Sealing structure of artificial cochlea implant and sealing process thereof

Abstract

The invention discloses a sealing structure of an artificial cochlear implant and a packaging technology thereof, the sealing structure comprises: a circuit and a chip, which is characterized in that the circuit is arranged on a circular thin-sheet base plate, a welding ring and a contact point which is electrically connected with the circuit are arranged on the base plate, a connecting ring is annular and fixedly connected with the base plate; the chip is welded on the circuit; an upper end cover and a lower end cover are arranged outside the base plate, the upper end cover, the lower end cover and the welding ring are fixedly connected to form a sealing outer shell; the packaging technology specifically comprises that: the circuit, the welding ring and the base plate are sintered to a whole body by ceramics; the welding chip uses a biological coating layer to carry out the first packaging; the upper end cover and the lower end cover are produced to carry out the second packaging of the implant; and a biological silicon rubber is used for carrying out the third packaging of the upper end cover and the lower end cover. The sealing structure has simple structure, compared with the prior art, the reliability and the safety of the implant can be greatly improved, which can have great strength and toughness, prevent the collision and the seepage and ensure long-term normal work of the implant circuit in the human body.

Description

technical field [0001] The invention relates to an artificial organ and its medical electronic device, in particular to a sealing structure of an artificial cochlear implant and its packaging process. 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 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 due to inner ear lesions is called sensorineural deafness...

AI Technical Summary

Problems solved by technology

However, water in nature is not a single water molecule (H 2 O) exists in the form of water molecules, but a number of water molecules are aggregated together through hydrogen bonds to form water molecule clusters, commonly known as "water molecule clusters", which are usually larger than 10 water molecules. It has poor activity and cannot break through the protection of ordinary silica gel and waterproof coating. However, due to the high activity and small size of the very few small molecular groups in the human body, it can slowly penetrate into the protective layer of the circuit through years of accumulation, reaching a certain level. amount, it will cause damage to the circuit

However, the existing technology cannot guarantee the long-term normal operation of the implanted circuit in the human body, and the reliability is relatively poor, and there is a great potential safety hazard.

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