CN108309557A - A kind of reverse microporators of cornea - Google Patents
A kind of reverse microporators of cornea Download PDFInfo
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- CN108309557A CN108309557A CN201810270370.5A CN201810270370A CN108309557A CN 108309557 A CN108309557 A CN 108309557A CN 201810270370 A CN201810270370 A CN 201810270370A CN 108309557 A CN108309557 A CN 108309557A
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- extension rod
- cornea
- microporators
- reverse
- punch
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- 210000004087 cornea Anatomy 0.000 title claims abstract description 63
- 210000003128 head Anatomy 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 2
- 208000028006 Corneal injury Diseases 0.000 abstract 1
- 206010047571 Visual impairment Diseases 0.000 abstract 1
- 230000003902 lesion Effects 0.000 abstract 1
- 208000029257 vision disease Diseases 0.000 abstract 1
- 230000004393 visual impairment Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 13
- 239000010410 layer Substances 0.000 description 11
- 210000002555 descemet membrane Anatomy 0.000 description 7
- 210000002889 endothelial cell Anatomy 0.000 description 7
- 210000000871 endothelium corneal Anatomy 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 210000002159 anterior chamber Anatomy 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000003511 endothelial effect Effects 0.000 description 3
- 230000004438 eyesight Effects 0.000 description 3
- 230000002980 postoperative effect Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000002054 transplantation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 201000004569 Blindness Diseases 0.000 description 1
- 208000002177 Cataract Diseases 0.000 description 1
- 206010010996 Corneal degeneration Diseases 0.000 description 1
- 206010011033 Corneal oedema Diseases 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 241001632486 Metaplax Species 0.000 description 1
- 206010058046 Post procedural complication Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 201000004781 bullous keratopathy Diseases 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- 230000006727 cell loss Effects 0.000 description 1
- 239000013553 cell monolayer Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 201000004778 corneal edema Diseases 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005218 dilaceration Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 210000003038 endothelium Anatomy 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 210000000056 organ Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 210000004927 skin cell Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 230000004412 visual outcomes Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention relates to a kind of reverse microporators of cornea, including upper end handle, lower end handle, upper end extension rod, lower end extension rod, adjusting rod, torsionspring, extension rod fixed ring, adjusting rod fixed ring, gasket, the deep axis of control and punch.Its advantage is shown：The reverse microporators of the cornea are bonded people's cornea, it can be under the premise of not corneal damage front layer, the muddy part of thin plate layer under direct-view, pointedly after quick ring cutting optical zones of cornea, it is divested so as to subsequent, visual impairment caused by optics area plant bed muddiness after solution lamellar keratoplasty, and plant piece is involved in primary lesion recurrence after avoiding lamellar keratoplasty to a certain extent, improves medical resource utilization rate.
Description
Technical field
The present invention relates to the field of medical instrument technology, specifically, being a kind of reverse microporators of cornea.
Background technology
Keratonosus is one of the main diseases causing blindness in China, and corneal transplantation is as a kind of highest organ shifting of success rate
It plants, is its important treatment and means of recovering lost eyesight.Corneal transplantation is carried out so far, and it is available to have a Multioperation, and traditional
Penetrating Keratoplasty (replacing holostrome recipient cornea with the donor's cornea of health) is compared, lamellar keratoplasty be then
After the pathological tissues for cutting off recipient cornea, the transparent donor plate layer corneal graft of respective thickness is transplanted, is possessed to donor's cornea material
Material requires that relatively low, postoperative complication is few and is not susceptible to the advantages such as rejection；But Postoperative recurrent rate height and Visual outcome
Difference is its main problem.
The plant bed muddinesses that show as are recurred after lamellar keratoplasty gradually to aggravate more, and gradually involve plant piece, and less serious case influences
Visual quality, severe one affect vision, or even need to re-replace plant piece；The postoperative remaining matrix of plant bed is in the healing with plant piece
Cheng Zhong has different degrees of cicatrization, if scar is located on optical zones of cornea, equally can also affect vision.
