Transcript NAVA Analogy

ANALOGY
PATIENT
ANALOGY
Daily metabolic challenges
PATIENT
Diaphragm
Minute
volume
ANALOGY
Daily metabolic challenges
PATIENT
Accelerator – respiratory centre
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
Diaphragm
Minute
volume
ANALOGY
Daily metabolic challenges
Pathology
(secretions)
Accelerator – respiratory centre
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
Diaphragm
If engine works with less than 4 cylinders – diaphragm pathology
PATIENT
Minute
volume
ANALOGY
VENTILATOR ?
ANALOGY
VENTILATOR
ANALOGY
Daily metabolic challenges
VENTILATOR
Pathology
PATIENT
Accelerator – respiratory centre
Diaphragm
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Minute
volume
ANALOGY
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.
Daily metabolic challenges
VENTILATOR
Pathology
PATIENT
Accelerator – respiratory centre
Diaphragm
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Minute
volume
ANALOGY
NAVA introduces link (Edi)
between patient’s carburettor,
and ‘push truck’s’ accelerator
Daily metabolic challenges
VENTILATOR
Pathology
PATIENT
Accelerator – respiratory centre
Diaphragm
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Minute
volume
ANALOGY
NAVA introduces link (Edi)
between patient’s carburettor,
and ‘push truck’s’ accelerator
NAVA Level
VENTILATOR
Edimax signal (= Peak Pressure),
Tidal volume and
Breath rate (= Minute volume) Daily metabolic challenges
are controlled by the patient
Pathology
PATIENT
Accelerator – respiratory centre
Diaphragm
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Minute
volume
ANALOGY
NAVA introduces link (Edi)
between patient’s carburettor,
and ‘push truck’s’ accelerator
NAVA Level
VENTILATOR
(Small) NAVA level
increase or decrease
usually
results
in Daily metabolic challenges
instantaneous
Edi
signal ‘correction’
Pathology
PATIENT
Accelerator – respiratory centre
Diaphragm
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Minute
volume
ANALOGY
NAVA introduces link (Edi)
between patient’s carburettor,
and ‘push truck’s’ accelerator
NAVA Level
Healing (pathology clearing)
will result in lower Edi
Daily metabolic challenges
VENTILATOR
PATIENT
Accelerator – respiratory centre
Diaphragm
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Minute
volume
ANALOGY
NAVA introduces link (Edi)
between patient’s carburettor,
and ‘push truck’s’ accelerator
NAVA Level
(faster) Engine improvement (4 cylinders
working) will result with lower Edi, AND
lower Peak Pressure (more pull)
Daily metabolic challenges
VENTILATOR
PATIENT
Accelerator – respiratory centre
Diaphragm
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
Minute
volume
ANALOGY
NAVA introduces link (Edi)
between patient’s carburettor,
and ‘push truck’s’ accelerator
NAVA Level
Daily metabolic challenges
VENTILATOR
Pathology
PATIENT
Accelerator – respiratory centre
Diaphragm
Acc. Cable – phrenic nerve
Carburettor throttle opening – Edi
Rusted accelerator cable – neurological problems
If engine works with less than 4 cylinders – diaphragm pathology
Minute
volume