Medical catheter with reduced backflow
US9345856B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2011 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | May 16, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical catheter (1) comprising an inner catheter tube (2) and an outer catheter tube (3), wherein the inner catheter tube (2) has at least one outlet port (6) for a medical liquid at its distal end and the outer catheter tube comprises two parts of differing rigidities, namely a flexible part (5) and a rigid part (4), wherein the flexible (5) part is located at the distal end of the outer catheter tube (3) and the distal end of the flexible part (5) is connected to the inner catheter tube (2), and wherein the medical catheter also comprises a drive means (7) for generating a relative movement between the inner catheter tube (2) and the rigid part (4) of the outer catheter tube (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.