Otonexus Medical Technologies, Inc.

Other

Daniel Kreindler

Mark A Moehring

George A Gates

Jay A Chesavage

Rahul Singh

Dar Bahatt

Charlie Corredor

Caitlin E Cameron

Chad Jason MacDonald

Marc Fine

Chad Jason Macdonald

An ultrasound signal processor uses an excitation generator to cause displacement of a tympanic membrane while a series of ultrasound pulses are applied to the tympanic membrane. Phase differences between a transmitted signal and received signal are examined to determine the movement of the tympanic membrane in response to the applied excitation. An examination of the phase response of the tympanic membrane provides a determination as to whether the fluid type behind the tympanic membrane is one of: no fluid, serum fluid, or purulent fluid.

Apparatus and method for characterization of acute otitis media

A device for measuring reflected ultrasound and optical signals may include: an optical source; an optical assembly comprising at least one lens, configured to focus reflected optical illumination from a target onto a detector; and an ultrasound transducer aligned to transmit and receive ultrasound radiation co-axially with the reflected optical illumination and wherein the ultrasound transducer at least partially obstructs a path of the reflected optical illumination. An obstruction may be distant from a focal spot of the optical assembly. The device for measuring reflected ultrasound and optical signals may be particularly useful for characterizing fluid behind an ear drum to diagnose otitis media.

Methods and devices for membrane characterization with ultrasound and optical illumination

An ultrasound transducer may include: a plurality of capacitive ultrasound transducer elements; and a base having a largest dimension sized and shaped to be disposed with an external ear canal, wherein the plurality of capacitive ultrasound transducers is mounted on the base. Each capacitive ultrasound transducer element and the ultrasound transducer are specifically constructed to achieve select desired performance characteristics. The ultrasound transducer may have an angular beam spread through a gaseous medium of greater than 15 degrees and an attenuation loss through the gaseous medium of greater than 10 dB measured at a distance 12.5 mm to 25 mm along a primary transmission axis of the ultrasound transducer. The ultrasound transducer may be particularly useful for characterizing fluid behind an ear drum to diagnose otitis media.

Small scale, capacitive ultrasound transducer devices with improved directionality and methods for their use

Small-scale capacitive ultrasound transducer devices and methods

An otoscope uses differential reflected response of optical energy at an absorption range and an adjacent wavelength range to determine the presence of water (where the wavelengths are water absorption wavelength and adjacent non-absorption excitation wavelengths). In another example of the invention, the otoscope utilizes OCT in combination with absorption and non-absorption range for bacteria and water.

Infrared otoscope for characterization of effusion

An apparatus for the detection of compartment syndrome (CS) provides an ultrasound transducer which is operative to excite the ultrasound transducer with a transmit waveform having a center frequency. The ultrasound beam traverses through the compartments of interest, and reflections of signal through Rayleigh scattering are received, amplified, and mixed with a transmit clock to form a baseband quadrature signal, or alternatively, are sampled as RF. Reflections from the compartment volume front and rear fascia interfaces are examined for phase shift, after which an elasticity metric is generated indicating the likelihood of CS in the effected tissues.

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Foster City, CA, United States of America

Daniel Kreindler