CN203815706U - Biotype sclera contraction belt - Google Patents
Biotype sclera contraction belt Download PDFInfo
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- CN203815706U CN203815706U CN201420207273.9U CN201420207273U CN203815706U CN 203815706 U CN203815706 U CN 203815706U CN 201420207273 U CN201420207273 U CN 201420207273U CN 203815706 U CN203815706 U CN 203815706U
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- sclera
- retina
- biotype
- contraction bands
- detachment
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Abstract
The utility model discloses a biotype sclera contraction belt, which is of belt shape as a whole; the cross section is of arc shape; the middle is thickest; the belt becomes narrow from the middle to the two sides gradually in arc transition; the integral length is 3-40mm; the thickness of the middle is 1-3mm; the thickness of the two sides is 0.5-2mm; the belt width is 3-8mm; the biotype sclera contraction belt can be applied with a biotype rear sclera reinforcing strip; sclera expansion can be contracted and restricted for treating highly myopic macula lutea retina disengaging and full retina disengaging and some other non0value-added retina disengaging; the retina structure and function are maintained and protected; the base material comes from animal tracheae, ligament, large vessel or cartilage; by Genipin crosslinking treatment, the intensity is increased, the elasticity and hardness are suitable, the histocompatibility is good, the complication is little, the base material won't be easily absorbed, and the insufficient of retina disengaging inner and outer operation is avoided.
Description
Technical field
This utility model relates to ophthalmic medical instrument, is specifically related to biotype sclera contraction bands.
Background technology
Detachment of retina is the common disease of clinical ophthalmology, be subject to the restriction of current detachment of retina treatment means, the clinical efficacy of detachment of retina is often poor, the detachment of retina that particularly high myopic eye patient occurs, refractory more, easily blinding, high myopia detachment of retina blinding is even considered to irreversible and uncurable disease.
The main cause of high myopia detachment of retina is relevant with eye sclera continuous expansion, sclera continuous expansion, and choroid retina is also just followed expansion, therefore attenuation gradually, optical fundus occurs that leopard stricture of vagina shape changes, and atrophy, degeneration, ceasma etc. occur; If choroid retina is followed expansion and is relatively lagged behind, will cause separating between layer of retina, i.e. retinoschisis and detachment of retina, separates between choroid and sclera, i.e. detachment of choroid; Vitreous chamber expands along with Sclera Cavity expands together, and secondary liquefaction of vitreous, bar rope form.The sclera continuous expansion of high myopic eye, choroid retina is followed expansion under Vitrea support (intraocular pressure), for a long time in tight state, thus head particularly eye generation wound or clash into after, very easily cause retinal hole and detachment of retina.And vitreous body bar rope also can play a part certain to high myopic eye retinoschisis and disengaging.Therefore, if shunk and restriction peripapillary scleral ectasia, will make the expansion of choroid retina alleviate, vitreous retraction also can be eased, and choroid retina is easily followed and approached sclera, and retinal hole can be easily closed, and detachment of retina is easily resetted.
In clinical ophthalmology treatment, it is Main Means that high myopia surgery of retinal detachment resets at present, and traditional operation method mainly contains Nei Lu and from outside two kinds.The treatment principle of interior road operation is: excision vitreous body is removed traction, injecting gas or silicone oil in vitreous chamber, retina is pressed on top, retina is further expanded, resetted though retina can approach sclera, further retina attenuation and the atrophy of expansion increase the weight of, because sclera is still in continuous expansion, after vitreous chamber GAS ABSORPTION or silicone oil removal, retina has again the danger departing from, the Gu Nei often curative effect extreme difference of performing the operation on road.The treatment principle of from outside operation is: sclera is pressed on application pad tabletting or encircling band top, makes the sclera protuberance that caves in, i.e. sclera ridge, makes retina approach sclera, vitreous retraction alleviation, and detachment of retina is resetted.With respect to the operation of interior road, from outside operation is few to the disturbance of ophthalmic, and retinal function obtains protection and easily recovers, and therefore, the from outside operation of Retinal Detachment Surgery is better than the operation of interior road.But from outside operation remains in some defects, not that to limit and shrink peripapillary scleral ectasia be object, but the distance of pressing scleral shortening retina to separate by top, make Retinal Detachment Surgery, the pad tabletting and the encircling band material that adopt are non-biological material, as silica gel or silicon sponge etc., can not merge with sclera, easily there is rejection, cross section is ellipse or squared design, band is sewed up and is fixed on sclera, attach not tight with sclera, scleral surface protuberance is higher, there is time cavity gap dropsy under conjunctiva to form, there is the risk infecting, only better to the detachment of retina curative effect before ambitus, but because not making sclera strength increase, particularly can not stop rear utmost point portion sclera further to be expanded, therefore from outside operation still can not be treated the macula lutea detachment of retina larger to vision harm and full detachment of retina.
