CN100579494C - Artificial lacrimal duct capable of fixing - Google Patents
Artificial lacrimal duct capable of fixing Download PDFInfo
- Publication number
- CN100579494C CN100579494C CN200710303476A CN200710303476A CN100579494C CN 100579494 C CN100579494 C CN 100579494C CN 200710303476 A CN200710303476 A CN 200710303476A CN 200710303476 A CN200710303476 A CN 200710303476A CN 100579494 C CN100579494 C CN 100579494C
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- drainage tube
- collar flange
- steel wire
- guiding steel
- lacrimal duct
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Abstract
The invention discloses a fixable artificial lacrimal canaliculus comprising a drainage tube. A ring-shaped flange is arranged on one end of the drainage tube, a projection for fixing the drainage tube in lacrimal canaliculus of a human body is arranged on the outer wall of the drainage tube, which is close to the ring-shaped flange, a guiding steel wire is arranged on one end of the drainage tube, which is far from the ring-shaped flange, one end of the guiding steel wire is sleeved in the drainage tube, and the other end is provided with a protrusion part which is beneficial for using a hook needle to drag the guiding steel wire. The invention has the advantages of simple structure, easy making, convenient installation, simple caring and reliable fixation. Through that the guiding steel wire with the protrusion part is dragged by the hook needle drags, the artificial lacrimal canaliculus is convenient for being implanted into lacrimal passage.
Description
Technical field
The present invention relates to treatment of diseases instruments such as obstruction of lacrimal canaliculus and laceration of lacrimal canaliculus, relate in particular to fixable artificial lacrimal duct.
Background technology
Obstruction of lacrimal canaliculus and laceration of lacrimal canaliculus all are common ocular disease, at present, mainly treat with lacrimal passage spy art and lacrimal passage tube planting operation.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 lacrimal passage tube planting operation is in the artificial lacrimal duct implant into body lacrimal ductule that silica gel is made, and extracts artificial lacrimal duct after about three months, makes the human body lacrimal ductule recover unobstructed.Do not establish fixture on the existing artificial lacrimal duct, it only is a hollow pipe, therefore outside the part of artificial lacrimal duct must being exposed to, so that extract artificial lacrimal duct afterwards, this not only influences patient's outward appearance, live and work, and tend to cause the human body laceration of canaliculus if nursing is improper, make that artificial lacrimal duct is extracted after, secondary stricture again appears in the human body lacrimal ductule.Therefore, present treatment to obstruction of lacrimal canaliculus and laceration of lacrimal canaliculus is all less than very ideal treatment tool.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, be convenient to make, be convenient to install, be convenient to nursing, fixing reliable fixable artificial lacrimal duct.
For solving the problems of the technologies described above, the present invention by the following technical solutions.
A kind of fixable artificial lacrimal duct comprises drainage tube, and an end of described drainage tube is provided with collar flange, is provided with the protuberance that is used for drainage tube is fixed in the human body lacrimal ductule in the drainage tube outer wall near collar flange one end.
Described protuberance is a funnel-form retainer ring, and the opening of described funnel-form retainer ring and drainage tube angle is towards collar flange.
The angle of described funnel-form retainer ring and drainage tube is 15 °～45 °, and the height of funnel-form retainer ring is 1mm～1.5mm, and funnel-form retainer ring root is 2mm～3.5mm to the distance at collar flange top.
Described protuberance is a wing stator, and the opening of described wing stator and drainage tube angle is towards collar flange.
Described wing stator is provided with two, and arranges that in the drainage tube lateral symmetry the vertical fan out angle of each sheet wing stator is 30 °～90 °.
The angle of described wing stator and drainage tube is 15 °～45 °, and the height of wing stator is 1mm～1.5mm, and wing stator root is 2mm～3.5mm to the distance at collar flange top.
Described protuberance is a spherical fixed body.
Described spherical fixed body inside is a spherical cavity that communicates with drainage tube.
