CN220327551U - Refractive correction implant - Google Patents
Refractive correction implant Download PDFInfo
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- CN220327551U CN220327551U CN202221247590.4U CN202221247590U CN220327551U CN 220327551 U CN220327551 U CN 220327551U CN 202221247590 U CN202221247590 U CN 202221247590U CN 220327551 U CN220327551 U CN 220327551U
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- cornea
- implant
- refractive correction
- wall
- lens
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- 239000007943 implant Substances 0.000 title claims abstract description 63
- 210000004087 cornea Anatomy 0.000 claims abstract description 71
- 210000002159 anterior chamber Anatomy 0.000 claims abstract description 18
- 210000001742 aqueous humor Anatomy 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 9
- 238000010030 laminating Methods 0.000 claims description 6
- 102000008186 Collagen Human genes 0.000 claims description 4
- 108010035532 Collagen Proteins 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 229920001436 collagen Polymers 0.000 claims description 4
- 239000000017 hydrogel Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 7
- 201000010099 disease Diseases 0.000 abstract description 6
- 230000004402 high myopia Effects 0.000 abstract description 3
- 210000002889 endothelial cell Anatomy 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 230000004438 eyesight Effects 0.000 description 6
- 230000035764 nutrition Effects 0.000 description 5
- 235000016709 nutrition Nutrition 0.000 description 5
- 210000000554 iris Anatomy 0.000 description 4
- 210000001585 trabecular meshwork Anatomy 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 208000014733 refractive error Diseases 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- 208000010412 Glaucoma Diseases 0.000 description 2
- 208000029091 Refraction disease Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000004430 ametropia Effects 0.000 description 2
- 210000000399 corneal endothelial cell Anatomy 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000007102 metabolic function Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 206010011033 Corneal oedema Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 208000021921 corneal disease Diseases 0.000 description 1
- 201000004778 corneal edema Diseases 0.000 description 1
- 230000003511 endothelial effect Effects 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002430 laser surgery Methods 0.000 description 1
- 230000002197 limbic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 231100000344 non-irritating Toxicity 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000036573 scar formation Effects 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000004083 survival effect 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (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 utility model discloses a refractive correction implant which is used for being implanted into an anterior chamber of a human eye, and comprises a lens main body, a connecting part and a fitting part, wherein the fitting part is used for being adsorbed on the inner wall of a cornea of the human eye, the lens main body is used for carrying out refractive correction on the eye, the lens main body is positioned in the middle of the inner wall of the cornea, a gap is reserved between the lens main body and the inner wall of the cornea, the connecting part is positioned between the lens main body and the fitting part and is used for connecting the lens main body and the fitting part, and a perforation for circulating aqueous humor in the anterior chamber is formed in the connecting part. The refraction correction implant can treat refraction type ophthalmic diseases including high myopia and the like, does not damage human cornea, and is safe and reliable.
Description
Technical Field
The utility model belongs to the field of ophthalmic treatment equipment, and particularly relates to a refractive correction implant.
Background
For patients with refractive eye diseases, the currently mainstream refractive laser surgery belongs to an irreversible treatment scheme, the vision of the patient is changed by permanently plasticity on the cornea, and the patient can only be corrected by repeated surgery along with the change of the disease of refractive error, so that the cornea damage of the patient is large and the economical efficiency is low. At present, only one type of optical lens ICL product which can realize the effect of treating reversible ametropia and is implanted into eyes is only available on the market, namely, a lens is implanted into eyes through minimally invasive surgery and is subjected to refractive correction, and although the product cannot damage the cornea, the implantation position of the product is positioned between the lens and the iris, the space is narrow, and pupil blocking is easy to cause glaucoma.
Therefore, how to continuously and effectively and safely correct a reversible refraction of a patient is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The utility model mainly solves the technical problem of providing a refractive correction implant, which solves the problems of low refractive correction safety and easy glaucoma in the prior art.
In order to solve the technical problems, the technical scheme adopted by the utility model is to provide a refractive correction implant which is used for being implanted into an anterior chamber of a human eye and comprises a lens main body, a connecting part and a fitting part, wherein the fitting part is used for being adsorbed on the inner wall of a cornea of the human eye, the lens main body is used for carrying out refractive correction on the eye, the lens main body is positioned at the middle position of the inner wall of the cornea, a gap is reserved between the lens main body and the inner wall of the cornea, the connecting part is positioned between the lens main body and the fitting part and is used for connecting the lens main body and the fitting part, and a perforation for circulating aqueous humor in the anterior chamber is formed in the connecting part.
