CN2489748Y - Petal-shape artificial lacrimal duct - Google Patents
Petal-shape artificial lacrimal duct Download PDFInfo
- Publication number
- CN2489748Y CN2489748Y CN 01249305 CN01249305U CN2489748Y CN 2489748 Y CN2489748 Y CN 2489748Y CN 01249305 CN01249305 CN 01249305 CN 01249305 U CN01249305 U CN 01249305U CN 2489748 Y CN2489748 Y CN 2489748Y
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- CN
- China
- Prior art keywords
- petal
- tube
- drainage tube
- shaped artificial
- artificial nasolacrimal
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- Expired - Lifetime
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Abstract
The utility model provides a petal-shaped artificial lacrimal duct, which is formed by serially connecting a fixing part with circum-circle of comparatively large diameter and a drainage tube with comparatively small tube diameter. The end of the drainage tube is an inclined cutting-shaped opening, and the tub wall with the diameter between 1.5 mm to 2.5 mm and the right above the point of the inclined cutting-shaped opening is opened with a small hole; the tube wall of the upper part of the drainage tube is evenly cut into four tube petals, and each tube petal is bended into a base section and a top section, the drainage tube is connected with the base section of the tube petal at the fixing part and is formed. Whereas, the base section of the tube petal and the top section of the tube petal form an angle from 85 degrees to 75 degrees. Besides, the artificial nasolacrimal duct is made of medical intermediate soft composite materials. Apart from promising little operation wound and not changing the former anatomy channel of the tear duct, the utility model has the advantages of comparatively perfect treatment effect, simple structure, low cost and easy popularization and using as well as providing perfect prospect of economic and social benefits.
Description
Technical field: this utility model relates to medical science ophthalmic diseases interventional operation equipment, relates in particular to the improvement of artificial nasolacrimal canal structure.
Background technology: obstruction of naso lacrimal duct and chronic dacryocystitis are common ocular disease, at present mainly with lacrimal passage visit art, and nasal cavity lachrymal sac anastomosis treat.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 at present obstruction of naso lacrimal duct, and the method for chronic dacryocystitis in best results, the success rate height.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.
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, does not change the original anatomical passageway of lacrimal passage, and the special-purpose petal-shaped artificial nasolacrimal canal of better therapeutic effect is arranged.
For achieving the above object, this utility model petal-shaped artificial nasolacrimal canal is characterized in that: described petal-shaped artificial nasolacrimal canal is to be connected by the less drainage tube of bigger fixed part of circumscribed circle diameter and caliber to constitute.
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 fixed part is bent to form base segment and top section on drainage tube top tube wall on average being split into four arm lobes with each arm lobe, and wherein fixed part pipe lobe base segment is connected with drainage tube, and setting forms.
Described pipe lobe base segment pushes up the angle that section has 80 ° ± 5 ° with the pipe lobe.
Described petal-shaped artificial nasolacrimal canal is to adopt the medical middle soft synthetic material of isogonic to make.
The petal-shaped fixed part of this utility model artificial nasolacrimal canal has better elastic, being convenient to draw in when operation becomes thin tube-like and guides, installs, enter natural expansion behind the lachrymal sac, and location voluntarily, thereby it is simple to operate, easy for installation, must not change the original anatomical passageway of lacrimal passage, greatly reduce operating difficulty and wound rate, and eliminated postoperative scar and sequela with operation, do not have the operation taboo yet, enlarged the treatment subject range; The drainage tube softness can be placed in the nasolacrimal duct for a long time, plays the mediation nasolacrimal duct, and drain especially is adapted to the chronic dacryocystitis patient from the effect of the tear in the lachrymal sac, has improved the quality of operative treatment greatly.Thereby this utility model has significant progress aspect treatment obstruction of naso lacrimal duct and the chronic dacryocystitis, and simple in structure, with low cost, easy to utilize, has good economy and social benefit prospect.
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, the end of described drainage tube 1 is a bevel shape opening 2, also has aperture 3 apart from a=2mm ± 0.5mm on interior tube wall above the cusp of bevel shape opening is straight; Described fixed part is on average being split into tube wall four arm lobes on drainage tube top, and each arm lobe is bent to form a base segment 4-1 and a top section 4-2, and wherein fixed part pipe lobe base segment 4-1 is connected with drainage tube 1, and formalizes and form.
