Manual combined type microelectrode propeller and production method thereof

Abstract

The invention discloses a manual combined type microelectrode propeller and a production method thereof. The manual combined type microelectrode propeller is used for acquisition and stimulation of bioelectric signals of rodents and birds in free activities, and comprises a cylindrical shell, an upper tightening cap connected with the upper end of the shell and a lower tightening cap connected with the lower end of the shell, wherein an electrode clamp is arranged in the shell, a microelectrode is fixed on the electrode clamp and projects out of the lower end of the shell, a screw rod for pushing the electrode clamp to move projects from the upper end of the shell into the shell and is in point contact with the electrode clamp, a helical spring is arranged between the electrode clamp and the inner side of the lower end of the shell, and the microelectrode is connected with an electrode lead. The manual combined type microelectrode propeller is simple and light in structure and convenient to produce, uses resin as a main material and weighs only about 3g; only one lower tightening cap is consumed in use every time, other main parts are reusable; the microelectrode propeller is applicable to propelling of a low-flexibility electrode and also is applicable to propelling of a high-flexibility electrode; and in addition, the micro-propeller also can be combined to obtain a microelectrode asynchronous propeller for multipoint recording.

Description

technical field [0001] The invention relates to a manual combined microelectrode propeller and a manufacturing method, in particular to a brain research device suitable for but not limited to microelectrode propulsion of rodents and birds in a free state. Background technique [0002] Using microelectrodes to record the brain neural activity of experimental animals (such as rodents and birds) is a common technique for studying the neural basis of behavior, the neural mechanism of learning and memory, and other advanced neural activities. During the recording process, especially the chronic recording process, the recording of neural electrical activity usually uses a micro pusher to insert the recording electrode into the target position of the brain area of ​​the experimental animal. [0003] The micro-push device provided by the patent Hybrid Multichannel Printed Circuit Board Microdrive (US20090105776) includes a printed circuit board base, stainless steel conduits, electr...

AI Technical Summary

Problems solved by technology

[0009] The above-mentioned micro-thrusters capable of remote control or automatic propulsion have high precision and good application effect, but are expensive and difficult to be widely used; and the above-mentioned manual propulsion devices are often complex in structure or large in size and mass, and low in reuse rate. The wound surface formed during fixation is also large, which has a great impact on the free movement of animals. In addition, it is difficult to use the existing micro-propellers in combination to achieve micro-electrodes inserted into animal brain regions at different depths.

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