CN104887350B - Artificial cochlea electrode array coupling combined with straight-cranked electrode - Google Patents
Artificial cochlea electrode array coupling combined with straight-cranked electrode Download PDFInfo
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- CN104887350B CN104887350B CN201510299324.4A CN201510299324A CN104887350B CN 104887350 B CN104887350 B CN 104887350B CN 201510299324 A CN201510299324 A CN 201510299324A CN 104887350 B CN104887350 B CN 104887350B
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- 210000003477 cochlea Anatomy 0.000 title claims abstract description 85
- 230000008878 coupling Effects 0.000 title abstract 4
- 238000010168 coupling process Methods 0.000 title abstract 4
- 238000005859 coupling reaction Methods 0.000 title abstract 4
- 241000122159 Modiolus Species 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 6
- 238000002513 implantation Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000008119 colloidal silica Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000638 stimulation Effects 0.000 abstract description 7
- 230000004936 stimulating effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000007943 implant Substances 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 206010011878 Deafness Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 210000002768 hair cell Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 210000001323 spiral ganglion Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention provides an artificial cochlea electrode array coupling combined with a straight-cranked electrode. The artificial cochlea electrode array coupling comprises a first linear electrode section, a second arc electrode section and a third linear electrode section, which are sequentially connected. The first electrode section and the second electrode section are provided with communicated hollow pipe structures inside. The third electrode section is of solid structure and is used as the front end of the integral artificial cochlea electrode array coupling extending into a human ear. The third electrode section is a linear straight electrode and lives up to the feature of the small size of the front end structure of the artificial cochlea better, and the straight electrode is more reasonable than a pre-cranked electrode. Since the front end has no need to be processed in the hollow tubular structure, the electrode can be thinner and extend deeper without holding modiolus of the cochlea tighter, posterior pulling resistance is small and the cochlea tissue is little damaged; the second electrode section is the arc cranked electrode and is closer to the modiolus, and electrode stimulation effect is improved.
Description
Technical field
The present invention relates to artificial cochlear implant, the combined artificial cochlea electrode battle array of more particularly to a kind of straight cranked electrode
Connection.
Background technology
Artificial cochlea is the hair cell replacing loss of function in deaf person's cochlea using acoustic-electric transducer mount, directly stimulates audition
Nerve makes deaf person produce a kind of electronic installation of audition.Artificial cochlea includes device outside (mainly including speech processor) and body
It is implanted into device two parts, the signal transmission between device outside and et al. Ke device is completed by electromagnetic induction, the two it
Between be separated by for skin, do not have wire connect.In whole artificial cochlea system, et al. Ke device is the part of most critical, body
Outer device only just enables the recovery of audition by it, and electrode array connection is the of paramount importance composition portion of et al. Ke device
Point.
At present, artificial cochlea implanting device electrode array connection mainly has two kinds of versions, and one kind is straight electrode battle array connection, another
Planting is pre-bending (also referred to as entirely curved) electrode array connection, and because the structure of implant is different, therefore function aspects are also each variant.For just
Normal cochlear structures, straight electrode battle array connection can not be preferably identical with the spiral-shaped of cochlea, and the elasticity due to electrode itself,
Whole electrode array connection deflection cochlea periphery, causes stimulating current to spread, power consumption is big, affects effect of stimulation.Straight electrode battle array connection due to
Uncontrollable electrode implants direction, generally adopts ring electrode so that electrode array connection is rough, during implantation insertion with cochlea outside
Sidewall friction resistance is big, easily extrudes cochlear tissue, cochlea is caused damage.And pre-bending electrode array connection initial condition is spiral
Shape, it stimulates and more concentrates, can improve the resolution capability of language closer to the spiral ganglion cell of cochlea, and small power consumption, but
It is to be inserted directly in cochlea when it can not conveniently be performed the operation.At present, have and help carry out electrode insertion during operation using assistive device,
Also there is pre-buried support inner core in electrode array connection.And using supporting the pre-bending electrode array connection of inner core, support inner core needs pre-buried extremely
Full electrode section, could allow electrode change into straight state by case of bending and facilitate insertion into, and therefore support to be inserted hollow of steel core
Tubular structure is necessary for very long and very thin, and electrode array connection fabrication and processing difficulty is big.Because electrode array joins insertion overall process all
Need side to insert change to move back, operation is also relatively difficult, also very high to the technical requirements of doctor.
