CN222854039U - Intraocular lens take-out device - Google Patents

Abstract

The utility model discloses an artificial lens taking-out device, which relates to the technical field of medical auxiliary appliances, and is characterized in that during or after an ophthalmic operation, an artificial lens is implanted, a patient is easy to be abnormal or unsuitable, and the artificial lens is required to be taken out or replaced. In general surgery, an operator usually cuts an intraocular lens under the condition of expanding a conventional transparent cornea incision and takes out the intraocular lens by using forceps, so that the operator is required to accurately and rapidly take out the intraocular lens in order not to increase the damage to eyes of a patient, but the forceps in the prior art have high requirements on operation methods and are inconvenient to use. The utility model provides an artificial lens taking-out device, which is characterized in that a clamping end for clamping an artificial lens and an operating end for operation are designed to realize clamping of the artificial lens, and a connecting rod structure is designed at the operating end, so that the clamping end is outwards opened through the cooperation of a key and a sliding block.

Description

Intraocular lens take-out device

Technical Field

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

Background

Intraocular lens implantation is one of the most commonly used surgical methods for ophthalmic use today, and is often used to improve vision impairment of patients with cataract or myopia, but sometimes the implanted lens needs to be removed with the operation being unsuccessful or the condition changing. The prior art adopts the conventional mode of taking the intraocular lens during the ophthalmic surgery that 1) the intraocular lens is folded by utilizing microscopic forceps and then is clamped, 2) the optical area of the intraocular lens is sheared and taken out by utilizing microscopic scissors, and the clinical dilemma is that 1) the surgical operation is very inconvenient by clamping the intraocular lens by the forceps, the eye of a patient is extremely easy to be damaged (corneal endothelial loss, iris injury, anterior chamber bleeding and the like), the use operation of the intraocular lens implantation is not facilitated, 2) the intraocular lens to be taken out is damaged, and the resource waste of the intraocular lens is caused, which is another disadvantage of the prior art. For the above reasons, the present utility model proposes an intraocular lens extraction device to address these deficiencies.

With the age of human, the number of cataract attacks increases year by year, and the main pathological changes of cataract are lens hardening and clouding, which need to be replaced by artificial lens. The most widely used at present are folding intraocular lenses, which can be deployed from a small incision after placement. In clinic, when the artificial lens loop is broken, the optical area is damaged, or the error of the implanted artificial lens degree is found after operation, the artificial lens needs to be taken out or replaced. At present, the mode of taking out the intraocular lens mainly comprises taking out a large incision or cutting the intraocular lens in the eye, and both modes can increase the probability of eye injury of a patient.

Disclosure of utility model

In view of the above-described problems, the present utility model is directed to an intraocular lens removing device capable of holding and removing an intraocular lens in an eye, and at the same time, capable of performing an intraocular folding operation.

The technical scheme adopted by the utility model mainly comprises the steps of realizing the clamping of the artificial lens by designing a clamping end for clamping the artificial lens and an operating end for operation, and designing a connecting rod structure at the operating end, and enabling the clamping end to be outwards opened by matching a key with a sliding block.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

An intraocular lens extraction device comprising a containment housing, further comprising:

The clamping plates are symmetrically arranged on the side walls at two sides of the accommodating shell and are rotationally connected with the side walls;

The pushing plate is arranged between the two clamping plates and slides on the inner sides of the clamping plates;

And the second sliding block is in sliding connection with the bottom surface of the accommodating shell, one side of the second sliding block is fixedly connected with a pushing plate, the other side of the second sliding block is connected with an intermittent pusher, and the intermittent pusher can drive the clamping plate to intermittently open and reset towards two sides.

Through the technical scheme, the intermittent pusher comprises a first connecting rod and a second connecting rod, wherein the first connecting rod is rotationally connected with the second connecting rod, and the second connecting rod is rotationally connected with the second sliding block.

Through the technical scheme, the sliding block II is in sliding connection in the sliding groove II, a spring II is fixedly connected between the sliding groove II and the sliding block II, and the spring II is arranged on one side far away from the clamping plate.

Through the technical scheme, the side wall of the accommodating shell is provided with the first sliding groove, the first sliding block is connected in a sliding manner, and the first spring is fixedly connected between the first sliding block and the top of the first sliding groove.

Through the technical scheme, the first connecting rod is rotationally connected with the sliding block.

