Bloodless percutaneous insertion system
US7544184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | May 6, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for permitting substantially bloodless percutaneous entry into an artery or vein of a patient. The system comprises a needle assembly, a needle hub attachment assembly having a hemostatic segment, and a wire guide inserter (curve straightener) or a wire guide holder also having a hemostatic segment. The components are assembled in a leak-free arrangement, and a fluid passageway for withdrawing blood is established through the system. Each of the hemostatic segments opens to permit passage of a wire guide therethrough, but re-seals to prevent flow of blood therethrough. The needle hub attachment assembly preferably includes a fluid-receiving chamber to permit the clinician to see the first squirt of blood as it enters the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.