Wireless surface mountable sensors and actuators

Patent metadata

Field	Value
Publication number	US-2021127975-A1
Application number	US-201816481147-A
Country	US
Kind code	A1
Filing date	Jan 26, 2018
Priority date	Jan 27, 2017
Publication date	May 6, 2021
Grant date	—

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.

First claim

1 - 7 . (canceled)

8 . A medical device, comprising:
a plurality of biologically interactive devices configured for interacting with a large area biological surface, the biologically interactive devices each comprising a sensor for measuring a physiological parameter of the biological surface; a wireless controller configured to wirelessly operate the plurality of biologically interactive devices; and a wireless transmitter for wirelessly communicating an output from said plurality of biologically interactive devices to a remote receiver, wherein the wireless controller provides two-way communication with the plurality of biologically interactive devices to acquire physiological parameter data from the plurality of sensors and to operate the plurality of biologically interactive devices; wherein the wireless controller is configured to acquire a continuous data stream from said medical device and generate a spatio-temporal map of one or more physiological parameters detected by the sensors; and wherein the spatio-temporal map has a map area that corresponds to a full-body surface.

9 . The medical device of claim 8 , wherein the full-body surface corresponds to at least 80% of a living animal skin surface.

10 . The medical device of claim 8 , further comprising a processor to provide an average physiological parameter over the full-body surface, a time-integrated physiological parameter, a rate of change of the physiological parameter, or any combination thereof.

11 - 19 . (canceled)

20 . A medical device, comprising:
a plurality of biologically interactive devices configured for interacting with a large area biological surface, the biologically interactive devices each comprising a sensor for measuring a physiological parameter of the biological surface, wherein each biologically interactive device comprises:
an integrated circuit chip for NFC communication;
a wireless energy harvester;
a temperature sensor;
an analog to digital converter; and
a pressure sensor;
a wireless controller configured to wirelessly operate the plurality of biologically interactive devices; a wireless transmitter for wirelessly communicating an output from said plurality of biologically interactive devices to a remote receiver; and a magnetic inductive loop antenna configured to wirelessly interface with an external reader antenna, wherein the external reader antenna is embedded in an external reader antenna substrate.

21 . The medical device of claim 20 , wherein the external reader substrate is a sheet, a mattress cover, or a mattress surface.

22 - 30 . (canceled)

31 . A medical device, comprising:
a plurality of biologically interactive devices configured for interacting with a large area biological surface, the biologically interactive devices each comprising a sensor for measuring a physiological parameter of the biological surface; a wireless controller configured to wirelessly operate the plurality of biologically interactive devices; and a wireless transmitter for wirelessly communicating an output from said plurality of biologically interactive devices to a remote receiver wherein medical device is adapted for full-body spatio-temporal mapping of the physiological parameter over a skin surface area; and wherein a number of individual biologically interactive devices are selected and spatially positioned so as to achieve an average physiological parameter spatial resolution at least as good as 5 cm over a monitored surface area.

32 . The medical device of claim 31 , having a device footprint that is greater than or equal to 10 cm 2 and less than or equal to 20 m 2 .

33 - 35 . (canceled)

36 . A method of monitoring a physiological parameter, the method comprising the steps of:
interfacing a plurality of spatially distributed biologically interactive devices with a body surface; detecting a physiological parameter with a sensor in each of the plurality of spatially distributed biologically interactive devices; wirelessly transmitting the detected physiological parameter to a receiver; generating a spatial distribution map of the detected physiological parameter across the interfaced body surface; thereby monitoring the physiological parameter; and periodically repeating the interfacing step to generate a spatio-temporal distribution map of the detected physiological parameter.

37 . The method of claim 36 , wherein the sensor is a pressure sensor for evaluating risk of a skin-ulcer in a patient positioned on a bed.

38 . The method of claim 36 , wherein the sensor is a temperature sensor for a sleep study.

39 . The method of claim 36 , wherein the body surface corresponds to at least 80% of a whole-animal body surface area.

Assignees

• Univ Northwestern
• Univ Illinois

Inventors

• Rogers John A
• Han Seungyong
• Won Sang Min
• Kim Jeonghyun

Classifications

• A61B5/24

  Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof · CPC title

• A61B2560/0214

  of power generation or supply · CPC title

• A61B5/7275

  Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor · CPC title

• A61B2503/40

  Animals · CPC title

• A61B5/002

  Monitoring the patient using a local or closed circuit, e.g. in a room or building (A61B5/0017 takes precedence) · CPC title