Abstract: This disclosure provides methods, systems, compositions, and kits for the multiplexed detection of a plurality of analytes in a sample. In some examples, this disclosure provides methods, systems, compositions, and kits wherein multiple analytes may be detected in a single sample volume by acquiring a cumulative measurement or measurements of at least one quantifiable component of a signal. In some cases, additional components of a signal, or additional signals (or components thereof) are also quantified. Each signal or component of a signal may be used to construct a coding scheme which can then be used to determine the presence or absence of any analyte.

Abstract: In some implementations, the device may include a plurality of ultrasound sensors configured to capture tomographical information of a physiological structure. In addition, the device may include an ultrasound coupling medium on each of the plurality of ultrasound sensors. The device may include a processing device configured to: apply beamforming techniques to the ultrasound sensors; capture, using the plurality of ultrasound sensors, bodily data of overlapping volumes of the physiological structure; process the bodily data to generate a vessel location model; and locate a blood vessel from the generated vessel location model.

Abstract: The present disclosure provides methods and compositions for the multiplexed detection of multiple analytes from a sample. Analytes may be nucleic acid analytes. Detection of analytes may comprise contacting one or more sample subsets with hybridization probes, thereby generating one or more cumulative signal measurements capable of detecting the presence of absence of a plurality of analytes.

Abstract: This disclosure provides methods, systems, compositions, and kits for the multiplexed detection of a plurality of analytes in a sample. In some examples, this disclosure provides methods, systems, compositions, and kits wherein multiple analytes may be detected in a single sample volume by acquiring a cumulative measurement or measurements of at least one quantifiable component of a signal. In some cases, additional components of a signal, or additional signals (or components thereof) are also quantified. Each signal or component of a signal may be used to construct a coding scheme which can then be used to determine the presence or absence of any analyte.

Abstract: An ultrasound measurement device includes: a processing device and multiple ultrasound sensors that capture tomographic information of a physiological structure. The ultrasound sensors include a first ultrasound sensor including a first transducer having a first frequency response with a first resonant frequency, and a second ultrasound sensor including a second transducer having a second frequency response with a second resonant frequency different from the first resonant frequency. The first frequency response partially overlaps with the second frequency response.

Abstract: A measurement device includes: a processing device and multiple sensors that capture tomographic information of a physiological structure. The sensors include a first sensor including a first transducer having a first frequency response with a first resonant frequency, and a second sensor including a second transducer having a second frequency response with a second resonant frequency different from the first resonant frequency. The first frequency response partially overlaps with the second frequency response. The second transducer transmits a signal that is reflected by the physiological structure to create a reflected signal, the first transducer generates a first received signal from the reflected signal, the second transducer generates a second received signal from the reflected signal, and the processing device normalizes the first received signal with the second received signal or the second received signal with the first received signal.

Abstract: Some implementations of the disclosure describe a blood pressure measurement apparatus and method that enable continuous, non-invasive blood pressure measurement using sound and ultrasound transducers. In one implementation, a blood pressure measurement device includes: a first transducer configured to emit multiple soundwaves having multiple frequencies, the soundwaves configured to cause a blood vessel of a subject to vibrate; a second transducer configured to capture one or more ultrasound images of the blood vessel; and a processing device configured to: determine, based on the one or more ultrasound images, a wall thickness, a radius, and a resonant frequency of the blood vessel; and calculate, based on the wall thickness, the radius, and the resonant frequency, a blood pressure of the subject.

Abstract: A method of monitoring for changes in a health condition using a non-invasive blood pressure measuring device includes obtaining an acoustic signal from a blood vessel using an audio transducer, converting the acoustic signal to a blood pressure measurement, sampling the pressure measurement over a sample frequency, determining average pressure from the sampled pressure measurement over a target time period, monitoring the average pressure for deviation from a threshold pressure range, and generating an alert signal from the blood pressure measuring device if a deviation from the threshold pressure range is detected.

Abstract: Methods, systems, compositions and kits for using a multiplexed assay on a sample that is obtained from a subject are disclosed. The methods, systems, compositions and kits may comprise obtaining a sample from a subject that is in a location distal from where the assay is performed. The subject may obtain the sample without the presence of another individual. The methods, systems, compositions and kits may allow an assay to be run without addition of a reagent after the sample is received from the subject and prior to running an assay.

Abstract: This disclosure provides methods, systems, compositions, and kits for the multiplexed detection of a plurality of analytes in a sample. In some examples, this disclosure provides methods, systems, compositions, and kits wherein multiple analytes may be detected in a single sample volume by acquiring a cumulative measurement or measurements of at least one quantifiable component of a signal. In some cases, additional components of a signal, or additional signals (or components thereof) are also quantified. Each signal or component of a signal may be used to construct a coding scheme which can then be used to determine the presence or absence of any analyte.

Abstract: An enhanced stethoscope device and method for operating the enhanced stethoscope are provided. The enhanced stethoscope device generally operates by providing stethoscope sensors, ultrasonic sensors, and other sensors to obtain a series of measurements about a subject. The series of measurements may be correlated, such as by machine learning, to extract clinically relevant information. Also described are systems and methods for ultrasonic beamsteering by interference of an audio signal with an ultrasonic signal.

Abstract: FRET-based analytes detection and related methods and systems are described where a pair of FRET labeled primers and/or oligonucleotides are used that are specific for target sequences located at a distance up to four time the Forster distance of the FRET chromophores presented on the FRET labeled primers and/or oligonucleotides one with respect to the other in one or more polynucleotide analyte; in particular the pair of FRET labeled primers and/or oligonucleotides is combined with a sample and subjected to one or more polynucleotide amplification reactions before measuring FRET signals from at least one FRET chromophore.

Abstract: A non-transitory computer-readable storage medium storing executable instructions to cause a system to detect a genetic variation in a polynucleotide analyte in a sample. A fluorophore is attached to a first primer, a quencher is attached to a second primer, and the first primer and the second primer are specific for the polynucleotide analyte. The primers are configured to amplify the polynucleotide analyte having the genetic variation and a corresponding polynucleotide analyte lacking the generic variation. There is a detectable difference between a measured change in signal generated by the fluorophore and quencher, when using the first and second primers to amplify the polynucleotide analyte with the genetic variation, and a change in signal generated by the fluorophore and quencher, when using the first and second primers to amplify the corresponding polynucleotide analyte lacking the genetic variation.

Abstract: Embodiments provide a blood pressure measuring device that: (a) transmits, with an acoustic transducer, acoustic energy at a first frequency towards a blood vessel; (b) first measures an electrical property of the acoustic transducer; (c) transmits, with the acoustic transducer, acoustic energy at a second frequency towards the blood vessel; (d) second measures the electrical property of the acoustic transducer; (e) determines a change in the electrical property of the acoustic transducer between the first measuring and the second measuring, the determined change corresponding to a change in reflected acoustic energy from the blood vessel; (f) determines a resonant frequency of vibration of a wall of the blood vessel as a function of the determined change in the electrical property of the acoustic transducer; and (g) generates a blood pressure measurement as a function of the determined resonant frequency of vibration of the wall of the blood vessel.

Abstract: Some implementations of the disclosure describe a blood pressure measurement apparatus and method that enable continuous, non-invasive blood pressure measurement using sound and ultrasound transducers. In one implementation, a blood pressure measurement device includes: a first transducer configured to emit multiple soundwaves having multiple frequencies, the soundwaves configured to cause a blood vessel of a subject to vibrate; a second transducer configured to capture one or more ultrasound images of the blood vessel; and a processing device configured to: determine, based on the one or more ultrasound images, a wall thickness, a radius, and a resonant frequency of the blood vessel; and calculate, based on the wall thickness, the radius, and the resonant frequency, a blood pressure of the subject.

Abstract: This disclosure provides methods, systems, compositions, and kits for the multiplexed detection of a plurality of analytes in a sample. In some examples, this disclosure provides methods, systems, compositions, and kits wherein multiple analytes may be detected in a single sample volume by acquiring a cumulative measurement or measurements of at least one quantifiable component of a signal. In some cases, additional components of a signal, or additional signals (or components thereof) are also quantified. Each signal or component of a signal may be used to construct a coding scheme which can then be used to determine the presence or absence of any analyte.

Abstract: A non-transitory computer-readable storage medium storing executable instructions to cause a system to detect a genetic variation in a polynucleotide analyte in a sample. A fluorophore is attached to a first primer, a quencher is attached to a second primer, and the first primer and the second primer are specific for the polynucleotide analyte. The primers are configured to amplify the polynucleotide analyte having the genetic variation and a corresponding polynucleotide analyte lacking the generic variation. There is a detectable difference between a measured change in signal generated by the fluorophore and quencher, when using the first and second primers to amplify the polynucleotide analyte with the genetic variation, and a change in signal generated by the fluorophore and quencher, when using the first and second primers to amplify the corresponding polynucleotide analyte lacking the genetic variation.

Abstract: This disclosure provides methods, systems, compositions, and kits for the multiplexed detection of a plurality of analytes in a sample. In some examples, this disclosure provides methods, systems, compositions, and kits wherein multiple analytes may be detected in a single sample volume by acquiring a cumulative measurement or measurements of at least one quantifiable component of a signal. In some cases, additional components of a signal, or additional signals (or components thereof) are also quantified. Each signal or component of a signal may be used to construct a coding scheme which can then be used to determine the presence or absence of any analyte.

Abstract: This disclosure provides methods, systems, compositions, and kits for the multiplexed detection of a plurality of analytes in a sample. In some examples, this disclosure provides methods, systems, compositions, and kits wherein multiple analytes may be detected in a single sample volume by acquiring a cumulative measurement or measurements of at least one quantifiable component of a signal. In some cases, additional components of a signal, or additional signals (or components thereof) are also quantified. Each signal or component of a signal may be used to construct a coding scheme which can then be used to determine the presence or absence of any analyte.

Abstract: This disclosure provides methods, systems, compositions, and kits for the multiplexed detection of a plurality of analytes in a sample. In some examples, this disclosure provides methods, systems, compositions, and kits wherein multiple analytes may be detected in a single sample volume by acquiring a cumulative measurement or measurements of at least one quantifiable component of a signal. In some cases, additional components of a signal, or additional signals (or components thereof) are also quantified. Each signal or component of a signal may be used to construct a coding scheme which can then be used to determine the presence or absence of any analyte.