Liquid light guide catheter having biocompatible liquid light guide medium
US10631931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2016 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Jul 30, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/2261
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of delivering light energy to target matter in a mammalian body is described. The method may include inserting at least a portion of a catheter into a patient's vasculature, wherein the catheter comprises an open distal tip, a lumen extending proximally from the open distal tip, and at least one optical fiber within the lumen, wherein the at least one optical fiber has a distal end. The method may include flowing a liquid light guide medium through the open-ended catheter tip, wherein the liquid light guide medium flows beyond the distal end of the at least one optical fiber, wherein the liquid light guide medium comprises a magnesium chloride solution having an ion concentration that is isotonic with blood and tissue. The method may include forming a fluid optical channel with the liquid light guide medium between the catheter and the target matter. Other methods are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.