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US 2019/0290840 A1Published application
Drug Delivery Device Having A Cavity Sealed By A Pressurized Membrane
AssigneeInternational Business Machines Corporation
InventorsBING DANG, JOHN U. KNICKERBOCKER, JOANA S.B.T. MARIA, BUCKNELL C. WEBB, STEVEN L. WRIGHT
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Abstract
A digital biomedical device includes a substrate forming a reservoir, a membrane comprising a first layer and a second layer having a strain therebetween, the membrane sealing the reservoir, and a controller configured to activate the membrane and release at least a portion of the strain causing the membrane curl and open the reservoir.
Claims8
A digital biomedical device comprising:
- a substrate forming a reservoir;
- a membrane comprising a first layer and a second layer having a strain therebetween;
- a sealing material sealing the membrane to the substrate, wherein the membrane and sealing material maintain a pressure difference between an interior of the reservoir and an exterior of the reservoir;
- a controller;
- and
- a heater element disposed adjacent to the sealing material, wherein the heater element is controlled by the controller to heat the sealing material and allow the membrane to separate from a portion of the substrate, wherein the membrane, separated from the portion of the substrate, is configured to curl by a bending moment caused by the strain between the first layer and the second layer of the membrane.
3 more elements
Dependencies are inferred from the claim text.