公开(公告)号：US20230255483A1

公开(公告)日：2023-08-17

申请号：US18009384

申请日：2021-06-10

Applicant: NORTHWESTERN UNIVERSITY

Inventor： John A. Rogers ,  Anthony R. Banks ,  Kyeongha Kwon ,  Jan-kai Chang

IPC: A61B5/00 ,  A61B5/01

CPC classification number: A61B5/0008 ,  A61B5/01 ,  A61B5/442 ,  A61B5/443 ,  A61B5/445 ,  A61B2562/0271 ,  A61B2562/164 ,  A61B2562/227

Abstract: The invention relates to a hydration sensor comprising a sensing module operably disposed on a target area of interest of skin of a living subject for detecting data associated with thermal properties of the skin; and a wireless platform coupled with the sensing module for wireless data transmission between the sensing module and an external device. The sensing module comprises a thermal actuator for operably heating the target area of interest thereof; and a sensing circuit for simultaneously detecting a transient temperature change thereof to determine thermal properties of the skin.

公开(公告)号：US11666240B2

公开(公告)日：2023-06-06

申请号：US17417180

申请日：2020-01-03

Applicant: NORTHWESTERN UNIVERSITY

Inventor： John A. Rogers ,  Shuai Xu ,  Seung Yun Heo ,  Kyeongha Kwon ,  Jong Yoon Lee

IPC: A61B5/05 ,  A61B5/318 ,  A61B5/389 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/145 ,  A61B5/1455 ,  G01J1/44 ,  H04Q9/00

CPC classification number: A61B5/05 ,  A61B5/002 ,  A61B5/0006 ,  A61B5/0022 ,  A61B5/02055 ,  A61B5/14517 ,  A61B5/14552 ,  A61B5/318 ,  A61B5/389 ,  A61B5/681 ,  A61B5/6804 ,  A61B5/742 ,  A61B5/746 ,  A61B5/7455 ,  G01J1/44 ,  H04Q9/00 ,  A61B2560/0242 ,  A61B2562/0204 ,  A61B2562/029 ,  A61B2562/0219 ,  A61B2562/0247 ,  A61B2562/0271 ,  G01J2001/446 ,  H04Q2209/43 ,  H04Q2209/826

Abstract: An electronic system for monitoring a physical parameter includes an ADM comprising an accumulation mode sensor for measuring the physical parameter by generating electrical energy associated with the physical parameter in response to a surrounding condition, and an energy storing device coupled to the accumulation mode sensor for accumulatively storing the generated electrical energy; a power source; and an SoC coupling with the ADM and the power source, configured such that the stored electrical energy is monitored, and when the stored electrical energy is equal to or greater than a pre-defined threshold, a wake-up event is generated to trigger the SoC to operates in a run mode in which the physical parameter is wirelessly transmitted to a receiver and the stored electrical energy in the energy storing device is discharged, and then the SoC returns to a sleep mode in which a minimal power is consumed.

公开(公告)号：US20220330885A1

公开(公告)日：2022-10-20

申请号：US17641525

申请日：2020-09-11

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Shuai Xu ,  Ha Uk Chung ,  Hyoyoung Jeong ,  Dong Hyun Kim ,  Jong Yoon Lee ,  Dennis Ryu ,  John A. Rogers

IPC: A61B5/00 ,  A61B5/0205 ,  A61B8/02 ,  A61B8/08 ,  A61B8/00 ,  A61B5/391 ,  A61B5/344 ,  A61B5/282 ,  A61B5/11 ,  A61B5/113 ,  A61B5/1455

Abstract: A sensor network for pregnancy monitoring of a subject includes a plurality of sensor systems time-synchronized to each other, each sensor system placed on a respective region of the subject and having a sensor member configured to detect data associated with at least one of physiological parameters of the subject, and a Bluetooth low energy system-on-a-chip configured to process and transmit the detected data; and a controller adapted in wireless communication with the plurality of sensor systems and configured to receive, from the plurality of sensor systems, to process, and to display the physiological parameters.

