CN104586565B - A kind of tear drainage device of imitative tear pump physiological mechanism - Google Patents
A kind of tear drainage device of imitative tear pump physiological mechanism Download PDFInfo
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- CN104586565B CN104586565B CN201410853684.XA CN201410853684A CN104586565B CN 104586565 B CN104586565 B CN 104586565B CN 201410853684 A CN201410853684 A CN 201410853684A CN 104586565 B CN104586565 B CN 104586565B
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- collector tube
- tear
- communicating pipe
- imitative
- dacryocanalicular
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Abstract
The present invention relates to a kind of ophthalmologic operation implant, the most full obstructed lacrimal passage patient provides a kind of imitative lacrimal passage to dissect the tear drainage device of the permanent imitative tear pump physiological mechanism with tear pump physiological mechanism.The present invention adopts the following technical scheme that the tear drainage device of a kind 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 the rear and through setting of collector tube, the dacryocanalicular end that upwarps is connected to the middle and upper part of collector tube, the lower end of collector tube connects communicating pipe, becoming bending to arrange communicating pipe and have a kink and a vertical portion upwards, the upper end of vertical portion connects outlet.By using such scheme, the present invention provides a kind of and recovers actively tear drainage for complicated obstructed lacrimal passage patient, reduces the tear drainage device of the novel imitative tear pump physiological mechanism of anatomical physiology structural change.
Description
Technical field
The present invention relates to a kind of ophthalmologic operation implant, the most full obstructed lacrimal passage patient provides a kind of imitative lacrimal passage to dissect the tear drainage device of the permanent imitative tear pump physiological mechanism with tear pump physiological mechanism.
Background technology
Lacrimal Passage Block is ophthalmology common disease, and clinical manifestation is tear, the pyorrhea etc. of overflowing, hence it is evident that reduce patients ' life quality.The raising required along with people's quality of life, the tear Chang Buneng that overflows is accepted by people.Particularly chronic dacryocystitis is often called " time bomb " that eyeball is other, 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 is significantly raised, but still has certain mortality.Especially for failure after obstruction of lacrimal canaliculus, dacryocystorhinostomy, the lachrymal sac Fenestration drainage Refractory dacryagogatresia patient such as unsuccessfully is due to lacrimal ductule following lacrimal passage structural deterioration under conchoscope, and communication success rate of lacrimal ductule or tear house steward and nasal cavity being coincide is almost nil.The most common treatment means is that shunt valve operation i.e. uses discarded original lacrimal passage system, again implants new shunt valve, from conjunctival sac, tear is introduced directly into nasal cavity or maxillary sinus.But still suffer from more shortcoming: 1, the discarded original lacrimal passage of current shunt valve operation, change normal anatomical structures, bring change or the discomfort of outward appearance to patient.2, owing to being new surgical wound surface at shunt valve implantation, granulation hyperplasia often occurs under the stimulation of shunt valve, block fistulization oral and make operative failure.3, typically mostly existing shunt valve is to use the design of gravity drainage principle, straight tube, lacks actively drainage function, and postoperative patient still has excessive tear possible, and the secretions of nasal cavity often enters conjunctival sac with during sneeze through justice pipe.4, shunt valve uses glass or metal to make at present, and smooth surface lacks fixing device, and postoperative tubing shifts, abjection often occur, makes troubles even operative failure to patient.
Summary of the invention
The present invention is directed to the deficiency that prior art exists, it is provided that a kind of is that complicated obstructed lacrimal passage patient recovers actively 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 the following technical scheme that the tear drainage device of a kind 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 the rear and through setting of collector tube, described collector tube becomes vertically arranged relative to lacrimal ductule, the dacryocanalicular end that upwarps is connected to the middle and upper part of collector tube, the upper end inner diameter of collector tube is more 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 connects communicating pipe, become bending to arrange communicating pipe and there is a kink and a vertical portion upwards, the kink of communicating pipe is through with collector tube lower end to be connected, vertical portion is pressed close to collector tube and is arranged, the upper end of vertical portion connects outlet.
By using such scheme, the lacrimal ductule of this device provides tear pumping function, the liquid collection section simulating lachrymal sac and the exit portion linked up with nasal cavity, lacrimal ductule is implanted in the lacrimal ductule of human body, collector tube is embedded under nasal mucosa by export department identical with nasal cavity, by simulating lacrimal ductule pump, tear is entered collector tube, and enter nasal cavity.The principle of lacrimal ductule pump is as follows: one, closes when eyelid starts flesh at dacryocanalicular vertical upper folding and shrinks and make lacrimal ductule be first shut off, prevents 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 sucks lacrimal ductule, starts next one circulation；If four lacrimal secretion are more, persistently open eyelid state tear house steward-lachrymal sac structure and be in open state, by siphonage, too much tear is sucked collector tube.Additionally, this patent uses imitative tear pump physiology to make, combine with lachrymal sac Fenestration drainage operation under conchoscope, realize such as lacrimal ductule, tear duct obstruction, effective treatment of the patient such as unsuccessfully after little lachrymal sac patient and dacryocystorhinostomy, that operation is implanted is convenient, meet lacrimal passage anatomical physiology, reduce patient's sense of discomfort.
