Ultrasonic transducer, ultrasonic probe, and ultrasonic detection apparatus
US11642105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2020 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Jun 14, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/4483
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasonic transducer (200) includes: a piezoelectric vibrator assembly (10), an acoustic matching layer (20), a heat sink (30), and an acoustic absorption layer (40). The heat sink (30) comprises a body (31), and a head portion (32) and a tail portion (33). The body (31) has a central axis extending in a direction from the head portion (32) to the tail portion (33). A surface of the tail portion (33) of the heat sink (30) disposed away from the head portion (32) is a first surface (331). The first surface (331) is an oblique surface or a tapered surface. The angle between the first surface (331) and the central axis is an acute angle. The acoustic absorption layer (40) at least covers the first surface (331).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.