CN203873916U - Ossicular chain prosthesis - Google Patents
Ossicular chain prosthesis Download PDFInfo
- Publication number
- CN203873916U CN203873916U CN201420239059.1U CN201420239059U CN203873916U CN 203873916 U CN203873916 U CN 203873916U CN 201420239059 U CN201420239059 U CN 201420239059U CN 203873916 U CN203873916 U CN 203873916U
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- CN
- China
- Prior art keywords
- ossicular chain
- thin slice
- petal
- tympanum
- chassis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an ossicular chain prosthesis. The ossicular chain prosthesis comprises a cylinder which is connected with a base plate, wherein the cylinder is composed of an inner pipe and an outer sleeve, the inner pipe is provided with fine scale marks and external threads, internal threads are arranged on the outer sleeve in a rotary and matched mode, the base plate is in the shape of a tympanic membrane, the lower end of the inner pipe is fixedly connected with the top end of the base plate in the shape of the tympanic membrane, and a cartilage membrane on the lower surface of the base plate in the shape of the tympanic membrane can be tightly connected with the tympanic membrane. By the adoption of the ossicular chain prosthesis, a more satisfactory audition recovering effect can be achieved for a patient who suffers from an ear disease, the ossicular chain prosthesis can be placed into the middle ear of the patient for a long time after being transplanted in the ear, and the stability is extremely high.
Description
Technical field
This utility model relates to a kind of ossicular chain prosthese, it is the ear bones prosthesis structure that a kind of people's ear clinical operation treatment otitis media, otosclerosis need be replaced, especially can, firm be connected stable with tympanum, head of stapes, and can regulate length to be applicable to two kinds of ossicular chain prostheses (full ossicular chain prosthese and part ossicular chain prosthese) of different ear patients.
Background technology
At present, applied ossicular chain borrowed structure form is more single clinically, and the chassis major part of its artificial auditory ossicle is all plane chassis, has very large diversity with the planform of tympanum.In addition, the end shape of current applied artificial auditory ossicle is simpler, is generally hollow cylindrical and flush end shape, with the defective tightness that is connected of head of stapes, has had a strong impact on the acoustic energy size of transmission sound to internal ear.Rebuild afterwards tympanum and recovered patient's audition although the artificial auditory ossicle that clinical practice version is single carries out reconstruction of ossicular chain, there is certain auditory rehabilitation, but DeGrain, stability is not fine, the ossicular chain of rebuilding is difficult to consistent with physiological status, and postoperatively there will be many hearing problems, for example, easily cause coming off, slide, misplacing etc. of ossicular chain prosthese after operation, thereby the desirable auditory rehabilitation of more difficult acquisition.
Utility model content
The purpose of this utility model is the defect existing for prior art, and a kind of ossicular chain prosthese is provided.Adopt this utility model, can make ear patient obtain more satisfied auditory rehabilitation effect, and ossicular chain prosthese after displacement can be engaged in people's middle ear chronically, there is good stability.For achieving the above object, design of the present utility model is:
Concerning middle ear reconstruction of ossicular chain, suitable artificial auditory ossicle tension force is very important to people's otoacoustic emission conduction.And the tension force of rigidity artificial auditory ossicle and its length have very large relation.When the length generation slight change of artificial auditory ossicle, i.e. the tension force generation minor variations of ossicular chain, the sound conduction characteristic of middle ear also can be different.Artificial auditory ossicle oversize or too short (overtension between bone and tympanum or little), all can reduce the transaudient function of people's ear.Artificial auditory ossicle is too short, and the tension force of generation is inadequate, and in different frequency section, the transmission of sound can be subject to certain impact.Artificial auditory ossicle is oversize, and the supertension of generation equally also can affect the transmission of sound.Therefore, it is very important designing adjustable artificial auditory ossicle, scale makes it in optimum length state (being most suitable tension force) accurately, so not only can meet different ear patients' needs, but also can make postoperative people's ear auditory rehabilitation reach the effect of a satisfaction.
In addition, tympanum contacts with head of stapes with part artificial auditory ossicle, contacting of artificial auditory ossicle chassis, and part artificial auditory ossicle entirely, also can directly affect the transmission sound of people's ear, thereby affect the recovery effects of the postoperative audition of people's ear.Be designed to full artificial auditory ossicle and the part artificial auditory ossicle on tympanum shape chassis, the cartilage sheet thin layer of 0.1 mm ~ 2.0 mm thickness be set below chassis, can be well with tympanum form compatible, to make artificial auditory ossicle have more in consistent manner and be connected with tympanum.Be designed to the part artificial auditory ossicle of petal-shaped end, internal layer arranges the cartilage thin slice of 0.1 mm ~ 2.0 mm thickness, can make itself and head of stapes form good carving closes and is connected, anti-skidding, the changing of the relative positions, thereby make the energy of middle ear generation of vibration reach as much as possible internal ear, to obtain better effects on hearing.
According to above-mentioned utility model design, this utility model adopts following technical proposals:
A kind of ossicular chain prosthese, comprises chassis of a cylinder connection, it is characterized in that: institute's cylinder is by one with meticulous graduation mark and externally threaded inner tube, and overcoat screws one and is with female trocar sheath to form; Described chassis is a tympanum shape chassis; The lower end of described inner tube is fixedly connected with the upper top on tympanum shape chassis, has below tympanum shape chassis one deck cartilage thin slice to be closely connected with tympanum.
