公开(公告)号：US20220381766A1

公开(公告)日：2022-12-01

申请号：US17804557

申请日：2022-05-28

Applicant: Entech Instruments Inc.

Inventor： Daniel B. CARDIN

IPC: G01N33/497 ,  G01N31/22 ,  G01N33/00

Abstract: A hybrid gas sampling device can combine the functionality of both whole air and sorbent based samplers. The sampling device can be used for collecting light to very heavy organic compounds, for subsequent thermal desorption into a GC or GCMS for quantitative measurement. The sampling device isolates collected samples of gas phase matrices in a sample vessel, provided with sorbent elements from a removable sample extraction device. The sampling device is operated by drawing a vacuum on the chamber through the sample extraction device after sampling, and then completing the extraction of the heavier organic compounds using a static, diffusive extraction under vacuum to allow optimal deposition of the heavier compounds on the sorbent. The vacuum container is cooled to draw any excess water back into the container, thereby dehydrating attached sorbent element(s) in preparation for thermal desorption into a GC or GCMS, eliminating interferences in the MS analyzer.

公开(公告)号：US20220365068A1

公开(公告)日：2022-11-17

申请号：US17746166

申请日：2022-05-17

Applicant: PAI-R Co., Ltd.

Inventor： Isao YASUDA ,  Hiroshi KUZE

IPC: G01N33/497

Abstract: An alcohol detector includes a detecting section, a display section, a communication section, and a controller. The detecting section performs alcohol concentration detection in exhaled breath blown by a subject. The communication section communicates with a prescribed external device performing image capture of the subject who blows the exhaled breath. The controller causes the detecting section to perform the alcohol concentration detection and transmits a detection result of the alcohol concentration detection to the prescribed external device via the communication section. The controller causes the display section to display an image including identification information indicating the alcohol detector during image capture of the subject in a time from a start of the alcohol concentration detection to transmission of the detection result.

公开(公告)号：US11497414B1

公开(公告)日：2022-11-15

申请号：US16837780

申请日：2020-04-01

Applicant: Invoy Holdings, Inc.

Inventor： Zachary B. Smith ,  Connie Kim ,  Lubna M. Ahmad ,  Ronald J. Schoenbaum

IPC: A61B5/08 ,  G01N33/497 ,  A61B5/097

Abstract: A pump-less breath analysis device regulates the flow of breath past a nanoparticle sensor (or other semiconductor sensor) by dynamically adjusting the state or position of a valve as the user exhales into the device. The valve controls the flow of incoming breath between two flow paths: a venting path through which breath exits the device without passing by the nanoparticle sensor, and a sensing path that includes the nanoparticle sensor. In some embodiments, the valve is controlled by a processor that monitors pressure produced by the user's exhalation force. Based on these real-time pressure measurements, the processor adjusts the valve to maintain the pressure, and thus the flow rate, in the sensing path within a desired range. The processor may also use the pressure measurements to determine whether the characteristics of the user's exhalation are sufficient to generate a valid measurement.

公开(公告)号：US20220357310A1

公开(公告)日：2022-11-10

申请号：US17737056

申请日：2022-05-05

Applicant: Scott Hadley ,  Aaron Hays

Inventor： Scott Hadley ,  Aaron Hays

IPC: G01N33/497

Abstract: Disclosed are implementations of a detection device configured to detect flatulence. In particular, it is envisioned that the detection device will be used to detect patient flatulence after gastrointestinal surgery. In this way, healthcare providers can be certain the GI tract is properly functioning prior to patient discharge. An example detection device comprises: a control unit that includes a visual display; a gas sensor configured to detect at least one volatile organize compound found in flatulence; and a cable extending between the control unit and the gas sensor that is configured to electrically connect the gas sensor to the control unit. The cable is also configured to allow the gas sensor to be positioned near the anus of a patient; the visual display of the control unit is configured to provide a visual indicator when a volatile organize compound found in flatulence is detected by the gas sensor.

公开(公告)号：US11474096B2

公开(公告)日：2022-10-18

申请号：US16641558

申请日：2018-08-14

Applicant: Dräger Safety AG & Co. KGaA

Inventor： Jens Rekow ,  Stefan Morley ,  Stefan Barten ,  Carsten Stemich ,  Michael Richenberger ,  Sebastian Schröter

IPC: G01N33/497 ,  A61B5/097 ,  A61B5/08

Abstract: A breath alcohol measurement device has a sample collector (1) with a sample inlet (2) configured for a contactless introduction of a breath sample. A measurement unit (9) has a sensor (16) that generates a measurement signal based on an alcohol content in the breath sample. A control and evaluation unit (4) determines the alcohol content based on the measurement signal and transmits a result-specific signal to an output unit (5). Some of the breath sample provided into the sample inlet (2) is applied, at least intermittently via a main flow duct (10), to the sensor (16) via a measurement gas duct (21) that is connected via an outlet to the environment (7). Between the sample inlet (2) and the outlet of the main flow duct there is a further outflow opening (6) through which some of the breath sample introduced into the sample inlet exits into the environment.

公开(公告)号：US11467459B2

公开(公告)日：2022-10-11

申请号：US16268094

申请日：2019-02-05

Applicant: Board of Regents, The University of Texas System

Inventor： Pelagia I. Gouma ,  Owen Oladele Abe

IPC: G02F1/1524 ,  G02F1/155 ,  C01G41/02 ,  G01N21/78 ,  G01N33/497

Abstract: An electrochromic device comprising a substrate, a set of electrodes disposed on or within the substrate, and a layer comprising ε-WO3 disposed in electrical communication with the set of electrodes, wherein the layer of ε-WO3 exhibits polarization switching are described. Methods of making and using the electrochromic devices are also described. The electrochromic devices are used for detecting acetone in a fluid. The observed change in color of the ε-WO3 layer can be correlated with a subject's medical condition, such as diabetes.

公开(公告)号：US20220308035A1

公开(公告)日：2022-09-29

申请号：US17832257

申请日：2022-06-03

Applicant: Scott C. Smith

Inventor： Scott C. Smith

IPC: G01N33/18 ,  G01N1/28 ,  G01N1/16 ,  G01N33/497 ,  G01N1/12 ,  G01N1/22 ,  C12Q1/04 ,  C12Q1/02

Abstract: An open-cell foam structure that is used to detect and remove substances from water or air.

公开(公告)号：US20220291197A1

公开(公告)日：2022-09-15

申请号：US17500126

申请日：2021-10-13

Applicant: Brandon Heeger ,  Ajay Lajmi

Inventor： Brandon Heeger ,  Ajay Lajmi

IPC: G01N33/497 ,  C08B37/00 ,  A41D13/11

Abstract: A rapid testing mechanism for respiratory viral pathogens includes a filter material positioned to capture exhaled breath particles from a respiratory tract. A portion of the filter material is impregnated with a pathogen binding adsorptive reagent. When the exhaled breath particles pass through the filter material the following occurs: when the binding adsorptive reagent reacts, a positive test for respiratory viral pathogens is indicated by the filter material; and when pathogen binding adsorptive reagent does not react, a negative test for respiratory viral pathogens is indicated by the filter material.

公开(公告)号：US20220196633A1

公开(公告)日：2022-06-23

申请号：US17605536

申请日：2020-04-20

Applicant: KYOCERA Corporation

Inventor： Shinichi ABE

IPC: G01N33/497 ,  G01N33/00

Abstract: A gas detection system includes a sensor unit that outputs a voltage corresponding to a concentration of a specific gas, a first chamber capable of storing a supplied sample gas, a second chamber located between the first chamber and the sensor unit, and a flow path connectable to an inlet of the second chamber. The second chamber has a smaller area than the first chamber in a cross section perpendicular to a gas flow direction in the first chamber. The sample gas is supplied from the first chamber to the second chamber, and then a purge gas is supplied from the flow path to the second chamber to supply the sample gas to the sensor unit.

公开(公告)号：US11366056B2

公开(公告)日：2022-06-21

申请号：US16589983

申请日：2019-10-01

Applicant: GE Precision Healthcare LLC

Inventor： Mika Harri Juhani Hietala

IPC: G01N21/35 ,  G01N21/31 ,  G01N33/497 ,  A61B5/08 ,  A61B5/097 ,  G02B5/20 ,  G01J3/02 ,  G01J3/42 ,  G01J3/36 ,  G01N21/3504 ,  A61B5/083 ,  G01J3/427 ,  A61N5/06 ,  G01J3/12

Abstract: A gas analyzer for measuring a respiratory gas component includes an emitter that emits two different wavelengths of infrared (IR) radiation in to a measurement chamber containing a respiratory gas, wherein the two different wavelengths include a first IR wavelength and a second IR wavelength. The gas analyzer further includes a first IR detector, a second IR detector, and a beam splitter. The beam splitter is configured to receive the two different wavelengths of radiation emitted by the emitter and to split the two wavelengths of radiation so as to reflect the first IR wavelength to the first IR detector and reflect the second IR wavelength to the second IR detector.