Microinjection catheter
US12090283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2020 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Feb 25, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0693
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An insertion device for delivering media inside a patient includes an outer guide tube having a side port. An inner guide tube is nested within the outer guide tube and movable axially within the outer guide tube. The inner guide tube includes a deflector at an end within the outer guide tube. The device also includes a catheter nested within the inner guide tube and movable axially within the inner guide tube. The deflector of the inner guide tube is positionable such that it deflects the dispensing end of the catheter outward through the opening in the outer guide tube when the catheter is advanced axially within the inner guide tube. A therapeutic delivery cannula may be nested within the catheter, such that the deflected end of the catheter determines the direction of travel of the therapeutic delivery cannula into patient tissue when the cannula emerges from the catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.