CN118058876A - Suture-free suspension type artificial lens and implantation method thereof - Google Patents
Suture-free suspension type artificial lens and implantation method thereof Download PDFInfo
- Publication number
- CN118058876A CN118058876A CN202410349999.4A CN202410349999A CN118058876A CN 118058876 A CN118058876 A CN 118058876A CN 202410349999 A CN202410349999 A CN 202410349999A CN 118058876 A CN118058876 A CN 118058876A
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- Prior art keywords
- lens
- traction
- suture
- loop
- artificial lens
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000725 suspension Substances 0.000 title claims abstract description 18
- 238000002513 implantation Methods 0.000 title abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009958 sewing Methods 0.000 abstract 1
- 210000001508 eye Anatomy 0.000 description 4
- 208000002177 Cataract Diseases 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 210000005252 bulbus oculi Anatomy 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000004410 intraocular pressure Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 210000003786 sclera Anatomy 0.000 description 2
- 208000006550 Mydriasis Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 210000002159 anterior chamber Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004240 ciliary body Anatomy 0.000 description 1
- 230000001886 ciliary effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 210000000184 posterior capsule of the len Anatomy 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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- Prostheses (AREA)
Abstract
The invention discloses a suture-free suspension type artificial lens and an implantation method thereof. The artificial lens comprises an artificial lens optical part, lens loop, a fixed spinous process, a traction positioning line and a traction needle, wherein the lens loop is a semicircular lens loop extending from the edge of the artificial lens optical part, the number of the lens loop is 2-6, and the lens loop is symmetrically distributed along the edge of the artificial lens optical part; the fixed spinous process is provided with a thicker end and a thinner end, the thicker end is fixedly connected to the symmetrical central axis of the edge of the ring body of the crystal loop, and the thinner end is connected with a traction positioning line; one end of the traction positioning wire is connected with the fixed spinous process, and the other end is connected with the traction needle. The artificial lens can be filled through the implanter, is simple and convenient to operate and does not need to be sewn and fixed, the structural design of the artificial lens enables the optical part of the artificial lens to be well fixed, adverse effects caused by sewing and fixing and suture breakage are avoided, and the artificial lens has good clinical application prospect.
Description
Technical Field
The invention relates to a suture-free suspension type artificial lens and an implantation method thereof, belonging to the technical field of artificial lenses.
Background
The main current method for cataract surgery is cataract phacoemulsification plus intraocular lens implantation, along with the continuous maturity of the surgical technique of ophthalmologists, most patients are implanted with intraocular lens in one stage, but for some special cases, such as the history of ocular trauma, cataracts in overmaturity, complications in surgery and the like, the posterior capsule of the lens can be broken or the zonules are separated, at this time, the intraocular lens cannot be implanted according to the conventional method, and the surgical method of intraocular lens suspension is often selected, namely, doctors sew the intraocular lens into eyes of the patients by using a suture line through a suspension method. The intraocular lens suspension technology is various in clinic, 10-0 polypropylene suture is mostly adopted, clinical observation shows that 28% of patients with suture breakage appear on the suture in 6 years, the conventional method is difficult to guide the suture to operate, the operation time is long, and postoperative complications are easy to appear.
Disclosure of Invention
The purpose of the invention is that: aiming at the defects of the prior art, the invention provides a suture-free suspension type intraocular lens.
In order to achieve the above object, the present invention provides a suture-free suspension intraocular lens comprising an intraocular lens optic, a lens haptic, a fixation spinous process, a traction positioning wire, and a traction needle, wherein:
The lens loop is a semicircular lens loop extending from the edge of the optical part of the artificial lens, the number of the lens loop is 2-6, and the lens loop is symmetrically distributed along the edge of the optical part of the artificial lens;
The fixed spinous process is provided with a thicker end and a thinner end, the thicker end is fixedly connected to the symmetrical central axis of the edge of the ring body of the crystal loop, and the thinner end is connected with a traction positioning line;
one end of the traction positioning wire is connected with the fixed spinous process, and the other end of the traction positioning wire is connected with the traction needle.
