Intraocular intraocular lens auxiliary implantation system

Abstract

The utility model discloses an intraocular intraocular lens auxiliary implantation system which comprises a leading-in head, a main body, a push rod, a stop pin and an intraocular lens, the front end of the main body is connected with the leading-in head, the push rod is inserted into the main body, the intraocular lens is placed in the leading-in head, an anti-rotation groove is formed in an inner cavity of the main body, a push-injection head is arranged at the front end of the push rod, and the stop pin is inserted into the push-injection head. The rear end of the injection head is provided with an injection stopping groove, the side face of the injection stopping groove is provided with an anti-rotation structure, the anti-rotation structure is matched with the anti-rotation groove, and the lower side of the leading-in head is provided with a connecting mechanism. The leading-in head is of a flat plate type and does not need to be folded, the intraocular lens is easy to load, and potential risks are avoided; the guide-in head is matched with a reusable intraocular lens injector for use, various guide-in heads can be matched with the same reusable intraocular lens injector, the cost can be reduced, the market competitiveness can be improved, the guide-in head is convenient to assemble and disassemble, and the guide-in head can be used for hydrophobic intraocular lenses and also can be used for hydrophilic intraocular lenses.

Description

Technical Field

[0001] This utility model relates to the field of artificial lens technology, and in particular to an intraocular artificial lens assisted implantation system. Background Technology

[0002] Intraocular lens (IOL) implantation surgery has undergone significant changes with the development of lens material technology. Currently, the mainstream IOL is the foldable IOL, and the primary implantation method is implantation via an implanter. This involves using an implanter to fold and compress the foldable IOL before implanting it into the patient's eye, offering the advantage of a small surgical incision. The core of the implanter is the guide tip. The guide tip is typically foldable. For foldable IOLs, the IOL needs to be pre-loaded into the folding cavity before the guide tip is folded. During the folding process, the lens can easily be damaged, leading to implantation failure. Furthermore, debris can easily fall from the guide tip during folding, allowing small amounts of debris to directly enter the implanter cavity. During subsequent injection of the IOL into the eye, this debris can be pushed into the eye along with the IOL, potentially causing intraocular inflammation. Moreover, current technology requires a specific guide tip for each implanter, significantly increasing product costs. Therefore, there is an urgent need to develop an intraocular IOL-assisted implantation system to address these technical problems.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] The purpose of this invention is to provide an intraocular intraocular lens (IOL) assisted implantation system. The implantation head is flat and does not require folding, making IOL loading simple and avoiding potential risks. When used in conjunction with a reusable IOL injector, multiple implantation heads can be adapted to the same reusable IOL injector, which can reduce costs and increase market competitiveness. Moreover, it is easy to assemble and disassemble and can be used with both hydrophobic and hydrophilic IOLs, showing broad application prospects and facilitating its widespread application.

[0005] To achieve the above objectives, this utility model provides an intraocular intraocular lens assisted implantation system, comprising an inlet head, a main body, a push rod, a stop pin, and an intraocular lens. The front end of the main body is connected to the inlet head, the push rod is inserted into the main body, and the intraocular lens is placed inside the inlet head.

[0006] The main body has an anti-rotation groove in its inner cavity, a stop pin groove in the middle of the outer side of the main body, a symmetrical limiting groove on both sides at the front end of the main body, a symmetrical stop surface two at the rear end of the limiting groove, a symmetrical buckling groove two at the rear end of the stop surface two, a symmetrical buckling groove three at the rear end of the buckling groove two, a buckling groove one at the lower end of the buckling groove three, and a clearance groove at the rear end of the buckling groove one.

[0007] The front end of the push rod is provided with an injection head, which has an upper part and a lower part. The upper part and the lower part of the injection head are fork-shaped. The injection head is a downward type and always moves in contact with the lower end of the inner cavity of the inlet head. The rear end of the injection head is provided with an injection stop groove. The side of the injection stop groove is provided with an anti-rotation structure. The anti-rotation structure cooperates with the anti-rotation groove to prevent the push rod from rotating in the main body and ensure that the intraocular lens is not damaged.

[0008] The stop pin and the stop pin groove are interference-fitted to prevent them from falling off during use. The stop pin passes through the push rod stop groove, which can restrict the rotation of the push rod and the left and right movement of the push rod. When the push rod moves forward, the stop pin and the front end of the stop pin groove stop, ensuring the push rod moves forward and preventing the push rod from being pushed too far and injuring the eyes. When the push rod moves backward, the stop pin and the rear end of the stop pin groove stop, preventing the push rod from falling out of the main body.

