Method of non-contact micromanipulation using ultrasound
US5831166A · kind A · utility
190Cited by
8References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 2, 1996 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Oct 2, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/283
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of non-contact micromanipulation using ultrasound includes providing a concave ultrasound transducer in a liquid medium in which micro particles are distributed, positioning a reflector at the focal point position of the transducer and radiating ultrasound from the transducer to form a standing wave field between the transducer and the reflector to align and trap micro particles at half wavelength intervals along the axis of the transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.