CN104887350A - 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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- CN104887350A CN104887350A CN201510299324.4A CN201510299324A CN104887350A CN 104887350 A CN104887350 A CN 104887350A CN 201510299324 A CN201510299324 A CN 201510299324A CN 104887350 A CN104887350 A CN 104887350A
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- electrode
- artificial cochlea
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- array connection
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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, particularly relate to the artificial cochlea electrode battle array connection that a kind of straight cranked electrode is combined.
Background technology
Artificial cochlea is the hair cell utilizing acoustic-electric transducer mount to replace loss of function in deaf person's cochlea, directly stimulates auditory nerve to make deaf person produce a kind of electronic installation of audition.Artificial cochlea comprises device outside (mainly comprising speech processor) and et al. Ke device two parts, and the Signal transmissions between device outside and et al. Ke device is completed by electromagnetic induction, therebetween for skin is separated by, does not have wire to connect.In whole artificial cochlea system, et al. Ke device is the part of most critical, and device outside only has the recovery that could be realized audition by it, and electrode array connection is the of paramount importance ingredient of et al. Ke device.
At present, artificial cochlea implanting device electrode array connection mainly contains two kinds of versions, and one is straight electrode battle array connection, and another kind is pre-bending (also claiming entirely curved) electrode array connection, and because the structure of implant is different, therefore function aspects is also each variant.For normal cochlear structures, straight electrode battle array connection can not coincide preferably with the spiral-shaped of cochlea, and due to the elasticity of electrode self, whole electrode array connection deflection cochlea is peripheral, and cause stimulating current spread, power consumption greatly, affects effect of stimulation.Straight electrode battle array connection implants direction due to uncontrollable electrode, usually adopts ring electrode, electrode array is joined rough, implant when inserting with cochlea lateral wall frictional resistance greatly, easily extrude cochlear tissue, damage caused to cochlea.And pre-bending electrode array connection initial condition is helical form, it is closer to the spiral ganglion cell of cochlea, stimulates more concentrated, can improve the resolution capability of language, and power consumption is little, but directly inserts in cochlea when it can not conveniently be performed the operation.At present, have and utilize assistive device to help to carry out electrode insertion during operation, also have pre-buried support inner core in electrode array connection.And adopt the pre-bending electrode array connection supporting inner core, supporting inner core needs pre-buried to full electrode section, and electrode could be allowed to change into straight state by case of bending and be convenient to insert, the hollow tubular structures that therefore support steel core will insert just must be very long, very thin again, electrode array connection fabrication and processing difficulty is large.Move back because electrode array connection insertion overall process all needs limit to insert change, operate also more difficult, also very high to the technical requirement of doctor.
Therefore, a kind of being easy to is needed to insert and the artificial cochlea electrode battle array that effect of stimulation is good connection.
Summary of the invention
The shortcoming of prior art in view of the above, the artificial cochlea electrode battle array that the object of the present invention is to provide a kind of straight cranked electrode combined joins, and is difficult to insert for solving artificial cochlea electrode battle array connection in prior art, and the problem that effect of stimulation is bad.
For achieving the above object and other relevant objects, the invention provides the artificial cochlea electrode battle array connection that a kind of straight cranked electrode is combined, described artificial cochlea electrode battle array connection is made up of the 3rd electrode section of the first electrode section of the linearity be connected successively, the second electrode section of arc-shaped and linearity, be provided with the tubular structure communicated in first electrode section and the second electrode section, described 3rd electrode section is solid construction and stretches into the front end of people's in ear as whole described artificial cochlea electrode battle array connection.
Preferably, medial surface and the lateral surface of described artificial cochlea electrode battle array connection are all filled with colloidal silica, and medial surface contacts with the modiolus of people's in ear.
Preferably, described artificial cochlea electrode battle array connection adopts double-face electrode, and double-face electrode is made up of two electrode slices and electrode tow, and 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 containing cavity of two electrode slices formation.
Preferably, the electrode tow in described first electrode section and described second electrode section is placed in the containing cavity that two electrode slices are formed, and between described tubular structure and electrode slice.
Preferably, the lateral surface that described tubular structure joins near described artificial cochlea electrode battle array is arranged.
Preferably, described artificial cochlea electrode battle array connection is increased gradually by diameter after forward direction.
Preferably, implantation flag is provided with in the junction of described second electrode section and described 3rd electrode section.
As mentioned above, the artificial cochlea electrode battle array connection that straight cranked electrode of the present invention is combined, there is following beneficial effect: adopt and whole artificial cochlea electrode battle array connection is designed to U-shaped, front end i.e. the 3rd electrode section of artificial cochlea electrode battle array connection adopts the straight electrode of linearity, so more meet the feature that human body cochlea front-end architecture is small-sized, it is more reasonable that straight electrode compares pre-cranked electrode, because front end is without the need to processing hollow tubular structures, it is thinner that this segment electrode can make, that can insert is darker, and can not embrace very tight to cochlea modiolus, later stage pull-out resistance is little, little to cochlear tissue damage.And the physical dimension of human body cochlea stage casing, back segment increases gradually, for more pressing close to modiolus, the second electrode section adopts the cranked electrode of arc-shaped, and the first electrode section adopts straight electrode, makes these the two sections structures forming prefabricated half cranked electrode, improves electrode stimulating effect.
