OmniVent Series D

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Omni-Vent Series D

• by
• Bryce Younger

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Instructions

• Click inside RED squares to access information on
  that part of ventilator
• Click on to go to next slide
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(No Transcript)
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Inspiratory Flow

• Inspiratory Flow
• Range up to 85 lpm
• The Inspiratory flow control is on the front
  panel labeling. 
• It is recommended by the manufacturer to set it
  initially at 60 LPM and adjust higher or lower
  per protocol.

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Expiratory Time

• Expiratory Time
• Range - .20 s to 3.0 s
• The Expiratory Time control is on the front panel
  labeling.  Adjust to the I/E ratio desired.

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Inspiratory Time

• Inspiratory Time
• Range up to 2.0 s
• The Inspiratory Time control is on the front
  panel labeling.  Adjust to the I/E ratio desired.

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Airway Pressure

• Airway Pressure
• Range
• -10 to 150 cm/H20
• -10 to 110 mm Hg

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Pressure Relief Valve

• Pressure Relief Valve
• Range 0 to 120 cm/H20
• Adjust to relieve any undesired, excess pressure
  that may be generated
• Observe working pressure and adjust the valve to
  relieve the Inspiratory pressure at the desired
  level

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Omni-Vent Series D

• General Description
• Pneumatically powered
• Single Circuit
• Volume constant
• Time cycled
• Inspiratory Flow variable

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Omni-Vent Series D

• Uses
• Magnetic Resonance Imaging
• Hyperbaric Chambers
• Airmobile operations
• Emergency Medicine
• In house transport
• Anesthesia

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Omni-Vent Series D

• Specifications
• Dimensions  4x5x7 inches  (10x13x18 centimeters)
  
• Weight  4.5lbs  (2 kgs)
• Case  Aluminum constructed

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Omni-Vent Series D

• Effective Ranges
• Gas Pressure 25 to 140 psi
• Tidal Volume (VT)  0 to 1.5 L
• Flow 0 to 85 lpm
• Respiratory Rate  0 to 150 bpm
• PEEP/CPAP pressure 0 to 50 cm/H2O
• Continuous Flow 0 to 60 lpm
• Pressure Relief 0 to 120 cm/H2O

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Approximate VT desired (mL)
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Approximate Rate Desired (bpm)
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Omni-Vent Modes

• Continuous Mechanical Ventilation (CMV)
• If needed, the Omni-vent can be used for CMV
  purposes.  Adjust the following knobs and monitor
  the patient as protocol dictates.
• Inspiratory Time
• Expiratory Time
• Inspiratory Flow
• Pressure relief valve

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Omni-Vent Modes

• Intermittent Mandatory Ventilation (IMV)
• Using continuous flow
• Attach the IMV kit to the front panel and the
  small bore tubing between the IMV kit and the top
  mounted bleed valve. 
• Attach the patient tubing circuit to the IMV kit
  and front panel. 
• Turn the bleed valve on in a counter-clockwise
  movement and adjust the continuous flow to the
  system. 

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Omni-Vent Modes

• Intermittent Mandatory Ventilation (IMV)
• Continued
• Titrate the gas flow to the IV system by
  observing the reservoir bag and not allowing it
  to deflate during the patient's respiratory
  cycle.
• The inspiratory, expiratory, and flow rate
  controls may now be adjusted to the values
  desired.
• Ensure the pressure relief valve is adjusted.
• Monitor the patient as in CMV.

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Omni-Vent Modes

• Positive End Expiratory Pressure (PEEP)
• PEEP may be used during CMV or IMV.
• Attach a PEEP valve to the outlet port of the
  expiratory valve on the patient tubing circuit. 
• Adjust the PEEP valve control knob and observe
  the end-expiratory pressure on the pressure gauge
  until the desired PEEP valve is achieved. 
• As PEEP pressure is increased, the peak airway
  pressure will increase, therefore, the pressure
  relief valve may need to be readjusted.

