An intraocular lens pre-installed injection system

Abstract

The present invention discloses an artificial lens pre-installed injection system, including a main body, the front end of the main body is connected to the introduction head, and the tail end is connected to the rotating handle. The main body is provided with an artificial lens, a lens pressing piece, a lens pressing piece buckle, an injection needle and an injection rod in sequence from front to back. The crystal pressing piece buckle is fixedly connected to the crystal pressing piece buckle slot of the main body. A rotating column is provided inside the rotating handle, and an injection rod buckle is provided at the front end of the rotating column. The injection rod buckle is connected to the rotating handle slot at the tail end of the injection rod. A long slot is provided on the inner side of the rotating handle, and the long slot is connected to the anti-rotation handle buckle on the main body. A spiral external thread is provided on the outer side of the injection rod, and the spiral external thread is meshed with the spiral internal thread on the inner side of the main body. The present invention is convenient to process, assemble and operate, not only can save thrust, but also has a more uniform injection speed, prevents damage to the artificial lens and harm to the patient, and has high safety. In addition, it also reduces the risk of contamination of the artificial lens and has broad application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial lenses, and in particular to a pre-assembled artificial lens push injection system. Background Art

[0002] Intraocular lenses are currently the most effective method for correcting aphakic refraction. In the existing technology, tweezers are used to place the intraocular lens into an intraocular lens implantation device, which is then folded using a folding device. The intraocular lens is then implanted into the eye through the implantation device itself. This is a complex implantation process that requires trained nurses to operate, is highly specialized, and is prone to problems. Furthermore, when the intraocular lens is operated in the operating room, using tweezers to hold the intraocular lens can damage it, increasing the risk of contamination and the probability of infection, leading to a slower recovery. Furthermore, the injection speed of the push-type injector is uneven, which can easily cause damage to the patient. Therefore, there is an urgent need to develop a pre-installed intraocular lens injection system to address the above-mentioned technical issues.

[0003] In view of this, the present invention is proposed. Summary of the Invention

[0004] The present invention aims to provide a pre-assembled intraocular lens injection system with an ingenious design and convenient processing, assembly, and operation. This system not only reduces thrust but also provides a more uniform injection speed, preventing damage to the intraocular lens and harm to the patient, thereby enhancing safety. Furthermore, it reduces the risk of intraocular lens contamination, possesses broad application prospects, and is conducive to widespread application.

[0005] In order to achieve the above-mentioned purpose, the present invention provides an artificial lens pre-installed injection system, including a main body, the front end of the main body is connected to the introduction head, and the tail end is connected to the rotating handle. The interior of the main body is provided with an artificial lens, a lens pressing piece, a lens pressing piece buckle, an injection needle and an injection rod in sequence from front to back. The lens pressing piece is a push-pull type, and a crystal pressing piece anti-movement groove is provided on the inner side, which is matched with the crystal pressing piece anti-movement ball 1 on the main body and the crystal pressing piece anti-movement ball 2 on the crystal pressing piece buckle. When the crystal pressing piece moves backward and the crystal pressing piece anti-movement groove falls into the crystal pressing piece anti-movement ball 1 and the crystal pressing piece anti-movement ball 2, the crystal pressing piece can be temporarily fixed to prevent damage to the lens by misoperation. The crystal pressing piece buckle is fixedly connected to the crystal pressing piece buckle slot of the main body. The injection needle is provided with an anti-rotation platform, which is matched with the anti-rotation groove 1 of the main body and the anti-rotation groove 2 of the crystal pressing piece buckle. The injection needle can The push rod can be moved back and forth but cannot be rotated to prevent the rotation of the push needle from affecting the injection effect. The tail end of the push needle is provided with a push rod connecting buckle, and the push rod connecting buckle is connected to the push needle connecting slot at the front end of the push rod. A rotating column is provided inside the rotating handle, and a push rod buckle is provided at the front end of the rotating column. The push rod buckle is connected to the rotating handle slot at the tail end of the push rod and cannot be rotated. A long slot is provided on the inside of the rotating handle, and the long slot is connected to the anti-rotation handle buckle on the main body. The rotating handle can move back and forth and can also rotate freely about the axis of the main body. A spiral external thread is provided on the outside of the push rod, and the spiral external thread is meshed with the spiral internal thread on the inside of the main body. The push rod is driven by rotating the rotating handle, and the push rod fits with the main body to push the push needle and the lens pressing tablet, thereby realizing the injection of the artificial lens in the lens pre-installed part of the main body.

