CN1259894C - Ligature elastic tear duct dilator - Google Patents
Ligature elastic tear duct dilator Download PDFInfo
- Publication number
- CN1259894C CN1259894C CN 03116334 CN03116334A CN1259894C CN 1259894 C CN1259894 C CN 1259894C CN 03116334 CN03116334 CN 03116334 CN 03116334 A CN03116334 A CN 03116334A CN 1259894 C CN1259894 C CN 1259894C
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- CN
- China
- Prior art keywords
- section
- line
- dilator
- lacrimal
- lachrymal sac
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 210000004083 nasolacrimal duct Anatomy 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 210000003128 head Anatomy 0.000 claims abstract description 7
- 239000000741 silica gel Substances 0.000 claims abstract description 7
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000007943 implant Substances 0.000 abstract description 6
- 206010063560 Excessive granulation tissue Diseases 0.000 abstract description 3
- 210000001126 granulation tissue Anatomy 0.000 abstract description 3
- 230000002757 inflammatory effect Effects 0.000 abstract description 3
- 230000000916 dilatatory effect Effects 0.000 abstract 3
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 239000013013 elastic material Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000002513 implantation Methods 0.000 description 5
- 210000003484 anatomy Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 206010011844 Dacryocystitis Diseases 0.000 description 1
- 206010028347 Muscle twitching Diseases 0.000 description 1
- 206010061876 Obstruction Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 201000005471 chronic dacryocystitis Diseases 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention discloses a connecting thread elastic tear duct dilator. The present invention comprises a connecting thread part and a dilating part, wherein the dilating part is composed of a dacryocyst section, a nasolacrimal duct section and a meatus nasi inferior anterior naris section, which are made into a whole by silica gel or other elastic materials, the dilating part can be elongated and thinned, the connecting thread is a silk thread or other flexible thread materials, the middle point of the connecting thread is knotted and fixed with the head part of the dacryocyst section, one section of the connecting line is used as a connecting thread section of the dilator, the other section is fixedly knotted with the connecting position of the dacryocyst section and the nasolacrimal duct section, the part which is below the nasolacrimal duct section of the connecting thread is fixed at the meatus nasi inferior anterior naris section, and the connecting thread section of the dacryocyst section is slightly longer than the dacryocyst section. The connecting thread elastic tear duct dilator of the present invention not only is easy to implant in a tear duct to effectively dilate each section below the dacryocyst, but also has the advantages that the present invention is not easy to break, the present invention is favorable for the circulation of tears and the removing of inflammatory granulation tissues, etc.
Description
Technical field the present invention relates to a kind of lacrimal dilator.
The background technology lacrimal dilator is used for the treatment of obstruction of naso lacrimal duct or merges the obstructed lacrimal passage of chronic dacryocystitis.Use at present more lacrimal dilator form because of its each section be the thickness homogeneous or integral structure, do not meet lacrimal passage anatomical structure characteristics and damage puncta and lacrimal ductule easily, poor to the obstructive position expansion effect of lachrymal sac, nasolacrimal duct.The sacculus shape lacrimal passage extension fixture that a kind of band wire is also arranged is implanted lacrimal passage owing to wherein being difficult for elongation greatly as the silica gel head end of expanding the lachrymal sac position, and line and the junction dialysis of silica gel head end is taken place easily.Also have a kind of balloon catheter (balloon catheter) lacrimal dilator, because of its air bag is difficult for implanting lacrimal passage, the injecting gas amount is wayward in the gas leakage, and air bag easily, complex structure, and manufacture difficulty is big.
Summary of the invention technical problem to be solved by this invention be to propose a kind of be easy to implant lacrimal passage, to each section below the lachrymal sac can effectively expand, easy fracture, do not help the tear circulation simultaneously yet and remove the line elasticity lacrimal dilator of inflammatory granulation tissue in the lacrimal passage.
For solving the problems of the technologies described above, line elasticity lacrimal dilator of the present invention comprises line (passing puncta, lacrimal ductule, the total pipeline section of tear) and expansion, described expansion is formed by adopting silica gel or other elastomeric materials to make all-in-one-piece lachrymal sac section, nasolacrimal duct section and inferior nasal meatus prenaris section three parts, it can be elongated attenuate; Described line is silk thread or other soft wire rods, the head of the mid point of described line and described lachrymal sac section (one near tear house steward and lachrymal sac upper wall behind the implantation lacrimal passage claims head) knotting is fixing, one section of described line as dilator line section, another section is equipped with fixing knot with the junction of described lachrymal sac section and nasolacrimal duct section, the following partial fixing of nasolacrimal duct section of described line is in described inferior nasal meatus prenaris section, and the intersegmental line section of described lachrymal sac slightly is longer than described lachrymal sac section.
