CN201370875Y - Artificial lacrimonasal duct - Google Patents
Artificial lacrimonasal duct Download PDFInfo
- Publication number
- CN201370875Y CN201370875Y CN200820208980U CN200820208980U CN201370875Y CN 201370875 Y CN201370875 Y CN 201370875Y CN 200820208980 U CN200820208980 U CN 200820208980U CN 200820208980 U CN200820208980 U CN 200820208980U CN 201370875 Y CN201370875 Y CN 201370875Y
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- China
- Prior art keywords
- drainage tube
- pipe
- artificial
- artificial nasolacrimal
- lobe
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Abstract
The utility model provides an artificial lacrimonasal duct, which belongs to the field of medical technology, solves the problems that the prior artificial lacrimonasal duct easily causes the recurrence of disease or causes other diseases, and comprises a drainage tube. A push pipe and a plurality of tunnel flaps are arranged on the upper end of the drainage tube, and the tunnel flaps are made of strip-type sheeting; and the push pipe, the tunnel flaps and the drainage tube are mutually connected to form an integral structure, the tunnel flaps are evenly distributed in circumferential direction and bend outwards to form the shape of a lantern, and a gap is arranged between two adjacent tunnel flaps. The artificial lacrimonasal duct eradicates the condition that the parts with a split structure separate and fall down through the integral structure, and has the advantages of good fastness, high safety factor and long service life.
Description
Technical field
This utility model belongs to medicine technology field, relates to a kind of treatment of ophthalmic diseases, particularly a kind of artificial nasolacrimal canal.
Background technology
Obstruction of naso lacrimal duct and chronic dacryocystitis are common ocular disease, mainly treat with lacrimal passage spy art and nasal cavity lachrymal sac anastomosis at present.It is little, simple to operate that lacrimal passage is visited the art damage, but the long-term effect instability, and the relapse rate height is not suitable for the treatment of chronic dacryocystitis especially, makes its application be subjected to certain limitation.Dacryocystorhinostomy be treat best results in the method for obstruction of naso lacrimal duct and chronic dacryocystitis at present, success rate is high.But operation is complicated, and intraoperative hemorrhage is many, and operating time is long, and the operation rear face leaves cicatrix, can not undergo surgery because of surgical contraindication sometimes; Operation has simultaneously changed the original anatomical passageway of lacrimal passage, in case postoperative anastomotic stoma fiber forms cicatrix or ossified, can cause anastomotic stoma to block so that cause that lacrimal passage blocks again.
At the deficiency of existing operation method, so there have the people to design a kind of surgical injury to be little and do not change the artificial nasolacrimal canal of the original anatomical passageway of lacrimal passage.Existing cup-shaped artificial nasolacrimal canal, connect by the less drainage tube of bigger fixed part of circumscribed circle diameter and caliber and to constitute, described fixed part is on average being split into tube wall four arm lobes on drainage tube top, each pipe lobe is bent to form base segment, stage casing, top section, and fixed part pipe lobe base segment is connected with drainage tube, and the section of top is shunk in an annulus, form a top pore and the setting form.Though it is little that the artificial nasolacrimal canal of this structure may have a relative surgical injury, but because the top section is shunk in being fixed on annulus, this syndeton may cause the annulus separation that comes off for a long time in human body, thereby causes the recurrence of disease or produce other diseases, exists very big potential safety hazard.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of integral structure, artificial nasolacrimal canal that safety coefficient is high.
The purpose of this utility model can realize by following technical proposal: a kind of artificial nasolacrimal canal, comprise drainage tube, it is characterized in that, the upper end of described drainage tube is provided with a push pipe and some pipe lobes, above-mentioned pipe lobe is made by the bar shaped sheet material, push pipe, pipe lobe, drainage tube are connected to integral structure, and each manages lobe along the circumferential direction uniform distribution and the outwardly-bent lantern shape that surrounds, and have breach between two adjacent pipe lobes.
The pipe lobe surrounds diameter of a circle from extremely maximum to push pipe direction natural expansion with the drainage tube connecting place, and then transition is connected on the push pipe.Open pipe lobe is used in operation artificial nasolacrimal canal fixedly in the lachrymal sac, and the end of drainage tube links to each other with nasal tube, so tear can flow in the artificial nasolacrimal canal from the breach between two pipe lobes, and then flows into nasal tube, realizes the mediation lacrimal passage.Artificial nasolacrimal canal is installed in the operation of lacrimal passage in reality, at first the pipe lobe with artificial nasolacrimal canal closes up to close with the drainage tube diameter, and then puts in place by the guiding tube guiding, after guiding puts in place, the pipe lobe opens again and fixedly collects tear in the lachrymal sac, at last guiding tube is got the place.
Owing to this artificial nasolacrimal duct adopts integral structure, separate situation about dropping so stopped part, increased fastness simultaneously and improved safety coefficient and service life.
In above-mentioned artificial nasolacrimal canal, the bight of described push pipe port is circular arc.The corner of circular arc can increase the area that artificial nasolacrimal canal and lachrymal sac are in contact with one another, thereby reduces patient's misery greatly, can reduce the possibility of other diseases of initiation simultaneously.
In above-mentioned artificial nasolacrimal canal, the lower surface of described drainage tube is for facing directly.Face that artificial nasolacrimal canal is guided is more convenient directly in guiding tube, can shorten the time of operation.
In above-mentioned artificial nasolacrimal canal, the close port side-walls of described drainage tube along the circumferential direction uniform distribution is provided with several apertures.