[0009] The inlet head has two symmetrical limiting surfaces in the middle, which are connected to the limiting groove to fix the inlet head and prevent it from moving forward. The inlet head has two symmetrical stop surfaces on the lower side, which are connected to the stop surface to fix the inlet head and prevent it from moving downward. The inlet head also has a connecting mechanism on the lower side, which is connected to the main body to fix the inlet head and prevent it from moving upward, thus ensuring smooth injection of the intraocular lens.

[0010] Preferably, the connecting mechanism is a hook, which cooperates with the buckle groove to fix the guide head.

[0011] Preferably, the connecting mechanism is a ball-locking mechanism, which is connected to a snap-fit ​​groove to fix the guide head.

[0012] Preferably, the connecting mechanism is a second hook, which is connected to the first buckle groove to fix the guide head.

[0013] Preferably, the connecting mechanism is a slot one, which is connected to a buckle slot two to fix the guide head.

[0014] Preferably, the connecting mechanism is a second slot, which is connected to a third buckle slot to fix the guide head.

[0015] The present invention provides an intraocular intraocular lens-assisted implantation system, which has the following beneficial effects.

[0016] 1. The inlet head of this utility model is flat and does not require folding, making it simple to load the intraocular lens and avoiding potential risks. When used with a reusable intraocular lens injector, it is easy to assemble and disassemble. It can be used for both hydrophobic and hydrophilic intraocular lenses.

[0017] 2. The various inlet heads of this utility model can be adapted to the same reusable intraocular lens injector, which can reduce costs and increase market competitiveness.

[0018] 3. The upper and lower sides of the injection head of this utility model are fork-shaped. The injection head is a downward pressing type. The injection head always moves in contact with the lower end of the inner cavity of the injector head, ensuring that there is no gap between the lower side of the injection head and the lower end of the inner cavity of the injector head, thereby avoiding injury from being pinched between the lower side of the injection head and the lower end of the inner cavity of the injector head. The fork-shaped design can ensure that the intraocular lens always moves within the fork groove, preventing the intraocular lens from moving upward during movement, thereby avoiding injury from being pinched between the upper side of the injection head and the upper end of the inner cavity of the injector head. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of an intraocular intraocular lens assisted implantation system provided by this utility model;

[0020] Figure 2 An exploded view of an intraocular intraocular lens-assisted implantation system provided by this utility model;

[0021] Figure 3 A schematic diagram of the main structure of an intraocular intraocular lens assisted implantation system provided by this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the hook one;

[0023] Figure 5 This is a schematic diagram of the assembly of the hook one;

[0024] Figure 6 This is a schematic diagram of the structure of the ball-holding device;

[0025] Figure 7 This is a diagram illustrating the assembly of the card ball;

[0026] Figure 8 This is a schematic diagram of the structure of the second hook;

[0027] Figure 9 This is a schematic diagram of the assembly of the second hook.

[0028] Figure 10 This is a schematic diagram of the structure of slot one;

[0029] Figure 11 This is an assembly diagram of slot one;

[0030] Figure 12 This is a schematic diagram of the second card slot.

[0031] Figure 13 This is a schematic diagram of the assembly of slot two.

[0032] In the picture:

[0033] 1. Injector head 101. Limiting surface 102. Stop surface one 103. Connecting mechanism 104. Front end of injector head 105. Rear end of injector head 106. Inner cavity 107. Hook one 108. Ball catcher 109. Hook two 110. Slot one 111. Slot two 2. Main body 201. Limiting groove 202. Stop surface two 203. Snap groove one 204. Snap groove two 205. Snap groove three 206. Avoidance groove 207. Anti-rotation groove 208. Stop pin groove 3. Push rod 301. Injector head 302. Injector stop groove 303. Anti-rotation structure 304. Upper side of injector head 305. Lower side of injector head 4. Stop pin 5. Intraocular lens. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments and accompanying drawings to help understand the content of the present invention.

