Artificial cochlea pre-bent electrode array union

Abstract

The invention discloses an artificial cochlea pre-bent electrode array union. The artificial cochlea pre-bent electrode array union comprises colloid silica and an electrode array union which is pre-bent into a cochlea shape, wherein the electrode array union consists of electrode rings and electrode wires; and the electrode array union and the colloid silica are packaged into a whole body. The artificial cochlea pre-bent electrode array union is characterized in that: a water filling cavity which is parallel to the electrode array union is formed on the colloid silica which is back to the electrode array union; one end of the water filling cavity is closed, while the other end is provided with a water filling hole which is in threaded connection; and the electrode array union which is pre-bent into the cochlea shape can be straightened by filling water into the water filling cavity. The artificial cochlea pre-bent electrode array union is simple in structure, and compared with the prior art, the artificial cochlea pre-bent electrode array union brings great convenience to the operation of implanting the artificial cochlea pre-bent electrode array union; and both the reliability and the safety of an implant are greatly improved, so that electrodes get closer to spiral ganglion cells of the cochlea, the language discrimination capacity is improved, and the long-term normal operation of the implanted electrodes in human bodies is ensured.

Description

technical field [0001] The invention relates to an artificial organ and its medical electronic device, in particular to an artificial cochlear pre-bent electrode array. Background technique [0002] The human ear can be divided into three parts: the outer ear, the middle ear and the inner ear. The main function of the outer ear and the middle ear is to conduct the external sound to the inner ear through the tympanic membrane and the three auditory ossicles connected to it. The inner ear is about the size of a soybean, shaped like a snail shell, also known as the cochlea. There are tens of thousands of auditory sensory cells in the cochlea—hair cells, which convert the acoustic energy (mechanical energy) from the middle ear into electrochemical energy to cause the excitation of the auditory nerve, which transmits the sound information to the cerebral cortex in the form of electricity And produce hearing. Deafness caused by inner ear hair cell lesions is sensorineural deafn...

AI Technical Summary

Problems solved by technology

The bending angle and radian of the pre-bent electrode array after mold processing are guaranteed by the mold, but after the pre-bend electrode array is straightened, the time interval between the use of the operation is different, due to the silicone, electrode Due to the stress effect of the wire bundle, after the supporting steel core is pulled out, the angle and radian of the pre-bent electrode returning to the bent state are also slightly different, so that the distance between each electrode and the cochlear modiole is affected, so that the electrode array cannot be connected. achieve the best working condition

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