Biocompatible rechargable energization elements for biomedical devices with electroless sealing layers
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsFrederick A. Flitsch, Milburn Ebenezer Muthu, Randall B. Pugh, Adam Toner, Lawrence Edward Weinstein
Life of this patent
Estimating the term…
Abstract
Methods and apparatus to form biocompatible energization elements are described. In some embodiments, the methods and apparatus to form the biocompatible energization elements involve forming cavities comprising active cathode chemistry. The active elements of the cathode and anode are sealed with a laminate stack of biocompatible material. In some embodiments, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements.
Claims16
A biocompatible energization element comprising
- a cathode spacer layer;
- a first hole located in the cathode spacer layer;
- a first current collector coated with anode chemicals, wherein the first current collector is attached to a first surface of the cathode spacer layer, and wherein a first cavity is created between sides of the first hole and a first surface of the first current collector coated with anode chemicals;
- a separator layer, wherein the separator layer is formed within the first cavity after a separator precursor mixture is dispensed into the cavity;
- a second cavity between sides of the first hole and a first surface of the separator layer, wherein the second cavity is filled with cathode chemicals;
- a second current collector, wherein the second current collector is in electrical connection with the cathode chemicals;
- an electrolyte comprising electrolyte chemicals;
- and
- a plated metallic exterior coating, wherein the plated metallic exterior coating comprises a portion that is plated with electroless plating, and wherein the thickness of the plated metallic exterior coating is thick enough to act as a barrier to ingress and egress of moisture from the biochemical energization element, and wherein a blocking material prevents the plated metallic exterior coating from forming in the region of one or more of the anode contact and the cathode contact.
Dependencies are inferred from the claim text.