Limiting and fixing assembly of implanting device and artificial auditory brainstem implanting device

Abstract

The invention relates to the field of medical instruments, in particular to a limiting and fixing assembly of an implanting device and an artificial auditory brainstem implanting device. The limitingand fixing assembly of the implanting device comprises an implanting electrode located at an intracranial part, an implanting body located at an extracranial part and a connecting wire between the implanting electrode and the implanting body, wherein one or more positioning pieces are arranged on the implanting body; the connecting wire is sleeved with a limiting piece capable of sliding along theconnecting wire. The limiting piece sequentially comprises an elastic protection inner layer, a fixed outer layer and a fixed net from the connecting wire contact side to the outside of the connecting wire; and the connecting wire is further provided with a limiting mark matched with the limiting piece. The defect that an existing ABI device does not have a fixing mode specially designed for an implanting body is overcome. On the other hand, the safety risk possibly caused by displacement due to infirm fixation of the implanting body is reduced, and the operation effect is favorably improved;and the fixing device is low in cost and easy to operate.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a limiting and fixing component of an implant device and an artificial auditory brainstem implant device. Background technique [0002] Auditory brainstem implant (ABI) bypasses the diseased inner ear and auditory nerve, and implants electrodes on the surface of the brainstem in the lateral recess of the fourth ventricle to directly stimulate the brainstem-cochlear nucleus complex by converting sound signals into electrical signals , so that patients who cannot perform cochlear implants can restore hearing to a certain extent. [0003] The core components of the auditory brainstem implant device mainly include the external machine part and the implanted part. The external unit includes a microphone, a speech processor and a percutaneous transmitter coil; the implanted part includes an implanted body in the extracranial part and implanted electrodes in the intracranial part. [00...

AI Technical Summary

Problems solved by technology

However, it has been found in practical applications that when the meninges or muscle flaps are sutured, the wires may be touched by mistake sometimes, which causes the displacement of the implanted electrodes. Therefore, it is necessary to have a device that can properly fix the electrode wires on the meninges. The device is fixed on the appropriate part of the wire, and the limit net is fixed on the meninges)

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