82results about "Earmuffs" patented technology

The utility model provides a visual ear canal cleaning and nursing instrument. The visual ear canal cleaning and nursing instrument comprises a head-mounted structure and a nursing device, the nursing device comprises a visual assembly and a nursing assembly. The visual assembly comprises a barrel, a camera shooting unit arranged in the barrel and a light supplementing unit used for supplementing light. The camera shooting unit is arranged close to the opening and is used for shooting so as to observe the condition in the cavity; the number of the light supplementing units is multiple, and the multiple light supplementing units are arranged on the camera shooting unit in a surrounding mode. The nursing assembly comprises a cleaning unit used for cleaning the cavity, and the cleaning unit is arranged close to the visual assembly. Compared with the prior art, the visual ear canal cleaning and nursing instrument is worn on the head to liberate the two hands, and other things can be done during nursing; the visual assembly is used for shooting the interior of the cavity, a user can conveniently observe and know the condition in the cavity, and the cleaning unit is used for cleaning the cavity, so that the user can observe the condition in the cavity before and after cleaning and master the nursing result.

The utility model provides a visual ear canal cleaning and nursing instrument. The visual ear canal cleaning and nursing instrument comprises a head-mounted structure and a nursing device, the head-mounted structure comprises a connecting shell; the nursing device comprises a visual assembly, a nursing assembly and a liquid storage assembly, and the visual assembly is connected with one end of the connecting shell and comprises a cylinder, a camera shooting unit and a light supplementing unit; the number of the light supplementing units is multiple, and the multiple light supplementing units are arranged on the camera shooting unit in a surrounding mode. The nursing assembly comprises a cleaning unit used for cleaning the cavity, and the cleaning unit is arranged close to the visual assembly; the liquid storage assembly is arranged at the end, away from the visual assembly, of the connecting shell, the liquid storage assembly communicates with the nursing assembly, and the liquid storage assembly is detachably connected with the nursing assembly. Compared with the prior art, the visual ear canal cleaning and nursing instrument can be worn on the head of a user, cleaning and nursing of ear canals are achieved while the two hands are liberated, and the user can adopt different liquid medicine or cleaning liquid according to needs through detachable connection of the liquid storage assembly.

A communication device (4, 4A) for a hearing protection system (3, 3A) comprising one or more hearing protection devices (2A, 2B). The communication device comprises a processing unit, a memory, and an interface. The interface comprises a first hearing protection device interface (40A) comprising a first connector (40C) for connection of a hearing protection device. The interface (20) comprises a second hearing protection device interface (40B) comprising a second connector (40C) for connection of a hearing protection device. The first connector and the second connector are of the same connector type.

The application relates to the technical field of industrial earmuffs, and provides an industrial noise reduction earmuff with working condition self-adaptive adjustment, which comprises a supporting block arranged on a safety cap shell, an adjusting unit arranged on the outer surface of the supporting block and used for adjusting the sealing effect of the earmuff and the human body, an earmuff shell fixedly connected to the bottom of the adjusting unit, a decibel detector fixedly connected to the outer side of the earmuff shell, a detection ring connected to the decibel detector through an electric wire, sound-absorbing cotton placed in the interlayer of the earmuff shell, and an air inflation air bag fixedly connected to the inner side of the earmuff shell; a first adjusting unit and a second adjusting unit arranged on the inner wall of the earmuff shell; the sound-absorbing cotton can absorb part of the noise from the outside, and the detection ring can detect the size of the external noise so as to drive the adjusting unit, the first adjusting unit and the second adjusting unit to work, and the noise reduction effect is self-adjusted according to the actual working condition.

Disclosed is an annular ear cushion (100, 100') for an earphone (210, 210') configured to be worn at an ear of a user. The ear cushion (100, 100') is configured to abut the head of the user along an annular contact surface (110, 110') of the ear cushion (100, 100') and to abut or face a housing (220, 220') of the earphone (210, 210') along an annular attachment surface (120) of the ear cushion (100, 100') when the user is wearing the earphone (210, 210') in its intended position, thereby reducing the level of sound entering the ear canal of the user from the environment. The ear cushion (100, 100') further comprising an annular exterior surface (130, 130') and an annular interior surface (140) each extending from the contact surface (110, 110') to the attachment surface (120) and facing respectively the environment and the ear canal of the user when the user is wearing the earphone (210, 210') in its intended position. The ear cushion (100, 100') further comprising a foam core (150) having a first acoustic impedance, and a cover (160) having a first portion (162) extending across the exterior surface (130, 130') and a second portion (164) extending across the contact surface (110, 110'). The first portion (162) of the cover (160) has a second acoustic impedance that is greater than the first acoustic impedance, wherein that at least one first subportion (166) of the second portion (164) of the cover (160) has a third acoustic impedance that is smaller than the second acoustic impedance.

