Transdermal transport using ultrasonic standing waves
US5895362A · kind A · utility
21Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1996 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Feb 23, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2037/0007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process for the sampling of extracellular fluid across the skin of an animal involves establishing an ultrasonic standing wave across the skin and collecting fluid transudate. Sampling can be enhanced by combining the use of ultrasound with the application of a partial vacuum to the surface of the skin. An apparatus includes an ultrasonic transducer, a reflector and an absorbent material for collecting transudate. The apparatus can further include a pressure component for reducing hydrostatic pressure on the skin surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.