Phono means sound and phoresis means migration of the ions through a membrane by the action of an electric current.
Phonophoresis
is defined as the movement of the drugs through skin into the
subcutaneous tissues under the influence of ultrasound.
Phonophoresis depends upon:
· Intensity of ultrasound
· Frequency of ultrasound
· Nature of drugs
In
1950s, they said that the drugs goes 4 – 5 cm deep to the skin while
recent study shows that drugs go 1 -2 mm deep into the skin.
 |
| Phonophoresis |
Indications:
· Bursitis
· Tendinitis
· Medical
interest of transcutaneous systemic delivery of substances such as
insulin that cannot be delivered effectively by mouth
· For superficial effects, cutaneous anaesthetic are delivered by frequency devices
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