84results about "Earplugs" patented technology

A hearing protection device to be worn in ear provides communications of ambient sound to an in-ear speaker. Blast noise is detected and measured using either the in-ear speaker as a microphone or using a separate in-ear microphone.

The utility model provides a shading eyeshade which comprises an eyeshade body, an adjusting groove is formed in the outer surface of the eyeshade body, a light hole penetrating through the eyeshade body in the thickness direction is formed in the adjusting groove, and a shading piece used for shading the light hole is arranged in the adjusting groove. The anti-dazzling screen slides in the adjusting groove so that the light inlet amount of the eyeshade body can be adjusted by adjusting the covering rate of the anti-dazzling screen on the light transmitting hole. The adjusting groove is formed in the outer side of the eyeshade connecting band, the light hole penetrating through the wearing part and the shading part is formed in the groove, the shading piece in the adjusting groove slides to cover the area of the light hole so as to achieve stepless adjustment of the light inlet amount, and operation is easy.

An in-ear hearing protection device is provided. The in-ear hearing protection device includes a microphone (410) configured to receive an ambient sound. The in-ear hearing protection device also includes a processor (420) configured to perform an attenuation function on the received ambient sound to provide an attenuated sound. The in-ear hearing protection device also includes a speaker (440) configured to broadcast the attenuated sound. The in-ear hearing protection device also includes a communication module (430) configured to receive a second attenuation function detail from a second in-ear protection device. The processor is configured to calculate a first attenuation function detail and compare the first and second attenuation function details. The performed attenuation function is based on one of the first and second attenuation function details.

According to an embodiment, a method for designing of one or more virtual models of custom ear devices according to configuration requirements from a user input and according to component and / or material information that are associated with components and / or materials of a target product is provided. The method may comprise steps for displaying the designed one or more virtual models of custom ear devices together with meta data that comprise information on the designed one or more custom ear device's compatibility with the configuration requirements and the contained components. According to an embodiment, a computer-readable storage medium or computer program is provided, comprising commands, which when executed by a computer, causes the computer to execute and perform the method for designing and displaying the one or more virtual models of custom ear devices. According to an embodiment, a system for determining one or more virtual models of custom ear devices is further disclosed. The system may further be configured to display the determined one or more virtual models of custom ear devices together with associated meta data on a graphical user interface.

The present invention relates to a method for producing an individual device (10) for improving health conditions in a subject, comprising: scanning the geometry of the outer cars, producing a 3D-model of the individual device (10), and manufacturing the device (10) specifically adapted to the individual geometry of the outer cars of the subject, wherein the device (10) is specifically adapted to the individual geometry of the outer cars of the subject; to apply pressure to the external car in a way that the position of the pinna is changes; to exert pressure on acupressure points around to the external ear; and wherein the device (10) is flexible.

An in-ear hearing protection device is provided. The in-ear hearing protection device includes a microphone (410) configured to receive environmental sound. The in-ear hearing protection device also includes a processor (420) configured to perform an attenuation function on the received environmental sound to provide an attenuated sound. The in-ear hearing protection device also includes a speaker (440) configured to play the attenuated sound. The in-ear hearing protection device also includes a communication module (430) configured to receive second attenuation function details from a second in-ear protection device. The processor is configured to calculate first attenuation function details and compare the first attenuation function details to the second attenuation function details. The attenuation function performed is based on one of the first attenuation function details and the second attenuation function details.

An ear plug includes an elongated body sized and shaped to be partially inserted into an ear canal of a wearer, in which the body includes a negative Poisson's ratio (NPR) polymer foam material having a Poisson's ratio of between 0 and −1. A mouth guard includes an arc-shaped element sized to be received into a mouth of a wearer. The arc-shaped element has an outer wall, an inner wall, and a biting wall connecting the outer wall and the inner wall. The outer wall, the inner wall, and the biting wall define a channel that is sized to receive upper teeth of the wearer or lower teeth of the wearer. The outer wall, the biting wall, or both includes a negative Poisson's ratio (NPR) material having a Poisson's ratio between 0 and −1.

