Intraocular lens taking-out device

Abstract

The utility model discloses an intraocular lens taking-out device, relates to the technical field of medical auxiliary tools, and aims to solve the problem that in an ophthalmologic operation, an intraocular lens implanting operation or an intraocular lens operation, a patient is easy to be abnormal or improper, and the intraocular lens needs to be taken out or replaced. In a general operation, a surgeon often cuts off the intraocular lens and takes out the intraocular lens by using tweezers under the condition that a conventional transparent cornea incision is expanded, in order to not increase damage to eyes of a patient, the surgeon is required to accurately and quickly take out the intraocular lens, however, the tweezers in the prior art have high requirements on operation techniques, and the operation difficulty is high. The use is inconvenient. According to the intraocular lens taking-out device provided by the utility model, the clamping end for clamping the intraocular lens and the operation end for operation are designed, so that the clamping of the intraocular lens is realized; a connecting rod structure is designed at the operation end, and the clamping end is opened outwards through cooperation of the key and the sliding block.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary appliances, in particular to an artificial lens taking-out device. Background Art

[0002] Artificial lens implantation is one of the most commonly used surgical procedures in ophthalmology today, and is often used to improve the poor vision of patients with cataracts or myopia. However, sometimes the implanted lens needs to be removed due to unsuccessful surgery or changes in the condition. The conventional methods used in prior art for taking artificial lenses during ophthalmic surgery are: 1) using microscopic forceps to fold the artificial lens in half and then clamp it, 2) using microscopic scissors to cut off the optical zone of the artificial lens and remove it; the clinical dilemmas caused are: 1) the operation of clamping with tweezers is very inconvenient, and it is also very easy to cause damage to the patient's eyes (loss of corneal endothelium, iris damage and anterior chamber hemorrhage, etc.), which is not conducive to the use of artificial lens implantation; 2) the artificial lens to be removed will be damaged, resulting in a waste of artificial lens resources, which is another shortcoming of the prior art. Based on the above reasons, the utility model proposes an artificial lens removal device to solve these shortcomings.

[0003] As people age, the number of people suffering from cataracts increases year by year. The main pathological changes of cataracts are hardening and opacification of the lens, which needs to be replaced with an artificial lens. Currently, the most widely used is the foldable artificial lens, which can be inserted through a smaller incision and then unfolded. In clinical practice, if the artificial lens loop is broken, the optical zone is damaged, or if the implanted artificial lens is found to have an error in power after surgery, the artificial lens needs to be removed or replaced. Currently, the main ways to remove artificial lenses are to remove them through a large incision or to cut the artificial lens open in the eye. Both methods increase the patient's chance of eye damage. Utility Model Content

[0004] In view of the above-mentioned problems, the utility model aims to provide an artificial lens removal device, which can clamp the artificial lens in the eyeball and remove it, and at the same time can complete the folding action in the eye.

[0005] The main idea of ​​the technical solution adopted by the utility model is: by designing a clamping end for clamping the artificial lens and an operating end for operation, the artificial lens can be clamped; a connecting rod structure is designed at the operating end, and the clamping end is opened outward through the cooperation of a button and a sliding block.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An intraocular lens removal device comprises a housing, and is characterized in that it also comprises:

[0008] Clamping plates are symmetrically arranged on the side walls of the housing on both sides and are rotatably connected to the side walls;

[0009] A push plate is arranged between the two clamping plates and slides inside the clamping plates;

[0010] The sliding block 2 is slidably connected to the bottom surface of the accommodating shell, one side of which is fixedly connected to a push plate, and the other side of which is connected to an intermittent pusher, and the intermittent pusher can drive the splint to intermittently open and reset to both sides.

[0011] Through the above technical solution, further: the intermittent pusher includes a connecting rod 1 and a connecting rod 2, the connecting rod 1 is rotatably connected to the connecting rod 2, and the connecting rod 2 is rotatably connected to the sliding block 2.

[0012] Through the above technical solution, further: the second sliding block is slidably connected in the second sliding groove, a second spring is fixedly connected between the second sliding groove and the second sliding block, and the second spring is arranged on the side away from the clamping plate.

[0013] Through the above technical solution, further: a sliding groove 1 is opened on the side wall of the accommodating shell, a sliding block 1 is slidably connected in the sliding groove 1, and a spring 1 is fixedly connected between the sliding block 1 and the top of the sliding groove 1.

[0014] Through the above technical solution, further: the connecting rod 1 is rotatably connected to the sliding block 1.

