A pre-installed rotary pusher for intraocular lens

Abstract

The present invention discloses an artificial lens preloaded rotary pusher, the tail of the main body is connected to the rotary handle, the front end of the main body is connected to the introduction head, the inside of the main body is provided with an internal spiral part, an injection rod, an injection needle, and a lens pressing tablet in sequence from back to front, the rotary handle is connected to the injection rod through the internal spiral part, the injection rod is connected to the injection needle, the injection needle is connected to the lens pressing tablet, the front end of the main body is provided with a lens preloading part, the lens preloading part is preloaded with an artificial lens, the lens pressing tablet is provided with a stop block, the rotary handle rotates to drive the injection needle and the lens pressing tablet to move forward together, when the stop block of the lens pressing tablet contacts the stop surface of the main body, the crystal pressing tablet no longer moves forward, the rotary handle continues to rotate, the injection needle is separated from the lens pressing tablet, and the artificial lens is pushed into the eye. The present invention has a simple structure and ingenious design, saves thrust, has a uniform injection speed, and causes little damage to the patient. The lens is preloaded in the sterile workshop of the factory, which can reduce the risk of contamination and save the doctor the tedious work of loading the lens.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial lenses, and in particular to an artificial lens pre-assembled rotary injector. Background Art

[0002] Intraocular lenses are currently the most effective method for correcting aphakic refraction. In the prior art, tweezers are used to place the intraocular lens into the intraocular lens implantation device, a folding device is used to fold the intraocular lens, and the intraocular lens is implanted into the eye through the implantation device body. The implantation process is complicated and requires the operation of trained nurses, which is relatively professional. In addition, the injection speed is uneven, which can easily cause damage to the patient. In addition, when using tweezers to clamp the intraocular lens, it will not only cause damage to the intraocular lens, but also increase the risk of contamination of the intraocular lens, increase the probability of infection in the patient, and cause the patient to recover more slowly. Therefore, there is an urgent need to develop a pre-installed rotary injector for intraocular lenses to solve the above technical problems.

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

[0004] The purpose of the present invention is to provide an intraocular lens pre-installed rotary pusher with a simple structure, ingenious design, saving thrust, uniform push speed, and little damage to the patient. The lens is pre-installed in a sterile workshop of the factory, which can reduce the risk of contamination and save the doctor the tedious work of installing the lens. It has broad application prospects and is conducive to popularization and application.

[0005] In order to achieve the above-mentioned purpose, the present invention provides an artificial lens pre-loaded rotary pusher, including a main body, a rotating handle, an introduction head, an internal spiral member, a push rod, a push needle, a lens pressing tablet and an artificial lens, the tail of the main body is connected to the rotating handle, the front end of the main body is connected to the introduction head, the interior of the main body is provided with an internal spiral member, a push rod, a push needle, and a lens pressing tablet from back to front, the rotating handle is connected to the push rod through the internal spiral member, the push rod is connected to the push needle, the push needle is connected to the lens pressing tablet, the front end of the main body is provided with a lens pre-loading part, the lens pre-loading part is pre-loaded with an artificial lens, and the lens pressing tablet is provided with a stop block, and the rotating handle rotates to drive the push needle and the lens pressing tablet to move forward together. When the stop block of the lens pressing tablet contacts the stop surface of the main body, the lens pressing tablet no longer moves forward, the rotating handle continues to rotate, the push needle is separated from the lens pressing tablet, and the artificial lens is pushed into the eye.

[0006] Preferably, the main body is provided with a rotating handle buckle, and the rotating handle is provided with a main body slot. The main body and the rotating handle are connected through the rotating handle buckle and the main body slot. The rotating handle can rotate freely about the axis of the main body and cannot move forward and backward. The rotating handle is provided with an anti-sway platform, which cooperates with the anti-sway slot of the main body to prevent the rotating handle from shaking during rotation.

[0007] Preferably, the main body is provided with an introduction head buckle, and the introduction head is provided with a main body slot 2. The main body and the introduction head are connected through the introduction head buckle and the main body slot 2. The introduction head is provided with an anti-foolproof platform, which cooperates with the anti-foolproof slot of the main body, which can facilitate installation and prevent reverse installation, thereby improving production efficiency and reducing labor costs. A guide groove 1 is provided in the introduction head for guiding the lens pre-installed part for easy installation. The introduction head is provided with an automatic folding inner cavity, which can fold the sheet-like artificial lens into a smaller ball and push it into the eye.

