摘要:
A reference transmitter (602) and reference receiver (604) are provided for testing the performance of a semi-implantable hearing aid. In a calibration configuration, an audiometer (606) is used to provide a reference signal via a headphone jack output (608) to the reference transmitter (602). The reference transmitter (602) provides an RF transmit coil output via lead (610) and coil (612) to the reference receiver (604). The reference receiver (604) provides an output signal that is correlated to a microphone signal to a hearing aid analyzer (616). The transmitter (602) and receiver (604) can be separately used to analyze the internal and external portions of a semi-implantable hearing aid using conventional audiometers and hearing aid analyzers.
摘要:
A system for reducing the vibration sensitivity of an implantable microphone without an equal or greater reduction in sound sensitivity. The system reduces non-ambient vibrations by placing at least one compliant member into the path of transmission for tissue-borne vibration, but not into the path for ambient sound-induced vibration. More particularly, a compliant member is interposed along the path between a source of non-ambient vibration and an implanted microphone. In one aspect, a compliant base member is disposed between an implanted microphone and an implant wearer's skull. In another aspect, a microphone is compliantly suspended relative to an implant housing using a support membrane. In either aspect, the compliant member (i.e., base member and/or membrane) and the supported member (i.e., housing and/or microphone) define a supported system having a natural or resonant frequency. This natural frequency may be set to a value to advantageously isolate the microphone against transmitted vibration.
摘要:
A noninvasive method and system are provided for assessing the performance of implanted actuators of semi or fully-implantable hearing aid systems. The invention utilizes an externally positioned measurement device to obtain a test measure of the electrical signal passing through an implanted actuator when driven by a test signal of predetermined characteristics. In one embodiment, the measurement device may comprise a pair of coils for measuring the magnetic field generated by an implanted actuator utilized to simulate the middle ear of a patient. The magnetic field strength is directly related to the amount of current passing through the actuator. In turn, such current is inversely related to the electrical impedance present at the implanted actuator. Such electrical impedance is directly related to the mechanical impedance present at the interface between the implanted actuator and middle ear of a patient. As such, by driving an implanted actuator at one or more predetermined frequencies the resultant magnetic field measures may be utilized to assess whether the implanted actuator is operative and whether a desired interface between the actuator and the middle ear of patient (e.g. the ossicular chain) is present.
摘要:
Endoscopic instruments, such as endoscopes, and devices and methods for cleaning endoscopic instruments are provided. A cleaning device for use with an endoscopic instrument comprises an elongate member configured for advancement through an internal lumen within the endoscopic instrument and a cleaning member removably coupled to a portion of the elongate member. The cleaning element comprises a variable pressure region shaped and configured to increase the hydrodynamic fluid friction force and fluid pressure force of a cleaner or detergent against the wall of the internal lumen of the endoscope to more effectively clean all internal surfaces of an endoscopic instrument, including crevasses, scratches or other irregularities, without further damaging these surfaces.
摘要:
A nested temperature regulation device includes a watertight pouch having a gas valve, a first plurality of reactive spheres and a rupturable fluid bag. The first reactive spheres are configured to create an endothermic reaction or an exothermic reaction for a set period of time when engaged by the fluid. At least one soluble barrier is positioned within the pouch and includes a hollow interior space that contains another plurality of reactive spheres. Each soluble barrier is constructed to dissolve and to permit the fluid from the bag to engage a subsequent plurality of reactive spheres after a predetermined period of time that is equal to the effective reaction time of the plurality of reactive spheres immediately previously engaged by the fluid. One or more of the plurality of reactive spheres includes a coating that delays the fluid from accessing the reactive material of the sphere having the coating.
摘要:
An optical coupler for mounting at a distal end of an optical imaging device includes a visualization section and an attachment section. At least one surface of the visualization section has a roughness that does not interfere with a video capture system of an optical imaging device.
摘要:
The multi-material stent includes a renal portion and a bladder portion with respective, different hardness. A valve is disposed within the stent to guide liquid from the renal portion of the stent to the bladder portion of the stent. The present invention relates towards systems and method for stents. More particularly, the invention relates to a stent designed to increase patient comfort by minimizing irritation and reflux through the use of a stent that incorporates one or more flexible elements, which may involve materials with varying degrees of hardness, and a valve disposed therein.
摘要:
A system and method of providing crowdsourced wait time information for a venue includes receiving wait time information for a venue from first user, receiving a query about the venue from a second user, determining wait time for the venue based at least in part on the wait time information from the first user, and sending the determined wait time for the venue to the second user. The system and method can also include providing a promotional offer to one or more of the first user, the second user, or the venue. The system and method can also include providing wait time for a second venue in response to the query about the first venue.
摘要:
A viscous clutch (30; 30′) includes a stationary journal bracket (32; 32′) defining a mounting shaft (32-1; 32-1′), an output member (34; 34′) rotatably supported on the mounting shaft about an axis (A), an input member (34; 34′) rotatably supported on the mounting shaft about the axis, and a working chamber (50; 50′) defined between the input member and the output member to selectively transmit torque there between when a shear fluid is present. The mounting shaft extends axially through the viscous clutch from a front face (62; 62′) of the viscous clutch to a rear face (56; 56′) of the viscous clutch, with the rear face defining a mounting surface for mounting the viscous clutch at a mounting location. The front and rear faces are located at opposite sides of the viscous clutch and face in opposite directions.
摘要:
A method, apparatus, and computer-readable storage medium for generating a mobile flow record for a mobile flow of a mobile node are provided. A method includes receiving information associated with signaling traffic of the mobile node, receiving information associated with bearer traffic of the mobile node, and generating the mobile flow record by correlating the information associated with signaling traffic of the mobile node and the information associated with bearer traffic of the mobile node. The mobile flow record includes IP layer information associated with the mobile flow and wireless layer information associated with the mobile flow.