CN100387316C - Meatus acusticus dilator - Google Patents
Meatus acusticus dilator Download PDFInfo
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- CN100387316C CN100387316C CNB021347662A CN02134766A CN100387316C CN 100387316 C CN100387316 C CN 100387316C CN B021347662 A CNB021347662 A CN B021347662A CN 02134766 A CN02134766 A CN 02134766A CN 100387316 C CN100387316 C CN 100387316C
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- dilator
- meatus
- niti
- meatus acusticus
- cylindrical tube
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Abstract
The present invention relates to an ear canal bracket which comprises a metal wire net and a silicium adhesive film. Because the present invention uses the metal wire net as a framework to be covered in the silicium adhesive film, and particularly uses the tubular structure of a trapezoid cylinder, which is similar to the shape of an ear canal, and the curved surface on the head or the tail of the ear canal bracket is closed, the present invention can effectively avoid the problems that the displacement and the falling down after the ear canal bracket is implanted, or scars on both ends of the ear canal bracket are hyperplastic. Therefore, the present invention is suitable for treating narrow ear canals or locking ear canals, which are caused by various reasons, and has the obvious advantages of simple structure, easy implantation, convenient taking out, good flexibility, safety and reliability.
Description
Technical field
The present invention relates to a kind of medical stent, particularly prevent and treat the narrow meatus acusticus dilator of auditory meatus.
Background technology
In the prior art, the niti-shaped memorial alloy medical stent is widely used in esophageal stricture, biliary tract stenosis, urethral stricture, tracheal stenosis, fields such as angiostenosis, Wang Geping doctor of Beijing Jishuitan Hospital etc. and the Guo Jinfang of Beijing Non-Ferrous Metal Research General Academy professor, professors Zhu Ming etc. disclose a kind of niti-shaped memorial alloy external auditory meatus support for the treatment of the stricture of external auditory mea tus locking of burn back the 115th page of the 32nd volume second phase of " Chinese ear,nose ﹠ throat magazine " April in 1999, it is characterized by grid straight tube shape, its phase transition temperature is 30 ℃～33 ℃, the webmaster diameter is 6～8mm, length is 12～15mm, the grid filament diameter is 0.2mm, support is divided into two types on bare bracket and outer attached pellosil support, successfully the niti-shaped memorial alloy medical stent is used for the treatment of stricture of external auditory mea tus and has obtained good curative effect.But in clinical practical application, because grid straight tube shape external auditory meatus support does not meet the physiological requirement of auditory meatus, exist the external auditory meatus support easily to be shifted, to come off, particularly the people to cicatrix body constitution easily stimulates scar hyperplasia at the two ends of grid straight tube shape external auditory meatus support.
Summary of the invention
The objective of the invention is to provide a kind of novel meatus acusticus dilator, it not only meets the physiological requirement of auditory meatus, and the two ends that can overcome grid straight tube shape external auditory meatus support effectively easily stimulate the shortcoming of scar hyperplasia, be not only applicable to the treatment of the stricture of external auditory mea tus locking that causes because of burn, and after being applicable to various otology operations, the particularly narrow treatment of the auditory meatus that causes behind the operation on the middle ear.
The object of the present invention is achieved like this:
Meatus acusticus dilator comprises metal gauze and pellosil, it is characterized in that pellosil is attached to forming the trapezoidal cylindrical tube structure similar to ear canal shapes on the metal gauze.
---the metal gauze of above-mentioned meatus acusticus dilator is with the grid duct shape structure of niti-shaped memorial alloy silk braiding or with the grid duct shape structure of niti-shaped memorial alloy light-wall pipe through laser engraving.Through the typing heat treatment for the geometry set as: the trapezoidal cylinder tube shape structure that trapezoidal cylindrical tube structure, two ends band arc close up, two ends for the flat trapezoidal cylinder tube shape structure that closes up etc.
---the head or the afterbody of above-mentioned meatus acusticus dilator can have curved surface to close up.
---the metal gauze of above-mentioned meatus acusticus dilator also can be made with other elastomeric material.
---the pellosil of above-mentioned meatus acusticus dilator is used the medical silica-gel manufacturing usually, also can make with other flexible high molecular material, as polyamine fat or politef.
---the recovery temperature of above-mentioned niti-shaped memorial alloy is between 15 ℃～35 ℃, and the diameter of shape-memory alloy wire is between 0.001～0.7mm, and the thickness of niti-shaped memorial alloy light-wall pipe is between 0.001～0.7mm.
The present invention's meatus acusticus dilator is owing to adopted metal gauze to be coated in the pellosil as skeleton, particularly adopted the trapezoidal cylindrical tube structure similar to ear canal shapes, and close up at the curved surface of the head of meatus acusticus dilator or afterbody, avoided effectively after meatus acusticus dilator is implanted displacement, come off and in the problem of the two ends of meatus acusticus dilator scar hyperplasias, be applicable to the treatment of the narrow or atresia auris of auditory meatus that a variety of causes causes.Has obvious advantage simple in structure, that implantation is easy, convenient to remove, pliability is good, safe and reliable.
Description of drawings
Concrete structure principle of the present invention and operation principle are provided by following embodiment and accompanying drawing.
The structural representation of Fig. 1 the present invention's trapezoidal cylindrical tube meatus acusticus dilator.
The A-A cutaway view of Fig. 2 Fig. 1.
The structural representation of the trapezoidal cylindrical tube meatus acusticus dilator that Fig. 3 the present invention's two ends band arc closes up.
The B-B cutaway view of Fig. 4 Fig. 3.
Fig. 5 the present invention's two ends are the structural representation of the flat trapezoidal cylindrical tube meatus acusticus dilator that closes up.
The C-C cutaway view of Fig. 6 Fig. 5.
The fundamental diagram of Fig. 7 the present invention's meatus acusticus dilator.
1 is metal gauze among the above-mentioned figure, and 2 is pellosil, and 3 is the head of meatus acusticus dilator, and 4 is the afterbody of meatus acusticus dilator, and 5 are the present invention's meatus acusticus dilator, and 6 is tissue.
The specific embodiment
Adopting recovery temperature is that 33 ℃, diameter are that the niti-shaped memorial alloy silk of 0.25mm is woven into trapezoidal cylindrical tube network, and the heat treatment of finalizing the design in mould has promptly obtained the metal gauze 1 of the present invention's meatus acusticus dilator; In specific purpose tool, this metal gauze 1 is covered pellosil 2 then, promptly obtained the present invention's meatus acusticus dilator 5.
Adopting recovery temperature is that 33 ℃, thickness are that the niti-shaped memorial alloy light-wall pipe of 0.25mm becomes the cylindrical tube network through laser engraving, the heat treatment of in mould, finalizing the design, make it the trapezoidal cylindrical tube network that is shaped as of more than recovery temperature (as 37 ℃), after the polishing, promptly obtained the metal gauze 1 of the present invention's meatus acusticus dilator; In specific purpose tool, this metal gauze 1 is covered pellosil 2 then, promptly obtained the present invention's meatus acusticus dilator 5.
During clinical use, in cold water as 15 ℃, with the present invention's meatus acusticus dilator 5 compressions, with operation tweezers or other specific purpose tool it is delivered in the auditory meatus then, meatus acusticus dilator 5 recovery design shapes strut the auditory meatus narrow under the effect of body temperature.When implanting half a year to two year, after scar tissue is stable, with in the auditory meatus by the cold water cooling, make meatus acusticus dilator 5 deliquescing, can conveniently take out with tweezers or other specific purpose tool.
Claims (7)
1. meatus acusticus dilator, comprise trapezoidal cylindrical tube niti-shaped memorial alloy silk screen (1) and pellosil (2), it is characterized in that: pellosil (2) is gone up attached to trapezoidal cylindrical tube niti-shaped memorial alloy silk screen (1) and is formed the trapezoidal cylindrical tube structure similar to ear canal shapes.
2. meatus acusticus dilator according to claim 1 is characterized in that: described trapezoidal cylindrical tube niti-shaped memorial alloy silk screen (1) is the trapezoidal cylindrical tube network that trapezoidal cylindrical tube network that is woven into the niti-shaped memorial alloy silk or the cylindrical tube network that becomes through laser engraving with the niti-shaped memorial alloy light-wall pipe obtain through the typing heat treatment again.
3. meatus acusticus dilator according to claim 1 is characterized in that: head of described meatus acusticus dilator (3) or afterbody (4) have curved surface to close up.
4. meatus acusticus dilator according to claim 1 is characterized in that: the pellosil of described meatus acusticus dilator (2) is made with flexible high molecular material.
5. meatus acusticus dilator according to claim 4 is characterized in that: described flexible high molecular material is polyamine fat or politef.
6. meatus acusticus dilator according to claim 1 is characterized in that: the pellosil of described meatus acusticus dilator (2) is made with medical silica-gel.
7. meatus acusticus dilator according to claim 2, it is characterized in that: the recovery temperature of described niti-shaped memorial alloy is between 15 ℃～35 ℃, the diameter of shape-memory alloy wire is between 0.001～0.7mm, and the thickness of niti-shaped memorial alloy light-wall pipe is between 0.001～0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021347662A CN100387316C (en) | 2002-09-19 | 2002-09-19 | Meatus acusticus dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021347662A CN100387316C (en) | 2002-09-19 | 2002-09-19 | Meatus acusticus dilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1413741A CN1413741A (en) | 2003-04-30 |
| CN100387316C true CN100387316C (en) | 2008-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021347662A Expired - Fee Related CN100387316C (en) | 2002-09-19 | 2002-09-19 | Meatus acusticus dilator |
Country Status (1)
| Country | Link |
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| CN (1) | CN100387316C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861018B (en) * | 2006-06-08 | 2010-12-15 | 上海索康医用材料有限公司 | Combination ear supporter |
| CN101933853B (en) * | 2009-12-16 | 2013-05-08 | 中国人民解放军总医院 | External auditory canal model holder |
| CN111467100B (en) * | 2020-06-05 | 2023-04-18 | 哈尔滨工业大学 | Shape memory polymer external auditory canal bracket and preparation method and driving method thereof |
| CN112807152A (en) * | 2021-01-04 | 2021-05-18 | 山东百多安医疗器械股份有限公司 | Porous silicone rubber ear support with elastic recovery capability and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5466242A (en) * | 1994-02-02 | 1995-11-14 | Mori; Katsushi | Stent for biliary, urinary or vascular system |
| US5540713A (en) * | 1991-10-11 | 1996-07-30 | Angiomed Ag | Apparatus for widening a stenosis in a body cavity |
| CN2280525Y (en) * | 1996-12-16 | 1998-05-06 | 沈沛 | Supporting net tube for coating and medicine-applicating in cavity and tube |
| CN2302805Y (en) * | 1996-10-18 | 1999-01-06 | 杨仁杰 | Marmen esophague supporting frame |
| CN1300579A (en) * | 2001-02-12 | 2001-06-27 | 周星 | Artificial intracavity duct |
| CN1368390A (en) * | 2002-03-01 | 2002-09-11 | 迟放鲁 | Auditory tube supporting frame made of memory alloy and delivery system |
| CN2572990Y (en) * | 2002-09-19 | 2003-09-17 | 周星 | Auditory meatus rack |
-
2002
- 2002-09-19 CN CNB021347662A patent/CN100387316C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540713A (en) * | 1991-10-11 | 1996-07-30 | Angiomed Ag | Apparatus for widening a stenosis in a body cavity |
| US5466242A (en) * | 1994-02-02 | 1995-11-14 | Mori; Katsushi | Stent for biliary, urinary or vascular system |
| CN2302805Y (en) * | 1996-10-18 | 1999-01-06 | 杨仁杰 | Marmen esophague supporting frame |
| CN2280525Y (en) * | 1996-12-16 | 1998-05-06 | 沈沛 | Supporting net tube for coating and medicine-applicating in cavity and tube |
| CN1300579A (en) * | 2001-02-12 | 2001-06-27 | 周星 | Artificial intracavity duct |
| CN1368390A (en) * | 2002-03-01 | 2002-09-11 | 迟放鲁 | Auditory tube supporting frame made of memory alloy and delivery system |
| CN2572990Y (en) * | 2002-09-19 | 2003-09-17 | 周星 | Auditory meatus rack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1413741A (en) | 2003-04-30 |
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Effective date of registration: 20090213 Address after: A, Guangzhou international business incubator, Science City, Guangzhou economic and Technological Development Zone, Guangdong, A601 Patentee after: Guangzhou Dike Medical Equipment Co., Ltd. Address before: Room 12, building 19, 601 martyrs South Road, Guangdong, Guangzhou Patentee before: Zhou Xing |
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Owner name: GUANGDONG DICK MEDICAL DEVICES CO., LTD. Free format text: FORMER OWNER: ZHOU XING Effective date: 20090213 |
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Granted publication date: 20080514 Termination date: 20140919 |
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