Preferably, the lens body has a diameter in the range of 4mm to 10mm.
Preferably, the lens body has a diameter in the range of 4mm to 7mm.
Preferably, the lens body has a diameter in the range of 4mm to 5mm.
Preferably, the gap between the lens body and the inner wall of the cornea is in the range of 0.5mm to 1.5mm.
Preferably, the upper surface of the lens body is convex or concave, and the lower surface of the lens body is convex or concave.
Preferably, the perforations are evenly disposed around the connection.
Preferably, the perforations are circular or arc-shaped or elongated.
Preferably, there is a distance between the outermost edge of the abutment and the outermost edge of the inner wall of the cornea.
Preferably, the material of the refractive correction implant is collagen polymer or silica gel or acrylic acid or hydrogel.
The beneficial effects of the utility model are as follows: the utility model discloses a refractive correction implant which is used for being implanted into an anterior chamber of a human eye, and comprises a lens main body, a connecting part and a fitting part, wherein the fitting part is used for being adsorbed on the inner wall of a cornea of the human eye, the lens main body is used for carrying out refractive correction on the eye, the lens main body is positioned in the middle of the inner wall of the cornea, a gap is reserved between the lens main body and the inner wall of the cornea, the connecting part is positioned between the lens main body and the fitting part and is used for connecting the lens main body and the fitting part, and a perforation for circulating aqueous humor in the anterior chamber is formed in the connecting part. The refraction correction implant can treat refraction type ophthalmic diseases including high myopia and the like, does not damage human cornea, and is safe and reliable.
Drawings
FIG. 1 is a schematic view of one embodiment of a refractive correction implant of the present utility model;
FIG. 2 is a schematic top view of the embodiment of FIG. 1 (shielding the cornea);
FIG. 3 is a schematic view of another embodiment of a refractive correction implant of the present utility model;
fig. 4 is a schematic top view of the embodiment of fig. 3 (shielding the cornea).
Detailed Description
In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Description of the drawings: arrows in the figures indicate the direction of aqueous flow.
In combination with fig. 1 and 2, the refractive correction implant is used for being implanted into an anterior chamber 4 in a human eye, in actual operation, the refractive correction implant is implanted between a cornea 5 and an iris 6 of a patient through a minimally invasive operation, namely, the refractive correction implant is implanted into the anterior chamber 4 in the eye of the patient through a limbus 7, after the refractive correction implant is stretched in the anterior chamber 4, the refractive correction implant is adsorbed on an inner wall 51 of the cornea, a lens part (namely, a lens main body 1) of the refractive correction implant improves the refractive system performance of the patient, the purpose of refractive correction is achieved, the diopter of the lens main body 1 is subjected to customized optical design according to the vision condition of the patient, and the accuracy of refractive correction is ensured.
Preferably, the refraction correction implant comprises a lens body 1, a connecting part 2 and a fitting part 3, wherein the fitting part 3 is used for being adsorbed on the cornea inner wall 51 of a human body, the lens body 1 is used for refraction correction of eyes, the lens body 1 is positioned at the middle position of the cornea inner wall 51, namely, the lens body 1 covers most of the central visual field of a patient to ensure the refraction correction effect, a gap is reserved between the lens body 1 and the cornea inner wall 51, so that the aqueous humor can enter the gap between the refraction correction implant and the cornea inner wall 51 to provide oxygen and nutrition for endothelial cells at the middle position of the cornea, the normal survival and work of the endothelial cells at the center of the cornea are maintained, the connecting part 2 is positioned between the lens body 1 and the fitting part 3 and is used for connecting the lens body 1 and the fitting part 3, the fitting part 3 is tightly fitted with the cornea inner wall 51, structural support is provided for the implant, the lens body 1 is ensured to be firmly fixed in the anterior chamber 4 due to the adsorption effect of the fitting part 3, the relative stability of the middle position of the cornea inner wall 51 is maintained, thereby refraction correction accuracy is ensured, the aqueous humor 21 is ensured to flow through the inner wall 21 of the lens in the anterior chamber 4, and the aqueous humor 21 can flow through the contact chamber 21 is ensured, and the aqueous humor can flow through the inner wall 21 is ensured, and the inner wall 21 is provided.
Preferably, the thickness of the lens body 1 ranges from 100 micrometers to 4 millimeters, more preferably, the thickness of the lens body 1 ranges from 100 micrometers to 1 millimeter, and even more preferably, the thickness of the lens body 1 ranges from 100 micrometers to 700 micrometers.