Above-mentioned line elasticity lacrimal dilator, design is fluted on described nasolacrimal duct section and the inferior nasal meatus prenaris section.
Above-mentioned line elasticity lacrimal dilator, the junction design of described line and described nasolacrimal duct section and lachrymal sac section connecting portion has the ligation toe-in.
Above-mentioned line elasticity lacrimal dilator, the dilator line section of described line partly is marked with the length scale.
Above-mentioned line elasticity lacrimal dilator, described inferior nasal meatus prenaris section design has notch type or pass toe-in fixed structure, and described line is fixed on the above-mentioned toe-in fixed structure.
Above-mentioned line elasticity lacrimal dilator, the circulus of described lachrymal sac Duan Weifei entity.
Owing to adopted above-mentioned technical pattern, each of line elasticity lacrimal dilator of the present invention formed the section thickness, structure differs, meet the lacrimal passage anatomical structure, and lachrymal sac section, nasolacrimal duct section can be according to the human anatomic structure size design, or according to the actual dissection size design of concrete individual patients.The lachrymal sac section is according to the lachrymal sac size and dissect shaped design circlewise, has elastic reaction, can effectively expand lachrymal sac.The nasolacrimal duct section of dilator is thicker, can effectively expand nasolacrimal duct.Simultaneously, it also has following many beneficial effects: 1, because lachrymal sac section, nasolacrimal duct section and inferior nasal meatus prenaris section all adopt silica gel or other elastomeric materials to be made, can stressed elongation attenuate, and the lachrymal sac segment structure is ring-type but not entity structure, dwindle volume, thereby be easy to implant lacrimal passage; 2, line linking line elasticity lacrimal dilator all form section, thereby can avoid implanting or when twitching lacrimal dilator the situation of line and the junction dialysis of lachrymal sac section or lachrymal sac section, nasolacrimal duct section and the fracture of inferior nasal meatus prenaris section (expansion) elastomeric material take place; 3, the line section between the lachrymal sac section slightly is longer than the lachrymal sac section, line ligation respectively is fixed on lachrymal sac paragraph header portion and lachrymal sac section and nasolacrimal duct section junction, lachrymal sac section elastomeric material can elongate and attenuate, and is easy to implant lacrimal passage, and is not easy to fracture because of the elongation length of lachrymal sac section can be subjected to the line restriction; And because of lachrymal sac section width greater than nasolacrimal duct section width, so dilator is difficult for to the following slippage of nasolacrimal duct; 4, the groove that designs on nasolacrimal duct section and the inferior nasal meatus prenaris section has the water guide effect, helps the tear circulation during the dilator lacrimal passage is implanted; 5, the ligation toe-in of the junction of line and described nasolacrimal duct section and lachrymal sac section connecting portion design can play the effect of removing inflammatory granulation tissue in the lacrimal passage; 6, line adopts sub-thread silk thread or other soft wire rods, not easy damaged lacrimal point, lacrimal ductule.7, the length scale of the line standard laid down by the ministries or commissions of the Central Government of line elasticity lacrimal dilator note can be observed the dilator elastic dilatation and partly implant the lacrimal passage degree of depth, avoids implanting excessive or not enough; 8, the notch type or the pass tie lines fixed structure (several can be arranged) of the setting of inferior nasal meatus prenaris section, can be beneficial to silk thread and silicon gel part contact ligation difficult drop-off, and can select an only tie lines fixed structure in a plurality of toe-in fixed structures according to concrete patient's lacrimal passage length, so that the prenaris redundance can be wiped out behind the dilator implantation lacrimal passage, have hiding project organization, avoid the dilator inferior nasal meatus, the prenaris redundance exposes influences outward appearance.
Description of drawings is described in further detail the present invention below in conjunction with drawings and embodiments.
Fig. 1 is the structural representation of line elasticity lacrimal dilator of the present invention.