Accordingly, it would be desirable to a kind of be easily inserted and artificial cochlea electrode battle array that effect of stimulation is good connection.
Content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of combined people of straight cranked electrode
Work cochlear electrode battle array joins, and is difficult to insert for solving artificial cochlea electrode battle array connection in prior art, and effect of stimulation is bad
Problem.
For achieving the above object and other related purposes, the present invention provides a kind of straight cranked electrode combined artificial cochlea's electricity
Pole matrix, described artificial cochlea electrode battle array connection is by the second electrode section of the linear first electrode section being sequentially connected, arc-shaped
Constitute with linear 3rd electrode section, in first electrode section and second electrode section, be provided with the tubular structure communicating, described the
Three electrode sections are solid construction and stretch into the front end in human ear as entirely described artificial cochlea electrode battle array connection.
Preferably, the medial surface of described artificial cochlea electrode battle array connection and lateral surface are all filled with colloidal silica, medial surface with
Modiolus in human ear contacts.
Preferably, described artificial cochlea electrode battle array connection adopts double-face electrode, and double-face electrode is by two electrode slices and wire electrode
Shu Zucheng, described two electrode slices are symmetrically distributed on the two sides up and down of described artificial cochlea electrode battle array connection.
Preferably, the electrode tow in described 3rd electrode section is placed in the accommodating intracavity that two electrode slices are formed.
Preferably, the electrode tow in described first electrode section and described second electrode section is placed in what two electrode slices were formed
Accommodating intracavity, and be located between described tubular structure and electrode slice.
Preferably, described tubular structure is arranged near the lateral surface that described artificial cochlea electrode battle array joins.
Preferably, diameter is gradually increased described artificial cochlea electrode battle array connection from the front to the back.
Preferably, it is provided with implantation flag in the junction of described second electrode section and described 3rd electrode section.
As described above, the combined artificial cochlea electrode battle array connection of the straight cranked electrode of the present invention, have the advantages that：Adopt
With whole artificial cochlea electrode battle array connection is designed to U-shaped, the front end of artificial cochlea electrode battle array connection is that the 3rd electrode section adopts straight line
The straight electrode of shape, so more meets the small-sized feature of human body cochlea front-end architecture, and it is more reasonable that straight electrode compares pre- cranked electrode,
Because front end need not process hollow tubular structures, it is thinner that this segment electrode can make, and be inserted into is deeper, and will not be right
Cochlea modiolus is embraced very tight, and later stage pull-out resistance is little, cochlear tissue is damaged little.And the structure chi in human body cochlea stage casing, back segment
Very little be gradually increased, be closer to modiolus, second electrode section adopts the cranked electrode of arc-shaped, first electrode section adopts straight electrode, makes
The structure of this two sections prefabricated half cranked electrodes of formation, improves electrode stimulating effect.
Brief description
Fig. 1 be shown as the present invention straight cranked electrode combined artificial cochlea electrode battle array connection schematic diagram.
Fig. 2 is shown as the schematic cross-section at E1 electrode in the 3rd electrode section of the present invention.
Fig. 3 is shown as the schematic cross-section at E9 electrode in the second electrode section of the present invention.
Fig. 4 is shown as the schematic cross-section at E10 electrode in the second electrode section of the present invention.
Fig. 5 is shown as the schematic cross-section at E19 electrode in the second electrode section of the present invention.
Fig. 6 is shown as the stimulation schematic diagram of the second electrode section of the present invention.
Fig. 7 be shown as the present invention straight cranked electrode combined artificial cochlea electrode battle array connection implant i-coch schematic diagram.
