Ultrasonic imager
US5199437A · kind A · utility
70Cited by
12References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1991 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Sep 9, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/4488
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides an intracavitary ultrasonic scanner with a helical scan. Mechanical and electronic steerable array implementations of the helical scan are described. A plastic cover sheath, filled with coupling fluid, covers the probe of the scanner. Portions of probe are porous allowing the coupling fluid to penetrate to the outside of the sheath. An improved polar coordinate decoding system provides an accurate control of the scan and allows storage of scan information in voxel memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.