Bothell, WA, United States
Bothell, WA, United States
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Methods and apparatus for utilizing multiple sources of physiologic data to enhance measurement robustness and accuracy. In one embodiment, phonocardiography or heart sounds data is used in combination with one or more other techniques (for example, impedance cardiography or ICG waveforms, and/or electrocardiography or ECG waveforms) to provide more accurate and robust physiological and/or hemodynamic assessment of living subjects. In one variant, the aforementioned methods and apparatus are used to improve ICG fiducial point (e.g., B, C and X point) detection and identification accuracy. Moreover, the new ICG fiducial points that may be clinically important may be identified using the disclosed methods and apparatus. In a further aspect, the invention discloses methods and apparatus for utilization of ICG and/or ECG waveform information to improve the identification and characterization of heart sounds (such as e.g., S1, S2, S3, or S4 heart 20 sounds), murmurs, and other such artifacts or phenomena.


The disclosed technology features methods for the manufacture of electrical components such as ultrasound transducers. In particular, the disclosed technology provides methods of creating an ultrasonic transducer by connecting one or more multi-layer printed circuits to an array of ultrasound transducer elements. In one embodiment, the printed circuits have traces in a single layer that are spaced by a distance that is greater than a pitch of the transducer elements to which the multi-layer printed circuit is to be connected. However the traces from all the layers in the multi-layer printed circuit are interleaved to have a pitch that is equal to the pitch of the transducer elements. The disclosed technology also features ultrasound transducers produced by the methods described herein.


Patent
Sonosite | Date: 2017-02-23

A high frequency ultrasound probe includes a substrate having a number of transducer elements on it and a ground plane that is electrically coupled by one or more vias to a conductive frame that supports the substrate. The conductive frame is electrically coupled to a ground plane of a printed circuit having conductors that are coupled to the transducer elements.


Patent
Sonosite | Date: 2017-01-25

The invention features methods for the manufacture of electrical components such as ultrasound transducers. In particular, the invention provides methods of patterning electrodes, e.g., in the connection of an ultrasound transducer to an electrical circuit; methods of depositing metal on surfaces; and methods of making integrated matching layers for an ultrasound transducer. The invention also features ultrasound transducers produced by the methods described herein.


Patent
Sonosite | Date: 2017-04-05

An ultrasonic transducer stack comprising a plurality of stacked layers, the plurality of stacked layers comprising a piezoelectric layer, a first matching layer, and a lens layer comprising polymethylpentene or a thermo set cross linked polystyrene. The first matching layer comprises cyanoacrylate and is configured to be about a 1/4 acoustic wavelength matching layer.


Patent
Sonosite | Date: 2016-09-02

Ultrasound transducer assemblies and associated systems and method are disclosed herein. In one embodiment, an ultrasound transducer assembly includes at least one matching layer overlies a transducer layer. A plurality of kerfs extends at least into the matching layer. In some aspects, the kerfs are at least partially filled with a filler material that includes microballoons and/or microspheres.


Enhanced ultrasound imaging apparatus and associated methods of work flow are disclosed herein. In one embodiment, a method of ultrasound scanning includes receiving a first dataset representing ultrasonic scanning of a target anatomy of a patient in a two-dimensional mode and generating a two-dimensional ultrasound image of the scanned target anatomy based on the received first dataset. The method also includes accepting a definition of at least one of a sagittal plane, a transverse plane, and a coronal plane on the displayed two-dimensional ultrasound image. Thereafter, a second dataset representing ultrasonic scanning of the target anatomy in a three-dimensional mode is received and an ultrasound image at the coronal plane of the target anatomy is generated based on (1) the three-dimensional scanning and (2) the accepted definition of at least one of the sagittal plane, the transverse plane, and the coronal plane.


Patent
Sonosite | Date: 2017-04-19

Systems and methods of transmitting heat away from an ultrasound probe are disclosed within. In one embodiment, a handheld ultrasound probe includes a transducer, electronics configured to drive the transducer, and a housing surrounding the transducer assembly and the electronics. A slot extending from a first side of the housing to a second side of the housing and can allow air to pass adjacent transducer and the electronics. The slot can be sized to inhibit accessibility of an operators finger to an inner surface of slot.


High frequency ultrasound transducers configured for use with high frequency ultrasound diagnostic imaging systems are disclosed herein. In one embodiment, an ultrasound transducer includes a concave lens having an average thickness in a center portion that that is substantially equal to an odd multiple a 1/4- wavelength of the center frequency of the ultrasound transducer.


Patent
Sonosite | Date: 2017-03-01

High frequency ultrasound transducers configured for use with photoacoustics systems are disclosed herein. In one embodiment, an ultrasound transducer stack includes a transducer layer and an at least partially optically reflective lens layer. The lens can include a lens material doped with a plurality of optically reflective particles. In another embodiment, the transducer stack can further include a matching layer comprising a matrix material doped with a plurality of optically reflective particles. In a further embodiment, the transducer stack can include an optically reflective matching layer positioned proximate a front surface of an acoustic lens.

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