The cornea of people can be divided into from outside to inside：Epithelium layer, bowman's lamina, hypothallus, descemet's membrane, endothelial cell
Layer.Descemet's membrane can regenerate from endothelial cells secrete after damage；Corneal endothelium is a cell monolayer, normal adult angle
The film endothelial layer gross area is about 147mm2, average endothelial cell density is 2700~3000/mm2Left and right.It is being grown up, angle
It cannot be regenerated after film endothelial cell damage, repair and increase by neighbouring endothelial cell, extend and migrate.When corneal endothelium is thin
Born of the same parents' density is less than 500/mm2Left and right, will occur decompensation, leads to corneal edema, or even bullous keratopathy occur.
Thin plate layer after the round cornea of a diameter of 2mm, descemet's membrane and interior are divested if the transparency for ensureing optics area
Skin cell layer only causes about 2% endothelial cell Loss Rate, and the endothelium much smaller than after ultrasonic emulsification for cataract 10% or more is thin
Born of the same parents' Loss Rate；And it is based on above-mentioned physiological foundation, defective region is after a period of time by self-healing.This can not only effectively improve trouble
Person's Postoperative visual acuity, and will not corneal endothelium cause excessive damage.
Title：The automatic interceptor of cornea；The patent No.：CN203693888 comprising one forms in hollow cylindrical, lower end
The cutter hub of the annular edge of a knife, cutter hub installation is on one end of a pressure handle, and the other end axis connection of pressure handle is in one end of a pedestal, pedestal
The other end on correspond to the position of pressure handle upper knife body and be equipped with one for placing the fixed bit of donor's cornea.It can be pressed by pressing
Handle cuts to fast power-saving appropriately sized donor's cornea.With the difference of the present invention：Above-mentioned utility model cannot carry out ring cutting depth
The adjustment of degree is only applicable to the holostrome interception of isolated cornea, can not be applied to intercept in the rear thin plate layer of body cornea.
Title：Descemet membrane dilaceration forceps；The patent No.：CN201658459, it includes tweezer handle, and the head end of tweezer handle is equipped with
The bending to raise up is cranked arm, and the head end cranked arm is equipped with the pointed tweezer head being folded upward at.Suitable for being torn in corneal endothelial trans-plantation
Except entocornea.It is distinguished with the present invention：Above-mentioned utility model is removed for entocornea and is designed, if being used directly to
Reverse thin plate layer after divesting muddy plant bed after lamellar keratoplasty, does not simply fail to accurately control the depth removed, and take
Arduously, it be easy to cause and removes face out-of-flatness or even muddy the case where aggravating.
But the reverse microporators of a kind of cornea about the present invention yet there are no report.
Invention content
It is an object of the present invention to provide a kind of reverse microporators of cornea.