The thickness of described cartilage thin slice is within the scope of 0.1mm-2mm.
The upper end of described trocar sheath is fixedly connected with a petal-shaped end, and a petal-shaped cartilage thin slice is housed in this petal-shaped end, and this petal-shaped cartilage thin slice can closely wrap up stapes footplate.
The thickness of described cartilage thin slice and petal-shaped cartilage thin slice is within the scope of 0.1mm-2mm.
This utility model compared with prior art, has following apparent substantive distinguishing features and technological progress:
This utility model is with tympanum shape chassis and petal-shaped end, and sound conduction performance is good, and stable connection, reliable, firm, is difficult for dislocation, applied widely.Screw and form cylinder by inner tube and trocar sheath, can in the time of operation, regulate certain length according to patient self special circumstances, to meet more ear patients' demand.
Brief description of the drawings
Fig. 1 part ossicular chain borrowed structure overall schematic;
The full ossicular chain borrowed structure of Fig. 2 overall schematic;
The screw shell structural representation of Fig. 3 ossicular chain prosthese;
The chassis structure schematic diagram of Fig. 4 ossicular chain prosthese;
The chassis structure details signal enlarged drawing of Fig. 5 ossicular chain prosthese;
The petal-shaped end schematic perspective view of Fig. 6 part ossicular chain prosthese;
Fig. 7 part ossicular chain of the present utility model prosthese schematic diagram;
Fig. 8 full ossicular chain prosthese schematic diagram of the present utility model.
Detailed description of the invention
Details are as follows by reference to the accompanying drawings for preferred embodiment of the present utility model:
Embodiment mono-:
Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 8, this ossicular chain prosthese is part ossicular chain prosthese, it comprises chassis of a cylinder connection, it is characterized in that: institute's cylinder is by one with meticulous graduation mark and externally threaded inner tube 4, and overcoat screws one and is with female trocar sheath 3 to form; Described chassis is a tympanum shape chassis 2; The lower end of described inner tube 4 is fixedly connected with the upper top on tympanum shape chassis 2, has below tympanum shape chassis 2 one deck cartilage thin slice 1 to be closely connected with tympanum.
Embodiment bis-:
This enforcement is basic identical with embodiment mono-, and special feature is: the thickness of described cartilage thin slice 1 is within the scope of 0.1mm-2mm.
Embodiment tri-:
Referring to Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, this enforcement is basic identical with embodiment mono-, special feature is: the upper end of described trocar sheath 3 is fixedly connected with a petal-shaped end 5, a petal-shaped cartilage thin slice 6 is housed in this petal-shaped end 5, and this petal-shaped cartilage thin slice 6 can closely wrap up stapes footplate.This ossicular chain prosthese is full ossicular chain prosthese.
Embodiment tetra-:
The present embodiment and embodiment tri-are basic identical, and special feature is: the thickness of described cartilage thin slice 1 and petal-shaped cartilage thin slice 6 is within the scope of 0.1mm-2mm.
Claims (4)
1. an ossicular chain prosthese, comprises chassis of a cylinder connection, it is characterized in that: institute's cylinder is by one with meticulous graduation mark and externally threaded inner tube (4), and overcoat screws one and is with female trocar sheath (3) to form; Described chassis is a tympanum shape chassis (2); The lower end of described inner tube (4) is fixedly connected with the upper top on tympanum shape chassis (2), has below tympanum shape chassis (2) one deck cartilage thin slice (1) to be closely connected with tympanum.
2. ossicular chain prosthese according to claim 1, is characterized in that: the thickness of described cartilage thin slice (1) is within the scope of 0.1mm-2mm.
3. ossicular chain prosthese according to claim 1, it is characterized in that: the upper end of described trocar sheath (3) is fixedly connected with a petal-shaped end (5), in this petal-shaped end (5), a petal-shaped cartilage thin slice (6) is housed, this petal-shaped cartilage thin slice (6) can closely wrap up stapes footplate.
4. ossicular chain prosthese according to claim 3, is characterized in that: the thickness of described cartilage thin slice (1) and petal-shaped cartilage thin slice (6) is within the scope of 0.1mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239059.1U CN203873916U (en) | 2014-05-12 | 2014-05-12 | Ossicular chain prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239059.1U CN203873916U (en) | 2014-05-12 | 2014-05-12 | Ossicular chain prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203873916U true CN203873916U (en) | 2014-10-15 |
Family
ID=51674474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239059.1U Expired - Fee Related CN203873916U (en) | 2014-05-12 | 2014-05-12 | Ossicular chain prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203873916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538002A (en) * | 2019-08-29 | 2019-12-06 | 中国医学科学院北京协和医院 | Artificial tympanic cavity |
| WO2022021713A1 (en) * | 2020-07-31 | 2022-02-03 | 黄建民 | Artificial titanium ossicle having cup-shaped top disc |
-
2014
- 2014-05-12 CN CN201420239059.1U patent/CN203873916U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538002A (en) * | 2019-08-29 | 2019-12-06 | 中国医学科学院北京协和医院 | Artificial tympanic cavity |
| CN110538002B (en) * | 2019-08-29 | 2022-02-01 | 中国医学科学院北京协和医院 | Artificial tympanic cavity |
| WO2022021713A1 (en) * | 2020-07-31 | 2022-02-03 | 黄建民 | Artificial titanium ossicle having cup-shaped top disc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20160512 |