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Sweat sensing devices with electromagnetically shielded sensors, interconnects, and electronics

A technology of electromagnetic shielding and electronic devices, applied in the direction of sensors, biological testing, diagnostic recording/measurement, etc.

Inactive Publication Date: 2018-08-21
UNIVERSITY OF CINCINNATI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For biofluidic sensors, sweat sensing is more challenging than traditional biofluidic and microfluidic sensors and sensing systems / devices

Method used

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  • Sweat sensing devices with electromagnetically shielded sensors, interconnects, and electronics
  • Sweat sensing devices with electromagnetically shielded sensors, interconnects, and electronics
  • Sweat sensing devices with electromagnetically shielded sensors, interconnects, and electronics

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example 1

[0046] Our calculations aim to reduce the fluid volume between the eccrine sweat duct and the sensor from 1 μL to 10 nL (10–100X), resulting in chronologically correlated sweat biosensing with a maximum resolution of ~2 min. Aspects of the disclosed invention include eliminating greater than 90% of the dead volume adjacent to the epidermal surface, mitigating surface contamination, and resulting in ultra-efficient transport of sweat across sub-mm electrochemical biosensor arrays. Ultra-efficient sweat sampling and delivery is critical for applications that require minute-level resolution, and even for those that do not, can greatly reduce the burden of sweat volume required to obtain viable samples. It should be recognized that the calculations below do not take into account certain effects such as surface non-uniformity and sweat contact angle hysteresis.

[0047] In all calculations here, the wicking pressures P1, P2, P3 are derived from the negative Laplace pressure The su...

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Abstract

A wearable sweat sensing device (200) configured to be placed on a wearer's skin (12) includes a sensor component, including at least one analyte-specific sensor (220) for measuring a target analyte in sweat, and at least one electromagnetic shield (290, 292) to protect at least a portion of the sensor component from electromagnetic interference. The at least one electromagnetic shield may includea first electromagnetic shield (290) for protecting the sensor component from electromagnetic interference originating outside the wearer's body and a second electromagnetic shield (292) for protecting the sensor component from electromagnetic interference originating from the wearer's body or propagating through the wearer's body.

Description

[0001] cross related application [0002] This application claims priority to US Provisional Application Serial No. 62 / 248,356, filed October 30, 2015, the entire disclosure of which is hereby incorporated by reference. Background technique [0003] Sweat sensing technology has enormous potential for applications ranging from athletics to neonatology, pharmacology monitoring, personal digital health, and more, just to name a few applications. Sweat contains many of the same biomarkers, chemicals, or solutes that are carried in blood, and can provide vital information, even allowing the diagnosis of disease, health conditions, exposure to toxins, manifestations, and other physiological attributes before any signs are present. In addition, sweating itself, the act of sweating, and other parameters, properties, solutes, or characteristics on, near, or beneath the epidermis can be measured to further reveal physiological information. [0004] If sweat has as much potential as a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/053A61B5/05G01N33/50
CPCA61B5/00A61B5/05A61B5/053A61B5/14517A61B2562/182A61B5/6833G01N27/06
Inventor 詹森·C·海肯费尔德
Owner UNIVERSITY OF CINCINNATI
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