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Repair information for the Siemens Servo Ventilator (SV) 900 C/D/E series.

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[flag|biomed]

== Background ==

The Siemens Servo 900 is a ventilator that helps a patient breathe effectively. The 900C was used to administer vaporized anesthetic gas, nitrous oxide, oxygen and air with the patient's breaths. Also being used in intensive care units for patients, the Servo 900 is used for those who needs intensive breathing support especially during times of surgery. The 900C could also be used to aid ventilation with positive end-expiratory pressure (PEEP), continuous positive airway pressure (CPAP), and negative end-expiratory pressure (NEEP). Used for children and adults, the Servo 900 also monitored a number of parameters, such as airway pressure, tidal volume, and respiratory rate. Add-on units could measure carbon dioxide production and ventilator parameters. Alarms could be set at desired values for the monitored parameters.

Source: [link|https://www.woodlibrarymuseum.org/museum/servo-anesthesia-system-900c/|Woodlibrary Museum]

== Identification ==

The Siemens Servo 900 consists of two separate rate units. Having the pneumatic unit which comprises the gas conduction system with two pressure transducers, two flow transducers and two servo values. Each of these transducers delivers values to its contributing unit. Each electronic unit comprises three controlling systems, two for regulation of inspiration and another for regulation. These controlling systems will be dependent on the controls labelled "Timing" and "MODE".

Source: [link|https://www.getinge.com/dam/hospital/documents/english/servo-900-c-d-e-service-manual-en-global-en-non_us.pdf|Getinge]

== Technical Specifications ==

* ***Power Supply***'':'' (100), 110 120 220 240 V ±10%, 50 or 60 Hz
* ***Power Consumption:*** 40 W~
* ***Working Pressure:*** Up to 120 cm H2O.
* ***Respirtory Rate:*** 5-120 breaths/minute.
* ***Airway Pressure:*** Range -20-120 cm H2O. Accuracy: ±5% or ±2 cm H2O.
* ***Modes:*** ''VOL. CONTR. (Volume controlled). VOL. CONTR. + SIGH (Volume controlled with sigh). PRESS. CONTR. (Pressure controlled). PRESS. SUPPORT (Pressure support). SIMV (Synchronized Intermittent Mandatory Ventilation). SIMV + PRESS. SUPPORT. CPAP (Continuous Positive Airway Pressure). MAN. (Manual ventilation—auxiliary equipment necessary).
* ***Weight:*** 46 LBS

== Additional Information ==

[link|https://www.woodlibrarymuseum.org/museum/servo-anesthesia-system-900c/|Wood Library Museum of Anesthesiology]

[link|https://bemesonline.com/siemens-900c-ventilator/|Siemens Servo 900 on Bemes Online]

[link|https://pubmed.ncbi.nlm.nih.gov/6989554/|Abstract on PubMed re: Siemens Servo 900]

[document|38150]

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Servo Ventilator 900 C/D/E Service Manual

Servo Ventilator 900 C Operating Manual

Siemens Servo 900 C D E Ventilator Service manual.pdf

Tsonga

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