[0015] Through the above technical solution, further: the clamping plate is an "L"-shaped structure, and there is an obtuse angle between the two sections of the structure, including a clamping end and an adjusting end that are integrally connected, the adjusting end is rotatably connected to the side walls on both sides of the accommodating shell, the angle between the clamping end and the adjusting end is an obtuse angle, and in the initial state, the two clamping ends are parallel and close to each other.

[0016] The beneficial effects of the utility model are:

[0017] The intraocular lens is clamped by designing a clamping end for clamping the intraocular lens and an operating end for operation.

[0018] An automatically reset connecting rod structure is designed at the operating end, connecting rod one is rotatably connected to connecting rod two, the other end of connecting rod one is slidably connected to the inner wall of the rear end of the containing shell, and the other end of connecting rod two is slidably connected to the bottom surface of the containing shell.

[0019] The clamping end is expanded outward by the cooperation of the button and the sliding block. When the button is pressed, the connecting rod 1 moves downward as a whole, and the end of the connecting rod 1 connected to the sliding block 1 overcomes the tension of the spring 1 and moves downward to the bottom of the sliding groove 1. The section of the connecting rod 1 connected to the connecting rod 2 moves downward until the connecting rod 1 as a whole is parallel to the bottom surface of the housing; in this process, the end of the connecting rod 1 connected to the connecting rod 2 moves toward the front end of the housing, thereby driving the connecting rod 2 to move toward the front end of the housing, and the height of the end of the connecting rod 2 connected to the connecting rod 1 also decreases, thereby pushing the sliding block 2 to overcome the tension of the spring 2 and move toward the front end of the housing. When the sliding block 2 slides, it drives the splint to move to both sides, and the two splints naturally open to both sides.

[0020] After the clamping position is determined, release the button to cancel the external force, and the elastic force of spring 1 and spring 2 causes sliding block 1 and sliding block 2 to return to the initial state, driving connecting rod 1 and connecting rod 2 back to their original positions, and sliding block 2 drives the clamping plate to move in the opposite direction, and the two clamping plates return to the initial state, completing the clamping action. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without the upper cover;

[0023] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0024] Figure 4 for Figure 2 Part B is an enlarged schematic diagram;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model from another angle with the upper cover removed;

[0026] Figure 6 for Figure 5 A partially enlarged schematic diagram of the three-dimensional structure;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the connecting hook of the utility model;

[0028] Among them: 1. accommodating shell; 2. splint; 3. connecting rod 1; 4. connecting rod 2; 5. sliding block 1; 6. spring 1; 7. sliding block 2; 8. spring 2; 9. button; 10. operating slot; 11. pushing plate; 12. sliding block 3; 13. connecting hook. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] The inventors have found that in ophthalmic surgery, during or after the implantation of an artificial lens, patients are prone to abnormalities or inappropriateness, and it is common for the artificial lens to be removed or replaced. In general, during surgery, surgeons often use tweezers to remove the artificial lens. In order not to increase the chance of other eye injuries, surgeons are required to remove the artificial lens accurately and quickly. However, the tweezers in the prior art have high requirements for operating techniques and are not easy to use. Therefore, how to provide a surgical instrument to facilitate surgeons to remove the artificial lens accurately and quickly has become an important technical problem to be solved by those skilled in the art.

[0031] Based on the above findings, the present application proposes an intraocular lens removal device, which realizes the clamping of the intraocular lens by designing a clamping end for clamping the intraocular lens and an operating end for operation; a connecting rod structure is designed at the operating end, and the clamping end is opened outward through the cooperation of a button and a sliding block. Example 1

[0032] See also Figure 1-Figure 6 The present application discloses an intraocular lens removal device, comprising a housing 1, which is a hollow structure, and an opening is provided at the front end of the housing 1 to facilitate the extension of a splint 2. The upper cover of the housing 1 is a detachable structure, and the upper cover and the housing 1 can be designed as a buckle structure, the two are mutually engaged, and can be separated after use to facilitate cleaning and disinfection of the internal parts.

[0033] The rear end of the housing 1 is provided with a connecting rod structure, including a connecting rod 1 3 and a connecting rod 2 4. The connecting rod 1 3 and the connecting rod 2 4 are rotatably connected, and a connecting shaft and a connecting plate are provided at the connection. The other end of the connecting rod 1 3 is slidably connected to the inner wall of the rear end of the housing 1. A longitudinal sliding groove 1 is provided on the inner wall of the rear end of the housing 1. A sliding block 5 is slidably connected in the sliding groove 1. A spring 1 6 is fixedly connected between the upper part of the sliding block 5 and the sliding groove 1. The other end of the spring 1 6 is fixedly connected to the upper inner wall of the sliding groove 1. In the natural state, the sliding block 5 receives the pulling force of the spring 1 6, and the sliding block 5 is located above the sliding groove 1. The sliding block 5 is rotatably connected to the connecting rod 1 3, and a connecting shaft and a connecting plate are provided at the connection. The sliding block 1 5 and the connecting rod 1 3 can drive each other to move.

