Cardiac electrosurgery
US9179932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2014 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Apr 21, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Devices and methods are disclosed for providing access to the pericardial cavity while reducing risk of myocardial damage. One method includes advancing a puncture device towards a heart, the puncture device including an energy delivery device; measuring an electrical impedance at the energy delivery device; delivering energy from the energy delivery device to at least partially puncture a pericardium; and repeating one or more of the above steps, if necessary, until the energy delivery device is located at least partially within the pericardial cavity. Some embodiments of the method include using supplemental means of monitoring, including measuring voltage to plot an ECG, medical imaging and using contrast fluid, using tactile feedback, and aspirating fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.