CN201529113U - Adsorption glass microelectrode negative pressure sucking and amplifier connecting adapter - Google Patents
Adsorption glass microelectrode negative pressure sucking and amplifier connecting adapter Download PDFInfo
- Publication number
- CN201529113U CN201529113U CN2009200687723U CN200920068772U CN201529113U CN 201529113 U CN201529113 U CN 201529113U CN 2009200687723 U CN2009200687723 U CN 2009200687723U CN 200920068772 U CN200920068772 U CN 200920068772U CN 201529113 U CN201529113 U CN 201529113U
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- negative pressure
- glass microelectrode
- adsorption
- nerve trunk
- syringe
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model belongs to the field of laboratory apparatuses, and relates to an experimental apparatus used for attracting the nerve trunk so as to record nerve trunk discharging and observing the action potential of the nerve trunk, and particularly relates to an adsorption glass microelectrode negative pressure sucking and amplifier connecting adapter. The adapter comprises a glass microelectrode, a hollow plastic pipe, silver wires, a three-way pipe, a syringe and a conducting wire, wherein the silvers penetrate through the hollow pipe after being welded with the conducting wire, the three-way pipe is tightly connected with the hollow plastic pipe and sealed through silica gel, and the syringe is connected with the three-way pipe. The utility model can be used for absorbing the nerve trunk in researches, and has the characteristics of convenient, simple and easy operation, stable recorded signals, low manufacture cost and the like.
Description
Technical field
The true instrument field of testing of this utility model relates to by the experimental provision of negative-pressure adsorption nerve trunk with record nerve trunk action potential.Be specifically related to a kind of adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor.
Background technology
In Physiologic Studies, the record of nerve trunk action potential is classics and representative medical science electricity Physiological Experiment, and traditional experiment uses ordinary electrode to carry out record usually.The structure of ordinary electrode (as shown in Figure 1) is to install two at the front end of an insulation tube to have low-resistance tinsel, and every one metal wire respectively is connected with amplifier input terminal (doing guiding, recording electrode time spent) by a lead.Research practice shows, ordinary electrode is the following shortcoming of normal appearance in experimental record: when one, record separates neural action potential, thereby eletrode tip is easily run into surrounding tissue and is caused losing of purpose signal, and the nerve of separating is exposed in the air, needs often to drip ringer solution to keep the moistening of nerve; Two, can't write down the stripped brain-spinal cord specimen nerve root discharge of immersing fully in the body lotion; When exsomatizing the discharge of brain sheet spinal cord specimen nerve root in the record body lotion, need glass microelectrode and body lotion to form insulating barrier, and microelectrode need to link to each other with lead.The grapher of the nerve trunk action potential that present above-mentioned development test is adopted is purchased in foreign products more, and overseas-built and adapter patch-clamp system support involves great expense, and damages the difficult repairing in back.
Summary of the invention
The purpose of this utility model is the defective that overcomes prior art, and a kind of experimental provision that can write down the nerve trunk action potential better is provided.Be specifically related to a kind of adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor.Utilize this utility model, the record of integral body in can experimentizing preferably and stripped somatic nerve, cranial nerve action potential.
Particularly, this utility model mainly is made of glass microelectrode (2), hollow plastic tube (1), filamentary silver (4), tee T (6), syringe (7) and lead (5).Described filamentary silver (4) with run through hollow pipe (1) after lead (5) welds mutually, described tee T (6) closely is connected with hollow plastic tube (1), at last syringe (7) is connected with tee T (6), makes negative pressure suction device.
In this utility model, described tee T adopts silica gel sealing, with anti-gas-leak;
In this utility model, adopt 2.8-3cm long filamentary silver and wire bonds;
In this utility model, described hollow plastic tube is long to be 10-12cm.
This utility model by lead with breathe amplifier and link to each other, the signal that records is input to amplifier, have make simply, structure is small and exquisite, signal stabilization, advantage such as cheap.
For the ease of understanding, below will this utility model be described in detail by concrete drawings and Examples.It needs to be noted, instantiation and accompanying drawing only are in order to illustrate, obviously those of ordinary skill in the art can illustrate according to this paper, in scope of the present utility model this utility model is made various corrections and change, these corrections and change are also included in the scope of the present utility model.
