Desirable features of a Ventilator (ICU) Function of a ventilator: 1) ICU ventilators provide artificial respiratory support to the critical patients in the Intensive Care Units. . Operational Requirements: 1) Ventilation monitoring should be suitable for New born to adult ventilation. 2) Demonstration of the equipment is a must.
What are the Technical Specifications? 1)Standard hinged arm holder for holding the circuit. 2) Colored TFT(Thin film transistor) screen, 12 Inch. 3) Trending facility for 72 hours with minimum 5 minutes resolution for recent 24 hours. 4) Automatic compliance & Leakage compensation for circuit and ET Tube. 5) Backup ventilation is necessary. 6) Expiratory block should be autoclavable and no routine calibration is required. 7) Automatic Patient Detection facility preferable. 8) Medical Air Compressor. 9) Battery back up should be for minimum 1 hour. 10) RS 323C interface for communications with networked devices.
Ventilator should have Facility to measure and display: 1) End tidal CO2. 2) 3 waves- Pressure and Time, Volume and Time and Flow and time. 3) 3 loops- P-V, F-V, P-F with facility of saving of 3 Loops for reference. 4) Graphic display to have automatic scaling facility for waves 5) Status indicator for Ventilator mode, Battery life, patient data, alarm settings, clock etc
Ventilator should have following settings for all age groups: 1) Tidal Volume 2) Pressure 3) Pressure Ramp 4) Respiratory Rate 5) SIMV Respiratory Rate 6) CPAP(continuous positive-airway pressure) 7) Pressure support 8) Pause Time 9) Pressure & Flow Trigger
Ventilator should Monitor of the following parameters: 1) Airway Pressure (Peak & Mean) 2) Tidal volume (Inspired & Expired) 3) Minute volume (Inspired and Expired) 4) Spontaneous Minute Volume 5) Total Frequency 6) FIO2 dynamic 7) Intrinsic PEEP (Positive end-expiratory pressure) and PEEPi Volume 8) Plateau Pressure 9) Resistance & Compliance 10) Use selector Alarms for all measured & monitored parameters
Various modes of ventilation: 1) Volume controlled 2) Pressure Controlled 3) Pressure Support 4) SIMV (Pressure Control and volume control) with pressure support 5) CPAP(continuous positive-airway pressure) 6) Inverse Ratio Ventilation 7) Advanced mode like pressure controlled volume guaranteed 8) Non Invasive ventilation 9) APRV (Airway pressure release ventilation)
Ventilator should calculate: 1) Intrinsic Peep(Positive end-expiratory pressure) & Intrinsic PEEP Volume. 2) Occlusion Pressure 3) Spontaneous Breathing trial 4) Facility to calculate lower and upper inflection point .
Technical Specifications for reusable face mask & nasal mask: 1)Reusable face & nasal mask with textured dual flap silicone cushion flap for easy fit. 2) Removable forehead support and pad to match the angle of patient’s forehead 3) Stability Selector for easy fit and angle. 4)Ball & Socket headgear attachments.
System Configuration Accessories and spare parts: 1) ICU Ventilator - 01 2) Adult and Paediatric autoclavable silicone breathing circuits – 02 each 3) Reusable Masks (Small, Medium, Large) with each machine. 02 sets each 3) Medical Air Compressor-01
4) Humidifier -Servo controlled with digital monitoring of inspired gas temperature complete with heating wire - 02 5)Filter paper for humidifier for 100 uses – 01
Environmental factors necessary: 1)The unit shall be capable of being stored continuously in ambient temperature of 0 -50 deg C and relative humidity of 1590% 2) Requirements of Safety for Electromagnetic Compatibility. 3)The unit shall be capable of operating continuously in a temperature of 10 - 40deg C and humidity of 15-90%
Power Supply: 1) Power input to be 220-240VAC, 50Hz 2) Suitable Servo controlled Stabilizer. 3) Resettable overcurrent breaker shall be fitted for protection 4) Suitable UPSs for minimum onehour back up should be supplied with the system.
Standards, Safety and Training required: 1) Certified to be compliant with ANS/IEC60601.2.1201 Medical Electrical Equipment—Part 2-12; Particular Requirements for the Safety of Lung Ventilators— Critical Care Ventilators 2) Should be FDA (Food and Drug administrator) 3) Certified for Oxygen monitoring. 4) Should be perfect for enclosure protection, water ingress. 5) Demonstration of quoted equipment model is a must. 6) Should have local service facility .The service provider should have the necessary equipments recommended by the manufacturer to carry out preventive maintenance test. 7) Comprehensive warranty for 5 years. 8) Back to back warranty to be taken by the supplier from the principal to supply spares for a minimum period 10 years.
Documentation: 1)Certificate of calibration and inspection from factory. 2) List of equipment’s available for providing calibration and Maintenance support as per manufacturer documentation in service / technical manual. 3) User Manual in English. 4) Service manual in English. 5) Log book with instructions for daily, weekly, monthly and Quarterly maintenance checklist. 6) List of important spare parts and accessories with their part number and costing. 7) Must submit user list and performance report within last 5 years from major hospitals. 8) Back to back comprehensive warranty to be taken by the supplier from the principal to supply spares for minimum 10 years.