公开(公告)号：US11439356B2

公开(公告)日：2022-09-13

申请号：US17568771

申请日：2022-01-05

Applicant: NORTHWESTERN UNIVERSITY

Inventor： John A. Rogers ,  Siddharth Krishnan ,  Tyler R. Ray ,  Amit B. Ayer ,  Philipp Gutruf ,  Jonathan T. Reeder ,  Kun Hyuck Lee ,  Chun-Ju Su

IPC: A61B5/00 ,  A61B5/01

Abstract: Provided are conformable devices to measure subdermal fluid flow and related methods. A soft, stretchable and flexible substrate supports a thermal actuator and various specially positioned temperature sensors. A microprocessor in electronic communication with sensors calculates subdermal fluid flow from the measured upstream and downstream temperatures, as well as various application-dependent parameters. Devices and methods provided herein are particularly useful for measuring cerebral spinal fluid in a ventricular shunt placed for treatment of hydrocephalus.

公开(公告)号：US11179564B2

公开(公告)日：2021-11-23

申请号：US16608218

申请日：2018-04-25

Applicant: Washington University ,  Northwestern University

Inventor： Wilson Z. Ray ,  Matthew R. MacEwan ,  Zohny S. Zohny ,  John A. Rogers

IPC: A61N1/20 ,  A61N1/375 ,  A61N1/372 ,  A61N1/05 ,  A61N1/04

Abstract: A system for stimulating tissue generally comprises a resorbable implant. The resorbable implant includes a substrate, at least one contact, and a transceiver, wherein the substrate, the at least one contact, and the transceiver are resorbable. The system also includes a controller configured to communicate with the transceiver of the resorbable implant and a power supply connected to the controller. The controller delivers power to the resorbable implant from the power supply. The resorbable implant delivers electrical stimulation to tissue when the resorbable implant receives power.

公开(公告)号：US11058300B2

公开(公告)日：2021-07-13

申请号：US16481147

申请日：2018-01-26

Applicant: NORTHWESTERN UNIVERSITY ,  THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS

Inventor： John A. Rogers ,  Seungyong Han ,  Sang Min Won ,  Jeonghyun Kim

IPC: A61B5/00 ,  A61B5/0205 ,  A61B5/026 ,  A61B5/01 ,  A61B5/0533 ,  A61B5/145 ,  A61B5/08

Abstract: Provided herein are medical devices comprising a plurality of biologically interactive devices configured for interacting with a large area biological surface. The biologically interactive devices each may comprise a sensor for measuring a physiological parameter. A wireless controller is configured to wirelessly operate the plurality of biologically interactive devices. A wireless transmitter is configured for wirelessly communicating an output from said plurality of biologically interactive devices to a remote receiver. The medical devices are particularly suited for measuring one or both of pressure and temperature, with compatibility for incorporating additional sensors of interest.

公开(公告)号：US09613911B2

公开(公告)日：2017-04-04

申请号：US14766333

申请日：2014-02-05

Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS ,  NORTHWESTERN UNIVERSITY

Inventor： John A. Rogers ,  Jonathan Fan ,  Woon-Hong Yeo ,  Yewang Su ,  Yonggang Huang ,  Yihui Zhang

IPC: H01L23/538 ,  H05K1/02 ,  H01L23/00 ,  H01L23/552

CPC classification number: H01L23/5387 ,  H01L23/538 ,  H01L23/5386 ,  H01L23/5389 ,  H01L23/552 ,  H01L23/564 ,  H01L24/97 ,  H01L29/78603 ,  H01L2224/16225 ,  H01L2924/12032 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12043 ,  H05K1/0283 ,  H01L2924/00

Abstract: The present invention provides electronic circuits, devices and device components including one or more stretchable components, such as stretchable electrical interconnects, electrodes and/or semiconductor components. Stretchability of some of the present systems is achieved via a materials level integration of stretchable metallic or semiconducting structures with soft, elastomeric materials in a configuration allowing for elastic deformations to occur in a repeatable and well-defined way. The stretchable device geometries and hard-soft materials integration approaches of the invention provide a combination of advance electronic function and compliant mechanics supporting a broad range of device applications including sensing, actuation, power storage and communications.