CN108837301A - Micro-bend electrode of artificial cochlea and preparation method thereof - Google Patents
Micro-bend electrode of artificial cochlea and preparation method thereof Download PDFInfo
- Publication number
- CN108837301A CN108837301A CN201810435336.9A CN201810435336A CN108837301A CN 108837301 A CN108837301 A CN 108837301A CN 201810435336 A CN201810435336 A CN 201810435336A CN 108837301 A CN108837301 A CN 108837301A
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- electrode
- micro
- bend
- platinumiridio
- loop
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- 210000003477 cochlea Anatomy 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 230000004936 stimulating effect Effects 0.000 claims abstract description 25
- 239000004020 conductor Substances 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 239000000741 silica gel Substances 0.000 claims description 12
- 229910002027 silica gel Inorganic materials 0.000 claims description 12
- 229960001866 silicon dioxide Drugs 0.000 claims description 12
- 238000003698 laser cutting Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000008119 colloidal silica Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 230000000638 stimulation Effects 0.000 claims description 6
- 238000009966 trimming Methods 0.000 claims description 6
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000009832 plasma treatment Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000002513 implantation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005424 photoluminescence Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 241000122159 Modiolus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000860 cochlear nerve Anatomy 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0526—Head electrodes
- A61N1/0541—Cochlear electrodes
Abstract
The invention discloses micro-bend electrodes of a kind of artificial cochlea and preparation method thereof, including setting gradually electrode leading portion, electrode middle section and electrode back segment, the electrode leading portion includes the flexible electrical cartridge that electrode leading portion forefront is arranged in, curved side several electrode contacts arranged at equal interval, the first sounding mark, the second sounding mark and the third sounding mark that set gradually in micro-bend electrode excurvation side in micro-bend electrode；The electrode middle section includes first the second boosting of boosting ring ring, the very thin spire of contact conductor, contact conductor spire；The electrode back segment includes loop electrode, connect with loop electrode loop electrode lead, the stimulating electrode lead and deconcentrator being connect with electrode contacts, setting and the consistent slot of electrode contacts add-back path electrode quantity, pass through for loop electrode lead and stimulating electrode lead on deconcentrator.The whole and with holes electrode contacts of the micro-bend electrode of the present invention, hence it is evident that the reliability after convenience and implantation when improving artificial cave.
Description
Technical field
The present invention relates to electron medical treatment field, in particular to a kind of micro-bend electrode of artificial cochlea and preparation method thereof.
Background technique
Used artificial cochlea electrode battle array connection only has two kinds of structure types one is straight electrode battle array connection in the world at present, another
Kind is pre-bending electrode array connection, and there are also one is micro-bend electrode array connection.Since elastic force acts on after straight electrode implantation, cochlea cannot be held tightly
Current spread is caused on inner shaft side, and power consumption is big, influences effect of stimulation, and is easy to squeeze cochlea inner tissue, causes to damage to cochlea
Wound, and pre-bending battle array joins electrode since camber is too big, implantation is very inconvenient, is imported using supporting wire, after supporting wire extraction, can exist
Controlling when leaving a hole on electrode, and being implanted into bad can also damage cochlea.
There are three types of the contacts that used artificial cochlea electrode battle array connection uses in the world at present, and one is spherical shape, another kind is
Annular, there are also one is piece shapes.Spherical point contacts electrode array connection exposed area is small, and power consumption is big, stimulates insufficient.Ring contacts electrode
Battle array connection is whole circle stimulation, although exposed area is big, it is excited that it can cause the nerve other than auditory nerve to generate, and influences to stimulate
Purpose.Piece shape contact electrode battle array joins exposed area and is situated between spherical point contacts electrode array and ring contacts electrode array connection, and is not
Whole circle stimulation, effect of stimulation is good, small power consumption.The prior art is arc-shaped using piece shape contact battle array connection, contact, is adhered to silicon
Glue surface, is not buckled to, and is easy to fall off, and bottom be it is arc-shaped, directionality is bad when implantation, is easy to produce torsion, is not achieved
The purpose that effect is swashed to nearly modiolus direction, influences effect of stimulation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of to return hook-shaped or U-shaped electrode contacts with sidewise hole, with silica gel
Body combine it is stronger, bare area is more optimized, small power consumption, micro-bend electrode of the sufficient artificial cochlea of electro photoluminescence and preparation method thereof.