To achieve the above object, the technical solution adopted by the present invention is that：
A kind of reverse microporators of cornea, the reverse microporators of the cornea include upper end handle (1), lower end hand
Handle (2), lower end extension rod (4), adjusting rod (5), torsionspring (6), extension rod fixed ring (7), is adjusted upper end extension rod (3)
Bar fixed ring (8), gasket (9), the deep axis (10) of control and punch (20)；The upper surface of described upper end handle (1) is equipped with antiskid thread
(11), upper end extension rod (3) is fixedly connected on the head of the upper end handle (1), in described upper end extension rod (3) inside
Empty, left side opening；The head of the upper end extension rod (3) is fixedly connected with extension rod fixed ring (7)；The upper end extension rod
(3) head end and adjusting rod (5) head end are hinged with rivet (31), and torsionspring (6), torsionspring are housed on the rivet (31)
(6) both ends are individually fixed in adjusting rod (5) and upper end extension rod (3) inner wall；It is fixedly connected on the head of the adjusting rod (5)
There is adjusting rod fixed ring (8)；The front end of the extension rod fixed ring (7) and adjusting rod fixed ring (8) is equipped with positioning protrusion
(71)；The gasket (9) is in cylindrical shape, and the mellow and full curved surface (91) of indent, the circle are equipped in the bottom surface of the gasket (9)
Moisten curved surface (91) and is equipped with two mutually perpendicular mark lines (92)；Position is opposite there are two being set in the side of the gasket (9)
Location hole (93)；The location hole (93) and the positioning protrusion (71) combine；It is set below the lower end handle (2)
There are antiskid thread (11), the tail portion of the lower end handle (2) to be fixedly connected with upper end handle (1)；The upper end handle (1) and
Tweezer shape is integrally formed in lower end handle (2)；It is fixedly connected with lower end extension rod (4) on the head of the lower end handle (2), under described
The front end of end extension rod (4) is vertically fixedly connected with the deep axis (10) of control；The control depth axis (10) is in integrally cylindrical shape, in institute
The upper surface for stating the deep axis (10) of control is equipped with protrusion curved surface (110), and external screw thread (120) is equipped in the side for controlling deep axis (10)；Institute
Internal thread (210) on the external screw thread (120) and punch (20) stated combines；The punch (20) is the cylinder of inner hollow
Shape is equipped with internal thread (210) on the inner wall of the punch (20)；It is gradually thinning and be in upwards in the side wall of the punch (20)
Horn-like expansion finally forms closed-loop type cutter head (220) in upper end.
The length of the upper end handle (1) and lower end handle (2) is 10cm, and the upper end extension rod (3) and lower end extend
The length of bar (4) is 2cm, the adjusting rod (5) a length of 1cm.
The head end of the head end and lower end extension rod (4) of the upper end extension rod (3) is the distance between in its natural state
1cm。
It is at an angle between positioning protrusion (71) on the adjusting rod (5) and adjusting rod fixed ring (8), and the angles α are more than 79 degree
Less than 84 degree.
Described gasket (9) a height of 2mm, a diameter of 4mm；The aperture of the location hole (93) is 1mm；The mellow and full curved surface
(91) radius of curvature is 7.8mm；Line between two location holes (93) is parallel to a wherein mark line (92)；Gasket
(9) material is polymethyl methacrylate.
The rate radius value of deep axis (10) the upper process curved surface (110) of control is 6.8mm, the screw pitch of side external screw thread (120)
20μm。
The outer diameter of the punch (20) is 2mm, and the angle that punch (20) side is expanded upwards is β, and β is 8.5 degree.
The control depth axis (10) is 10 μm higher than the punch (20), and total height about 1mm when the two screws completely.
The invention has the advantages that：
1, the material of gasket of the present invention uses polymethyl methacrylate, and with the high grade of transparency, refractive index is small, cost
The characteristics of low, easy processing；The design of gasket lower surface mark line simultaneously, patient's art is accurately positioned over convenient for patient by gasket center
The central visual axis mark point of eye.
2, the reverse microporators of cornea of the invention, can carry out the replacement of gasket by pressing adjusting rod, and step is simple；
3, extension rod fixed ring and adjusting rod fixed ring of the invention are located at gasket both sides, not only reduce to visual area
Block, and the design enable gasket between two fixed ring protrusions line rotation, ensure that the present invention to different-thickness
When cornea carries out reverse micropore making, it is smooth that pairing is remained to up and down.
4, on gasket of the present invention the radius of curvature of mellow and full curved surface and the deep axis upper process curved surface of control radius of curvature, meet people angle
Film physiological camber can fully be bonded cornea, in addition the design of perforating type, can rapidly to the muddy part of thin plate layer after cornea into
Row ring cutting, and incisxal edge is neat, avoids rotary-cut repeatedly and causes the consequences such as irregular, the incisxal edge descemet's membrane stripping of incisxal edge；
5, internal thread and externally threaded design between the deep axis of present invention control and punch can not only be punched according to being adjusted needed for individual
Depth, moreover it is possible to closed-loop type cutter head, high financial profit are replaced after edge of a knife rust is used for multiple times.
