CN201135436Y - Needle shaped nerve micro-electrode with position stable structure - Google Patents
Needle shaped nerve micro-electrode with position stable structure Download PDFInfo
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- CN201135436Y CN201135436Y CNU2007201907558U CN200720190755U CN201135436Y CN 201135436 Y CN201135436 Y CN 201135436Y CN U2007201907558 U CNU2007201907558 U CN U2007201907558U CN 200720190755 U CN200720190755 U CN 200720190755U CN 201135436 Y CN201135436 Y CN 201135436Y
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Abstract
Disclosed is an acicular nerve microelectrode with a position stabilizing structure, which is characterized in that the nerve microelectrode comprises an electrode body, the electrode body is acicular and has a front end and a tail end, and a plurality of bulges are fixed on the outer wall at one side near to the tail end of the electrode body along the same section; a plurality of electrode points are coated on the surface of the electrode body, and each electrode body is connected to the tail end of the electrode body by a conducting wire coated on the surface of the electrode body; an insulating layer is coated on the surface of the electrode body and covers the conducting wire; and the plurality of electrode points are exposed from the insulating layer. The acicular nerve microelectrode with the position stabilizing structure of the utility model adds an electrode positioning structure on the side face of the acicular nerve microelectrode body. The structure does not add the manufacturing difficulty and influence the insertion, but can reduce the relative displacement between the implanted acicular electrode and implanted tissues and particularly prevent the electrode from going out.
Description
Technical field
This utility model belongs to electrode sensor and the processing technique field that physiological signal detects, and more specifically is meant the needle-like nerve microelectrode of band position stability structure.
Background technology
Obtaining of brain electricity or electroneurographic signal is one of main method of understanding the neuroelectricity active situation, is the important research means of neuroelectricity physiology, medical diagnosis or brain science.Extracellular electrode be a kind of near the extracellular record neuron potential change or utilize stimulating current to influence the device of cell electrical activity; What be used to write down is called recording electrode, and what be used to stimulate is called stimulating electrode.
Kind electrode generally has two kinds, and a kind of is non-intrusion type, and electrode is the plane more, another kind is an intrusive mood, be needle-like, record or stimulation point are positioned near the needle point, can record single neuronic electrical activity signal or the neuron in the limited range is stimulated.In zoopery, when this needle electrode inserts in the nervous tissue, if do not have auxiliary location or fixture, the position of electrode in nervous tissue can change along with the motion of implant, incidental especially is that implant electrode is along the displacement opposite with direction of insertion, cause record on the electrode/stimulation site and be recorded/excite nerve the uncertainty of position between the unit, thereby make record and stimulate to such an extent that effect is difficult to keep stable, influenced the quality or the concordance of tracer signal.Can cause deviating from of implant electrode when serious.
The utility model content
The purpose of this utility model is, a kind of needle-like nerve microelectrode with the position stability structure is provided, and has increased the structure that can make positioning of electrode in the side of acicular nerve microelectrode body.This structural change originally straight needle electrode body side surface structure, make the cross section of electrode body one place or many places projection upwards be arranged in electrode axis, this structure does not increase the difficulty of processing technology, do not influence implantation, but can reduce the relative displacement between implanted needle electrode and the implanting tissue, can prevent that particularly electrode from deviating from.
This utility model provides a kind of needle-like nerve microelectrode with the position stability structure, it is characterized in that, comprising:
One electrode body, this electrode body is a needle-like, and a front end and a tail end are arranged, and is fixed with a plurality of projectioies in this electrode body near the same cross-sectional place, outer wall upper edge of a side of tail end;
A plurality of electrode points, these a plurality of electrode points are coated the surface of electrode body, and this each electrode body all is connected to the tail end of electrode body with the call wire of coating the electrode body surface;
One insulating barrier, this insulating barrier are coated the surface of electrode body and are covered in call wire;
Described a plurality of electrode points is exposed to insulating barrier.
Wherein this electrode body is silicon or metal or glass material.
Wherein the shape of cross section of this electrode body is circular, oval or polygonal shape.
Wherein the quantity of a plurality of projectioies on this electrode body is 1-4.
Wherein this electrode body and a plurality of projection are one-body molded.
Wherein this electrode body and a plurality of projection are welding or bonding.
Wherein these a plurality of projectioies are the wing triangle, and the angle that this triangle points to front end is an acute angle.
Wherein these a plurality of projectioies are wing lamellar, and the angle that this wing lamellar is pointed to front end is an acute angle.
Wherein the quantity of a plurality of electrode points is 1-50.
The beneficial effects of the utility model are:
The needle-like nerve microelectrode of band position stability structure of the present utility model has increased the structure that can make positioning of electrode in the side of acicular nerve microelectrode body.This structural change originally straight needle electrode body side surface structure, make the cross section of electrode body one place or many places projection upwards be arranged in electrode axis, this structure does not increase the difficulty of processing technology, do not influence implantation, but can reduce the relative displacement between implanted needle electrode and the implanting tissue, can prevent that particularly electrode from deviating from.