Preferably, the thickness of the lens body 1 ranges from 700 microns to 3 millimeters, and more preferably, the thickness of the lens body 1 ranges from 700 microns to 1 millimeter.
Preferably, the diameter of the lens body 1 is in the range of 4mm-10mm, ensuring that the lens body can completely cover the central area of the cornea to ensure the effect of refractive correction.
It is further preferred that the lens body 1 has a diameter in the range of 4mm-7mm.
It is further preferred that the lens body 1 has a diameter in the range of 4mm-5mm.
Preferably, the width of the bonding portion 3 is in the range of 1mm to 5mm, and more preferably, the width of the bonding portion 3 is in the range of 1mm to 3mm.
Preferably, the range of the clearance X1 between the lens main body 1 and the cornea inner wall 51 is 0.5mm-1.5mm, so that the clearance is ensured, the aqueous humor is enabled to flow through and convey nutrition and oxygen, and the clearance is not too large, so that the effect of refraction correction is ensured.
Preferably, the upper surface of the lens body 1 is a convex surface or a concave surface, the lower surface of the lens body 1 is a convex surface or a concave surface, the curvatures of the upper surface and the lower surface of the lens body 1 are designed according to the requirement of refractive correction, and the thickness of the lens body 1 is designed according to the diopter of a patient, which is not described herein.
Preferably, the perforations 21 are evenly disposed around the junction 2, ensuring an even inflow of aqueous humor into the gap between the lens body 1 and the inner wall 51 of the cornea, so that oxygen and nutrients can be evenly and rapidly delivered to the corneal endothelial cells, and ensuring the normal progress of aqueous humor circulation.
Preferably, the perforations 21 are circular or arcuate or elongated.
Preferably, there is a distance X2 between the outermost edge of the applique 3 and the outermost edge of the inner corneal wall 51, i.e. the applique 3 does not completely cover the outermost edge of the inner corneal wall 51, in order to leave room for the subsequent surgical procedure to be operable, while protecting the trabecular meshwork at the limbus 7 site from abrasion of the applique 3 to the trabecular meshwork.
The cornea endothelial cells are mainly divided into cornea central endothelial cells and cornea peripheral endothelial cells, the cornea central endothelial cells are mainly fed by virtue of aqueous humor, the cornea peripheral endothelial cells are mainly fed by virtue of limbus, the laminating part 3 is mainly laminated on the limbic part of the cornea, and the laminating part 3 does not influence the oxygen supply and metabolism of the cornea endothelial cells.
The connecting part 2 is connected with the lens main body 1 and the attaching part 3, so that the overall transition is smooth, that is, the diopter correction implant (implant for short) is integrally designed by adopting smooth optical transition, the lens main body 1 is optically designed according to the vision condition and the requirement of a patient and the angle and the relative position between the lens main body 1 and the cornea 5, so that the purpose of diopter correction is achieved, and meanwhile, a smooth visual field is restored for the patient.
Preferably, the material of the refraction correction implant is collagen polymer or silica gel or acrylic acid or hydrogel, so that safety and no stimulation are ensured, the implant (namely, the lens main body 1, the connecting part 2 and the attaching part 3) has good biocompatibility and excellent optical characteristics, meanwhile, the material of the implant also has flexible and foldable performance, the implant can be automatically unfolded after being implanted into eyes in a folded state, and can be smoothly refolded and taken out, adhesion with intraocular tissues (such as anterior chamber, cornea or iris) is avoided, scars are not formed, the implant material also has the characteristics of high oxygen permeability and the like, the nutrition supply of cornea can be ensured, and the normal metabolic function of cornea is maintained.
Specifically, the attaching portion 3 has high oxygen permeability, and even if the attaching portion 3 is attached to the endothelial cells of the inner wall 51 of the cornea, normal nutrition and oxygen absorption of the endothelial cells are not affected, and the endothelial cells of the cornea can be ensured to maintain their original cell characteristics and functions.