Described collar flange is provided with to be beneficial to tear is imported drain scrobicular ring in the drainage tube.
Described drainage tube is provided with a guiding steel wire away from an end of collar flange, and described guiding steel wire one end is sheathed in the drainage tube, and the other end is provided with the jut of being convenient to crochet hook tractive guiding steel wire.
Compared with prior art, advantage of the present invention just is:
When 1, adopting artificial lacrimal duct of the present invention that the patient is implemented the lacrimal passage tube planting operation, earlier drainage tube not being established an end of collar flange and protuberance implants in patient's the lacrimal ductule through last puncta or following puncta, and should hold and draw from nasal meatus, introduce lacrimal ductule until an end that drainage tube is provided with protuberance through last puncta or time puncta, and be positioned puncta or descend the puncta place by the end of collar flange with drainage tube.Make artificial dacryocanalicular silica gel material and be and have necessarily elasticly, protuberance is located on the outer wall of drainage tube, during its implanted patient's lacrimal ductule, can draw in, is convenient to install; Simultaneously, after drainage tube was located by collar flange, protuberance can provide tension force, plays fixation.
2, the angle opening of funnel-form retainer ring and drainage tube is that small end is introduced into when the funnel-form retainer ring enters lacrimal ductule towards collar flange, is convenient to install, and can alleviate patient's pain.
3, the angle opening of wing stator and drainage tube is that small end is introduced into when the wing stator enters lacrimal ductule towards collar flange, is convenient to install, and can alleviate patient's pain; Wing stator volume is little simultaneously, and is few to the compressing area of conjunctiva, can alleviate patient's foreign body sensation.
4, behind the implanted patient's lacrimal ductule of artificial lacrimal duct, can be squeezed and draw in, but spherical fixed body inside is a spherical cavity that communicates with drainage tube, thus artificial lacrimal duct is kept clear, and overall structure simply, be convenient to making.
5, collar flange is provided with the drain scrobicular ring, is convenient to the collection of tear, helps tear is imported in the drainage tube.
6, drainage tube is arranged with a guiding steel wire away from an end of collar flange, and guiding steel wire rigidity is better, is convenient to its implant into body lacrimal ductule, can play the effect that the guiding drainage tube is implanted; The guiding steel wire end is provided with jut, can pass through crochet hook tractive guiding steel wire easily, and guiding steel wire is taken out from nasal cavity, is convenient to artificial lacrimal duct is implanted lacrimal passage.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the A-A cross section view of Fig. 1;
Fig. 3 is the vertical view of the embodiment of the invention 1;
Fig. 4 is the structural representation of the embodiment of the invention 2;
Fig. 5 is the B-B cross section view of Fig. 4;
Fig. 6 is the vertical view of the embodiment of the invention 2;
Fig. 7 is the structural representation of the embodiment of the invention 3;
Fig. 8 is the C-C cross section view of Fig. 7;
Fig. 9 is the vertical view of the embodiment of the invention 3.
Each label is represented among the figure:
1, drainage tube 2, collar flange
11, guiding steel 21, drain scrobicular ring
31, funnel-form retainer ring 32, wing stator
33, spherical fixed body 111, jut
331, spherical cavity
The specific embodiment
Embodiment 1: as Fig. 1, Fig. 2 and shown in Figure 3, a kind of fixable artificial lacrimal duct of the present invention, employing silica gel is made, it comprises drainage tube 1, and an end of drainage tube 1 is provided with collar flange 2, is provided with funnel-form retainer ring 31 in drainage tube 1 outer wall near collar flange 2 one ends, the opening of funnel-form retainer ring 31 and drainage tube 1 angle is towards collar flange 2, be that small end is introduced into when funnel-form retainer ring 31 enters lacrimal ductule, be convenient to install, can alleviate patient's pain.Collar flange 2 is provided with to be beneficial to tear is imported drain scrobicular ring 21 in the drainage tube 1, is convenient to the collection of tear, helps tear is imported in the drainage tube 1.Drainage tube 1 is provided with a guiding steel 11 away from an end of collar flange 2, and guiding steel wire 11 1 ends are sheathed in the drainage tube 1, and the other end is provided with the jut of being convenient to crochet hook tractive guiding steel wire 11 111.Funnel-form retainer ring 31 is 15 °～45 ° with the angle α of drainage tube 1, the height L2 of funnel-form retainer ring 31 is 1mm～1.5mm, funnel-form retainer ring 31 roots are 2mm～3.5mm to the distance L 1 at collar flange 2 tops, in the present embodiment, angle α is made as 20 °, L2 is made as 1.1mm, and L1 is made as 2.1mm.Drainage tube 1 internal diameter is 0.3mm, external diameter is 0.6mm, length is 100mm, guiding steel wire 11 diameter 0.5mm, length is 60mm, drainage tube 1 pliability is good, has certain elasticity, guiding steel wire 11 makes drainage tube 1 tensioning between guiding steel 11 and the drainage tube 1 to have enough tensile forces, so that by guiding steel 11 tractive drainage tubes 1.
When the artificial lacrimal duct of employing present embodiment is implemented the lacrimal passage tube planting operation to the patient, earlier guiding steel wire 11 is inserted lachrymal sac through last puncta or following puncta, visit logical lacrimal passage according to a conventional method, guide the jut 111 of steel 11 to be arranged in inferior nasal meatus this moment, the special-purpose crochet hook of reuse hooks the jut 111 back tractive guiding steel 11 of guiding steel wire 11 ends, guiding steel wire is taken out from nasal cavity, drainage tube 1 is brought in patient's the lacrimal ductule by guiding steel 11, set funnel-form retainer ring 31 is introduced lacrimal ductules on drainage tube 1, and by collar flange 2 end of drainage tube 1 is positioned puncta or time puncta place.Drainage tube 1 internal diameter is big, is convenient to the tear circulation, has enough length again, the redundance that stretches out nasal meatus can be wiped out together with guiding steel wire 11 when operation finishes.Make artificial dacryocanalicular silica gel material and be and have necessarily elasticly, funnel-form retainer ring 31 is located on the outer wall of drainage tube 1, and diameter is greater than the diameter of drainage tube 1, during its implanted patient's lacrimal ductule, can draw in, is convenient to install; Simultaneously, after drainage tube 1 was located by collar flange 2, funnel-form retainer ring 31 can provide tension force, plays fixation.
Embodiment 2: as Fig. 4, Fig. 5 and shown in Figure 6, a kind of fixable artificial lacrimal duct of the present invention is to adopt silica gel to make in the present embodiment, simultaneously, also can adopt other to have certain elastic medical material and make.This artificial lacrimal duct comprises drainage tube 1, and an end of drainage tube 1 is provided with collar flange 2, and in being provided with wing stator 32 near collar flange 2 places, the opening of wing stator 32 and drainage tube 1 angle is towards collar flange 2.Be that small end is introduced into when wing stator 32 enters lacrimal ductule, be convenient to install, can alleviate patient's pain.Collar flange 2 is provided with drain scrobicular ring 21, is convenient to the collection of tear, helps tear is imported in the drainage tube 1.Drainage tube 1 is provided with a guiding steel wire 11 away from an end of collar flange 2, and guiding steel wire 11 1 ends are sheathed in the drainage tube 1, and the other end is provided with the jut of being convenient to crochet hook tractive guiding steel wire 11 111.Wing stator 32 is provided with two, and arrange in drainage tube 1 lateral symmetry, each sheet wing stator 32 vertical fan out angle beta is 30 °～90 °, and wing stator 32 is 15 °～45 ° with the angle α of drainage tube 1, and the height L2 of wing stator 3 is 1mm～1.5mm, wing stator 32 roots are 2mm～3.5mm to the distance L 1 at collar flange 2 tops, in the present embodiment, the fan out angle beta is made as 45 °, and angle α is made as 20 °, L2 is made as 1.1mm, and L1 is made as 2.1mm.Drainage tube 1 internal diameter is 0.3mm, external diameter is 0.6mm, length is 100mm, guiding steel wire 11 diameter 0.5mm, length is 60mm, drainage tube 1 pliability is good, has certain elasticity, guiding steel wire 11 makes drainage tube 1 tensioning between guiding steel wire 11 and the drainage tube 1 to have enough tensile forces, so that by guiding steel wire 11 tractive drainage tubes 1.
