| abstract |
APPARATUS FOR THE STORAGE OF A SWELLABLE HYDROPHILIC POLYMERIC GEL BODY SUCH AS A CRONTACT LENS OR OTHER IMPLANT COMPRISES A LIQUID CONTAINER DIVIDED INTO AT LEAST TWO PARTS BY A POROUS WALL AND HAVING A PHYSIOLOGIC LIQUID CONTAINED THEREIN, ONE OF SAID CONTAINER PARTS BEING ADAPTED TO HOLD SAID GEL BODY IMMERESED IN SAID LIQUID, A CATION RESIN EXCHANGE MATEIAL IMPREGNATED WITH A SURFACE ACTIVE METALLIC SILVER, SAID MATERIAL BEING LOCATED IN THE OTHER OF THE CONTAINER PARTS AND BEING SOLUBLE BY SAID LIQUID TO RELEASE SURFACE SILVER IONS OVER A PERIOD OF TIME TO THEREAFTER, FREELY FLOW THROUGH SAID POROUS WALL INTO CONTACT WITH SAID GEL BODY. |