Transluminal hyperthermia catheter and method for use
US5957917A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Sep 22, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/061
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter and a method for using the catheter for the transluminal hyperthermic treatment of target tissue is presented. The catheter comprises an elongate tubular member having two coolant circulating lumens and an optical waveguide coextensive therewith, the proximal end of the optical waveguide being adapted to receive light from a light source and the distal end of the optical waveguide terminating in a diffuser tip. The diffuser tip provides a means for radially distributing treatment light from the light source to tissue adjacent to the distal tip of the catheter to heat the tissue. A transparent, inflatable balloon surrounds the diffuser tip. The inflatable balloon permits the flow of an optically transparent coolant around the diffuser tip to cool the tissue immediately adjacent to the diffuser tip to prevent overheating. A method of using the device for the transurethral treatment of benign prostate hypertrophy is presented as an example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.