When the artificial lacrimal duct of employing present embodiment is implemented the lacrimal passage tube planting operation to the patient, earlier guiding steel wire 11 is inserted lachrymal sac through last puncta or following puncta, visit logical lacrimal passage according to a conventional method, this moment, the jut 111 of guiding steel wire 11 was arranged in inferior nasal meatus, the special-purpose crochet hook of reuse hooks the jut 111 back tractive guiding steel wires 11 of guiding steel wire 11 ends, guiding steel wire is taken out from nasal cavity, drainage tube 1 is brought in patient's the lacrimal ductule by guiding steel wire 11, set wing stator 32 is introduced lacrimal ductules on drainage tube 1, and by collar flange 2 end of drainage tube 1 is positioned puncta or time puncta place.Drainage tube 1 internal diameter is big, is convenient to the tear circulation, has enough length again, the redundance that stretches out nasal meatus can be wiped out together with guiding steel wire 11 when operation finishes.Make artificial dacryocanalicular silica gel material and be and have necessarily elasticly, wing stator 32 is located on the outer wall of drainage tube 1, and diameter is greater than the diameter of drainage tube 1, during its implanted patient's lacrimal ductule, can draw in, is convenient to install; Simultaneously, after drainage tube 1 was located by collar flange 2, wing stator 32 can provide tension force, plays fixation; And wing stator 32 volumes are little, and are few to the compressing area of conjunctiva, can alleviate patient's foreign body sensation.
Embodiment 3: as Fig. 7, Fig. 8 and shown in Figure 9, a kind of fixable artificial lacrimal duct of the present invention comprises drainage tube 1, and an end of drainage tube 1 is provided with collar flange 2, is provided with spherical fixed body 33 in drainage tube 1 outer wall near collar flange 2 one ends.Spherical fixed body 33 inside are a spherical cavity 331 that communicates with drainage tube 1, and artificial lacrimal duct still can be kept clear under extruded situation.Collar flange 2 is provided with to be beneficial to tear is imported drain scrobicular ring 21 in the drainage tube 1, is convenient to the collection of tear, helps tear is imported in the drainage tube 1.Drainage tube 1 is provided with a guiding steel wire 11 away from an end of collar flange 2, and guiding steel wire 11 1 ends are sheathed in the drainage tube 1, and the other end is provided with the jut of being convenient to crochet hook tractive guiding steel wire 11 111.Drainage tube 1 internal diameter is 0.3mm, external diameter is 0.6mm, length is 100mm, guiding steel wire 11 diameter 0.5mm, length is 60mm, drainage tube 1 pliability is good, has certain elasticity, guiding steel wire 11 makes drainage tube 1 tensioning between guiding steel wire 11 and the drainage tube 1 to have enough tensile forces, so that by guiding steel wire 11 tractive drainage tubes 1.
