CN103976806B - A kind of internally-fixed Middle Ear Implant oeil de boeuf oscillator - Google Patents
A kind of internally-fixed Middle Ear Implant oeil de boeuf oscillator Download PDFInfo
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Abstract
The invention belongs to biomedical engineering field, relate to a kind of internally-fixed Middle Ear Implant oeil de boeuf oscillator and preparation method thereof.Internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention is made up of head and afterbody, and described head and afterbody are weldingly connected, and are provided with electromagnetic induction vibrating elements in afterbody, are wrapped with medical elastic material.Titanium alloy head of the present invention and the afterbody reference human body temporal bone REN internal structure particular design including electromagnetic induction vibrating elements, through on probation, result shows, its head can directly be positioned in REN, be convenient to fix, obviously can simplify operation process, reduce operation risk; Described induction vibrating elements is positioned at outside REN, and volume is large, improves oscillation intensity, effectively can improve the frequency response of oscillator, is conducive to its popularization in market and utilization at home.
Description
Technical field
The invention belongs to biomedical engineering field, relate to Middle Ear Implant, be specifically related to a kind of internally-fixed Middle Ear Implant oeil de boeuf oscillator.
Background technology
Deafness is one of common disease affecting human normal life's work, wear hearing aid is the common selection of deafness patient, and traditional sonifer exists a lot of limitation, mainly contain and wear discomfort (canal occlusion, skin irritation, allergy), acoustic poor effect (limited, the acoustic distortion of Hz-KHz, acoustic feedback).More there is patient cannot wear hearing aid because of inflammation, wound or external auditory meatus and middle ear deformity.According to statistics, only have 23% wear hearing aid in deafness patient, wherein 12% patient never uses, and only has the people of 58% to represent satisfaction completely in those patients often used.Middle Ear Implant vibration directly can be transmitted and driven the vibrating elements in ear or internal ear, but do not affect a kind of device of tympanum and external auditory meatus sound conduction, and it can make up the deficiency of traditional hearing aid to a certain extent.But, relevant research display, in the middle severe conductivity or mixed deafness patient of part external auditory meatus, ossicular chain or tympanum abnormal (as external auditory meatus shaping on congenital, stapes are fixed), due to operative failure or be difficult to operation and sonifer use difficulty etc. reason, often cause Middle Ear Implant device to be difficult to effectively acoustic energy is transmitted into internal ear through oval window acoustic approach.Therefore, from 2006, there are many scholars to start oeil de boeuf approach Middle Ear Implant to be used for clinical practice, and achieve good clinical efficacy.
The oeil de boeuf approach Middle Ear Implant of prior art, in the put procedure of its oscillator, due to the anatomical features of mankind's temporal bone, needs the part sclerotin of worn REN antetheca and upper wall, and fully to expose round window membrane, oscillator needs to cover soft tissue in its back-end after placing and fixed.Because it places fixing process more complicated, easily the intraoperative compliaction such as cochlea damage occur, and the uncertainty of postoperative effect is comparatively large, therefore, non-general ENT doctor can grasp.On the other hand, although the medical record of domestic existing case is reported at present, aspect, market monopolizes primarily of imported product, expensive; Therefore, complicated operation and expensive price limit oeil de boeuf approach Middle Ear Implant is the popularization in market and utilization at home.
Summary of the invention
The object of the invention is the defect for overcoming prior art, a kind of new internally-fixed Middle Ear Implant oeil de boeuf oscillator is provided, be specifically related to a kind of by titanium alloy head and the internally-fixed Middle Ear Implant oeil de boeuf oscillator that forms containing the afterbody of vibrating elements with and preparation method thereof.
Internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention improves on the basis of the oeil de boeuf oscillator of prior art, its configuration design is become to adapt to the structure of human body temporal bone REN interior shape, therefore, the vibrating elements of its afterbody can by the titanium alloy head according to REN structure particular design, with REN strong bonded while its top contacts with round window membrane, without the need to the part sclerotin of prior worn REN antetheca and upper wall, can operation process be simplified, be conducive to the popularization of domestic oeil de boeuf oscillator.On the other hand, the afterbody containing vibrating elements is positioned at outside REN, and because of the space constraint not by REN inside, the specification of vibrating elements can obviously increase, and significantly can improve oscillation intensity, and effectively improves the frequency response of oscillator.
Specifically, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, is characterized in that, be made up of head 1 and afterbody 2, and described head 1 is weldingly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in described afterbody 2; Medical elastic material is enclosed with outside described oeil de boeuf oscillator.
In the present invention, the head of described middle ear oeil de boeuf oscillator adopts titanium alloy material to make oval mesa-shaped entity according to human body temporal bone REN internal structure particular design, and in embodiments of the invention, described head prepared by preferred titanium aluminum vanadium alloy material; Usually REN is put into when this head uses;
Its end face of head and the bottom surface of described Middle Ear Implant oeil de boeuf oscillator are not parallel, and end face is circular, and diameter is 1.9 ± 0.8mm, surperficial hemispherical protuberance, and height is 0.2mm; Its bottom surface is oval, and major axis is 3.0 ± 1.0mm, and minor axis is 2.0 ± 0.8mm, and end face upper limb is 0.7 ± 0.3mm apart from bottom surface distance, and end face lower edge is 1.8 ± 0.5mm apart from bottom surface distance, and the angle of upper limb and bottom surface is 90 ± 5 °, and tilts 20 ± 10 ° laterally; Adopt medical elastic material to wrap up around the round platform of this head, thickness is 0.5mm;
In the present invention, the afterbody 2 of described Middle Ear Implant oeil de boeuf oscillator is in cylinder type, and there is electromagnetic induction vibrating elements 3 its inside, by forming at the two ends of induction vibrating elements and side wrap titanium alloy material, in embodiments of the invention, described afterbody prepared by preferred titanium aluminum vanadium alloy material; The specification of afterbody is 4.0 ± 1.0mm, and high 3.2mm, is usually located at during use outside REN;
Described electromagnetic induction vibrating elements is a titanium alloy cylinder, its inner placement cylindhca permanent magnet, outside winding copper wire; In embodiments of the invention, adopt Nd-Fe-B permanent magnet, its diameter is 1mm, and height is 3mm; Described copper wire, diameter 0.05-0.1mm, the thick 0.005mm of surface-coated insulant, uniform winding is 600 ± 200 circles on titanium alloy cylinder; Described titanium alloy cylinder, use the titanium alloy material identical with oscillator head to prepare, its internal diameter, slightly larger than interior permanent magnets diameter, is 1.03 ± 0.01mm, wall thickness 0.1mm, high slightly larger than its inner permanent magnetic height, is 3.1mm;
Described electromagnetic induction vibrating elements 3 is prepared by following method, copper is adopted to make conductive coil, with dimaond die, be drawn into copper wire, its surface-coated insulant, evenly be around on titanium alloy cylinder, cylindhca permanent magnet is placed in cylinder, by two ends with around use material titanium alloy sheet identical with oscillator head wrap up, the cylinder that formation is closed, this cylinder external diameter is 4.0 ± 1.0mm, be highly 3 ± 0.5mm, end face is connected with the bottom surface of titanium alloy head 1 and welds, and draws copper wire the two poles of the earth, connecting signal source in bottom surface central authorities or side.
In the present invention, described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, and two is applicable to left ear and auris dextra respectively.
In the present invention, provide the preparation method of internally-fixed Middle Ear Implant oeil de boeuf oscillator, it comprises step:
(1) titanium alloy head is prepared
Adopt titanium alloy material to make the head of the oscillator of oval mesa-shaped entity, its end face is not parallel with bottom surface, and end face be circular, and surperficial hemispherical is swelled, and bottom surface is ellipse; Medical elastic material is adopted to wrap up around the round platform of this head;
2) afterbody of preparation containing electromagnetic induction vibrating elements
Copper is adopted to make conductive coil, with dimaond die, be drawn into copper wire, its surface-coated insulant, then, above-mentioned copper wire is evenly around on titanium alloy cylinder, places one piece of cylindhca permanent magnet in cylinder, two ends and around wrap up with titanium alloy sheet, form a closed cylinder, this cylindrical end face is connected with titanium alloy head bottom surface and welds, and draws copper wire the two poles of the earth, connecting signal source in bottom surface central authorities or side.
