Ultrasonic transducer
US7573182B2 · kind B2 · utility
44Cited by
9References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 2006 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Aug 2, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/0472
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasonic transducer of the type containing a cylindrical piezoelectric active element mounted on a supporting tube is provided with a backing component made of an electrically and thermally insulating material forming a sleeve which extends between the piezoelectric element and the supporting tube. An insulating material is selected for the backing component which includes a substantial amount of entrained air. Preferably, the backing component is made of expanded polytetrafluoroethylene (EPTFE).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.