Devices and methods for delivery of substances within a prefilled syringe
US11167087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2020 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Aug 7, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3334
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus includes a housing, an energy storage member, a carrier, a medicament container, and a delivery control mechanism. The housing defines a gas chamber configured to receive pressurized gas from the energy storage member to pressurize the gas chamber. The carrier has a proximal surface that defines a portion of the gas chamber. The medicament container is coupled to the carrier and has a distal end portion coupled to a delivery member. The medicament container contains a medicament and includes an elastomeric member that seals the medicament within the medicament container. The delivery control mechanism is coupled to a proximal end portion of the medicament container and includes a flow restriction member for regulating a pressure supplied by the gas chamber and entering into the medicament container that acts on the elastomeric member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.