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Ultrasonic medical devices are used for cutting, disintegrating,
cauterizing, scraping, cavitating, and dental descaling. Because most are handheld, they
must be small and light.
Typical design |
3/4 section |
Ultrasonic devices like this are used for tissue removal or
disintegration. This device is driven by four piezoelectric ceramics. The tip is
replaceable. The central passage is used either for irrigation or aspiration. (Note:
electrical connections are not shown.) |
Typical
design parameters |
| Diameter |
<= 25 mm |
| Frequency |
20 kHz - 70 kHz |
| Amplitudes |
100 - 300 microns |
| Cleaning and disinfecting |
Autoclaving at high temperatures with steam may be required. |
| Other |
Irrigation and aspiration are often required.
The probe may be bent for better observation of the procedure. |
Also see resonator design by finite
element analysis.
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