Abstract:
A flip-chip electrical coupling between first and second electrical components (250, 260). The coupling includes a bump (210) and a pad (220). The bump (210) is electrically coupled to the first electrical component (250). The pad (220) is electrically coupled to the second electrical component (260). The pad (220) is electrically coupled to and dimensioned smaller than a corresponding coupling surface (214) of the bump (210). The pad (220) and bump (210) may be electrically coupled together using an ultrasonic stub bump bonding process, conductive epoxy, etc.
Abstract:
A wireless ultrasound probe has a probe case enclosing a transducer array, an acquisition circuit, a transceiver, a power circuit, and a rechargeable battery. Also located inside the case are a temperature sensor and a remaining battery life monitor. In response to the sensing of an excessive temperature condition inside the probe or at the transducer array, or a low battery condition, the probe switches to a low power mode of operation. The low power mode may include energy reduction measures such as reducing r.f. transmit power (acoustic or. communication), reducing digital clock rate, reducing transducer drive voltage, and/or reducing an image scanning parameter such as frame rate, line density, or active aperture size. The probe also includes a probe inactivity sensor which switches the probe to a hibernate or sleep mode upon detection of prolonged probe inactivity.
Abstract:
A wireless ultrasound probe has a probe case enclosing a transducer array stack, a microbeamformer coupled to the transducer array, an acquisition module, an ultra wideband transceiver, a power circuit, and a rechargeable battery with a total weight of 300 grams or less. Preferably the total weight of these components does not exceed 150 grams, and most preferably the total weight of these components does not exceed 130 grams. The transceiver wirelessly transmits echo information signals to an ultrasound system host where the signals may undergo additional ultrasound signal processing such as further beamforming, image processing and display. The battery is preferably a rechargeable battery and the antenna for the transceiver is located at the end of the probe opposite the transducer stack.
Abstract:
A wireless ultrasound probe has a probe case enclosing a transducer array, an acquisition circuit, a transceiver and a battery. The probe also includes a loudspeaker which produces audible sounds during use of the probe. The loudspeaker, which may be a piezoelectric loudspeaker, issues an alert when battery power is low or signal strength of the wireless transmission is poor or nonexistent. The loudspeaker can provide user feedback to the actuation of a button or control on the probe. The loudspeaker can provide haptic feedback during use of the probe, and can be used to produce audio Doppler tones or heart sounds during probe use.
Abstract:
A wireless ultrasound probe has a probe case enclosing a transducer array, an acquisition circuit, a transceiver and a battery. The probe also includes a loudspeaker which produces audible sounds as a function of the range between the wireless probe and a host system. When the probe is within a near field range of the host system, the loudspeaker is silent. But if the probe is moved to an intermediate or a far field range from the host system, the loudspeaker sounds an alert. This audible alert can be used to locate the probe by transmitting a paging signal which, upon reception by the probe, causes the probe to sound its alert. If the probe is moved to an unauthorized location where it is within range of a transmitter or receiver, the reception of a signal by the probe, the transmitter, or receiver will sound an alert signaling the unauthorized presence of the wireless probe.
Abstract:
An ultrasound transducer comprises a piezoelectric element (175), a first and second matching layers (120,130), and a third matching layer (140) comprising low-density polyethylene (LPDE).The third matching layer (140) affording wide bandwidth for an ultrasound matrix probe may extend downwardly to surround the array (S360) and attach to the housing to seal the array (S370).