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.

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.

This invention provides a head positioning device for neurosurgical testing, belonging to the technical field of neurosurgical medical equipment. It includes a housing, with a first electric slide rail nested at the front end of the housing. A head fixation mechanism is installed at the output end of the first electric slide rail. A second electric slide rail is laterally installed at the front end of the housing. The head fixation mechanism is used to position and fix the patient's head. A noise reduction mechanism is installed at the front end of the housing, positioned below the head fixation mechanism. This noise reduction mechanism is used to fix the ears on both sides of the patient's head and reduce noise to alleviate the patient's anxiety. This invention solves the problems of physical sound insulation and psychological stress by fixing the patient's ears on both sides through the noise reduction mechanism. The bite fixation mechanism allows the patient's mouth to bite down on the bite device and supports the patient's jaw, preventing slight head movement and effectively improving the stability of the test data.

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.

A communication device for a hearing protection apparatus comprising a hearing protection device is disclosed. The communication device comprises a processing unit, a memory, a radio interface, and a hearing protection device interface. The communication device also comprises a modular button assembly comprising a wireless interface. The processing unit of the communication device is configured to obtain a first input from the hearing protection device and / or transmit a first output to the hearing protection device via the hearing protection device interface. The radio interface comprises a radio connector that comprises terminals for wired connection to a radio unit. The processing unit is configured to obtain a second input from the radio unit and / or transmit a second output to the radio unit via the radio interface.

The present disclosure relates to the technical field of over-ear active noise cancellation (ANC) headphones, and provides an ear cup and an over-ear ANC headphone. The ear cup includes a sound-absorbing member and soft rubber. The soft rubber is provided on an outer surface of the sound-absorbing member and has a Shore hardness of 0 A to 95 A. A noise cancellation effect of the ear cup can be effectively improved by placing a layer of soft rubber with the Shore hardness of 0 A to 95 A on the outer surface of the sound-absorbing member.

The invention relates to a device for treating a tinnitus afflicition and / or reducing stress, comprising an upper bracket (1), a lower bracket (2) and a pressure point body (3), wherein the upper and lower brackets are connected to each other by means of a plug-in connection (4).

Earmuffs with a joint are provided to create a biased pressure distribution about a perimeter of the cup. The earmuffs may include a pivot joint. The pressure distribution creates a wedging pressure (e.g., on a top edge) on the cups that hold the earmuffs on the user's head, for example, when the user rotates the headband behind the head. The bias pressure is also used to adjust the seal formed between the pad and the user's head. Adjustments to the moment created by separating the joints from the cup's apex enable a user to selectively adjust the seal according to the user's preference. A cam is added to the headband to change the hoop stress distributed at the joints and further adjust the compressive forces generated to hold the earmuffs against the user's head.

The invention belongs to the technical field of nursing equipment after nasal plastic surgery, and particularly discloses a wearable cold and hot compress device for nasal surgery, which comprises two earmuffs, a bracket and a fixing component, and is characterized in that the two earmuffs are respectively attached to ears on two sides of the head of a patient; the two ends of the support are rotatably connected to the outer circumferential faces of the two earmuffs respectively, the support comprises a hoop piece and two supporting pieces, racks are arranged at the ends, away from the earmuffs, of the supporting pieces, containing cavities are formed in the two ends of the hoop piece respectively, positioning pieces buckled with the racks are arranged on the inner walls of the containing cavities, and the positioning pieces achieve resetting through elastic pieces and press and fix the racks. The racks of the two supporting pieces can stretch out and draw back in the containing cavities in the two ends of the hoop piece respectively. By arranging the sunken groove matched with the nose outline, it is ensured that the two sides of the nose bridge are tightly attached to the side walls of the sunken groove, and all swelling high-incidence areas are covered; the two horizontally symmetrical storage cavities are designed in the application bag, cold and hot media can be stably contained, medium energy is evenly transmitted to an operation area along the sunken grooves, and local cold and hot concentration or missing is avoided.