The present invention relates to a polyurethane foam forming system comprising (A) an aqueous polymer dispersion containing a polymer that has a glass transition temperature (Tg) in the range of -5 to 20 ℃, and is prepared from at least one monomer (A1) which contains hydroxyl monomer (A1-1), wherein the hydroxyl monomer (A1-1) is in an amount of 3-30 wt. %, based on the total weight of monomer (A1); wherein the dispersion contains non-ionic surfactant (A2), in an amount of 0.5-9 wt. % based on the total weight of monomers; and wherein the solid content of the aqueous polymer dispersion is 3-80 wt. %, based on the total weight of the aqueous polymer dispersion; (B) an isocyanate composition comprising isocyanate prepolymers; and (C) optionally additives and / or auxiliaries. The invention also relates to polyurethane foam prepared from the said polyurethane foam forming system, and use thereof.

The invention discloses a self-adaptive snore counteracting method and device based on personalized voiceprint training and a sleep earplug special for a patient, belongs to the technical field of intelligent noise reduction and sleep assistance, and aims to solve the problem that sleep of the patient is disturbed by snoring in a ward. The method comprises a personalized training stage and a real-time recognition and counteracting stage, in the training stage, snore audios of snore patients in a ward are collected, acoustic features are extracted, and a personalized voiceprint model is established after principal component analysis and dimensionality reduction; in the real-time stage, target snore is accurately recognized after dimensionality reduction is conducted through the same method, self-adaptive filtering is started to generate anti-phase sound waves to achieve physical counteracting, and meanwhile key sound of a ward is reserved. The earplugs are made of medical-grade materials, are comfortable to wear, easy to clean and stable in endurance, accurately counteract snore without excessive noise reduction hidden dangers, improve the sleep quality of the patients, and are suitable for hospital wards, rehabilitation centers and other scenes.

An enhanced earplug device for noise suppression and entertainment lighting comprises a tubular housing with a removable tip portion for ear canal insertion and a visible light element. The device incorporates a quartz acoustic filter for high-fidelity sound preservation while reducing volume, and a vibration sensor detecting musical beats in the 20-250 Hz range for music-reactive lighting patterns. Bluetooth connectivity enables inter-device synchronization and mobile app control. A tap sensor integrated into the housing exterior provides intuitive gesture-based mode switching between static color, music-reactive, and synchronized operational modes. The system includes RF capabilities for professional venue integration via centralized controllers with DMX / MIDI connectivity, enabling coordinated lighting displays across multiple users in entertainment environments.

The invention discloses an earplug capable of adjusting noise reduction performance. The earplug comprises an earplug body and a plug head used for being plugged into an ear canal. The earplug main body is provided with a mounting cavity and a sound outlet communicated with the mounting cavity, the plug head is mounted at the sound outlet, and a sound inlet gap is formed in the earplug main body and used for enabling sound in the environment to enter the mounting cavity; the earplug main body is provided with a noise reduction adjusting structure, and the noise reduction adjusting structure is used for partially or completely sealing a channel between the mounting cavity and the sound outlet; the noise reduction adjusting structure is provided with at least three gears, and under the first gear, a channel between the mounting cavity and the sound outlet is completely closed; in the second gear, the channel between the mounting cavity and the sound outlet is completely opened or partially opened; under other gears, a channel between the mounting cavity and the sound outlet is partially opened, and the opening degree is between the first gear and the second gear.

The invention belongs to the technical field of sound insulation earmuffs. In order to solve the problems that the examination time is prolonged, the examination efficiency is reduced and the noise reduction effect is poor due to noise reduction of an existing nuclear magnetic resonance noise reduction protection device, the invention provides a medical nuclear magnetic resonance noise reduction protection device which comprises an MRI examination bed, an examination pillow, two noise reduction enhancing earmuffs and an earmuff attaching assembly. And each enhanced noise reduction earmuff is connected with the examination pillow and the ear fitting assembly. The distance between the two noise reduction earmuffs can be automatically adjusted through the earmuff attaching assembly according to the head weights of different patients, manual adjustment of the distance between the noise reduction earmuffs is not needed, the examination efficiency is improved, the noise reduction earmuffs can be further attached to the ears of the patients in the use process, the ear canals can be blocked, and the examination efficiency is improved. Double noise reduction sealing of the ear and the ear canal is achieved, and the noise reduction effect of the whole device is improved.