Therefore, should be fully recognized that peripapillary scleral ectasia is the key link of high myopia detachment of retina, and peripapillary scleral ectasia is mainly determined by gene, still can not prevent clinically at present, therefore should take to shrink and limit the measure of peripapillary scleral ectasia, retina expansion and vitreous retraction are alleviated, the retina disengaging of loosening is resetted.This new operation method should be the correct direction for the treatment of high myopia detachment of retina, but there is no suitable contraction band, and this operation is also difficult to realize.
Along with the development of tissue engineering, new material technology is applied clinical beginning.Biomaterial toughness through crosslinking curing processing is high, mechanical strength increases, and anticollagenase degradation capability strengthens, and physicochemical property is stable, removes antigen, and histocompatibility is good, has wide application prospects clinically.The bovine pericardium of glutaraldehyde cross-linking is generally for clinical, closed and be used for the treatment of various congenital or posteriority cardiovascular disease separately or with the material such as polyester flake gradually, also start extensive use at Urology Surgery and orthopaedics field, can make various prostheses and ligament substitute, in medical science shaping field, crosslinked with collagen or the hyaluronic acid being cross-linked are used for the treatment of facial wrinkles and depression.At present, biomembrane material being processed to the cross-linking agent adopting is mainly glutaraldehyde.Through the about 0.25-0.34mm of bovine pericardium thickness of glutaraldehyde cross-linking cured, the mesothelial cell of placenta percreta comes off substantially, Jin Sheng mesothelial cell lower floor.In outer connective tissue layer, the adipose cell of Cheng Congzhuan is all lost.In fibrous layer, collagen fiber and elastic fibers structural integrity, form firmly cross-linked structure between collagen molecules, and mechanical strength obviously improves, and fracture strength can reach 2.45kg/mm2.Removed a large amount of soluble proteins, mucopolysaccharide and glycoprotein, being cross-linked of collagen fiber, covers and has blocked antigenicity group, and its antigenicity is reduced greatly.But after the biomembrane material implant into body of glutaraldehyde cross-linking, the release glutaraldehyde of can degrading, has cytotoxicity, affect the safety that biomembrane material is implanted, and calcification has easily occurred.There are some researches show, genipin is better than glutaraldehyde as biomembrane cured cross-linking agent.
Utility model content
In order to solve the problems of the technologies described above, the technical scheme that this utility model adopts is to provide a kind of biotype sclera contraction bands, described biotype sclera contraction bands has the belt body of strip, it is thick that the cross section of described belt body is pars intermedia, the arc sheet that both sides portion is thin, and the arc radius that lateral surface is corresponding is greater than the arc radius that medial surface is corresponding, described both sides portion is symmetrically distributed in the center line both sides of described biotype sclera contraction bands, the limit portion of described both sides portion is circular arc, the entire length of described belt body is 3～40mm, interior thickness is 1～3mm, both sides thickness is 0.5～2mm, bandwidth is 3～8mm, the base material of described biotype sclera contraction bands derives from trachea, ligament, trunk or the cartilage of animal, and by the processing of genipin crosslinking curing.
In such scheme, described animal is pig, cattle or sheep.
In such scheme, the base material of described contraction bands is 60%～95% by the crosslinking curing degree of cross linking after treatment.
