Needle-free connector
US11828388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2022 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Mar 8, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2015/03538
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle-free connector for accessing a patient's intravenous line includes a hollow body having a first end with a first opening, a second end with a second opening, and an inner wall defining a chamber. A hollow piston disposed in the chamber is axially collapsible to allow fluid to flow between the inner wall of the hollow body and the outer surface of the hollow piston. An inner surface of the hollow piston includes a fluted section having a radial array of axial slots. The fluted section has a first radial thickness configured to buckle in response to axial force applied to the hollow piston. The hollow piston further includes a retrograde-reducing stiffener. The retrograde-reducing stiffener has a second radial thickness that is greater than the first radial thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.