Multi-site stimulating electrode array for brain stimulation and electrode interface thereof, irrigation mould

Abstract

The invention discloses a multi-site stimulating electrode array for brain stimulation, which belongs to the technical field of biomedical engineering, and an electrode interface and a plastic casting mold for the same. The electrode array comprises stimulating electrode plates, electrode wires, an electrode interface, and stimulating nodes. The multiple stimulating electrode plates are arranged at the same depth in total stimulating electrode. Each stimulating electrode plate is connected to the electrode interface via respective and individual electrode wires. The stimulating electrode plates are enclosed to form the columnar stimulating nodes. At least two or more groups of the stimulating nodes are connected by silica gel plastic package with the biocompatibility to form the electrode array. The male interface of the electrode interface is connected to one end of the stimulating electrode plates, and the female interface of the electrode interface is connected to one end of a stimulator. The plastic casting mold has openings at two ends, wherein one end is taken as the inlet end of the wires, and the other end is used for casting the silica gel having the biocompatibility, and an inner core is arranged in the middle of the mold. With the multi-site stimulating electrode array, the contradiction between the electrode size limit and the stimulating passage multiplexing is solved, and the three dimension of a stimulation manner and the optimization of a stimulating region are ensured.

Description

Technical field [0001] The invention relates to an electrode and its interface and mold in the technical field of biomedical engineering, and in particular to a multi-point stimulation electrode array for brain stimulation, its electrode interface and a potting mold. Background technique [0002] At present, the deep brain stimulator (DBS) has been used in the treatment of central nervous system diseases such as Parkinson's disease, essential tremor, epilepsy, chorea, obsessive-compulsive disorder, and torsion spasm. As a kind of non-destructive treatment, deep brain stimulators have made great progress in recent years. In the treatment of Parkinson's disease, patients have been able to return to normal life and have also achieved significant results in the treatment of other diseases. The advantage is that the stimulation signal can be adjusted according to the severity of the disease, and the damage to the nerve nucleus is small and reversible. [0003] When the brain depth sti...

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of electrode are: 1. The stimulation accuracy of the electrode is low. For the ring electrode, the diameter of the stimulation area is close to 3-4 mm, which is easy to exceed the functional nucleus area, resulting in false stimulation of the surrounding functional nucleus.

2. Unable to cope with electrode displacement. Once the electrode is displaced, the stimulation area of ​​the electrode cannot be adjusted, which may easily cause false stimulation

3. The number of channels is small. For ring electrodes, due to the simple arrangement of electrode stimulation points, it is difficult to integrate multiple channels at the end of the electrode.

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