[0006] Preferably, the front end of the main body is provided with an introduction head buckle connected to the introduction head, the tail end is provided with an anti-rotation handle buckle connected to the rotating handle, and the inner side is provided with a lens pre-loading part, a lens pressing piece buckle slot, a lens pressing piece anti-movement ball, an anti-rotation groove, a stop surface, and a spiral internal thread engaged with the injection rod, and an artificial lens is placed in the lens pre-loading part.

[0007] Preferably, an anti-slip groove is provided on the outer side of the rotating handle to prevent the doctor from slipping during operation and affecting the surgical effect.

[0008] Preferably, a window is provided at the tail end of the rotating handle to facilitate observation of the movement position of the injection rod during assembly and use.

[0009] Preferably, a second stop surface is provided at the front end of the push rod. When the second stop surface contacts the first stop surface of the main body, the push rod stops to prevent the push needle from being pushed out too long and damaging the human eye.

[0010] Preferably, an asymmetric inner cavity is provided inside the introduction head, which can fold the sheet-like intraocular lens into a smaller ball and push it into the eye. A lens pressing tongue deformation position and a guide groove are also provided inside the introduction head.

[0011] Preferably, the tail end of the introduction head is provided with a main body slot and an anti-foolproof platform. The main body slot is used to be connected with the introduction head buckle of the main body, and the anti-foolproof platform cooperates with the anti-foolproof slot of the crystal pressing buckle, which can facilitate installation and prevent reverse installation, thereby improving production efficiency and reducing labor costs.

[0012] Preferably, a sliding handle is provided on the outer side of the lens pressing plate, which has a large contact area and is convenient for the doctor to operate, and a stop block is provided at the front end of the sliding handle.

[0013] Preferably, the front end of the lens pressing buckle is provided with an anti-mistake groove and a second stop block. The anti-mistake groove can prevent the guide head from being installed upside down, affecting the lens injection, and can also improve the assembly efficiency. The second stop block cooperates with the first lens pressing stop block. When the lens pressing tablet is pushed by hand and the two sides are in contact, the artificial lens is blocked from continuing to move forward, preventing the lens pressing tablet from being over-pushed and damaging the artificial lens. The inner side of the lens pressing buckle is provided with a second lens pressing anti-movement ball.

[0014] Preferably, the tail end of the crystal pressing plate buckle is provided with a buckle, an anti-rotation groove and an anti-backward movement structure. The anti-backward movement structure is used to prevent the crystal pressing plate buckle from moving backward when assembling the introduction head after the main body and the crystal pressing plate buckle, resulting in the introduction head being unable to be installed or not installed in place.

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

[0016] 1. The present invention uses a pre-assembled design, which not only eliminates the tedious task of inserting the lens, reducing the doctor's workload, but also reduces the probability of the lens being crushed during insertion into the instrument and leaking into the patient's body. Furthermore, the lens is pre-assembled in a sterile factory workshop, reducing the risk of contamination, minimizing the chance of infection, and accelerating patient recovery.

[0017] 2. The present invention adopts a rotary push injection, which not only saves thrust, but also makes the push injection speed more uniform, controls the crystal push injection speed, and causes less damage to the patient.

