Principles of Mechanical Ventilation

1
Principles of Mechanical Ventilation

• RET 2284L
• Module 2.0
• Types of Mechanical Ventilators

2
Bear 1000 Ventilator

• Pediatric
• Adults

3
Bear 1000 Ventilator

• Power Source
• Pneumatically powered
• 50 psig air/oxygen gas sources
• Air compressor can be added (FiO2 .21)
• Microprocessor controlled
• Power switch is on the back

4
Bear 1000 Ventilator

• Patient Circuit
• Proximal pressure line
• Monitors airway pressure at the Y connector
• Exhalation valve
• Internally mounted
• External flow sensor
• Hot wire anemometer

5
Bear 1000 Ventilator

• Internal Mechanism
• Compressed air/oxygen
• Filters
• Check valves
• Regulators (50 psig 18 psig)
• Accumulator (mixing chamber source of
  high flow)
• Flow control valve (control panel
  settings/patient demand)
• SOPR
• Outlet check valve
• Patient

6
Bear 1000 Ventilator

• Controls and Alarms

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Bear 1000 Ventilator

• Control Panel

8
Bear 1000 Ventilator

• Monitors and Alarms

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Bear 1000 Ventilator

• Graphics

10
Puritan Bennett 840 Ventilator

• Infant
• Pediatric
• Adult

11
Puritan Bennett 840 Ventilator

• Power Source
• Electrically and pneumatically powered
• 120-volt AC
• Back-up battery (will not operate the compressor)
• Charges when plugged into AC outlet
• 50 psig air/oxygen gas sources
• Air compressor can be added
• Power switch is on the front of the Breath
  Delivery Unit (BDU)

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Puritan Bennett 840 Ventilator

• Patient Circuit
• Inspiratory Line
• Inspiratory filter
• Patient connector
• Expiratory Line
• Expiratory filter with collector vial
• Exhalation valve
• Internally mounted

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Puritan Bennett 840 Ventilator

• Self Tests
• Power On Self Test (POST)
• Microprocessor test
• Extended Self Test (EST)
• Run by service technicians
• Short Self Test (SST)
• Verifies proper ventilator operation
• Checks patient circuit for leaks
• Measures circuit compliance and resistance
• Check exhalation filter resistance

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Puritan Bennett 840 Ventilator

• Controls and Alarms
• Graphic User Interface (GUI)

Status Indicator
Touch sensitive screen
Control functions keys/knob
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Puritan Bennett 840 Ventilator

• DualView Screen
• Upper Screen
• Patient data
• Alarms
• Ventilator status
• Misc. dat
• Graphics
• Lower Screen
• Primary settings
• SndBox
• Setup keys
• Symbol def. Area
• Prompt area

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Puritan Bennett 840 Ventilator

• Status Indicator Panel
• Alarm status
• Vent Inop
• SVO
• Battery
• Compressor

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Puritan Bennett 840 Ventilator

• System Control Keys
• Screen Lock
• Display Contrast
• Alarm Volume
• Alarm Silence
• Alarm Reset
• Information
• 100 O2/Cal
• Manual Inspiration
• Expiratory Pause
• Inspiratory Pause
• Control Knob (Clear / Accept)

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Puritan Bennett 840 Ventilator

• Breath Delivery Unit (BDU)
• Ventilator Inoperative
• Safety Valve Open (SVO)
• GUI
• Information displayed is unreliable

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Puritan Bennett 840 Ventilator

• Alarms
• High pressure
• High/low tidal volume
• High rate
• Prolonged inspiratory time
• High/low O2 percentage
• Apnea Apnea Ventilation (AV)
• Power loss
• Circuit disconnect
• Device EST must be run and pass
• Procedure error Safety Ventilation

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Puritan Bennett 840 Ventilator

• Alarms
• Touch Turn - Accept

21
Puritan Bennett 840 Ventilator

• Modes of Ventilation
• Assist/Control
• Synchronized Intermittent Mandatory Ventilation
  (SIMV)
• Spontaneous Modes
• BiLevel Ventilation

22
Puritan Bennett 7200 Ventilator

• Pediatric
• Adult

23
Puritan Bennett 7200 Ventilator

• Power Source
• Electrically and pneumatically powered
• 115-volt AC
• NO INTERNAL BATTERY (will not operate if
  unplugged)
• 50 psig air/oxygen gas sources
• Can operate with single gas source or a high
  pressure compressor
• Power switch is on left side

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Puritan Bennett 7200 Ventilator

• Patient Circuit
• Inspiratory Line
• Inspiratory filter
• Patient connector
• Expiratory Line
• Expiratory filter
• Exhalation valve
• Internally mounted

25
PB 7200

• Controls Alarms
• Ventilator Settings
• Patient Data
• Ventilator Status
• Alarm information

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Puritan Bennett 7200 Ventilator

• Self Tests
• Power On Self Test (POST)
• Microprocessor test
• Quick Extended Self Test (QUEST)
• 26 Tests 2 min.
• Total Extended Self Test (TEST)
• 60 Test 3-5 min.
• Routinely performed by biomedical personnel

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Puritan Bennett 7200 Ventilator

• Initial Start-Up
• Review Apnea Parameters
• Ensure apnea parameters are appropriate
• Check automatic sigh parameters
• Previous settings stored
• Check PEEP
• Previous settings stored
• Select mode

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Puritan Bennett 7200 Ventilator

• Changing the Value of a Parameter
• Press key pad with variable
• Enter value using number keypad
• Press the ENTER key to place new value in memory

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Puritan Bennett 7200 Ventilator

• Changing the Value of a Parameter
• Press key pad with variable
• Enter value using number keypad
• Press the ENTER key to place new value in memory
• Note New entries are not accepted until the
  ENTER key is pressed

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Puritan Bennett 7200 Ventilator

• Alarms
• High pressure limit
• Low inspiratory pressure
• Low PEEP/CPAP pressure
• Low exhaled VT
• Low exhaled minute volume

• High respiratory rate
• IE
• Anea
• Low-pressure O2 inlet
• Low-pressure air inlet
• Exhalation volve leak
• Low battery