In embodiments of the invention, the head of described oscillator makes oval mesa-shaped entity; Its end face and bottom surface not parallel, end face is circular, and diameter is 1.9 ± 0.8mm, surperficial hemispherical protuberance, and height is 0.2mm; Its bottom surface is oval, and major axis is 3.0 ± 1.0mm, and minor axis is 2.0 ± 0.8mm, and end face upper limb is 0.7 ± 0.3mm apart from bottom surface distance, and end face lower edge is 1.8 ± 0.5mm apart from bottom surface distance, and the angle of upper limb and bottom surface is 90 ± 5 °, and tilts 20 ± 10 ° laterally; The medical elastic material wrapped up around the round platform of this head 1, its thickness is 0.5mm;
In embodiments of the invention, the afterbody of described oscillator is fixedly connected with head, and this afterbody contains electromagnetic induction vibrating elements, it is prepared by following method, adopts copper to make conductive coil, with dimaond die, be drawn into copper wire, diameter 0.05-0.1 ㎜, its surface-coated insulant, thickness 0.005mm, is evenly around in internal diameter 1.03 ± 0.01mm, high 3.1mm, on the titanium alloy cylinder of wall thickness 0.1mm, 600 ± 200 circles, place one piece of cylindric Nd-Fe-B permanent magnet in cylinder, diameter 1mm, high 3mm.By two ends with around use material titanium alloy sheet identical with oscillator head to wrap up, form a closed cylinder, external diameter 4.0 ± 1.0mm, high 3.3mm, end face is connected with titanium alloy head bottom surface and welds.Copper wire the two poles of the earth are drawn, connecting signal source in bottom surface central authorities or side; Use medical elastic material parcel around, thickness is 0.5mm.
The Middle Ear Implant oeil de boeuf oscillator that the present invention obtains is through on probation, result shows, described oscillator, due to the afterbody that it is specially designed titanium alloy head with reference to human body temporal bone REN internal structure and includes electromagnetic induction vibrating elements, and is formed by medical elastic material parcel; When operation on probation is placed, its head can directly be positioned in REN, is convenient to fix, and obviously can simplify operation process, reduces operation risk; In addition, described induction vibrating elements is positioned at outside REN, and volume is large, improves oscillation intensity, effectively can improve the frequency response of oscillator, is conducive to its popularization in market and utilization at home.
Beneficial effect of the present invention is, the advantage of internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention has:
1. the oscillator profile in the present invention is according to REN internal structure design, and outsourcing medical elastic material, head can directly be positioned in REN, is convenient to fix.
2. the rounded protuberance of oscillator apical head, effectively can contact with round window membrane from all angles, improve the reliability of transfer of vibration.
3. induction vibrating elements is positioned at outside REN, and volume is large, improves oscillation intensity, effectively improves the frequency response of oscillator.
For the ease of understanding, by by concrete drawings and Examples, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention is described in detail below.It needs to be noted, instantiation and accompanying drawing are only to illustrate, obvious those of ordinary skill in the art can according to illustrating herein, within the scope of the invention various corrections and change are made to the present invention, such as, due to the difference that middle ear drum structure exists between individual and normal and pathological state, have change to a certain degree between specific product dimensionally, these are revised and change and also include in scope of the present invention.
Accompanying drawing explanation
Internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention is divided into left and right two, two to be applicable to left ear and auris dextra respectively, and below diagram is all for left ear money, and the medical elastic material of oscillator outer wrapping is not shown in the diagram.
Fig. 1 is the structural representation of oscillator of the present invention,
Wherein: 1 is head, 2 is afterbodys, and 3 is electromagnetic induction vibrating elementss.
Fig. 2 is oscillator head construction schematic diagram of the present invention.
Fig. 3 is the special viewing angle constructions schematic diagram of oscillator head of the present invention.
