Datascope - Mindray

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Theory of Operation The Breathing System 1.9.5 Pneumatic PEEP The PEEP valve regulates the pressure at which the exhaust valve opens, therefore the exhaust valve opens only when the pressure exceeds the set PEEP pressure. 1.9.6 Ventilator in Standby When the AS3000 is in the standby mode, monitoring will be inactive, The patient should not be ventilated when the system is in standby mode. 1.9.7 Breathing System Components 1.9.7.1 Ventilation Bellows System The ventilator's driving system is a flow generator. Driving gas fills the bellows dome to compress the bellows. The breathing gas is pressed out of the bellows into the patient breathing circuit. The bellows is refilled with fresh gas and the expired gas from the patient. 1.9.7.2 Manual Breathing Bag In manual mode, this device acts as a normal breathing bag, enabling the user to ventilate the patient manually. In mechanical ventilation mode, this bag is cut off from the breathing circuit by the reversing valve. 1.9.7.3 CO 2 Absorber The soda lime inside the absorber retains the carbon dioxide from the exhaled gas. The AS3000 accommodates standard sized Pre-Paks or loose-fill CO2 absorbent. 1.9.7.4 Inspiratory and Expiratory Valves To ensure correct gas flow direction to and from the patient, one-way-valves are integrated in the inspiratory and expiratory limb of the Breathing System. 1.9.7.5 APL (Airway Pressure Limiting) valve In manual mode, the APL Valve acts as a normal spring loaded pressure relief valve, limiting the maximum pressure in the Breathing System. AS3000 Service Manual 0070-10-0683 1 - 39
The Breathing System Theory of Operation This page intentionally left blank. 1 - 40 0070-10-0683 AS3000 Service Manual
Page 1 and 2: Datascope AS AnesthesiA Delivery sy
Page 3 and 4: AS3000 is a U.S. trademark of Mind
Page 5 and 6: Table of Contents Manual Breathing
Page 7 and 8: Table of Contents System Self Test.
Page 9 and 10: Table of Contents This page intenti
Page 11 and 12: Introduction Cautions WARNING: Comp
Page 13 and 14: Introduction Notes This page intent
Page 15 and 16: Microprocessor-controlled Ventilato
Page 17 and 18: Components Theory of Operation 3. U
Page 19 and 20: Components Theory of Operation 14.
Page 21 and 22: Components Theory of Operation 26.
Page 23 and 24: Components Theory of Operation 1.3.
Page 25 and 26: Ventilator Control and Drive Theory
Page 43 and 44: Anesthesia System Components Theory
Page 45 and 46: Ventilator UI Theory of Operation F
Page 47 and 48: Ventilator UI Theory of Operation 1
Page 49 and 50: Ventilator Pneumatic - O 2 Drive Ga
Page 51: The Breathing System Theory of Oper
Page 55 and 56: Assembly Installation Guide 2.2 Ass
Page 57 and 58: Assembly Installation Guide 2. Atta
Page 59 and 60: Assembly Installation Guide 2.2.11
Page 61 and 62: Installation Checkout Procedure Ins
Page 81 and 82: Warnings and Cautions Repair Inform
Page 83 and 84: 3 - 4 0070-10-0683 AS3000 Service M
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Page 99 and 100: Available Replacement Parts and Sub
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Isometric Drawings Replacement Part
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Calibration Warnings, Precautions,
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General Guidelines Calibration 5.3
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Calibration Procedures Calibration
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Periodic Maintenance Schedule of Se
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Check Valve Cleaning Periodic Maint
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Functional Tests Periodic Maintenan
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Preoperative Checklist Periodic Mai
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Phone Numbers and How To Get Assist
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Disclaimers Warranty No agent, empl
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0070-10-0683 Rev J January 11, 2011
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Datascope - Mindray

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