The clinical practice principle and advantage of the biotype contraction bands that this utility model provides: by peripapillary scleral ectasia or detachment of retina situation, determine position and scope that sclera need to shrink, choose the size of sclera contraction bands, contraction bands can be sheared arbitrarily as required in operation.Contraction bands is parallel or perpendicular to equator, and latch closure is placed on sclera, and mattress suture is fixed, tension suture, contraction bands elastic shrinkage, related sclera shrinks together, peripapillary scleral ectasia is alleviated, and retina expansion and vitreous retraction are also eased thereupon, and retina is loosened to depart from and resetted.Contraction bands cross section is arc plate, the shape of similar crescent, this curved design, match with the form of sclera, the suture that is strained and fixed, can make sclera shrink more, the sclera ridge that ophthalmic forms is more flat, can not cause amphiblestroid damage once again, it is more smooth that scleral surface also maintains, and do not cause lacuna to cause infection.
Biotype sclera contraction bands of the present utility model, be applicable to treat the detachment of retina that high myopia peripapillary scleral ectasia causes, some do not have the obviously eye generation detachment of retina of expansion of sclera, as the non-increment phase detachment of retina occurring after low, medium myopia and wound, because of gapped existence between retina and sclera, can be considered that sclera expands relatively, the Therapeutic Method of this contraction sclera also should be suitable for and effectively.
Biotype sclera contraction bands of the present utility model, can shrink and control equator of eye peripapillary scleral ectasia, with can shrink and control the biotype of rear utmost point portion peripapillary scleral ectasia after sclera reinforce band use in conjunction, shrink together sclera, make peripapillary scleral ectasia and vitreous retraction obtain more alleviations, be applicable to treat high myopia macula lutea detachment of retina and full detachment of retina.
The base material of biotype sclera contraction bands of the present utility model derives from trachea, ligament, trunk or the cartilage of animal, and in preparation process, crosslinking curing processing is the operation of one key, adopts genipin to have unique advantage as cross-linking agent.Genipin is a kind of natural cross-linking agent, and avirulence, without carcinogenic and without teratogenecity, genipin is as cross-linking agent solidified biological material, can avoid the deficiency of traditional glutaraldehyde as cross-linking agent, genipin toxicity compared with glutaraldehyde is low, and the material after being cross-linked implants and is difficult for occurring calcification.Select the degree of cross linking to be controlled at 60% to 95%, elasticity and hardness are suitable, and compliance is good, is navy blue, and visual good, convenient operation uses; Anti-degradation capability is strong, is difficult for being absorbed, and mechanical strength increases, can make high myopia sclera continuous expansion be shunk and limit, retina expansion and vitreous retraction are alleviated, and retina departs from and resetted under the state of loosening, and 26S Proteasome Structure and Function obtains long term maintenance and protection, curative effect improves; No antigen, histocompatibility is good, does not produce rejection, the danger reduction of infection.
In a word; biotype sclera contraction bands of the present utility model; there is the effect of shrinking equator of eye sclera; or with biotype after sclera reinforce band use in conjunction; by shrinking more and limiting peripapillary scleral ectasia; be used for the treatment of high myopia macula lutea detachment of retina and full detachment of retina; and some other non-appreciation detachment of retina; maintain preferably and protected amphiblestroid 26S Proteasome Structure and Function; avoid the deficiency of the interior road of current detachment of retina and from outside operation, cracked a difficult problem for the easy blinding of current clinical treatment high myopia detachment of retina weak curative effect.Base material is selected trachea, ligament, trunk or the cartilage etc. of the animals such as pig, cattle or sheep, by crosslinking curing processing, and strength increase, elasticity and hardness are suitable, are difficult for being absorbed, and histocompatibility is good, few intercurrent disease.
Brief description of the drawings
Fig. 1 is the schematic diagram of cross section of the present utility model;
Fig. 2 is front schematic view of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail.
As depicted in figs. 1 and 2, the biotype sclera contraction bands that this utility model provides, it is banded that its entirety is, and cross section is arc sheet, the shape of similar crescent, middle thickness is the thickest, and from centre to both sides, arc-shaped transition narrows gradually, and arc radius corresponding to lateral surface is greater than the arc radius that medial surface is corresponding, entire length is 3～40mm, bandwidth is 3～8mm, and interior thickness is 1～3mm, and both sides thickness is 0.5～2mm; The base material of biotype sclera contraction bands derives from trachea, ligament, trunk or the cartilage of animal, and by the processing of genipin crosslinking curing.Animal is pig, cattle or sheep, but is not limited to this.
The degree of cross linking of contraction bands base material crosslinking curing processing is 60%～95%.
The preparation method of this biotype sclera contraction bands, comprises the following steps:
1) base material is selected: choose animal trachea, ligament, trunk or cartilage through quarantine;
2) base material pretreatment: remove the unnecessary tissue on trachea, ligament, trunk or cartilage, then trachea, ligament, trunk or cartilage are made to rough lumber after de-cell cleaning, cleaning by degreasing;
3) rough lumber is except antigen and cured: remove on rough lumber became uneven even, the part that resistance to tension is poor, puts into the transparent airtight vessel for the treatment of fluid, need to keep or be interrupted concussion or rock, wherein, material volume: solution capacity=1:3～5;
4) smart material screening: remove through step 3) after processing but still inhomogeneous material of thickness, elasticity, hardness and color obtains smart material;
5) prepare molding: as required, by smart material cutting or cut into the contraction bands shape of required specification;
6) packaging: pack;
7) disinfection: contraction bands is carried out to physics or chemical sterilization;
8) obtain the finished product of biotype sclera contraction bands.
Clinical practice principle and the feature of the biotype contraction bands that this utility model provides: by peripapillary scleral ectasia or detachment of retina situation, determine position and scope that sclera need to shrink, choose the size of sclera contraction bands, contraction bands can be sheared arbitrarily as required in operation.Contraction bands is parallel or perpendicular to equator, and latch closure is placed on sclera, and mattress suture is fixed, tension suture, contraction bands elastic shrinkage, related sclera shrinks together, peripapillary scleral ectasia is alleviated, and retina expansion and vitreous retraction are also eased thereupon, and retina is loosened to depart from and resetted.Contraction bands cross section is arc plate, the shape of similar crescent, this curved design, match with the form of sclera, the suture that is strained and fixed, can make sclera shrink more, the sclera ridge that ophthalmic forms is more flat, can not cause amphiblestroid damage once again, sclera shows also to remain more smooth, can not cause lacuna to cause infection.
Biotype sclera contraction bands of the present utility model, can shrink and control equator of eye peripapillary scleral ectasia, can with can shrink and limit after after the biotype of the utmost point portion peripapillary scleral ectasia sclera reinforce band use in conjunction, be applicable to treat macula lutea detachment of retina and the full detachment of retina that high myopia peripapillary scleral ectasia causes, also be applicable to some and there is no the obviously eye generation detachment of retina of expansion of sclera, as the non-increment phase detachment of retina occurring after low, medium myopia and wound, because of gapped existence between retina and sclera, can be considered that sclera has relative expansion.
The base material of biotype sclera contraction bands of the present utility model derives from trachea, ligament, trunk or the cartilage of animal, and in preparation process, crosslinking curing processing is the operation of one key, adopts genipin to have unique advantage as cross-linking agent.Genipin is a kind of natural cross-linking agent, and avirulence, without carcinogenic and without teratogenecity, genipin is as cross-linking agent solidified biological material, can avoid the deficiency of traditional glutaraldehyde as cross-linking agent, genipin toxicity compared with glutaraldehyde is low, and the material after being cross-linked implants and is difficult for occurring calcification.Select the degree of cross linking to be controlled at 60% to 95%, elasticity and hardness are suitable, and compliance is good, is navy blue, and visual good, convenient operation uses; Anti-degradation capability is strong, is difficult for being absorbed, and mechanical strength increases, can make high myopia sclera continuous expansion be shunk and limit, retina expansion and vitreous retraction are alleviated, and retina departs from and resetted under the state of loosening, and 26S Proteasome Structure and Function obtains long term maintenance and protection, curative effect improves; No antigen, histocompatibility is good, does not produce rejection, the danger reduction of infection.
In a word; biotype sclera contraction bands of the present utility model; there is the effect of shrinking equator of eye sclera; or with biotype after sclera reinforce band use in conjunction; by shrinking more and limiting peripapillary scleral ectasia; be used for the treatment of high myopia macula lutea detachment of retina and full detachment of retina; and some other non-appreciation detachment of retina; maintain preferably and protected amphiblestroid 26S Proteasome Structure and Function; avoid the deficiency of the interior road of current detachment of retina and from outside operation, cracked a difficult problem for the easy blinding of current clinical treatment high myopia detachment of retina weak curative effect.Base material is selected trachea, ligament, trunk or the cartilage etc. of the animals such as pig, cattle or sheep, by crosslinking curing processing, and strength increase, elasticity and hardness are suitable, are difficult for being absorbed, and histocompatibility is good, few intercurrent disease.
Below by example to this utility model further instruction, but be not used for limiting scope of the present utility model.
Getting the tendon Bovis seu Bubali tendon of butchering is base material, and cattle is anosis for quarantine, draws materials and will note sterile working with transportation.
Remove impurity and redundance on muscle tendon, with distilled water immersion, disintegrate hemocyte, normal saline soaking and washing, puts into anhydrous alcohol defat, and normal saline soaking and washing, obtains rough lumber.
On removal rough lumber, became uneven is even, the batt material that resistance to tension is poor, put into the transparent airtight vessel for the treatment of fluid, need to keep or be interrupted concussion or rock material volume: solution capacity=1:3～5, the rough lumber of putting into treatment fluid removes antigen and cured under the condition of 15 DEG C～35 DEG C of temperature, 3～35 days processing times, treatment fluid is the alcoholic solution containing genipin 0.1%～2%, and alcohol concentration is 20%～30%, PH5.0～7.0.
Removing elasticity, hardness and the even material of irregular colour is smart material.
Preparation molding, is used cutter or mould, makes by size the contraction bands that shape size is suitable.
For example:
Length 15mm, interior thickness 1mm, both sides thickness 0.5mm, wide 5mm;
Length 55mm, interior thickness 2mm, both sides thickness 0.5mm, wide 4mm;
Length 5mm, interior thickness 2mm, both sides thickness 1.5mm, wide 5mm;
Length 3mm, interior thickness 2mm, both sides thickness 1mm, wide 4mm;
Length 10mm, interior thickness 2.5mm, both sides thickness 1.5mm, wide 6mm.
Pack, chemistry or physical sterilisation treatment, obtain high myopia detachment of retina biotype sclera contraction bands finished product.
This utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, within all falling into protection domain of the present utility model.
Claims (3)
1. biotype sclera contraction bands, it is characterized in that, described biotype sclera contraction bands has the belt body of strip, the cross section of described belt body is the arc sheet that pars intermedia is thick, both sides portion is thin, and the arc radius that lateral surface is corresponding is greater than the arc radius that medial surface is corresponding, described both sides portion is symmetrically distributed in the center line both sides of described biotype sclera contraction bands, the limit portion of described both sides portion is curved, the entire length of described belt body is 3～40mm, interior thickness is 1～3mm, both sides thickness is 0.5～2mm, and bandwidth is 3～8mm; The base material of described biotype sclera contraction bands derives from trachea, ligament, trunk or the cartilage of animal, and by the processing of genipin crosslinking curing.
2. biotype sclera contraction bands as claimed in claim 1, is characterized in that, described animal is pig, cattle or sheep.
3. biotype sclera contraction bands as claimed in claim 1, is characterized in that, the base material of described contraction bands is 60%～95% by the crosslinking curing degree of cross linking after treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207273.9U CN203815706U (en) | 2014-04-25 | 2014-04-25 | Biotype sclera contraction belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207273.9U CN203815706U (en) | 2014-04-25 | 2014-04-25 | Biotype sclera contraction belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203815706U true CN203815706U (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207273.9U Withdrawn - After Issue CN203815706U (en) | 2014-04-25 | 2014-04-25 | Biotype sclera contraction belt |
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| Country | Link |
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| CN (1) | CN203815706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948469A (en) * | 2014-04-25 | 2014-07-30 | 薛安全 | Biologic sclera contraction band and preparing method thereof |
-
2014
- 2014-04-25 CN CN201420207273.9U patent/CN203815706U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948469A (en) * | 2014-04-25 | 2014-07-30 | 薛安全 | Biologic sclera contraction band and preparing method thereof |
| CN103948469B (en) * | 2014-04-25 | 2016-09-14 | 薛安全 | Biotype sclera shrinks band and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |