Posterior lens capsule protector for ophthalmologic operation

Abstract

The utility model relates to a crystalline lens posterior capsule protector for an ophthalmologic operation. The crystalline lens posterior capsule protector comprises a posterior capsule protective film and an injection device, the posterior capsule protective film is used for being placed in a capsular bag of a middle crystalline lens and protecting the posterior capsule; the injection device is used for pushing the posterior capsule protective film into a capsular bag of a crystalline lens; wherein the injection device is a rotary propelling device; comprising a tip, an injector body part (5) and a spiral injection rod, wherein the posterior capsule protective film is of a circular structure; and the front section of the injector body part is placed and pushed out through the tip end. According to the utility model, a double-structure design is adopted; by means of the design, the protective film can be simply and accurately placed in the crystal capsule belt, the design of the circular structure is safer, the rear capsule film is not prone to being damaged, and therefore the safety of an operation is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically relating to a posterior capsule protector for ophthalmic surgery. Background Technology

[0002] In ophthalmic cataract surgery, when using phacoemulsification to remove the cloudy lens, the cloudy lens fragments or phacoemulsification tip can easily damage the posterior capsule, especially when the lens is significantly cloudy and dense, greatly increasing the risk of posterior capsule rupture. This can place considerable psychological pressure on the surgeon. Therefore, there is a need for a simple and easy-to-use posterior capsule protection tool to help reduce the chance of posterior capsule rupture during surgery and alleviate the burden on the surgeon. Utility Model Content

[0003] The purpose of this invention is to provide a posterior capsule protector for ophthalmic surgery. It is a simple and easy-to-operate posterior capsule protection tool; in ophthalmic cataract surgery, the posterior capsule protector is implanted into the lens capsule, and removed after the cloudy lens has been completely removed by phacoemulsification, thus solving the aforementioned problems.

[0004] The aforementioned posterior capsule protector for ophthalmic surgery includes a posterior capsule protector and an injection device.

[0005] The posterior capsule protector is used to place the capsule bag of the mesoderm and protect the posterior capsule membrane;

[0006] The injection device is used to propel the posterior capsule protector into the capsular bag of the lens.

[0007] The posterior capsule protective membrane has a circular structure; the front section of the injector body is placed and pushed out through the tip.

[0008] This invention adopts a dual-structure design, consisting of a circular posterior capsule protective membrane and an injection device for injecting the posterior capsule protective membrane.

[0009] The injection device is preferably a rotary propulsion device, comprising a tip, a syringe body, and a spiral injection rod. Specifically, by rotating the injection device, the posterior capsule protective membrane is injected into the lens capsular bag, facilitating the surgeon's protection of the posterior capsule during surgery.

[0010] The posterior capsule protector is circular, minimizing the possibility of damage to the posterior capsule of the lens; the injector is a rotating propulsion device that slowly rotates to inject the posterior capsule protector into the lens, avoiding excessive force that could cause artificial damage. It is simple and safe to operate.

[0011] Preferably, the posterior capsule protective membrane and the injector used in this invention are disposable instruments, which can effectively reduce the risk of cross-infection.

[0012] The posterior capsule protective membrane is thicker in the middle and thinner at the edges. Preferably, the posterior capsule protective membrane is slightly thicker in the middle and slightly thinner at the edges; it can be folded and placed into a roughly circular container at the front of the injector.

[0013] The posterior capsule protective film is an acrylic acid-methacrylic acid copolymer film.

[0014] Specifically, the posterior capsule protector can be made of acrylic acid and methacrylic acid copolymer, which is one of the most commonly used materials for intraocular lenses (IOLs) and is used to manufacture foldable IOLs. It has good biocompatibility and durability. During the manufacturing process, a color modifier is added to the posterior capsule protector, for example, to make it yellow, making it easier to distinguish and remove.

[0015] The injector body has concave structures on both sides of the middle section for gripping with fingers.

[0016] Specifically, the injector body consists of a tip, a main body, and a spiral injector rod. The circular space at the front houses the lens protector, and the small hole in the circular space is for injecting viscoelastic agent for lubrication. The concave sections in the middle of the main body are for the thumb and forefinger to grip, preventing slippage. The spiral rod at the rear, propelled by two small protrusions inside the tail, rotates the injector core forward. A thin strip at the very end provides a non-slip design, ensuring more stable, uniform, and safer rotation. After the lens has been ultrasonically emulsified and aspirated, viscoelastic agent is injected into the capsule, and the lens protector can then be removed with tweezers. The injector design is simpler, safer, and more stable.

[0017] The entire syringe is made of medical-grade plastics, such as polycarbonate or polymers. These materials offer advantages including lightweight design, low cost, and the ability to be designed for single use, thus reducing the risk of cross-infection.

[0018] The posterior capsule protector also includes a protective sleeve; the protective sleeve is a cap-shaped structure used to protect and fix the tip.

[0019] The front part of the inside of the cap-shaped structure is provided with a locking point for the tip to be fastened.

