ICL crystal taking-out equipment and taking-out method thereof

Abstract

The invention discloses an ICL (intraocular lens) taking-out device, namely an intraocular lens taking-out device with a lenticular eye, which comprises a holding fixing cylinder and a tweezers taking mechanism arranged on one side of the holding fixing cylinder and used for tweezers taking of the lens, and an adjustable switching structure used for adjusting the tweezers taking mechanism is arranged in the holding fixing cylinder. The safety and efficiency of the taking-out process are remarkably improved through the improved ICL crystal taking-out equipment. Compared with a traditional method, the controllability and stability of the taking-out process are enhanced, the crystal clamping efficiency is improved, the crystal is effectively prevented from loosening in the taking-out process, and therefore damage to eye tissue is reduced. In addition, the extractor is not only suitable for extracting the ICL, but also suitable for extracting other types of intraocular lenses with crystalline lenses, and is also suitable for extracting intraocular lenses after cataract operation, and the application range of the extractor is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of ICL lens extraction, and in particular to an ICL lens extraction device and an extraction method thereof. Background Art

[0002] At present, artificial lenses (also known as intraocular lenses) are mainly divided into two categories: one is an artificial lens that is implanted to replace the natural lens after the cloudy lens is removed during cataract surgery; the other is an implantable artificial lens designed to correct refractive errors (including myopia, hyperopia, and astigmatism), namely the intraocular lens (ICL lens).

[0003] After cataract surgery, the artificial lens may shift, dislocate, or become cloudy or flare-like. These problems will affect the patient's vision and the artificial lens will be removed and replaced if necessary.

[0004] After ICL implantation, if the specifications or power of the implanted ICL lens are inappropriate, or if the patient subsequently develops eye problems such as cataracts, the ICL lens may need to be removed or replaced if necessary.

[0005] There are currently no products on the market specifically designed for removing intraocular lenses. Traditional removal methods usually involve using scissors to cut up the intraocular lens, and then removing it piece by piece with knee-shaped forceps. This method causes the corneal incision to increase, the wound to heal slowly, and the scissors can damage eye tissues such as the iris and corneal endothelium when cutting up the intraocular lens. In addition, the broken end of the intraocular lens may also scratch the eye tissue during the removal process. For ICL lenses, although they do not need to be cut up due to their softness, using forceful force with tweezers may still cause damage to eye tissue or tearing of the ICL. Summary of the invention

[0006] The object of the present invention is to provide an ICL lens removal device and a removal method thereof, which have the advantages of facilitating the removal of artificial lenses in phakic eyes and reducing damage to eye tissues during the removal process, and solve the problem that the traditional removal method usually involves using scissors to cut up the artificial lens, and then using knee-shaped tweezers to remove it piece by piece. This method will cause the corneal incision to increase, the wound to heal slowly, and the scissors will cause damage to eye tissues such as the iris and corneal endothelium when cutting up the artificial lens. In addition, the broken end surface of the artificial lens may also scratch the eye tissue during the removal process. For ICL lenses, although they do not need to be cut up due to their softness, using tweezers to pull them out forcefully may still cause damage to eye tissues or tearing of the ICL crystal.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ICL lens removal device, comprising a holding and fixing tube, and a tweezer mechanism arranged on one side of the holding and fixing tube for tweezing the crystal, wherein an adjustable switching structure for adjusting the tweezer mechanism is arranged inside the holding and fixing tube, and when the ICL crystal is removed, the position and opening and closing of the tweezer mechanism are changed by using the adjustable switching structure to remove the crystal.

[0008] As a preferred ICL lens removal device of the present invention, one end of the holding and fixing cylinder is connected to a crystal receiving tube, and the crystal receiving tube and the holding and fixing cylinder are thermoplastically integrally formed, wherein one end of the crystal receiving tube is beveled.

[0009] As a preferred ICL lens removal device of the present invention, the inner surface of the crystal collection tube is provided with a crystal collection guide cavity, and the inner surface of the holding and fixing tube is provided with a bearing cavity. At the same time, an introduction cavity which is interconnected with the crystal collection guide cavity is provided on the left side of the inner surface of the holding and fixing tube.

