Balloon cryogenic catheter
US6537271B1 · kind B1 · utility
110Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Jul 6, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0268
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for inflating a balloon at a distal portion of an elongated delivery catheter to contact surrounding biological tissue, and expanding a refrigerant adjacent the balloon to cool the biological tissue to render it non-viable. The inflation of the balloon can be accomplished with the expanded refrigerant or with a separate pressurized fluid. The balloon can act as a heat transfer element, or there can be a separate heat transfer element on the catheter adjacent the balloon. The apparatus can be used to perform a dilation procedure, such as angioplasty, in conjunction with cooling of the surrounding tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.