[0018] 3. The crystal pressing piece of the present invention is manually pushed and pulled, and is provided with a crystal pressing piece buckle, which is convenient for injection molding and simple to assemble. The main body is provided with a crystal pressing piece anti-movement ball 1, and the crystal pressing piece buckle is provided with a crystal pressing piece anti-movement ball 2, so that the crystal pressing piece can be temporarily fixed to prevent misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a pre-installed intraocular lens injection system provided by the present invention;

[0020] Figure 2 A cross-sectional view of a pre-installed intraocular lens injection system provided by the present invention;

[0021] Figure 3 An exploded diagram of a pre-installed intraocular lens injection system provided by the present invention;

[0022] Figure 4 A schematic diagram of the structure of a rotary handle of a pre-installed intraocular lens injection system provided by the present invention;

[0023] Figure 5 A schematic diagram of the main structure of a pre-installed intraocular lens injection system provided by the present invention;

[0024] Figure 6 A schematic structural diagram of an introduction head of a pre-installed intraocular lens injection system provided by the present invention;

[0025] Figure 7 A schematic diagram of the lens pressing and buckling structure of a pre-assembled intraocular lens push-in system provided by the present invention;

[0026] Figure 8 A schematic diagram of the structure of an injection rod of a pre-installed intraocular lens injection system provided by the present invention;

[0027] Figure 9 A schematic diagram of the structure of an injection needle of a pre-installed intraocular lens injection system provided by the present invention;

[0028] Figure 10 This is a schematic diagram of the lens tablet pressing structure of the intraocular lens pre-installed push injection system provided by the present invention.

[0029] In the picture:

[0030] 1. Rotating handle 101. Injection rod buckle 102. Rotating column 103. Long slot 104. Window 105. Anti-slip groove 2. Main body 201. Anti-rotation handle buckle 202. Lens pre-installation unit 203. Introducing head buckle 204. Anti-rotation groove 1 205. Lens pressing buckle slot 206. Stop surface 1 207. Internal spiral thread 208. Lens pressing anti-movement ball 1 3. Introducing head 301. Main body slot 302. Anti-fouling platform 303. Introducing head asymmetric cavity 304. Lens pressing tongue deformation position 3 05. Guide groove 4. Lens pressing piece buckle 401. Anti-misalignment groove 402. Buckle 403. Stop block 2 404. Lens pressing piece anti-movement ball 2 405. Anti-backward movement structure 406. Anti-rotation groove 2 5. Injection rod 501. Rotating handle slot 502. Injection needle connecting slot 503. Helical external thread 504. Stop surface 2 6. Injection needle 601. Anti-rotation platform 602. Injection rod connecting buckle 7. Lens pressing piece 701. Sliding handle 702. Stop block 1 703. Lens pressing piece anti-movement groove 8. Intraocular lens DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to specific embodiments and accompanying drawings to facilitate understanding of the present invention.

[0032] like Figure 1-3 As shown, they are respectively a structural schematic diagram, a cross-sectional diagram and an exploded diagram of an intraocular lens pre-installed injection system provided by the present invention; the intraocular lens pre-installed injection system includes a main body 2, the front end of the main body 2 is connected to the introduction head 3, and the rear end is connected to the rotating handle 1, and the interior of the main body 2 is provided with an intraocular lens 8, a lens pressing plate 7, a lens pressing plate buckle 4, an injection needle 6 and an injection rod 5 from front to back. The lens pressing plate 7 is a push-pull type, and a crystal pressing plate anti-movement groove 703 is provided on the inner side, which cooperates with the crystal pressing plate anti-movement ball 1 208 on the main body 2 and the crystal pressing plate anti-movement ball 2 404 on the crystal pressing plate buckle 4. When the crystal pressing plate 7 moves backward and the crystal pressing plate anti-movement groove 703 falls into the crystal pressing plate anti-movement ball 1 208 and the crystal pressing plate anti-movement ball 2 404, the crystal pressing plate 7 can be temporarily fixed to prevent the lens from being damaged by misoperation. The crystal pressing plate buckle 4 is fixedly connected to the crystal pressing plate buckle slot 205 of the main body 2. As shown Figure 9The figure shows a schematic diagram of the structure of an injection needle of an intraocular lens pre-installed injection system provided by the present invention. The injection needle 6 is provided with an anti-rotation platform 601, which is connected with the anti-rotation groove 1 204 of the main body 2 and the anti-rotation groove 2 406 of the lens pressing buckle 4. The injection needle 6 can move forward and backward, but cannot rotate, so as to prevent the injection needle 6 from rotating and affecting the injection effect. The tail end of the injection needle 6 is provided with an injection rod connecting buckle 602, and the injection rod connecting buckle 602 is connected to the injection needle connecting slot 502 at the front end of the injection rod 5. The rotating handle 1 is provided with a rotating column 102 inside, and the front end of the rotating column 102 is provided with an injection rod buckle 101, and the injection rod buckle 101 is connected to the rotating handle slot 50 at the tail end of the injection rod 5. 1 is connected and cannot be rotated. A long slot 103 is provided on the inner side of the rotating handle 1. The long slot 103 is connected to the anti-rotation handle buckle 201 on the main body 2. The rotating handle 1 can move back and forth and can also rotate freely around the axis of the main body 2. A spiral external thread 503 is provided on the outer side of the injection rod 5. The spiral external thread 503 is engaged with the spiral internal thread 207 on the inner side of the main body 2. The injection rod 5 is driven by rotating the rotating handle 1. The injection rod 5 is fitted with the main body 2 to push the injection needle 6 and the lens pressing piece 7, thereby realizing the injection of the artificial lens 8 in the lens pre-installed part 202 of the main body 2.