6, there is the deep axis of control of the invention corneal Endothelium face micropore to make the supporting role in area simultaneously, can not damage week
It effectively prevent punching under the premise of enclosing endothelial cell too deep.
7, punch of the invention is in horn-like expansion (expansion angle β is 8.5 °) upwards, the design can make incisxal edge perpendicular to
Cornea interior surface is conducive to the healing in follow-up micropore area.
Description of the drawings
Attached drawing 1 is a kind of structural schematic diagram of the reverse microporators of cornea.
Attached drawing 2 is that a kind of upper end handle of the reverse microporators of cornea, lower end handle, upper end extension rod, lower end extend
The schematic diagram that bar combines.
Attached drawing 3 is a kind of upper end extension rod and extension rod fixed ring of the reverse microporators of cornea, adjusting rod and adjusting
The combination schematic diagram of bar fixed ring.
Attached drawing 4 is a kind of gasket construction schematic diagram of the reverse microporators of cornea.
Attached drawing 5 is a kind of structural schematic diagram for controlling deep axis, punch of the reverse microporators of cornea.
Attached drawing 6 is a kind of plan view that control depth axis, the punch of the reverse microporators of cornea combine.
Attached drawing 7 is a kind of adjusting rod of the reverse microporators of cornea, adjusting rod fixed ring, the floor map of punch.
Attached drawing 8 is a kind of partial schematic diagram of the reverse microporators of cornea.
Attached drawing 9 is a kind of use plan view of the reverse microporators of cornea.
Specific implementation mode
With reference to embodiment and with reference to attached drawing, the invention will be further described.
Reference numeral and component part involved in attached drawing is as follows：
1, upper end handle
11, antiskid thread
2, lower end handle
3, upper end extension rod
31, rivet
4, lower end extension rod
5, adjusting rod
6, torsionspring
7, extension rod fixed ring
71, positioning protrusion
8, adjusting rod fixed ring
9, gasket
91, mellow and full curved surface
92, mark line
93, location hole
10, deep axis is controlled
110, protrusion curved surface
120, external screw thread
20, punch
210, internal thread
220, closed-loop type cutter head
Embodiment 1
Attached drawing 1 is please referred to, attached drawing 1 is a kind of structural schematic diagram of the reverse microporators of cornea of the present embodiment.It is described
The reverse microporators of cornea include upper end handle (1), lower end handle (2), upper end extension rod (3), lower end extension rod (4),
Adjusting rod (5), torsionspring (6), extension rod fixed ring (7), adjusting rod fixed ring (8), gasket (9), the deep axis (10) of control and punching
Head (20)；
Attached drawing 2, attached drawing 3, attached drawing 8 are please referred to, attached drawing 2 is a kind of upper end of the reverse microporators of cornea of the present embodiment
The schematic diagram that handle, lower end handle, upper end extension rod, lower end extension rod combine, attached drawing 3 is that a kind of cornea of the present embodiment is reverse
The combination schematic diagram of the upper end extension rod and extension rod fixed ring, adjusting rod and adjusting rod fixed ring of microporators, attached drawing 8 are
A kind of partial schematic diagram of the reverse microporators of cornea of the present embodiment.The upper surface of described upper end handle (1) is equipped with anti-skidding spiral shell
Line (11) is fixedly connected with upper end extension rod (3) on the head of the upper end handle (1), and the upper end extension rod (3) is internal
Hollow, left side opening；The head of the upper end extension rod (3) is fixedly connected with extension rod fixed ring (7)；The upper end extension rod
(3) head end and adjusting rod (5) head end are hinged with rivet (31), and torsionspring (6), torsionspring are housed on the rivet (31)
(6) both ends are individually fixed in adjusting rod (5) and upper end extension rod (3) inner wall；It is fixedly connected on the head of the adjusting rod (5)
There is adjusting rod fixed ring (8)；The front end of the extension rod fixed ring (7) and adjusting rod fixed ring (8) is equipped with positioning protrusion
(71)；
Attached drawing 4 is please referred to, attached drawing 4 is a kind of gasket construction schematic diagram of the reverse microporators of cornea of the present embodiment.
