Medical device for vessel compatibility during high pressure infusion
US7938799B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Sep 21, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides devices that can be used to deliver a therapeutic agent to a treatment site within the vessel of a patient at increased pressure, while limiting the contact with and pressure placed on the vessel walls. Devices according to the invention include an expandable structure arranged around and on a tube having a lumen. The expandable structure may include a sealing ring that makes contact with the interior surface of a vessel to prevent or decrease fluid flow during delivery of a therapeutic agent. This allows delivery of a therapeutic agent with decreased risk of injury to the treatment site. The invention also provides for large lumen diameters, preventing shearing stress on therapeutic agents such as cell slurries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.