Microelectrode making method and apparatus
A technology for manufacturing a device and a manufacturing method, applied in the field of micro-electrode manufacturing method and device, can solve the problems of cracked paint surface, the electrode wire cannot be too thin, and the exposed length cannot be accurately controlled, etc.
Inactive Publication Date: 2008-02-13
INSITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The problem with this process is that the electrode wire cannot be too thin, otherwise due to the effect of surface tension, the exposed length will be too large, and even the paint surface will be cracked in many places and cannot cover the electrode wire, resulting in insulation failure. The microelectrode with a small diameter will cause less damage to the tissue when it is inserted into the nerve tissue
Secondly, the exposed tip is realized by gravity and surface tension, and the exposed length cannot be accurately controlled, which affects the electrode impedance and performance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] Figure 1 is a schematic diagram of a microelectrode wire (1).
[0025] Fig. 2 is the manufacturing process of the microelectrode metal wire in the insulating paint (3); a metal wire (1) with a diameter of 20 microns and a sharp end is prepared, clamped on the chuck (2) moving up and down at a uniform speed, and moves downward Chuck (2), until the tip of the wire (1) exposes the liquid surface of the insulating varnish (3) for 50 microns, then move the chuck (2) upwards, and at the same time energize the heating coil (4) to heat the tip of the wire (1) to expose part, make the insulating varnish layer preliminarily solidify, repeat the above process 5 times, the thickness of the insulating varnish layer reaches about 3 microns, remove the metal wire (1) with the insulating varnish layer, put it into the oven and heat until the insulating varnish layer is completely cured.
[0026] Fig. 3 is the process of sinking the microelectrode wire (1) into the insulating varnish (3...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
The present invention relates to a method for making microelectrode and its device. Said method includes the following steps: a), utilizing electrochemical process to etch out fin metal wire is head portion is made into sharp form; b), soaking the fin metal wire whose sharp end is upwards in the insulating paint, its sharp end is exposed; c), moving the metal wire upwards, at the same time heating the exposed metal wire coated with insulating paint to make the insulating paint be solidified; d), repeatedly making step c to attain predefined insulating paint thickness; e), placing the metal wire coated with insulating paint into oven to make the insulating paint be completely solidified; and f), making finished product. Said device is formed from metal wire holder, insulating paint and heating coil.
Description
technical field [0001] The invention relates to the technical field of electrode manufacturing, in particular to a microelectrode manufacturing method and device. Background technique [0002] Microelectrode is a metal wire whose tip is exposed and the rest is insulated. In terms of basic neuroscience research, it is used for neurophysiological research. It can be inserted into brain tissue to detect nerve impulses in the brain. [0003] Microelectrodes used in neurophysiology are composed of sharp metal wires and insulating layers. The tip of the wire is exposed to a certain length. After being inserted into the nerve tissue, the exposed electrode tip can sense the discharge of nearby neurons, which can be used for basic research in neuroscience and medical applications. [0004] Commonly used microelectrode insulating materials are glass and insulating varnish. The glass material insulation process is relatively complicated, the exposed length of the tip is not easy to c...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00C23F1/00H01B13/16H01B13/30B05C3/02
Inventor 唐世明
Owner INSITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES