Implants for administering substances and methods of producing mesoporous implants

US8318194B2 · kind B2 · utility

Assignee

• PSIMEDICA LIMITED · GB

Inventors

• Leigh Canham · Weston-super-Mare, GB
• Christopher P. Barrett · Malvern, GB
• Andrew P. Bowditch · Salisbury, GB
• Timothy I. Cox · Malvern, GB
• Peter J. Wright · Stavanger, NO

Key dates

• Filing date: Jun 28, 2010
• Grant date: Nov 27, 2012
• Expiry date: Jun 28, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P43/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A porous silicon implant impregnated with a beneficial substance, such as a micromineral required for healthy physiology, is implanted subcutaneously and is entirely corroded away over the following months/year to release the micromineral in a controlled manner. In a second embodiment the implant may have a large number of holes which contain beneficial substance and which are closed by bio-errordable doors of different thickness so as to stagger the release of the beneficial substance over time as the doors are breached.