Accompanying drawing explanation
Fig. 1 is shown as the combined artificial cochlea electrode battle array connection schematic diagram of straight cranked electrode of the present invention.
Fig. 2 is shown as the schematic cross-section at E1 electrode place in the 3rd electrode section of the present invention.
Fig. 3 is shown as the schematic cross-section at E9 electrode place in the second electrode section of the present invention.
Fig. 4 is shown as the schematic cross-section at E10 electrode place in the second electrode section of the present invention.
Fig. 5 is shown as the schematic cross-section at E19 electrode place 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.
I-coch schematic diagram implanted by the artificial cochlea electrode battle array connection that Fig. 7 is shown as straight cranked electrode of the present invention combined.
Element numbers explanation
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
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Fig. 7.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
For ease of understanding, now define: in literary composition, refer to the face for contacting with cochlea modiolus about the medial surface of artificial cochlea electrode battle array connection, the i.e. inner side of U-shaped, lateral surface is the face relative with medial surface, and vertical accompanying drawing direction is above-below direction, the upper and lower side of corresponding whole artificial cochlea electrode battle array connection, it does not contact with cochlea modiolus after the implantation.
As shown in Figure 1, the invention provides the artificial cochlea electrode battle array connection that a kind of straight cranked electrode is combined, artificial cochlea electrode battle array connection is by the first electrode section 1 of the linearity be connected successively, second electrode section 2 of arc-shaped and the 3rd electrode section 3 of linearity are formed, overall one-tenth U-shaped, first electrode section is by electrode E20 to E22, second electrode section is by electrode E10 to E19, 3rd electrode section by electrode E1 to electrode E9, the tubular structure 6 communicated is provided with in first electrode section 1 and the second electrode section 2, 3rd electrode section 3 is solid construction and stretches into the front end of people's in ear as whole artificial cochlea electrode battle array connection.The present invention adopts and whole artificial cochlea electrode battle array connection is designed to U-shaped, front end i.e. the 3rd electrode section 3 of artificial cochlea electrode battle array connection adopts the straight electrode of linearity, so more meet the feature that human body cochlea front-end architecture is small-sized, it is more reasonable that straight electrode compares pre-cranked electrode, because namely front end adopts solid construction without the need to processing hollow tubular structures, it is thinner that this segment electrode can make, that can insert is darker, and can not embrace very tight to cochlea modiolus, later stage pull-out resistance is little, little to cochlear tissue damage.And the physical dimension of human body cochlea stage casing, back segment increases gradually, for more pressing close to modiolus, the second electrode section adopts the cranked electrode of arc-shaped, and the first electrode section adopts straight electrode, makes these the two sections structures forming prefabricated half cranked electrode, improves electrode stimulating effect.
Specifically describe the electrode structure in each electrode section below.
Medial surface and the lateral surface of whole artificial cochlea electrode battle array connection are all filled with colloidal silica 4, and medial surface contacts with modiolus 71.Be the sectional view of E19 electrode in the second electrode section as shown in Figure 5, can find out by figure, at E19 electrode towards filling gel body 4 inside U-shaped, also filling gel body outside it.The inner side of general implant electrode battle array connection due to electrode stimulating point exposed, cause medial wall uneven, easily damage is caused to tissues such as modiolus during implantation, and the present invention adopts colloidal silica 4 to form smooth surface by making the inner side of U-shaped, significantly can reduce the friction of tissue such as artificial cochlea electrode battle array connection medial wall and modiolus etc., reduce to implant damage; Colloidal silica is adopted to fill the outside of artificial cochlea electrode battle array connection, namely near the side of cochlea lateral wall, making it is also smooth colloidal silica, when implanting, significantly can reduce the frictional force between artificial cochlea electrode battle array connection and cochlea lateral wall, make implantation more smooth and easy, 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 welded by two electrode slices 51 and electrode tow 52, is then pressed into required form.Two electrode slices 51 are symmetrically distributed on the two sides up and down of artificial cochlea electrode battle array connection, namely not inside U-shaped, do not fit (as shown in Figure 7) with modiolus 71.See shown in Fig. 2 and Fig. 3, the electrode tow 52 in the 3rd electrode section is placed in the containing cavity of two electrode slices 51 formation.See shown in Fig. 4 and Fig. 5, the electrode tow 52 in the first electrode section 1 and the second electrode section 2 is placed in the containing cavity that two electrode slices 51 are formed, and between tubular 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 is arranged.
Owing to adopting double-face electrode, each electrode has two electrode stimulating points, and as shown in Figure 6, two electrode slices and electrode stimulating surface E191, E192 are positioned at the upper and lower symmetric position of diagram, not inside U-shaped, do not point to modiolus.Two stimulation points send stimulus signal simultaneously, as shown in Figure 6, form spherical field stimulation, and can cover the inner all directions of cochlea, non-blind area, makes full use of all auditory cells.