To achieve the goals above, technical scheme is as follows：A kind of micro-bend electrode of artificial cochlea, including successively set
Electrode leading portion, electrode middle section and electrode back segment are set, the electrode leading portion includes the flexible electrode that electrode leading portion forefront is arranged in
Curved side several electrode contacts arranged at equal interval, the first depth set gradually in micro-bend electrode excurvation side in head, micro-bend electrode
Scale designation, the second sounding mark and third sounding mark；Draw including first the second boosting of boosting ring ring, electrode in the electrode middle section
The very thin spire of line, contact conductor spire；The loop electrode that the electrode back segment includes loop electrode, is connect with loop electrode
Lead, the stimulating electrode lead being connect with electrode contacts and deconcentrator, setting and electrode contacts add-back path electrode number on deconcentrator
Consistent slot is measured, is passed through for loop electrode lead and stimulating electrode lead；Entire micro-bend electrode is all by colloidal silica injection molding shaping.
Preferably, the electrode middle section further includes the fillet being arranged in direction signs and direction signs.
Preferably, the first falope ring and the second falope ring is arranged in the loop electrode both ends.
Preferably, the electrode contacts are back hook-shaped electrode, and the first sidewise hole and the second sidewise hole, bottom are arranged at go back to hook
It is connect by the first solder joint with stimulating electrode lead on the inside of portion.
Preferably, the electrode contacts are U-shaped electrode, and third sidewise hole and the 4th sidewise hole, bottom is arranged in U-shaped two sides
Inside is connect by the second solder joint with stimulating electrode lead.
It is corresponding with above-mentioned electrode, the present invention also provides a kind of micro-bend method for making its electrode of artificial cochlea, including it is following
Step：
Make electrode contacts；
Stimulating electrode lead is made, by electrode contacts and the welding of stimulating electrode lead, ultrasonic cleaning and plasma treatment；
The electrode contacts being welded and stimulating electrode lead are molded with silica gel, platinumiridio silk bunchy, around spiral at electricity
The very thin spire of pole lead and contact conductor spire；
Make loop electrode；
Loop electrode lead is made, by loop electrode and the welding of loop electrode lead, ultrasonic cleaning and plasma treatment；
It is fixed in mold together with contact conductor spire, silica gel injection molding is added, surface carries out self-lubricating silica-gel coating；
Electrode contacts exposed surface laser cutting, cleaning and electrical inspection；
The production electrode contacts include the following steps：
Platinumiridio blank is annealed, is rolled as platinumiridio piece；
After platinumiridio piece laser cutting, punch forming；
The production stimulating electrode lead includes the following steps：
Platinumiridio blank is annealed, cold-drawn and is aligned as platinumiridio silk；
Coating and waveform processing are carried out to platinumiridio silk；
By platinumiridio silk trimming, coating is removed at both ends；
The production loop electrode includes the following steps：
Platinumiridio blank is annealed, cold-drawn, is aligned, is ground to annular platinumiridio piece；
Carry out laser cutting and deburring；
The production loop electrode lead includes the following steps：
Platinumiridio blank is annealed, cold-drawn and is aligned as platinumiridio silk；
Coating, trimming are carried out to platinumiridio silk, coating is removed at both ends.
Preferably, the production electrode contacts further include electrode two sides laser hole-cutting.
The micro-bend electrode of artificial cochlea by adopting the above technical scheme, include at least the following beneficial effects：
One, minor bending electrode global shape combines two boosting rings and direction signs, more convenient in implantation process, right
Cochlea is small, and unnecessary distortion will not be integrally caused to electrode；
Two, the combination of the electrode contacts with sidewise hole and colloidal silica is stronger, not easily to fall off, electrode contacts exposed area
Properly, artificial cave reliability and the big raising of safety, it is ensured that implant electrode works normally for a long time in human body, to artificial
Cochlea manufacturing technology has impetus.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the micro-bend electrode of artificial cochlea of the embodiment of the present invention.
Fig. 2 is electrode contacts (returning hook-shaped electrode) structural representation of the micro-bend electrode of artificial cochlea in one embodiment of the invention
Figure.
Fig. 3 is electrode contacts (U-shaped electrode) structural schematic diagram of the micro-bend electrode of artificial cochlea in further embodiment of this invention.
Fig. 4 is the micro-bend method for making its electrode flow chart of steps of artificial cochlea of embodiment of the present invention method.
