Patent ID: 11883165
Assignee: NORTHWESTERN UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC A  B  G | IPC A  B

Claim 0:
1. A microfluidic system for measuring a characteristic of a biofluid, comprising:
a flexible substrate;
a collection layer embedded in or supported by the flexible substrate, wherein the collection layer is configured to promote transport of the biofluid from a skin surface;
at least one reservoir chamber embossed in the collection layer, the at least one reservoir chamber having:
an absorbent provided to receive at least a portion of the biofluid from the collection layer; and
a sensor for measuring the characteristic of the biofluid received by the absorbent; wherein the absorbent provides a force for transporting the biofluid that is greater than a capillary force of the collection layer for transporting the biofluid; and

a protective layer embedded in or supported by the flexible substrate, wherein the protective layer is configured to prevent the biofluid from escaping from the at least one reservoir chamber.