Earmuffs with a joint are provided to create a biased pressure distribution about a perimeter of the cup. The earmuffs may include a pivot joint. The pressure distribution creates a wedging pressure (e.g., on a top edge) on the cups that hold the earmuffs on the user's head, for example, when the user rotates the headband behind the head. The bias pressure is also used to adjust the seal formed between the pad and the user's head. Adjustments to the moment created by separating the joints from the cup's apex enable a user to selectively adjust the seal according to the user's preference. A cam is added to the headband to change the hoop stress distributed at the joints and further adjust the compressive forces generated to hold the earmuffs against the user's head.

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.

A noise reduction earpad (100), a noise reduction earmuff, and a noise reduction headphone, and the noise reduction earpad (100) includes: an earpad body (110) and an earpad cover (120), the earpad body (110) is made of a porous flexible material or a foam flexible material and being in a ring shape and being connected to the connection surface (201), the earpad body (110) and the connection surface (201) jointly forming a sealed and soundproof space (101) provided with a chamber structure having an opening; the earpad cover (120) includes a cloth cover (121) covering at least an exposed outer surface of the earpad body (110) and made of a cloth material and a sealed and soundproof film (122) attached to a side surface of cloth cover (121) facing the earpad body (110) and made of a soft rubber, a laying area of the sealed and soundproof film (122) is corresponding to an outer surface of the earpad body (110) facing away from the sealed and soundproof space (110). The assembly of the noise reduction earpad is completed only one assembly step is needed, the assembly steps of the noise reduction earpad are reduced, and the assembly efficiency of the noise reduction earpad is improved.

The present disclosure relates to the technical field of over-ear active noise cancellation (ANC) headphones, and provides an ear cup and an over-ear ANC headphone. The ear cup includes a sound-absorbing member and soft rubber. The soft rubber is provided on an outer surface of the sound-absorbing member and has a Shore hardness of 0 A to 95 A. A noise cancellation effect of the ear cup can be effectively improved by placing a layer of soft rubber with the Shore hardness of 0 A to 95 A on the outer surface of the sound-absorbing member.

The invention relates to the technical field of medical supplies, and discloses a multifunctional neonatal noninvasive respirator head cap which comprises a head cover, a multi-specification adaptive interface module, a self-adaptive noise reduction assembly, a constant-temperature adjusting system and a safety locking adjusting mechanism, the head cover is integrally formed by medical elastic breathable fabric, and a fixing ring of an annular structure is fixedly installed on the outer side of the head cover; the fixing ring is used for achieving rapid disassembly, assembly and positioning of the interface module, the self-adaptive noise reduction assemblies are symmetrically arranged on the two sides of the head cover, and the constant-temperature adjusting system is embedded in the head cover and flexibly attached to the head skin of the newborn. Through the rotary clamping structure of the fixing ring, the rotating ring, the limiting piece and the connecting block and the modular design of the multi-specification pipeline connectors, rapid adaptation and disassembly and assembly of different brands of breathing machine pipelines are achieved, the whole set of head cap does not need to be replaced for newborns, and the purchase and inventory cost of hospitals is greatly reduced. Meanwhile, the operation process of medical staff is simplified, and the treatment preparation efficiency is improved.

This invention discloses a headband-style noise-canceling earmuff and its assembly method, comprising a headband and earmuff components rotatably connected to both ends of the headband. Each earmuff component includes at least an earmuff shell, with a mounting groove on the side of the shell. The bottom of the mounting groove has multiple through holes communicating with the interior of the earmuff shell. An acoustic damping component is embedded in the mounting groove, and a positioning post, after being heated and melted, limits the acoustic damping component. A fixing component is also provided in the mounting groove, matching the contour of the mounting groove to fix the acoustic damping component within it. A positioning post is located on the side of the fixing component facing the earmuff shell, and a through hole corresponding to the positioning post is formed at the bottom of the mounting groove. The fixing component and the positioning post work together, with the positioning post's heat-melted deformation providing axial limiting and the fixing component providing frame compression limiting, thereby maintaining the acoustic damping component in a stable position within the mounting groove and ensuring long-term acoustic channel consistency.

A communication device for a hearing protection apparatus comprising a hearing protection device is disclosed. The communication device comprises a processing unit, a memory, a radio interface, and a hearing protection device interface. The communication device also comprises a modular button assembly comprising a wireless interface. The processing unit of the communication device is configured to obtain a first input from the hearing protection device and / or transmit a first output to the hearing protection device via the hearing protection device interface. The radio interface comprises a radio connector that comprises terminals for wired connection to a radio unit. The processing unit is configured to obtain a second input from the radio unit and / or transmit a second output to the radio unit via the radio interface.

