Stepped catheters with flow restrictors and infusion systems using the same
US9539382B2 · kind B2 · utility
201Cited by
38References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Apr 12, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0693
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stepped catheter comprising a distal portion of smaller diameter than a proximal portion, wherein the distal portion defines a flow aperture configured to deliver fluid passing through the catheter from the proximal portion to the flow aperture. The catheter may include a flow restrictor located within a lumen of the catheter at or near the flow aperture. A filter element may also be included and located within the lumen of the catheter at a location upstream of the flow restrictor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.