Capsularhexis assist device for cataract surgery

Abstract

The utility model discloses a kind of cataract surgery tear capsule auxiliary devices, including vertically arranged U-shaped seat, U-shaped seat is connected in one side of two movable seats by drive assembly, movable seat is fixedly connected in one end of long rod, the other end of long rod is screw-connected with the first screw rod perpendicular to long rod, the one end of first screw rod is equipped with first knob, the other end of first screw rod is equipped with annular groove, the both sides of U-shaped seat are equipped with corresponding connecting block, connecting block is fixed to patient face by corresponding bandage, this kind of cataract surgery tear capsule auxiliary device uses, first, by bandage, the whole is fixed to patient face, then by drive assembly, two movable seats drive corresponding first screw rod in opposite or opposite direction synchronous movement, to tear open by two first screw rods respectively to upper eyelid and lower eyelid, annular groove is equipped on first screw rod, support eyelid by annular groove, it is convenient to tear capsule to eyeball.

Description

Technical Field

[0001] This utility model relates to the field of surgical capsulorhexis assistance technology, specifically a cataract surgery capsulorhexis assist device. Background Technology

[0002] Aging, genetics, local nutritional deficiencies, immune and metabolic abnormalities, trauma, poisoning, and radiation can all cause metabolic disorders in the lens, leading to protein denaturation and clouding, i.e., cataracts. When lens clouding reaches a certain degree, surgical treatment is necessary. During the procedure, the clouded lens nucleus and lens cortex are removed, preserving the posterior capsule on the outer surface of the lens and the anterior capsule (capsular bag) after capsulorhexis. A posterior chamber artificial lens, replacing the clouded lens, is then implanted into this capsular bag.

[0003] Small incision cataract surgery is currently the mainstream cataract surgery. One of the important techniques in this surgery is capsulorhexis, the main purpose of which is to provide a continuous, smooth anterior capsular opening to facilitate the removal of the cloudy lens nucleus and cortex. However, due to factors such as the direction of the capsulorhexis force, the position of the capsulorhexis forceps, the switching point, and the surgeon's feel and skill level, capsular tearing, displacement, and improper size are still unavoidable. These issues can affect the removal of the lens nucleus and cortex, the implantation of the posterior chamber intraocular lens, and even lead to surgical failure.

[0004] Cataract capsulotomy requires the assistance of an assistive device. However, existing assistive devices have a simple structure and cannot open and fix the eyelids. Utility Model Content

[0005] The purpose of this invention is to provide a cataract surgery capsulorhexis aid to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cataract surgery capsulorhexis assist device, comprising a vertically arranged U-shaped seat, wherein the U-shaped seat is connected to one side of two movable seats via a drive assembly, the side of the movable seat away from the drive assembly is fixedly connected to one end of a long rod, the other end of the long rod is threadedly connected to a first screw perpendicular to the long rod, one end of the first screw is provided with a first knob, the other end of the first screw is provided with an annular groove, and both sides of the U-shaped seat are provided with corresponding connecting blocks, the connecting blocks being fixed to the patient's face by corresponding straps.

[0007] Preferably, the drive assembly includes a second screw, a third screw, and a straight rod. The threads on the second screw and the third screw are arranged in opposite directions. One end of the second screw is fixedly connected to one end of the third screw. The other end of the third screw is rotatably connected to the inner wall of one side of the U-shaped seat through a bearing. The other end of the second screw extends out of the inner wall of the other side of the U-shaped seat and is fixedly connected to the second knob. The two ends of the straight rod are respectively fixedly connected between the two side walls of the U-shaped seat. Both movable seats are slidably connected to the straight rod.

[0008] Preferably, the strap includes a first strap and a second strap, one end of the first strap and one end of the second strap are respectively fixed to the two sides of the connecting block, and the other end of the first strap and the other end of the second strap are bonded to the patient's face.

[0009] Preferably, the other end of the first strap has a soft hook and loop side, and the other end of the second strap has a rough hook and loop side. The other ends of the first strap and the other ends of the second strap are bonded together by the soft hook and loop side and the rough hook and loop side.

[0010] Preferably, both the first and second straps are elastic bands.

[0011] Preferably, the first screw has a threaded portion and a smooth portion, and the annular groove is located in the smooth portion.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] When using this cataract surgery capsulorhexis aid, the entire device is first fixed to the patient's face with a strap. Then, the drive assembly drives two movable seats to move the corresponding first screws synchronously in opposite or opposite directions. The two first screws open the upper and lower eyelids respectively. The first screws are provided with annular grooves, which support the eyelids. After the eyelids are opened, it is convenient to perform capsulorhexis on the eyeball. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the drive component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of structure A of this utility model.

[0017] In the attached figures, the following are the reference numerals: 1. U-shaped seat; 2. Drive assembly; 3. Movable seat; 4. Long rod; 5. First screw; 6. First knob; 7. Annular groove; 8. Connecting block; 9. Strap; 10. Second screw; 11. Third screw; 12. Straight rod; 13. Bearing; 14. Second knob. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0019] Example: Please refer to Figures 1-3 This utility model provides a technical solution: a cataract surgery capsulorhexis assist device, including a vertically arranged U-shaped base 1. The U-shaped base 1 is connected to one side of two movable bases 3 through a drive component 2. The side of the movable base 3 away from the drive component 2 is fixedly connected to one end of a long rod 4. The other end of the long rod 4 is threadedly connected to a first screw 5 perpendicular to the long rod 4. One end of the first screw 5 is provided with a first knob 6. The drive component 2 drives the two movable bases 3 to move the corresponding first screw 5 synchronously in opposite or opposite directions. The other end of the first screw 5 is provided with an annular groove 7, which supports the eyelids and facilitates capsulorhexis of the eyeball. Both sides of the U-shaped base 1 are provided with corresponding connecting blocks 8, which are fixed to the patient's face by corresponding straps 9.

