Implantable pouch support hook structure

Abstract

This invention discloses an implantable capsular support hook structure for implantation inside the lens capsular bag of the eye and extending to the anterior capsular opening. The support hook structure includes a central portion and arc-shaped wings formed on both sides of the central portion. The arc-shaped wings extend towards both sides of the central portion and are arc-shaped in their entirety. The connection between the arc-shaped wings and the central portion forms an angle, and the central portion and the corresponding arc-shaped wing on one side are used to clamp the anterior capsular membrane. This invention's support hook structure, through improved material, possesses strong pulling force and support, and also has a certain degree of elasticity, making it less prone to dislodgement. Utilizing the arc-shaped wings on both sides, it can pull the capsular bag to maintain its anatomical position in the corresponding lens dislocation area, and can construct a large-area lens cap with a certain arc length. When used in surgery, it can reduce the serious complication of vitreous prolapse during surgery.

Description

Technical Field

[0001] This utility model relates to the field of lens dislocation surgery technology, and in particular to an implantable capsular support hook structure. Background Technology

[0002] Lens dislocation is a complex and specialized lens-related disease, usually caused by trauma, congenital factors, or spontaneous factors leading to laxity or rupture of the lens suspensory ligaments. For lens dislocations with a large extent, exceeding one-third to less than one-half of the circumference, surgery is typically performed by an experienced anterior segment surgeon using cataract extraction with tension ring implantation combined with intraocular lens implantation. However, this procedure carries extremely high risks, often resulting in serious intraoperative complications, leading to the intervention of a posterior segment surgeon for phacoemulsification and vitrectomy combined with intraocular lens suspension. For lens dislocations exceeding one-half of the circumference, surgery is usually performed by a posterior segment surgeon using phacoemulsification combined with vitrectomy and intraocular lens suspension. Therefore, for lens dislocations with a large dislocation area, exceeding one-third of the total circumference, surgery is often avoided by anterior segment surgeons due to the potential for serious intraoperative complications such as vitreous prolapse, lens prolapse into the vitreous cavity, and fulminant choroidal hemorrhage. In such cases, patients often need to be referred to a posterior segment surgeon for lens resection combined with vitrectomy. This procedure is highly invasive, expensive, and has unsatisfactory postoperative results, placing a heavy psychological and financial burden on patients.

[0003] Among existing technologies, the implantable capsular retractor, known as the "Golden Hook," developed domestically in recent years, uses 6-0 polypropylene sutures. One end is bent at high temperature to temporarily create a linear retractor, while the other end has a long curved needle. It is used to suture from inside the eye to outside the eye during surgery. The linear retractor is left inside the eye to hook and pull the lens capsule orifice to fix the dislocated lens. It plays a role in preserving the lens capsule structure, maintaining the original anatomical position, and quickly restoring visual function.

[0004] However, the hook structure in the existing technology has certain drawbacks:

[0005] 1. Currently, the self-made gold hook can only support the capsular area at the implantation point and cannot construct a large-scale capsular shape. During the operation, a large number of vitreous prolapses are inevitable, leading to serious complications.

[0006] 2. If the lens dislocation is extensive, multiple implantable capsular retractors need to be inserted, increasing the difficulty and risk of the surgery;

[0007] 3. The procedure is fabricated on-site during the operation, resulting in a longer surgical time;

[0008] 4. Linear hooks also have poor tensile strength and are prone to coming off.

[0009] 5. If the end of the retractor is made too long, it may puncture the lens capsule, making the surgery more difficult.

[0010] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop an implantable pouch support hook structure. Utility Model Content

[0011] The purpose of this invention is to provide an implantable capsular support hook structure. By improving the material, it has strong pulling force and support, and also has a certain degree of elasticity, making it less prone to dislodgement. Utilizing the arc-shaped wings on both sides, it can pull the capsular in the corresponding lens dislocation area to maintain the anatomical position, and can construct a large-area lens cap with a certain arc length, reducing the serious complication of vitreous prolapse during surgery.

[0012] To achieve the above objectives, this utility model provides the following technical solution:

[0013] This invention relates to an implantable capsule support hook structure, which is implanted inside the capsule of the eye and extends to the anterior capsule opening. The support hook structure includes:

[0014] The middle part; and

[0015] Arc-shaped wings formed on both sides of the middle portion;

[0016] The arc-shaped wing extends toward both sides of the middle part, and the arc-shaped wing has an overall arc-shaped structure;

[0017] The connection between the arc-shaped wing and the middle part forms an angle, and the middle part and the arc-shaped wing on the corresponding side are used to clamp the anterior capsule.

[0018] Furthermore, the upper end of the middle portion is formed into a cone-shaped head, and the lower part of the middle portion is an opening facing the anterior sac opening.

