GE Datex-Ohmeda Lot# 4901 Bellows Subassy Adult ABA W Disk Ring
Bumpers 1500-3378-000 for Datex-Ohmeda 7100 Anaesthesia machine
► Brief Introduction
The Bellows assembly is the interface between drive gas and the
patient circuit in the breathing system. The pressure relief valve
(or pop-off valve) in the bellows assembly limits pressure in the
patient circuit. Excess fresh gas is discharged through the
exhalation valve into the gas scavenging system.
The Bellows Pressure Relief Valve (PRV) is normally closed,
maintaining approximately 1.5 cm H2O in the breathing circuit in a
no flow condition, enough to keep the bellows inflated. It is
piloted closed during inspiration and remains closed until the
bellows is refilled during exhalation. If the pressure in the
patient circuit exceeds 4 cm H2O, the pop-off valve opens to
exhaust excess fresh gas flow at a rate up to 4 L/min
► Inspiratory ValveCalibration
1. Remove the bellows and pressure relief valve (pop-off) from the
bellows assembly.
- Remove the bellow housing.
- Remove the bellows and bellows mounting rim as an assembly.
- Remove the pressure relief valve.
- Replace the bellows housing.
- Note: If you have just completed the PEEP Valve Calibration, remove
these parts from the bellows assembly and then reassemble the
breathing system.
2. Attach a patient circuit tube to the Calibrated Flow Orifice
test tool.
3. Connect the open end of the patient circuit tube to the inspiration flow patient connection.
4. Set the Bag/Vent switch to Vent.
5. Establish drive gas for the ventilator.
6. Adjust fresh gas flow so the actual Airway Pressure reads 1.05
cm H2
► Breathing circuit parameters
| Compliance: | Bag mode: | 1.82 mL/cm H2O |
| Mechanical mode: | Automatically compensates for compression losses within the
absorber and bellows assembly |
| Circuit volume: | 2.7 L Vent Mode
1.2 L Bag Mode |
► Calibration setup
1. Remove the ABS breathing system from the machine.
2. Remove the Exhalation Valve.
3. Separate the Bellows Module from the Circuit Module.
4. Install the Circuit Module only.
5. Attach a patient circuit tube to the Calibrated Flow Orifice
test tool.
6. Insert the Calibrated Flow Orifice into the manifold (PEEP)
port.
7. Connect a pressure sensing tee to the inspiration flow patient
connection.
8. Connect the open end of the patient circuit tube to the flow
port of the pressure sensing tee.
9. Connect a manometer to the pressure sensing port of the tee
connector.
► Quality Guarantee
Our company have one division of labour on the basis of
specialization, highly cooperative group, rich technical force of
medical machines development. Our expert team provides prompt,
dependable solutions for sales and repairs on patient monitor,
defibrillator machine, ECG/EKG machine and other accessories or
repair parts. We have been always focusing on producing superior
products and providing first-class customer service.
What calls for special attention is that there are both brand new
and second-hand products for sell. Please remember to carefully
distinguish them when placing your orders. Otherwise, it will cause
unnecessary troubles. If you have any doubts about the product
quality, please don’t hesitate to contact us.
Thank you for your time! If you are interested in EDAN F2 F3 F6 F9 US Transducer 8 ultrasound crystals 1 Mhz pink
label cable MS3-109301(D) REF 02.01.109301 MPN 02.01.109301017
(01)06944413805484 (21)H22101060151. Please feel free to contact me, if your are interested in any of
products.
