Balloon catheters for non-continuous lesions
US6814730B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Dec 31, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Balloon catheters according to the present invention have surface contours with protrusions and grooves to make non-continuous lesions. There is a heating element inside the balloon. The balloon will be filled with a fluid before ablation to expand the balloon for tissue contact, and to transfer heating energy from the heating element to the tissue in contact with the balloon. Since the balloon surface has contours with grooves and protrusions, the tissue contact will not be continuous along the balloon surfaces, and therefore the ablation on the tissue will not be continuous. The energy transmitter can be ultrasound transducer, electrical resistant heater, and microwave antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.