| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an implant to administer micronutrient, trace element or trace mineral. <P>SOLUTION: A device includes a carrier material based on porous silicon of resorption or living body erosion, and an effective material. A porous silicon implant 60 impregnated with an efffective 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 62 may have a large number of holes 72 which contain beneficial substance and which are closed by bio-errodable doors 76, 78 of different thickness so as to stagger the release of the beneficial substance over time as the doors are breached. <P>COPYRIGHT: (C)2013,JPO&INPIT |