Through the technical scheme, the clamping plate is of an L-shaped structure, an obtuse angle is formed between the two sections of structures, the clamping plate comprises a clamping end and an adjusting end which are integrally connected, the adjusting end is rotationally connected with the side walls on two sides of the accommodating shell, an included angle between the clamping end and the adjusting end is the obtuse angle, and in an initial state, the two clamping ends are parallel to each other and close to each other.

The beneficial effects of the utility model are as follows:

the clamping end for clamping the artificial lens and the operation end for operation are designed to realize clamping of the artificial lens.

The connecting rod structure capable of automatically resetting is designed at the operation end, the first connecting rod is rotationally connected with the second connecting rod, the other end of the first connecting rod is in sliding connection with the inner wall of the rear end of the accommodating shell, and the other end of the second connecting rod is in sliding connection with the bottom surface of the accommodating shell.

The clamping end is unfolded outwards through the matching of the key and the sliding block. When the key is pressed, the first connecting rod moves downwards integrally, one end of the first connecting rod connected with the first sliding block overcomes the tensile force of the first spring, moves downwards to the bottom of the first sliding groove, and the first connecting rod connected with the second connecting rod moves downwards until the first connecting rod is parallel to the bottom surface of the accommodating shell integrally. When the sliding block II slides, the clamping plates are driven to move to two sides, and the two clamping plates naturally open to two sides.

After the clamping position is determined, the key is loosened, the external force is cancelled, the elastic force of the first spring and the second spring enables the first sliding block and the second sliding block to return to the initial state, the first connecting rod and the second connecting rod are driven to return to the original positions, the second sliding block drives the clamping plates to move in the opposite directions, and the two clamping plates return to the initial state, so that the clamping action is completed.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the utility model with the upper cover removed;

FIG. 3 is an enlarged schematic view of the portion of FIG. 2A;

FIG. 4 is an enlarged schematic view of the portion B of FIG. 2;

FIG. 5 is a schematic view of another angular perspective with the upper cover removed in accordance with the present utility model;

FIG. 6 is a partially enlarged perspective view of FIG. 5;

FIG. 7 is a schematic perspective view of a connecting hook according to the present utility model;

The device comprises a containing shell, a clamping plate, a connecting rod I, a connecting rod II, a sliding block I, a spring I, a sliding block 7, a sliding block II, a spring II, a key, an operating groove 11, a pushing plate 12, a sliding block III and a connecting hook 13.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.

The inventor researches have found that in the ophthalmic surgery, during or after the implantation of an intraocular lens, the patient is prone to abnormality or inappropriateness, and the intraocular lens needs to be taken out or replaced. In general surgery, surgeons often use forceps to take out the intraocular lens, in order not to increase the probability of other injuries of the eyes of patients, the surgeons are required to accurately and rapidly take out the intraocular lens, but the forceps in the prior art have higher requirements on the operation method and are inconvenient to use. Therefore, how to provide a surgical instrument to facilitate the surgeon to accurately and rapidly take out the intraocular lens is an important technical problem to be solved by those skilled in the art.

Based on the above findings, the application provides an intraocular lens taking-out device, which is characterized in that a clamping end for clamping an intraocular lens and an operating end for operation are designed to clamp the intraocular lens, a connecting rod structure is designed at the operating end, and the clamping end is outwards opened through the cooperation of a key and a sliding block.

Example 1

Referring to fig. 1-6, the application discloses an intraocular lens extraction device, which comprises a containing shell 1, wherein the containing shell 1 is of a hollow structure, and the front end of the containing shell 1 is provided with an opening, so that a clamping plate 2 can conveniently extend out. The upper cover of the accommodating shell 1 is of a detachable structure, the upper cover and the accommodating shell 1 can be designed into a buckle structure, the upper cover and the accommodating shell are mutually clamped, and the upper cover and the accommodating shell are separated after use so as to be convenient for cleaning and sterilizing internal parts.

The rear end of the accommodating shell 1 is provided with a connecting rod structure, the connecting rod structure comprises a first connecting rod 3 and a second connecting rod 4, the first connecting rod 3 is rotationally connected with the second connecting rod 4, and a connecting shaft and a connecting sheet are arranged at the connecting position. The other end of the first connecting rod 3 is in sliding connection with the inner wall of the rear end of the accommodating shell 1, a first longitudinal sliding groove is formed in the inner wall of the rear end of the accommodating shell 1, a first sliding block 5 is connected in the first sliding groove in a sliding mode, a first spring 6 is fixedly connected between the upper portion of the first sliding block 5 and the first sliding groove, and the other end of the first spring 6 is fixedly connected with the inner wall of the upper end of the first sliding groove. In a natural state, the first sliding block 5 receives the tensile force of the first spring 6, and the first sliding block 5 is positioned above the first sliding groove. The sliding block I5 is rotationally connected with the connecting rod I3, and a connecting shaft and a connecting sheet are arranged at the connecting position. The sliding block I5 and the connecting rod I3 can mutually drive to move.