Component label instructions
1 first electrode section
2 second electrode sections
3 the 3rd electrode sections
4 colloidal silicas
5 double-face electrodes
51 electrode slices
52 electrode tow
6 tubular structures
7 cochlea
71 modiolus
8 contact pins
9 electrode forks
Specific embodiment
Hereinafter embodiments of the present invention are illustrated by particular specific embodiment, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Refer to Fig. 1 to Fig. 7.It should be clear that structure depicted in this specification institute accompanying drawings, ratio, size etc., all only in order to
Content disclosed in cooperation description, so that those skilled in the art understands and reads, being not limited to the present invention can be real
The qualificationss applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
Whole, under not affecting present invention effect that can be generated by and the purpose that can reach, all should still fall in disclosed skill
In the range of art content obtains and can cover.Meanwhile, in this specification cited as " on ", D score, "left", "right", " middle " and
The term of " one " etc., is merely convenient to understanding of narration, and is not used to limit the enforceable scope of the present invention, its relativeness
It is altered or modified, under no essence change technology contents, when being also considered as the enforceable category of the present invention.
For ease of understanding, now define：Literary composition in regard to artificial cochlea electrode battle array connection medial surface refer to for cochlea modiolus phase
The face of contact, i.e. the inner side of U-shaped, lateral surface is the face relative with medial surface, and vertical accompanying drawing direction is above-below direction, right
The upper and lower side of the whole artificial cochlea electrode battle array connection answered, it is not contacted with cochlea modiolus after the implantation.
As shown in figure 1, the present invention provides a kind of straight cranked electrode combined artificial cochlea electrode battle array connection, artificial cochlea electrode
Battle array connection is by the linear first electrode section 1 being sequentially connected, the second electrode section 2 of arc-shaped and the 3rd linear electrode section 3
Constitute, overall become U-shaped, first electrode section by electrode E20 to E22, second electrode section by electrode E10 to E19, the 3rd electrode section by
It is provided with the tubular structure 6 communicating, the 3rd electrode section 3 is in electrode E1 to electrode E9, first electrode section 1 and second electrode section 2
Solid construction and stretch into front end in human ear as whole artificial cochlea electrode battle array connection.The present invention adopts whole artificial cochlea
Electrode array connection is designed to U-shaped, and the front end of artificial cochlea electrode battle array connection is that the 3rd electrode section 3 adopts linear straight electrode, so
More meet the small-sized feature of human body cochlea front-end architecture, it is more reasonable, because front end need not add that straight electrode compares pre- cranked electrode
Work hollow tubular structures adopt solid construction, and it is thinner that this segment electrode can make, and be inserted into is deeper, and will not be right
Cochlea modiolus is embraced very tight, and later stage pull-out resistance is little, cochlear tissue is damaged little.And the structure chi in human body cochlea stage casing, back segment
Very little be gradually increased, be closer to modiolus, second electrode section adopts the cranked electrode of arc-shaped, first electrode section adopts straight electrode, makes
The structure of this two sections prefabricated half cranked electrodes of formation, improves electrode stimulating effect.
Electrode structure in each electrode section is detailed below.
The medial surface of whole artificial cochlea electrode battle array connection and lateral surface are all filled with colloidal silica 4, medial surface and modiolus 71
Contact.It is the sectional view of E19 electrode in second electrode section as shown in Figure 5, be can be seen that by figure, in E19 electrode is towards U-shaped
Side filling gel body 4, also filling gel body outside it.Be typically implanted electrode array connection inner side due to electrode stimulating point exposed,
Cause medial wall uneven, easily the tissue such as modiolus is caused to damage during implantation, and the present invention will make U-shaped using colloidal silica 4
Inner side form smooth surface, friction that artificial cochlea electrode battle array join the tissues such as medial wall and modiolus can be greatly decreased, reduce
Implantation damages；Using colloidal silica fill artificial cochlea electrode battle array connection outside, that is, near cochlea lateral wall side so as to also be
Smooth colloidal silica, in implantation, can be greatly reduced the frictional force between artificial cochlea electrode battle array connection and cochlea lateral wall, make
Must implant more smooth, also can reduce the damage to cochlea outer wall tissues.