[0033] like Figure 5 Figure 2 is a schematic diagram of the main structure of an intraocular lens pre-installed injection system provided by the present invention. The front end of the main body 2 is provided with an inserter head buckle 203 connected to the inserter head 3, and the rear end is provided with an anti-rotation handle buckle 201 connected to the rotation handle 1. Inside, from front to back, are arranged a lens pre-installed portion 202, a lens pressing plate buckle slot 205, a lens pressing plate anti-movement ball 208, an anti-rotation groove 204, a stop surface 206, and a spiral internal thread 207 that engages with the injection rod 5. An intraocular lens 8 is placed within the lens pre-installed portion 202.

[0034] like Figure 4 Figure 1 is a schematic diagram of the rotary handle structure of a pre-installed intraocular lens injection system provided by the present invention. The outer side of the rotary handle 1 is provided with an anti-slip groove 105 to prevent slippage during operation and affect the surgical effect. A window 104 is provided at the rear end of the rotary handle 1 to facilitate observation of the movement position of the injection rod 5 during assembly and use.

[0035] like Figure 8 FIG. 1 is a schematic diagram of the push rod structure of a pre-installed intraocular lens push system according to the present invention. The front end of the push rod 5 is provided with a second stop surface 504. When the second stop surface 504 contacts the first stop surface 206 of the main body 2, the push rod 5 stops, preventing the push needle 6 from being pushed out too far and damaging the eye.

[0036] like Figure 6The figure shows a schematic diagram of the structure of an introduction head of an intraocular lens pre-installed injection system provided by the present invention. The introduction head 3 is provided with an asymmetric inner cavity 303 of the introduction head, which can fold the sheet-like intraocular lens 8 into a smaller ball and push it into the eye. The introduction head 3 is also provided with a lens pressing tongue deformation position 304 and a guide groove 305. The tail end of the introduction head 3 is provided with a main body slot 301 and an anti-fool platform 302. The main body slot 301 is used to connect with the introduction head buckle 203 of the main body 2. The anti-fool platform 302 cooperates with the anti-fool groove 401 of the lens pressing buckle 4, which can facilitate installation and prevent reverse installation, thereby improving production efficiency and reducing labor costs.

[0037] like Figure 10 FIG. 1 is a schematic diagram of the lens pressing structure of a pre-assembled intraocular lens injection system provided by the present invention. A sliding handle 701 is provided on the outside of the lens pressing plate 7, which has a large contact area and is convenient for the doctor to operate. A stop block 702 is provided at the front end of the sliding handle 701.

