Presentation for ELT Medical technology

1. Pulse Oximeter
Presenter: Rohullah Satari
Instructor: Rob Sufi

2. What is Pulse Oximeter?
• Small, light weight,
Clip like device
• Masseur O2
• Pulse Rate (PR)

3. How Do Pulse Oximeter Work?
Deoxygenated Hb and Oxygenated Hb

4. How do Pulse Oximeter Work?

5. How Do Pulse Oximeter Work?
• Shining 2 different Lights
• Red & Infrared

6. Normal Oxygen Saturation
Normal SO2 is :
95 - 99 %
SO2 90 % ↓ is a Clinical Emergency

7. History of Pulse Oximeter
• In 1935, Karl Matthes (German physician ) the
first device
• In the 1940s, the original oximeter was made
by Glenn Allan Millikan
• In 1972, by Takuo Aoyagi and Michio Kishi,
used the ratio of red to infrared light absorption
• In 1995, Masimo , US
Signal Extraction Technology (SET)

8. History of Pulse Oximeter
• In 2011, an expert workgroup recommended
newborn screening, (CCHD)

9. Types of Pulse Oximeter
1. Finger tip ( clip like) pulse oximeter

10. Types of Pulse Oximeter
1. Finger tip ( clip like) pulse oximeter
2. Wrist Finger Pulse oximeter

11. Types of Pulse oximeter
1. Finger tip ( clip like) pulse oximeter
2. Wrist finger Pulse oximeter
3. Handled finger probe Pulse oximeter

12. Pulse Oximeter Accessories
Sticky adhesive or adhesive sensors

13. Pulse oximeter Accessories
Pulse oximeter probes ( Nose)

14. Pulse oximeter Accessories
Pulse oximeter probes ( Ear)

15. Purpose and uses
• Hospitals
Pre Operation, Anesthesia, Post Op care , ICU,
Emergency room, Wards, Delivery room, nurseries
• Clinics
Doctors offices, Practice offices, General care area
• Homecare
Respiratory problems, Heart disease, CHD

16. Case Scenario
24 years old lady was invite to a party, so first she
went to the beauty and nail salon. On the way to
restaurant, she had an accident. An ambulance
toke her to the hospital. In emergency room, a
new haired nurse couldn’t measure her SO2 by
pulse oximeter, but her pulse was palpable. What
was the reason?

17. Limitations
• Nail polish and Henna pigmentation
• Having cold hands or poor circulation
• Body movement, shivering, tremor
• Carbon monoxide poisoning
• Anemia, Bilirubin↑, Blood lipids↑…

18. Future Prospects
• Accurate pulse oximeter
• In the future, pulse oximeters probe could be
wearable, disposable and wireless