Indirect fluid flow measurement
US8147443B2 · kind B2 · utility
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4References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 23, 2008 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Aug 3, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for ablating tissue comprising controlling a heating element using a variable phase angle control to heat an ablation fluid to a desired temperature and determining a heating percentage corresponding to a percentage of a maximum available heating power represented by a current level of power supplied to the heating element and, when the heating percentage remains below a threshold level for a predetermined period of time, indicating a flow obstruction condition of the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.