CN104586565A - Lacrimal pump physiological mechanism imitating lacrimal drainage device - Google Patents
Lacrimal pump physiological mechanism imitating lacrimal drainage device Download PDFInfo
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- CN104586565A CN104586565A CN201410853684.XA CN201410853684A CN104586565A CN 104586565 A CN104586565 A CN 104586565A CN 201410853684 A CN201410853684 A CN 201410853684A CN 104586565 A CN104586565 A CN 104586565A
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- lacrimal
- collector tube
- lacrimal ductule
- tear
- communicating pipe
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Abstract
The invention relates to an ophthalmic operative implant, in particular to a permanent lacrimal pump physiological mechanism imitating lacrimal drainage device capable of imitating lacrimal passage dissection and a lacrimal pump physiological mechanism provided for a full lacrimal passage obstruction patient. According to the adopted following technical scheme, the lacrimal pump physiological mechanism imitating lacrimal drainage device is characterized by comprising a lacrimal ductule, a liquid collection tube, a communicating tube and an outlet, wherein one end of the lacrimal ductule is arranged in a vertical upward bending manner; an end part at the other end of the lacrimal ductule is communicated with the liquid collection tube after being upwarped; the upwarped end part of the lacrimal ductule is connected to the middle upper part of the liquid collection tube; the lower end of the liquid collection tube is connected with the communicating tube; the communicating tube is provided with a bent part and an upward vertical part in a bending manner; the upper end of the vertical part is connected with the outlet. By using the scheme, the novel lacrimal pump physiological mechanism imitating lacrimal drainage device for restoring active lacrimal drainage and reducing anatomical physiological structure change is provided for the patients with complex lacrimal passage obstruction.
Description
Technical field
The present invention relates to a kind of ophthalmologic operation implant, being specially full obstructed lacrimal passage patient provides a kind of imitative lacrimal passage to dissect the tear drainage device with the permanent imitative tear pump physiological mechanism of tear pump physiological mechanism.
Background technology
Lacrimal Passage Block is ophthalmology common disease, and clinical manifestation is tear, the pyorrhea etc. of overflowing, and obviously reduces patients ' life quality.Along with the raising that people's quality of life requires, the tear Chang Buneng that overflows is accepted by people.Particularly chronic dacryocystitis is often called eyeball other " time bomb ", when ocular trauma or intraocular surgery, and can secondary corneal ulcer or endophthalmitis.Along with the development of medical diagnosis and treat technology, the treatment success rate of Lacrimal Passage Block obviously raises, but still has certain mortality.Particularly for failure after obstruction of lacrimal canaliculus, dacryocystorhinostomy, under conchoscope lachrymal sac Fenestration drainage unsuccessfully etc. Refractory dacryagogatresia patient is due to the following lacrimal passage structural deterioration of lacrimal ductule, to link up success rate almost nil by identical to lacrimal ductule or tear house steward and nasal cavity.Treatment means common is at present that namely shunt valve operation adopts discarded original lacrimal passage system, again implants new shunt valve, tear is directly introduced nasal cavity or maxillary sinus from conjunctival sac.But still there is more shortcoming: 1, the discarded original lacrimal passage of shunt valve operation at present, changes normal anatomical structures, bring change or the discomfort of outward appearance to patient.2, due to the surgical wound surface that shunt valve implantation place is new, under the stimulation of shunt valve, often there is granulation hyperplasia, block fistulization oral and make operative failure.3, mostly existing shunt valve is generally adopt the design of gravity drainage principle, straight tube, and lack initiatively drainage function, postoperative patient still has excessive tear possibility, and the secretions of nasal cavity often enters conjunctival sac with during sneeze through adopted pipe.4, shunt valve adopts glass or metal to make at present, and smooth surface lacks fixture, postoperatively often occurs tubing shifts, deviates from, and to make troubles even operative failure to patient.
Summary of the invention
The present invention is directed to the deficiency that prior art exists, providing a kind of is that complicated obstructed lacrimal passage patient recovers initiatively tear drainage, reduces the tear drainage device of the novel imitative tear pump physiological mechanism of anatomical physiology structural change.
Realize above-mentioned purpose, the present invention adopts following technical scheme: a kind of tear drainage device of imitative tear pump physiological mechanism, it is characterized in that: include lacrimal ductule, collector tube, communicating pipe and outlet, described lacrimal ductule one end vertically on roll over setting, the end of the dacryocanalicular other end upwarps rear and the through setting of collector tube, described collector tube becomes vertical relative to lacrimal ductule and arranges, dacryocanalicularly upwarp the middle and upper part that end is connected to collector tube, the upper end inner diameter of collector tube is greater than lower end inner wall diameter, the upper end of collector tube is blind end, lower end is conduction terminal, the lower end of collector tube is connected with communicating pipe, become bending to arrange communicating pipe and there is a kink and a vertical portion upwards, its kink is connected with collector tube lower end is through, vertical portion is pressed close to collector tube and is arranged, the upper end of vertical portion is connected with outlet.
By adopting such scheme, the lacrimal ductule of this device provides tear pumping function, the liquid collection section of simulating lachrymal sac and the exit portion linked up with nasal cavity, in the lacrimal ductule of lacrimal ductule implant into body, collector tube is identical with nasal cavity by export department under being embedded in nasal mucosa, by simulation lacrimal ductule pump, tear is entered collector tube, and enter nasal cavity.The principle of lacrimal ductule pump is as follows: one, close dacryocanalicular vertical upper folding place flesh contraction when eyelid starts and first lacrimal ductule is closed, prevent tear from backflowing; Two, along with closing eyelid further, before tarsus, flesh shrinks, and lacrimal ductule shortens, and in lacrimal ductule, pressure raises, and compressing tear enters collector tube; Three, subcutaneous on lacrimal ductule be rich in elastic fibers, the total tube opening of tear instantaneous closedown when opening eyelid, and lacrimal ductule chamber expands and forms negative pressure, and tear is sucked lacrimal ductule, starts next circulation; If when four lacrimal secretion are more, continue out eyelid state tear house steward-lachrymal sac structure and be in open state, by siphonage, too much tear is sucked collector tube.In addition, this patent adopts imitative tear pump physiology to make, perform the operation with lachrymal sac Fenestration drainage under conchoscope and combine, realize as lacrimal ductule, tear duct obstruction, effective treatment of the patient such as unsuccessfully after little lachrymal sac patient and dacryocystorhinostomy, Operation is convenient, meet lacrimal passage anatomical physiology, reduce patient's sense of discomfort.
The present invention is arranged further: described lacrimal ductule is made up of metal spring outsourcing medical macromolecular materials, and collector tube and communicating pipe partly all adopt macromolecular material.Described dacryocanalicular length is 8-14mm, dacryocanalicular internal diameter is 0.8-1.2mm, dacryocanalicular external diameter is 1.2-1.6mm, the vertical upper folding height 0.8-1.2mm of lacrimal ductule one end, the length of described collector tube is 10-14mm, and the external diameter of collector tube upper end is 5-7mm internal diameter is 2.5-3.5mm, collector tube lower end external diameter be 3-3.5mm internal diameter be 1-1.4mm, the internal diameter of described communicating pipe is 1-1.4mm, and the kink of communicating pipe and the drop of vertical portion upper end are 3.5-4.5mm; The described dacryocanalicular end that upwarps with respect to the horizontal plane becomes 25 degree of-40 degree angle to upwarp, and described collector tube upper end exceeds lacrimal ductule and upwarps 1.5-2.5mm, and the end of described outlet is provided with the shirt rim of turning up.
By adopting such scheme, make structure of the present invention more reasonable, better effects if, the end exported in addition is provided with the shirt rim of turning up can well prevent granulation hyperplasia, blocking outlet.
Below in conjunction with drawings and embodiments, the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the overall perspective view of the embodiment of the present invention;
Fig. 2 is the side view of the embodiment of the present invention.
Specific embodiment
As shown in Fig. 1-Fig. 2, a kind of tear drainage device of imitative tear pump physiological mechanism, include lacrimal ductule 1, collector tube 2, communicating pipe 3 and outlet 4, described lacrimal ductule 1 one end is vertically gone up folding 11 and is arranged, the end 12 of the other end of lacrimal ductule 1 upwarps rear and the through setting of collector tube 2, described collector tube 2 is relative to the vertical setting of lacrimal ductule 1 one-tenth, lacrimal ductule 1 upwarp the middle and upper part that end 12 is connected to collector tube 2, upper end 21 inner diameter of collector tube 2 is greater than lower end 22 inner diameter, the upper end 21 of collector tube 2 is blind end, lower end 22 is conduction terminal, the lower end 22 of collector tube 2 is connected with communicating pipe 3, the bending of 3 one-tenth, communicating pipe is arranged has a kink 31 and a vertical portion 32 upwards, its kink 31 is connected with collector tube 2 lower end 22 is through, vertical portion 32 is pressed close to collector tube 2 and is arranged, the upper end of vertical portion 32 is connected with outlet 4.Adopt such scheme, the lacrimal ductule 1 of this device provides tear pumping function, the liquid collection section of simulating lachrymal sac and the exit portion linked up with nasal cavity, the lacrimal ductule footpath of lacrimal ductule 1 implant into body, collector tube 2 is identical with nasal cavity by export department under being embedded in nasal mucosa, by simulation lacrimal ductule 1, tear is entered collector tube 2, and enter nasal cavity.
In embodiments of the present invention, described lacrimal ductule 1 is made up of metal spring outsourcing medical macromolecular materials, collector tube 2 and communicating pipe 3 part all adopt macromolecular material.The length of described lacrimal ductule 1 is 8-14mm, the internal diameter of lacrimal ductule 1 is 0.8-1.2mm, the external diameter of lacrimal ductule 1 is 1.2-1.6mm, the vertical upper folding 11 height 0.8-1.2mm of lacrimal ductule 1 one end, the length of described collector tube 2 is 10-14mm, the external diameter of collector tube 2 upper end 21 is 5-7mm internal diameter is 2.5-3.5mm, collector tube 2 lower end 22 external diameter be 3-3.5mm internal diameter be 1-1.4mm, the internal diameter of described communicating pipe 3 is 1-1.4mm, and the kink 31 of communicating pipe 3 is 3.5-4.5mm with the drop of vertical portion 32 upper end; The end that upwarps of described lacrimal ductule 1 with respect to the horizontal plane becomes 25 degree of-40 degree angle to upwarp, and described collector tube 2 upper end exceeds lacrimal ductule 1 and upwarps end 1.5-2.5mm, and the end of described outlet 4 is provided with the shirt rim 41 of turning up.
Claims (3)
1. the tear drainage device of an imitative tear pump physiological mechanism, it is characterized in that: include lacrimal ductule, collector tube, communicating pipe and outlet, described lacrimal ductule one end vertically on roll over setting, the end of the dacryocanalicular other end upwarps rear and the through setting of collector tube, described collector tube becomes vertical relative to lacrimal ductule and arranges, dacryocanalicularly upwarp the middle and upper part that end is connected to collector tube, the upper end inner diameter of collector tube is greater than lower end inner wall diameter, the upper end of collector tube is blind end, lower end is conduction terminal, the lower end of collector tube is connected with communicating pipe, become bending to arrange communicating pipe and there is a kink and a vertical portion upwards, its kink is connected with collector tube lower end is through, vertical portion is pressed close to collector tube and is arranged, the upper end of vertical portion is connected with outlet.
2. the tear drainage device of imitative tear pump physiological mechanism according to claim 1, it is characterized in that: described lacrimal ductule is made up of metal spring outsourcing medical macromolecular materials, collector tube and communicating pipe make by medical macromolecular materials, described dacryocanalicular length is 8-14mm, dacryocanalicular internal diameter is 0.8-1.2mm, dacryocanalicular external diameter is 1.2-1.6mm, the vertical upper folding height 0.8-1.2mm of lacrimal ductule one end, the length of described collector tube is 10-14mm, the external diameter of collector tube upper end is 5-7mm internal diameter is 2.5-3.5mm, collector tube lower end external diameter be 3-3.5mm internal diameter be 1-1.4mm, the internal diameter of described communicating pipe is 1-1.4mm, the kink of communicating pipe and the drop of vertical portion upper end are 3.5-4.5mm.
3. the tear drainage device of imitative tear pump physiological mechanism according to claim 1 and 2, it is characterized in that: the described dacryocanalicular end that upwarps with respect to the horizontal plane becomes 25 degree of-40 degree angle to upwarp, described collector tube upper end exceeds lacrimal ductule and upwarps end 1.5-2.5mm, and the end of described outlet is provided with the shirt rim of turning up.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853684.XA CN104586565B (en) | 2014-12-31 | 2014-12-31 | A kind of tear drainage device of imitative tear pump physiological mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853684.XA CN104586565B (en) | 2014-12-31 | 2014-12-31 | A kind of tear drainage device of imitative tear pump physiological mechanism |
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| Publication Number | Publication Date |
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| CN104586565A true CN104586565A (en) | 2015-05-06 |
| CN104586565B CN104586565B (en) | 2016-08-24 |
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| CN201410853684.XA Active CN104586565B (en) | 2014-12-31 | 2014-12-31 | A kind of tear drainage device of imitative tear pump physiological mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9539170B1 (en) | 2016-08-22 | 2017-01-10 | Hamdah J. S. Adaie | Lacrimal duct therapy device |
| CN107981969A (en) * | 2017-12-29 | 2018-05-04 | 温州医科大学附属眼视光医院 | Drainage substitutes biomimetic scaffolds in a kind of glaucoma |
| CN114652485A (en) * | 2022-04-02 | 2022-06-24 | 温州医科大学附属眼视光医院 | Artificial lacrimal duct with function of tear pump for caruncle pathway |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030130612A1 (en) * | 1996-10-25 | 2003-07-10 | Moazed Kambiz Thomas | Transnasal lacrimal insert |
| WO2008057238A2 (en) * | 2006-10-27 | 2008-05-15 | Felder Robin A | Microelectronic biosensor plug |
| CN201283017Y (en) * | 2008-11-10 | 2009-08-05 | 王志全 | Drainage tube for dacryocyst and nasal cavity anastomosis operation |
| WO2010080987A2 (en) * | 2009-01-09 | 2010-07-15 | Becker Bruce B | Side-by-side lacrimal intubation threader and method |
| CN201831985U (en) * | 2010-10-18 | 2011-05-18 | 山东福瑞达医疗器械有限公司 | Drainage device for lacrimal sac operation |
-
2014
- 2014-12-31 CN CN201410853684.XA patent/CN104586565B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030130612A1 (en) * | 1996-10-25 | 2003-07-10 | Moazed Kambiz Thomas | Transnasal lacrimal insert |
| WO2008057238A2 (en) * | 2006-10-27 | 2008-05-15 | Felder Robin A | Microelectronic biosensor plug |
| CN201283017Y (en) * | 2008-11-10 | 2009-08-05 | 王志全 | Drainage tube for dacryocyst and nasal cavity anastomosis operation |
| WO2010080987A2 (en) * | 2009-01-09 | 2010-07-15 | Becker Bruce B | Side-by-side lacrimal intubation threader and method |
| CN201831985U (en) * | 2010-10-18 | 2011-05-18 | 山东福瑞达医疗器械有限公司 | Drainage device for lacrimal sac operation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9539170B1 (en) | 2016-08-22 | 2017-01-10 | Hamdah J. S. Adaie | Lacrimal duct therapy device |
| CN107981969A (en) * | 2017-12-29 | 2018-05-04 | 温州医科大学附属眼视光医院 | Drainage substitutes biomimetic scaffolds in a kind of glaucoma |
| CN107981969B (en) * | 2017-12-29 | 2023-07-14 | 苏州朗目医疗科技有限公司 | Replacement bionic bracket for glaucoma internal drainage |
| CN114652485A (en) * | 2022-04-02 | 2022-06-24 | 温州医科大学附属眼视光医院 | Artificial lacrimal duct with function of tear pump for caruncle pathway |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104586565B (en) | 2016-08-24 |
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