Artificial cochlea electrode battle array connection is increased gradually by diameter after forward direction, and namely electrode size increases.From E1 electrode to E9 electrode, be the 3rd electrode section 3, straight electrode form, electrode size increases gradually, interior solid structure.Be provided with flag M1 in the junction of the second electrode section 2 and described 3rd electrode section 3, namely have between E9, E10 electrode and implant mark M1.From E10 electrode to E19 electrode, be the second electrode section 2, be semicircle, electrode size increases gradually, and inside has tubular structure 6.From E20 electrode to E22 electrode, be the 3rd electrode section, straight electrode form, diameter increases gradually, inner tool tubular structure 6.As shown in Figure 1, tubular structure 6 extends to implants mark M3, and entirety is positioned at the outside of the artificial cochlea electrode battle array connection of U-shaped.
As shown in Figure 7, concrete mode in the implantation cochlea 7 of artificial cochlea electrode of the present invention is: inserted by contact pin 8 in the tubular structure 6 of artificial cochlea electrode battle array connection, can artificial cochlea electrode battle array connection be changed into J-shaped by U-shaped, close to straight electrode, the 3rd electrode section inserts convenient without the need to 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 extract contact pin 8 out along direction 2 simultaneously, until 22 electrodes (i.e. E1 to E22) all push, extract contact pin out.
In sum, the artificial cochlea electrode battle array connection that the straight cranked electrode of the present invention is combined, 3rd electrode section adopts the straight electrode of linearity, and so more meet the feature that human body cochlea front-end architecture is small-sized, it is more reasonable that straight electrode compares pre-cranked electrode, because front end is without the need to processing hollow tubular structures, it is thinner that electrode can make, and that can insert is darker, and can not embrace very tight to cochlea modiolus, later stage pull-out resistance is little, little to cochlear tissue damage; Second electrode section adopts the cranked electrode of arc-shaped, more presses close to modiolus, improves electrode stimulating effect.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (8)
1. the artificial cochlea electrode battle array connection that a straight cranked electrode is combined, it is characterized in that, described artificial cochlea electrode battle array connection is made up of the 3rd electrode section (3) of first electrode section (1) of the linearity be connected successively, second electrode section (2) of arc-shaped and linearity, be provided with the tubular structure (6) communicated in first electrode section (1) and the second electrode section (2), described 3rd electrode section (3) is for solid construction and stretch into the front end of people's in ear as whole described artificial cochlea electrode battle array connection.
2. the artificial cochlea electrode battle array connection that straight cranked electrode according to claim 1 is combined, it is characterized in that: medial surface and the lateral surface of described artificial cochlea electrode battle array connection are all filled with colloidal silica (4), and medial surface contacts with the modiolus (71) of people's in ear.
3. the artificial cochlea electrode battle array connection that straight cranked electrode according to claim 1 is combined, it is characterized in that: described artificial cochlea electrode battle array connection adopts double-face electrode (5), double-face electrode (5) is made up of two electrode slices (51) and electrode tow (52), and described two electrode slices (51) are symmetrically distributed on the two sides up and down of described artificial cochlea electrode battle array connection.
4. straight cranked electrode according to claim 3 is combined artificial cochlea electrode battle array connection, is characterized in that: the electrode tow (52) in described 3rd electrode section (3) is placed in the containing cavity that two electrode slices (51) are formed.
5. the artificial cochlea electrode battle array connection that straight cranked electrode according to claim 3 is combined, it is characterized in that: the electrode tow (52) in described first electrode section (1) and described second electrode section (2) is placed in the containing cavity that two electrode slices (51) are formed, and is positioned between described tubular structure (6) and electrode slice (51).
6. the artificial cochlea electrode battle array connection that straight cranked electrode according to claim 1 is combined, is characterized in that: described tubular structure (6) is arranged near the lateral surface of described artificial cochlea electrode battle array connection.
7. the artificial cochlea electrode battle array connection that straight cranked electrode according to claim 1 is combined, is characterized in that: described artificial cochlea electrode battle array connection is increased gradually by diameter after forward direction.
8. the artificial cochlea electrode battle array connection that straight cranked electrode according to claim 1 is combined, is characterized in that: be provided with implantation flag in the junction of described second electrode section (2) and described 3rd electrode section (3).
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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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109715113A (en) * | 2016-10-24 | 2019-05-03 | Med-El电气医疗器械有限公司 | The fixation member of insertion tool for minimally invasive cochlear implant |
| CN114949598A (en) * | 2022-05-17 | 2022-08-30 | 深圳市美好创亿医疗科技股份有限公司 | Artificial cochlea ear hanging machine and implant |
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| CN114949598A (en) * | 2022-05-17 | 2022-08-30 | 深圳市美好创亿医疗科技股份有限公司 | Artificial cochlea ear hanging machine and implant |
| 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 |
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