CN205947914U - Tear duct is widened and is filled in with lacrimal point - Google Patents

Abstract

The utility model provides a tear duct is widened and is filled in with lacrimal point, its characterized in that: including the cock cap, the cock cap becomes the ring form, its below connecting pin pipe, stopper outside of tubes side has a plurality of cyclic annular uplifts, and the uplift is inside to have a corresponding ring form inner chamber, the inner ring has been inlayed in the ring inner chamber, cylindric inner core has been inserted to the inner ring core, the inner core has a plurality of vertical core holes of lining up. The utility model discloses an implant the cavity lacrimal point stopper of lacrimal point and tear duct juncture, can widen the tear duct by automatic inflation after the implantation, stop up effectively to degree tear duct in light, adapt simultaneous that the tear duct structure is firm does not have a stimulation.

Description

A kind of tear stains broadening Punctal plug

Technical field

This utility model belongs to a kind of medical instruments field, especially relates to a kind of tear stains broadening Punctal plug.

Background technology

Obstructed lacrimal passage is ophthalmology common disease frequently-occurring disease, is a kind of often generation in lacrimal point, lacrimal ductule, lachrymal sac and nasolacrimal duct boundary Mouth under place and nasolacrimal duct, the disease with excessive tear as cardinal symptom, if treatment is not thorough, there are ophthalmic of hiding, the danger of outer infection. Its Therapeutic Principle is to control lachrymal sac inflammation, restores or builds up lacrimal passage lachrymal sac to nasal cavity drainage channel.

Existing Therapeutic Method mainly have spy logical put pipe, block cut, the adopted pipe operation of nasolacrimal duct, dacryocystorhinostomy, Laser surgery for lacrimal duct obstruction.

1 spy is logical to put pipe：Can adopt and repeat to visit logical and incrementally increase the method to expand nasolacrimal duct for the probe, slight to minority Or fibrin adhesion obstruction is effectively, has fixed cicatrix and has then been difficult to prove effective.Visit logical rear line for example silk thread, gutstring, polyethylene or Silica gel tube etc., indwelling makes formation passage in 3～6 months.

2. block and cut：The method having multiple incisions, such as special cutter incision, coagulation or electrolysis, drive in the wrong direction from upper road or intranasal Cut obstruction etc..

3. nasolacrimal duct justice pipe operation：Internal diameter 1.5～3mm justice pipe is inserted after visiting logical expansion nasolacrimal duct.

4. dacryocystorhinostomy：Lachrymal sac is directly coincide with nasal mucosa, so that secretions and tear is directly entered by lachrymal sac Middles nasal meatus, to eliminate the suppurative focus of lachrymal sac and to release epiphora phenomenon.

5. Laser surgery for lacrimal duct obstruction：Hit out at the stenotic obstruction of lacrimal ductule, tear house steward or nasolacrimal duct with laser, combination medicine Perfusion.

Lacrimal point is substantially visited logical by these methods, then puts silk thread, sebific duct etc., indwelling make for a period of time formation passage or Person builds new tear passage again by operation means.But the silk thread of these indwellings, sebific duct equal diameter are all fixing it is impossible to very Play well the effect of expansion lacrimal point, therapeutic effect is undesirable.The mode effect of operation preferably, but operation price is high also can give Patient brings misery.

Utility model content

This utility model is to provide a kind of tear stains broadening Punctal plug for the problems referred to above, is handed over by implanting lacrimal point and tear stains Hollow Punctal plug at boundary, can widen tear stains with automatic expansion after implantation, to light moderate lacrimal duct obstruction effectively, adapt to tear stains simultaneously Stabilized structure is non-stimulated.

The technical solution of the utility model is：A kind of tear stains broadening Punctal plug it is characterised in that:Including cock cap, described Cock cap becomes circular, below connection plug pipe, has some ring-type protuberances outside described plug pipe, and protuberance inside has corresponding circular Inner chamber, is embedded with internal ring in described annulus inner chamber, and described internal ring core is inserted with cylindric inner core, and described inner core has some vertical insertions Core bore.

Further, described inner core is non-degradable material, simultaneously water insoluble, still can keep certain rigidity in water.

Further, described inner core is degradation material, degrades over, and has certain rigidity before degraded.

Further, described inner core adopts collagen.

Further, described internal ring has water swellability using water insoluble non-degradable material simultaneously.

Further, water insoluble non-degradable material selected by described cock cap and described plug pipe.

Further, described plug pipe external diameter is less than described cock cap external diameter.

Further, between described internal ring and inner core, gap is less than 0.1mm.

The phrase " material of degradable " that this utility model uses represents and is typically found in mammal being exposed to Degrade during bioactive substance to can detection level material.

The phrase " nondegradable material " that this utility model uses represents and is typically found in mammal being exposed to Bioactive substance when cannot degrade or micro degraded.

The phrase " water insoluble non-degradable material " that this utility model uses represents the biology being exposed in mammal Do not dissolve in itself to significance degree during active substance, cannot degrade or micro degraded simultaneously.

This utility model passes through to implant the hollow Punctal plug of lacrimal point and tear stains intersection, core from inner core for the tear after implantation Reduction of patient excessive tear symptom is flow through, tear flows through internal ring, internal ring imbibition, and the protrusion of plug pipe is expanded outwardly top in hole Play the tear stains expansion so as to outside, inner core is secured firmly to center by the expansion of internal ring simultaneously.

