System for injecting a liquid into a body, such as that of a patient
US8622959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2009 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Dec 28, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2209/045
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a system for injecting a liquid into a body, comprising an implantable chamber disposed under the skin and an injection device including: a base bearing an injection needle having a free end that is intended to be inserted into the chamber; an injection conduit connected to the needle; means for extracting the needle; means that can be actuated to generate excess pressure in the injection conduit; synchronization means between the extraction means and the generation means for actuating the generation means during a needle extraction phase. The synchronization means can essentially only actuate the generation means when the free end of the needle is located in the chamber during the needle extraction phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.