Syringes for repetitive mixing and delivery of injectables
US9592343B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2014 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Feb 16, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/31508
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Mixing syringes including a valve mechanism are configured and configurable to enable one or more substances to be prefilled into the syringe. The valve mechanism may be an aspect of a distal seal assembly. Actuation of the valve mechanism permits opening of a fluid passage for the mixing of one or more substances, and the resulting mixed substance can be delivered by the syringe, for example, for administration of a pharmaceutical to a subject. The repetitive mixing of substances contained in a distal and proximal chamber is also provided, where the plunger rod is configured to releasably engage a locking mechanism to actuate the valve, and can axially displace the distal seal assembly while the fluid passage is open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.