Post on 30-Mar-2015
transcript
ANALOGY
PATIENT
ANALOGY
ANALOGY
PATIENT
ANALOGY
Minute volume
Diaphragm
Daily metabolic challenges
ANALOGY
PATIENT
ANALOGY
Minute volume
Diaphragm
Daily metabolic challenges
Accelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
ANALOGY
Pathology(secretions) PATIENT
ANALOGY
Minute volume
Diaphragm
If engine works with less than 4 cylinders – diaphragm pathology
Daily metabolic challenges
Accelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
ANALOGYANALOGY
VENTILATOR ?
ANALOGYANALOGY
VENTILATOR
ANALOGY
Pathology
PATIENT
ANALOGY
Minute volume
DiaphragmAccelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Daily metabolic challenges
VENTILATOR
Ppeak
ANALOGY
Pathology
PATIENT
ANALOGY
Minute volume
DiaphragmAccelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Daily metabolic challenges
VENTILATOR
Ppeak
Conventional Ventilator triggers (pushes more) when patient ‘pulls’
Ventilator does not ‘see’ need for speed, and fast metabolic changes, rather estimates and maintains constant speed, as synchronious as possible.
ANALOGY
Pathology
PATIENTMinute volume
DiaphragmAccelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Daily metabolic challenges
VENTILATOR
Ppeak
NAVA introduces link (Edi) between patient’s carburettor, and ‘push truck’s’ accelerator
ANALOGY
Pathology
PATIENT
ANALOGY
Minute volume
DiaphragmAccelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Daily metabolic challenges
VENTILATOR
Ppeak
NAVA Level
NAVA introduces link (Edi) between patient’s carburettor, and ‘push truck’s’ accelerator
Edimax signal (= Peak Pressure), Tidal volume andBreath rate (= Minute volume) are controlled by the patient
ANALOGY
Pathology
PATIENT
ANALOGY
Minute volume
DiaphragmAccelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Daily metabolic challenges
VENTILATOR
Ppeak
NAVA Level
NAVA introduces link (Edi) between patient’s carburettor, and ‘push truck’s’ accelerator
(Small) NAVA level increase or decrease usually results in instantaneous Edi signal ‘correction’
ANALOGY
PATIENT
ANALOGY
Minute volume
DiaphragmAccelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Daily metabolic challenges
VENTILATOR
Ppeak
NAVA Level
NAVA introduces link (Edi) between patient’s carburettor, and ‘push truck’s’ accelerator
Healing (pathology clearing) will result in lower Edi
ANALOGY
PATIENT
ANALOGY
Minute volume
DiaphragmAccelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
Daily metabolic challenges
VENTILATOR
Ppeak
NAVA Level
NAVA introduces link (Edi) between patient’s carburettor, and ‘push truck’s’ accelerator
(faster) Engine improvement (4 cylinders working) will result with lower Edi, AND lower Peak Pressure (more pull)
ANALOGY
Minute volume
Daily metabolic challenges
NAVA Level
NAVA introduces link (Edi) between patient’s carburettor, and ‘push truck’s’ accelerator
PATIENT
Pathology
Accelerator – respiratory centreAcc. Cable – phrenic nerveCarburettor throttle opening – EdiRusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
VENTILATOR
Ppeak
Diaphragm
ANALOGY