Heat exchange catheter and method of use
US7621889B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2005 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Nov 18, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/126
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inlet flow of heat exchange fluid flows from an inflow housing inlet section, and through an inflow housing main section. It then flows through an inlet fluid passageway formed between an inner balloon and a discharge tube. The flow continues around a distal end of the inner balloon, thus becoming an outlet flow of the heat exchange fluid which is directed through an outlet fluid passageway formed between the inner balloon and an outer balloon, then through an outflow housing main section and finally discharged through an outflow housing outlet section. The inner balloon is in a position offset from the central axis of the catheter. The offset relationship enhances the fluid dynamic properties of the catheter. It provides an increased turbulence, which, in turn, maximizes the heat exchange efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.