As shown in Figures 2 to 5, whole artificial cochlea electrode battle array connection adopts double-face electrode 5, and double-face electrode 5 is by two electrodes
Piece 51 and electrode tow 52 are welded, and are then pressed into required form.Two electrode slices 51 are symmetrically distributed in artificial cochlea's electricity
On the two sides up and down of pole matrix, that is, not towards U-shaped inside, do not fit (as shown in Figure 7) with modiolus 71.See Fig. 2 and Fig. 3 institute
Show, the electrode tow 52 in the 3rd electrode section is placed in the accommodating intracavity that two electrode slices 51 are formed.As shown in Fig. 4 and Fig. 5, first
Electrode tow 52 in electrode section 1 and second electrode section 2 is placed in the accommodating intracavity that two electrode slices 51 are formed, and is located at hollow pipe
Between structure 6 and electrode slice 51.As shown in Figure 1, the lateral surface that whole tubular structure 6 joins near artificial cochlea electrode battle array sets
Put.
Due to adopting double-face electrode, each electrode has two electrode stimulating points, and as shown in Figure 6, two electrode slices are electrode
Stimulate surface E191, E192 to be located at and illustrate position symmetrical above and below, inside U-shaped, be not directed to modiolus.Two stimulation points are simultaneously
Send stimulus signal, as shown in Figure 6, form spherical field stimulation, can cover the internal all directions of cochlea, non-blind area, fully
Using all auditory cells.
Diameter is gradually increased artificial cochlea electrode battle array connection from the front to the back, and that is, electrode size increases.From E1 electrode to E9 electrode,
For the 3rd electrode section 3, straight electrode form, electrode size is gradually increased, interior solid structure.In second electrode section 2 and described
The junction of three electrode sections 3 is provided with flag M1, has implantation mark M1 between E9, E10 electrode.Electricity from E10 electrode to E19
Pole, is second electrode section 2, and for semicircle, electrode size is gradually increased, and inside has tubular structure 6.From E20 electrode to E22
Electrode, is the 3rd electrode section, straight electrode form, and diameter is gradually increased, internal tool tubular structure 6.As shown in Figure 1, hollow pipe
Structure 6 extends to implantation mark M3, is integrally located at the outside of the artificial cochlea electrode battle array connection of U-shaped.
As shown in fig. 7, the concrete mode in the implantation cochlea 7 of the artificial cochlea electrode of the present invention is：Contact pin 8 is inserted people
In the tubular structure 6 of work cochlear electrode battle array connection, artificial cochlea electrode battle array connection can be changed into J-shaped by U-shaped, close to
Straight electrode, the 3rd electrode section insertion is conveniently without instrument.When artificial cochlea electrode battle array connection is implanted to implantation flag M1 position,
Prop up mark M21, M22 with electrode fork 9, artificial cochlea electrode battle array connection is pushed cochlea 7 along direction 1, progressively takes out along direction 2 simultaneously
Go out contact pin 8, until 22 electrodes (i.e. E1 to E22) all push, extract contact pin out.
In sum, the combined artificial cochlea electrode battle array connection of the straight cranked electrode of the present invention, the 3rd electrode section is using linear
Straight electrode, so more meet the small-sized feature of human body cochlea front-end architecture, it is more reasonable that straight electrode compares pre- cranked electrode, by
Hollow tubular structures need not be processed in front end, it is thinner that electrode can make, and be inserted into is deeper, and will not be to cochlea snail
Axle is embraced very tight, and later stage pull-out resistance is little, cochlear tissue is damaged little；Second electrode section adopts the cranked electrode of arc-shaped, more pastes
Nearly modiolus, improves electrode stimulating effect.So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial
Value.
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any ripe
The personage knowing this technology all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
All equivalent modifications becoming or change, must be covered by the claim of the present invention.
Claims (6)
1. a kind of straight cranked electrode combined artificial cochlea electrode battle array connection it is characterised in that described artificial cochlea electrode battle array connection by
Linear first electrode section (1), the second electrode section (2) of arc-shaped and the 3rd linear electrode section (3) being sequentially connected
Constitute, in first electrode section (1) and second electrode section (2), be provided with the tubular structure (6) communicating, described 3rd electrode section (3)
Stretch into the front end in human ear for solid construction and as entirely described artificial cochlea electrode battle array connection；Described artificial cochlea electrode battle array
The medial surface of connection and lateral surface are all filled with colloidal silica (4), and medial surface is contacted with the modiolus (71) in human ear；Described artificial
Cochlear electrode battle array connection adopts double-face electrode (5), and double-face electrode (5) is made up of two electrode slices (51) and electrode tow (52), institute
State two electrode slices (51) to be symmetrically distributed on the two sides up and down of described artificial cochlea electrode battle array connection, two electrode slices (51) are no
Towards artificial cochlea electrode battle array connection medial surface, do not fit with the modiolus (71) in human ear.
