Safety injection device, injector and assembly method thereof
US12048840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2021 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Mar 3, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present application discloses a safety injection device including a needle, a needle hub, an elastic member, a slider, a needle shield, a protective sleeve, and an outer cover. The needle hub, the elastic member, the slider, the needle shield and the protective sleeve are sleeved in sequence with the needle as a shaft. The slider is configured to rotate irreversibly after a single use. The safety injection device according to the present application has a simple and reasonable structure, and is safe, stretchable, and easy to use. In addition, it avoids fear of the needle tip during injection when use. After use, the injection device utilizes the eccentric principle to prevent from being fully depressed again, and the needle tip will not be exposed again, thereby more effectively avoiding the risk of cross infection caused by accidental contact with the needle tip after use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.