Description of drawings
For further specifying technology contents of the present utility model, below in conjunction with embodiment and accompanying drawing describes in detail as after, wherein:
Fig. 1 is the structural representation of first embodiment of the present utility model;
Fig. 2 is the structural representation of second embodiment of the present utility model.
The specific embodiment
See also shown in Figure 1ly, Fig. 1 is the structural representation of first embodiment of the present utility model, and this utility model provides a kind of needle-like nerve microelectrode with the position stability structure, it is characterized in that, comprising:
One electrode body 1, this electrode body 1 is a needle-like, length is between 0.5 millimeter to 15 millimeters.One front end 2 and a tail end 3 are arranged, and front end 2 tapered or the scalpriform or the tooth shapes of electrode body 1 can insert biological tissue with less resistance and also at utmost reduce inserting the damage at position.This electrode body 1 is silicon or metal or glass material, and the shape of cross section of this electrode body 1 is circular, oval or polygonal shape, and cross-sectional area is generally at 20 square microns to 3 square millimeter.A plurality of electrode points 4, these a plurality of electrode points 4 are coated the surface of electrode body 1, this each electrode body 1 all is connected to the tail end 3 of electrode body 1 with the call wire 5 of coating electrode body 1 surface, the quantity that is used for the electrode points 4 of extracellular recording or stimulation is 1-50 (figure is one), be distributed on electrode body 1 front end or the entire electrode body 1, the surface area of electrode points 4 is at 10 square microns to 5 square millimeter, all be connected to the tail end 3 of electrode body 1 on each electrode points 4 by call wire 5, these call wire 5 mutually insulateds are isolated.Except that electrode points 4, remainder comprises that call wire 5 all is insulated layer 7 sealing and covers on the electrode body 1.When electrode body 1 implanted animal nerve is organized, the current potential of electrode points 4 will change along with near the potential change of neurocyte electrical activity it, and be transmitted to external by call wire 5 this potential change; Perhaps will stimulate the signal of telecommunication to pass to electrode points 4, thereby stimulate or influence near the electrical activity of the nerve of electrode points 4 by call wire 5.Same cross-sectional place, outer wall upper edge at this electrode body 1 close tail end 3 is fixed with a plurality of protruding 6, the quantity of a plurality of protruding 4 on this electrode body 1 is 1-4, this electrode body 1 and a plurality of protruding 6 is one-body molded, or this electrode body 1 and a plurality of protruding 6 is welding or bonding, this a plurality of protruding 6 is the wing triangle, and the angle that this triangle points to electrode body 1 front end 2 is an acute angle.
See also shown in Figure 2, Fig. 2 is the structural representation of second embodiment of the present utility model, the structure of this second embodiment and first embodiment is basic identical, identical label is adopted at identical position, difference is, be fixed with a plurality of protrudingly 6 ' near the same cross-sectional place, outer wall upper edge of a side of tail end in this electrode body 1, this a plurality of protruding 6 ' be wing lamellar, and the angle of this wing lamellar sensing electrode body 1 front end 2 is an acute angle.
In conjunction with consulting Fig. 1 and Fig. 2, when electrode body 1 is inserted biological tissue, particularly enter when organizing when the tail end 3 of the electrode body 1 that has projection 6,6 ', the projection of the tail end 3 of electrode body 16, a 6 ' end forward is because angle is sharper, the resistance that forms is less, can easily enter; Tail end 3 projectioies 6, a 6 ' end angle backwards of electrode body 1 is bigger, and the resistance of formation is bigger, makes electrode body 1 be difficult to deviate from.For electrode body 1 along with electrode body 1 vertical direction on laterally move, the projection 6,6 ' of electrode body 1 tail end 3 has increased the resistance that electrode body 1 front end 2 laterally moves in tissue, so also can play certain restriction.Simultaneously,, certain distance is still arranged, so can not increase near the insertion damage the electrode points 4 apart from the electrode points 4 that is positioned at electrode body 1 front end 2 because projection 6,6 ' is installed in electrode body 1 tail end 3.Like this, a plurality of protruding 6,6 ' of electrode body 1 tail end 3 can increase the position stability relation between electrode points 4 and stimulation or the record object, reduces to move the signal noise that causes because of electrode body 1.
The foregoing description only is to give an example for convenience of description, and the interest field that this utility model is advocated should be as the criterion so that the claim scope is described certainly, but not only limits to the foregoing description.