Described pipe lobe base segment 4-1 pushes up the angle α that section 4-2 has 80 ° ± 5 ° with the pipe lobe.
Described petal-shaped artificial nasolacrimal canal 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 petal-shaped artificial nasolacrimal canal was installed, earlier with whole artificial nasolacrimal canal pipe lobe 4-1,4-2 draws in became thin tube-like, put in place by the guide wire guiding; And after guiding, being in place, fixed part recovers to become open petal-shaped 4-1, and 4-2 and have enough big diameter is to be fixed in the lachrymal sac and to collect tear, also keep its drainage tube 1 that links to each other down to be fixed in the nasolacrimal duct simultaneously, play a part mediation nasolacrimal duct and drain tear.
Claims (4)
1, a kind of petal-shaped artificial nasolacrimal canal is characterized in that: described petal-shaped artificial nasolacrimal canal is to be connected by the less drainage tube of bigger fixed part of circumscribed circle diameter and caliber to constitute.
2, petal-shaped artificial nasolacrimal canal as claimed in claim 1 is characterized in that: 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 fixed part is bent to form base segment and top section on drainage tube top tube wall on average being split into four arm lobes with each arm lobe, and wherein fixed part pipe lobe base segment is connected with drainage tube, and setting forms.
3, petal-shaped artificial nasolacrimal canal as claimed in claim 2 is characterized in that: described pipe lobe base segment pushes up the angle that section has 80 ° ± 5 ° with the pipe lobe.
4, petal-shaped artificial nasolacrimal canal as claimed in claim 1 or 2 is characterized in that: described petal-shaped artificial nasolacrimal canal is to adopt the medical middle soft synthetic material of isogonic to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01249305 CN2489748Y (en) | 2001-07-18 | 2001-07-18 | Petal-shape artificial lacrimal duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01249305 CN2489748Y (en) | 2001-07-18 | 2001-07-18 | Petal-shape artificial lacrimal duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2489748Y true CN2489748Y (en) | 2002-05-08 |
Family
ID=33659741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01249305 Expired - Lifetime CN2489748Y (en) | 2001-07-18 | 2001-07-18 | Petal-shape artificial lacrimal duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2489748Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307957C (en) * | 2002-07-05 | 2007-04-04 | Iol技术产品有限责任公司 | Meatal occluder for closing a lachrymal meatus |
| WO2014001105A2 (en) * | 2012-06-25 | 2014-01-03 | Velimir-Josef Novak | Implant for producing a lacrimal canal in the human or animal body and surgical kit for producing a lacrimal canal |
| CN111936092A (en) * | 2018-04-03 | 2020-11-13 | 林丁 | Remaining needle tube system for eye drug administration |
| CN113350034A (en) * | 2021-06-01 | 2021-09-07 | 复旦大学附属眼耳鼻喉科医院 | Lower nasal meatus eustachian tube tympanum ventilation drainage tube |
-
2001
- 2001-07-18 CN CN 01249305 patent/CN2489748Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307957C (en) * | 2002-07-05 | 2007-04-04 | Iol技术产品有限责任公司 | Meatal occluder for closing a lachrymal meatus |
| WO2014001105A2 (en) * | 2012-06-25 | 2014-01-03 | Velimir-Josef Novak | Implant for producing a lacrimal canal in the human or animal body and surgical kit for producing a lacrimal canal |
| WO2014001105A3 (en) * | 2012-06-25 | 2014-03-27 | Velimir-Josef Novak | Implant for producing a lacrimal canal in the human or animal body and surgical kit for producing a lacrimal canal |
| CN111936092A (en) * | 2018-04-03 | 2020-11-13 | 林丁 | Remaining needle tube system for eye drug administration |
| CN113350034A (en) * | 2021-06-01 | 2021-09-07 | 复旦大学附属眼耳鼻喉科医院 | Lower nasal meatus eustachian tube tympanum ventilation drainage tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110718 Granted publication date: 20020508 |