Preferably, in combination with fig. 3 and 4, in another embodiment, the refractive correction implant (simply referred to as implant) comprises a lens body A1 and a fitting portion A2, the lens body A1 is connected to the fitting portion A2, the lens body A1 is used for fitting the middle position of the inner cornea wall a31 of the cornea A3 in the eye and forming an aqueous humor barrier, the lens body A1 is used for refractive correction of the eye, the fitting portion A2 is used for adsorbing the fitting at the peripheral position of the inner cornea wall a31, for a patient whose cornea A3 is damaged or partially damaged and is accompanied with ametropia disease, the implant is implanted between the iris A4 and the cornea A3 of the patient by a minimally invasive operation (the implant is implanted through the limbus A6), the implant is gradually stretched in the anterior cornea A5, and adsorbs the fitting to the inner cornea wall a31 of the cornea A3, on one hand, the effect of replacing or partially replacing the corneal endothelial cells forms the aqueous humor barrier, and on the other hand, the lens body A1 of the implant after optical design is used for treating the diseases including high refractive diseases and the like.
In actual operation, the implant is implanted into the intraocular anterior chamber A5 of a patient through the limbus A6, the implant is completely adsorbed on the cornea inner wall A31 after the anterior chamber A5 is unfolded, the diopter of the lens main body A1 of the implant is customized optical design according to the vision condition of the patient, the diopter system performance of the patient can be obviously improved, and the purpose of refractive correction is achieved.
Preferably, the implant is made of a material having good biocompatibility and excellent optical characteristics; the implant material has the advantages of flexibility, folding property, automatic complete unfolding after implantation in a folded state, smooth refolding and taking out from the limbus A6, no adhesion of tissues and no scar formation. The material of the implant has the characteristics of high oxygen permeability and the like, can ensure the nutrition supply of cornea A3 and maintain the normal metabolic function of cornea A3.
Specifically, the lens body A1 of the implant is completely attached to the inner wall A31 of the cornea, and can play a role of a cornea-aqueous humor barrier to replace an endothelial layer (namely an endothelial cell layer of the cornea) which is already diseased, prevent liquid from transferring to a central stroma layer of the cornea and relieve corneal diseases such as corneal edema.
The implant is integrally designed in a smooth optical transition manner, and the central lens body A1 is optically designed according to the vision condition and the requirement of a patient so as to achieve a specific diopter and achieve the purpose of refractive correction, and simultaneously, the smooth high-quality vision level of the patient is restored.
The lens body A1 of the implant covers a substantial portion of the central field of view of the patient to ensure the effect of refractive correction.
The attaching part A2 is smoothly connected with the lens main body A1, and is adsorbed on the inner wall A31 of the cornea and the periphery thereof after the implant is implanted and stretched.
No additional adhesive layer is needed between the implant and the inner cornea wall A31 to improve the adsorption effect of the implant and the cornea A3, and the support of the implant can be still realized.
Preferably, there is a distance L1 between the outermost edge of the abutment A2 and the outermost edge of the inner corneal wall a31, i.e. the abutment A2 does not completely cover the outermost edge of the inner corneal wall a31, in order to leave operational space for the subsequent surgical operation while protecting the trabecular meshwork at the position of the limbus A6 from abrasion of the abutment 3 to the trabecular meshwork.
Preferably, the width of the bonding portion A2 is in the range of 1mm to 5mm, more preferably, the width of the bonding portion A2 is in the range of 1mm to 4mm, still more preferably, the width of the bonding portion A2 is in the range of 1mm to 3mm.
Preferably, the diameter of the lens body A1 is in the range of 4mm to 10mm.
Further preferably, the diameter of the lens body A1 is in the range of 4mm to 7mm.
Further preferably, the diameter of the lens body A1 is in the range of 4mm to 5mm.
Preferably, the upper surface of the lens body A1 is fit to the inner wall a31 of the cornea, the lower surface of the lens body A1 is convex or concave, the curvatures of the upper surface and the lower surface of the lens body A1 are designed according to the requirement of refractive correction, and the thickness of the lens body A1 is designed according to the diopter of the patient, which is not repeated here.
Preferably, the attaching part A2 is attached to the inner wall A31 of the cornea through electrostatic attraction or a biodegradable adhesive, so that the cornea is more environment-friendly and safer, has stable properties and can not bring side effects to patients.
Preferably, the material of the refractive correction implant is collagen polymer or silica gel or acrylic or hydrogel, which is safer and non-irritating for the patient.
