Probe having a giant magnetostrictive material for organism diagnosis
US5277200A · kind A · utility
11Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1992 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Sep 1, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/682
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A probe has a vibration excitor including a core member made of a giant magnetostrictive material and magnetic field generation means for generating an alternating magnetic field having a randomly varying frequency to thereby expand and compress the core member to generate random vibration therein, and an impedance head for detecting an acceleration of the random vibration and a vibration stress created in organism tissue vibrated by the vibration excitor and generating electrical signals proportional thereto. A viscoelasticity measurement device using the above probe for the organism tissue is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.