Specific embodiment
Join as shown in figure 1 to 3, a kind of micro-bend electrode of artificial cochlea, including sets gradually electrode leading portion 01, electrode middle section 02
With electrode back segment 03, electrode leading portion 01 include the flexible electrical cartridge 1 of 01 forefront of electrode leading portion is set, curved side in micro-bend electrode
Several electrode contacts 5 arranged at equal interval, the first sounding mark 2 set gradually in micro-bend electrode excurvation side, the second depth
Label 3 and third sounding mark 4；Electrode middle section 02 includes 7 second boosting ring 8 of the first boosting ring, the very thin spire of contact conductor
11, contact conductor spire 12；The loop electrode lead that electrode back segment 03 includes loop electrode 13, connect with loop electrode 13
17, the stimulating electrode lead 18 and deconcentrator 19 being connect with electrode contacts 5, setting and 5 add-back road of electrode contacts on deconcentrator 19
The consistent slot 20 of 13 quantity of electrode, passes through for loop electrode lead 17 and stimulating electrode lead 18；Entire micro-bend electrode all by
6 injection molding shaping of colloidal silica.Silica gel hardness at flexible electrical cartridge 1 is 25A-50A, and the hardness of colloidal silica 6 is 35A-80A.Separated time
Device 19 can be rectangle or arc-shaped, be made of silica gel or rubber.
Electrode middle section 02 further includes the fillet 10 being arranged in direction signs 9 and direction signs 9.
The first falope ring 15 and the second falope ring 16 is arranged in 13 both ends of loop electrode, plays fixed function to loop electrode 13
While, boosting use can also be done.
Electrode contacts 5 are back hook-shaped electrode 28, are arranged the first sidewise hole 21 and the second sidewise hole 22 at time hook, in bottom
Side is connect by the first solder joint 26 with stimulating electrode lead 18,.
Electrode contacts 5 are U-shaped electrode 23, and third sidewise hole 24 and the 4th sidewise hole 25, bottom inside is arranged in U-shaped two sides
It is connect by the second solder joint 27 with stimulating electrode lead 18, the angle of U-shaped is 25-135 °.
The combination of time hook-shaped electrode 28 or U-shaped electrode 23 and colloidal silica 6 with sidewise hole is stronger, and electrode is exposed in silicon
Area outside colloid 6 is also very suitable, also has promotion to the effect of electro photoluminescence.
It is corresponding with above-mentioned electrode, embodiment of the present invention method referring to fig. 4, a kind of micro-bend electrode fabrication side of artificial cochlea
Method includes the following steps：
S10 makes electrode contacts；
S20 makes stimulating electrode lead, by electrode contacts and the welding of stimulating electrode lead, ultrasonic cleaning and plasma
Processing；
The electrode contacts being welded and stimulating electrode lead are molded by S30 with silica gel, platinumiridio silk bunchy, around spiral
At the very thin spire of contact conductor and contact conductor spire；
S40 makes loop electrode；
S50 makes loop electrode lead, by loop electrode and the welding of loop electrode lead, ultrasonic cleaning and plasma
Processing；
S60 is fixed in mold together with contact conductor spire, and silica gel injection molding is added, and surface carries out self-lubricating silica gel
Coating；
S70, electrode contacts exposed surface laser cutting, cleaning and electrical inspection；
In S10, production electrode contacts specifically include following steps：
Platinumiridio blank is annealed, is rolled as platinumiridio piece；
After platinumiridio piece laser cutting, punch forming；
In S20, production stimulating electrode lead specifically includes following steps：
Platinumiridio blank is annealed, cold-drawn and is aligned as platinumiridio silk；
Coating and waveform processing are carried out to platinumiridio silk；
By platinumiridio silk trimming, coating is removed at both ends；
In S40, production loop electrode specifically includes following steps：
Platinumiridio blank is annealed, cold-drawn, is aligned, is ground to annular platinumiridio piece；
Carry out laser cutting and deburring；
In S50, production loop electrode lead includes the following steps：
Platinumiridio blank is annealed, cold-drawn and is aligned as platinumiridio silk；
Coating, trimming are carried out to platinumiridio silk, coating is removed at both ends.
In S10, production electrode contacts further include electrode two sides laser hole-cutting.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (7)
1. a kind of micro-bend electrode of artificial cochlea, which is characterized in that after setting gradually electrode leading portion, electrode middle section and electrode
Section, the electrode leading portion include the flexible electrical cartridge that electrode leading portion forefront is arranged in, curved side arranged at equal intervals in micro-bend electrode
Several electrode contacts, the first sounding mark, the second sounding mark and the third that set gradually in micro-bend electrode excurvation side it is deep
Scale designation；The electrode middle section includes first the second boosting of boosting ring ring, the very thin spire of contact conductor, contact conductor spiral
Portion；The electrode back segment includes loop electrode, connect with loop electrode loop electrode lead, the stimulation being connect with electrode contacts
Contact conductor and deconcentrator, setting and the consistent slot of electrode contacts add-back path electrode quantity, draw for loop electrode on deconcentrator
Line and stimulating electrode lead pass through；Entire micro-bend electrode is all by colloidal silica injection molding shaping.
