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Cochlear implant magnet and device

A technology of cochlear implants and magnets, applied in the field of medical devices, can solve problems such as auditory hallucinations, achieve the effects of improving reliability, avoiding multiple injuries and damages, and aggravating pain

Pending Publication Date: 2017-11-03
ZHEJIANG NUROTRON BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Implant magnets can also cause imaging artifacts in MRI images, as well as auditory hallucinations due to the interaction of the MRI's external magnetic field with the implant

Method used

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  • Cochlear implant magnet and device
  • Cochlear implant magnet and device
  • Cochlear implant magnet and device

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Experimental program
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Embodiment Construction

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] see Figure 1-5 , a cochlear implant magnet, including an inner magnet 3 and an outer magnet 4, wherein the inner magnet 3 includes an inner magnet upper cover 3-1, an inner magnetic bead array 3-2, and an inner magnetic bead holder 3 arranged from top to bottom -3 and the lower cover of the inner magnet 3-4, the inner magnetic bead array 3-2 includes several inner magnetic beads with NS poles, the inner magnetic beads are spherical, placed in the inner magnetic bead holder 3-3, and the inner magnetic beads The bead array 3-2 and the inner magnetic bead holder 3-3 are in the box-shaped space formed by the upper cover 3-1 of the inner magnet and the lower cover 3-4 of the inner magnet, and there is no redundant space inside, the inner magnetic bead array 3 -2 is kept in the inner magnetic bead holder 3-3;

[0020] The outer magnet 4...

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PUM

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Abstract

The invention discloses a cochlear implant magnet and a device. The cochlear implant magnet comprises an inner magnet and an outer magnet, wherein the inner magnet comprises an inner magnet upper cover, an inner magnetic bead array, an inner magnetic bead holder and an inner magnet lower cover arranged from top to bottom; the inner magnetic bead array comprises a plurality of inner magnetic beads with N and S poles; the inner magnetic bead is ball-shaped and is arranged in the inner magnetic bead holder; the inner magnetic bead array and the inner magnetic bead holder are in box-shaped space formed when the inner magnet upper cover and the inner magnet lower cover are covered, the inner part has no extra space, and the inner magnetic bead array is held in the inner magnetic bead holder. The magnet can rotate flexibly on the magnetic bead holder with a self-lubrication function according to changes of the direction of the outer magnetic field, the N pole and the S pole of the implant magnet can be switched freely in the space direction, and the cochlear implant does not need to be taken out in the case of inspection in a strong magnetic field such as MRI.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a cochlear implant magnet and a device. Background technique [0002] A typical cochlear implant system includes an external machine containing a transmitting coil and an external magnet, and an implant. The external magnet has a traditional coin shape and a north and south magnetic dipole that is perpendicular to the patient's skin to generate external magnetic field lines. A corresponding receiver assembly implant is implanted under the patient's skin, with receiver coils and internal magnets. The internal magnet also has a coin shape and a north and south magnetic dipole that is perpendicular to the patient's skin to generate internal magnetic field lines. The inner and outer magnets are attracted to each other, so that the extracorporeal machine and the implant are fixedly connected. [0003] A problem arises when a patient undergoes a Magnetic Resonance Imaging (MRI) examin...

Claims

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Application Information

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IPC IPC(8): A61N1/36A61N1/375
CPCA61N1/375
Inventor 谭治平孙晓安许时昂祁姝琪
Owner ZHEJIANG NUROTRON BIOTECH
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