[0035] like Figures 1-3 The figures shown are a schematic diagram, an exploded view, and a schematic diagram of the main structure of an intraocular intraocular lens (IOL) assisted implantation system provided by this utility model. The IOL assisted implantation system includes an inlet head 1, a main body 2, a push rod 3, a stop pin 4, and an IOL 5. The front end of the main body 2 is connected to the inlet head 1, the push rod 3 is inserted into the main body 2, and the IOL 5 is placed inside the inlet head 1.

[0036] The inner cavity 106 of the main body 2 is provided with an anti-rotation groove 207. The outer middle part of the main body 2 is provided with a stop pin groove 208. The front end of the main body 2 is provided with two symmetrical limiting grooves 201. The rear end of the limiting grooves 201 is provided with two symmetrical stop surfaces 202. The rear end of the stop surfaces 202 is provided with two symmetrical latching grooves 204. The rear end of the latching grooves 204 is provided with two symmetrical latching grooves 205. The lower end of the latching grooves 205 is provided with a latching groove 203. The rear end of the latching grooves 203 is provided with a clearance groove 206.

[0037] The front end of the push rod 3 is provided with a push head 301. The push head 301 has an upper push head 304 and a lower push head 305. The upper push head 304 and the lower push head 305 are fork-shaped. The push head 301 is a downward pressing type. The push head 301 always contacts and moves at the lower end of the inner cavity 106 of the inlet head 1, ensuring that there is no gap between the lower push head 305 and the lower end of the inner cavity 106 of the inlet head 1, thereby avoiding injury from being pinched between the lower push head 305 and the lower end of the inner cavity 106 of the inlet head 1. The fork-shaped design can ensure that the intraocular lens 5 always moves within the fork groove, preventing the intraocular lens 5 from moving upward during movement, thereby avoiding injury from being pinched between the upper push head 304 and the upper end of the inner cavity 106 of the inlet head 1. The rear end of the injection head 301 is provided with an injection stop groove 302, and the side of the injection stop groove 302 is provided with an anti-rotation structure 303. The anti-rotation structure 303 cooperates with the anti-rotation groove 207 to prevent the push rod 3 from rotating inside the main body 2 and ensure that the artificial lens 5 is not damaged.

[0038] The stop pin 4 is interference-fitted with the stop pin groove 208 to prevent it from falling off during use. The stop pin 4 passes through the push stop groove 302, which can restrict the rotation of the push rod 3 and restrict the left and right movement of the push rod 3. When the push rod 3 moves forward, the stop pin 4 and the front end of the stop pin groove 208 stop, ensuring the forward movement of the push rod 3 and preventing the push rod 3 from being pushed too far and injuring the eyes. When the push rod 3 moves backward, the stop pin 4 and the rear end of the stop pin groove 208 stop, preventing the push rod 3 from falling out of the main body 2.

[0039] The inlet head 1 has two symmetrical limiting surfaces 101 in the middle, which are connected to the limiting groove 201 to fix the inlet head 1 and prevent it from moving forward. The inlet head 1 also has two symmetrical stop surfaces 102 on its lower side, which are connected to the stop surface 202 to fix the inlet head 1 and prevent it from moving downward. A connecting mechanism 103 is also provided on the lower side of the inlet head 1, which is connected to the main body 2 to fix the inlet head 1 and prevent it from moving upward, ensuring smooth injection of the intraocular lens 5. The connecting mechanism 103 can be a hook 107, a ball 108, a hook 109, a groove 110, or a groove 111.

[0040] like Figures 4-5 The figures shown are structural schematic diagrams and assembly schematic diagrams of the first hook. The first hook 107 is connected to the first buckle groove 203 to fix the inlet head 1, prevent the inlet head 1 from moving upward, and ensure smooth injection of the artificial lens 5;

[0041] Loading method: The inlet head 1 moves downward as shown in direction ① in the figure below. When the first hook 107 enters the relief groove 206, the first stop surface 102 and the second stop surface 202 come into contact and stop, completing the movement in direction ①. Then the inlet head 1 continues to move forward as shown in direction ② in the figure. The first hook 107 engages with the first buckle groove 203, and the limiting surface 101 and the limiting groove 201 come into contact and stop, completing the movement in direction ②.

[0042] Disassembly method: Move the inlet head 1 backward as shown in direction ③ of the figure. The limiting surface 101 separates from the limiting groove 201, and the first hook 107 and the first buckle groove 203 open the buckle, completing the movement in direction ③. Then move the inlet head 1 upward as shown in direction ④ of the figure. The first stop surface 102 separates from the second stop surface 202, and then the first hook 107 passes through the relief groove 206, completing the movement in direction ④.