2. the micro-bend electrode of artificial cochlea according to claim 1, it is characterised in that：The electrode middle section further includes direction sign
The fillet known and be arranged in direction signs.
3. the micro-bend electrode of artificial cochlea according to claim 1, it is characterised in that：The loop electrode both ends setting first
Falope ring and the second falope ring.
4. the micro-bend electrode of artificial cochlea described in one of -3 according to claim 1, it is characterised in that：The electrode contacts are back to hook
Shape electrode, the first sidewise hole and the second sidewise hole are arranged at time hook, and bottom inside passes through the first solder joint and stimulating electrode lead
Connection.
5. the micro-bend electrode of artificial cochlea described in one of -3 according to claim 1, it is characterised in that：The electrode contacts are U-shaped
Third sidewise hole and the 4th sidewise hole is arranged in electrode, U-shaped two sides, and bottom inside is connected by the second solder joint and stimulating electrode lead
It connects.
6. the production method of the micro-bend electrode of artificial cochlea described in a kind of one of claim 1-5, it is characterised in that：Including following step
Suddenly：
Make electrode contacts；
Stimulating electrode lead is made, by electrode contacts and the welding of stimulating electrode lead, ultrasonic cleaning and plasma treatment；
The electrode contacts being welded and stimulating electrode lead are molded with silica gel, platinumiridio silk bunchy draws around spiral at electrode
The very thin spire of line and contact conductor spire；
Make loop electrode；
Loop electrode lead is made, by loop electrode and the welding of loop electrode lead, ultrasonic cleaning and plasma treatment；
It is fixed in mold together with contact conductor spire, silica gel injection molding is added, surface carries out self-lubricating silica-gel coating；
Electrode contacts exposed surface laser cutting, cleaning and electrical inspection；
The production electrode contacts include the following steps：
Platinumiridio blank is annealed, is rolled as platinumiridio piece；
After platinumiridio piece laser cutting, punch forming；
The production stimulating electrode lead includes the following steps：
Platinumiridio blank is annealed, cold-drawn and is aligned as platinumiridio silk；
Coating and waveform processing are carried out to platinumiridio silk；
By platinumiridio silk trimming, coating is removed at both ends；
The production loop electrode includes the following steps：
Platinumiridio blank is annealed, cold-drawn, is aligned, is ground to annular platinumiridio piece；
Carry out laser cutting and deburring；
The production loop electrode lead includes the following steps：
Platinumiridio blank is annealed, cold-drawn and is aligned as platinumiridio silk；
Coating, trimming are carried out to platinumiridio silk, coating is removed at both ends.
7. the micro-bend method for making its electrode of artificial cochlea according to claim 6, it is characterised in that：The production electrode contacts
It further include electrode two sides laser hole-cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435336.9A CN108837301B (en) | 2018-05-09 | 2018-05-09 | Micro-bending electrode for artificial cochlea and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435336.9A CN108837301B (en) | 2018-05-09 | 2018-05-09 | Micro-bending electrode for artificial cochlea and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN108837301A true CN108837301A (en) | 2018-11-20 |
| CN108837301B CN108837301B (en) | 2024-04-09 |
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Cited By (4)
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| CN110237419A (en) * | 2019-07-23 | 2019-09-17 | 上海华聆人工耳医疗科技有限公司 | Flat half-ring electrodes contact and preparation method thereof |
| CN110448798A (en) * | 2019-07-17 | 2019-11-15 | 浙江诺尔康神经电子科技股份有限公司 | Graphene artificial cochlea electrode and preparation method thereof |
| WO2020244062A1 (en) * | 2019-06-03 | 2020-12-10 | 浙江诺尔康神经电子科技股份有限公司 | Graphene oxide artificial cochlea electrode and manufacturing method therefor |
| CN110448798B (en) * | 2019-07-17 | 2024-05-17 | 浙江诺尔康神经电子科技股份有限公司 | Graphene artificial cochlea electrode and manufacturing method thereof |
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| CN110448798B (en) * | 2019-07-17 | 2024-05-17 | 浙江诺尔康神经电子科技股份有限公司 | Graphene artificial cochlea electrode and manufacturing method thereof |
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|---|---|
| CN108837301B (en) | 2024-04-09 |
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