Detailed description of the invention
Embodiment 1
As shown in Figures 1 to 3, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, be made up of head 1 and afterbody 2, described head 1 is fixedly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in this afterbody 2;
Described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, two to be applicable to left ear and auris dextra respectively;
First the oval mesa-shaped entity-titanium aluminum vanadium alloy oscillator head of its profile according to REN structure particular design is suppressed with mould, its end face and bottom surface not parallel, end face is circular, diameter: 1.9mm, surface hemispherical protuberance, height is 0.2mm, bottom surface is oval, major axis: 3mm, minor axis: 2mm, end face upper limb is apart from bottom surface 0.7mm, end face lower edge is apart from bottom surface 1.8mm, upper limb and bottom surface angulation 90 degree, and tilt 20 degree slightly toward outside, afterwards, surface scribbled insulant, the copper wire of diameter 0.05mm around with internal diameter 1.03mm, high 3.1mm, on the titanium aluminum vanadium alloy cylinder of wall thickness 0.1mm, cylinder is inner places one piece of diameter 1mm, the Nd-Fe-B permanent magnet of high 3mm, two ends and surrounding use wraps up with material titanium alloy sheet, form a closed cylinder, external diameter 4mm, high 3.3mm, form the afterbody of oscillator, head and afterbody are weldingly connected, and draw copper wire the two poles of the earth in bottom surface central authorities or side, so that connecting signal source, use medical elastic material parcel around, thickness is 0.5mm.
Embodiment 2
As shown in Figures 1 to 3, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, be made up of head 1 and afterbody 2, described head 1 is fixedly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in this afterbody 2;
Described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, two to be applicable to left ear and auris dextra respectively;
First use mould to suppress an entity titanium aluminum vanadium alloy oscillator head, its shape is oval mesa-shaped, and end face and bottom surface are not parallel, and end face be circle, diameter: 2.3mm, and surperficial hemispherical is swelled, and height is 0.2mm.Bottom surface is oval, major axis: 3mm, minor axis: 2mm, end face upper limb distance bottom surface 0.7mm, end face lower edge distance bottom surface 1.8mm, upper limb and bottom surface angulation 90 degree, and tilts 20 degree slightly toward outside.Afterwards, surface is scribbled insulant, the copper wire of diameter 0.05mm is around with on the titanium aluminum vanadium alloy cylinder of internal diameter 1.03mm, high 3.1mm, wall thickness 0.1mm, and 600 circles, the Nd-Fe-B permanent magnet of one piece of diameter 1mm, high 3mm is placed in cylinder inside.Two ends and surrounding use with material titanium alloy sheet parcel, form a closed cylinder, external diameter 4mm, high 3.3mm.Form the afterbody of oscillator.Head and afterbody are weldingly connected, and use medical grade rubber parcel around, thickness is 0.5mm.
Embodiment 3
As shown in Figures 1 to 3, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, be made up of head 1 and afterbody 2, described head 1 is fixedly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in this afterbody 2;
Described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, two to be applicable to left ear and auris dextra respectively;
Suppress an entity titanium aluminum vanadium alloy oscillator head with mould, its shape is oval mesa-shaped, end face and bottom surface not parallel, end face is circular, diameter: 1.9mm, and surperficial hemispherical protuberance, height is 0.2mm.Bottom surface is oval, major axis: 3.5mm, minor axis: 2.4mm, end face upper limb distance bottom surface 0.7mm, end face lower edge distance bottom surface 1.8mm, upper limb and bottom surface angulation 90 degree, and tilts 20 degree slightly toward outside.Afterwards, surface is scribbled insulant, the copper wire of diameter 0.05mm is around with on the titanium aluminum vanadium alloy cylinder of internal diameter 1.03mm, high 3.1mm, wall thickness 0.1mm, and 600 circles, the Nd-Fe-B permanent magnet of one piece of diameter 1mm, high 3mm is placed in cylinder inside.Two ends and surrounding use with material titanium alloy sheet parcel, form a closed cylinder, external diameter 4mm, high 3.3mm.Form the afterbody of oscillator.Head and afterbody are weldingly connected, and use medical grade rubber parcel around, thickness is 0.5mm.