The present invention is arranged so that described lacrimal ductule is made up of metal spring outsourcing medical macromolecular materials further, and collector tube and communicating pipe part all use macromolecular material.Described dacryocanalicular a length of 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 a length of 10-14mm of described collector tube, the external diameter of collector tube upper end is 5-7mm, the internal diameter of collector tube upper end is 2.5-3.5mm, the external diameter of collector tube lower end is 3-3.5mm, the internal diameter of collector tube lower end is 1-1.4mm, the internal diameter of described communicating pipe is 1-1.4mm, and the kink of communicating pipe is 3.5-4.5mm with the drop of vertical portion upper end；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 turned up.
By using such scheme, the structure making the present invention is more reasonable, and effect is more preferable, and the end additionally exported is provided with the shirt rim turned up can well prevent granulation hyperplasia, blocking outlet.
With embodiment, the present invention is described further below in conjunction with the accompanying drawings.
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
nullAs 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，Vertically upper folding 11 setting of described lacrimal ductule 1 one end，The end 12 of the other end of lacrimal ductule 1 upwarps the rear and through setting of collector tube 2，Described collector tube 2 becomes vertically arranged relative to lacrimal ductule 1，The end 12 that upwarps of lacrimal ductule 1 is connected to the middle and upper part of collector tube 2，Upper end 21 inner diameter of collector tube 2 is more 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 connects communicating pipe 3，The bending of 3 one-tenth of communicating pipe is arranged has a kink 31 and a vertical portion 32 upwards，Its kink 31 is through with collector tube 2 lower end 22 to be connected，Vertical portion 32 is pressed close to collector tube 2 and is arranged，The upper end of vertical portion 32 connects outlet 4.Use such scheme, the lacrimal ductule 1 of this device provides tear pumping function, the liquid collection section simulating lachrymal sac and the exit portion linked up with nasal cavity, lacrimal ductule 1 implants the lacrimal ductule footpath of human body, collector tube 2 is embedded under nasal mucosa by export department identical with nasal cavity, by simulating 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, and collector tube 2 and communicating pipe 3 part all use macromolecular material.The a length of 8-14mm of described lacrimal ductule 1, 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 a length of 10-14mm of described collector tube 2, the external diameter of collector tube 2 upper end 21 is 5-7mm, the internal diameter of collector tube 2 upper end 21 is 2.5-3.5mm, the external diameter of collector tube 2 lower end 22 is 3-3.5mm, the internal diameter of collector tube 2 lower end 22 is 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 turned 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 the rear and through setting of collector tube, described collector tube becomes vertically arranged relative to lacrimal ductule, the dacryocanalicular end that upwarps is connected to the middle and upper part of collector tube, the upper end inner diameter of collector tube is more 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 connects communicating pipe, become bending to arrange communicating pipe and there is a kink and a vertical portion upwards, the kink of communicating pipe is through with collector tube lower end to be connected, vertical portion is pressed close to collector tube and is arranged, the upper end of vertical portion connects outlet.
nullThe tear drainage device of imitative tear pump physiological mechanism the most 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 are made by medical macromolecular materials，Described dacryocanalicular a length of 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 a length of 10-14mm of described collector tube，The external diameter of collector tube upper end is 5-7mm，The internal diameter of collector tube upper end is 2.5-3.5mm，The external diameter of collector tube lower end is 3-3.5mm，The internal diameter of collector tube lower end is 1-1.4mm，The internal diameter of described communicating pipe is 1-1.4mm，The kink of communicating pipe is 3.5-4.5mm with the drop of vertical portion upper end.
The tear drainage device of imitative tear pump physiological mechanism the most 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 turned up.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN104586565A CN104586565A (en) | 2015-05-06 |
| CN104586565B true CN104586565B (en) | 2016-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9539170B1 (en) | 2016-08-22 | 2017-01-10 | Hamdah J. S. Adaie | Lacrimal duct therapy device |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201283017Y (en) * | 2008-11-10 | 2009-08-05 | 王志全 | Drainage tube for dacryocyst and nasal cavity anastomosis operation |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5993407A (en) * | 1996-10-25 | 1999-11-30 | Moazed; Kambiz Thomas | Transnasal lacrimal insert |
| US8090426B2 (en) * | 2006-10-27 | 2012-01-03 | Felder Robin A | Microelectronic biosensor plug |
| US8235932B2 (en) * | 2009-01-09 | 2012-08-07 | Becker Bruce B | Side-by-side lacrimal intubation threader and method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201283017Y (en) * | 2008-11-10 | 2009-08-05 | 王志全 | Drainage tube for dacryocyst and nasal cavity anastomosis operation |
| 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 |
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