Feedback/registration mechanism for ultrasound devices
US9814444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2013 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jul 17, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3925
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Among other things, there is disclosed structure and methods for registering images obtained through internal (e.g. intravascular) ultrasound devices. Embodiments of a device with a rotating ultrasound beam is provided, with a wall of the device being anisotropic in ultrasound passage. As examples, a cable opaque to ultrasound is attached along the wall of the device, so that the ultrasound beam at the location of the cable is blocked, reflected or scattered. As another example, a thin film of metallic material is placed on or in the wall to allow a portion of the beam to be blocked or attenuated. The imaging system recognizes the changes to the signals made by the anisotropic wall, and registers successive images according to those changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.