پاورپوینت ونتیلاتور (pptx) 77 اسلاید
دسته بندی : پاورپوینت
نوع فایل : PowerPoint (.pptx) ( قابل ویرایش و آماده پرینت )
تعداد اسلاید: 77 اسلاید
قسمتی از متن PowerPoint (.pptx) :
بسم الله الرحمن الرحیم
Ventilator
Types of Ventilator
Positive Pressure Ventilators
Gas blown into lungs
All Current Itu and Theatre Ventilators
Unphysiological but practical
Negative Pressure Ventilators
“Iron Lung”
Cuirass (breastplate) ventilators
Physiological but impractical
Origins of mechanical ventilation
Negative-pressure ventilators (“iron lungs”)
Non-invasive ventilation first used in Boston Children’s Hospital in 1928
Used extensively during polio outbreaks in 1940s – 1950s
Positive-pressure ventilators
Invasive ventilation first used at Massachusetts General Hospital in 1955
Now the modern standard of mechanical ventilation
The iron lung created negative pressure in abdomen as well as the chest, decreasing cardiac output.
Iron lung polio ward at Rancho Los Amigos Hospital in 1953.
Classification
Based on cycling
Pressure cycling
Volume cycling
Time cycling
Inspiratory flow patterns
Flow generation
High powered ventilator can deliver constant flow through inspiration
Pressure generation
Low powered ventilator delivering decreasing flow through inspiration -
Ventilator Upper Section
User Interface
Monitor
Control( Alarm limit)