Torque driven drug delivery device
US11904143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2018 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Apr 12, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3143
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injector includes a housing having a syringe assembly and an actuating mechanism at least partially disposed within the housing. The syringe assembly includes a syringe barrel that stores a medicament to be injected into a user, a needle assembly, and a filter member disposed adjacent to the needle assembly. The actuating mechanism is operatively coupled to the syringe assembly and includes a torque spring that exerts a torque to urge the medicament through the filter member to be injected into the user. The actuating mechanism further includes a damper mechanism that exerts an opposing force to dampen the motion exerted by the torque spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.