Michelle L Hoffman

US Patent:

20220409104, Dec 29, 2022

Filed:

Aug 17, 2022

Appl. No.:

17/820305

Inventors:

- Cincinnati OH, US
Michelle D. Hoffman - Wyoming OH, US
Mikel Larson - Cincinnati OH, US
Nicholas Bailey - Cincinnati OH, US
Andrew Beckman - Loveland OH, US
Adam Hauke - New Richmond OH, US

International Classification:

A61B 5/145
A61B 5/00
G01F 1/684
G01F 5/00

Abstract:

Devices and methods are described herein for directly and accurately measuring sweat flow rates using miniaturized thermal flow rate sensors. The devices () include the flow rate sensors () in or adjacent to a microfluidic component () of a wearable sweat sensing device. The devices and methods optimize the sensitivity of the flow rate sensors, while minimizing the presence of noise, in order to accurately and directly measure sweat flow rates.

US Patent:

20230098583, Mar 30, 2023

Filed:

Nov 3, 2022

Appl. No.:

18/052398

Inventors:

- Cincinnati OH, US
Mikel Larson - Cincinnati OH, US
Michelle D. Hoffman - Wyoming OH, US
Eliot Gomez - Cincinnati OH, US
Jason Charles Heikenfeld - Cincinnati OH, US
Isaac Stamper - Morrow OH, US

International Classification:

B01L 3/00
A61B 5/145

Abstract:

A device for determining the amount or concentration of an analyte in a fluid sample and a flow rate of the fluid sample in a channel is provided. The device includes a chamber including a channel and an opening, the channel in fluid communication with the opening. The device further includes a wicking component positioned adjacent to the opening configured to receive an amount of fluid from the channel. The device may further include an analyte sensor positioned on the wicking component, the analyte sensor configured to detect an analyte in fluid in contact with the analyte sensor, wherein the wicking component is configured to contact the amount of fluid with the analyte sensor. Alternatively the device may include at least one pair of electrodes configured to determine a flow rate of the fluid in the channel.

US Patent:

20200315503, Oct 8, 2020

Filed:

Dec 18, 2018

Appl. No.:

16/954226

Inventors:

- Cincinnati OH, US
Michelle Hoffman - Wyoming OH, US
Mikel Larson - Cincinnati OH, US
Nicholas Bailey - Cincinnati OH, US
Andrew Beckman - Loveland OH, US
Adam Hauke - New Richmond OH, US

International Classification:

A61B 5/145
A61B 5/00
G01F 1/684
G01F 5/00

Abstract:

Devices and methods are described herein for directly and accurately measuring sweat flow rates using miniaturized thermal flow rate sensors. The devices () include the flow rate sensors () in or adjacent to a microfluidic component () of a wearable sweat sensing device. The devices and methods optimize the sensitivity of the flow rate sensors, while minimizing the presence of noise, in order to accurately and directly measure sweat flow rates.

US Patent:

20200298231, Sep 24, 2020

Filed:

Sep 21, 2018

Appl. No.:

16/649211

Inventors:

- Cincinnati OH, US
Michelle Hoffman - Wyoming OH, US
Eliot Gomez - Cincinnati OH, US
Jason Charles Heikenfeld - Cincinnati OH, US
Isaac Stamper - Morrow OH, US

International Classification:

B01L 3/00
A61B 5/145

Abstract:

A device for determining the amount or concentration of an analyte in a fluid sample and a flow rate of the fluid sample in a channel is provided. The device includes a chamber including a channel and an opening the channel in fluid communication with the opening. The device further includes a wicking component positioned adjacent to the opening configured to receive an amount of fluid from the channel. The device may further include an analyte sensor positioned on the wicking component, the analyte sensor configured to detect an analyte in fluid in contact with the analyte sensor, wherein the wicking component is configured to contact the amount of fluid with the analyte sensor. Alternatively the device may include at least one pair of electrodes configured to determine a flow rate of the fluid in the channel.