Flex circuit shielded optical sensor
AssigneeMasimo Corporation
InventorsGene Mason, Ammar Al-Ali, Thomas J. Gerhardt
Life of this patent
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Abstract
A flex circuit optical sensor has an integrated Faraday shield. A conductive trace layer disposed on a substrate is used to form a conductive grid which shields the face of a photodetector. A conductive ink layer is formed on a substrate side opposite the trace layer. The back and sides of the detector are shielded by flex circuit flaps that have the conductive ink layer but substantially exclude the trace layer so as to fold over and closely adhere to the detector body. The shielded substrate flaps advantageously eliminate a separate detector shield, which is typically fabricated with an etched copper part that must be attached to a flex circuit before mounting the detector.
Claims13
An optical sensor comprising:
- a plurality of electrical components including at least one detector capable of detecting light attenuated by body tissue;
- and
- an attachment tape including a foldover end including a plurality of end attachment wraps, the plurality of end attachment wraps extending outwardly from the foldover end, a connector end substantially opposite the foldover end, and a central body extended between the foldover end and the connector end, the central body including a plurality of middle attachment wraps, the plurality of middle attachment wraps extending outwardly from the central body, one of said middle attachment wraps extending further from the central body than an other of said middle attachment wraps, said end attachment wraps and said middle attachment wraps together forming an approximate boot shape wherein said one of said middle attachment wraps forms a toe and said other of said middle attachment wraps forms a heel, and wherein upon application to a tissue site, said end attachment wraps are configured to removably affix to said tissue, said heel is configured to removably affix to one of said end attachment wraps, and an end of said toe is configured to removably affix to said heel, thereby when applied, said end of said toe is an only end available for removal.
An optical sensor comprising:
- a plurality of electrical components including at least one detector capable of detecting light attenuated by body tissue;
- and
- a substrate including a first end including at least one flared attachment wing, a second end terminating in a sensor connector, and a central body extended between the first end and the second end, the central body including flared attachment wings to form an approximate boot shape, wherein the boot shape comprises a toe portion having a flared attachment wing extending outwardly from the central body and a heel portion having a flared attachment wing extending outwardly from an opposite side of the central body, the flared attachment wing of the heel portion extending outwardly from the central body substantially less than the flared attachment wing of the toe portion.
Dependencies are inferred from the claim text.