Pressure sensitive needle guard
US4986819A · kind A · utility
39Cited by
13References
18Claims
0Family size
Inventor
Key dates
| Filing date | Sep 26, 1989 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Sep 26, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/3257
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention features a needle guard for a hypodermic syringe that will prevent repuncture by a used needle. The needle guard has a flexible membrane that expands when pressure actuated to cover and protect the injecting tip of the syringe needle. The membrane is characterized by a small, unobtrusive profile in the inactivated state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.