Patents by Inventor Xiaonao Liu

Xiaonao Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250135093
    Abstract: A system for wound monitoring and pathogen detection includes a sensor device having an inlet connected to a NPTW dressing and an outlet connected to a NPTW pump. The sensor device includes a sensor array configured to detect a gaseous emission from one or more pathogens present in a wound by generating signals upon exposure to one or more compounds in the gas phase; a microcontroller (MCU) operatively coupled with the sensor array, the MCU configured to process signals from the sensor array to identify the one or more compounds; a wireless communication component for transmitting data from the MCU to one or more external devices; and one or more visual indicators that presents information comprising an operational mode of the sensor device and a presence or absence of pathogen in the gaseous emission. A method for wound monitoring and pathogen detection is also provided.
    Type: Application
    Filed: October 31, 2024
    Publication date: May 1, 2025
    Inventors: Xiaonao LIU, Taejun KO, Deyu LIU, Derese GETNET
  • Publication number: 20240426806
    Abstract: Sensors containing one or more metal oxides as the sensor material are used for detecting pathogen-derived VOCs, e.g., VOCs emitting from infectious wounds. The metal oxides may contain one or more metal elements selected from aluminum, antimony, bismuth, boron, cerium, chromium, cobalt, copper, gold, indium, iridium, iron, lanthanum, lead, manganese, molybdenum, nickel, niobium, osmium, palladium, platinum, rhodium, ruthenium, selenium, silicon, silver, tantalum, tellurium, terbium, tin, titanium, tungsten, vanadium, ytterbium, yttrium, zinc, and zirconium. A sensor device may have one or more sensors, which detects and records a variety of VOCs that are indicative of existence of pathogens, and the pathogens are associated with dieses and/or infections.
    Type: Application
    Filed: September 10, 2024
    Publication date: December 26, 2024
    Inventors: Xiaonao LIU, Taejun KO, Buyu YEH
  • Publication number: 20240350061
    Abstract: A stretchable sensor array system includes a stretchable substrate, a sensor array comprising a plurality of sensors deposited on the substrate, and a computing device. Each senor has a conductive electrode that contains one or more carbonaceous materials and is configured to respond to a parameter selecting from pressure, temperature, humidity, and chemical substances, and each sensor is signally connected to the computing device and transmits signals representing the parameter to the computing device for storage and/or processing. The stretchable sensor array system can be used for patient monitoring such as pressuring ulcer monitoring and prevention as well as training simulation such as palpation training and analysis. A training simulator includes one or more stretchable sensor arrays affixed to a manikin, a garment, or a helmet, etc., and provide data reflecting the training activity, e.g., palpation.
    Type: Application
    Filed: April 24, 2024
    Publication date: October 24, 2024
    Inventors: Xiaonao LIU, Taejun KO, Derese Getnet
  • Publication number: 20240277106
    Abstract: A smart insole for a shoe has a plurality of sensors, a wireless communication device, and a microcontroller unit connected thereto. The smart insole and/or the shoe are configured to monitor the movement of a subject and to send sensor data to an external device. The external device, e.g., a computing device, is equipped to analyze the sensor data using an algorithm. The result of the analysis can be further sent to another device accessible to the subject or a person advising the subject. The subject can adjust his/her movements according to the result of the analysis. The plurality of sensor may include sensors configured to measure pressure, VOCs, heart rate, respiratory rate, blood oxygen saturation, blood pressure, hydration level, position & balance, body strain, neurological functioning, brain activity, cranial pressure, auscultatory information, body fat density, and muscle density.
    Type: Application
    Filed: February 16, 2024
    Publication date: August 22, 2024
    Inventors: Taejun KO, Xiaonao LIU
  • Publication number: 20230200725
    Abstract: According to a present invention embodiment, at least one sensor detects one or more gases emanating from one or more pathogens in a wound that produce an infection. The at least one sensor includes sensing materials that change one or more properties in response to a presence of the one or more gases. At least one processor analyzes information from the at least one sensor to identify the one or more pathogens and determine a presence of the infection in the wound. The one or more pathogens are identified based on patterns of changes of the one or more properties indicating corresponding pathogens. The at least one sensor may be disposed within one of a wearable device, a portable device, and a wound dressing. In addition, a negative pressure source may be utilized to apply negative pressure to the wound to promote healing.
    Type: Application
    Filed: March 7, 2023
    Publication date: June 29, 2023
    Inventor: Xiaonao LIU
  • Publication number: 20220369965
    Abstract: A device for monitoring one or more health conditions of a subject in need thereof has a plurality of sensor arrays adapted to detect, from a skin surface of the subject, a plurality of volatile organic compounds (VOCs), one or more vital signs, or both, and to generate electrical signals; one or more processors for processing the electrical signals from the plurality of sensors, generating data, and diagnosing one or more health conditions of the subject by correlating the generated data with the one or more health conditions; an interface for outputting data and/or receiving input commands; and a fixing member for placing the device to the skin surface of the subject.
    Type: Application
    Filed: May 23, 2022
    Publication date: November 24, 2022
    Inventor: Xiaonao LIU
  • Patent number: 11353419
    Abstract: A method of detecting acetone in a gas sample, comprising, at an operation temperature of 50° C. or less, exposing the gas sample to a gas sensor comprising an electrode and a sensing material deposited on the electrode, wherein the sensing material comprises tungsten bronze, and a level of the acetone in the gas sample is detected by a change in resistivity of the sensing material.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: June 7, 2022
    Assignee: TAO TREASURES, LLC
    Inventors: Xiaonao Liu, Yifeng Shi
  • Patent number: 10780411
    Abstract: A multi-channel direct-deposit assembly method is disclosed to high-throughput synthesize three-dimensional macroporous/mesoporous (3DMM) material array with precisely controlled composition, pore size, and pore structure. The macropore size of the synthesized 3DMM material is in the range of 50-1000 nm; the mesopore size of the synthesized 3DMM material is in the range of 1-50 nm. The surface area of the 3DMM material is in the range of 20-1000 m2/g. The 3DMM material array can be used for rapid synthesis, screening and manufacture of catalysts and nanosensors.
    Type: Grant
    Filed: February 17, 2018
    Date of Patent: September 22, 2020
    Assignee: TAO TREASURES, LLC
    Inventors: Xiaonao Liu, Yifeng Shi
  • Publication number: 20190360960
    Abstract: A method of detecting acetone in a gas sample, comprising, at an operation temperature of 50° C. or less, exposing the gas sample to a gas sensor comprising an electrode and a sensing material deposited on the electrode, wherein the sensing material comprises tungsten bronze, and a level of the acetone in the gas sample is detected by a change in resistivity of the sensing material.
    Type: Application
    Filed: May 24, 2019
    Publication date: November 28, 2019
    Inventors: Xiaonao LIU, Yifeng SHI
  • Publication number: 20190336932
    Abstract: A multi-channel direct-deposit assembly method is disclosed to high-throughput synthesize three-dimensional macroporous/mesoporous (3DMM) material array with precisely controlled composition, pore size, and pore structure. The macropore size of the synthesized 3DMM material is in the range of 50-1000 nm; the mesopore size of the synthesized 3DMM material is in the range of 1-50 nm. The surface area of the 3DMM material is in the range of 20-1000 m2/g. The 3DMM material array can be used for rapid synthesis, screening and manufacture of catalysts and nanosensors.
    Type: Application
    Filed: February 17, 2018
    Publication date: November 7, 2019
    Inventors: Xiaonao Liu, Yifeng Shi