Preferably, the material of the intraocular lens optic is acrylate.
Preferably, the fixed spinous process is of a conical structure, the round bottom of the fixed spinous process is connected with the crystal loop, and the tip part of the fixed spinous process is connected with the traction positioning line.
Preferably, the traction positioning wire is a polypropylene wire.
Preferably, the traction needle is a metal needle, the thickness specification is 23-34G, and the length is 5-15mm.
Preferably, the artificial lens is implanted in the following manner: implanted by an artificial lens implanter without suture fixation.
Compared with the prior art, the invention has the beneficial effects that:
(1) The artificial lens can be filled through the implanter, is simple and convenient to operate, can avoid suture operation, avoids using more auxiliary tools such as suture tying and the like and corresponding operation, can reduce operation steps, shortens operation time, reduces operation complications caused by suture aging, fracture and the like, and reduces situations such as crystal inclination, misalignment and the like caused by human operation factors;
(2) The artificial lens has the advantages that the artificial lens structure is ingenious in design and easy to manufacture, the symmetrical lens loop is arranged at the edge of the optical part of the artificial lens, and the traction force in the implantation process can be balanced, so that the position of the optical part of the artificial lens can be adjusted to be centered under the traction action of the traction positioning wire, the direct traction action on the optical part of the artificial lens during implantation is avoided, the fixed spinous process arranged on the lens loop can be well fixed in the tissue of the ciliary body flat part, the artificial lens is well fixed, and the adverse effects caused by suture fixation and suture fracture are avoided.
Drawings
FIG. 1 is a schematic diagram of a structure of a suture-free suspension intraocular lens according to an embodiment;
FIG. 2 is a schematic structural view of a suture-free suspension intraocular lens according to an embodiment;
FIG. 3 is a schematic representation of an intraocular lens structure with 3 lens haptics;
FIG. 4 is a schematic representation of an intraocular lens structure with 4 lens haptics;
FIG. 5 is a prior art implanter picture;
FIG. 6 is a front cross-sectional view of an eye;
FIG. 7 is a side cross-sectional view of an eye;
FIG. 8 is a simulated view of the intraocular lens according to the present invention after implantation;
Reference numerals: 1. an intraocular lens optic; 2. a crystalline haptic; 3. fixing the spinous process; 4. traction positioning line; 5. the needle is pulled.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Examples
The present embodiment provides a suture-free suspension intraocular lens, as shown in fig. 1 to 4, comprising an intraocular lens optic 1, a lens haptic 2, a fixation spinous process 3, a traction positioning wire 4 and a traction needle 5, wherein:
The material of the artificial lens optical part 1 is acrylic ester, the two sides are convex, and the acrylic ester is a folding artificial lens material, has soft texture, has a shape memory function, is foldable, and has a diameter of 4-6.5mm.
The lens loop 2 is a semicircular lens loop extending from the edge of the artificial lens optical part 1, the lens loop 2 is made of medical elastic materials, the elastic materials can conform to traction strain, polyurethane materials can be selected as the elastic materials, the lens loop 2 is used for stabilizing the artificial lens optical part and centering the artificial lens optical part, the number of the lens loops can be 2-6, the lens loops are symmetrically distributed along the edge of the artificial lens optical part, and the total length (diameter) of the lens loop after the artificial lens optical part is added is 10-15mm.
The fixed spinous process 3 is made of hard materials, wherein the hard materials can be medical hard plastics such as Polyethylene (PE) and Polytetrafluoroethylene (PTFE), and can also be medical silicon rubber and other materials, the fixed spinous process 3 is used for being fixed in tissues, is cone-shaped and easy to be buried in the tissues, the implant is easy to be fixed while the damage is small, the circular bottom of the fixed spinous process 3 is fixedly connected to the symmetrical central axis of the edge of the ring body of the crystal loop 2, the tip of the fixed spinous process 3 is connected with a traction positioning line 4, the traction positioning line 4 is brought into the tissue of the ciliary flat part, the height from the tip to the bottom surface of the fixed spinous process 3 is 0.3-2mm, and the dimension design is smaller than the thickness of the eyeball wall, even if the implant is completely buried in the spherical wall and the eyeball is not pierced.