[0043] like Figures 6-7 The diagrams shown are a structural schematic of the intraocular lens 108 and its assembly schematic. The intraocular lens 108 is connected to the locking groove 203 to fix the inlet head 1, preventing the inlet head 1 from moving upward and ensuring smooth injection of the intraocular lens 5.

[0044] Loading method: The inlet head 1 moves downward as shown in direction ⑤ in the figure below. When the locking ball 108 enters the locking groove 203, the stop surface 102 and the stop surface 202 come into contact and stop, completing the movement in direction ⑤. At this time, the locking ball 108 engages with the locking groove 203, and the loading is completed.

[0045] Disassembly method: Move the inlet head 1 upward as shown in direction ⑥. When the inlet head 1 moves upward, since the ball 108 is inserted into the snap-fit ​​groove 203 with an interference fit, it is necessary to forcefully dislodge the ball 108 from the snap-fit ​​groove 203. The stop surface 102 and the stop surface 202 separate, completing the movement in direction ⑥. At this time, the disassembly is completed.

[0046] like Figures 8-9 The figures shown are structural schematic diagrams and assembly schematic diagrams of the second hook. The second hook 109 is connected to the first buckle groove 203 to fix the inlet head 1, prevent the inlet head 1 from moving upward, and ensure smooth injection of the artificial lens 5;

[0047] Loading method: The inlet head 1 moves downward as shown in direction ⑦ in the figure below. When the second hook 109 enters the relief groove 206, the stop surface 102 contacts the stop surface 202 and stops, completing the movement in direction ⑦. Then the inlet head 1 continues to move forward as shown in direction ⑧ in the figure. The second hook 109 engages with the first buckle groove 203 and stops when the limiting surface 101 contacts the limiting groove 201, completing the movement in direction ⑧.

[0048] Disassembly method: Move the inlet head 1 backward as shown in direction ⑨ in the figure. The limiting surface 101 separates from the limiting groove 201, and the second hook 109 opens the buckle with the first buckle groove 203, completing the movement in direction ⑨. Then move the inlet head 1 upward as shown in direction ⑩ in the figure. The first stop surface 102 separates from the second stop surface 202, and then the second hook 109 passes through the clearance groove 206, completing the movement in direction ⑩.

[0049] like Figures 10-11 The diagrams shown are a structural schematic of slot one and its assembly schematic. Slot one 110 is connected to slot two 204 to fix the inlet head 1, preventing the inlet head 1 from moving upward and ensuring smooth injection of the artificial lens 5.

[0050] Loading method: The inlet head 1 moves downward as shown in direction ⑪ in the figure below. When the first slot 110 enters the second buckle slot 204, the stop surface 102 contacts the stop surface 202 and stops, completing the movement in direction ⑪. Then the inlet head 1 continues to move forward as shown in direction ⑬ in the figure. The first slot 110 engages with the second buckle slot 204, and the limit surface 101 contacts the limit groove 201 and stops, completing the movement in direction ⑬.

[0051] Disassembly method: Move the inlet head 1 backward as shown in direction ⑭ in the figure. The limiting surface 101 separates from the limiting groove 201, and the first slot 110 separates from the second buckle groove 204 to open the buckle, completing the movement in direction ⑭. Then move the inlet head 1 upward as shown in direction ⑫ in the figure. The first stop surface 102 separates from the second stop surface 202, and then the first slot 110 passes through the second buckle groove 204, completing the movement in direction ⑫.

[0052] like Figures 12-13 The diagrams shown are structural schematics and assembly schematics of slot two. Slot two 111 is connected to buckle slot three 205 to fix the inlet head 1, prevent the inlet head 1 from moving upward, and ensure smooth injection of the artificial lens 5.

[0053] Loading method: The inlet head 1 moves downward as shown in direction ⑮ in the figure below. When the second slot 111 enters the third slot 205, the stop surface 102 contacts the stop surface 202 and stops, completing the movement in direction ⑮. Then the inlet head 1 continues to move forward as shown in direction ⑯ in the figure. The second slot 111 engages with the third slot 205, and the limiting surface 101 contacts the limiting groove 201 and stops, completing the movement in direction ⑯.