[0010] As a preferred ICL lens removal device of the present invention, the tweezers mechanism includes two symmetrically arranged tweezers heads, wherein one end of the tweezers head is connected to an elastic connecting plate, wherein the tweezers head is in the shape of duck-billed crocodile teeth, for increasing gripping friction.

[0011] As a preferred ICL lens removal device of the present invention, the material of the elastic connecting plate is spring steel with high resilience.

[0012] As a preferred ICL lens removal device of the present invention, the adjustable transfer structure includes a needle withdrawal rotating handle, and one end of the needle withdrawal rotating handle is connected to the needle withdrawal structure, and the outer surface of the needle withdrawal structure is threadedly connected to the inner surface of the holding fixed cylinder.

[0013] As a preferred ICL lens removal device of the present invention, a switching shaft is provided through the inner cavity of the needle withdrawal rotating handle, the switching shaft is threadedly connected to the inner surface of the needle withdrawal rotating handle, and a control handle is sleeved on the right side of the outer surface of the switching shaft.

[0014] As a preferred ICL lens removal device of the present invention, a connecting rod is provided on one side of the transfer shaft, wherein an inner push cylinder is provided on one side of the connecting rod, and an abutment groove cavity for installing an elastic connecting plate is opened on the inner surface of the inner push cylinder.

[0015] As a preferred ICL lens removal device of the present invention, one end of the adapter shaft surface is connected to a tweezer head rotating stabilizing sleeve, and the tweezer head rotating stabilizing sleeve and the inner push cylinder are installed with each other, wherein the tweezer head rotating stabilizing sleeve is threadedly connected to the inner cavity of the introduction cavity, so that when the connecting rod is rotated under force, it can drive the tweezer head rotating stabilizing sleeve to rotate, thereby pulling the inner push cylinder to move, and opening and closing the tweezer head of the tweezer removal mechanism.

[0016] A method for removing an ICL lens removal device comprises the following steps:

[0017] 1) Preoperative preparation

[0018] Prepare to remove the device, ensuring all parts are properly installed and functioning, and the patient's eye should be prepared for surgery;

[0019] 2) Preparation of forceps removal mechanism

[0020] Use your left hand to hold the holding cylinder to ensure that the position of the forceps mechanism is stable, and use your right hand to operate the needle withdrawal handle and control handle;

[0021] 3) Open and close the tweezer mechanism

[0022] Control the tweezer head handle to turn the transfer shaft rod to rotate, so that the inner push tube moves inward, releases the excessive limit on the elastic connecting plate, and opens the two tweezer heads;

[0023] 4) Closure and retraction of the forceps mechanism

[0024] The transfer shaft is operated by the control handle to close the tweezer mechanism, and the needle withdrawal handle is rotated to retract the tweezer mechanism as a whole into the crystal guide cavity;

[0025] 5) Advance to the crystal position

[0026] Push the forceps mechanism into the pre-made 3mm corneal incision; continue to rotate the needle withdrawal handle to make the forceps mechanism reach the lens forceps position;

[0027] 6) Clamping the crystal

[0028] Turn the control handle to make the tweezer mechanism accurately clamp the crystal;

[0029] 7) Withdraw the tweezers and crystal

[0030] Turn the needle withdrawal handle again to pull the tweezer mechanism and the edge of the clamped crystal into the crystal receiving guide cavity, and continue to turn the needle withdrawal handle until the crystal is completely received in the guide cavity;

[0031] 8) Exit the extractor

[0032] Safely withdraw the entire extraction device from the corneal incision;

[0033] 9) Inspection and cleaning

[0034] Check whether the removed crystal is intact, clean the removal equipment, and prepare for the next use.