The invention discloses a self-adaptive springback polyurethane sound insulation earplug with low oppression sense and belongs to the technical field of polyurethane, the polyurethane sound insulation earplug is of a bullet-shaped or bell-shaped structure and comprises a front section and a rear section from the top end to the bottom in the axial direction, the front section is made of self-adaptive springback antibacterial modified polyurethane, and the rear section is made of self-adaptive springback antibacterial modified polyurethane. The rear section is high-density hydrophobic modified polyurethane, and the front section layer adopts a disulfide bond-containing polyether polyol and resveratrol modified system, so that the synergism of antibiosis, antioxidation and self-adaptive resilience is realized; the rear section layer is made of high-density hydrophobic polyurethane, and supporting and stain-resistant functions are provided. The two layers form an integrated structure through in-situ chemical bonding, mild alkali treatment is performed for deprotection after molding, free phenolic hydroxyl groups of resveratrol are recovered, and lasting antibacterial activity is endowed.

The utility model discloses a visual washbasin, which belongs to the technical field of washing and nursing, solves the problem that people cannot soak the face for a long time, and comprises a basin body and a neck protection pad arranged above the front side surface of the basin body, a round hole and a straight notch are formed in the inner wall of the bottom of the basin body in a penetrating manner, and the round hole is communicated with the straight notch. The center of the circular hole and the center of the straight notch are both located on the vertical center face, parallel to the side face where the neck protection pad is located, of the basin body, a breathing assembly is fixed to the circular hole through a bolt, a transparent plate is arranged at the straight notch, and an eye protection visible assembly is fixedly assembled on the inner wall, above the transparent plate, of the basin body. The water temperature regulation and control assembly is fixedly assembled on the outer side of the side face, opposite to the side face where the neck protection pad is located, of the tub body, the water temperature regulation and control assembly is connected with a temperature control panel, and the temperature control panel is fixedly assembled on the outer side of the side face, where the neck protection pad is located, of the tub body; and the earplug and nasal plug storage devices are fixed on the side surfaces of the left side and the right side of the basin body in pairs.

The present disclosure teaches a pair of safety goggles or glasses with elastic earplug attachments. Wherein, the pair of safety goggles or glasses may be a standard pair of safety goggles or glasses, with no modification or customization required. Wherein, the elastic earplug attachment may include an earplug, an elastic band, and a pocket. Wherein, the elastic band and the pocket may be made as one integrated piece and of an elastic material. Wherein, the size and shape of the pocket may match those of an end of temples of the pair of safety goggles or glasses. Wherein, a user may attach the elastic earplug attachment to the end by encasing the end with the pocket, and detach the elastic earplug attachment from the end by uncovering the end from the pocket. Friction between an inner surface of the pocket and the end may hold the earplug attachment in place.

The utility model relates to the technical field of protective appliance especially is concerned on a kind of noise reduction goggles, including mirror frame and temple, the both ends of mirror frame are hinged respectively with temple, mirror frame is equipped with goggles lens, temple is equipped with noise reduction pendant, noise reduction pendant is equipped with adjusting mechanism, cotton thread and noise reduction earplug, one end of cotton thread is connected in adjusting mechanism, its other end is connected in noise reduction earplug, adjusting mechanism is installed in temple, and the length of cotton thread is adjusted, to release or retract noise reduction earplug. From the above, the efficient integration of the goggles and the noise reduction earplug is achieved, providing one-key retracting and automatic indexing function, significantly improving user experience and operation convenience, while ensuring the stability and safety of the equipment, suitable for a variety of high-noise scenes, meeting the user's needs in protecting eyes and hearing, also improving the practicability and aesthetics of the product.

An adjustable earplug is provided, comprising an outer ear portion and a plug to be fitted into the ear canal of the ear, the outer ear portion having at least one acoustic inlet, the plug having a passageway and an acoustic outlet, an acoustic mesh being provided in the passageway, the outer ear portion being adjustable between at least two adjustment positions, the at least two adjustment positions being selected from at least three adjustment positions, wherein: in the first adjustment position, the at least one acoustic inlet is in acoustic communication with the passageway via a first acoustic tube; in the second adjustment position, the at least one acoustic inlet or the second acoustic inlet is in acoustic communication with the passageway via a second acoustic tube and a membrane; and in the third adjustment position, the passageway is at least substantially closed.