[0019] Furthermore, the lower end of the arc-shaped wing is connected to the corresponding side of the opening end of the middle part, and the other end of the arc-shaped wing extends in an arc shape toward the outer side of the middle part.

[0020] The width of the arc-shaped wing is greater than the width of the middle part.

[0021] Furthermore, the support hook structure is made of acrylic ester, and the middle part and the two arc-shaped wings of the support hook structure are formed in one piece.

[0022] Furthermore, the overall width of the support hook structure is 2.9 mm, the length is 5.0 mm, and the thickness is 0.6 mm.

[0023] Furthermore, the width of the middle portion is 1.75 mm. The length of the middle portion (1) is 1.75 mm and the width is 1.2 mm.

[0024] Furthermore, the included angle between the middle part and the arc-shaped wing is 3°.

[0025] Furthermore, the support hook structure can provide support for the lens dislocation area within a 7mm range through the arc-shaped wings on both sides.

[0026] In the above technical solution, the implantable pouch support hook structure provided by this utility model has the following beneficial effects:

[0027] The wing-like structures in the middle and sides of this invention clamp the anterior opening of the lens capsule, making it less likely to dislodge during surgical procedures.

[0028] The support hook structure of this invention provides fan-shaped support to the periphery of the lens capsule, offering greater support over a wider area while increasing the tension of the lens capsule, thus making its shape more stable. This reduces the number of support hooks required, avoids repeated surgical manipulations, prevents or reduces vitreous prolapse during surgery, facilitates intraocular lens implantation, lowers the incidence of surgical complications, and leads to more stable patient outcomes. It also significantly shortens surgical time and reduces surgical risks and difficulty.

[0029] The support hook structure of this utility model has good support and a large range of fixation for dislocation. Utilizing the arc-shaped wings on both sides as implantable capsular support hooks, it can fix the capsular bag in the corresponding lens dislocation area after implantation, which can better restore and maintain the lens capsular bag in the anatomical position, and also significantly reduce the patient's long-term complications, provide the patient with the possibility of implanting refractive intraocular lenses, and alleviate the patient's mental burden to a certain extent. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0031] Figure 1 This is a schematic diagram of the implantable pouch support hook structure disclosed in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram showing the usage state of the implantable pouch support hook structure disclosed in this embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram showing the included angle between the middle part and the arc-shaped wing part of the implantable pouch support hook structure disclosed in this embodiment of the utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Support hook structure;

[0036] 1. Middle section; 2. Curved wing section;

[0037] 11. Bag; 12. Inner bag opening; 13. 9-0 closed-loop polypropylene suture. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0039] See Figures 1 to 3 As shown;

[0040] This embodiment provides an implantable capsule support hook structure 10, which is used to be implanted inside the capsule 11 of the eye and extends to the anterior capsule opening 12. The support hook structure 10 includes:

[0041] Middle part 1; and

[0042] Arc-shaped wings 2 formed on both sides of the middle part 1;

[0043] The arc-shaped wing 2 extends toward both sides of the middle part 1, and the arc-shaped wing 2 has an overall arc-shaped structure;

[0044] The connection between the arc-shaped wing 2 and the middle part 1 forms an angle, and the middle part 1 and the arc-shaped wing 2 on the corresponding side are used to clamp the anterior capsule.

[0045] Specifically, this embodiment discloses a novel implantable capsular support hook structure. Firstly, the support hook structure 10 of this embodiment is made of acrylic resin, and the middle portion 1 and the two arc-shaped wings 2 of the support hook structure 10 are integrally molded. By using a harder acrylic resin material, it has strong tensile strength and support, and also possesses a certain degree of elasticity, making it less prone to dislodgement. The support hook structure 10 of this embodiment includes a middle portion 1 and arc-shaped wings 2. The arc-shaped wing structure can pull the capsular bag 11 in the corresponding lens dislocation area to maintain its anatomical position, enabling the construction of a large-area lens capsular bag with a longer arc length, thus reducing the serious complication of vitreous prolapse during surgery.

[0046] Preferably, in this embodiment, the upper end of the middle part 1 is formed into a cone head, the lower part of the middle part 1 is an opening, and the opening faces the anterior sac opening 12.

[0047] Secondly, in this embodiment, the lower end of the arc-shaped wing 2 is connected to the corresponding side of the opening end of the middle part 1, and the other end of the arc-shaped wing 2 extends arc-shaped towards the outer side of the middle part 1; in addition, the width of the arc-shaped wing 2 in this embodiment is greater than the width of the middle part 1.

[0048] First, this embodiment further defines the structure of the middle part 1 and the arc-shaped wing part 2. The support hook structure 10 of this embodiment is generally similar to the shape of "W". The middle part 1 is in the middle, and the middle part 1 is a structure with a cone head at the upper end and an opening at the lower end, similar to the shape of "Λ". The two sides are arc-shaped wings 2 extending in an arc. The arc-shaped wings 2 and the middle part 1 form an angle to clamp the anterior capsule. Since the support hook structure 10 changes the linear hook to an arc support, there is no sharp part in contact with the capsule 11, so there is no risk of puncturing the capsule 11.