When the artificial lacrimal duct of employing present embodiment is implemented the lacrimal passage tube planting operation to the patient, earlier guiding steel wire 11 is inserted lachrymal sac through last puncta or following puncta, visit logical lacrimal passage according to a conventional method, this moment, the jut 111 of guiding steel wire 11 was arranged in inferior nasal meatus, the special-purpose crochet hook of reuse hooks the jut 111 back tractive guiding steel wires 11 of guiding steel wire 11 ends, guiding steel wire is taken out from nasal cavity, drainage tube 1 is brought in patient's the lacrimal ductule by guiding steel wire 11, introduce lacrimal ductule until an end that drainage tube 1 is provided with spherical fixed body 33 through last puncta or time puncta, and be positioned puncta or descend the puncta place by the end of collar flange with drainage tube 1.Drainage tube 1 internal diameter is big, is convenient to the tear circulation, has enough length again, the redundance that stretches out nasal meatus can be wiped out together with guiding steel wire 11 when operation finishes.Make artificial dacryocanalicular silica gel material and be and have necessarily elasticly, spherical fixed body 33 is located on the outer wall of drainage tube 1, during its implanted patient's lacrimal ductule, can draw in, is convenient to install; After drainage tube 1 was located by collar flange 2, spherical fixed body 33 can provide tension force, plays fixation; This artificial lacrimal duct is simple in structure, is convenient to make.
Claims (9)
1, a kind of fixable artificial lacrimal duct, comprise drainage tube (1), one end of described drainage tube (1) is provided with collar flange (2), be provided with the protuberance that is used for drainage tube (1) is fixed in the human body lacrimal ductule in drainage tube (1) outer wall near collar flange (2) one ends, it is characterized in that: described drainage tube (1) is provided with a guiding steel wire (11) away from an end of collar flange (2), described guiding steel wire (11) one ends are sheathed in the drainage tube (1), and the other end is provided with the jut of being convenient to crochet hook tractive guiding steel wire (11) (111).
2, fixable artificial lacrimal duct according to claim 1 is characterized in that: described protuberance is a funnel-form retainer ring (31), and the opening of described funnel-form retainer ring (31) and drainage tube (1) angle is towards collar flange (2).
3, the artificial lacrimal duct of dribbling shape fixed body according to claim 2, it is characterized in that: described funnel-form retainer ring (31) is 15 °～45 ° with the angle (α) of drainage tube (1), the height (L2) of funnel-form retainer ring (31) is 1mm～1.5mm, and funnel-form retainer ring (31) root is 2mm～3.5mm to the distance (L1) at collar flange (2) top.
4, fixable artificial lacrimal duct according to claim 1 is characterized in that: described protuberance is a wing stator (32), and the opening of described wing stator (32) and drainage tube (1) angle is towards collar flange (2).
5, fixable artificial lacrimal duct according to claim 4, it is characterized in that: described wing stator (32) is provided with two, and in drainage tube (1) lateral symmetry layout, each vertical fan out angle of sheet wing stator (32) (β) is 30 °～90 °.
6, fixable artificial lacrimal duct according to claim 5, it is characterized in that: described wing stator (32) is 15 °～45 ° with the angle (α) of drainage tube (1), the height (L2) of wing stator (32) is 1mm～1.5mm, and wing stator (32) root is 2mm～3.5mm to the distance (L1) at collar flange (2) top.
7, fixable artificial lacrimal duct according to claim 1 is characterized in that: described protuberance is a spherical fixed body (33).
8, fixable artificial lacrimal duct according to claim 7 is characterized in that: described spherical fixed body (33) inside is a spherical cavity (331) that communicates with drainage tube (1).
9, according to each described fixable artificial lacrimal duct in the claim 1 to 8, it is characterized in that: described collar flange (2) is provided with to be beneficial to tear is imported the interior drain scrobicular ring (21) of drainage tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710303476A CN100579494C (en) | 2007-12-29 | 2007-12-29 | Artificial lacrimal duct capable of fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710303476A CN100579494C (en) | 2007-12-29 | 2007-12-29 | Artificial lacrimal duct capable of fixing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101194867A CN101194867A (en) | 2008-06-11 |
| CN100579494C true CN100579494C (en) | 2010-01-13 |
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ID=39545618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710303476A Expired - Fee Related CN100579494C (en) | 2007-12-29 | 2007-12-29 | Artificial lacrimal duct capable of fixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100579494C (en) |
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2007
- 2007-12-29 CN CN200710303476A patent/CN100579494C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101194867A (en) | 2008-06-11 |
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Granted publication date: 20100113 Termination date: 20171229 |