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US 2025/0128042 A1Published application
Hemocompatible optical sensor for a medical device
AssigneeABIOMED, Inc.
InventorDustin Seth West
Life of this patent
Estimating the term…
Abstract
An optical assembly for placement on a medical device. The optical assembly has a diaphragm suspended on and over an optical cavity. The optical cavity has a sensor dot formed thereon. The diaphragm is covered with a biocompatible platinum silicide layer.
Claims15
An optical sensor assembly for use in a blood pump assembly, the optical sensor assembly comprising:
- a visor having an inner surface and an outer surface;
- an optical sensor disposed within the visor, the optical sensor comprising an optical sensor inner surface and a diaphragm disposed over a cavity in a substrate, wherein the diaphragm has an exposed surface and exposed sides;
- and
- a protective layer being deposited over and covering the exposed surface and exposed sides of the diaphragm,
- wherein the protective layer is one of a platinum-containing layer, a platinum silicide layer, or parylene
- and wherein the optical sensor optionally comprises a dot.
3 more elements
A blood pump assembly comprising:
- a pump,
- a motor,
- a rotor,
- a pump housing,
- a cannula,
- an atraumatic extension, and an optical sensor assembly comprising:
- a visor having an inner surface and an outer surface;
- an optical sensor disposed within the visor, the optical sensor comprising an optical sensor inner surface and a diaphragm disposed over a cavity in a substrate, wherein the diaphragm has an exposed surface and exposed sides;
- and
- a protective layer being deposited over and covering the exposed surface and exposed sides of the diaphragm,
- wherein the protective layer is one of a platinum-containing layer, a platinum silicide layer, or parylene
- and wherein the optical sensor optionally comprises a dot.
9 more elements
A method of fabricating an optical sensor comprising:
- defining a cavity;
- forming a silicon layer over a glass substrate via masking;
- and
- forming a protective layer over the silicon layer and over an uncovered edge portion of the silicon layer.
1 more element
Dependencies are inferred from the claim text.