64 results about "Hearing preservation" patented technology

A method for continuously monitoring noise exposure level of a person via measuring sound level within an ear canal of the person using a sound measurement means linked to a sound level recording device external to the ear canal, wherein the sound measurement means may be shielded from the environment by a hearing protective device, and wherein the cable does not interfere with the ability of the hearing protective device to reduce noise exposure level in the ear canal. Also provided are a system comprising a sound measurement means mounted within an ear canal of the person, an external sound level recording means and a linking cable. Further provided is a system for providing continuous noise exposure monitoring level of a person, and for providing radio communication in a noisy environment, said system comprising the above sound monitoring system linked to a radio signal transmission means, and is switchable between said sound level recording means in a recording mode and said radio signal transmission means in a communication mode.

A hearing protection device and a method of manufacturing thereof is provided. The device includes a sound attenuating portion for being disposed within an ear canal of a user to obstruct the passage of sound and a channel formed through the sound attenuating portion for allowing sound to pass through the sound attenuating portion.

A hearing protection device including a sound attenuating portion configured to be disposed within an ear canal of a user to obstruct a passage of sound, a channel formed through the sound attenuating portion configured to allow sound to pass through the sound attenuating portion when the portion is disposed within the ear canal, a tube disposed in the channel and configured to allow the sound in the channel to pass therethrough, and a filter disposed at one end of the tube and positioned at an interior of the sound attenuating portion, where the filter attenuates some of the sound passing through the tube.

An ear insert for protecting the ear from loud noise can have a stem that is configured to be inserted into an ear canal. One or more attachments can be configured to attach to the stem in a manner that at least partially defines a fit of the ear insert within an ear canal. For example, rubber o-rings can be can be selected according to their size so as to provide a desirable fit of the insert within the ear canal. In this manner, the undesirable leakage of ambient noise into the ear canal is mitigated and hearing protection is enhanced.

A hearing protection device insertable into an earcanal is provided, the device generally including a stem portion, a sound attenuating portion affixed to and extending at least partially over the stem portion, and a volume of space disposed between and delimited by the sound attenuating portion and the stem portion, where at least a part of the sound attenuating portion is collapsible into the volume of space during insertion of the hearing protection device into the earcanal.

A hearing protector comprises a hearing hood (2), a microphone (7), a loudspeaker and an amplifier. The hearing hood (2) has passive noise damping. The microphone (7) is disposed exteriorly on the hearing protector, while the loudspeaker is disposed inside the hood. The amplifier amplifies and transmits the signals from the microphone (7) to the loudspeaker. The noise damping of the hearing hood (2) is broad band. The frequency range of the amplifier corresponds to the frequency range of human speech. The amplification of the amplifier is variable and the greatest amplification is such that the sum total of the sound levels that are caused, on the one hand, by ambient sound passing through the hood (2) and, on the other hand, by sound from the loudspeaker amounts to a maximum, predetermined value.

A combination hearing protector and illumination provider, including a right cup, a left cup, a band, a first light source, and a second light source. The right cup covers the right ear of a user. The left cup covers the left ear of the user. The band connects the right cup to the left cup and is worn over the top of the head of the user. The first light source is operatively connected to one of the right cup and the left cup and faces in a direction that is one of forward of the user and rearward of the user. The second light source is operatively connected to one of the right cup and the left cup and faces in a direction that is the other of forward of the user and rearward of the user. The first light source and the second light source illuminate in opposite directions to each other so as to illuminate forward of the user and rearward of the user.

A hearing protective earplug for insertion into the human ear canal of a user where the human ear canal has sidewalls and a typical curved portion. A soft resilient body has a main body element with a front end for insertion in the human ear canal. An elongated stem has two ends with one end attached to the main body element. The stem extends outward from the main body element and away from the front end. The other end of the stem forms a handle portion of the stem. The stem is sufficiently stiff as to allow manipulation of the main body element into the ear canal of the user. The stem member has a crooked or wavy configuration within the ear canal as it extends outward from the main body to the handle portion of the stem. As the front end of the main body element is inserted into the ear canal, the stem member is rotated during insertion with the handle portion to fit around the typical curved portion in the human ear canal. This seats the main body to acoustically block the ear canal while at the same time spaces the stem member within the typical curved portion of the ear canal to minimize contact with the sidewalls of the ear canal.

