressure: 4 cm H2O above PEEP
** High pressure: 12 to 100 cm H2O (increments of 1 cm)
** Sustained airway pressure:
*** Mechanical ventilation ON:
**** Pressure limit < 30 cm H2O, the sustained limit         is 6 cm H2O
**** Pressure limit 30 to 60 cm H2O, the sustained limit         is 20% of pressure limit
**** Pressure limit > 60 cm H2O, the sustained limit         is 12 cm H2O
*** PEEP and mechanical ventilation ON:
**** Sustained limit increases by PEEP minus 2 cm H2O
*** Mechanical ventilation OFF:
**** Pressure limit ≤ 60 cm H2O, the sustained limit is         50% of pressure limit
**** Pressure limit > 60 cm H2O, the sustained limit         is 30 cm H2O
** Subatmospheric pressure: Mean airway pressure < -10       cm H2O
** Alarm silence countdown timer: 120 to 0 seconds

=== ***Ventilator Components*** ===

* Flow transducer:
** Type: Variable orifice flow sensor
** Dimensions: 22mm OD and 15mm ID
** Location: Inspiratory outlet and expiratory inlet
** Optional autoclavable sensor available
* Oxygen sensor:
** Type: Galvanic fuel cell
** Life cycle: approx. 18 months, dependent on usage
* Anesthetic agent delivery:
** Vaporizers supported: Tec 4, Tec 5, Tec 6 Plus, Tec 7
** Positions: 2 or 3
** Mounting: Tool-free installation ‘Selectatec®’       manifold interlocks and isolates vaporizers

=== ***Electrical Specifications*** ===

* Current leakage at 120 V: < 300 micro-amperes
** Light package:
*** Task light: 12V, 3 lamps, type 194, .270A each
*** Gooseneck (optional): 12V, type 1815, .200A
** Power and battery backup:
*** Input: 120VAC, 60Hz, 10A
*** Backup power: Demonstrated battery backup time under        typical operating conditions is 45 minutes when fully charged
*** Battery type: Internal rechargeable sealed lead acid
*** Power cord:
**** Length: 5 m/16.4 ft
**** Rating: 15A @ 120VAC
** Communication port: Isolated RS-232C compatible serial       port
** 120VAC inlet/outlet modules:
*** System circuit breakers: No outlets 5A w/ outlets 10A
*** Optional outlets: 4 on back, 3-2A, 1-3A individual        breakers and 1-5A combined outlet breaker, optional isolation        transformer
*** Optional auxiliary outlet box: 5 NEMA outlets on        dovetail-mounted box, 5-2A breakers, isolation transformer
*** Tec 6 Plus outlet: 1 IEC 320 located above vaporizer        backbar

=== ***Pneumatic Specifications*** ===

* Internal common gas outlet: ISO 22mm OD and 15mm ID
* Optional auxiliary common gas outlet: 22mm OD and 15mm      ID
* Gas supply:
** Pipeline input range: 240 kPa to 600 kPa/35 psig to 88       psig
** Pipeline connections: DISS-male. All fittings       available for O2, N2O and Air, and contain pipeline filter and check       valve.
** Cylinder input: Pin indexed in accordance with       CGA-V-1, contains input filter and check valve. One oxygen required,       maximum 5 total cylinders.
** Primary regulator diaphragm minimum burst pressure:       2758 kPa/400 psig
** Primary regulator nominal output: < 338 kPa/49       psig, pin indexed cylinder connections
* Gas power outlet (optional):
** Connector is DISS indexed in accordance with CGA-V-5
** Oxygen gas
** Pressure and flow characteristics vary with source
* O2 controls:
** Method: Proportionate decrease of N2O, CO2, O2/He with       reduction in O2 pressure
** Supply failure alarm:
*** Range: 193 kPa to 221 kPa/28 psig to 32 psig
*** Sounds at max volume every 10 seconds
** O2 flush: Range 35 to 50 L/min
** Flowmeters:
*** O2 ranges:
**** Two tubes: 0.05 to 0.95 L/min and 1 to 15 L/min
**** Minimum O2 flow: 50 mL/min ± 25 mL
*** N2O ranges:
**** Two tubes: 0 to 0.95 L/min and 1 to 10 L/min
*** Air range:
**** One tube option: 1 to 15 L/min
**** Two tube option: 0 to 0.95 and 1 to 15 L/min
**** Low flow tube optional
*** CO2 (optional): 0 to 0.5 L/min, one tube
*** Heliox range (optional): 0 to 15 L/min, one tube
*** Calibration scale:
**** 100% flowrate: ±2.5% accurate
**** 90% flowrate: ±2.5% accurate
**** 80% flowrate: ±2.6% accurate
**** 70% flowrate: ±2.7% accurate
**** 60% flowrate: ±2.9% accurate
**** 50% flowrate: ±3.1% accurate
**** 40% flowrate: ±3.4% accurate
**** 30% flowrate: ±4.0% accurate
**** 20% flowrate: ±5.0% accurate
**** 10% flowrate: ±8.1% accurate
**** Calibrated at 20 C/68 F, 101.3 kPa/760 mmHg.         Different breathing circuit pressures, barometric pressures and         temperatures change flowtube accuracy.
* Hypoxic guard system:
** Mechanical Link-25
** Provides nominal 25% concentration of oxygen in any       O2/N2O mixture

All materials in contact with patient gas free of natural rubber latex.

=== Environmental Specifications ===

* System operation:
** Temperature: 10 to 40 C/50 to 104 F
** Humidity: 15 to 95% relative humidity (non-condensing)
** Altitude: -440 to 3565 m/500 to 800 mmHg
** System storage temperature: -25 to 65 C/-13 to 149 F
** System storage humidity: 10 to 100% relative humidity       (including condensing)
** System storage altitude: -440 to 5860 m/375 to 800       mmHg
** Oxygen cell storage:
*** -15 to 50 C/5 to 122 F
*** 10 to 95% relative humidity
*** 500 to 800 mmHg
* Electromagnetic compatibility:
** Complies with all requirements of EN 60601-1-2
** CISPR 11 group 1 class B emissions
** UL 2601-1, CSA C22.2 #606.1, IEC 601-1, EN 60601-1

crwdns2935103:0crwdne2935103:0

crwdns2935105:05crwdne2935105:0 crwdns2935109:0crwdne2935109:0

Aestiva 7900 TechnicalManual

Aestiva 7900 Service Manual

Aestiva 7900 Datasheet

Aestiva/5 Operations Manual Part 2

Aestiva/5 Operations Manual Part 1

Tsonga

crwdns2944436:0crwdne2944436:0

crwdns2935115:0crwdne2935115:0

crwdns2916828:0crwdne2916828:0

crwdns2935119:0crwdne2935119:0

crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0