Claims (9)
1, a kind of needle-like nerve microelectrode with the position stability structure is characterized in that, comprising:
One electrode body, this electrode body is a needle-like, and a front end and a tail end are arranged, and is fixed with a plurality of projectioies in this electrode body near the same cross-sectional place, outer wall upper edge of a side of tail end;
A plurality of electrode points, these a plurality of electrode points are coated the surface of electrode body, and this each electrode body all is connected to the tail end of electrode body with the call wire of coating the electrode body surface;
One insulating barrier, this insulating barrier are coated the surface of electrode body and are covered in call wire;
Described a plurality of electrode points is exposed to insulating barrier.
2, the needle-like nerve microelectrode of band position stability structure as claimed in claim 1 is characterized in that, wherein this electrode body is silicon or metal or glass material.
3, the needle-like nerve microelectrode of band position stability structure as claimed in claim 1 is characterized in that, wherein the shape of cross section of this electrode body is circular, oval or polygonal shape.
4, the needle-like nerve microelectrode of band position stability structure as claimed in claim 1 is characterized in that, wherein the quantity of a plurality of projectioies on this electrode body is 1-4.
As the needle-like nerve microelectrode of claim 1 or 4 described band position stability structures, it is characterized in that 5, wherein this electrode body and a plurality of projection are one-body molded.
As the needle-like nerve microelectrode of claim 1 or 4 described band position stability structures, it is characterized in that 6, wherein this electrode body and a plurality of projection are welding or bonding.
As the needle-like nerve microelectrode of claim 1 or 4 described band position stability structures, it is characterized in that 7, wherein these a plurality of projectioies are the wing triangle, the angle that this triangle points to front end is an acute angle.
As the needle-like nerve microelectrode of claim 1 or 4 described band position stability structures, it is characterized in that 8, wherein these a plurality of projectioies are wing lamellar, the angle that this wing lamellar is pointed to front end is an acute angle.
9, the needle-like nerve microelectrode of band position stability structure as claimed in claim 1 is characterized in that, wherein the quantity of a plurality of electrode points is 1-50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201907558U CN201135436Y (en) | 2007-12-12 | 2007-12-12 | Needle shaped nerve micro-electrode with position stable structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201907558U CN201135436Y (en) | 2007-12-12 | 2007-12-12 | Needle shaped nerve micro-electrode with position stable structure |
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| CN201135436Y true CN201135436Y (en) | 2008-10-22 |
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| CNU2007201907558U Expired - Fee Related CN201135436Y (en) | 2007-12-12 | 2007-12-12 | Needle shaped nerve micro-electrode with position stable structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512151A (en) * | 2011-12-09 | 2012-06-27 | 中国科学院半导体研究所 | Method for manufacturing three-dimensional nervus microelectrode |
| WO2013131261A1 (en) * | 2012-03-08 | 2013-09-12 | 中国科学院深圳先进技术研究院 | Flexible intracranial cortex microelectrode chip, preparation and packaging method therefor, and packaging structure thereof |
| CN103445790A (en) * | 2013-09-09 | 2013-12-18 | 重庆西南医院 | Animal auditory detecting electrode positioning device |
| CN105559778A (en) * | 2016-02-02 | 2016-05-11 | 上海交通大学 | Brain electrode for collecting brain electrical signals for long time and preparation method thereof |
| CN105662390A (en) * | 2008-06-20 | 2016-06-15 | 国武孝人 | Electrode |
| CN108042129A (en) * | 2017-12-29 | 2018-05-18 | 广东省中医院 | A kind of three-dimensional tiny array electrode for being used to detect cardiac muscular tissue's electric signal |
| WO2022266953A1 (en) * | 2021-06-24 | 2022-12-29 | 邢楚枫 | Microelectrode array and manufacturing method therefor |
-
2007
- 2007-12-12 CN CNU2007201907558U patent/CN201135436Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662390A (en) * | 2008-06-20 | 2016-06-15 | 国武孝人 | Electrode |
| CN102512151A (en) * | 2011-12-09 | 2012-06-27 | 中国科学院半导体研究所 | Method for manufacturing three-dimensional nervus microelectrode |
| WO2013131261A1 (en) * | 2012-03-08 | 2013-09-12 | 中国科学院深圳先进技术研究院 | Flexible intracranial cortex microelectrode chip, preparation and packaging method therefor, and packaging structure thereof |
| CN103445790A (en) * | 2013-09-09 | 2013-12-18 | 重庆西南医院 | Animal auditory detecting electrode positioning device |
| CN105559778A (en) * | 2016-02-02 | 2016-05-11 | 上海交通大学 | Brain electrode for collecting brain electrical signals for long time and preparation method thereof |
| CN108042129A (en) * | 2017-12-29 | 2018-05-18 | 广东省中医院 | A kind of three-dimensional tiny array electrode for being used to detect cardiac muscular tissue's electric signal |
| WO2022266953A1 (en) * | 2021-06-24 | 2022-12-29 | 邢楚枫 | Microelectrode array and manufacturing method therefor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20121212 |