Fluid path optimization in catheter insertion systems
US12263316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2021 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Sep 6, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0183
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Elongate blood flash flow paths can be detrimental to the operation of catheter placement systems by delaying the indication time, reducing the efficacy of the vacuum, or increasing the chance of clotting. Catheter placement systems with reduced blood flash fluid paths include blood flash indicators having a proximally slidable syringe barrel and plunger that is fixedly attached to the system housing. By reversing the operation of the blood flash indicator syringe, the clinician maintains the advantages of a visual and tactile feedback while shortening the blood flow path between the needle tip and syringe barrel. Catheter placement systems also include a needle interface structure configured to further shorten the blood flash fluid path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.