Method and apparatus for monitoring tissue ablation
US8328726B2 · kind B2 · utility
7Cited by
6References
16Claims
0Family size
Inventors
Key dates
| Filing date | Apr 1, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Apr 17, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/441
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Real-time monitoring of tissue ablation is possible by using a vibrating ablation needle coupling lateral shear waves to the tissue. Ultrasonic imaging may characterize the velocity of these shear waves to reveal Young's modulus of the tissue and, at a discontinuity in Young's modulus, a boundary of the ablated lesion reflecting an underlying increase in stiffness of ablated tissue. This technique may be coupled with quasi-static elastography-based ablation monitoring techniques for improved measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.