The face of the bottom of the accommodating shell 1 is provided with a transverse sliding groove II, a sliding block II 7 is connected in the sliding groove in a sliding way, one side, close to the rear end of the accommodating shell 1, of the sliding block II is fixedly connected with a spring II 8, the spring II 8 is arranged between the sliding block II 7 and the sliding groove II, and the other end of the spring II 8 is fixedly connected with the inner wall, close to the rear end of the accommodating shell 1, of the sliding groove II. In a natural state, the second sliding block 7 receives the tensile force of the second spring 8, and the second sliding block 7 is positioned on one side of the second sliding groove close to the rear end of the accommodating shell 1. The second sliding block 7 is rotationally connected with the second connecting rod 4, and a connecting shaft and a connecting sheet are arranged at the connecting position. The second sliding block 7 and the second connecting rod 4 can mutually drive to move.

In a natural state, an included angle between the first connecting rod 3 and the second connecting rod 4 is an obtuse angle, and the position of one end of the first connecting rod 3 connected with the second connecting rod 4 is higher than that of one end of the first connecting rod 3 connected with the first sliding block 5. The first connecting rod 3 is fixedly connected with a key 9, an operation groove 10 is formed in the surface of the accommodating shell 1, the key 9 extends out through the operation groove 10, and only the key 9 is needed to be pressed during operation.

When the key 9 is pressed, the whole of the first connecting rod 3 moves downwards, one end of the first connecting rod 3 connected with the first sliding block 5 overcomes the tensile force of the first spring 6 and moves downwards to the bottom of the first sliding groove, one section of the first connecting rod 3 connected with the second connecting rod 4 moves downwards until the whole of the first connecting rod 3 is parallel to the bottom surface of the accommodating shell 1, in the process, one end of the first connecting rod 3 connected with the second connecting rod 4 moves towards the front end of the accommodating shell 1, so that the second connecting rod 4 is driven to move towards the front end of the accommodating shell 1, the height of one end of the second connecting rod 4 connected with the first connecting rod 3 is lowered, and the second sliding block 7 is pushed to move towards the front end of the accommodating shell 1 against the tensile force of the second spring 8.

Example 2

Referring to fig. 1 to 7, a clamping plate 2 and a pushing plate 11 slidably connected between the two clamping plates 2 are disposed at the front end of the accommodating housing 1, the clamping plates 2 are disposed on the side walls of the left and right sides of the accommodating housing 1 and are rotatably connected with the side walls of the accommodating housing 1, and a connecting shaft and a connecting sheet are disposed at the connecting position. The clamping plate 2 comprises a clamping end and an adjusting end which are integrally connected, wherein an included angle between the clamping end and the adjusting end is an obtuse angle, and in an initial state, the two clamping ends are parallel to each other and close to each other and are parallel to a sliding track of the sliding block II.

The guide way is arranged on the inner side of the adjusting end of the clamping plate 2, the sliding block III 12 is arranged in the guide way, the connecting plate is fixedly connected on the outer side of the sliding block III 12, and the circular connecting groove is arranged on the connecting plate.

The pushing plate 11 is of a convex structure, one end of the pushing plate is fixedly connected with the sliding block III 12, and the other two ends of the pushing plate are provided with connecting hooks 13 which can be connected with connecting plates on two sides through connecting grooves.

The connecting hook 13 and the pushing plate 11 can be fixedly connected and also can be rotationally connected, in this embodiment, the tail part of the connecting hook 13 is provided with a rotating piece, a disc-shaped rotating groove is formed in the pushing plate 11, and the rotating piece rotates in the rotating groove, so that the connecting hook 13 and the connecting plate are connected more flexibly and the force is transmitted more easily.

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

When the second sliding block 7 slides, the pushing plate 11 is driven to move towards the front end of the accommodating shell 1, the connecting hooks 13 at the two sides of the pushing plate 11 drive the third sliding block 12 connected with the pushing plate 11 to slide along the guide grooves, in the process, the clamping plates 2 rotate to enable the clamping ends of the clamping plates 2 to open towards the two sides and the adjusting ends to become parallel gradually, after the clamping positions are determined, the pushing plate 11 moves in the opposite direction, the two clamping plates 2 return to the initial state, and the two clamping ends are parallel and close to each other, so that the clamping of the intraocular lens can be completed.