Embodiment 4
As shown in Figures 1 to 3, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, be made up of head 1 and afterbody 2, described head 1 is fixedly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in this afterbody 2;
Described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, two to be applicable to left ear and auris dextra respectively;
Suppress an entity titanium aluminum vanadium alloy oscillator head with mould, its shape is oval mesa-shaped, end face and bottom surface not parallel, end face is circular, diameter: 1.9mm, and surperficial hemispherical protuberance, height is 0.2mm.Bottom surface is oval, major axis: 3mm, minor axis: 2mm, end face upper limb distance bottom surface 0.55mm, end face lower edge distance bottom surface 2.05mm, upper limb and bottom surface angulation 90 degree, and tilts 20 degree slightly toward outside.Afterwards, surface is scribbled insulant, the copper wire of diameter 0.05mm is around with on the titanium aluminum vanadium alloy cylinder of internal diameter 1.03mm, high 3.1mm, wall thickness 0.1mm, and 600 circles, the Nd-Fe-B permanent magnet of one piece of diameter 1mm, high 3mm is placed in cylinder inside.Two ends and surrounding use with material titanium alloy sheet parcel, form a closed cylinder, external diameter 4mm, high 3.3mm.Form the afterbody of oscillator.Head and afterbody are weldingly connected, and use medical grade rubber parcel around, thickness is 0.5mm.
Embodiment 5
As shown in Figures 1 to 3, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, be made up of head 1 and afterbody 2, described head 1 is fixedly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in this afterbody 2;
Described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, two to be applicable to left ear and auris dextra respectively;
Suppress an entity titanium aluminum vanadium alloy oscillator head with mould, its shape is oval mesa-shaped, end face and bottom surface not parallel, end face is circular, diameter: 1.9mm, and surperficial hemispherical protuberance, height is 0.2mm.Bottom surface is oval, major axis: 3mm, minor axis: 2mm, end face upper limb distance bottom surface 0.7mm, end face lower edge distance bottom surface 1.8mm, upper limb and bottom surface angulation 90 degree, and tilts 25 degree slightly toward outside.Afterwards, surface is scribbled insulant, the copper wire of diameter 0.05mm is around with on the titanium aluminum vanadium alloy cylinder of internal diameter 1.03mm, high 3.1mm, wall thickness 0.1mm, and 600 circles, the Nd-Fe-B permanent magnet of one piece of diameter 1mm, high 3mm is placed in cylinder inside.Two ends and surrounding use with material titanium alloy sheet parcel, form a closed cylinder, external diameter 4mm, high 3.3mm.Form the afterbody of oscillator.Head and afterbody are weldingly connected, and use medical grade rubber parcel around, thickness is 0.5mm.
Embodiment 6
As shown in Figures 1 to 3, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, be made up of head 1 and afterbody 2, described head 1 is fixedly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in this afterbody 2;
Described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, two to be applicable to left ear and auris dextra respectively;
Suppress an entity titanium aluminum vanadium alloy oscillator head with mould, its shape is oval mesa-shaped, end face and bottom surface not parallel, end face is circular, diameter: 1.9mm, and surperficial hemispherical protuberance, height is 0.2mm.Bottom surface is oval, major axis: 3mm, minor axis: 2mm, end face upper limb distance bottom surface 0.7mm, end face lower edge distance bottom surface 1.8mm, upper limb and bottom surface angulation 90 degree, and tilts 20 degree slightly toward outside.Afterwards, surface is scribbled insulant, the copper wire of diameter 0.05mm is around with on the titanium aluminum vanadium alloy cylinder of internal diameter 1.03mm, high 3.1mm, wall thickness 0.1mm, and 600 circles, the Nd-Fe-B permanent magnet of one piece of diameter 1mm, high 3mm is placed in cylinder inside.Two ends and surrounding use with material titanium alloy sheet parcel, and forms a closed cylinder, external diameter 4.5mm, high 3.3mm, form the afterbody of oscillator, head and afterbody are weldingly connected, and around use medical grade rubber wraps up, and thickness is 0.5mm.
Embodiment 7
As shown in Figures 1 to 3, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, be made up of head 1 and afterbody 2, described head 1 is fixedly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in this afterbody 2;
Described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, two to be applicable to left ear and auris dextra respectively;
Suppress an entity titanium aluminum vanadium alloy oscillator head with mould, its shape is oval mesa-shaped, end face and bottom surface not parallel, end face is circular, diameter: 1.9mm, and surperficial hemispherical protuberance, height is 0.2mm.Bottom surface is oval, major axis: 3mm, minor axis: 2mm, end face upper limb distance bottom surface 0.7mm, end face lower edge distance bottom surface 1.8mm, upper limb and bottom surface angulation 90 degree, and tilts 20 degree slightly toward outside.Afterwards, surface is scribbled insulant, the copper wire of diameter 0.1mm is around with on the titanium aluminum vanadium alloy cylinder of internal diameter 1.03mm, high 3.1mm, wall thickness 0.1mm, and 500 circles, the Nd-Fe-B permanent magnet of one piece of diameter 1mm, high 3mm is placed in cylinder inside.Two ends and surrounding use with material titanium alloy sheet parcel, form a closed cylinder, external diameter 4mm, high 3.3mm.Form the afterbody of oscillator.Head and afterbody are weldingly connected, and use medical grade rubber parcel around, thickness is 0.5mm.
