摘要:
The present application relates to vented earmolds for hearing assistance devices. Some vented earmolds include a first vent and a second vent to provide acoustic benefits to the user. Such benefits include the reduction of the occlusion effect and reduction of high frequency acoustic feedback. Various embodiments provide wireless and wired designs.
摘要:
Die Erfindung gibt ein Faceplate (1) eines Hörgerätegehäuses (2) mit mindestens einer in eine Öffnung (12) des Faceplates einbaubaren Komponente (3) und ein dazugehöriges Verfahren an. Das Faceplate (1) wird aus einem ersten Material gebildet. Beim Unterschreiten eines vorgebbaren Abstands (6) zwischen Auflagefläche (4) der Komponente (3) in der Öffnung (12) und der der Außenseite des Faceplates (1) abgewandten Oberfläche (5) wird ein zweites Material (7) unterhalb der Auflagefläche (4) auf der Oberfläche (5) des Faceplates (1) derart angebracht, dass der vorgebbare Abstand (6) herstellbar ist. Dadurch ist auch bei eingebauten Komponenten (3), beispielsweise Lautstärkeregler oder Programmwahlschalter, die mechanische Stabilität des Faceplates (1) gewährleistet.
摘要:
In a method for automating design of a locking mechanism for a hearing instrument, a computerized 3D file of an ear impression shell surface is provided based on a 3D scan of a 3D ear impression of a patient's ear. The ear impression shell surface includes a locking surface comprising at least one of a helix or canal concha portion of the patient's ear. A 3D file is provided of a hearing aid shell. With a computer, the hearing aid shell is placed in a desired location in the ear impression shell surface where the hearing aid shell is to be locked in position. With the computer, a volume surface as a 3D file is created representing the locking mechanism by utilizing a profile of the ear impression shell surface to be used as the locking surface. The volume surface runs from the ear impression shell surface and along the profile of the locking surface.
摘要:
In a method to create a hearing aid housing shell and a negative cast for a hearing aid to be fitted to a patient's ear canal, a 3D jet printer apparatus is provided able to build a 3D part by injecting both the soft material and a hard material with the soft material serving as a support for the hard material. The 3D file is input to the 3D jet printer apparatus to build the hearing aid shell with the hard material and the combined negative cast with the soft material. The negative cast is used to check a quality of the hearing aid shell and to add external features to the shell by fitting the shell into the negative cast.
摘要:
Systems for manufacturing oral-based hearing aid appliances utilizing various manufacturing methods and apparatus are described herein. The oral appliance may have an electronic and/or transducer assembly for receiving incoming sounds and transmitting processed sounds via a vibrating transducer element coupled to a tooth or teeth. The oral appliance may be formed or fabricated via three-dimensional digital scanning systems or via impression molding to create a housing for the electronics and/or transducer assembly as well as to securely conform the appliance to the user's dentition.
摘要:
Digital models of the application areas of a left-ear and of a right-ear hearing device are established. The models (140r# and 140i#) are displayed on a computer display. The location of the model (SP#) of the sagittal plane of individual's head is estimated with respect to one of the two digital mold models. Then that one digital model (140r#) is digitally mirrored at the digital model of the sagittal plane (SP#) resulting in a mirrored digital model (14CW) • Then the other digital model of the application area (140i#) and the mirrored digital model (140mr#) are brought into best possible covering alignment (14O'i#) . Units to be positioned in predetermined mutual relationship are applied to the models in best possible alignment.
摘要:
This invention describes a practical application of noise reduction in hearing aids. Although listening in noisy conditions is difficult for persons with normal hearing, hearing impaired individuals are at a considerable further disadvantage. Under light noise condition, conventional hearing aids simplify the input signal sufficiently to overcome the hearing loss. For a typical sloping hearing loss where there is a loss in high frequency hearing sensitivity, the amount of boost (or gain) rises with frequency. Most frequently, the loss in sensitivity is only for low-level signals; high level signals are affective minimally or not at all. A compression hearing aid is able to compensate by automatically lowering the gain as the input signal level rises. This compression action is usually compromised under noisy conditions. In general, hearing aids are of lesser benefit under noisy conditions since both noise and speech are boosted together when what is really required is a reduction of the noise relative to the speech. A noise reduction algorithm with the dual purpose of enhancing speech relative to noise and also providing a relatively clean signal for the compression circuitry is described.
摘要:
The present invention provides a method for computer-controlled creation of non-occluding earpieces with tube bore. The non-occluding earpieces are created based on a three-dimensional computer model of at least part of the outer ear and at least part of the auditory canal. The said model is created by a laser scanner, in the ear scanner or by other means. The said three-dimensional computer model is virtually modified to create the non-occluding earpieces and the tube bore. Finally the physical non-occluding earpieces are manufactured using rapid prototyping equipment.
摘要:
The present application relates to vented earmolds for hearing assistance devices. Some vented earmolds include a first vent and a second vent to provide acoustic benefits to the user. Such benefits include the reduction of the occlusion effect and reduction of high frequency acoustic feedback. Various embodiments provide wireless and wired designs.