The gasket (9) is in cylindrical shape, and the mellow and full curved surface (91) of indent, the mellow and full song are equipped in the bottom surface of the gasket (9)
Face (91) is equipped with two mutually perpendicular mark lines (92)；Position is opposite there are two being set in the side of the gasket (9) determines
Position hole (93)；The location hole (93) and the positioning protrusion (71) combine；
Attached drawing 2, attached drawing 5, attached drawing 6 are please referred to, attached drawing 2 is a kind of upper end of the reverse microporators of cornea of the present embodiment
The schematic diagram that handle, lower end handle, upper end extension rod, lower end extension rod combine, attached drawing 5 is that a kind of cornea of the present embodiment is reverse
The deep axis of control of microporators, the structural schematic diagram of punch, attached drawing 6 is a kind of reverse microporators of cornea of the present embodiment
The plan view that the deep axis of control, punch combine.Antiskid thread (11), the lower end handle (2) are equipped with below the lower end handle (2)
Tail portion be fixedly connected with upper end handle (1)；Tweezer shape is integrally formed in the upper end handle (1) and lower end handle (2)；Described
The head of lower end handle (2) is fixedly connected with lower end extension rod (4), and the front end of the lower end extension rod (4) is vertically fixedly connected
There is the deep axis (10) of control；The control depth axis (10) is in integrally cylindrical shape, and protrusion is equipped in the upper surface of the deep axis (10) of the control
Curved surface (110) is equipped with external screw thread (120) in the side for controlling deep axis (10)；On the external screw thread (120) and punch (20)
Internal thread (210) combines；The punch (20) is the cylindrical shape of inner hollow, is equipped on the inner wall of the punch (20)
Internal thread (210)；The punch (20) side wall upwards gradually it is thinning and be in horn-like expansion, finally upper end formed closed loop
Type cutter head (220).
Attached drawing 1, attached drawing 7 are please referred to, attached drawing 1 is a kind of structural representation of the reverse microporators of cornea of the present embodiment
Figure, attached drawing 7 are that the adjusting rods of the reverse microporators of cornea of the present embodiment a kind of, adjusting rod fixed ring, the plane of punch are shown
It is intended to.The length of the upper end handle (1) and lower end handle (2) is 10cm, the upper end extension rod (3) and lower end extension rod
(4) length is 2cm, the adjusting rod (5) a length of 1cm；The head end and lower end extension rod (4) of the upper end extension rod (3)
Head end, be 1cm the distance between in its natural state；The adjusting rod (5) and the positioning protrusion in adjusting rod fixed ring (8)
(71) at an angle between, and the angles α are more than 79 degree and are less than 84 degree；Described gasket (9) a height of 2mm, a diameter of 4mm；The location hole
(93) aperture is 1mm；The radius of curvature of the mellow and full curved surface (91) is 7.8mm；Line between two location holes (93) is flat
Row is in a wherein mark line (92)；The material of gasket (9) is polymethyl methacrylate；Deep axis (10) upper process of the control is bent
The rate radius value in face (110) is 6.8mm, 20 μm of the screw pitch of side external screw thread (120)；The outer diameter of the punch (20) is 2mm, institute
It is β to state the angle that punch (20) side is expanded upwards, and β is 8.5 degree；The control depth axis (10) is higher than the punch (20)
10 μm, and the two rotation completely and when total height about 1mm.
Embodiment 2
Attached drawing 1, attached drawing 9 are please referred to, attached drawing 1 is a kind of structural representation of the reverse microporators of cornea of the present embodiment
Figure, attached drawing 9 are a kind of use plan views of the reverse microporators of cornea of the present embodiment.
