Suture-free tension ring intraocular lens

Abstract

The utility model relates to the technical field of intraocular lenses, and discloses a suture-free tension ring intraocular lens which comprises an intraocular lens optical part and a tension ring, the tension ring is arranged outside the intraocular lens optical part, and the intraocular lens optical part and the tension ring are connected through a plurality of small elastic belts. At least two hard spinous processes are arranged on the outer side of the tension ring, the other ends of the hard spinous processes are connected with sutures, and the other ends of the sutures are connected with fine needles. The tension ring is in a C shape, namely an opening is formed in the tension ring, and the hard spinous process is in a conical shape. According to the utility model, the hard spinous process is arranged, so that the artificial lens is prevented from being fixed by suturing and knotting, the surgical wound is reduced, the surgical operation steps are reduced, the surgical time is shortened, and complications such as suture fracture are avoided; the tension ring is arranged, so that the accuracy of the implantation position of the intraocular lens is improved, and the conditions of lens inclination, non-centering and the like caused by manual operation factors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial lenses, in particular to a suture-free tension ring artificial lens. Background Art

[0002] There are various intraocular lens suspension techniques in clinical practice, most of which use 10-0 polypropylene sutures. According to clinical observations, 28% of patients experienced suture breakage after 6 years of use. Conventional methods of guiding suture operation are difficult, the operation time is long, and intraoperative complications are prone to occur.

[0003] In addition, the high stability and precise centering of the artificial lens position are important factors to ensure high postoperative visual recovery. However, existing artificial lenses can cause postoperative suture-related inflammation, suture degradation and breakage leading to artificial lens dislocation, or severe eccentricity and tilt of the artificial lens leading to complications of significantly reduced visual quality, or severe refractive errors, which require replacement of the artificial lens and are relatively risky. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing artificial lens implantation may cause complications due to suture breakage and other problems, resulting in the patient replacing the artificial lens and a high surgical risk.

[0005] In order to solve the above technical problems, the technical solution of the utility model is to provide a suture-free tension ring intraocular lens, comprising an intraocular lens optical part and a tension ring, wherein the tension ring is arranged outside the intraocular lens optical part, and the intraocular lens optical part and the tension ring are connected by a plurality of elastic bands, at least two hard spinous processes are arranged on the outside of the tension ring, the other end of the hard spinous process is connected to a suture, and the other end of the suture is connected to a fine needle.

[0006] Optionally, the tension ring is C-shaped, that is, an opening is provided on it, and the hard spinous process is conical.

[0007] Optionally, the diameter of the tension ring is 10-15 mm, the height of the hard spinous process is -2 mm, the length of the suture is 1-10 cm, the specification of the fine needle is 23-24G, and the length is 5-15 mm.

[0008] In summary, the utility model has at least one of the following beneficial effects:

[0009] 1. The utility model is provided with a hard spinous process, so as to avoid fixing the artificial lens by suturing with sutures or tying knots, thereby reducing surgical trauma, reducing surgical operation steps, shortening the operation time, and avoiding complications such as suture breakage.

[0010] 2. The utility model is provided with a tension ring to improve the accuracy of the implantation position of the artificial lens and reduce the situations such as the tilt and misalignment of the lens caused by human operation factors.

[0011] 3. The utility model is provided with a tension ring and an elastic band. Under a relatively small pressure, the distance between the tension ring and the optical part of the artificial lens can be reduced by the elastic action and lateral rotation of the elastic band. When the pressure exceeds the lateral rotation range of the elastic band, the tension ring can be slightly translated toward the cornea or sclera to adapt to the state of the eyeball, ensuring that the optical part of the artificial lens is kept centered in the eye under any movement of the eyeball. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a side view of the structure of the utility model;

[0014] Figure 3 Three schematic diagrams of hard spinous process structures are provided for the utility model;

[0015] Figure 4 A schematic diagram of the utility model is provided with four hard spinous process structures;

[0016] Figure 5 This is a schematic diagram of the utility model after implantation;

[0017] Figure 6 This is a simulation diagram of the utility model moving forward horizontally toward the cornea when the eyeball is under pressure;

[0018] In the figure: 21, optical part of artificial lens; 22, tension ring; 23, hard spinous process; 24, suture; 25, fine needle; 26, elastic band. DETAILED DESCRIPTION

[0019] The following combination Figure 1-6 The utility model is described in further detail.

[0020] The utility model discloses a suture-free tension ring intraocular lens, referring to Figure 1 and Figure 2 , including an artificial lens optical part 21 and a tension ring 22, the tension ring 22 is C-shaped, that is, it is provided with an opening, the tension ring 22 is arranged outside the artificial lens optical part 21, and the artificial lens optical part 21 and the tension ring 22 are connected by a plurality of elastic bands 26, at least two hard spinous processes 23 are arranged on the outside of the tension ring 22, the hard spinous process 23 is cone-shaped, the other end of the hard spinous process 23 is connected to a suture 24, and the other end of the suture 24 is connected to a fine needle 25.

