Port cannula for the puncturing of port catheters
US9149603B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Apr 17, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M39/0208
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A port cannula for puncturing implantable or implanted port catheters includes a cannula tube with a ground surface, which is formed from a ground cut inclined with respect to a center axis of the cannula tube by a ground-cut angle and from two facet cuts lying at an angle to each other, and of a cannula tip which is provided by the ground surface and which is oriented via a first bend in the direction of the center axis of the cannula tube. The ground cut and the facet cut are adapted to each other in such a way that, on the one hand, during puncturing, a bending of the cannula is least reduced and, on the other hand, the pain caused to the patient is kept within an acceptable range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.