Artificial cochlear implant

Abstract

The invention discloses an artificial cochlea implant. The artificial cochlea implant comprises an implant electrode, a decoder, a receiving coil, a coil elastic sheet, an implanted magnet, and a packaging silica gel for the implant electrode, the decoder, the receiving coil, the coil elastic sheet and the implanted magnet, wherein the implanted electrode, the decoder and the receiving coil are connected in sequence; the receiving coil is provided with a leading-out wire which is electrically connected with the decoder; the coil elastic sheet is fixedly arranged at the inner side of the receiving coil; the implanted magnet is fixedly arranged at the inner side of the coil elastic sheet; and the packaging silica gel wraps all the other components except the electrode stimulation end of theimplanted electrode. The artificial cochlea implant provided by the invention, through arrangement of the coil elastic sheet, the implanted magnet is stably and fixedly arranged at the inner side of the receiving coil, and displacement is avoided, so the receiving coil and an in-vitro coil have good positioning accuracy; meanwhile, the structural strength of the area of the receiving coil is improved, and good impact resistance is achieved.

Description

technical field [0001] The invention relates to a cochlear implant, in particular to a cochlear implant. Background technique [0002] A cochlear implant consists of two parts: an implant in the body and a sound processor outside the body. The sound processor outside the body collects the sound signal through the microphone, converts it into an electrical signal, and then transmits the signal to the receiving coil of the implant in the body by the transmitting coil, and the receiving coil transmits the received signal to the decoder part of the implant. It is decoded and converted into a corresponding electrical pulse signal, and the ganglion cells in the cochlea are stimulated by implanting electrodes to excite the auditory nerve and transmit sound information to the brain to produce hearing. [0003] The signal transmission between the external sound processor and the internal implant is completed through electromagnetic induction, and the two are separated by the skin wi...

AI Technical Summary

Problems solved by technology

If the magnetic core is broken, it will not be able to locate the magnetic poles with the external device, and the cochlear implant will not work properly

The second method is to arrange a certain number of cylindrical magnetic cores in an array in a thin-walled metal shell, and the magnetic cores are magnetized radially. The disadvantage of this layout is that the center positioning function is poor

[0006] In addition to the biological safety and mechanical strength requirements, implanted magnets also need good fixation measures in the human body. If the implanted magnets are displaced in the human body, firstly, it will cause physiological damage to the human body itself, and secondly, it will cause internal and external devices to be ineffective. positioning so that the cochlear implant does not function properly

[0007] During the use of the cochlear implant, the transmitting coil outside the body needs to be removed frequently. The current cochlear implant magnet is only encapsulated in silica gel, and the implanted magnet has not been effectively fixed. During the removal process of the transmitting coil, due to the direction , different angles, traditional pie The implanted magnet will be subject to certain torsional force. In severe cases, the implanted magnet may produce a slight displacement, which will involve the human muscle tissue and make the patient feel uncomfortable.

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