[0021] Specifically, the intraocular lens optical part 21 is similar to a camera lens, used for light transmission, soft in texture, with shape memory function, foldable, with a diameter of 4-6.5mm, and can match the implanter; the tension ring 22 is made of elastic material, with a diameter of 10-15mm; the hard spinous process 23 is conical, used for fixation in the tissue, with a height of 0.3-2mm, such as Figure 3 and Figure 4 As shown, three, four or more hard spinous processes 23 can be provided, and are evenly arranged outside the tension ring 22;

[0022] The fine needle 25 is made of metal, with a specification of 23-34G and a length of 5-15mm; the suture 24 is 1-10cm long and has a diameter that matches the fine needle 25; four or more elastic bands 26 are arranged, symmetrically distributed, and are made of elastic material with shape memory function, which fix the tension ring 22 to the periphery of the optical part 21 of the artificial lens.

[0023] Reference Figure 5 The method for implanting the suture-free tension ring intraocular lens of the utility model is as follows:

[0024] Step 1: dilate the patient's eyeball, perform routine ophthalmic disinfection and drape, and place the suture-free tension ring intraocular lens into the lens implanter (the implanter is an existing device);

[0025] Step 2: Decide whether to perform post-perfusion according to the patient's intraocular pressure. Under the condition of ensuring stable intraocular pressure, perform conventional two-incision intraocular lens implantation, with the main incision at the 10 o'clock to 12 o'clock position and the secondary incision at the 2 o'clock to 3 o'clock position;

[0026] Step 3: Locate and mark the sclera 2.0-3.5 mm behind the limbus;

[0027] Step 4: The fine needle 25 enters the eye through the main incision and exits from the scleral marking point;

[0028] Step 5: implant the suture-free tension ring intraocular lens into the anterior chamber with a lens implanter, and adjust the position so that it is placed behind the pupil and the hard spinous process 23 penetrates into the tissue;

[0029] Step 6: Pull the suture 24 toward the outside of the sclera to center the position of the suture-free tension ring intraocular lens;

[0030] Step 7: Tighten the suture 24, cut the suture 24 close to the sclera, and allow the suture 24 to retract into the sclera tissue by itself, thus completely implanting the suture-free tension ring intraocular lens.

[0031] The utility model is provided with a hard spinous process 23, and the suture 24 is only used for positioning, and no suturing is required. After positioning, it is tightened and cut and buried in the tissue. The fixation of the optical part 21 of the artificial lens is achieved by means of the outward expansion of the tension ring 22 and the fixation of the spines of the hard spinous process 23, avoiding the fixation of the artificial lens by suturing or tying knots, reducing surgical trauma, reducing surgical operation steps, shortening operation time, avoiding complications such as suture breakage, and providing the tension ring 22 to improve the accuracy of the artificial lens implantation position and reduce the tilting and misalignment of the lens caused by human operation factors.

[0032] In addition, the utility model is provided with a tension ring 22 and an elastic band 26. Under a relatively small pressure state, the distance between the tension ring 22 and the optical part 21 of the artificial lens can be reduced by the elastic action and lateral rotation action of the elastic band 26. Figure 6 When the pressure exceeds the lateral rotation range of the elastic band, the tension ring 22 can slightly translate toward the cornea or sclera to adapt to the state of the eyeball and keep the optical part of the artificial lens 21 from being skewed or twisted, thereby ensuring that the optical part of the artificial lens 21 is kept centered in the eye under any movement of the eyeball.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A suture-free tension ring intraocular lens, characterized in that: The invention comprises an artificial lens optical part (21) and a tension ring (22), wherein the tension ring (22) is arranged outside the artificial lens optical part (21), and the artificial lens optical part (21) and the tension ring (22) are connected by a plurality of elastic bands (26), and at least two hard spinous processes (23) are arranged outside the tension ring (22), and the other end of the hard spinous process (23) is connected to a suture (24), and the other end of the suture (24) is connected to a fine needle (25).

2. The suture-free tension ring intraocular lens according to claim 1, characterized in that: The tension ring (22) is C-shaped, that is, an opening is provided on it, and the hard spinous process (23) is conical.

3. The suture-free tension ring intraocular lens according to claim 1, characterized in that: The diameter of the tension ring (22) is 10-15 mm, the height of the hard spinous process (23) is 0.3-2 mm, the length of the suture (24) is 1-10 cm, the specification of the fine needle (25) is 23-24G, and the length is 5-15 mm.

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