[0020] In this embodiment, the drive assembly 2 includes a second screw 10, a third screw 11, and a straight rod 12. The threads on the second screw 10 and the third screw 11 are arranged in opposite directions. One end of the second screw 10 is fixedly connected to one end of the third screw 11. The other end of the third screw 11 is rotatably connected to the inner wall of one side of the U-shaped seat 1 through a bearing 13. The other end of the second screw 10 extends out of the inner wall of the other side of the U-shaped seat 1 and is fixedly connected to the second knob 14. The two ends of the straight rod 12 are respectively fixedly connected between the two side walls of the U-shaped seat 1. The two movable seats 3 are slidably connected to the straight rod 12. The second screw 10 and the third screw 11 are driven to rotate synchronously through the second knob 14. Under the action of connecting with the corresponding screw and sliding with the straight rod 12, the two movable seats 3 drive the corresponding first screw 5 to move synchronously in the opposite or opposite directions. The two first screws 5 are used to open the upper eyelid and the lower eyelid respectively. After the eyelids are opened, it is convenient to tear the eyeball capsule.

[0021] In this embodiment, the strap 9 includes a first strap and a second strap. One end of the first strap and one end of the second strap are respectively fixed to the two sides of the connecting block 8, and the other end of the first strap and the other end of the second strap are bonded to the patient's face.

[0022] In this embodiment, the other end of the first strap is provided with a soft hook and loop side, and the other end of the second strap is provided with a burred hook and loop side. The other ends of the first strap and the other ends of the second strap are bonded together by the soft hook and loop side and the burred hook and loop side.

[0023] In this embodiment, both the first and second straps are elastic bands, which facilitates fixing the assistive device in a suitable position on the patient's face.

[0024] In this embodiment, the first screw 5 is provided with a threaded part and a smooth part, and the annular groove 7 is located on the smooth part to prevent the threaded part of the first screw 5 from being used in conjunction with the eyelid.

[0025] When using this cataract surgery capsulorhexis aid, the entire device is first fixed to the patient's face by the strap 9. Then, the second screw 10 and the third screw 11 are driven to rotate synchronously by the second knob 14. This causes the two movable seats 3 to move synchronously in opposite directions by connecting with the corresponding screws and sliding with the straight rod 12. The two first screws 5 open the upper and lower eyelids respectively. The first screw 5 is provided with an annular groove 7, which supports the eyelids. After the eyelids are opened, it is convenient to perform capsulorhexis on the eyeball.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cataract surgery capsulorhexis aid, characterized in that: The device includes a vertically arranged U-shaped seat (1), which is connected to one side of two movable seats (3) via a drive assembly (2). The movable seats (3) are fixedly connected to one end of a long rod (4) on the side away from the drive assembly (2). The other end of the long rod (4) is threadedly connected to a first screw (5) perpendicular to the long rod (4). One end of the first screw (5) is provided with a first knob (6), and the other end of the first screw (5) is provided with an annular groove (7). Both sides of the U-shaped seat (1) are provided with corresponding connecting blocks (8), and the connecting blocks (8) are fixed to the patient's face by corresponding straps (9).

2. A capsulorhexis assist device for cataract surgery according to claim 1, wherein: The drive assembly (2) includes a second screw (10), a third screw (11), and a straight rod (12). The threads on the second screw (10) and the third screw (11) are arranged in opposite directions. One end of the second screw (10) is fixedly connected to one end of the third screw (11). The other end of the third screw (11) is rotatably connected to the inner wall of one side of the U-shaped seat (1) through a bearing (13). The other end of the second screw (10) extends out of the inner wall of the other side of the U-shaped seat (1) and is fixedly connected to the second knob (14). The two ends of the straight rod (12) are respectively fixedly connected between the two side walls of the U-shaped seat (1). The two movable seats (3) are slidably connected to the straight rod (12).

3. A capsulorhexis assist device for cataract surgery according to claim 2, wherein: The strap (9) includes a first strap and a second strap. One end of the first strap and one end of the second strap are respectively fixed to the two sides of the connecting block (8), and the other end of the first strap and the other end of the second strap are bonded to the patient's face.

4. The capsulorhexis assist device of claim 3, wherein: The other end of the first strap has a soft hook and loop side, and the other end of the second strap has a burred hook and loop side. The other ends of the first strap and the other ends of the second strap are bonded together by the soft hook and loop side and the burred hook and loop side.

5. A capsulorhexis assist device for cataract surgery according to claim 4, wherein: Both the first and second straps are elastic bands.

6. A phacoemulsification tear capsule assist device according to claim 5, wherein: The first screw (5) is provided with a threaded part and a smooth part, and the annular groove (7) is located in the smooth part.

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