Implantation type bioelectrode and method for producing the same

Abstract

The invention relates to an implanted bioelectrode and a manufacturing method thereof, belonging to the technical field of micro manufacturing. An implanted bioelectrode comprises electrode stimulating points arranged on a Si substrate or glass substrate, electrode recording points positioned at the head of the work end and a metal micro wire which is positioned on a metal ring at the electrode connecting end and used for connecting the stimulating points and the end metal ring and forming the recording points; the work end of the electrode is sealed by nondegradable high molecular material with good biocompatibility into an elliptic cylinder shape; the connecting end of the electrode is sealed into a cylinder shape; the stimulating points are distributed at the upper and lower sides of the elliptic cylinder face of the bioelectrode work end; the recording points are positioned at the head of the bioelectrode work end. A manufacturing technique of the implanted bioelectrode comprises the following steps: 1) manufacturing stimulating points on the Si substrate or the glass substrate; 2) winding plural strands of micro wires into the spiral micro wires on a mandrel; 3) connecting the micro wire and placing the micro wire into a sealing die to form the work end of the bioelectrode; 4) being sheathed sequentially with the connecting end metal ring and being placed into the die to be sealed; and 5) truing to form two recording points to finish the micro-bioelectrode.

Description

technical field [0001] The invention belongs to the field of micro-manufacturing technology, in particular to a biological electrode suitable for implanting into a human body and a manufacturing method thereof. Background technique [0002] In modern medicine, the most effective way to treat serious neurological diseases, such as Parkinson's syndrome, optic nerve disorder, hearing nerve disorder, paralysis and severe epilepsy, is to target deep brains of patients through surgery. The electrode is implanted in the position, and the battery of the stimulator is used to power the electrode to perform long-term stimulation treatment on the diseased part. The key to a successful treatment is whether the location of the intraoperative target is accurate. Before the operation, the specific location of the surgical target can be determined by CT scanning according to the anatomical relationship. However, due to the variable size, shape, and direction of deep brain targets, as well...

AI Technical Summary

Problems solved by technology

These electrodes also have structures that can stimulate and record at the same time, but their position is located in the middle of the surface of the electrode, which is only suitable for the recording of electrical signals of cells around the electrode after implantation

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