Locking mechanism for nozzle assembly
US5875976A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1996 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Dec 24, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/5073
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed toward a locking mechanism for aiding in the prevention of accidental or unintentional disengagement of the nozzle assembly from a needleless injection device. In one embodiment of the locking mechanism, a stud positioned on the nozzle assembly engages a recess in the injector to help to deter the nozzle assembly from rotating during firing of the injector. In another embodiment of the locking mechanism, a nib on the nozzle assembly engages a recess in the injector to deter the nozzle assembly from rotating during firing of the injector. A retaining element may be utilized within the injector to provide the recesses for engagement with the locking mechanisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.