The specific embodiment as shown in Figure 1, line elasticity lacrimal dilator comprises line 1 (passing puncta, lacrimal ductule, the total pipeline section of tear) and expansion, expansion is made up of the lachrymal sac section 2 that fuses, nasolacrimal duct section 3 and inferior nasal meatus prenaris section 4 three parts, line 1 adopts a long sub-thread silk thread of about 20 centimetres (also can adopt other soft wire rods, 7-10 number or thicker), lachrymal sac section 2, nasolacrimal duct section 3 and inferior nasal meatus prenaris section 4 all adopt silica gel to make (also can adopt other elastomeric materials to make), it can be elongated attenuate.Lachrymal sac section 2 is an elliptical annular, and the head of the mid point of line 1 and lachrymal sac section 2 (near tear house steward and lachrymal sac upper wall behind the implantation lacrimal passage claims head) knotting is fixing, 5 expression toe-in heads among the figure.The 10 centimeter length sections part that line is 1 one is marked with the length scale as dilator line section 6 on it.The other end of line 1 and lachrymal sac section 2 and nasolacrimal duct section 3 junctions are equipped with 2 fixing knots 7.Line section 10 between lachrymal sac section 2 slightly is longer than lachrymal sac section 2.Design fluted 8 on nasolacrimal duct section 3 and the inferior nasal meatus prenaris section 4.Be provided with a plurality of pass toe-in fixed structures 9 (being fixing hole) in the groove 8 of inferior nasal meatus prenaris section 4, on the pass toe-in fixed structure 9 that line 1 is fixed therein.
The method for implantation of line elasticity lacrimal dilator of the present invention is; Lacrimal passage hanging wire postoperative, hanging wire connect dilator line section, and hanging wire traction line section is driven in the wrong direction and is implanted in lacrimal passage by prenaris, inferior nasal meatus, nasolacrimal duct, lachrymal sac, tear house steward, superior canaliculus, last lacrimal point pathway.After the implantation, the traction line makes the dilator expansion implant nasolacrimal duct and lachrymal sac respectively, and following lacrimal point, lower lacrimal canaliculi do not have the extension fixture effect of isolating and do not damage down lacrimal point and lower lacrimal canaliculi.The line section also can be pulled out by lower lacrimal canaliculi, following puncta pathway.It is little that the line section is measured the appearance effects that is adhesively fixed after the length under the forehead chignon.
Claims (5)
1, line elasticity lacrimal dilator, it is characterized in that, it comprises line and expansion, described expansion is by adopting silica gel or other elastomeric materials to make all-in-one-piece lachrymal sac section, nasolacrimal duct section and inferior nasal meatus prenaris section three parts are formed, it can be elongated attenuates, described line is silk thread or other soft wire rods, the head knotting of the mid point of described line and described lachrymal sac section is fixing, one section of described line as dilator line section, another section is equipped with fixing knot with the junction of described lachrymal sac section and nasolacrimal duct section, the following partial fixing of nasolacrimal duct section of described line is in described inferior nasal meatus prenaris section, and the intersegmental line section of described lachrymal sac slightly is longer than described lachrymal sac section.
2, line elasticity lacrimal dilator as claimed in claim 1 is characterized in that, design is fluted on described nasolacrimal duct section and the inferior nasal meatus prenaris section.
3, line elasticity lacrimal dilator as claimed in claim 1 or 2 is characterized in that, the junction design of described line and described nasolacrimal duct section and lachrymal sac section connecting portion has the ligation toe-in.
4, line elasticity lacrimal dilator as claimed in claim 1 or 2 is characterized in that, the dilator line section of described line partly is marked with the length scale.
5, line elasticity lacrimal dilator as claimed in claim 1 or 2 is characterized in that, described inferior nasal meatus prenaris section is provided with notch type or pass toe-in fixed structure, and described line is fixed on the above-mentioned toe-in fixed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116334 CN1259894C (en) | 2003-04-09 | 2003-04-09 | Ligature elastic tear duct dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116334 CN1259894C (en) | 2003-04-09 | 2003-04-09 | Ligature elastic tear duct dilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1451361A CN1451361A (en) | 2003-10-29 |
| CN1259894C true CN1259894C (en) | 2006-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116334 Expired - Fee Related CN1259894C (en) | 2003-04-09 | 2003-04-09 | Ligature elastic tear duct dilator |
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| Country | Link |
|---|---|
| CN (1) | CN1259894C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI1008030A2 (en) * | 2009-02-23 | 2016-03-15 | Qlt Plug Delivery Inc | tear implants and related methods |
| CN114176898B (en) * | 2021-12-13 | 2024-12-17 | 浙江省荣军医院 | Iris drag hook composite set |
| CN117017613B (en) * | 2023-09-12 | 2026-01-30 | 邯郸市眼科医院(邯郸市第三医院) | A lacrimal duct support tube for draining tears implanted in a single lacrimal duct and its implantation method. |
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2003
- 2003-04-09 CN CN 03116334 patent/CN1259894C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1451361A (en) | 2003-10-29 |
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Granted publication date: 20060621 |