A hearing protection device and method of use intended for a human ear. A plug member caps or enters ear canal, and may be shaped to conform to the external auditory meatus. The plug member may be part of a replacement assembly. The device is biased at least in part by a pressure pad to provide some force against the plug member. An optional handle may be provided to assist with temporarily pulling the plug member away from the ear canal or providing adjustment. An optional bow member clips about the pinna. The device may be adapted for use as an ear phone.

A hearing protection device for a human ear. The device has an arm that clips about the pinna. A plug member caps or enters ear canal. The device is biased to provide some force against the plug member so that is stays in position during use. An optional handle may be provided to assist with temporarily pulling the plug member away from the ear canal or providing adjustment. The device may be adapted for use as an ear phone.

A hearing prosthesis including an implantable component including a vibrator portion configured to vibrate in response to a sound signal to evoke a hearing precept and a screw portion configured to removably attach the implantable component to a recipient, wherein the vibratory portion is rigidly adhered to the screw portion.

A hearing protector device is provided including a sound attenuating body and an electronic unit having a microphone, an amplifier, and a loudspeaker, where the electronic unit is selectively activated and, when activated, receives sound from an ambient environment, amplifies a frequency range of the received sound corresponding to a frequency range of human speech, and varies said amplification such that a total level of sound passing through the body and through the electronic unit does not exceed a maximum predetermined sound level.

A hearing protection device is provided including a stem, a protrusion formed on the stem, an articulation point formed on the stem, and a sound attenuating element including a cavity, where the protrusion is disposed in locking engagement within the cavity to releasably attach the stem to the sound attenuating element, and where the stem is configured to at least partially articulate about the articulation point.

An electronic hearing protector includes an ear cup assembly comprising a front exterior microphone that provides a front microphone signal and a rear exterior microphone that provides a rear microphone signal. A processor receives and digitizes the front microphone signal and the rear microphone signal, and provides a front channel signal and a rear channel signal indicative thereof respectively. A filter receives the rear channel signal and has a cut-off frequency value that provides a high-frequency roll-off and a notch at a notch filter frequency value that is less than the cut-off frequency value, where the filter provides a filtered signal. A first signal indicative of the front channel signal and a second signal indicative of the filtered signal are summed, and a signal indicative of the summed signal is provided to a speaker within the ear cup that provides an audio signal within the first ear cup indicative of the summed signal.

The present invention relates to an arrangement for preventing or at least reducing high acoustic pressure levels reaching the tympanic membrane of an ear. In particular, the present invention relates to an arrangement for preventing or at least reducing high acoustic pressure levels reaching the tympanic membrane of an ear by means of placing a protector in an external auditory canal of said ear. The ear protector comprises members for easily engaging or disengaging the ear protector.

The invention concerns a system for forming hearing protectors, an ear cup of such a system and a hearing protector formed from such a system. The system comprises a number of first ear cups (5a) and a number of second ear cups (5b), the first and second ear cups having noise-reducing spaces (11) of different size, and at least one electronic unit (30) with at least one speaker (31). An inner distance (I3) in the noise-reducing space from the speaker (31) in the direction away from the noise-reducing space, and a volume (V3) of a resonance space (15) in the first ear cup are adapted to the inner distance (Ib) and the volume (Vb) of the resonance space (15) in the second ear cup (5b). This is done in such a manner that, when the electronic unit is mounted in each ear cup, sound emitted by the speaker (31) in each ear cup produces substantially the same sound characteristic from the first ear cup (5a) as that from the second ear cup (5b). This allows the same type of electronic unit to be used for ear cups with different degrees of noise attenuation.

The invention relates to a wall internal and external combination heat-preservation system. The wall internal and external combination heat-preservation system is composed of a wall (4), an external hear-preservation layer and an internal heat-preservation layer and is characterized in that the external heat-preservation layer is composed of an anti-crack type cement leveling mortar layer (3), a building heat-preservation putty layer (2) and a building reflecting heat-insulation coating layer (1); and the internal heat-preservation layer is composed of a modified desulfurized gypsum heat-preservation mortar layer, an inner wall putty layer and an inner wall coating layer. The wall internal and external combination heat-preservation system is suitable for energy-saving and heat-preservationengineering for newly-built, rebuilt and expanded residential buildings and public buildings in regions hot in summer and cold in winter, regions hot in summer and warm in winter and parts of cold regions, and can be used for energy-saving transformation of outer walls of existing buildings, and the heat-insulation, heat-preservation and energy-saving effects of the buildings can be achieved completely.