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Omni-Vent Modes

• Continuous Positive Airway Pressure (CPAP) 
• Use the same accessories used for IMV and PEEP. 
• Turn the expiratory Time control to the maximal
  time position (full clockwise)
• Turn the inspiratory flow control to the lowest
  position (full counter-clockwise). 
• Attach a PEEP valve to the outlet port of the
  patient tubing circuit exhalation valve
• Adjust the continuous flow to the IMV reservoir
  bag as desired and adjust the PEEP valve control
  to the approximated PEEP level desired

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Omni-Vent Modes

• Pressure Controlled Ventilation (PCV)
• First CMV or IMV must be started. 
• Observe the working pressure on the pressure
  gauge.
• Set the Pressure Relief valve to a pressure
  slightly less than the working pressure. This
  allows for a plateau pressure to occur. 
• This technique is generally utilized when an
  absolute pressure limit is mandatory, with the
  understanding that the initially delivered tidal
  volume may not continue to be delivered.

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Omni-Vent Modes

• Pressure Control-Inverse Ratio Ventilation
  (PC-EI)
• Set the Omni-Vent in CMV
• An inverse ratio may be accomplished by
  increaseing the rate per minute and no allowing
  as much time for exhalation as for inhalation. 
• Set the pressure relief valve is set to the
  desired value.

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Omni-Vent Modes

• High Frequency Ventilation (HFV)
• Selecting an appropriate low-level tidal volume
• Adjusting the rate per minute above normal
  levels. 
• Auto-PEEP may occur with HFV. If this occurs,
  decrease the tidal volume level or the rate per
  minute level until end-expiratory pressure levels
  are maintained. 

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Omni-Vent Problem Solving

• Ventilator will not cycle
• Check on/off switch
• Check gas source for appropriate pressure
• Check expiratory time
• Tidal Volume too low
• Check Pressure relief setting
• Check patients artificial airway
• Check flow control
• Use "O" hand-held spirometer between each cycle

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Omni-Vent Problem Solving

• Inspiratory Flow Rate too slow
• Adjust flow control to full-open posistion
• Ensure inlet pressure is adequate (25-140 psi -
  50 psi optimal)
• Check inlet filter for debris
• Ensure pressure reducing regulators are in proper
  working order according to manufacturer's
  specifications and maintenance schedules 

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Calibration of Omni-Vent

• Calibration
• Attach the Omni-Vent to the usual pressurized gas
  source that is used. Turn the On/Off switch to
  the "off" position.
• Attach the Tubing Circuit/Exhalation valve
  assembly to the Omni-Vent.
• Attach tubing to test lung
• Remove all the control knobs from the Omni-Vent
  with a 1/16" allen wrench

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Calibration of Omni-Vent

• Turn the On/Off switch to the "on" position and
  allow the Omni-Vent to cycle several times.
• Adjust the controls to obtain the following
  units.
• Inspiratory Flow - 60 LPM
• Inspiratory Time - 1 second
• Expiratory Time - Three seconds

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Return to Start
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Set Inspiratory Time

• Inspiratory Time
• 60 / desired BPM TCT
• TCT / I E IT
• Ex. want 12 BPM at a 13 IE ratio
• 60 / 12 5
• 5 / 4 1.25 sec. IT
• So set knob slightly over 1.0
• Back to
• slide

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Set Expiratory Time

• Expiratory Time
• 60 / desired BPM TCT
• TCT / I E IT
• TCT - IT ET
• Ex want 12 BPM at an IE ratio of 1 3
• 5 - 1.25 3.75
• Back to
• slide

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Set Inspiratory Flow

• Inspiratory Flow
• It is recommended by the manufacturer to set it
  initially at 60 LPM and adjust higher or lower
  per protocol.
• Back to
• slide

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Set Pressure Relief Valve

• Pressure Relief Valve
• Block patient wye and adjust to 35 cm H20 during
  an inspiration
• Back to
• slide