[0020] The number of checkpoints is no less than two. This improves the overall stability and operability of the structure.

[0021] This invention employs a dual-structure design, comprising a circular posterior capsule protective membrane and a dedicated injection device. This design simplifies and precisely places the protective membrane within the lens capsule, while the circular structure enhances safety by minimizing damage to the posterior capsule, thereby improving surgical safety. Attached Figure Description

[0022] Figure 1 A schematic diagram of the posterior capsule protector of the lens provided by this utility model;

[0023] Figure 2 The diagram shows the structure of the provided posterior capsule protective membrane, where a is a frontal view and b is a side view.

[0024] In the diagram: 1. Posterior capsule protective membrane; 2. Injection device; 3. Locking point; 4. Tip; 5. Injector body; 6. Spiral injector rod; 7. Holding structure; 8. Protective sleeve. Detailed Implementation

[0025] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] Example

[0027] This embodiment provides a posterior capsule protector for ophthalmic surgery, such as... Figure 1 As shown;

[0028] It includes a posterior capsule protective membrane 1, an injection device 2, and a protective sleeve 8; the posterior capsule protective membrane 1 is used to be placed into the capsular bag of the lens to protect the posterior capsule membrane; the injection device 2 is used to push the posterior capsule protective membrane 1 into the capsular bag of the lens;

[0029] The injection device 2 is a rotary propulsion device, including a tip 4, a pusher body 5, and a spiral pusher rod 6; the tip 4 can be engaged with the locking point 3.

[0030] The posterior capsule protective membrane 1 has a circular structure; the front section of the injector body 5 is placed and pushed out through the tip 4.

[0031] The protective sleeve 8 is a cap-shaped structure used to protect and secure the tip 4. The front interior of the cap-shaped structure has two locking points 3 for securing the tip 4.

[0032] The posterior capsule protective membrane is pre-placed inside the injector. Preferably, it is placed in the front section of the injector body 5; the injector uses a spiral push rod, and during use, the posterior capsule protective membrane is pushed in through the push rod and then pushed into the capsule of the lens through the tip 4.

[0033] The posterior capsule protective membrane 1 is slightly thicker in the middle and slightly thinner at the edges (e.g., Figure 2 As shown (a is a front view, b is a side view), it can be folded and placed into the near-circular container at the front of the injector. The posterior capsule protective film can be made of acrylic acid and methacrylic acid copolymer, with a color modifier (such as yellow) added during manufacturing.

[0034] The injector body 5 has concave structures on both sides of the middle part, which are gripping structures 7 for finger gripping.

[0035] The injector body consists of a tip, a body, and a spiral injector rod. The circular space at the front houses the lens protector, and the small hole in the circular space is for injecting viscoelastic agent for lubrication. The concave sections in the middle of the body are for the thumb and forefinger to grip, preventing slippage. The spiral rod at the rear, propelled by two small protrusions inside the tail, rotates the injector core forward. A thin strip at the very end provides a non-slip design, ensuring more stable, uniform, and safer rotation.

[0036] After the lens has been removed by ultrasonic emulsification, a viscoelastic agent is injected into the capsule, and the lens protector can be removed with tweezers.

[0037] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A posterior capsule protector for ophthalmic surgery, characterized in that, It includes a posterior capsule protector (1) and an injection device (2); the posterior capsule protector (1) is used to be placed into the capsular bag of the lens to protect the posterior capsule; the injection device (2) is used to push the posterior capsule protector (1) into the capsular bag of the lens; The injection device (2) is a rotary propulsion device, including a tip (4), a pusher body (5), and a spiral pusher rod (6). The posterior capsule protective membrane (1) has a circular structure; the front section of the injector body (5) is inserted through the tip (4).

2. The posterior capsule protector according to claim 1, characterized in that, The posterior capsule protective membrane (1) is thick in the middle and thin at the edges.

3. The posterior capsule protector according to claim 1 or 2, characterized in that, The posterior capsule protective film (1) is an acrylic acid-methacrylic acid copolymer film.

4. The posterior capsule protector according to claim 1, characterized in that, The middle part of the injector body (5) is provided with concave structures on both sides for finger gripping.

5. The posterior capsule protector according to any one of claims 1, 2, and 4, characterized in that, It also includes a protective sleeve (8); the protective sleeve (8) is a cap-shaped structure used to protect and fix the tip (4).

6. The posterior capsule protector according to claim 3, characterized in that, It also includes a protective sleeve (8); the protective sleeve (8) is a cap-shaped structure used to protect and fix the tip (4).

7. The posterior capsule protector according to claim 5, characterized in that, The front part of the inner part of the cap-shaped structure is provided with a locking point (3) for the locking of the tip (4).

8. The posterior capsule protector according to claim 6, characterized in that, The front part of the inner part of the cap-shaped structure is provided with a locking point (3) for the locking of the tip (4).

9. The posterior capsule protector according to claim 7 or 8, characterized in that, The number of checkpoints (3) shall not be less than two.

Images