Based on the above embodiment, the utility model discloses a refractive correction implant for implanting into an anterior chamber of a human eye, the refractive correction implant comprises a lens body, a connecting part and a fitting part, the fitting part is used for being adsorbed on the inner wall of a cornea of the human eye, the lens body is used for carrying out refractive correction on the eye, the lens body is positioned at the middle position of the inner wall of the cornea, a gap is reserved between the lens body and the inner wall of the cornea, the connecting part is positioned between the lens body and the fitting part and is used for connecting the lens body and the fitting part, and a perforation for circulating aqueous humor in the anterior chamber is formed in the connecting part. The refraction correction implant can treat refraction type ophthalmic diseases including high myopia and the like, does not damage human cornea, and is safe and reliable.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.
Claims (10)
1. The utility model provides a refraction correction implant for implant anterior chamber in human eye, its characterized in that includes lens main part, connecting portion and laminating portion, laminating portion is used for adsorbing in human cornea inner wall, the lens main part is used for carrying out refraction correction to eyes, the lens main part is located the intermediate position of cornea inner wall, just the lens main part with have the clearance between the cornea inner wall, connecting portion is located the lens main part with between the laminating portion and be used for connecting the lens main part with the laminating portion, offer the confession on the connecting portion the perforation that the aqueous humor in the anterior chamber circulated.
2. The refractive correction implant of claim 1, wherein the lens body has a diameter in the range of 4mm-10mm.
3. The refractive correction implant of claim 2, wherein the lens body has a diameter in the range of 4mm-7mm.
4. A refractive correction implant as in claim 3, wherein the lens body has a diameter in the range of 4mm-5mm.
5. The refractive correction implant of any one of claims 1-4, wherein the gap between the lens body and the inner corneal wall ranges from 0.5mm to 1.5mm.
6. The refractive correction implant of claim 5, wherein the upper surface of the lens body is convex or concave and the lower surface of the lens body is convex or concave.
7. The refractive correction implant of claim 6, wherein the perforations are evenly disposed about the connection.
8. A refractive correction implant as in claim 7, wherein the perforations are circular or arcuate or elongated.
9. The refractive correction implant of claim 8, wherein a distance is provided between an outermost edge of the conforming portion and an outermost edge of the inner corneal wall.
10. A refractive correction implant according to claim 9, wherein the material of the refractive correction implant is collagen polymer or silica gel or acrylic or hydrogel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221247590.4U CN220327551U (en) | 2022-05-23 | 2022-05-23 | Refractive correction implant |
| PCT/CN2023/074463 WO2023226471A1 (en) | 2022-05-23 | 2023-02-03 | Refractive correction implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221247590.4U CN220327551U (en) | 2022-05-23 | 2022-05-23 | Refractive correction implant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220327551U true CN220327551U (en) | 2024-01-12 |
Family
ID=88918320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221247590.4U Active CN220327551U (en) | 2022-05-23 | 2022-05-23 | Refractive correction implant |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN220327551U (en) |
| WO (1) | WO2023226471A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2633095C3 (en) * | 1976-07-20 | 1980-06-04 | Revlon, Inc., New York, N.Y. (V.St.A.) | Artificial inner eye lens |
| US4573998A (en) * | 1982-02-05 | 1986-03-04 | Staar Surgical Co. | Methods for implantation of deformable intraocular lenses |
| NO160823C (en) * | 1987-02-11 | 1989-06-07 | Jens G Hetland | DEVICE FOR INTRA-OCULAR ROOM LENS. |
| US20020010510A1 (en) * | 1998-11-04 | 2002-01-24 | Thomas A. Silvestrini | Variable modulus corneal implant and fabrication methods |
| US6616693B1 (en) * | 2000-05-03 | 2003-09-09 | Advanced Medical Optics, Inc. | Flexible fixation members for angle-supported anterior chamber intraocular lenses |
| JP2002177306A (en) * | 2000-12-18 | 2002-06-25 | Canon Inc | Intraocular lens |
| US8377125B2 (en) * | 2006-04-05 | 2013-02-19 | Anew Optics, Inc. | Intraocular lens with accommodation |
| CN212118353U (en) * | 2019-09-11 | 2020-12-11 | 易虹 | Vision correction system for AMD patient and intraocular lens positioning mechanism |
| CN114948337A (en) * | 2022-05-23 | 2022-08-30 | 苏州朗目医疗科技有限公司 | Refractive correction implant |
| CN114948338A (en) * | 2022-05-23 | 2022-08-30 | 苏州朗目医疗科技有限公司 | Refractive correction implant |
-
2022
- 2022-05-23 CN CN202221247590.4U patent/CN220327551U/en active Active
-
2023
- 2023-02-03 WO PCT/CN2023/074463 patent/WO2023226471A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023226471A1 (en) | 2023-11-30 |
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