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公开(公告)号:US20220370114A1
公开(公告)日:2022-11-24
申请号:US17752612
申请日:2022-05-24
Applicant: Boston Scientific Scimed Inc.
Inventor: Cathy Condie , Timothy A. Ostroot , Hong Cao , Andrew K. Zachman
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.