Embodiment 8
As shown in Figures 1 to 3, internally-fixed Middle Ear Implant oeil de boeuf oscillator of the present invention, be made up of head 1 and afterbody 2, described head 1 is fixedly connected with afterbody 2, is provided with electromagnetic induction vibrating elements 3 in this afterbody 2;
Described internally-fixed Middle Ear Implant oeil de boeuf oscillator is divided into left and right two, two to be applicable to left ear and auris dextra respectively;
Suppress an entity titanium aluminum vanadium alloy oscillator head with mould, its shape is oval mesa-shaped, end face and bottom surface not parallel, end face is circular, diameter: 1.9mm, and surperficial hemispherical protuberance, height is 0.2mm.Bottom surface is oval, major axis: 3mm, minor axis: 2mm, end face upper limb distance bottom surface 0.7mm, end face lower edge distance bottom surface 1.8mm, upper limb and bottom surface angulation 90 degree, and tilts 20 degree slightly toward outside.Afterwards, surface is scribbled insulant, the copper wire of diameter 0.05mm is around with on the titanium aluminum vanadium alloy cylinder of internal diameter 1.03mm, high 3.3mm, wall thickness 0.1mm, and the Nd-Fe-B permanent magnet of one piece of diameter 1mm, high 3.2mm is placed in cylinder inside.Two ends and surrounding use with material titanium alloy sheet parcel, form a closed cylinder, external diameter 4mm, high 3.5mm.Form the afterbody of oscillator.Head and afterbody are weldingly connected, and use medical elastic material parcel around, thickness is 0.5mm.
The Middle Ear Implant oeil de boeuf oscillator that above-described embodiment obtains is through on probation, result shows, described oscillator, due to the afterbody that it is specially designed titanium alloy head with reference to human body temporal bone REN internal structure and includes electromagnetic induction vibrating elements, and is formed by medical elastic material parcel; When operation on probation is placed, its head can directly be positioned in REN, is convenient to fix, and obviously can simplify operation process, reduces operation risk; In addition, described induction vibrating elements is positioned at outside REN, and volume is large, improves oscillation intensity, effectively can improve the frequency response of oscillator.
Claims (8)
1. an internally-fixed Middle Ear Implant oeil de boeuf oscillator, it is characterized in that, be made up of head (1) and afterbody (2), described head (1) and afterbody (2) are weldingly connected, and are provided with electromagnetic induction vibrating elements (3) in afterbody (2); Prepared by following method:
(1) titanium alloy head is prepared
Adopt titanium alloy material to make the head of the oscillator of oval mesa-shaped entity, its end face is not parallel with bottom surface, and end face be circular, and surperficial hemispherical is swelled, and bottom surface is ellipse; Medical elastic material is adopted to wrap up around the round platform of this head;
In described head (1), end face is circular, and diameter is 1.9 ± 0.8mm, surperficial hemispherical protuberance, and height is 0.2mm; Its bottom surface is oval, and major axis is 3.0 ± 1.0mm, and minor axis is 2.0 ± 0.8mm, end face upper limb is 0.7 ± 0.3mm apart from bottom surface distance, end face lower edge is 1.8 ± 0.5mm apart from bottom surface distance, and the angle of upper limb and bottom surface is 90 ± 5 °, and tilts 20 ± 10 ° laterally according to the physical location of round window membrane;
2) afterbody of preparation containing electromagnetic induction vibrating elements
Copper is adopted to make conductive coil, with dimaond die, be drawn into copper wire, its surface-coated insulant, then, above-mentioned copper wire is evenly around on titanium alloy cylinder, places one piece of cylindhca permanent magnet in cylinder, two ends and around wrap up with titanium alloy sheet, form a closed cylinder, this cylindrical end face is connected with titanium alloy head bottom surface and welds, and draws copper wire the two poles of the earth, connecting signal source in bottom surface central authorities or side; Head and afterbody are weldingly connected, and use medical grade rubber parcel around;
Described afterbody (2) is cylinder type, and its external diameter is 4.0 ± 1.0mm, high 3.2-3.5mm;
Described electromagnetic induction vibrating elements (3) adopts copper material to make conductive coil, with dimaond die, be drawn into copper wire, its surface-coated insulant, be around on titanium alloy cylinder, one piece of cylindhca permanent magnet is placed in cylinder, by two ends and around wrap up with titanium alloy sheet, form a closed cylinder, this cylinder external diameter is 4.0 ± 1.0mm, is highly 3 ± 0.5mm, and end face is connected with the bottom surface of titanium alloy head (1) and welds, and draw copper wire the two poles of the earth, connecting signal source in bottom surface central authorities or side.
