SU925338A1 - Voice generation apparatus - Google Patents

Description

(54) VOTE FORMING DEVICE

The invention relates to medical technology, namely, devices designed to compensate for the lost functions of vocalization and partial rehabilitation of the voice in laryngectomized patients.

A voice forming apparatus is known which contains a controlled main current generator, a power amplifier, a power source and an electrodynamic converter with a membrane system which consists of a rigid membrane made of a non-magnetic material, a coil structurally designed as a striker, soft elastic membrane glued to the striker and tightened on the fiber ring, secured in the recess of the converter case. The rigid membrane, in turn, is located between two elastic pads and is clamped by a ring in a cap that can be moved relative to the body. The magnetic converter system consists of an annular permanent magnet made of a material based on cobalt with rare earth metals. In the middle part of the magnetic system there is a cylinder-shaped guide for the striking membrane system. The design of the device is made of two quick-disconnecting units: a converter and a generator unit with a power source, the converter can be mechanically separated from the generator unit, but it has a permanent electrical wiring connection I.

The converter in this device partially provides for individual adjustment of the output mechanical parameters for better coordination with the medium;

10 due to the possibility of moving the cap with a rigid membrane installed in it relative to the body, but is structurally and technologically difficult to manufacture. In addition, the presence of several moving elements of the membrane system leads to a decrease in the reliability of the design.

The closest to the invention is a voice-forming apparatus, which contains a generator unit, including a pulse generator and a power amplifier, an autonomous power supply unit and an electromagnetic transducer with a membrane system, connected to a generator unit 2.

However, to ensure an economical mode of operation of the known apparatus at the maximum transmitted power to the load, full coordination is necessary.

30 mechanical impedance converters

and environments. Taking into account the significant effect of variation in load parameters, depending on a patient, structural elements were introduced into the transducer that allow individual adjustment of the transducer parameters to a different force holding the apparatus to the patient’s throat, which complicated the design of the apparatus and reduced its reliability.

The purpose of the invention is to simplify the design without degrading the output electromechanical parameters and improving the reliability of its operation.

The goal is achieved by the fact that in a voice-forming apparatus the membrane system is made in the form of an elastic metal membrane to which a disk made of magnetically soft material and a contact element are coaxially and rigidly fixed, the membrane being located on a ring mounted on the body with the possibility of longitudinal movement.

In addition, the generator unit and the autonomous power supply unit are made in the form of detachable units interconnected by mechanical and electrical connectors.

FIG. 1 shows the voice forming apparatus, in the assembled state, FIG. 2 - the same, with the power supply unit disconnected; in fig. 3 - electromagnetic transducer, cross section.

The voice-forming apparatus (Fig. 1) consists of a generator unit 1, an autonomous power supply unit 2 and an electromagnetic converter 3. Moreover, the generating unit and the autonomous power supply unit are made in the form of detachable units interconnected by mechanical and electrical connectors (figure 2).

The generator unit contains a controlled pulse generator 4 with a main current power amplifier, key 5, which switches on, off and changes the frequency of the main current during operation of the device, electromagnetic converter 3, electrical connector 6 for connecting power from an independent rectifier device 7 to the AC network or to connect the power supply unit 2 using the electric cable 8 and directly from the plug 9 embedded in the power supply unit 2, connectors 10 for mechanical connection with block 2.

In block 2, mechanical connectors 11, an electrical plug are mounted for connecting a charger or a generator unit 1.

Electromagnetic converter 3 (Fig. 3) consists of a permanent magnet 12 based on cobalt with rare earth metals, two magnetically conductive cores 13, an elastic membrane 14 and a disk 15 made of magnetically soft materials, two coils 16, a body 17 of a nonmagnetic material, rings 18, the contact element 19. Moreover, the membrane 14, the disk 15 and the contact element 19 form a membrane system that lies freely on the ring 18. The ring 18 and the housing 17 are interconnected by a threaded connection, which allows the membrane system to move relative to converter housing.

The device works as follows. During operation, the device, which is a portable device, can be powered by a battery pack docked.

to the main body, or from it with the help of a cable, and the power supply itself can be in your pocket.

The threaded connection of the ring 18 with the housing 17 allows the membrane system to move relative to the converter housing, which allows to partially compensate for the force of the apparatus pressing to the throat during operation, ensuring individuality of adjustment without

deterioration of the output of the electromechanical parameters of the apparatus and its coordination with the medium.

Simplification of the converter design, the number of components of mobile elements

increases the reliability of the device. The use of only one rigid membrane made of magnetically soft material, which is set in motion by an electromagnetic field without elastic

gaskets and shock absorbers allows the use of the apparatus over a wide range of temperatures. The simplicity of the converter design expands production capabilities, the cost of its manufacture and

repairs, while simultaneously implementing operational individual adjustment of the output parameters of the apparatus for matching with the load. This is achieved by moving the membrane system relative to the transducer housing using a threaded connection.

The use of separate power supply units and a generator in the apparatus allows

carry out a quick change of power sources, and through an electrical connector can be powered from an AC network. This increases the service life of the batteries for

by reducing the number of recharge cycles and extending their life, and is also convenient for use under stationary conditions. The expansion of operating conditions leads to an increase in patient communication.

The device provides a wide range of reproducible frequencies from 70 to 7000 Hz, the ability to smoothly adjust the frequency of the main voice current during a conversation.

Claims (2)

1. A voice-forming apparatus containing a generator unit, including a pulse generator and a power amplifier, an autonomous power supply unit and an electromagnetic transducer with a membrane system, connected to the generating unit, characterized in that, with the aim of simplifying the designs without deterioration. neither the output of the electromechanical parameters and the increase in the reliability of its operation; the membrane system in it is made in the form of an elastic metal membrane, to which a disk of magnetically soft material and a junction is fixed coaxially and rigidly pleasing element, said membrane PAC2 FIG. / laid on a ring mounted on the housing with the possibility of longitudinal movement. 2 An apparatus according to claim 1, wherein the generator unit and the autonomous power supply unit are made in the form of detachable units interconnected by mechanical and electrical connections. ten Sources of information taken into account in the examination: 1. The patent of Germany No. 2515006, cl. A 61 F 1/20, 1976. 2. The patent of Germany No. 2507704, cl. A 61 F 1/20, 1976 (prototype). Zzob