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Principles of Mechanical Ventilation

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50 psig air/oxygen gas sources. Air compressor can be added (FiO2 .21) ... Hot wire anemometer. Bear 1000 Ventilator. Internal Mechanism. Compressed air/oxygen ... – PowerPoint PPT presentation

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Title: 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

7
Bear 1000 Ventilator
  • Control Panel

8
Bear 1000 Ventilator
  • Monitors and Alarms

9
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)

12
Puritan Bennett 840 Ventilator
  • Patient Circuit
  • Inspiratory Line
  • Inspiratory filter
  • Patient connector
  • Expiratory Line
  • Expiratory filter with collector vial
  • Exhalation valve
  • Internally mounted

13
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

14
Puritan Bennett 840 Ventilator
  • Controls and Alarms
  • Graphic User Interface (GUI)

Status Indicator
Touch sensitive screen
Control functions keys/knob
15
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

16
Puritan Bennett 840 Ventilator
  • Status Indicator Panel
  • Alarm status
  • Vent Inop
  • SVO
  • Battery
  • Compressor

17
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)

18
Puritan Bennett 840 Ventilator
  • Breath Delivery Unit (BDU)
  • Ventilator Inoperative
  • Safety Valve Open (SVO)
  • GUI
  • Information displayed is unreliable

19
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

20
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

24
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

26
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

27
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

28
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

29
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

30
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
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