[0008] Preferably, the inner spiral part is connected to the rotating handle, and a spiral column is provided in the rotating handle. The double thread 1 on the outer side of the spiral column is threadedly connected to the double thread 2 on the inner wall of the inner spiral part. The outside of the rotating handle is provided with an anti-slip groove to prevent the doctor from slipping during operation and affecting the surgical effect. The inner spiral part can move back and forth but cannot rotate. The inner spiral part is provided with an anti-rotation platform, which cooperates with the anti-rotation groove of the main body to prevent the inner spiral part from rotating. The inner spiral part is provided with two symmetrical guide platforms, which can facilitate installation and prevent reverse installation, thereby improving production efficiency and reducing costs.

[0009] Preferably, the inner spiral part is provided with a push rod buckle 1, and the push rod is provided with an inner spiral part slot 501. The inner spiral part and the push rod are connected with the inner spiral part slot through the push rod buckle 1 and the inner spiral part slot and cannot rotate. The push rod is provided with a guide groove 2, which cooperates with the guide platform of the inner spiral part to guide the push rod buckle 1 and the inner spiral part slot to complete the engagement, which can facilitate installation and prevent reverse installation, thereby improving production efficiency and reducing costs.

[0010] Preferably, the push rod is provided with a push needle slot, and the push needle is provided with a push rod buckle 2. The push rod and the push needle are connected through the push needle slot and the push rod buckle 2. The push rod is provided with a push rod anti-rotation groove, which cooperates with the push rod anti-rotation platform of the push needle to prevent the push needle from rotating and affecting the injection effect. A rotating inner cavity of a rotating handle is provided in the push rod, and the spiral column can rotate freely and move back and forth in the rotating inner cavity of the rotating handle. The rotating handle can move back and forth in the rotating inner cavity of the rotating handle.

[0011] Preferably, the push needle is provided with a crystal pressing plate slot, the crystal pressing plate is provided with a push needle buckle, the push needle and the crystal pressing plate are connected through the crystal pressing plate slot and the push needle buckle, the sliding groove of the crystal pressing plate and the crystal pressing plate moving groove of the push needle cooperate with each other, so that the crystal pressing plate can move freely on the push needle and will not fall off, the front end of the crystal pressing plate is provided with a crystal pressing tongue, a limit block is provided on the center line, and a crystal pressing tongue deformation position is provided in the introduction head.

[0012] The present invention provides an intraocular lens pre-installed rotary pusher, which has the following beneficial effects.

[0013] 1. The present invention is pre-installed, and the lens is pre-installed in the sterile workshop of the factory, which not only reduces the risk of contamination, reduces the chance of infection, and speeds up the patient's recovery, but also saves the doctor from the tedious work of inserting the lens, reduces the doctor's workload, and also reduces the probability of the lens being crushed when it is installed into the instrument and flowing into the patient's body.

[0014] 2. The present invention adopts a rotary push injection, which not only saves thrust, but also has a uniform push injection speed, controls the crystal push injection speed, and causes less damage to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a pre-installed rotary push injector for intraocular lenses provided by the present invention;

[0016] Figure 2 A cross-sectional view of a pre-installed rotary injector for an intraocular lens provided by the present invention;

[0017] Figure 3 An exploded view of a pre-assembled rotary injector for intraocular lenses provided by the present invention;

[0018] Figure 4 A schematic diagram of the structure of a rotary handle of a pre-installed rotary injector for an intraocular lens provided by the present invention;

[0019] Figure 5 A schematic diagram of the main structure of a pre-installed rotary push injector for intraocular lens provided by the present invention;

[0020] Figure 6 A schematic structural diagram of an introduction head of a pre-installed rotary injector for an intraocular lens provided by the present invention;

[0021] Figure 7 A schematic diagram of the structure of an inner spiral component of an intraocular lens pre-installed rotary injector provided by the present invention;

[0022] Figure 8 A schematic diagram of the structure of an injection rod of a pre-installed rotary injection device for an intraocular lens provided by the present invention;

[0023] Figure 9 A schematic diagram of the structure of an injection needle of a pre-installed rotary injection device for an intraocular lens provided by the present invention;

[0024] Figure 10 This is a schematic diagram of the lens tablet pressing structure of an intraocular lens pre-assembled rotary pusher provided by the present invention.

[0025] In the picture:

[0026] 1. Rotating handle 101. Anti-slip groove 102. Main body slot 103. Screw column 104. Double thread 105. Anti-sway platform 2. Main body 201. Anti-sway groove 202. Rotating handle buckle 203. Crystal pre-installation part 204. Guide head buckle 205. Anti-slip groove 206. Anti-rotation groove 207. Stop surface 3. Guide head 301. Main body slot 302. Anti-slip platform 303. Automatic folding cavity 304. Crystal pressing tongue deformation position 305. Guide groove 1 4. Inner screw 401. Anti-rotation platform 4 02. Injection rod buckle 403. Double thread 404. Guide platform 5. Injection rod 501. Inner screw groove 502. Injection rod anti-rotation groove 503. Injection needle groove 504. Guide groove 505. Rotating handle to rotate the inner cavity 6. Injection needle 601. Lens pressing tablet groove 602. Injection rod anti-rotation platform 603. Injection rod buckle 604. Lens pressing tablet moving groove 7. Lens pressing tablet 701. Lens pressing tongue 702. Sliding groove 703. Injection needle buckle 704. Stop block 705. Limit block 8. Intraocular lens DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to specific embodiments and accompanying drawings to facilitate understanding of the present invention.

[0028] like Figure 1-3 The figures are respectively a schematic diagram of the overall structure of a pre-installed rotary pusher for intraocular lens provided by the present invention, a cross-sectional view and an exploded view. The pre-installed rotary pusher for intraocular lens comprises a main body 2, a rotating handle 1, an introduction head 3, an inner spiral 4, a push rod 5, a push needle 6, a lens pressing tablet 7 and an intraocular lens 8. The rear end of the main body 2 is connected to the rotating handle 1, the front end of the main body 2 is connected to the introduction head 3, the interior of the main body 2 is provided with an inner spiral 4, a push rod 5, a push needle 6, a lens pressing tablet 7 from back to front, the rotating handle 1 is connected to the push rod 5 via the inner spiral 4, the push rod 5 is connected to the push needle 6, the push rod 5 is connected to the push needle 6, and the push rod 5 is connected to the push needle 6. The injection needle 6 is connected to the lens pressing piece 7. The front end of the main body 2 is provided with a lens pre-loading part 203, and the lens pre-loading part 203 is pre-installed with an artificial lens 8. The lens pressing piece 7 is provided with a stop block 704. The rotating handle 1 rotates to drive the injection needle 6 and the lens pressing piece 7 to move forward together. When the stop block 704 of the lens pressing piece 7 contacts the stop surface 207 of the main body 2, the lens pressing piece 7 no longer moves forward. The rotating handle 1 continues to rotate, the injection needle 6 is separated from the lens pressing piece 7, and the artificial lens 8 is pushed into the eye.

[0029] like Figure 4-10The figure shows a schematic diagram of the rotary handle, main body, introduction head, inner screw, injection rod, injection needle, and lens tablet pressing structure of a pre-installed intraocular lens rotary injection device provided by the present invention. The main body 2 is provided with a rotary handle buckle 202, and the rotary handle 1 is provided with a main body slot 102. The main body 2 and the rotary handle 1 are connected by the rotary handle buckle 202 and the main body slot 102. The rotary handle 1 can rotate freely about the axis of the main body 2 but cannot move forward or backward. The rotary handle 1 is provided with an anti-sway platform 105, which cooperates with the anti-sway slot 201 of the main body 2 to prevent the rotary handle 1 from shaking during rotation.

[0030] The main body 2 is provided with an introduction head buckle 204, and the introduction head 3 is provided with a main body slot 2 301. The main body 2 and the introduction head 3 are connected through the introduction head buckle 204 and the main body slot 2 301. The introduction head 3 is provided with an anti-fool platform 302, which cooperates with the anti-fool groove 205 of the main body 2, which can facilitate installation and prevent reverse installation, thereby improving production efficiency and reducing labor costs. A guide groove 1 305 is provided in the introduction head 3 for guiding the lens pre-installed part 203 for easy installation. The introduction head 3 is provided with an automatic folding inner cavity 303, which can fold the sheet-like artificial lens 8 into a smaller ball and push it into the eye.

[0031] The inner spiral part 4 is connected to the rotating handle 1, and a spiral column 103 is provided in the rotating handle 1. The double thread 104 on the outside of the spiral column 103 is threadedly connected to the double thread 2 403 on the inner wall of the inner spiral part 4. The outside of the rotating handle 1 is provided with an anti-slip groove 101 to prevent the doctor from slipping during operation and affecting the surgical effect. The inner spiral part 4 can move back and forth but cannot rotate. The inner spiral part 4 is provided with an anti-rotation platform 401, which cooperates with the anti-rotation groove 206 of the main body 2 to prevent the inner spiral part 4 from rotating. The inner spiral part 4 is provided with two symmetrical guide platforms 404, which can facilitate installation and prevent reverse installation, thereby improving production efficiency and reducing costs.

[0032] The inner spiral part 4 is provided with an injection rod buckle 1 402, and the injection rod 5 is provided with an inner spiral part slot 501. The inner spiral part 4 and the injection rod 5 are connected with the inner spiral part slot 501 through the injection rod buckle 1 402 and the inner spiral part slot 501 and cannot rotate. The injection rod 5 is provided with a guide groove 2 504, which cooperates with the guide platform 404 of the inner spiral part 4 to guide the injection rod buckle 1 402 and the inner spiral part slot 501 to complete the engagement, which can facilitate installation and prevent reverse installation, thereby improving production efficiency and reducing costs.

[0033] The push rod 5 is provided with a push needle slot 503, and the push needle 6 is provided with a push rod buckle 2 603. The push rod 5 and the push needle 6 are connected through the push needle slot 503 and the push rod buckle 2 603. The push rod 5 is provided with a push rod anti-rotation groove 502, which cooperates with the push rod anti-rotation platform 602 of the push needle 6 to prevent the push needle 6 from rotating and affecting the injection effect. A rotating handle rotating cavity 505 is provided in the push rod 5, and the spiral column 103 can rotate freely and move back and forth in the rotating handle rotating cavity 505. The rotating handle 1 can move back and forth in the rotating handle rotating cavity 505.

[0034] The push needle 6 is provided with a crystal pressing plate slot 601, and the crystal pressing plate 7 is provided with a push needle buckle 703. The push needle 6 and the crystal pressing plate 7 are connected through the crystal pressing plate slot 601 and the push needle buckle 703. The sliding groove 702 of the crystal pressing plate 7 and the crystal pressing plate moving groove 604 of the push needle 6 cooperate with each other, so that the crystal pressing plate 7 can move freely on the push needle 6 and will not fall off. The front end of the crystal pressing plate 7 is provided with a crystal pressing tongue 701, and a limit block 705 is provided on the center line. The introduction head 3 is provided with a crystal pressing tongue deformation position 304.

[0035] The assembly process of the present invention is:

[0036] ① The push rod 5 and the push needle 6 are connected by a snap and cannot rotate;

[0037] ② The injection rod 5 and the inner screw 4 are connected by a snap-fit ​​connection and cannot rotate;

[0038] ③ The crystal pressing piece 7 and the push needle 6 are connected by a buckle. The push needle 6 can be pulled out of the crystal pressing piece slot 601 by applying force, and the push needle 6 can move freely;

[0039] ④ The rotating handle 1 and the inner screw member 4 are connected by threads. By rotating the rotating handle 1, the above components can move forward and backward;

[0040] ⑤Insert the above components into the main body 2, place the artificial lens 8 upside down in the lens pre-installed part 203 of the main body 2, and insert the introduction head 3 into the main body 2 to complete the assembly.

[0041] The working principle of the present invention is:

[0042] ①Inject the viscoelastic agent into the introduction head 3 through the injection hole of the introduction head;

[0043] ② Rotate the rotary handle 1 to move the components (inner screw 4, injection rod 5, injection needle 6, crystal tablet 7) forward;

[0044] ③ After the lens pressing piece 7 presses the intraocular lens 8, the main body 2 is provided with a stop surface 207, and the lens pressing piece 7 is provided with a stop block 704. The stop surface 207 of the main body 2 blocks the stop block 704 of the lens pressing piece 7. When the rotary handle 1 is further rotated, the lens pressing piece slot 601 is disengaged from the injection needle buckle 703;

[0045] ④ Continue to rotate the rotary handle 1, the injection needle 6 continues to move forward, and starts to push the lens, and the lens is pushed into the eye through the introduction head 3.

[0046] The present invention is pre-assembled, with the lens pre-installed in a sterile factory workshop. This not only reduces the risk of contamination and infection, but also speeds up patient recovery. It also eliminates the tedious task of inserting the lens, reducing the doctor's workload and minimizing the risk of the lens being crushed during insertion into the device and leaking into the patient's body. The present invention utilizes a rotary push-in method, which not only saves thrust but also provides a uniform and controlled injection speed, minimizing patient injury.

[0047] 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 rotary pusher for intraocular lens, characterized in that: The eyepiece is provided with a rotating handle, a guide head, an inner spiral part, an injection rod, an injection needle, a lens pressing piece and an artificial lens, the tail of the main body is connected with a rotating handle, the front end of the main body is connected with the introduction head, the interior of the main body is provided with an inner spiral part, an injection rod, an injection needle and a lens pressing piece in sequence from back to front, the rotating handle is connected to the injection rod through the inner spiral part, the injection rod is connected to the injection needle, the injection needle is connected to the lens pressing piece, the front end of the main body is provided with a lens pre-loading part, the lens pre-loading part is pre-loaded with an artificial lens, and the lens pressing piece is provided with a stop block, and the rotating handle rotates to drive the injection needle and the lens pressing piece to move forward together, when the stop block of the lens pressing piece contacts the stop surface of the main body, the lens pressing piece no longer moves forward, the rotating handle continues to rotate, the injection needle is separated from the lens pressing piece, and the artificial lens is pushed into the eye, the main body is provided with a rotating handle buckle, the rotating handle is provided with a main body slot 1, the main body and the rotating handle are connected through the rotating handle buckle and the main body slot 1, and the rotating handle can be used as a main The body axis rotates freely and cannot move forward and backward, and the rotating handle is provided with an anti-sway platform, and the main body is provided with an anti-sway groove matching the anti-sway platform, and the main body is provided with an introduction head buckle, and the introduction head is provided with a main body slot 2, and the main body and the introduction head are connected through the introduction head buckle and the main body slot 2, and the introduction head is provided with an anti-stupid platform, and the main body is provided with an anti-stupid groove matching the anti-stupid platform, and the introduction head is provided with a guide groove 1 for guiding the installation of the lens pre-installed part, and the introduction head is provided with an automatic folding inner cavity, which can fold the sheet-like artificial lens into a ball and push it into the eye. The inner spiral part is connected to the rotating handle, and a spiral column is provided in the rotating handle, and the double thread 1 on the outer side of the spiral column is connected to the double thread 2 on the inner wall of the inner spiral part through threaded connection, and an anti-slip groove is provided on the outside of the rotating handle, and the inner spiral part can move back and forth but cannot rotate, and the inner spiral part is provided with an anti-rotation platform, and the main body is provided with an anti-rotation groove matching the anti-rotation platform to prevent the inner spiral part from rotating, and the inner spiral part is symmetrically provided with two guide platforms.

2. The intraocular lens pre-installed rotary pusher according to claim 1, characterized in that: The inner spiral part is provided with a push rod buckle 1, and the push rod is provided with an inner spiral part slot. The inner spiral part and the push rod are connected with the inner spiral part slot through the push rod buckle 1 and the inner spiral part slot and cannot rotate. The push rod is provided with a guide groove 2, which cooperates with the guide platform of the inner spiral part to guide the push rod buckle 1 and the inner spiral part slot to complete the engagement.

3. The intraocular lens pre-installed rotary pusher according to claim 2, characterized in that: The push rod is provided with a push needle slot, and the push needle is provided with a push rod buckle 2. The push rod and the push needle are connected through the push needle slot and the push rod buckle 2. The push rod is provided with a push rod anti-rotation groove, which cooperates with the push rod anti-rotation platform of the push needle to prevent the push needle from rotating. A rotating inner cavity of a rotating handle is provided in the push rod, and the spiral column can rotate freely and move back and forth in the rotating inner cavity of the rotating handle. The rotating handle can move back and forth in the rotating inner cavity of the rotating handle.

4. The intraocular lens pre-installed rotary pusher according to claim 3, characterized in that: The push needle is provided with a crystal pressing plate slot, and the crystal pressing plate is provided with a push needle buckle. The push needle and the crystal pressing plate are connected through the crystal pressing plate slot and the push needle buckle. The sliding groove of the crystal pressing plate and the crystal pressing plate moving groove of the push needle cooperate with each other, so that the crystal pressing plate can move freely on the push needle without falling off. The front end of the crystal pressing plate is provided with a crystal pressing tongue, and a limit block is provided on the center line. The crystal pressing tongue deformation position is provided in the introduction head.

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