A manually switching dual-mode hearing protector including an active hearing protection device that does not only provide for acoustic attenuation of ambient sound in order to protect hearing of a user in a noisy environment but in addition provides electro-acoustically bypassing of this acoustic attenuation function in order to provide the user with a communication function in order to enable the user to perceive speech signals even when wearing the manually switching dual-mode hearing protector in a noisy environment.

A hearing protection device to be worn at either a primary position or a secondary position, comprising a hearing protection component and a noise measurement component, and an attachment mechanism to securely attach the noise measurement component to the hearing protection component, wherein at the primary position the noise measurement component detects a protected noise exposure and at the secondary position it detects an unprotected exposure, the noise measurement component comprises a microphone, a compartment that encloses the microphone and at least one filter, and the filter reduces resonance of said compartment incident upon said microphone.

A manually, selectively attenuating earplug button, for insertion into a cavity of an earplug of a hearing protection device, is provided which includes a longitudinal central axis; a first opening to receive sound from an ambient environment; a second opening to output at least a portion of said sound; and an audio channel located between said first and second openings, said audio channel having a sound attenuation valve for permitting a wearer to manually adjust the amount of sound admitted to the wear's ear from said ambient environment. Also provided is a hearing protection device, including an earplug made of a soft resilient material having a hardness on the Shore A Durometer hardness scale, and an earplug button which is manually controllable by the wearer and capable of providing a plurality of sound attenuation settings, said earplug button disposed at least partially within a cavity of said earplug.

An improved hearing protection device intended to be inserted into an external auditory meatus of a user, having a housing structure, a passive tuning element, and a passive, nonlinear acoustic filter. The tuning element and the acoustic filter may be supported in series by the housing structure. The tuning element may be or include a diaphragm, a resonator, or both. The housing structure may support a diaphragm of the tuning element at its circumference, and may provide cavities on both sides of the diaphragm. In some embodiments electronic components are included in the hearing protection device to counteract insertion loss provided by the passive element, and restore natural hearing for low to moderate sound pressure levels, Communications devices may also be incorporated into the hearing protection device. The combination of a simple, low cost amplifier circuit, passive tuning element and nonlinear acoustic filter of some embodiments of the present invention achieve a low cost yet sophisticated ability to react to impulse noise without the need for a microprocessor or complex electronics. Furthermore, the configuration reduces power consumption and, therefore, increases service life or decreases battery size / capacity, and results in low electronic self-noise allowing the user to maintain situational awareness,

A method is described for surgical implantation of a cochlear implant system. An intraoperative baseline value stapedial reflex response is determined for a cochlear implant patient. Then while performing a given step in a multi-step surgical process to implant a cochlear implant system in the patient, the stapedial reflex response is monitored, and if the stapedial reflex response changes from the baseline value response more than a safe change threshold value, the given step is stopped.

The invention belongs to the technical field of foods, and discloses an efficient drying device for food materials. The efficient drying device comprises a cabinet body, a liner, a storage frame and a base. One side of the cabinet body is hinged to a sealing door through hinges. A control switch is arranged at the lower end of the sealing door. A display screen is arranged on the right side of the control switch. An alarm is arranged at the upper end of the right side of the cabinet body. The liner is arranged inside the cabinet body. According to the efficient drying device, a hear preservation layer is arranged inside the cabinet body, the heat preservation effect is enhanced, and the situation that heat is leaked outwards, and accordingly, drying is not thorough is prevented; a ventilation channel is arranged between the heat preservation layer and the liner, blades blow hot air towards the ventilation channel, then the hot air enters the liner, and the drying effect is achieved; an oblique plate is arranged at the bottom end of the interior of the liner, and moisture leaked from the materials can be drained to the outside through a water flowing pipe; the heating temperature of a heating pipe is controlled through the control switch; and meanwhile, a temperature sensor transmits a signal to the display screen through a microcontroller.