[0054] Disassembly method: Move the inlet head 1 backward as shown in direction ⑰ in the figure. The limiting surface 101 separates from the limiting groove 201, and the second slot 111 separates from the third buckle groove 205 to open the buckle, completing the movement in direction ⑰. Then move the inlet head 1 upward as shown in direction ⑱ in the figure. The first stop surface 102 separates from the second stop surface 202, and then the second slot 111 passes through the third buckle groove 205, completing the movement in direction ⑱.

[0055] Instructions for use: Use tweezers to pick up the intraocular lens 5 and place it into the inner cavity 106 of the rear end 105 of the implant head; load the assembled implant head 1 onto the implanter; push the push rod 3, and the injection head 301 contacts the intraocular lens 5, driving the intraocular lens 5 forward in the inner cavity 106 until the intraocular lens 5 is pushed out from the front end 104 of the implant head, and the intraocular lens 5 is successfully implanted into the human eye, completing the injection.

[0056] The inlet head 1 of this utility model is flat and does not require folding, making it simple to load the intraocular lens 5 and avoiding potential risks. When used in conjunction with a reusable intraocular lens injector, multiple inlet heads 1 can be adapted to the same reusable intraocular lens injector, which can reduce costs and increase market competitiveness. Moreover, it is easy to assemble and disassemble and can be used for both hydrophobic and hydrophilic intraocular lenses.

[0057] This article uses specific examples to illustrate the inventive concept in detail. The description of the above embodiments is only for the purpose of helping to understand the core idea of ​​this utility model. It should be noted that any obvious modifications, equivalent substitutions or other improvements made by those skilled in the art without departing from the inventive concept should be included within the protection scope of this utility model.

Claims

1. An intraocular intraocular lens-assisted implantation system, characterized in that, It includes an inlet head, a main body, a push rod, a stop pin, and an intraocular lens. The front end of the main body is connected to the inlet head, the push rod is inserted into the main body, and the intraocular lens is placed inside the inlet head. The main body has an anti-rotation groove in its inner cavity, a stop pin groove in the middle of the outer side of the main body, a symmetrical limiting groove on both sides at the front end of the main body, a symmetrical stop surface two at the rear end of the limiting groove, a symmetrical buckling groove two at the rear end of the stop surface two, a symmetrical buckling groove three at the rear end of the buckling groove two, a buckling groove one at the lower end of the buckling groove three, and a clearance groove at the rear end of the buckling groove one. The front end of the push rod is provided with a push head, the push head is provided with an upper part of the push head and a lower part of the push head, the upper part of the push head and the lower part of the push head are fork-shaped, the push head is a downward type, the push head always contacts and moves at the lower end of the inner cavity of the inlet head, the rear end of the push head is provided with a push stop groove, the side of the push stop groove is provided with an anti-rotation structure, the anti-rotation structure cooperates with the anti-rotation groove; The stop pin and the stop pin groove are interference fit. The stop pin passes through the push rod stop groove to restrict the rotation and left and right movement of the push rod. When the push rod moves forward, the stop pin stops at the front end of the stop pin groove to ensure the push rod moves forward. When the push rod moves backward, the stop pin stops at the rear end of the stop pin groove. The inlet head has two symmetrical limiting surfaces in the middle, which are connected to the limiting groove to fix the inlet head. The inlet head has two symmetrical stop surfaces on the lower side, which are connected to the stop surface to fix the inlet head. The inlet head also has a connecting mechanism on the lower side, which is connected to the main body to fix the inlet head.

2. The intraocular intraocular lens-assisted implantation system according to claim 1, characterized in that, The connecting mechanism is a hook, which is connected to a buckle groove to fix the guide head.

3. The intraocular intraocular lens-assisted implantation system according to claim 2, characterized in that, The connecting mechanism is a ball-locking mechanism, which is connected to a snap-fit ​​groove to fix the guide head.

4. The intraocular intraocular lens-assisted implantation system according to claim 3, characterized in that, The connecting mechanism is a second hook, which is connected to the first buckle groove to fix the guide head.

5. The intraocular intraocular lens-assisted implantation system according to claim 4, characterized in that, The connecting mechanism is a slot one, which is connected to a buckle slot two to fix the guide head.

6. The intraocular intraocular lens-assisted implantation system according to claim 5, characterized in that, The connecting mechanism is slot two, which is connected to buckle slot three to fix the guide head.

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