CN109116174A - A kind of artificial cochlear implant auxiliary electrode earth leakage tester and method - Google Patents
A kind of artificial cochlear implant auxiliary electrode earth leakage tester and method Download PDFInfo
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- CN109116174A CN109116174A CN201811108308.2A CN201811108308A CN109116174A CN 109116174 A CN109116174 A CN 109116174A CN 201811108308 A CN201811108308 A CN 201811108308A CN 109116174 A CN109116174 A CN 109116174A
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- auxiliary electrode
- resistance
- cochlear implant
- divider resistance
- earth leakage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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Abstract
The present invention relates to a kind of artificial cochlear implant auxiliary electrode earth leakage tester and methods, for testing the drain conditions of auxiliary electrode, described auxiliary electrode one end is to draw silk, including medical titanium tube, divider resistance, signal source and oscillograph, conduction liquid is filled in the medical titanium tube, the middle section of the auxiliary electrode is immersed in the conduction liquid, both ends extend to outside the conduction liquid, the signal source is connect with lead-out wire, described divider resistance one end is connect with medical titanium tube, other end ground connection, the oscillograph are connected to divider resistance both ends；By comparing the resistance value of divider resistance and leak resistance, judge whether the leakage current of auxiliary electrode meets the requirements.Compared with prior art, the present invention has delicate structure, convenient test, high reliability.
Description
Technical field
The present invention relates to electronic technology fields, fill more particularly, to a kind of artificial cochlear implant auxiliary electrode leakage tests
It sets and method.
Background technique
Artificial cochlea is a kind of electronic device, and the telecommunications of certain coding form is converted sound by external Sound Processor Unit
Number, restore, improve and rebuild the auditory function of deaf person by the directly excited auditory nerve of the electrode system to implant.Electrode system
System includes stimulating electrode and auxiliary electrode, and wherein auxiliary electrode one end is 6 electrode platinum wires, and the other end burns 6 wire electrodes
Spherical shape is made, each platinum electrode silk carries out isolated insulation with insulating coating.It, may if leaky occurs in insulating layer breakage
It will appear the problems such as stimulation wearer's face is neural, so how testing auxiliary electrode and whether leaking electricity is matter in manufacturing process
Measure an important link in management system.
Existing patent application CN106443291A discloses a kind of artificial cochlear implant earth detector, comprising: detection
Resistance, electric leakage equivalent resistance, capacitance, detection module and signal generator, the one end for the equivalent resistance that leaks electricity and artificial cochlea
The special chip stimulation output pin of implant connects, other end ground connection；One end of capacitance and artificial cochlear implant
Special chip stimulates output pin to connect, and the other end is connect with detection resistance；One end of detection resistance is connect with capacitance, separately
One end is connect with signal generator；The voltage waveform that detection module is used to will test resistance is extracted, amplification, is exported.But the device
Structure is complicated, at high cost.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of artificial caves
Body auxiliary electrode earth leakage tester and method.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of artificial cochlear implant auxiliary electrode earth leakage tester, for testing the drain conditions of auxiliary electrode, institute
Auxiliary electrode one end is stated to draw silk, including medical titanium tube, divider resistance, signal source and oscillograph, is filled out in the medical titanium tube
Filled with conduction liquid, the middle section of the auxiliary electrode is immersed in the conduction liquid, and both ends extend to outside the conduction liquid, institute
It states signal source to connect with lead-out wire, described divider resistance one end is connect with medical titanium tube, other end ground connection, the oscillograph connection
In divider resistance both ends；
By comparing the resistance value of divider resistance and leak resistance, judge whether the leakage current of auxiliary electrode meets the requirements.
Further, the medical titanium tube is a swan-neck.
Further, the divider resistance is connected on the outside of the swan-neck.
Further, the conduction liquid is medical saline.
Further, the conduction liquid is 9% medical saline.
Further, whether the leakage current for judging auxiliary electrode meets the requirements specifically:
The voltage Vo for obtaining divider resistance both ends is detected by oscillograph, judges whether there is Vo >=1/2Vs, if so,
Rj≤R0 determines that auxiliary electrode has electric leakage, if it is not, then determining that electric leakage current is met the requirements, wherein Vs is the electricity of signal source
Pressure, Rj are the resistance value of leak resistance, and R0 is the resistance value of divider resistance.
