Lockable safety shield for a prefillable syringe
US5697908A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1996 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Sep 26, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3109
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lockable safety shield for a prefillable syringe is provided. The design of the lockable safety shield enhances pharmaceutical manufacturers' ease of assembling the various components as part of its filling or processing of the prefillable syringes in normal practice. A collar is attachable to the distal hub of the prefillable syringe. A safety shield is axially slidable over the collar between a retracted position, wherein the distal end of the piercing element associated with the prefillable syringe is exposed, and an extended position, wherein the safety shield is locked to the collar to protectively cover the distal end of the piercing element. The safety shield includes locking structure configured so that the shield, as supplied to the pharmaceutical manufacturer, can be easily fitted to the syringe. The locking structure includes at least one deflectable arm provided on the body of the shield. The deflectable arm includes a proximal end deflectable towards the interior of the shield. A stop member is provided on the interior of a shield in spaced relation to the proximal end of the deflectable arm. A ring is axially slidable over the shield to deflect the arm towards the i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.