The traction positioning wire 4 can be made of polypropylene suture with the same length as the surgical suture and is 1-10cm, one end of the traction positioning wire is connected with the fixed spinous process 3, and the other end is connected with the traction needle 5.
The traction needle 5 can be a metal thin needle with the specification of 23-34G (G represents the thickness of the metal needle) and the length of 5-15mm.
The intraocular lens is filled or pre-filled by an implanter, which is derived from the prior art, as shown in fig. 5.
The artificial lens implantation process provided by the invention comprises the following steps:
(1) Mydriasis and conventional ophthalmic disinfection towel;
(2) According to the intraocular pressure condition, the post-perfusion is selected or not, under the condition of guaranteeing the intraocular pressure stability, the conventional two incisions of the artificial crystal implantation are performed, the primary incision is at the position of 10:00-12:00, and the secondary incision is at the position of 2:00-3:00;
(3) Positioning at the position of 2.0-3.5mm behind the limbus for scleral marking;
(4) The traction needle 5 carried by the artificial lens enters the eye from the main incision and passes out from the scleral mark point;
(5) Implanting artificial lens into anterior chamber with lens implanter, and adjusting the position of lens to be behind pupil;
(6) Tensioning the traction positioning wire 4 outwards the sclera to center the crystal position;
(7) The traction positioning wire 4 is pulled tightly, and the traction positioning wire 4 is cut close to the sclera, so that the traction positioning wire 4 automatically retracts into the scleral tissue. Fig. 8 is a simulated view of the intraocular lens according to the present invention after implantation.
The above embodiments are only preferred embodiments of the present invention, and are not limited in any way and in essence, and it should be noted that modifications and additions may be made to those skilled in the art without departing from the scope of the invention.
Claims (6)
1. A suture-free suspension intraocular lens, comprising an intraocular lens optic, a lens haptic, a fixation spinous process, a traction alignment wire, and a traction needle, wherein:
The lens loop is a semicircular lens loop extending from the edge of the optical part of the artificial lens, the number of the lens loop is 2-6, and the lens loop is symmetrically distributed along the edge of the optical part of the artificial lens;
The fixed spinous process is provided with a thicker end and a thinner end, the thicker end is fixedly connected to the symmetrical central axis of the edge of the ring body of the crystal loop, and the thinner end is connected with a traction positioning line;
one end of the traction positioning wire is connected with the fixed spinous process, and the other end of the traction positioning wire is connected with the traction needle.
2. The suture-free suspension intraocular lens of claim 1 wherein the material of the intraocular lens optic is an acrylate.
3. The suture-free suspension intraocular lens of claim 1 wherein the fixation spinous process is of conical configuration with a rounded bottom portion connected to the lens haptics and a pointed portion connected to the traction alignment.
4. The suture-free suspension intraocular lens of claim 1 wherein the traction positioning wire is a polypropylene wire.
5. The suture-free suspension intraocular lens of any one of claims 1 to 4 wherein the traction needle is a metal needle with a gauge of 23-34G and a length of 5-15mm.
6. The suture-free suspension intraocular lens of claims 1-4, wherein the intraocular lens is implanted in the manner of: implanted by an artificial lens implanter without suture fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410349999.4A CN118058876A (en) | 2024-03-26 | 2024-03-26 | Suture-free suspension type artificial lens and implantation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410349999.4A CN118058876A (en) | 2024-03-26 | 2024-03-26 | Suture-free suspension type artificial lens and implantation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118058876A true CN118058876A (en) | 2024-05-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410349999.4A Pending CN118058876A (en) | 2024-03-26 | 2024-03-26 | Suture-free suspension type artificial lens and implantation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118058876A (en) |
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2024
- 2024-03-26 CN CN202410349999.4A patent/CN118058876A/en active Pending
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