Cryoablation iceball formation monitoring devices, systems, and methods
US12349956B2 · kind B2 · utility
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2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2022 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Jan 23, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/227
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein are devices, systems, and methods for monitoring a formation of an iceball at a cryoablation needle. An example method includes receiving an impedance from at least one electrode in an electrode arrangement that is disposed at a cryoablation needle distal portion. The electrode arrangement is configured to engage the iceball as the iceball is formed over the cryoablation needle distal portion so as to cause a change in the impedance. The example method includes determining one or more physical attributes of the iceball based on a rate of the change in the impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.