[0038] like Figure 7 The figure shows a schematic diagram of the lens compression clip structure of an intraocular lens pre-installed injection system provided by the present invention. The front end of the lens compression clip 4 is provided with an anti-mistake groove 401 and a second stop block 403. The anti-mistake groove 401 can prevent the introduction head 3 from being installed upside down, affecting the lens injection, and can also improve the assembly efficiency. The second stop block 403 cooperates with the first stop block 702 of the lens compression clip 7. When the lens compression clip 7 is pushed by a hand and the two sides are in contact, the intraocular lens 8 is blocked from moving forward, preventing the lens compression clip 7 from being over-pushed and damaging the intraocular lens 8. The inner side of the lens compression clip 4 is provided with a second lens compression clip anti-movement ball 404. The tail end of the lens compression clip 4 is provided with a clip 402, an anti-rotation groove 406 and an anti-backward movement structure 405. The anti-backward movement structure 405 is used to prevent the lens compression clip 4 from moving backward when the introduction head 3 is assembled after the main body 2 and the lens compression clip 7 are buckled, resulting in the introduction head 3 being unable to be installed or not installed in place.

[0039] The assembly process of the present invention comprises the following steps:

[0040] ② The push rod 5 and the push needle 6 are connected by a snap and can rotate;

[0041] ②The above components are connected to the rotating handle 1 by snaps and cannot be rotated;

[0042] ③The above components are inserted into the main body 2;

[0043] ④ The crystal pressing piece 7 is placed into the main body 2;

[0044] ⑤ The crystal pressing plate buckle 4 is connected to the main body 2 by a buckle;

[0045] ⑥ The intraocular lens 8 is placed in the lens pre-installed portion 202 of the main body 2, and placed upside down in an S position;

[0046] ⑦Insert the guide head 3 into the main body 2 to complete the assembly.

[0047] The operating method of the present invention comprises the following steps:

[0048] ①Inject the viscoelastic agent into the introduction head 3 through the injection hole of the introduction head;

[0049] ② Manually push the lens pressing piece 7 to pre-press and pre-push the intraocular lens 8;

[0050] ③ Rotate the rotary handle 1 to move the secondary components (rotating handle 1, injection rod 5, injection needle 6) forward;

[0051] ④ Continue to rotate the rotary handle 1, the injection needle 6 continues to move forward, and starts to push the artificial lens 8. The artificial lens 8 passes through the introduction head 3, and the operation is completed.

[0052] The present invention adopts a pre-installed method, which not only saves the doctor the tedious work of loading the lens and reduces the doctor's workload, but also reduces the probability of the lens being crushed when it is loaded into the instrument and flowing into the patient's body. In addition, the crystal is pre-installed in the sterile workshop of the factory, which can reduce the risk of contamination, reduce the chance of infection, and the patient recovers quickly. The present invention adopts a rotary push injection, which not only saves thrust, but also makes the push injection speed more uniform, controls the crystal push injection speed, and causes less damage to the patient. The crystal pressing tablet 7 of the present invention adopts manual push and pull, and is provided with a crystal pressing tablet buckle 4, which is convenient for injection molding and simple to assemble. The main body 2 is provided with a crystal pressing tablet anti-movement ball 208, and the crystal pressing tablet buckle 4 is provided with a crystal pressing tablet anti-movement ball 404, so that the crystal pressing tablet 7 can be temporarily fixed to prevent misoperation.

[0053] This document uses specific examples to illustrate the inventive concept in detail. The above embodiments are only intended to help understand the core concept of the present invention. It should be noted that any obvious modifications, equivalent substitutions, or other improvements made by a person skilled in the art without departing from the inventive concept should be included within the scope of protection of the present invention.

