Needle insertion and retraction mechanism
US10646643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2016 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Dec 22, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/2492
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method are provided for preventing a sharp stick hazard from a needle tip of an automatic injector device. In some embodiments, a skin contact surface of the device is attached to an injection site, for example by an adhesive. Optionally a locking mechanism holds a needle extended into an injection site. A body of the device is optionally movably attached to the skin contact surface. Pulling the body away from the injection site optionally moves the body with respect to the skin contact surface. Movement of the body with respect to the skin contact surface optionally moves interlinked parts of the locking mechanism, releasing the locking mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.