Wherein it is directed to slight lacrimal duct obstruction and selects degradable collagen inner core, the presence of initial inner core makes tear stains significantly widen Alleviate excessive tear symptom, inner core is progressively degraded in time, and tear stains width will reduce by a small margin, but because inner core disappears, in tear stains Tear is dredged and is not had big impact.Long-time use can make tear stains obtain certain rectification.

Select non-degradable type inner core for moderate lacrimal duct obstruction, the presence of inner core improves the integral rigidity of plug pipe, makes Tear stains widen effect is significant, simultaneously adapt to tear stains stabilized structure non-stimulated.

Brief description

Fig. 1 is section isometric view of the present utility model；

Fig. 2 is profile of the present utility model.

In figure：

1st, cock cap 2, plug pipe 3, internal ring

4th, inner core 5, core bore

Specific embodiment

Below in conjunction with the accompanying drawings this utility model is elaborated.

As depicted in figs. 1 and 2, a kind of tear stains broadening Punctal plug it is characterised in that:Including cock cap 1, described cock cap 1 becomes Circular, connection plug pipe 2 below, there are some ring-type protuberances outside described plug pipe 2, protuberance inside has corresponding circular interior Chamber, is embedded with internal ring 3 in described annulus inner chamber, described internal ring 3 core is inserted with cylindric inner core 4, and described inner core 4 has and some vertically passes through Logical core bore 5.

Described inner core 4 is non-degradable material, simultaneously water insoluble, still can keep certain rigidity in water.

Described inner core 4 is degradation material, degrades over, and has certain rigidity before degraded.

Described inner core 4 adopts collagen.The biocompatibility of collagen is fine, if can be played certain using special collagen Medical care effect.

Described internal ring 3 has water swellability using the water insoluble material solution that can not drop simultaneously.

Water insoluble non-degradable material selected by described cock cap 1 and described plug pipe 2.

Described plug pipe external diameter is less than described cock cap 1 external diameter.Cock cap 1 can be made to be stuck in outside lacrimal point, make Punctal plug fixing more Plus firmly.

Between described internal ring 3 and inner core 4, gap is less than 0.1mm.After internal ring 3 imbibition, lock ring, on inner core 4, makes whole Body rigidity gets a promotion.

This utility model passes through to implant the hollow Punctal plug of lacrimal point and tear stains intersection, and after implantation, tear is from inner core 4 Reduction of patient excessive tear symptom is flow through, tear flows through internal ring 3, internal ring 3 imbibition, by the protrusion of plug pipe to extending out in core bore 5 So as to the tear stains in outside is expanded, inner core 4 is secured firmly to center to Zhang Dingqi by the expansion of internal ring 3 simultaneously.

Wherein it is directed to the inner core 4 that slight lacrimal duct obstruction selects degradation material collagen, the presence of initial inner core 4 makes tear stains big Width widens alleviation excessive tear symptom (collagen has certain water swellability, widens effect more preferable), and inner core 4 progressively drops in time Solution, tear stains width will reduce by a small margin, but because inner core 4 disappears, the tear in tear stains is dredged and do not had big impact.For a long time Obtain certain rectification using tear stains can be made.

Select the inner core 4 of non-degradable material for moderate lacrimal duct obstruction, the presence of inner core 4 improves the entirety of plug pipe 2 Rigidity, makes the effect is significant of widening of tear stains, adapts to tear stains stabilized structure non-stimulated simultaneously.

Above an embodiment of the present utility model is described in detail, but described content is only of the present utility model Preferred embodiment is it is impossible to be considered for limiting practical range of the present utility model.All made according to this utility model application range Impartial change and improvement etc., all should still belong within patent covering scope of the present utility model.

Claims (8)

1. a kind of tear stains broadening Punctal plug it is characterised in that:Including cock cap, described cock cap becomes circular, below connection plug Manage, have some ring-types protuberances outside described plug pipe, protuberance is internal corresponding circular inner chamber, be embedded with interior in described annulus inner chamber Ring, described internal ring core is inserted with cylindric inner core, and described inner core has the core bore of some vertical insertions.

2. a kind of tear stains broadening Punctal plug according to claim 1 it is characterised in that：Described inner core is non-degradable material Material, simultaneously water insoluble, water still can keep certain rigidity.

3. a kind of tear stains broadening Punctal plug according to claim 1 it is characterised in that：Described inner core is degradable material Material, degrades over, has certain rigidity before degraded.

4. a kind of tear stains broadening Punctal plug according to claim 3 it is characterised in that：Described inner core adopts collagen.

5. a kind of tear stains broadening Punctal plug according to claim 1 it is characterised in that：Described internal ring adopts water insoluble Non-degradable material has water swellability simultaneously.

6. a kind of tear stains broadening Punctal plug according to claim 1 it is characterised in that：Described cock cap and described plug Guan Xuan Use water insoluble non-degradable material.

7. a kind of tear stains broadening Punctal plug according to claim 1 it is characterised in that：Described plug pipe external diameter is less than described Cock cap external diameter.

8. a kind of tear stains broadening Punctal plug according to claim 1 it is characterised in that：Between between described internal ring and inner core Gap is less than 0.1mm.