Suturable permanent lens capsular bag retractor

Abstract

The utility model discloses a suture permanent lens capsular bag drag hook. The drag hook comprises a traction element, wherein the traction element is composed of a pull plate and a hanging plate formed by returning and bending one end of the pull plate; a notch is formed in the position, corresponding to the hanging plate, of the pulling plate, and the hanging plate gradually gets close to the hanging plate from the connecting position of the hanging plate and the pulling plate, enters the notch formed by the hanging plate and then is bent reversely to be gradually away from the pulling plate upwards from the notch. The suture is arranged at the other end of the pulling plate; and the puncture needle is connected to the tail end of the suture. During an operation, a needle head penetrates through a main incision, the needle head is led out from a dislocation position of a suspended ligament of a crystalline lens and a flat part of a ciliary body, a traction element is fixed on the suspended ligament at the dislocation position, the effect of outwards lifting and stabilizing a capsular bag is achieved, stretching force is adjusted through a suture, and finally the suture is knotted and fixed on a sclera surface.

Description

Technical Field

[0001] The utility model relates to the field of ophthalmic surgery auxiliary equipment, in particular to a permanent lens capsule retractor capable of being sutured. Background Art

[0002] For patients with lens subluxation or intraocular lens complex subluxation, capsular bag tension rings or capsular bag retractors are currently commonly used to complete the surgery. However, when the lens dislocation exceeds a certain range, the use of capsular bag tension rings cannot stably implant the intraocular lens into the capsular bag, and the existing capsular bag retractors cannot be permanently placed in the eye. After the cataract phacoemulsification surgery is completed, the capsular bag retractors need to be removed, so these patients often need to use methods such as intraocular lens suspension and suture fixation to solve the problem of intraocular lens implantation, which increases surgical trauma and complications such as postoperative refractive errors. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the purpose of the present invention is to provide a lens capsular bag retractor that can be permanently placed in the eye.

[0004] To achieve the above-mentioned purpose, the embodiment of the present invention provides a suture-able permanent lens capsular bag retractor, comprising:

[0005] Pulling element: It consists of a pull plate and a hanging plate formed by bending back at one end of the pull plate; a notch is formed at the pull plate corresponding to the hanging plate. The hanging plate gradually approaches the hanging plate from the connection point with the pull plate and enters the notch formed by the hanging plate, then bends in the opposite direction and gradually moves upward from the notch away from the pull plate;

[0006] Suture: located at the other end of the pull plate;

[0007] Needle: Attached to the end of the suture.

[0008] According to the sutureable permanent lens capsular bag retractor of the embodiment of the present invention, during surgery, a needle is inserted from the main incision, and the needle is led outward from the dislocated suspensory ligament of the lens through the flat part of the ciliary body. The pulling element is fixed to the suspensory ligament at the dislocated position to pull the capsular bag outward and stabilize it. The stretching force is adjusted by the suture, and finally the suture is knotted and fixed to the scleral surface.

[0009] In addition, the suture-capsular lens retractor according to the above embodiment of the present invention may also have the following additional technical features:

[0010] Optionally, the pulling element is made of PMMA material.

[0011] Optionally, the pulling element has a diamond shape in its developed plane.

[0012] Optionally, the suture is an 8-0 non-absorbable suture.

[0013] Optionally, the puncture needle is a long straight needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a perspective schematic diagram according to an embodiment of the present utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram from another angle according to an embodiment of the utility model;

[0016] Figure 3 Schematic diagram of application status according to an embodiment of the present utility model.

[0017] Description of labels:

[0018] Pulling element 1 pulling plate 11 notch 111 hanging plate 12

[0019] Stitch 2

[0020] Puncture needle 3. DETAILED DESCRIPTION

[0021] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] During the operation of the utility model, the needle is inserted from the main incision, and the needle is led outward from the dislocated suspensory ligament of the lens through the flat part of the ciliary body. The pulling element is fixed to the suspensory ligament at the dislocated position to pull the capsule outward and stabilize it. The stretching force is adjusted by the suture, and finally the suture is knotted and fixed to the scleral surface.