[0049] Preferably, based on the above-described structural limitations of the middle part 1 and the arc-shaped wing part 2, this embodiment further limits the dimensions, specifically: the overall width of the support hook structure 10 is 2.9 mm, the length is 5.0 mm, and the thickness is 0.8 mm.

[0050] In this embodiment, the length of the middle part 1 is 1.75mm and the width is 1.2mm.

[0051] In this embodiment, the included angle between the middle part 1 and the arc-shaped wing part 2 is 3°.

[0052] Based on the structure and dimensions of the support hook structure 10 described above, the support hook structure 10 of this embodiment can provide support for the lens dislocation area within a range of 7mm through the arc-shaped wings 2 on both sides.

[0053] During the procedure, 13 loops of 9-0 closed-loop polypropylene suture were used to encircle the top of the middle part and suture from the inside of the eye to the outside of the eye. The suture was fixed to the scleral lamina to fix the lens dislocation area with an arc length of about 7mm.

[0054] In a preferred embodiment, in order to further prevent the curved wing 2 from puncturing the pouch 11, especially the tip of the curved wing 2, the end of the curved wing 2 in this embodiment needs to be blunted to keep it rounded in order to avoid damage to the pouch 11.

[0055] In the above technical solution, the implantable pouch support hook structure provided by this utility model has the following beneficial effects:

[0056] The wing-like structures in the middle and sides of this invention clamp the anterior opening of the lens capsule, making it less likely to dislodge during surgical procedures.

[0057] The support hook structure 10 of this invention provides fan-shaped support to the periphery of the lens capsule, offering greater support over a wider area while increasing the tension of the lens capsule. This makes the lens capsule 11 more stable, reduces the number of support hooks required, avoids repeated surgical procedures, prevents or reduces vitreous prolapse during surgery, facilitates intraocular lens implantation, lowers the incidence of surgical complications, and leads to more stable patient outcomes. It also significantly shortens surgical time and reduces surgical risks and difficulty.

[0058] The support hook structure 10 of this utility model has good support and a large range of fixation for dislocation. Utilizing the arc-shaped wings 2 on both sides as implantable capsular support hooks, the capsular 11 can be fixed in the corresponding lens dislocation area after implantation, which can better restore and maintain the lens capsular in the anatomical position, and also significantly reduce long-term complications for patients. It provides patients with the possibility of implanting refractive intraocular lenses and reduces the mental burden on patients to a certain extent.

[0059] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An implantable pouch support hook structure, characterized in that, The support hook structure (10) is for implantation inside the eye capsule (11) and extends to the outside of the anterior capsule opening (12), the support hook structure (10) comprising: The middle part (1); and Arc-shaped wings (2) formed on both sides of the middle part (1); The arc-shaped wing (2) extends toward both sides of the middle part (1), and the arc-shaped wing (2) is an arc-shaped structure as a whole; The connection between the arc-shaped wing (2) and the middle part (1) forms an angle, and the middle part (1) and the arc-shaped wing (2) on the corresponding side are used to clamp the anterior capsule.

2. The implantable pouch support hook structure according to claim 1, characterized in that, The upper end of the middle part (1) is formed into a cone head, and the lower part of the middle part (1) is an opening facing the anterior sac opening (12).

3. The implantable pouch support hook structure according to claim 2, characterized in that, The lower end of the arc-shaped wing (2) is connected to the corresponding side of the opening end of the middle part (1), and the other end of the arc-shaped wing (2) extends in an arc shape toward the outer side of the middle part (1). The width of the arc-shaped wing (2) is greater than the width of the middle part (1).

4. The implantable pouch support hook structure according to any one of claims 1 to 3, characterized in that, The material of the support hook structure (10) is acrylic ester, and the middle part (1) and the two arc-shaped wings (2) of the support hook structure (10) adopt a one-time molding structure.

5. The implantable pouch support hook structure according to any one of claims 1 to 3, characterized in that, The support hook structure (10) has an overall width of 2.9 mm, a length of 5.0 mm, and a thickness of 0.6 mm.

6. The implantable pouch support hook structure according to claim 5, characterized in that, The length of the middle part (1) is 1.75 mm and the width is 1.2 mm.

7. The implantable pouch support hook structure according to claim 5, characterized in that, The included angle between the middle part (1) and the arc-shaped wing part (2) is 3°.

8. The implantable pouch support hook structure according to claim 7, characterized in that, The support hook structure (10) can provide support for the lens dislocation area within a range of 7 mm through the arc-shaped wings (2) on both sides.

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