The invention relates to hearing protection (10) comprising a body (1) and an insert (2), said hearing protection (10) being configured to be inserted into an individual's ear such that said insert (2) is located in the ear canal and said body (1) is located in the auricle, said body (1) comprising a first material, characterized in that said insert (2) comprises a second material comprising microspheres, said first material and said second material being identical or different. Furthermore, the invention relates to a method for manufacturing such hearing protection (10). Abstract figure: Fig. 1

Aspects of the present disclosure are directed to an in-ear active hearing protection apparatus comprising a housing sized and shaped for placement in a user's ear canal, a microphone to receive sound, a speaker to deliver an output audio signal, and a control circuit operably coupled to both. In some examples, the control circuit operates in an independent mode using a first level-dependent function, and upon detecting a second hearing protection system, switches to a dual hearing protection mode. In the dual mode, the control circuit applies a second level-dependent function different from the first, producing an audio signal at a reduced level while mitigating distortion that can occur when two level-dependent devices are used together.

The invention provides a hearing protection device (10, 10', 10") with an indication unit (40a, 40b) and a detection unit (30, 30', 30") to transmit a first detection signal, to assign a distance value representing a physical distance to an external device (50, 50') based on a second detection signal of the external device (50, 50'), and to control the indication unit (40a, 40b) to provide an indication to a user (100) in case the assigned distance value is equal to or below a predetermined threshold distance value. Thus, a collision can be easily and reliably prevented by providing an indication to the user (100) such that the risk of losing the relevant sound of a person or object moving is overcome. A collision warning system comprising such a hearing protection device (10, 10', 10") and an external device is also provided. Furthermore, a method of retrofitting a hearing protection device (10'") with such a detection unit (30, 30', 30") is provided.

An ear-worn device includes: a microphone that obtains a sound and outputs a first sound signal of the sound obtained; a DSP that outputs a second sound signal based on the first sound signal, when determining that the sound satisfies a predetermined requirement relating to a noise component contained in the sound and the sound contains human voice; a loudspeaker that outputs a reproduced sound based on the second sound signal output; and a housing that contains the microphone, the DSP, and the loudspeaker.

The present invention relates to a polyurethane foam-forming system comprising: (A) an aqueous polymer dispersion comprising a polymer having a glass transition temperature (Tg) in the range of-5 DEG C to 20 DEG C and prepared from at least one monomer (A1) comprising hydroxyl monomers (A1-1), where, based on the total weight of monomers (A1), the hydroxyl monomers (A1-1) comprise hydroxyl monomers (A1-1), and the hydroxyl monomers (A1-1) comprise hydroxyl monomers (A1-1), hydroxyl monomers (A1-1), hydroxyl monomers (A1-1), hydroxyl monomers (A1-1) and hydroxyl monomers (A1-1); the amount of the hydroxyl monomer (A1-1) is 3 wt% to 30 wt%; wherein the dispersion contains a nonionic surfactant (A2) in an amount of 0.5 to 9 wt%, based on the total weight of monomers; and wherein the aqueous polymer dispersion has a solids content of from 3% to 80% by weight, based on the total weight of the aqueous polymer dispersion; (B) an isocyanate composition comprising an isocyanate prepolymer; and (C) optionally additives and / or auxiliaries. The invention also relates to polyurethane foams produced from the polyurethane foam-forming system and to the use thereof.

The invention discloses an anti-tinnitus earplug capable of controlling the noise reduction degree and achieving timed automatic discharging and a using method, and relates to the technical field of earplugs. The earplug comprises an earplug body, and an adjusting noise reduction assembly and a timing discharge assembly are integrated in the earplug body. The adjusting noise reduction assembly comprises an outer layer air bag arranged on the outer wall of the earplug body, a noise reduction adjusting cavity arranged in the earplug body, a plurality of elastic supporting microspheres arranged in the noise reduction adjusting cavity and a silica gel pressing bag used for inflating the outer layer air bag and the noise reduction adjusting cavity. Through the arrangement of the noise reduction adjusting assembly, the silica gel pressing bag can be matched with the three-way valve and the two inflation hole channels, and the expansion fitting degree of the outer-layer air bag and the compactness of capillary bubbles between the elastic supporting microspheres in the noise reduction adjusting cavity are controlled correspondingly; therefore, the earplug body can be tightly attached to the ear canal wall, the sealing and sound insulation effects and the wearing stability are improved, the noise reduction intensity can be continuously adjusted, and the earplug is suitable for different use scenes and requirements of people.

