Injection therapy catheter
US5261889A · kind A · utility
128Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Nov 24, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for use with an endoscope includes a projectable and retractable needle for the introduction of injectable drug agents and a visual-path irrigation lumen disposed adjacent to the needle for providing irrigation fluid to a target site within body tissue. The visual-path irrigation lumen enables the user in a one-catheter procedure to displace blood or other obscuring substances such that the visual path is cleared, a target injection site endoscopically identified, the needle advanced into the tissue at the site, and the injectable agent injected into the tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.