The device is suitable for the artificial lens taking-out operation in which the situations of wrong parameters, damage of an optical area, broken loop and the like of the artificial lens or the situations of large difference between the degree of the artificial lens and the set target brightness number before the operation, serious dislocation of the artificial lens, unacceptable postoperative vision quality factors (such as glare and the like) of a patient, damage of the artificial lens (including the situations of calcification, atomization and the like of the crystal) and the like are found in the artificial lens operation. The specific operation flow is as follows:

1. Using special ophthalmic viscoelastic as a buffer medium to separate the original artificial lens;

2. after thoroughly separating the intraocular lens, transferring the intraocular lens into the anterior chamber;

3. The method comprises the steps of taking out an intraocular lens through a notch, pressing a key 9 on a containing shell 1, enabling a connecting rod I3 to move downwards integrally, enabling one end, connected with a sliding block I5, of the connecting rod I3 to overcome the tensile force of a spring I6 and move downwards to the bottom of a sliding groove I, enabling one section, connected with a connecting rod II 4, of the connecting rod I3 to move downwards until the connecting rod I3 is integrally parallel to the bottom surface of the containing shell 1, enabling one end, connected with the connecting rod II 4, of the connecting rod I3 to move towards the front end of the containing shell 1, driving the connecting rod II 4 to move towards the front end of the containing shell 1 by means of the tensile force of a spring II 8, driving a pushing plate 11 to move towards the front end of the containing shell 1, enabling connecting hooks 13 on two sides of the pushing plate 11 to drive sliding blocks III 12 connected with the pushing plate to slide along the guiding grooves, enabling clamping ends of the clamping plates 2 to stretch towards two sides in the process, and enabling the clamping ends of the clamping plates 2 to be gradually parallel to each other;

After the clamping position is determined, the key 9 is loosened, the external force is cancelled, the elasticity of the first spring 6 and the second spring 8 enables the first sliding block 5 and the second sliding block 7 to return to the initial state, the first connecting rod 3 and the second connecting rod 4 are driven to return to the original positions, the pushing plate 11 moves in the opposite direction, the two clamping plates 2 return to the initial state, and the two clamping ends are parallel and close to each other, so that the clamping of the artificial lens can be completed.

And then folding the artificial lens, and taking out the artificial lens from the incision after the artificial lens is folded and kept in a clamping state.

4. A new intraocular lens is placed.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. An intraocular lens extraction device comprising a containing housing (1), characterized in that it further comprises:

the clamping plates (2) are symmetrically arranged on the side walls at two sides of the accommodating shell (1) and are rotationally connected with the side walls;

the pushing plate (11) is arranged between the two clamping plates (2) and slides on the inner sides of the clamping plates (2);

And the second sliding block (7) is in sliding connection with the bottom surface of the accommodating shell (1), one side of the sliding block is fixedly connected with a pushing plate (11), the other side of the sliding block is connected with an intermittent pusher, and the intermittent pusher can drive the clamping plate (2) to intermittently open and reset towards the two sides.

2. The intraocular lens extraction device of claim 1 wherein said intermittent pusher comprises a first connecting rod (3) and a second connecting rod (4), said first connecting rod (3) being rotatably connected to said second connecting rod (4), said second connecting rod (4) being rotatably connected to said second slider (7).

3. The intraocular lens extraction device according to claim 2, wherein the second sliding block (7) is slidably connected in the second sliding groove, a second spring (8) is fixedly connected between the second sliding groove and the second sliding block (7), and the second spring (8) is disposed on a side far away from the clamping plate (2).

4. The intraocular lens extraction device according to claim 3, wherein the side wall of the housing (1) is provided with a first sliding groove, a first sliding block (5) is connected in a sliding manner in the first sliding groove, and a first spring (6) is fixedly connected between the first sliding block (5) and the top of the first sliding groove.

5. The intraocular lens extraction device as claimed in claim 4 wherein said first connecting rod (3) is rotatably connected to said first slider (5).

6. The intraocular lens extraction device according to claim 1, wherein the clamping plate (2) is of an L-shaped structure, and comprises a clamping end and an adjusting end which are integrally connected, wherein the adjusting end is rotatably connected with the side walls on both sides of the accommodating housing (1), an included angle between the clamping end and the adjusting end is an obtuse angle, and in an initial state, the two clamping ends are parallel and close to each other.