[0034] A horizontal sliding groove 2 is provided on the surface of the bottom of the housing 1, and a sliding block 27 is slidably connected in the sliding groove. A spring 28 is fixedly connected to the side of the sliding block 27 close to the rear end of the housing 1. The spring 28 is provided between the sliding block 27 and the sliding groove 2, and the other end of the spring 28 is fixedly connected to the inner wall of the sliding groove 2 close to the rear end of the housing 1. In a natural state, the sliding block 27 receives the pulling force of the spring 28, and the sliding block 27 is located on the side of the sliding groove 2 close to the rear end of the housing 1. The sliding block 27 is rotatably connected to the connecting rod 24, and a connecting shaft and a connecting sheet are provided at the connection. The sliding block 27 and the connecting rod 24 can drive each other to move.

[0035] In the natural state, the angle between the connecting rod 1 3 and the connecting rod 2 4 is an obtuse angle, and the end of the connecting rod 1 3 connected to the connecting rod 2 4 is higher than the end of the connecting rod 1 3 connected to the sliding block 1 5. A button 9 is fixedly connected to the connecting rod 1 3, and an operating groove 10 is opened on the surface of the housing 1. The button 9 extends through the operating groove 10, and the button 9 only needs to be pressed when operating.

[0036] When button 9 is pressed, connecting rod 13 moves downward as a whole, and the end of connecting rod 13 connected to sliding block 15 overcomes the pulling force of spring 16 and moves downward to the bottom of sliding groove 1, and the section of connecting rod 13 connected to connecting rod 24 moves downward until connecting rod 13 as a whole is parallel to the bottom surface of the containing shell 1; in this process, the end of connecting rod 13 connected to connecting rod 24 moves toward the front end of the containing shell 1, thereby driving connecting rod 24 to move toward the front end of the containing shell 1, and the height of the end of connecting rod 24 connected to connecting rod 13 also decreases, thereby pushing sliding block 27 to overcome the pulling force of spring 28 and move toward the front end of the containing shell 1. Example 2

[0037] See also Figure 1-Figure 7 A clamping plate 2 and a push plate 11 slidably connected between the two clamping plates 2 are arranged at the front end of the housing 1. The clamping plates 2 are arranged on the side walls on the left and right sides of the housing 1 and are rotatably connected to the side walls of the housing 1. A connecting shaft and a connecting piece are arranged at the connection. The clamping plate 2 includes a clamping end and an adjusting end connected in one piece. The angle between the clamping end and the adjusting end is an obtuse angle. In the initial state, the two clamping ends are parallel and close to each other and parallel to the sliding track of the second sliding block.

[0038] A guide groove is provided inside the adjusting end of the clamping plate 2, a sliding block 3 12 is arranged inside the guide groove, a connecting plate is fixedly connected to the outer side of the sliding block 3 12, and a circular connecting groove is provided on the connecting plate.

[0039] The push plate 11 is a "convex" shaped structure, one end of which is fixedly connected to the sliding block 3 12, and the other two ends are provided with connecting hooks 13, which can be connected to the connecting plates on both sides through connecting grooves.

[0040] The connecting hook 13 and the pushing plate 11 can be set to a fixed connection or a rotating connection. In this embodiment, a rotating connection is adopted. A rotating part is set at the tail of the connecting hook 13, and a disc-shaped rotating groove is set inside the pushing plate 11. The rotating part rotates in the rotating groove, making the connection between the connecting hook 13 and the connecting plate more flexible and easier to transmit force.

[0041] In this embodiment, the thickness of the clamping plate is set to 0.2 mm, and the distance between the two clamping plates is 1.2 mm.

[0042] When the sliding block 2 7 slides, it drives the push plate 11 to move toward the front end of the accommodating shell 1, and the connecting hooks 13 on both sides of the push plate 11 drive the sliding block 3 12 connected to it to slide along the guide groove. In this process, the clamping plate 2 rotates, so that the clamping ends of the clamping plate 2 open to both sides, and the adjustment ends gradually become parallel; after the clamping position is determined, the push plate 11 moves in the opposite direction, and the two clamping ends return to the initial state. The two clamping ends are parallel and close to each other, and the artificial lens can be clamped.