The use process and method of the reverse microporators of cornea：
The central visual axis of preoperative label patient's art eye, OCT clearly plants the interface of piece and plant bed, and measures the interface to angle
The thickness of surface in film, before the start of the surgery under ophthalmic operating microscope by the punching depth of the reverse microporators of cornea into
Row adjustment.
When screwing completely, the latter upper end is 10 μm higher than the former for the deep axis (10) of control and punch (20)；According to required depth, often
Punch (20) is screwed out into 1 circle, punch (20) moves up 20 μm.Do telltale mark prior to outer corneal surface in art, after in temporo side angle film
Edge does the notch of 3mm.Current scour causes descemet's membrane to remove when to avoid displacement viscoelastic agent, therefore nothing is persistently injected in anterior chamber
Bacterium air is to maintain anterior chamber.The deep axis (10) of control and punch (20) and lower end extension rod (4) enter anterior chamber, gasket (9) are moved to pre-
The position first marked ensures that mark line (92) crosspoint of gasket (9) lower surface is overlapped with cornea mark point.Mediate upper end simultaneously
Handle (1), lower end handle (2), you can produce the micropore of diameter 2mm in cornea interior surface, utilize Tweezers for eye surgery by micropore area afterwards
Interior corneal posterior lamella, descemet's membrane and endothelial layer is removed at the interface of plant piece certainly.So it not only ensure that peritreme
It is neat and metaplax layer divest thickness, and substantially reduce operating difficulty and time.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, without departing from the principle of the present invention, can also make several improvement and supplement, these are improved and supplement also should be regarded as
Protection scope of the present invention.
Claims (8)
1. a kind of reverse microporators of cornea, which is characterized in that the reverse microporators of the cornea include upper end handle
(1), lower end handle (2), upper end extension rod (3), lower end extension rod (4), adjusting rod (5), torsionspring (6), extension rod are fixed
Ring (7), adjusting rod fixed ring (8), gasket (9), the deep axis (10) of control and punch (20)；The upper surface of described upper end handle (1) is equipped with
Antiskid thread (11) is fixedly connected with upper end extension rod (3), the upper end extension rod on the head of the upper end handle (1)
(3) inner hollow, left side opening；The head of the upper end extension rod (3) is fixedly connected with extension rod fixed ring (7)；On described
It holds extension rod (3) head end and adjusting rod (5) head end hinged with rivet (31), torsionspring (6) is housed on the rivet (31), turn round
The both ends for turning spring (6) are individually fixed in adjusting rod (5) and upper end extension rod (3) inner wall；It is solid on the head of the adjusting rod (5)
Surely it is connected with adjusting rod fixed ring (8)；The front end of the extension rod fixed ring (7) and adjusting rod fixed ring (8) is equipped with positioning
Raised (71)；The gasket (9) is in cylindrical shape, and the mellow and full curved surface (91) of indent, institute are equipped in the bottom surface of the gasket (9)
It states mellow and full curved surface (91) and is equipped with two mutually perpendicular mark lines (92)；Position there are two being set in the side of the gasket (9)
Opposite location hole (93)；The location hole (93) and the positioning protrusion (71) combine；Under the lower end handle (2)
Face is equipped with antiskid thread (11), and the tail portion of the lower end handle (2) is fixedly connected with upper end handle (1)；The upper end handle
(1) and tweezer shape is integrally formed in lower end handle (2)；It is fixedly connected with lower end extension rod (4) on the head of the lower end handle (2),
The front end of the lower end extension rod (4) is vertically fixedly connected with the deep axis (10) of control；The control depth axis (10) is in integrally cylinder
Shape is equipped with protrusion curved surface (110) in the upper surface of the deep axis (10) of the control, external screw thread is equipped in the side for controlling deep axis (10)
(120)；Internal thread (210) on the external screw thread (120) and punch (20) combines；The punch (20) is inner hollow
Cylindrical shape, on the inner wall of the punch (20) be equipped with internal thread (210)；It is gradual upwards in the side wall of the punch (20)
It is thinning and be in horn-like expansion, finally upper end formed closed-loop type cutter head (220).
