Storz Medical şok dalgalarının mantığı fiziği ve geçmişi

1. Physics of shock waves

2. What are shock waves?

3. Shock Waves
are mechanical waves
are sound waves
require an elastic medium for
propagation like
Water
Air
Tissue
feature a steep pressure rise in
nano second range (focused shock waves)
What are shock waves?

4. F-SW – Focused shock wave
Higher energy density
R-SW – Radial shock wave
Lower energy density
Focused and radial shock waves
Two technologies – two ways of generation

5. F-SW – Focused Shock Wave
Frequency 1 – 8 Hz
Energy 0.01 – 0.55 mJ/mm²
Energy (C-ACTOR®) 0.01 – 1.24 mJ/mm²
Penetration depth 15 mm – 50 mm
Focused Shock Wave Technology (electromagnetic cylinder coil)

6. +
Focused Shock Wave Technology
ESWT – Extracorporeal shock wave therapy

7. 1980
Electrohydraulic ellipsoid
1985
Piezoelectric sphere
1986
Electromagnetic flat
coil/lens
1989
Electromagnetic cylinder
coil/paraboloid
Focused Shock Wave Technology
How can focused shock waves be generated ?

8. Focused Shock Wave Technology
1988: STORZ MEDICAL core technology
Unique, patented shock wave source
Cylindrical coil with rotational paraboloid reflector
In-line localization possibility with X-ray or ultrasound

9. Radial Shock Wave Technology
R-SW – Radial Shock Wave
Frequency 1 – 21 Hz
Energy 1 – 5 bar
Pulse transmitter multiple

10. How can radial shock waves be generated?
Animated radial shock wave application (shoulder pain)

11. Animated radial shock wave propagation in body tissue

12. Comparison of penetration depth – focused and radial shock wave
Skinsurface
Focused shock wave
without stand-off
30mm
40mm
90mm
125mm
Focused shock wave
with stand-off II
Radial shock wave
with »Deep Impact«
transmitter
Radial shock wave
with »Standard transmitter«