Bothell, WA, United States
Bothell, WA, United States

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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: 2016-11-16

Matching layers configured for use with ultrasound transducers are disclosed herein. In one embodiment, a transducer stack can include a capacitive micromachined ultrasound transducer (CMUT), an acoustic lens, and a matching layer therebetween. The matching layer can be made from a compliant material (e.g. an elastomer and/or an liquid) and configured for use with CMUTs. The matching layer can include a bottom surface overlying a top surface of the transducer and a top surface underlying a bottom surface of the lens.


Patent
Sonosite | Date: 2016-10-07

The imaging system can comprise a plurality of elongated rails, a scanhead assembly, and a small animal mount assembly. The scanhead assembly is selectively mounted onto a first rail and is constructed and arranged for movement in a linear bi-directional manner along the longitudinal axis of the first rail. The small-animal mount assembly is selectively mounted onto a second rail and is constructed and arranged for movement in a linear bi-directional manner along the longitudinal axis of the second rail. The second rail being mounted relative to the first rail such that the longitudinal axis of the second rail is at an angle to the longitudinal axis of the first rail. The imaging system can also comprise a needle injection assembly that is selectively mounted onto the third rail and is constructed and arranged for movement in a linear bi-directional manner along the longitudinal axis of the third rail. The third rail being mounted relative to the second rail and the first rail such that the longitudinal axis of the third rail is substantially coaxial to the longitudinal axis of the first rail. Alternatively, the needle injection assembly is mounted onto the first rail, such that the second rail is positioned therebetween the needle injection assembly and the scanhead assembly.


A portable ultrasound system having an enhanced user interface is disclosed herein. In one embodiment, a portable ultrasound system can include a hand-held base unit configured to present a graphical user interface that contains a first control area, a second control area, and an active image area. The first control area can have a number of graphical tools that can each be selectively activated by a users finger. The second control area can include a control area having plurality of controls that can be selectively activated by the users thumb to select a tool property of a number of tool properties associated with the selected one of the graphical tools. The active image area can display an ultrasound image, and the selected one of the graphical tools can be overlaid onto the image with the user-selected tool property.


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.


An ultrasound transducer has an array of transducer elements that are electrically coupled to electrical conductors. In one embodiment, the conductors are included in a flex circuit and engage a conductive surface formed on a number of outwardly extending ribs on a frame that holds the ultrasound array. In one embodiment, the flex circuit includes an alignment feature that engages a corresponding registration feature on the frame so that the traces on the flex circuit align with the ribs on the frame.


In one aspect, matching layers for an ultrasonic transducer stack having a matching layer comprising a matrix material loaded with a plurality of micron-sized and nano-sized particles. In another aspect, the matrix material is loaded with a plurality of heavy and light particles. In another aspect, an ultrasound transducer stack comprises a piezoelectric layer and at least one matching layer. In one aspect, the matching layer comprises a composite material comprising a matrix material loaded with a plurality of micron-sized and nano-sized particles. In a further aspect, the composite material can also comprise a matrix material loaded with a plurality of heavy and light particles. In a further aspect, a matching layer can also comprise cyanoacrylate.


Disclosed is a medical device that includes a phased array ultrasound transducer. The transducer includes a number of transducer elements that are electrically coupled to corresponding electrical conductors. In one embodiment, the conductors are included in a flex circuit and engage corresponding transducer elements though a conductive surface formed on outwardly extending ribs of a frame that holds the ultrasound array. In one embodiment, the phased array is forward facing in the medical device and has an element pitch of 0.75 lambda or less and more preferably 0.6 lambda or less. In one embodiment, the transducer is rotatable over an angle of +/90 degrees to provide a 360 degree view of tissue surrounding the distal end of the device.


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: 2017-04-19

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.

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