Irrigation cooling structure for microwave ablation tissue probe
US11957409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | May 1, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1869
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A microwave ablation probe including a probe body including a shielded portion and a radiation window that is at least partially transparent to microwave energy. The shielded portion includes a cannula, a coaxial cable within the probe body, and an antenna comprising a radiating portion for emission of microwave energy at a distal portion of the probe body, wherein the radiating portion is aligned with the radiation window. The probe body defines an irrigation path configured to carry cooling fluid to and from the distal portion of the probe body. At least one wall defining the irrigation path comprises a heat exchange surface having an average radius, wherein a surface area of the heat exchange surface is larger than a surface area of a smooth surface with a radius equal to the average radius.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.