2., by internally-fixed Middle Ear Implant oeil de boeuf oscillator according to claim 1, it is characterized in that, described middle ear oeil de boeuf oscillator is divided into left and right two, and two is applicable to left ear and auris dextra respectively.
3., by internally-fixed Middle Ear Implant oeil de boeuf oscillator according to claim 1, it is characterized in that described head (1) outer wrapping medical elastic material, its thickness is 0.5mm.
4. by internally-fixed Middle Ear Implant oeil de boeuf oscillator according to claim 1, it is characterized in that, described afterbody (2) is made by the two ends of induction vibrating elements (3) within it and side wrap titanium aluminum vanadium alloy material.
5. by internally-fixed Middle Ear Implant oeil de boeuf oscillator according to claim 1, it is characterized in that, described electromagnetic induction vibrating elements (3) is a titanium alloy cylinder, its inner placement cylindhca permanent magnet, outside winding copper wire.
6. by internally-fixed Middle Ear Implant oeil de boeuf oscillator according to claim 5, it is characterized in that, described induction vibrating elements outside is wound around copper wire, diameter 0.05-0.1mm, the thick 0.005mm of surface-coated insulant, uniform winding is 600 ± 200 circles on titanium alloy cylinder.
7., by internally-fixed Middle Ear Implant oeil de boeuf oscillator according to claim 5, it is characterized in that, described permanent magnet is Nd-Fe-B permanent magnet, and its diameter is 1mm, and height is 3mm.
8. internally-fixed Middle Ear Implant oeil de boeuf oscillator according to claim 5, is characterized in that, described its internal diameter of titanium alloy cylinder is greater than interior permanent magnets diameter, is 1.03 ± 0.01mm, wall thickness 0.1mm, and it is tall and big in inner permanent magnetic height, is 3.1mm.
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| CN101690266A (en) * | 2007-05-11 | 2010-03-31 | 森深医药有限公司 | Middle ear implant |
| CN102598714A (en) * | 2009-06-22 | 2012-07-18 | 音束有限责任公司 | Round window coupled hearing systems and methods |
| CN102598713A (en) * | 2009-06-18 | 2012-07-18 | 音束有限责任公司 | Eardrum implantable devices for hearing systems and methods |
| CN102696243A (en) * | 2009-10-01 | 2012-09-26 | 奥托特罗尼克斯有限责任公司 | Improved middle ear implant and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100859979B1 (en) * | 2007-07-20 | 2008-09-25 | 경북대학교 산학협력단 | Implantable middle ear hearing device with tube type vibration transducer |
| US20090306458A1 (en) * | 2008-03-31 | 2009-12-10 | Cochlear Limited | Direct acoustic cochlear stimulator for round window access |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690266A (en) * | 2007-05-11 | 2010-03-31 | 森深医药有限公司 | Middle ear implant |
| CN102598713A (en) * | 2009-06-18 | 2012-07-18 | 音束有限责任公司 | Eardrum implantable devices for hearing systems and methods |
| CN102598714A (en) * | 2009-06-22 | 2012-07-18 | 音束有限责任公司 | Round window coupled hearing systems and methods |
| CN102696243A (en) * | 2009-10-01 | 2012-09-26 | 奥托特罗尼克斯有限责任公司 | Improved middle ear implant and method |
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