An acoustic filter can include a first substrate including a first plurality of holes directed, therethrough, a second substrate including a second plurality of holes directed therethrough, a chamber defined between the first substrate and the second substrate, and a membrane positioned within the chamber. The membrane can have a dimension other than the thickness of the membrane that can be less than a corresponding dimension of the chamber. The acoustic filter can be configured to attenuate a first acoustic wave that passes through the acoustic filter, the first acoustic wave can have a first amplitude above an amplitude threshold. The acoustic filter can be configured to passthrough a second acoustic wave without substantially attenuating the second acoustic wave, the second acoustic wave can have a second amplitude below’ the amplitude threshold.

The invention relates to the technical field of welding, and discloses a welding mask which comprises a light filtering mechanism, the light filtering mechanism comprises a shell fixedly connected to the inner wall of the mask, a filter is fixedly connected to the inner wall of the shell, an eyeshade is fixedly connected to one side of the shell, and an attaching belt is fixedly connected to the end, away from the shell, of the eyeshade. A first elastic arc-shaped rod is fixedly connected to the end, close to the shell, of the attaching belt, a first spring is fixedly connected to the interior of a first elastic arc-shaped plate, the end, away from the attaching belt, of the first elastic arc-shaped plate is fixedly connected with the shell, a first sliding rod is fixedly connected to the inner wall of the shell, and a sliding groove is formed in the bottom of the shell; wherein the number of the sliding grooves is two, the sliding grooves penetrate through the shell, and cleaning assemblies are slidably connected to the interiors of the sliding grooves, so that the attaching belts are attached to the peripheries of the eyes, and the situation that a mirror surface becomes fuzzy due to water mist generated by breathing, and a worker cannot see a welded object clearly is prevented.

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 utility model discloses a head wearing device capable of improving sleep quality, comprising: the lower jaw drag belt, the connecting place of lower jaw drag belt is provided with female and son pastes, female and son pastes are mutually adhered fixed between, both sides of lower jaw drag belt are provided with ear hole and are provided with ear cover at ear hole place, the outside of lower jaw drag belt is provided with velcro. The utility model discloses the connecting place of lower jaw drag belt is provided with female and son pastes, female and son pastes are mutually adhered fixed between, according to the length of lower jaw drag belt of patient need adjustment, to guarantee the comfort degree of patient use, support the lower jaw through the physical mode, make it keep slightly forward or closed state, promote the mouth nose breathing, reduce the risk of snore and airway collapse, both sides of lower jaw drag belt are provided with ear hole and are provided with ear cover at ear hole place, and the ear cover part reduces the outside environment noise, reduces the stimulation of patient's own snore to hearing simultaneously, so that the patient will not be frequently awakened because of own snore.

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.

A hearing protection device has a base (11) configured for connecting to a lateral portion of a protective helmet (1), an ear cup (20) configured for covering an ear of a user, and a support (30) connecting the ear cup (20) to the base (11). The support (30) has a first arm (31) and a second arm (32) each having an upper part connected to the base (11) by at least one connection member (50) and a lower part connected to the ear cup (20). The at least one connection member (50) is elastically deformable to allow relative movement of the upper part of the first arm (31) relative to the upper part of the second arm (32). The hearing protection device is movable between an active position, in which the ear cup (20) is configured to cover the ear of the user, and an inactive position, in which the ear cup (20) is configured to be spaced apart from the ear of the user.

The invention belongs to the technical field of earmuffs, and relates to a multi-layer composite structure protective earmuff, which comprises an outer shell, an inner shell, a sound absorption interlayer, composite sound absorption foam, a mounting ring, a connecting ring and buffer foam, and is characterized in that the outer shell and the inner shell are clamped on one side of the mounting ring, and the inner shell and the outer shell are arranged at an interval; a mounting cavity is formed between the inner shell and the outer shell, the sound absorption interlayer is located in the mounting cavity, and the composite sound absorption foam is connected with the inner wall of the inner shell; the connecting ring is clamped on the other side of the mounting ring, and the buffer foam is connected with the connecting ring; wherein the sound absorption interlayer comprises a baffle and a spiral unit, the spiral unit is connected with the baffle, the spiral unit comprises spiral walls, and a spiral channel is formed between the spiral walls; according to the protective earmuff, multiple layers of structures work cooperatively, high-strength hearing protection can be achieved only through a physical structure, the system stability is high, the safety performance is higher, and the protective earmuff can be suitable for more complex and violent noise environments.