[0035] The application scope of an ICL lens removal device is not only suitable for removing ICL lenses, but also suitable for removing other types of intraocular lenses in phakic eyes, and is also suitable for removing intraocular lenses after cataract surgery, thereby broadening its application scope.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. The present invention improves the pre-installed rotary push-injection intraocular lens implanter used in ophthalmology, and adopts a lens removal device with a long flat shape and multiple threads that can be snapped on made of special materials, which significantly reduces the damage to eye tissue during the removal process. The specially designed adjustable adapter structure cooperates with the forceps removal mechanism to clamp the lens more stably and reduce the damage to eye tissue. The controllability and stability of the removal process are increased by adopting rotary removal instead of manual forceps. The improved forceps removal mechanism is not a conventional lens forceps, which improves the clamping efficiency and reduces the risk of lens slippage during the removal process.

[0038] 2. The redesigned intraocular lens removal device of the present invention is not only suitable for ICL lens removal, but also suitable for removal of intraocular lenses of other types of phakic eyes, and is also suitable for removal of intraocular lenses after cataract surgery. By improving the intraocular lens removal device, the removal process is made simpler and faster, and the difficulty of the operation is reduced. At the same time, the damage to the eye tissue during the removal process is reduced, which helps to reduce postoperative complications and speed up the patient's postoperative recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a three-dimensional assembly schematic diagram of the overall structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the local structure of the crystal receiving tube of the present invention;

[0041] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 4 It is a schematic diagram of the structure of the present invention along the AA section;

[0043] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0044] In the figure: 1. tweezers taking mechanism; 101. tweezers head; 102. elastic connecting plate; 2. crystal receiving tube; 210. crystal receiving guide cavity; 220. introduction cavity; 230. bearing cavity; 3. tweezers head rotating stabilizing sleeve; 4. holding and fixing cylinder; 5. needle withdrawal structure; 6. needle withdrawal rotating handle; 7. control handle; 8. adapter shaft; 9. inner push cylinder; 901. abutment groove cavity; 10. connecting rod. DETAILED DESCRIPTION

[0045] Example 1

[0046] A method for using an ICL lens removal device comprises the following steps:

[0047] 1) Preoperative preparation

[0048] Prepare to remove the device, ensuring all parts are properly installed and functioning, and the patient's eye should be prepared for surgery;

[0049] 2) Preparation of forceps mechanism 1

[0050] Use your left hand to hold the fixed cylinder 4 to ensure that the position of the forceps mechanism 1 is stable, and use your right hand to operate the needle withdrawal rotating handle 6 and the control handle 7;

[0051] 3) Open and close the forceps mechanism 1

[0052] The tweezers head handle control handle 7 is used to turn the transfer shaft 8 to rotate, so that the inner push tube 9 moves inward, and the excessive limit of the elastic connecting plate 102 is released, so that the two tweezers heads 101 are opened;

[0053] 4) Closing and retraction of forceps mechanism 1

[0054] The transfer shaft 8 is operated by the control handle 7 to close the forceps mechanism 1, and the needle withdrawal handle 6 is rotated to put the forceps mechanism 1 as a whole into the crystal guide cavity 210;

[0055] 5) Advance to the crystal position

[0056] Push the forceps mechanism 1 into the pre-made 3 mm corneal incision; continue to rotate the needle withdrawal handle 6 to make the forceps mechanism 1 reach the lens forceps position;

[0057] 6) Clamping the crystal

[0058] Turn the control handle 7 to enable the tweezer mechanism 1 to accurately clamp the crystal;

[0059] 7) Withdraw the tweezer mechanism 1 and the crystal

[0060] The needle withdrawal rotating handle 6 is rotated again to pull the tweezers taking mechanism 1 and the edge of the clamped crystal into the crystal receiving guide cavity 210, and the needle withdrawal rotating handle 6 is continued to be rotated until the crystal is completely received in the guide cavity;

[0061] 8) Exit the extractor

[0062] Safely withdraw the entire extraction device from the corneal incision;

[0063] 9) Inspection and cleaning

[0064] Check whether the removed crystal is intact, clean the removal equipment, and prepare for the next use.