Further, the resistance value when resistance value of the divider resistance is selected as insulation performance minimum.
The present invention also provides a kind of test sides based on the artificial cochlear implant auxiliary electrode earth leakage tester
Method, comprising the following steps:
1) signal source issues signal that voltage is Vs to lead-out wire；
2) the voltage Vo for obtaining divider resistance both ends is detected by oscillograph；
3) Vo >=1/2Vs is judged whether there is, if so, Rj≤R0, determines that auxiliary electrode has electric leakage, if it is not, then sentencing
Fixed electricity leakage current is met the requirements, wherein Vs is the voltage of signal source, and Rj is the resistance value of leak resistance, and R0 is divider resistance
Resistance value.
Compared with prior art, the present invention have with following the utility model has the advantages that
1) present invention realizes that detection of electrical leakage, structure are simple using a titanium tube equipped with medical saline.
2) convenient test of the present invention, does not damage auxiliary electrode structure, can quickly be tested in actual products.
3) present invention detection high reliablity, accurately judges platinum wire insulating properties and leakage property.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
The present embodiment provides a kind of artificial cochlear implant auxiliary electrode earth leakage testers, for testing auxiliary electrode 6
Drain conditions, 6 one end of auxiliary electrode be draw silk C, the other end be platinum conducting sphere D.As shown in Figure 1, measuring device includes
Medical titanium tube 1, divider resistance 3, signal source 4 and oscillograph 5, medical titanium tube 1 is interior to be filled with conduction liquid 2, the centre of auxiliary electrode 6
Part is immersed in conduction liquid 2, and both ends extend to outside conduction liquid 2, and signal source 4 is connect with lead-out wire, 3 one end of divider resistance and doctor
It is connected with titanium tube 1, other end ground connection, oscillograph 5 is connected to 3 both ends of divider resistance；By comparing divider resistance 3 and leak resistance
Resistance value, judge whether the leakage current of auxiliary electrode 6 meets the requirements.
In the present embodiment, medical titanium tube 1 is a swan-neck, facilitates the placement of auxiliary electrode 6.
Divider resistance 3 can connect in any point of medical titanium tube 1, the present embodiment, and divider resistance 3 is connected to swan-neck
Outside, at A as shown in figure 1.
Conduction liquid 2 is medical saline.In the present embodiment, conduction liquid 2 is 9% medical saline.
It is now assumed that auxiliary electrode has electric leakage, as shown in Figure 1, being B point at electric leakage, because physiological saline is covered with titanium tube, B point
Can be connected by physiological saline with titanium tube inner casing any place conducting, and because titanium tube is electric conductor, B point and divider resistance
It is connected, positive pole is grounded by drawing silk B point at electric leakage, then to A point, then by divider resistance at this time, is formed one and is returned
Road.
Test method based on above-mentioned artificial cochlear implant auxiliary electrode earth leakage tester the following steps are included:
1) signal source 4 issues signal that voltage is Vs to lead-out wire, and in the present embodiment, setting voltage Vs is 1KHZ/
40Vpp；
2) voltage Vo, Vo=R0/ (R0+Rj) the * Vs at 3 both ends of divider resistance is obtained by the detection of oscillograph 5；
3) Vo >=1/2Vs is judged whether there is, if so, Rj≤R0, determines that auxiliary electrode has electric leakage, if it is not, then sentencing
Fixed electricity leakage current is met the requirements, wherein Vs is the voltage of signal source 4, and Rj is the resistance value of leak resistance, and R0 is divider resistance 3
Resistance value.The resistance value R0 of divider resistance 3 is selected as by the resistance value as defined in technical requirements when insulation performance minimum.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (8)
1. a kind of artificial cochlear implant auxiliary electrode earth leakage tester, for testing the drain conditions of auxiliary electrode (6), institute
State auxiliary electrode (6) one end for draw silk, which is characterized in that including medical titanium tube (1), divider resistance (3), signal source (4) and
Oscillograph (5), the medical titanium tube (1) is interior to be filled with conduction liquid (2), and the middle section of the auxiliary electrode (6) is immersed in institute
It states in conduction liquid (2), both ends extend to the conduction liquid (2) outside, and the signal source (4) connect with lead-out wire, the partial pressure electricity
Resistance (3) one end is connect with medical titanium tube (1), and other end ground connection, the oscillograph (5) is connected to divider resistance (3) both ends；
By comparing the resistance value of divider resistance (3) and leak resistance, judges whether the leakage current of auxiliary electrode (6) meets and want
It asks.
