Device and method for injecting
US7473241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2003 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jan 8, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/482
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a device for injecting a fluid including a pressure chamber for accommodating the fluid, a piston for expelling the fluid from the pressure chamber, a pressure mechanism for generating an expelling impulse or force, and a transfer body coupled to the pressure mechanism, wherein, in an initial position the transfer body is arranged at a distance away from a contact point for transferring a force or impulse onto the piston. The invention encompasses a method for injecting a fluid wherein a transfer body is freely accelerated for a distance and strikes a contact point thus generating an initial impulse or pressure to expel the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.