[0065] Example 2

[0066] See also Figure 1-Figure 5 , an ICL lens extraction device, i.e. a phakic intraocular lens extraction device, comprising a holding and fixing tube 4, one end of which is connected to a lens receiving tube 2, and the lens receiving tube 2 and the holding and fixing tube 4 are thermoplastically integrally formed, wherein one end of the lens receiving tube 2 is chamfered, and one end of the holding and fixing tube 4 is conical;

[0067] Specifically, a crystal receiving guide cavity 210 is provided on the inner surface of the crystal receiving tube 2, and a bearing cavity 230 is provided through the inner surface of the holding and fixing tube 4. Meanwhile, an introduction cavity 220 which is in communication with the crystal receiving guide cavity 210 is provided through the left side of the inner surface of the holding and fixing tube 4, and the inner cavity shape of the introduction cavity 220 is conical. Specifically, the crystal receiving guide cavity 210 and the bearing cavity 230 are in communication with each other through the introduction cavity 220, so that a channel for the adjustable transfer structure to be adjusted and moved is formed between the crystal receiving guide cavity 210, the introduction cavity 220 and the bearing cavity 230, so that the adjustable transfer structure can adjust the tweezers taking mechanism 1 to take out the crystal;

[0068] Specifically, the ICL lens removal device also includes a tweezer mechanism 1 arranged on one side of the holding fixed cylinder 4 for tweezing the lens, and the tweezer mechanism 1 includes two symmetrically arranged tweezer heads 101, wherein one end of the tweezer head 101 is connected to an elastic connecting plate 102, wherein the tweezer head 101 is in the shape of a duck-billed crocodile tooth, which is used to increase the grasping friction, and the other end of the elastic connecting plate 102 extends to the inner cavity of the abutting groove cavity 901, and when the inner push cylinder 9 moves, it can change its position with the elastic connecting plate 102, and squeeze the elastic connecting plate 102 to tighten, on the contrary, under the elastic action of the elastic connecting plate 102 and with the cooperation of the inner push cylinder 9, the tweezer head 101 is deployed to open, wherein the side of the tweezer head 101 is beveled;

[0069] The elastic connecting plate 102 is made of a material of spring steel, titanium alloy and high-resilience sponge, has high resilience, and is used for the opening and closing of the two tweezer heads 101;

[0070] In order to facilitate the operation of the crystal receiving tube 2; the interior of the holding fixed tube 4 is provided with an adjustable switching structure for adjusting the forceps taking mechanism 1. When taking out the ICL crystal, the adjustable switching structure is used to change the position and opening and closing of the forceps taking mechanism 1 to take out the crystal;

[0071] Specifically, the adjustable transfer structure includes a needle withdrawal rotating handle 6, and one end of the needle withdrawal rotating handle 6 is connected to the needle withdrawal structure 5, the outer surface of the needle withdrawal structure 5 is provided with an external thread, and one end of the bearing cavity 230 in the holding and fixing tube 4 is provided with an internal thread, and the outer surface of the needle withdrawal structure 5 is threadedly connected with the inner surface of the holding and fixing tube 4. Under the cooperation of the needle withdrawal structure 5 and the holding and fixing tube 4, the needle withdrawal rotating handle 6 can be movably fixed. Therefore, when the needle withdrawal rotating handle 6 is rotated, the needle withdrawal structure 5 can change its own position, thereby adjusting the position of the tweezers mechanism 1, so that the tweezers mechanism 1 can be retracted into the crystal receiving tube 2;

[0072] Specifically, the inner cavity of the needle withdrawal rotating handle 6 is penetrated by a transfer shaft 8, and the transfer shaft 8 is threadedly connected to the inner surface of the needle withdrawal rotating handle 6, and the transfer shaft 8 is used in conjunction with the forceps taking mechanism 1 and the inner push tube 9. The transfer shaft 8 is used in conjunction with the forceps taking mechanism 1 and the inner push tube 9. At the same time, the transfer shaft 8, the connecting rod 10 and the inner push tube 9 are used in conjunction with each other to control the forceps taking mechanism 1 to open and close. The right side of the outer surface of the transfer shaft 8 is sleeved with a control handle 7, and the control handle 7 can increase the contact area of ​​the user's hand, so that the transfer shaft 8 can be rotated conveniently;