2. artificial cochlear implant auxiliary electrode earth leakage tester according to claim 1, which is characterized in that the doctor
It is a swan-neck with titanium tube (1).
3. artificial cochlear implant auxiliary electrode earth leakage tester according to claim 2, which is characterized in that described point
Piezoresistance (3) is connected on the outside of the swan-neck.
4. artificial cochlear implant auxiliary electrode earth leakage tester according to claim 1, which is characterized in that described to lead
Electro-hydraulic (2) are medical saline.
5. artificial cochlear implant auxiliary electrode earth leakage tester according to claim 4, which is characterized in that described to lead
Electro-hydraulic (2) are 9% medical saline.
6. artificial cochlear implant auxiliary electrode earth leakage tester according to claim 1, which is characterized in that described to sentence
Whether the leakage current of disconnected auxiliary electrode (6) meets the requirements specifically:
The voltage Vo for obtaining divider resistance (3) both ends is detected by oscillograph (5), judges whether there is Vo >=1/2Vs, if so,
Then Rj≤R0 determines that auxiliary electrode has electric leakage, if it is not, then determining that electric leakage current is met the requirements, wherein Vs is signal source
(4) voltage, Rj are the resistance value of leak resistance, and R0 is the resistance value of divider resistance (3).
7. artificial cochlear implant auxiliary electrode earth leakage tester according to claim 1, which is characterized in that described point
The resistance value of piezoresistance (3) is selected as resistance value when insulation performance minimum.
8. a kind of test method based on artificial cochlear implant auxiliary electrode earth leakage tester as described in claim 1,
Characterized by comprising the following steps:
1) signal source (4) issues signal that voltage is Vs to lead-out wire；
2) the voltage Vo at divider resistance (3) both ends is obtained by oscillograph (5) detection；
3) Vo >=1/2Vs is judged whether there is, if so, Rj≤R0, determines that auxiliary electrode has electric leakage, if it is not, then determining electricity
Leakage current is met the requirements, wherein Vs is the voltage of signal source (4), and Rj is the resistance value of leak resistance, and R0 is divider resistance (3)
Resistance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108308.2A CN109116174A (en) | 2018-09-21 | 2018-09-21 | A kind of artificial cochlear implant auxiliary electrode earth leakage tester and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108308.2A CN109116174A (en) | 2018-09-21 | 2018-09-21 | A kind of artificial cochlear implant auxiliary electrode earth leakage tester and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109116174A true CN109116174A (en) | 2019-01-01 |
Family
ID=64856155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108308.2A Pending CN109116174A (en) | 2018-09-21 | 2018-09-21 | A kind of artificial cochlear implant auxiliary electrode earth leakage tester and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109116174A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120191160A1 (en) * | 2006-08-25 | 2012-07-26 | Cochlear Limited | Current leakage detection method and device |
| CN207067322U (en) * | 2017-07-20 | 2018-03-02 | 上海力声特医学科技有限公司 | A kind of multi-channel artificial cochlea wire electrode coating insulation performance detecting system |
| CN208969186U (en) * | 2018-09-21 | 2019-06-11 | 上海华聆人工耳医疗科技有限公司 | A kind of artificial cochlear implant auxiliary electrode earth leakage tester |
-
2018
- 2018-09-21 CN CN201811108308.2A patent/CN109116174A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120191160A1 (en) * | 2006-08-25 | 2012-07-26 | Cochlear Limited | Current leakage detection method and device |
| CN207067322U (en) * | 2017-07-20 | 2018-03-02 | 上海力声特医学科技有限公司 | A kind of multi-channel artificial cochlea wire electrode coating insulation performance detecting system |
| CN208969186U (en) * | 2018-09-21 | 2019-06-11 | 上海华聆人工耳医疗科技有限公司 | A kind of artificial cochlear implant auxiliary electrode earth leakage tester |
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