System and method for surface acoustic wave treatment of medical devices
US9028748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2007 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Jul 11, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0019
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and systems are provided for treatment of medical devices using surface acoustic waves (SAW) of Rayleigh, “pseudo” Rayleigh and Lamb type. In some embodiments, use of such SAW is controlled such that relative velocity of bacteria is achieved wherein the vibration amplitude of the bacteria is smaller than a Z-potential repulsive zone of the bacteria, thus preventing biofilm formation on the medical devices. In some embodiments, systems of the present invention are powered by body movements, and may also provide a feedback loop for control of parameters. In some embodiments, the medical devices of the present invention are comprised of piezoelectric material, and act as self-actuators for the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.