Ultrasonic apparatus
US4257272A · kind A · utility
40Cited by
3References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Aug 8, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There have been proposed ultrasonic scanners in which a transducer is laterally scanned relative to a body known arrangements with lead screws for example can give rise to much vibration and have a high power requirement. It is proposed to scan with a linear motor drive. The scanning part including the transducer is put in an oil bath and the oil flow is balanced to act as a counterweight. The scanning part should, therefore, have neutral buoyancy, with the centers of gravity and buoyancy substantially coincident.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.