[0023] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Figures 1 to 2 A permanent lens capsular bag retractor with suture 2 according to an embodiment of the present invention comprises:

[0026] Pulling element 1: It consists of a pull plate 11 and a hanging plate 12 formed by bending back at one end of the pull plate 11. A notch 111 is formed at the pull plate 11 corresponding to the hanging plate 12. The hanging plate 12 gradually approaches the hanging plate 12 from the connection point with the pull plate 11 and enters the notch 111 formed by the hanging plate 12. It then bends in the opposite direction and gradually moves upward from the notch 111 away from the pull plate 11.

[0027] Specifically, the pulling element 1 can be a diamond-shaped unfolded surface, with one acute angle of the diamond folded in the same direction as the other acute angle, one of the acute angles being the pulling plate 11 connected to the suture 2, and the other angle being the hanging plate 12;

[0028] All positions of the entire pulling element 1 are rounded and blunted, and the surface is frosted to a certain extent, which can not only avoid adhesion with the surrounding muscle groups, but also facilitate the sliding of the capsule bag during surgery;

[0029] The connection between the pull plate 11 and the hanging plate 12 adopts an arc bending transition, both externally and internally, to reduce friction on the surrounding soft tissues;

[0030] In some embodiments, the bending line between the hanging plate 12 and the pulling plate 11 is not a straight line, but an arc with a certain inner curvature, and the arc opens toward the lens, so that it can better fit the physiological structure curve of the capsular bag during use;

[0031] The hanging plate 12 can be a whole plate, or a groove continuous with the notch 111 of the hanging plate 12 can be formed inside. Through this structure, the entire pulling element 1 can have a certain structural elasticity in both the in-plane and out-of-plane directions after being placed in place, which can better simulate the function of the suspensory ligament.

[0032] In the above scheme, the side profile of the hanging plate 12 is a V-shape, and the two ends of the V-shape are different in height. The end connected to the pull plate 11 is high, and the bottom end of the V-shape is in the notch 111 of the pull plate 11, while the other end is lower. This structure, combined with the notch 111 of the pull plate 11, makes it difficult for the bag to fall out after sliding in. This setting can facilitate one-time operation in place without slipping out during surgery.

[0033] The above embodiment can adopt the following dimensions: the widest part of the pulling element 1 is between 1.8 and 2.2 mm, preferably 2 mm, the longest dimension of the pulling plate 11 is between 3.8 and 4.2 mm, preferably 4 mm, and the longest dimension of the hanging plate 12 is between 2.8 and 3.2 mm, preferably 3 mm.

[0034] The entire pulling element 1 can be made of PMMA material.

[0035] Suture 2: Its function is to tighten the pulling element 1 and fix it on the scleral surface. It is located at the other end of the pulling plate 11 and can use 8-0 non-absorbable suture 2;

[0036] Puncture needle 3: connected to the end of the suture 2, a long straight needle can be used. The purpose of setting it up is that when the pulling element 1 is placed in place, the puncture needle 3 is used directly to start pulling the suture 2 through the sclera surface. This pulling element 1-suture 2-puncture needle 3 integrated solution can be used directly without temporary assembly and threading before surgery, and can be used conveniently and quickly.

[0037] Figure 3 This is a demonstration of the method of use of an embodiment of the utility model.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. Sutureable permanent lens capsular bag retractor, characterized by: include Pulling element: It consists of a pull plate and a hanging plate formed by bending back at one end of the pull plate; a notch is formed at the pull plate corresponding to the hanging plate. The hanging plate gradually approaches the hanging plate from the connection point with the pull plate and enters the notch formed by the hanging plate, then bends in the opposite direction and gradually moves upward from the notch away from the pull plate; Suture: located at the other end of the pull plate; Needle: Attached to the end of the suture.

2. The sutureable permanent lens capsular bag retractor according to claim 1, characterized in that: The pull element is made of PMMA.

3. The sutureable permanent lens capsular bag retractor according to claim 1, characterized in that: The pulling element has a rhombus shape when viewed from a flat surface.

4. The sutureable permanent lens capsular bag retractor according to claim 1, characterized in that: The sutures are 8-0 non-absorbable sutures.

5. The sutureable permanent lens capsular bag retractor according to claim 1, characterized in that: The puncture needle is a long straight needle.

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