Packaging for an active contact lens
View Patent ↗An eye-mountable device, having an anterior convex side and a posterior concave side, is packaged in a container having a base and a wall. The wall extends from the base and defines an opening of the container. Disposed within the container is a pedestal, which has a first end attached to the base of the container and a second end opposite the first end. The eye-mountable device is mounted on the pedestal such that the posterior concave side contacts the second end of the pedestal and the eye-mountable device is elevated from the base of the container. The opening of the container can be sealed by a lidstock.
1. A package comprising:
a container having a base and a wall, wherein the wall extends from the base and defines an opening opposite the base;
a pedestal disposed within the container, wherein the pedestal has a first end and a second end opposite the first end, wherein the first end is attached to the base of the container;
an eye-mountable device having a first side and a second side opposite the first side, wherein the eye-mountable device is mounted on the pedestal such that the second side contacts the second end of the pedestal and the eye-mountable device is elevated from the base of the container; and
a lidstock that seals the opening of the container, wherein the lidstock contacts the first side of the eye-mountable device to hold the eye-mountable device against the pedestal, and wherein the lidstock holds the eye-mountable device against the pedestal without distorting a shape of the eye-mountable device,
wherein the package is substantially free of liquids.
2. The package of claim 1 , wherein the pedestal includes an annular ring, wherein the annular ring is segmented into a plurality of separate segments.
3. The package of claim 1 , wherein the lidstock comprises a porous membrane configured to allow gas to permeate through the lidstock while preventing liquids from permeating through the lidstock.
4. The package of claim 3 , wherein the porous membrane is configured to allow ethylene oxide to permeate through the lidstock.
5. The package of claim 1 , wherein the container comprises a polymeric material.
6. The package of claim 5 , wherein the polymeric material is polyethylene terephthalate glycol.
7. The package of claim 1 , wherein the eye-mountable device comprises electronics that include at least one sensor.
8. The package of claim 7 , wherein the at least sensor comprises an electrochemical sensor.
9. The package of claim 8 , wherein the eye-mountable device further comprises an enzyme proximate the electrochemical sensor, and wherein the enzyme selectively reacts with an analyte.
10. The package of claim 9 , wherein the enzyme is glucose oxidase and the analyte is glucose.
11. The package of claim 7 , wherein the eye-mountable device is mounted on the pedestal such that the at least one sensor is presented in a specific orientation.
12. The package of claim 11 , wherein the at least one sensor in the eye-mountable device faces the first side.
13. The package of claim 1 , wherein the first side of the eye-mountable device is convex and the second side of the eye-mountable device is concave.
14. The package of claim 2 , wherein the second end of the pedestal comprises inclined surfaces of the segments of the annular ring.
15. The package of claim 14 , wherein the inclined surfaces conform to a curvature of the second side of the eye-mountable device.