2. straight cranked electrode according to claim 1 combined artificial cochlea electrode battle array connection it is characterised in that：Described 3rd
Electrode tow (52) in electrode section (3) is placed in the accommodating intracavity that two electrode slices (51) are formed.
3. straight cranked electrode according to claim 1 combined artificial cochlea electrode battle array connection it is characterised in that：Described first
Electrode tow (52) in electrode section (1) and described second electrode section (2) is placed in the accommodating intracavity that two electrode slices (51) are formed,
And be located between described tubular structure (6) and electrode slice (51).
4. straight cranked electrode according to claim 1 combined artificial cochlea electrode battle array connection it is characterised in that：Described hollow
Tubular construction (6) is near the lateral surface setting of described artificial cochlea electrode battle array connection.
5. straight cranked electrode according to claim 1 combined artificial cochlea electrode battle array connection it is characterised in that：Described artificial
Diameter is gradually increased cochlear electrode battle array connection from the front to the back.
6. straight cranked electrode according to claim 1 combined artificial cochlea electrode battle array connection it is characterised in that：Described
The junction of two electrode sections (2) and described 3rd electrode section (3) is provided with implantation flag.
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| CN201510299324.4A CN104887350B (en) | 2015-06-03 | 2015-06-03 | Artificial cochlea electrode array coupling combined with straight-cranked electrode |
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| CN201510299324.4A CN104887350B (en) | 2015-06-03 | 2015-06-03 | Artificial cochlea electrode array coupling combined with straight-cranked electrode |
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| CN104887350B true CN104887350B (en) | 2017-02-22 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10994128B2 (en) * | 2016-10-24 | 2021-05-04 | Med-El Elektromedizinische Geraete Gmbh | Fixation component for insertion tools for minimally invasive cochlear implants |
| CN114949598B (en) * | 2022-05-17 | 2023-03-07 | 深圳市美好创亿医疗科技股份有限公司 | Artificial cochlea ear hanging machine and implant |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8880193B1 (en) * | 2009-05-22 | 2014-11-04 | Advanced Bionics, Llc | Cochlear electrode array |
| CN203970669U (en) * | 2014-07-03 | 2014-12-03 | 张道行 | artificial cochlea pre-bent electrode |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5645585A (en) * | 1996-03-15 | 1997-07-08 | Cochlear Ltd. | Cochlear electrode implant assembly with positioning system therefor |
| CN201260735Y (en) * | 2008-09-12 | 2009-06-24 | 上海力声特医学科技有限公司 | Cochlear implant electrode implantation device |
| US9037267B2 (en) * | 2010-05-27 | 2015-05-19 | Advanced Bionics Llc | Cochlear lead |
| CN201768051U (en) * | 2010-07-29 | 2011-03-23 | 上海力声特医学科技有限公司 | Artificial cochlea pre-bent electrode polar array |
| CN202288625U (en) * | 2011-05-17 | 2012-07-04 | 上海华聆人工耳医疗科技有限公司 | Prebending type artificial cochlea electrode |
| CN202184851U (en) * | 2011-08-09 | 2012-04-11 | 杭州诺尔康神经电子科技有限公司 | Micro-bending cochlear implant electrode with saddle-shaped contact |
| CN104688433A (en) * | 2015-03-23 | 2015-06-10 | 重庆大学 | Artificial cochlear bending electrode modified with PEDOT/CNT (3,4-ethylenedioxythiophene/carbon nanotubes) coating |
| CN204734581U (en) * | 2015-06-03 | 2015-11-04 | 上海力声特医学科技有限公司 | Directly bend artifical cochlea electrode battle array antithetical couplet that electrode made up mutually |
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2015
- 2015-06-03 CN CN201510299324.4A patent/CN104887350B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8880193B1 (en) * | 2009-05-22 | 2014-11-04 | Advanced Bionics, Llc | Cochlear electrode array |
| CN203970669U (en) * | 2014-07-03 | 2014-12-03 | 张道行 | artificial cochlea pre-bent electrode |
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