Implantable device for chronically injecting a substance, in particular a therapeutant
US4710167A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 1986 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | May 21, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M39/0208
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention concerns a device to be implanted in an accessible subcutaneous zone of the body of a patient in order to constitute a chronic injection site of a liquid, in particular a therapeutant. This device includes an injection chamber (12) bounded by an integral rigid case (11) provided for that purpose with a recess of rounded, concave shape; the case (11) is provided around the recess with a rim (13) on which is impermeably fixed the rim of an elastic membrane (14) which in its rest state is essentially plane. A catheter (17) is connected to the injection chamber (12) and issues into the deepest part of the recess forming this chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.