Clog-preventing valved catheter and method of using the catheter
US8512291B2 · kind B2 · utility
2Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2009 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Dec 16, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An anti-clogging catheter includes a tubular cannula defining a fluid passageway and shaped and tipped to removably insert within and be removed from a human body, where the cannula has a proximal end with a first interior surface defining a first interior diameter and a distal end with a second interior surface defining a second interior diameter that is smaller than the first interior diameter. A stylet is movable within the fluid passageway between the proximal end and the distal end and has an outer diameter substantially equal to the second interior diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.