Abstract:
The invention concerns an electrical and mechanical connection between a head worn communication device and an accessory thereto. Mechanical connection means and electrical connection points at the communication device are placed at one and the same surface part, and further connection means and electrical connection points at the accessory are placed at one and the same surface part, such that a sliding action between the two surface parts will cause the respective mechanical connection means to grip each other while the respective electrical connection points gain contact with each other. The invention further concerns a hearing aid with an accessory.
Abstract:
The invention comprises a hearing aid, which has a casing containing a signal receiving part for receiving an audio signal, an audio transducer for providing an audio signal to the user, a signal transmission path between the signal receiving part and the audio transducer, whereby a battery is provided for powering the signal receiving part, the signal path and the audio transducer, and where further means are provided for assessing the function of the hearing aid and for generating an electrical indication signal which indicates the function of the hearing aid and where further means are provided for intermittently generating a power signal in response to the electrical indication signal and where means are provided for converting the power signal into a light signal, such that the light signal is visible from outside the hearing aid.
Abstract:
The invention comprises a microphone with a housing and an active element inside the housing for converting sound energy into electric energy whereby an inlet is provided for directing sound energy from the surroundings to the active element, whereby the inlet comprises a first tube part and a cavity in connection with the first tube part, whereby the cavity is dimensioned to dampen ultrasonic frequencies. The invention further comprises a hearing aid with a microphone such a microphone. Further the invention concerns an inlet structure for a microphone.
Abstract:
A method of current management in a battery powered device, the method comprising the following steps: a- comparing the actual supply voltage from the battery with a fixed reference voltage, b- generating a control signal whenever the supply voltage is below the reference voltage, c- use the control signal to reduce the load current in the battery powered device, whereby the supply voltage from the battery will increase, d- repeat steps a, b and c as long as the supply voltage is below the reference voltage. The invention thus provides a current management system that-when used within a hearing aid- will allow very high load currents and thereby high sound pressure levels to be obtained from the hearing aid. This is achieved without having severe problems with the reduced battery voltage when the battery approaches the end of its lifetime and/or if the air flow within the battery becomes insufficient.
Abstract translation:一种电池供电装置中的电流管理方法,该方法包括以下步骤:a。将来自电池的实际电源电压与固定的参考电压进行比较,b,每当电源电压低于参考电压时产生控制信号, c - 使用控制信号来减少电池供电设备中的负载电流,从而来自电池的电源电压将增加,d - 重复步骤a,b和c,只要电源电压低于参考电压即可。 因此,本发明提供了当在助听器中使用时将允许从助听器获得非常高的负载电流并由此获得高的声压级的电流管理系统。 这是在电池接近其寿命结束时和/或如果电池内的空气流量不足时,电池电压降低的严重问题而实现的。
Abstract:
The invention concerns a method for providing electric power for a hearing aid, whereby a standard rechargeable battery is permanently fastened inside a battery lid or battery drawer of a hearing aid, where the poles of the battery are available for contacting from the outside when the battery lid or drawer is open, and where the hearing aid is inserted into a charging device for charging the battery with the battery drawer or lid in the open position whereby connecting means of the charging device contacts the two poles of the hearing aid battery. The invention also comprises a charging device for charging a hearing aid battery in a hearing aid.
Abstract:
The invention concerns a method for prescribing the initial setting of signal processing parameters in a hearing aid to the needs of a hearing aid user. According to this aspect a first set of data concerning the user's audiological function are gathered and stored in electronic form and a second set of data indicating the level of cognitive function possessed by the user are gathered and stored in electronic form. The two sets of data are used in combination for computing at least one suggested initial setting of the signal processing parameters of the hearing aid.
Abstract:
Method of noise reduction in a hearing aid or a listening device to be used by a hearing impaired person in which the noise reduction is provided primarily in the frequency range wherein the hearing impaired has the smallest hearing loss or the best hearing.
Abstract:
A communication device for mounting on or in the ear, the device comprising a signal path having a microphone, a signal processor and a speaker, where a power source is provided for supplying a DC voltage to the signal path, where the power supply comprises a battery having a closed reservoir for holding methanol or higher alcohol whereby one boundary of the reservoir comprise an electrolyte layer.
Abstract:
An anastomotic instrument (201) and a method for establishing an end-to-side anastomosis. The instrument comprising an anvil assembly (202A, 203, 203A), having stapling recesses (204), a clamping assembly (205B, 205A) adapted to be advanced towards said rear face of said anvil (203), and a stapling assembly (206, 206A), to be moved towards said anvil (203). The main novel features are that all three assemblies can be split along a common dividing surface, and that during the operation, the separable parts of the assemblies are held together by a common elastic rubber sheath (410), to ensure a correct sequence of relative movement when the three assemblies are pressed together by a manual implement having jaws (202C, 206C). After the anastomosis has been established, the rubber sheath (410) may be cut open to enable the separable parts to be separated from each other.
Abstract:
An end-to-side anastomosis between a first vessel (27) and a second vessel (51) is carried out using an anastomosis instrument comprising a tube (20) in which the first vessel (27) is inserted and everted at the end of the tube (20) to form a collar (28), a springy anastomotic fitting (30) with outwardly directed spikes (32) having previously been placed under elastic bending in a circumferential recess (22). The tube (20) is inserted in a previously made incision in the second vessel (51), a guide member (35) ensuring that the wall region (53) around the incision contacts the everted collar (28). Then, an ejector (23) is operated to liberate the fitting (30) from the recess (22), releasing the fitting to expand quickly, so the spikes (32) penetrate the collar (28) and the wall region (53). Finally, the tube (20) and the ejector (23) are removed, and so is the guide member (35) having previously been made to collapse in a manner not shown to allow it to be removed through the first vessel (27).