Description of drawings
Fig. 1 is the organigram of ordinary electrode.
Fig. 2 is this utility model structural representation,
Wherein, 1 is hollow plastic tube, and 2 is glass microelectrode, and 3 is cerebrospinal fluid, and 4 is filamentary silver, and 5 is lead, and 6 is tee T, and 7 connect syringe for latex tubing.
Fig. 3 is this utility model Experimental equipment.
The specific embodiment
Filamentary silver that 2.8cm is long and wire bonds are together, after carefully putting into the long hollow plastic tube of 10cm, tee T (commercially available) closely is connected with hollow plastic tube, with the silica gel sealing tee T with anti-gas-leak, again syringe is linked to each other with tee T and make negative pressure suction device, i.e. " adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor " inhaled with the breathing amplifier this negative pressure suction device through lead and linked to each other.
Filamentary silver that 3cm is long and wire bonds are together, after carefully putting into the long hollow plastic tube of 12cm, tee T (commercially available) closely is connected with hollow plastic tube, with the silica gel sealing tee T with anti-gas-leak, again syringe is linked to each other with tee T and make negative pressure suction device, i.e. " adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor " inhaled with the breathing amplifier this negative pressure suction device through lead and linked to each other.
The stripped brain sheet that will have the nervus sublingualis root is put into bath, adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor are with after amplifier is connected, taking out a little cerebrospinal fluid with syringe contacts with filamentary silver, form path, then the nervus sublingualis root is sucked the discharge that glass microelectrode just can write down the nervus sublingualis root.
Use the discharge of above-mentioned attractor record newborn rat, compare with the electrode of ordinary electrode and foreign applications, have simple in structure, easy to make, easy operating, signal stabilization, the advantage such as cheap.
Claims (4)
1. adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor, it is characterized in that, constitute by glass microelectrode (2), hollow plastic tube (1), filamentary silver (4), tee T (6), syringe (7) and lead (5), described filamentary silver (4) with run through hollow pipe (1) after lead (5) welds mutually, described tee T (6) closely is connected with hollow plastic tube (1), and syringe (7) is connected with tee T (6).
2. by claim 1 described adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor, it is characterized in that described tee T silica gel sealing makes anti-gas-leak.
3. by claim 1 described adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor, it is characterized in that the described and long 2.8-3cm of filamentary silver wire bonds.
4. by claim 1 described adsorption-type glass microelectrode negative pressure-pumping and amplifier connection adaptor, it is characterized in that described hollow plastic tube is long to be 10-12cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200687723U CN201529113U (en) | 2009-03-12 | 2009-03-12 | Adsorption glass microelectrode negative pressure sucking and amplifier connecting adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200687723U CN201529113U (en) | 2009-03-12 | 2009-03-12 | Adsorption glass microelectrode negative pressure sucking and amplifier connecting adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201529113U true CN201529113U (en) | 2010-07-21 |
Family
ID=42524524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200687723U Expired - Fee Related CN201529113U (en) | 2009-03-12 | 2009-03-12 | Adsorption glass microelectrode negative pressure sucking and amplifier connecting adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201529113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522037A (en) * | 2011-11-01 | 2012-06-27 | 中国人民解放军第四军医大学 | Skull physical-model experimental device based on true shape and resistivity distribution |
| CN110575613A (en) * | 2019-10-14 | 2019-12-17 | 岭南师范学院 | electrode for in vivo micro-administration and electrophysiological recording |
-
2009
- 2009-03-12 CN CN2009200687723U patent/CN201529113U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522037A (en) * | 2011-11-01 | 2012-06-27 | 中国人民解放军第四军医大学 | Skull physical-model experimental device based on true shape and resistivity distribution |
| CN102522037B (en) * | 2011-11-01 | 2014-05-14 | 中国人民解放军第四军医大学 | Skull physical-model experimental device based on true shape and resistivity distribution |
| CN110575613A (en) * | 2019-10-14 | 2019-12-17 | 岭南师范学院 | electrode for in vivo micro-administration and electrophysiological recording |
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Legal Events
| 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: 20100721 Termination date: 20130312 |