[0073] A connecting rod 10 is provided on one side of the transfer shaft 8, wherein an inner push tube 9 is provided on one side of the connecting rod 10, and an abutting groove cavity 901 for installing the elastic connecting plate 102 is provided on the inner surface of the inner push tube 9;

[0074] One end of the surface of the adapter shaft 8 is connected to a tweezer head rotating stabilizing sleeve 3, and the tweezer head rotating stabilizing sleeve 3 and the inner push tube 9 are installed with each other, wherein the tweezer head rotating stabilizing sleeve 3 is threadedly connected to the inner cavity of the introduction cavity 220, so that when the connecting rod 10 is rotated under force, it can drive the tweezer head rotating stabilizing sleeve 3 to rotate, thereby pulling the inner push tube 9 to move, and opening and closing the tweezer head 101 of the tweezer picking mechanism 1.

[0075] The working principle of the ICL lens removal device is as follows: use the left hand to hold the holding fixed cylinder 4 to ensure the stable position of the tweezers mechanism 1, use the right hand to operate the needle withdrawal rotating handle 6 and the control handle 7, control the tweezers head handle 7 to turn the transfer shaft 8 to rotate, and use the connecting rod 10 to move the inner push cylinder 9 inward to release the excessive limit of the elastic connecting plate 102, so that the two tweezers heads 101 are opened, and the transfer shaft 8 is operated by the control handle 7 to close the tweezers mechanism 1, and the needle withdrawal rotating handle 6 is rotated to put the tweezers mechanism 1 into the lens as a whole. In the guide cavity 210, push the tweezers mechanism 1 into the pre-made 3mm corneal incision; continue to rotate the needle withdrawal handle 6 to make the tweezers mechanism 1 reach the tweezing position of the lens, rotate the control handle 7 to make the tweezers mechanism 1 accurately clamp the lens, rotate the needle withdrawal handle 6 again, pull the tweezers mechanism 1 and the clamped crystal edge into the guide cavity 210 together, continue to rotate the needle withdrawal handle 6 until the crystal is completely received in the guide cavity, and safely withdraw the entire removal device from the corneal incision, thereby completing the removal of the lens.

[0076] Example 3

[0077] The application scope of an ICL lens removal device is not only suitable for removing ICL lenses, but also suitable for removing other types of intraocular lenses in phakic eyes, and is also suitable for removing intraocular lenses after cataract surgery, thereby broadening its application scope.

[0078] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ICL lens removal device, characterized in that: The invention comprises a holding and fixing tube (4), and a tweezing mechanism (1) arranged on one side of the holding and fixing tube (4) for tweezing an ICL crystal. An adjustable switching structure for adjusting the tweezing mechanism (1) is arranged inside the holding and fixing tube (4). When the ICL crystal is taken out, the position and opening and closing of the tweezing mechanism (1) are changed by using the adjustable switching structure to take out the crystal.

2. The ICL lens removal device according to claim 1, characterized in that: One end of the holding and fixing tube (4) is connected to the crystal receiving tube (2), and the crystal receiving tube (2) and the holding and fixing tube (4) are thermoplastically integrally formed, wherein one end of the crystal receiving tube (2) is beveled.

3. The ICL lens removal device according to claim 2, characterized in that: The inner surface of the crystal receiving tube (2) is provided with a crystal receiving guide cavity (210), and the inner surface of the holding and fixing tube (4) is provided with a bearing cavity (230) extending therethrough. Meanwhile, an introduction cavity (220) communicating with the crystal receiving guide cavity (210) is provided on the left side of the inner surface of the holding and fixing tube (4).

4. The ICL lens removal device according to claim 3, characterized in that: The tweezers mechanism (1) comprises two symmetrically arranged tweezers heads (101), wherein one end of the tweezers head (101) is connected to an elastic connecting plate (102), wherein the tweezers head (101) is in the shape of duck-billed crocodile teeth, and is used to increase the gripping friction.

