Syringe with retractable needle and safety lock
US6764465B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Jun 24, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3227
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a safety syringe for extracting blood, with retractable or removable needle that can be retracted into the syringe body or removed after use and safety locks that lock the retractable needle in an extended position during use and in a retracted position after use to ensure that the syringe is not reused or that the needle is not inadvertently extended. When retracted, the needle assembly is cocked at an angle identifying the syringe as used and adding further protection to prevent the needle from being inadvertently extended and exposed from the tube. These safety features work in conjunction to enhance the usability and increase the safety of the syringe. Thereby protecting medical workers from being injured by an exposed needle or contaminated by disease or infection from contact with the patient's blood present on a used needle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.