Implantable refillable and ported controlled release drug delivery device
US6852106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Dec 13, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0693
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable, refillable, rate controlled drug delivery device is disclosed that includes a base structure having at least a first opening and a second opening, the base structure defining a chamber, a septum covering the first opening and configured to substantially prevent leakage from the first opening to an exterior of the device, a drug delivery tube comprising a first and second distal end, wherein the first distal end of the tube communicates with the chamber through the second opening, and at least one rate-limiting permeable membrane disposed across a passage between the base structure and the second distal end of the drug delivery tube, which membrane passively regulates drug delivery. The drug delivery device is used to provide controlled drug delivery to an internal portion of the body and is advantageously leak-proof and does not rely on a pressure differential to drive the drug from the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.