CN2489747Y - Bud-shape drain type artificial lacrimal duct - Google Patents
Bud-shape drain type artificial lacrimal duct Download PDFInfo
- Publication number
- CN2489747Y CN2489747Y CN 01249304 CN01249304U CN2489747Y CN 2489747 Y CN2489747 Y CN 2489747Y CN 01249304 CN01249304 CN 01249304 CN 01249304 U CN01249304 U CN 01249304U CN 2489747 Y CN2489747 Y CN 2489747Y
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- China
- Prior art keywords
- tube
- lacrimal
- type artificial
- shaped
- bud
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model provides a bud-shaped drain type artificial lacrimal duct, which is characterized in that the supporting part of a lacrimal ductile is communicated with a saccule-shaped fixing body and a drainage tube. The end of the drainage tube is an inclined cutting-shaped opening, and the tub wall with diameter between 1.5 millimeters to 2.5 millimeters is right above the point of the inclined cutting-shaped opening and whose top is opened with a small hole; one section of tube of the supporting part of the lacrimal ductile is a contracted taper-shaped tube; and the joint between the taper-shaped tube and the saccule-shaped fixing body forms a base end of the supporting part of the lacrimal ductile. Moreover, the axial tangent of the taper-shaped tube which is at the base end of the supporting part of the lacrimal ductile forms an angle from 100 DEG to 120 DEG with the axes of the drainage tube. The supporting part of the lacrimal ductile and the saccule-shaped fixing body are all molded and formed by the tube wall at the middle upper part of the drainage tube. Besides, the bud-shaped drain type artificial lacrimal duct is made of medical intermediate soft composite material. Apart from promising simple operation, convenient mounting and little operation wound as well as comparatively perfect longtime curing effect, the utility model has the advantages of simple structure, low cost and easy popularization and using.
Description
Technical field: this utility model relates to medical science ophthalmic diseases interventional operation equipment, relates in particular to the innovation of artificial tear duct structure.
Background technology: obstruction of lacrimal canaliculus is common intractable lacrimal passage disease, mainly treats with lacrimal passage spy art and tear stains intubate at present.It is little, simple to operate that lacrimal passage is visited the art damage, but the long-term effect instability, the relapse rate height, its application is subjected to certain restriction.The tear stains intubate is to treat the topmost method of obstruction of lacrimal canaliculus at present, but, still there is not at present the artificial tear duct that is specifically designed to obstruction of lacrimal canaliculus, clinically, the general lumbar anesthesia pipe that adopts carries out the treatment of obstruction of lacrimal canaliculus, and this method must be fixed on the lacrimal ductule stay pipe face, and this causes dacryocanalicular tearing easily, and long-term the placement is easy to generate granulation tissue and infects event and can not be placed on for a long time in the lacrimal passage; For above-mentioned reasons, pull out stay pipe after, lacrimal ductule is secondary stricture more easily, does not reach therapeutic effect.
Summary of the invention: this utility model is exactly the deficiency at existing operation method, and it is little to design a kind of surgical injury, and the special-purpose bud shape tubulation type artificial tear duct of better long-term treatment effect is arranged.
For achieving the above object, this utility model bud shape tubulation type artificial tear duct is characterized in that: described lacrimal ductule support portion is connected with drainage tube by a sacculus shape fixed body.
The end of described drainage tube is a bevel shape opening, and 2mm ± 0.5mm also has aperture on interior tube wall above the cusp of bevel shape opening is straight; Described lacrimal ductule support portion is the conial tube that one section uniform diameter is shunk, and conial tube major part and sacculus shape fixed body connection form the cardinal extremity of lacrimal ductule support portion.
The angle that has 110 ° ± 10 ° between the axial tangent line of cardinal extremity place conial tube of described lacrimal ductule support portion and drainage tube axis.
Described lacrimal ductule support portion and sacculus shape fixed body all are that drainage tube middle and upper part tube wall forms through molding processing and setting.
Described bud shape tubulation type artificial tear duct is to adopt the medical middle soft synthetic material of isogonic to make.
The sacculus shape fixed part of this utility model bud shape tubulation type artificial tear duct has better elastic, being convenient to draw in when operation becomes thin tube-like and guides, installs, and enter natural expansion behind the lachrymal sac, and location voluntarily, thereby simple to operate, easy for installation, greatly reduce operating difficulty and wound; The tapering tubule high resilience of lacrimal ductule support portion, its microcephaly's opening can easily be inserted in the lacrimal ductule and to be supported and expand and open the lacrimal ductule that is blocked, and can adapt to the variation of lacrimal ductule size, thereby avoid tearing lacrimal ductule; The drainage tube softness can be placed in the nasolacrimal duct for a long time, plays the mediation nasolacrimal duct, the effect of drain tear.This utility model can improve the quality of obstruction of lacrimal canaliculus corrective surgery treatment being a significant progress aspect the treatment obstruction of lacrimal canaliculus in a word, enlarges treatment indication scope, and it is simple in structure, with low cost, easy to utilize, have good economy and social benefit.
Description of drawings: the utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the main cutaway view of this utility model embodiment.
Fig. 2 is the vertical view of this utility model embodiment.
The specific embodiment: as shown in Figure 1, 2, this utility model bud shape tubulation type artificial tear duct, described lacrimal ductule support portion is the conial tube 1 that one section uniform diameter is shunk, and is connected with drainage tube 3 by a sacculus shape fixed body 2.
The end of described drainage tube 3 is a bevel shape opening 4, also has aperture 5 apart from a=2mm ± 0.5mm on interior tube wall above the cusp of bevel shape opening 4 is straight; The major part of described lacrimal ductule support portion conial tube 1 and sacculus shape fixed body 2 connections form the cardinal extremity 1-2 of lacrimal ductule support portion.
The angle α that has 110 ° ± 10 ° between the axial tangent line of cardinal extremity 1-2 place conial tube of described lacrimal ductule support portion and drainage tube axis.
Described lacrimal ductule support portion 1 all is that drainage tube 3 middle and upper part tube walls form through molding processing and setting with sacculus shape fixed body 2.
Described bud shape tubulation type artificial tear duct is to adopt the medical middle soft synthetic material of isogonic to make.
Present accompanying drawings operational approach of the present utility model: when this utility model bud shape tubulation type artificial tear duct was installed, under the directed forces effect, sacculus shape fixed part 2 gatherings with whole artificial tear duct earlier became thin tube-like, put in place with convenient guiding; After guiding, being in place, fixed part 2 recovers to become the sacculus shape of diastole and has enough big diameter, to be fixed in the lachrymal sac, simultaneously, both supported the support portion tapering tubule 1 on top and opened lacrimal ductule to support, to expand, also keep its drainage tube 3 that links to each other down to be fixed in the nasolacrimal duct, have the function of mediation lacrimal passage and drain tear, thereby realize therapeutical effect obstruction of lacrimal canaliculus.
Claims (5)
1, a kind of bud shape tubulation type artificial tear duct comprises the lacrimal ductule support portion, it is characterized in that: described lacrimal ductule support portion is connected with drainage tube by a sacculus shape fixed body.
2, bud shape tubulation type artificial tear duct as claimed in claim 1, it is characterized in that: the end of described drainage tube is a bevel shape opening, 2mm ± 0.5mm also has aperture on interior tube wall above the cusp of bevel shape opening is straight; Described lacrimal ductule support portion is the conial tube that one section uniform diameter is shunk, and conial tube major part and sacculus shape fixed body connection form the cardinal extremity of lacrimal ductule support portion.
3, bud shape tubulation type artificial tear duct as claimed in claim 2 is characterized in that: the angle that has 110 ° ± 10 ° between the axial tangent line of cardinal extremity place conial tube of described lacrimal ductule support portion and drainage tube axis.
4, bud shape tubulation type artificial tear duct as claimed in claim 1 or 2 is characterized in that: described lacrimal ductule support portion and sacculus shape fixed body all are that drainage tube middle and upper part tube wall forms through molding processing and setting.
5, bud shape tubulation type artificial tear duct as claimed in claim 1 or 2 is characterized in that: described bud shape tubulation type artificial tear duct is to adopt the medical middle soft synthetic material of isogonic to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01249304 CN2489747Y (en) | 2001-07-18 | 2001-07-18 | Bud-shape drain type artificial lacrimal duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01249304 CN2489747Y (en) | 2001-07-18 | 2001-07-18 | Bud-shape drain type artificial lacrimal duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2489747Y true CN2489747Y (en) | 2002-05-08 |
Family
ID=33659740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01249304 Expired - Fee Related CN2489747Y (en) | 2001-07-18 | 2001-07-18 | Bud-shape drain type artificial lacrimal duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2489747Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111821098A (en) * | 2020-08-20 | 2020-10-27 | 蒋正轩 | Lacrimal passage cannula |
-
2001
- 2001-07-18 CN CN 01249304 patent/CN2489747Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111821098A (en) * | 2020-08-20 | 2020-10-27 | 蒋正轩 | Lacrimal passage cannula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |