Implantable intraocular pressure sensors and methods of use
AssigneeQura, Inc.
InventorsDouglas P. Adams, Celso Tello, Marcel David Ackermann, Jean-Noël Fehr
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Abstract
Intraocular pressure sensors, systems, and methods of use. Implantable intraocular pressure sensing devices that are hermetically sealed and adapted to wirelessly communicate with an external device. The implantable devices can include a hermetically sealed housing, the hermetically sealed housing including therein: an antenna in electrical communication with a rechargeable power source, the rechargeable power source in electrical communication with an ASIC, and the ASIC in electrical communication with a pressure sensor.
Claims36
A hermetically sealed implantable pressure sensor assembly adapted to wirelessly communicate with an external device, comprising:
- a casing comprising a titanium layer;
- and
- a hermetically sealed housing, the hermetically sealed housing including therein:
- an antenna in electrical communication with a rechargeable power source,
- the rechargeable power source in electrical communication with an application-specific integrated circuit (ASIC), and
- the ASIC in electrical communication with a pressure sensor;
- wherein said titanium layer is coated with an electrically insulating ceramic layer wherein said ceramic layer has lattice constants that match those of titanium.
A hermetically sealed implantable pressure sensor assembly adapted to wirelessly communicate with an external device, comprising:
- a casing comprising a titanium layer;
- and
- a hermetically sealed housing, the hermetically sealed housing including therein:
- an antenna in electrical communication with a rechargeable power source,
- the rechargeable power source in electrical communication with an application-specific integrated circuit (ASIC), and
- the ASIC in electrical communication with a pressure sensor;
- wherein said titanium layer is coated with a hydrogel layer, wherein said hydrogel layer has a gradient in cross-link density.
A hermetically sealed implantable pressure sensor assembly adapted to wirelessly communicate with an external device, comprising:
- a hermetically sealed housing, the hermetically sealed housing including therein:
- an antenna in electrical communication with a rechargeable power source,
- the rechargeable power source in electrical communication with an application-specific integrated circuit (ASIC), and
- the ASIC in electrical communication with a pressure sensor,
- wherein said pressure sensor comprises a hermetically sealed module comprising an inert fluid situated inside said module, and
- wherein said hermetic seal encasing said pressure sensor comprises a Titanium foil of thickness in a range of 5-25 microns, said foil being undulated to enhance its surface area and resistance to mechanical stress.
Dependencies are inferred from the claim text.