[0043] This device is suitable for intraocular lens removal surgery in cases where the intraocular lens parameters are incorrect, the optical zone is damaged, the loop is broken, etc., or the intraocular lens power is significantly different from the target diopter power set before the operation, the intraocular lens is severely dislocated, the postoperative visual quality is unacceptable to the patient (such as glare, etc.), and the intraocular lens is damaged (including lens calcification, atomization, etc.). The specific operation process is as follows:

[0044] 1. Use special ophthalmic viscoelastics as buffer media to separate the original intraocular lens;

[0045] 2. After completely separating the intraocular lens, transfer the intraocular lens into the anterior chamber;

[0046] 3. Take out the artificial lens through the incision; press the button 9 on the accommodating shell 1, the connecting rod 3 moves downward as a whole, the end of the connecting rod 3 connected to the sliding block 5 overcomes the pulling force of the spring 6, and moves downward to the bottom of the sliding groove 1, and the section of the connecting rod 3 connected to the connecting rod 2 4 moves downward until the connecting rod 3 is parallel to the bottom surface of the accommodating shell 1 as a whole; in this process, the end of the connecting rod 1 3 connected to the connecting rod 2 4 moves toward the front end of the accommodating shell 1, thereby driving the connecting rod 2 4 to move toward the front end of the accommodating shell 1, and the height of the end of the connecting rod 2 4 connected to the connecting rod 1 3 is also decreasing, thereby pushing the sliding block 2 7 to overcome the pulling force of the spring 2 8 and move toward the front end of the accommodating shell 1; driving the push plate 11 to move toward the front end of the accommodating shell 1, and the connecting hooks 13 on both sides of the push plate 11 drive the sliding block 3 12 connected thereto to slide along the guide groove, in this process, the splint 2 rotates, so that the clamping end of the splint 2 opens to both sides, and the adjustment end gradually becomes parallel;

[0047] After the clamping position is determined, release the button 9 to cancel the external force, and the elastic force of spring 1 6 and spring 2 8 makes the sliding block 1 5 and the sliding block 2 7 return to the initial state, driving the connecting rod 1 3 and the connecting rod 2 4 back to the original position, pushing the plate 11 to move in the opposite direction, and the two clamping plates 2 return to the initial state. The two clamping ends are parallel and close to each other, which can complete the clamping of the artificial lens.

[0048] The intraocular lens is then folded, and after folding, the intraocular lens is held in a clamped state and removed from the incision.

[0049] 4. Insert a new artificial lens.

[0050] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An intraocular lens removal device, comprising a housing (1), characterized in that: Also includes: Clamps (2) are symmetrically arranged on the side walls of the accommodating shell (1) and are rotatably connected to the side walls; A pushing plate (11) is arranged between the two clamping plates (2) and slides inside the clamping plates (2); The second sliding block (7) is slidably connected to the bottom surface of the accommodating shell (1), one side of which is fixedly connected to a push plate (11), and the other side of which is connected to an intermittent pusher, wherein the intermittent pusher can drive the clamping plate (2) to intermittently open and reset to both sides.

2. The intraocular lens removal device according to claim 1, characterized in that: The intermittent pusher comprises a connecting rod 1 (3) and a connecting rod 2 (4), wherein the connecting rod 1 (3) is rotatably connected to the connecting rod 2 (4), and the connecting rod 2 (4) is rotatably connected to the sliding block 2 (7).

3. The intraocular lens removal device according to claim 2, characterized in that: The second sliding block (7) is slidably connected in the second sliding groove, and a second spring (8) is fixedly connected between the second sliding groove and the second sliding block (7), and the second spring (8) is arranged on a side away from the clamping plate (2).

4. The intraocular lens removal device according to claim 3, characterized in that: A sliding groove 1 is provided on the side wall of the accommodating shell (1), a sliding block 1 (5) is slidably connected in the sliding groove 1, and a spring 1 (6) is fixedly connected between the sliding block 1 (5) and the top of the sliding groove 1.

5. The intraocular lens removal device according to claim 4, characterized in that: The connecting rod 1 (3) is rotatably connected to the sliding block 1 (5).

6. The intraocular lens extraction device according to claim 1, characterized in that: The clamping plate (2) is an "L"-shaped structure, comprising a clamping end and an adjusting end connected in an integral manner, the adjusting end being rotatably connected to the side walls on both sides of the containing shell (1), the angle between the clamping end and the adjusting end being an obtuse angle, and in an initial state, the two clamping ends are parallel to and close to each other.

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