5. The ICL lens removal device according to claim 4, characterized in that: The elastic connecting plate (102) is made of spring steel and has high resilience.

6. The ICL lens removal device according to claim 5, characterized in that: The adjustable transfer structure comprises a needle withdrawal rotating handle (6), one end of which is connected to a needle withdrawal structure (5), and an outer surface of the needle withdrawal structure (5) is threadedly connected to an inner surface of the holding fixed cylinder (4).

7. The ICL lens removal device according to claim 6, characterized in that: A transfer shaft (8) is provided through the inner cavity of the needle withdrawal rotating handle (6), the transfer shaft (8) is threadedly connected to the inner surface of the needle withdrawal rotating handle (6), and a control handle (7) is sleeved on the right side of the outer surface of the transfer shaft (8).

8. The ICL lens removal device according to claim 7, characterized in that: A connecting rod (10) is provided on one side of the transfer shaft (8), wherein an inner push tube (9) is provided on one side of the connecting rod (10), and an abutment groove cavity (901) for installing an elastic connecting plate (102) is provided on the inner surface of the inner push tube (9).

9. The ICL lens removal device according to claim 8, characterized in that: One end of the surface of the adapter shaft (8) is connected to a tweezer head rotating stabilizing sleeve (3), and the tweezer head rotating stabilizing sleeve (3) and the inner push tube (9) are installed with each other, wherein the tweezer head rotating stabilizing sleeve (3) is threadedly connected to the inner cavity of the introduction cavity (220), so that when the connecting rod (10) is rotated under force, it can drive the tweezer head rotating stabilizing sleeve (3) to rotate, thereby pulling the inner push tube (9) to move, and opening and closing the tweezer head (101) of the tweezer picking mechanism (1).

10. A method for removing an ICL lens from a device, comprising the ICL lens removal device according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) Preoperative preparation Prepare to remove the device, ensuring all parts are properly installed and functioning, and the patient's eye should be prepared for surgery; 2) Tweezers mechanism (1) Preparation Use the left hand to hold the holding fixed cylinder (4) to ensure that the position of the forceps removal mechanism (1) is stable, and use the right hand to operate the needle withdrawal rotation handle (6) and the control handle (7); 3) Tweezer mechanism (1) Open and close The control handle (7) of the tweezers head is used to turn the transfer shaft (8) to rotate, so that the inner push cylinder (9) moves inward, and the excessive limit of the elastic connecting plate (102) is released, so that the two tweezers heads (101) are opened; 4) Tweezers mechanism (1) Closing and retraction The transfer shaft (8) is operated by a control handle (7) to close the forceps taking mechanism (1), and the needle withdrawal rotating handle (6) is rotated to retract the forceps taking mechanism (1) as a whole into the crystal receiving guide cavity (210); 5) Advance to the crystal position Push the forceps removal mechanism (1) into the pre-made 3 mm corneal incision; continue to rotate the needle withdrawal handle (6) to make the forceps removal mechanism (1) reach the lens removal position; 6) Clamping the crystal Turning the control handle (7) to enable the tweezer mechanism (1) to accurately clamp the crystal; 7) Withdraw the tweezer mechanism (1) and the crystal The needle withdrawal rotating handle (6) is rotated again to pull the tweezers taking mechanism (1) and the edge of the clamped crystal into the crystal receiving guide cavity (210), and the needle withdrawal rotating handle (6) is continuously rotated until the crystal is completely received in the guide cavity; 8) Exit the extractor Safely withdraw the entire extraction device from the corneal incision; 9) Inspection and cleaning Check whether the removed crystal is intact, clean the removal equipment, and prepare for the next use.

11. The application scope of an ICL lens removal device is characterized by: This removal device is not only suitable for the removal of ICL lenses, but also for the removal of other types of intraocular lenses in phakic eyes, and is also suitable for the removal of intraocular lenses after cataract surgery, thus broadening its scope of application.

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