Patent application number | Description | Published |
20080313883 | Method of Minimizing Inter-Element Signals for Transducers - The present invention provides a method of packaging surface microfabricated transducers such that electrical connections, protection, and relevant environmental exposure are realized prior to their separation into discrete components. The packaging method also isolates elements of array transducers. Post processing of wafers consisting of transducers only on the top few microns of the wafer surface can be used to create a wafer scale packaging solution. By spinning or otherwise depositing polymeric and metallic thin and thick films, and by lithographically defining apertures and patterns on such films, transducers can be fully packaged prior to the final dicing steps that would separate the packaged transducers from each other. In the case of microfabricated ultrasonic transducers, such packaging layers can also enable flexible transducers and eliminate or curtail the acoustic cross-coupling that can occur between array elements. | 12-25-2008 |
20090080292 | Microfabricated acoustic transducer with a multilayer electrode - In a capacitive membrane ultrasound transducer, one or more electrodes include multiple layers of conductive or semiconductive material. The layers may be positioned adjacent an insulator or cavity in an arrangement to reduce electrical degradation. For example, a conductive layer with less work function and less resistivity is spaced from an insulator by a conductive layer with more work function and more resistivity. The different layers of electrode material may provide for less electrical degradation due to the type of material used and relative location. | 03-26-2009 |
20090092306 | Apparatus for Two-Dimensional Transducers used in Three-Dimensional Ultrasonic Imaging - A single chip transducer apparatus that includes on-chip electronic circuitry which, when connected properly to a two-dimensional matrix of ultrasonic transducer elements, provides enough information to an external imaging system to form three-dimensional images of the subject of interest. In a preferred embodiment, the circuitry provides an amplifier for each transducer element, and then conditions the output of the amplifier in several ways. In one embodiment of the invention, the elements' analog voltages are stored in a sample and hold circuit, and time multiplexed into a high speed line driver that sends many elements data down the interconnect to the system's high speed Analog to Digital converters. In another embodiment, the gain of the amplifiers can be controlled in time to provide aperture translation and time based expansion for translating and focusing image slices in the elevation direction. | 04-09-2009 |
20090105586 | Apparatus for Two-Dimensional Transducers used in Three-Dimensional Ultrasonic Imaging - A single chip transducer apparatus that includes on-chip electronic circuitry which, when connected properly to a two-dimensional matrix of ultrasonic transducer elements, provides enough information to an external imaging system to form three-dimensional images of the subject of interest. In a preferred embodiment, the circuitry provides an amplifier for each transducer element, and then conditions the output of the amplifier in several ways. In one embodiment of the invention, the elements' analog voltages are stored in a sample and hold circuit, and time multiplexed into a high speed line driver that sends many elements data down the interconnect to the system's high speed Analog to Digital converters. In another embodiment, the gain of the amplifiers can be controlled in time to provide aperture translation and time based expansion for translating and focusing image slices in the elevation direction. | 04-23-2009 |
20090105590 | Apparatus For Two-Dimensional Transducers Used In Three-Dimensional Ultrasonic Imaging - A single chip transducer apparatus that includes on-chip electronic circuitry which, when connected properly to a two-dimensional matrix of ultrasonic transducer elements, provides enough information to an external imaging system to form three-dimensional images of the subject of interest. In a preferred embodiment, the circuitry provides an amplifier for each transducer element, and then conditions the output of the amplifier in several ways. In one embodiment of the invention, the elements' analog voltages are stored in a sample and hold circuit, and time multiplexed into a high speed line driver that sends many elements data down the interconnect to the system's high speed Analog to Digital converters. In another embodiment, the gain of the amplifiers can be controlled in time to provide aperture translation and time based expansion for translating and focusing image slices in the elevation direction. | 04-23-2009 |
20100322452 | CONTAMINATION RESISTANT PORTS FOR HEARING DEVICES - An in-canal hearing device includes a receiver, battery, and microphone assembly with a housing. The housing has an air and sound opening which is covered with a structure to inhibit the entry of cerumen and moisture. The structure may be in the form of an end cap having passages with walls which are both hydrophobic and oleophobic to prevent the entry of water, cerumen and other liquids. The structure may also include a flexible tube or a rigid perforated shell surrounding the passages that inhibit the deposition of solid cerumen and other debris onto the passages. | 12-23-2010 |
20130125387 | CANAL HEARING DEVICES AND BATTERIES FOR USE WITH SAME - Hearing devices configured to fit within the bony portion of the ear canal and batteries that may be used with same. | 05-23-2013 |
20130129127 | CANAL HEARING DEVICES AND BATTERIES FOR USE WITH SAME - Hearing devices configured to fit within the bony portion of the ear canal and batteries that may be used with same. | 05-23-2013 |
20130129128 | CANAL HEARING DEVICES AND BATTERIES FOR USE WITH SAME - Hearing devices configured to fit within the bony portion of the ear canal and batteries that may be used with same. | 05-23-2013 |
20130130097 | CANAL HEARING DEVICES AND BATTERIES FOR USE WITH SAME - Hearing devices configured to fit within the bony portion of the ear canal and batteries that may be used with same. | 05-23-2013 |
20140254846 | CANAL HEARING DEVICES AND BATTERIES FOR USE WITH SAME - Hearing devices configured to fit within the bony portion of the ear canal and batteries that may be used with same. | 09-11-2014 |
20150045746 | VALVED ENTERAL ADMINISTRATION ASSEMBLY - An enteral administration assembly for administering fluids through an enteral device. The administration assembly comprising an inlet, an outlet, and a valve mechanism between the inlet and outlet. The inlet is configured to interlock with only an enteral device to form a sealed connection allowing the passage of fluid between the enteral device and the inlet. The assembly may include a valve or turbulating mechanism comprising a valve and at least one turbulator adapted to change the direction of fluid flowing through the assembly to prevent clogging and flocculation of administered substances. | 02-12-2015 |