Claims

1. A pre-installed intraocular lens injection system, characterized in that: It includes a main body, the front end of the main body is connected to the introduction head, and the rear end is connected to the rotating handle. The interior of the main body is provided with an artificial lens, a lens pressing piece, a lens pressing piece buckle, an injection needle and an injection rod in sequence from front to back. The lens pressing piece is a push-pull type, and a crystal pressing piece anti-movement groove is provided on the inner side, which is matched and connected with the crystal pressing piece anti-movement ball 1 on the main body and the crystal pressing piece anti-movement ball 2 on the crystal pressing piece buckle. When the crystal pressing piece moves backward and the crystal pressing piece anti-movement groove falls into the crystal pressing piece anti-movement ball 1 and the crystal pressing piece anti-movement ball 2, the crystal pressing piece can be temporarily fixed to prevent damage to the lens by misoperation. The crystal pressing piece buckle is fixedly connected to the crystal pressing piece buckle slot of the main body. The injection needle is provided with an anti-rotation platform, which is matched and connected with the anti-rotation groove 1 of the main body and the anti-rotation groove 2 of the crystal pressing piece buckle. The injection needle can move back and forth, but The push rod can not be rotated, and the tail end of the push needle is provided with a push rod connecting buckle, and the push rod connecting buckle is connected to the push needle connecting slot at the front end of the push rod. A rotating column is provided inside the rotating handle, and a push rod buckle is provided at the front end of the rotating column. The push rod buckle is connected to the rotating handle slot at the tail end of the push rod and cannot be rotated. A long slot is provided on the inside of the rotating handle, and the long slot is connected to the anti-rotation handle buckle on the main body. The rotating handle can move back and forth and can also rotate freely about the axis of the main body. A spiral external thread is provided on the outside of the push rod, and the spiral external thread is meshed with the spiral internal thread on the inside of the main body. The push rod is driven by rotating the rotating handle, and the push rod fits with the main body to push the push needle and the lens pressing piece, thereby realizing the injection of the artificial lens in the lens pre-installed part of the main body.

2. The pre-installed intraocular lens injection system according to claim 1, characterized in that: The front end of the main body is provided with an introduction head buckle connected to the introduction head, and the tail end is provided with an anti-rotation handle buckle connected to the rotating handle. The inner side is provided with a lens pre-installed part, a lens pressing piece buckle slot, a lens pressing piece anti-movement ball, an anti-rotation groove, a stop surface, and a spiral internal thread engaged with the injection rod. An artificial lens is placed in the lens pre-installed part.

3. The pre-installed intraocular lens injection system according to claim 2, characterized in that: An anti-slip groove is provided on the outer side of the rotating handle.

4. The pre-installed intraocular lens injection system according to claim 3, characterized in that: The tail end of the rotating handle is provided with a window for observing the moving position of the injection rod during assembly and use.

5. The pre-installed intraocular lens injection system according to claim 4, characterized in that: The front end of the push rod is provided with a second stop surface. When the second stop surface contacts the first stop surface of the main body, the push rod stops to prevent the push needle from being pushed out too long and damaging the human eye.

6. The pre-installed intraocular lens injection system according to claim 5, characterized in that: An asymmetric inner cavity is provided inside the introduction head, which can fold the sheet-like intraocular lens into a smaller ball and push it into the eye. A lens pressing tongue deformation position and a guide groove are also provided inside the introduction head.

7. The pre-installed intraocular lens injection system according to claim 6, characterized in that: The tail end of the introduction head is provided with a main body slot and an anti-fool platform. The main body slot is used to be connected with the introduction head buckle of the main body. The anti-fool platform cooperates with the anti-fool slot of the crystal pressing buckle to facilitate installation and prevent reverse installation.

8. The pre-installed intraocular lens injection system according to claim 7, characterized in that: A sliding handle is provided on the outer side of the crystal pressing plate for convenient operation by the doctor, and a stop block is provided at the front end of the sliding handle.

9. The pre-installed intraocular lens injection system according to claim 8, characterized in that: The front end of the lens pressing buckle is provided with an anti-mistake groove and a second stop block. The anti-mistake groove can prevent the guide head from being installed upside down, affecting the lens injection, and can also improve the assembly efficiency. The second stop block cooperates with the first lens pressing stop block. When the lens pressing tablet is pushed by hand and the two sides are in contact, the artificial lens is blocked from continuing to move forward, preventing the lens pressing tablet from being over-pushed and damaging the artificial lens. The inner side of the lens pressing buckle is provided with a second lens pressing anti-movement ball.

10. The intraocular lens pre-installed injection system according to claim 9, characterized in that: The tail end of the crystal pressing plate buckle is provided with a buckle, an anti-rotation groove and an anti-backward movement structure. The anti-backward movement structure is used to prevent the crystal pressing plate buckle from moving backward when assembling the introduction head after the main body and the crystal pressing plate are buckled, causing the introduction head to be unable to be installed or installed in place.

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