An ear plug includes an elongated body sized and shaped to be partially inserted into an ear canal of a wearer, in which the body includes a negative Poisson's ratio (NPR) polymer foam material having a Poisson's ratio of between 0 and −1. A mouth guard includes an arc-shaped element sized to be received into a mouth of a wearer. The arc-shaped element has an outer wall, an inner wall, and a biting wall connecting the outer wall and the inner wall. The outer wall, the inner wall, and the biting wall define a channel that is sized to receive upper teeth of the wearer or lower teeth of the wearer. The outer wall, the biting wall, or both includes a negative Poisson's ratio (NPR) material having a Poisson's ratio between 0 and −1.

One embodiment of the present invention provides an earplug for blocking noise, the earplug comprising: a bridge band which is worn on a user's head by being brought into close contact so as to surround at least a portion of a side of the user's head, and formed to have predetermined elasticity in an inward direction which is the direction pressing the tragi of both ears of a user; and a pair of tragus covers which are coupled to respective ends of the bridge band and press the tragi of the user in the inward direction so that the tragi block the external auditory canals, thereby blocking the transmission of sound wave energy to the external auditory canals, wherein at least one side of the bridge band further includes an auxiliary elastic part for pressing both ends of the bridge band in the directions facing each other.

The invention provides a bionic ear type separated intelligent acoustic noise-reduction sleep-aiding earplug, which comprises a bionic auricle shell which is provided with a core body groove at a corresponding position near the ear canal of a human body and sequentially comprises a bionic auricle sealing layer, a double-cavity vacuum composite noise-reduction layer and a fitting comfortable layer from outside to inside; the intelligent core body is connected in the core body groove in a pluggable and sealed mode, a main control chip, a power supply unit and a sensing unit are arranged in the intelligent core body, a self-adaptive algorithm module is arranged in the main control chip, and the sensing unit collects human body micro-motion and external sound environment parameters. According to the technical scheme, through a three-layer composite structure of the bionic auricle sealing layer, the double-cavity vacuum composite noise reduction layer and the fitting comfort layer, high-frequency / low-frequency dual noise reduction is achieved, and non-inductive sleep aiding and intelligent noise reduction are achieved in combination with the separated intelligent core body and a self-adaptive algorithm. The high-noise-reduction, high-breathability and high-comfort-degree pillow has high noise reduction, high breathability and high comfort degree, can be widely applied to sleeping, commuting and learning scenes, and has a good market application prospect.

An eartip (60) for an in-ear earpiece, comprising: a body (23) configured to rest in the concha of an ear of a user including an earpiece mating surface; a positioning and retaining structure (20) comprising the body to engage features of the lateral surface of the ear of the user to position the earpiece and to hold the earpiece in place; a conical structure (48) configured to engage the entrance of the ear canal and formed of material that conforms to the entrance to the ear canal to seal the ear canal, wherein the conical structure (48) is configured to contact the entrance to the ear canal but does not contact the inside of the ear canal, wherein the body is joined to the conical structure by a passageway (21)..

A weapon system for a firearm includes a processor, the processor having an associated memory, and an optical reader, the optical reader configured to receive operator-identification information and transmit the operator-identification information to the processor.

This invention discloses a high-density closed-cell polyurethane structure and its application in earplugs or earmuffs, belonging to the field of polymer materials technology. By weight, it comprises the following components: 30-40 parts of polyether polyol I, 10-20 parts of polyether polyol II, 5-15 parts of chain extender, 1-3 parts of organosilicon surfactant, 1-3 parts of hydrophobic silica, 8-15 parts of foaming agent, 19-42 parts of polymethylene polyphenyl polyisocyanate, 8-12 parts of pyridine-amide-terminated diisocyanate, and 6-10 parts of ureidopyrimidinone diisocyanate. Compared with existing technologies, the polyurethane earplugs of this invention have excellent overall performance; the self-healing network and rigid closed-cell foam wall structure work synergistically, exhibiting good repeatability and suitability for large-scale production.