2. the reverse microporators of cornea according to claim 1, which is characterized in that the upper end handle (1) and lower end
The length of handle (2) is 10cm, and the length of the upper end extension rod (3) and lower end extension rod (4) is 2cm, the adjusting rod
(5) a length of 1cm.
3. the reverse microporators of cornea according to claim 1, which is characterized in that the head of the upper end extension rod (3)
The head end at end and lower end extension rod (4) is 1cm the distance between in its natural state.
4. the reverse microporators of cornea according to claim 1, which is characterized in that the adjusting rod (5) and adjusting rod
It is at an angle between positioning protrusion (71) in fixed ring (8), and the angles α are more than 79 degree and are less than 84 degree.
5. the reverse microporators of cornea according to claim 1, which is characterized in that described gasket (9) a height of 2mm,
A diameter of 4mm；The aperture of the location hole (93) is 1mm；The radius of curvature of the mellow and full curved surface (91) is 7.8mm；Two fixed
Line between position hole (93) is parallel to a wherein mark line (92)；The material of gasket (9) is polymethyl methacrylate.
6. the reverse microporators of cornea according to claim 1, which is characterized in that deep axis (10) upper process of the control is bent
The rate radius value in face (110) is 6.8mm, 20 μm of the screw pitch of side external screw thread (120).
7. the reverse microporators of cornea according to claim 1, which is characterized in that the outer diameter of the punch (20) is
2mm, the angle that punch (20) side is expanded upwards is β, and β is 8.5 degree.
8. the reverse microporators of cornea according to claim 1, which is characterized in that described in control depth axis (10) ratio
Punch (20) it is 10 μm high, and total height about 1mm when the two screws completely.
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| JPS6257550A (en) * | 1985-06-27 | 1987-03-13 | パトリク・グリユントラ− | Apparatus for transplanting cornea of human eye |
| CN2132492Y (en) * | 1992-07-15 | 1993-05-12 | 杨朝忠 | Cornea cutter |
| CN2255838Y (en) * | 1996-05-14 | 1997-06-11 | 张毅 | Improved corneoscleral punch |
| CN203183129U (en) * | 2013-04-02 | 2013-09-11 | 中国人民解放军第三军医大学第三附属医院 | Iris root pore biting device |
| CN203693888U (en) * | 2013-09-30 | 2014-07-09 | 深圳职业技术学院 | Automatic corneal cutter |
| CN106880440A (en) * | 2017-03-31 | 2017-06-23 | 首都医科大学附属北京同仁医院 | A kind of board-like tweezers of ophthalmic |
| CN208741271U (en) * | 2018-03-29 | 2019-04-16 | 上海市同济医院 | The reverse microporators of cornea |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6257550A (en) * | 1985-06-27 | 1987-03-13 | パトリク・グリユントラ− | Apparatus for transplanting cornea of human eye |
| CN2132492Y (en) * | 1992-07-15 | 1993-05-12 | 杨朝忠 | Cornea cutter |
| CN2255838Y (en) * | 1996-05-14 | 1997-06-11 | 张毅 | Improved corneoscleral punch |
| CN203183129U (en) * | 2013-04-02 | 2013-09-11 | 中国人民解放军第三军医大学第三附属医院 | Iris root pore biting device |
| CN203693888U (en) * | 2013-09-30 | 2014-07-09 | 深圳职业技术学院 | Automatic corneal cutter |
| CN106880440A (en) * | 2017-03-31 | 2017-06-23 | 首都医科大学附属北京同仁医院 | A kind of board-like tweezers of ophthalmic |
| CN208741271U (en) * | 2018-03-29 | 2019-04-16 | 上海市同济医院 | The reverse microporators of cornea |
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| CN108309557B (en) | 2024-04-02 |
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