Preferred as in the above-mentioned scheme, described little hole number is 1～6.
In above-mentioned artificial nasolacrimal canal, described drainage tube, push pipe, pipe lobe all adopt medical macromolecular materials to make.
Compared with prior art, separate situation about dropping, increased fastness simultaneously and improved safety coefficient and service life so this artificial nasolacrimal duct adopts integral structure to stop part.
Description of drawings
Fig. 1 is the sectional structure sketch map of this artificial nasolacrimal duct.
Fig. 2 is the vertical view of this artificial nasolacrimal duct.
Among the figure, 1, drainage tube; 2, push pipe; 2a, arc surface; 3, pipe lobe; 4, aperture; 5, breach.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but this utility model be not limited to these embodiment.
As depicted in figs. 1 and 2, this artificial nasolacrimal duct, comprise drainage tube 1, one end of drainage tube 1 is provided with a push pipe 2 and four pipe lobes 3, pipe lobe 3 is made by the bar shaped sheet material, push pipe 2, pipe lobe 3, drainage tube 1 are connected to integral structure, and each manages lobe 3 along the circumferential direction uniform distribution and the outwardly-bent lantern shape that surrounds, and are provided with breach 5 between two adjacent pipe lobes 3.
The port of described push pipe 2 is circular arc, is arc surface 2a.Arc surface 2a is bigger than the area of the contact of vertical, so circular arc push pipe 2 ports have increased the area that artificial nasolacrimal canal and lachrymal sac are in contact with one another greatly, thereby reduces patient's misery greatly, can reduce the possibility of other diseases of initiation simultaneously.The lower surface of drainage tube 1 for face directly and drainage tube 1 near the port sidewall on along the circumferential direction uniform distribution be provided with four apertures 4.
Specific embodiment described herein only is that this utility model spirit is illustrated.This utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used drainage tube 1 morely; Push pipe 2; Arc surface 2a; Pipe lobe 3; Aperture 4; Breach 5 terms such as grade, but do not get rid of the probability of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with this utility model spirit.
Claims (6)
1, a kind of artificial nasolacrimal canal, comprise drainage tube (1), it is characterized in that, the upper end of described drainage tube (1) is provided with a push pipe (2) and some pipe lobes (3), above-mentioned pipe lobe (3) is made by the bar shaped sheet material, push pipe (2), pipe lobe (3), drainage tube (1) are connected to integral structure, and each manages lobe (3) along the circumferential direction uniform distribution and the outwardly-bent lantern shape that surrounds, and have breach (5) between adjacent two pipe lobes (3).
2, artificial nasolacrimal canal according to claim 1 is characterized in that, the bight of described push pipe (2) port is circular arc.
3, artificial nasolacrimal canal according to claim 1 is characterized in that, the lower surface of described drainage tube (1) is for facing directly.
According to claim 1 or 3 described artificial nasolacrimal canals, it is characterized in that 4, the close port side-walls of described drainage tube (1) along the circumferential direction uniform distribution is provided with several apertures (4).
5, artificial nasolacrimal canal according to claim 4 is characterized in that, described aperture (4) quantity is 1～6.
According to claim 1 or 2 or 3 described artificial nasolacrimal canals, it is characterized in that 6, described drainage tube (1), push pipe (2), pipe lobe (3) all adopt medical macromolecular materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820208980U CN201370875Y (en) | 2008-12-30 | 2008-12-30 | Artificial lacrimonasal duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820208980U CN201370875Y (en) | 2008-12-30 | 2008-12-30 | Artificial lacrimonasal duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201370875Y true CN201370875Y (en) | 2009-12-30 |
Family
ID=41496954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820208980U Ceased CN201370875Y (en) | 2008-12-30 | 2008-12-30 | Artificial lacrimonasal duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201370875Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101803963A (en) * | 2010-03-19 | 2010-08-18 | 王维文 | Artificial nasolacrimal canal |
| CN101919748A (en) * | 2010-09-27 | 2010-12-22 | 贺鹏举 | Eye-nose communication tear diversion device |
| CN103405307A (en) * | 2013-08-30 | 2013-11-27 | 潘东艳 | Catheter for lacrimal passage |
| CN103933654A (en) * | 2014-04-16 | 2014-07-23 | 南京微创医学科技有限公司 | Self-expandable plastic support and placement device |
| CN111936092A (en) * | 2018-04-03 | 2020-11-13 | 林丁 | Remaining needle tube system for eye drug administration |
-
2008
- 2008-12-30 CN CN200820208980U patent/CN201370875Y/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101803963A (en) * | 2010-03-19 | 2010-08-18 | 王维文 | Artificial nasolacrimal canal |
| CN101919748A (en) * | 2010-09-27 | 2010-12-22 | 贺鹏举 | Eye-nose communication tear diversion device |
| CN101919748B (en) * | 2010-09-27 | 2012-05-23 | 贺鹏举 | Eye-nose communication tear diversion device |
| CN103405307A (en) * | 2013-08-30 | 2013-11-27 | 潘东艳 | Catheter for lacrimal passage |
| CN103933654A (en) * | 2014-04-16 | 2014-07-23 | 南京微创医学科技有限公司 | Self-expandable plastic support and placement device |
| CN111936092A (en) * | 2018-04-03 | 2020-11-13 | 林丁 | Remaining needle tube system for eye drug administration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20110110 Decision number of declaring invalidation: 15913 Granted publication date: 20091230 |