Sterile sealing type disposable intraocular lens syringe body

Abstract

The utility model relates to a sterile sealing type disposable intraocular lens injector body, which belongs to the technical field of injectors and comprises an injection tube, an injection port is fixed at the left end of the injection tube, an antibacterial injection mechanism is arranged on the injection tube, and an installation mechanism is arranged in the injection tube. The anti-bacterial injection mechanism comprises a mounting plate which is slidably connected to the interior of the injection cylinder. According to the sterile sealing type disposable intraocular lens injector body, the anti-bacterial injection mechanism is arranged on the injection barrel, the screw rod and an intraocular lens can be separated from each other through the corrugated pipe, the sealing ring is used for separating air on the left side of the mounting plate from space on the right side, and therefore contamination of bacteria on the right side to the left intraocular lens is avoided; the sealing performance of the left side of the syringe is improved, the mounting mechanism is arranged in the syringe, the anti-microbial injection mechanism can be mounted from the right side of the syringe, and meanwhile, the mounting plate can be limited, so that the piston can be stably pushed by the lead screw.

Description

Technical Field

[0001] The utility model relates to the technical field of syringes, in particular to a sterile sealed disposable intraocular lens syringe body. Background Technique

[0002] Intraocular lens is currently the most effective method for correcting the refraction of aphakic eyes. It anatomically and optically replaces the original lens and constitutes an approximately normal system. Especially the posterior chamber intraocular lens fixed at the physiological position of the normal lens can be used for monocular eyes. After the operation, the vision can be quickly restored, and it is easy to establish binocular single vision and stereoscopic vision. A syringe is required during the injection of the intraocular lens.

[0003] For example, a Chinese patent (CN220046192U) discloses an intraocular lens syringe, including: a housing having a through channel extending longitudinally in the syringe; a syringe barrel; a plunger with a threaded portion on the plunger rod; a push-pull slider slidably arranged longitudinally in the through channel; a first movable pressing block and a second movable pressing block movably mounted on the push-pull slider. The first movable pressing block and the second movable pressing block move towards each other or away from each other following the movement of the push-pull slider. When the first movable pressing block and the second movable pressing block are closed, a threaded channel that is threadedly engaged with the threaded portion is formed. This utility model provides an intraocular lens syringe. By adding a first movable pressing block and a second movable pressing block that can be closed or opened with each other in the housing, when the two are opened, the piston part can be directly and quickly advanced or retracted by pulling the plunger; when the two are closed, the piston part needs to be advanced or retracted by rotating the plunger.

[0004] The above solution still has the following technical deficiencies. The above solution is not convenient for ensuring the sealing performance of the syringe. Since it is difficult to control the friction force between the piston part and the inner wall of the syringe barrel in the above solution, if the friction force between the piston part and the inner wall of the syringe barrel is large, the user needs a greater force to drive the piston part to move. If the friction force between the piston part and the inner wall of the syringe barrel is small, there is likely to be a gap between the piston part and the syringe barrel, which is likely to affect the airtightness of the syringe, and thus it is easy for bacteria to enter the injection solution. Based on this, a sterile sealed disposable intraocular lens syringe body is proposed. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a sterile sealed disposable intraocular lens syringe body, which has the advantages of improving the airtightness of the syringe while reducing the friction force between the syringe barrel and the piston, and solves the problem that the airtightness of the syringe is difficult to be guaranteed.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A sterile and sealed disposable intraocular lens syringe body, including a syringe barrel, with an injection port fixed at the left end of the syringe barrel, an anti-bacterial injection mechanism provided on the syringe barrel, and a mounting mechanism provided inside the syringe barrel;

[0007] The anti-bacterial injection mechanism includes a mounting plate slidably connected inside the syringe barrel, a lead screw slidably connected inside the mounting plate, a first handle fixed to the right end of the lead screw, a piston fixed to the left end of the lead screw, a conical end rubber plug fixed to the left end of the piston, a corrugated sleeve fixed between the left side of the mounting plate and the right side of the piston, a sealing ring fixed to the outer surface of the mounting plate, and the outer surface of the sealing ring is in interference fit with the inner wall of the syringe barrel.

[0008] Furthermore, the mounting mechanism includes a moving plate slidably connected to the inner wall of the syringe barrel and a chute opened at the bottom side of the inner wall of the syringe barrel. The inner wall of the moving plate is provided with an internal thread matching the lead screw. A connecting rod is fixed to the left end of the moving plate, a positioning block is fixed to the bottom end of the connecting rod, screws are threadedly connected to the top side and the bottom side of the moving plate, a second handle is fixed to the side of the screw away from the moving plate, and two moving rods are fixed between the left side of the moving plate and the right side of the mounting plate.

[0009] Furthermore, the outer surface of the piston abuts against the inner wall of the syringe barrel, and the lead screw is located inside the corrugated sleeve.

[0010] Furthermore, a bearing seat is opened at the right end of the piston, and the lead screw rotates inside the bearing seat.

[0011] Furthermore, the moving plate is located on the right side of the mounting plate, and the outer surface of the moving plate fits against the outer surface of the syringe barrel.

[0012] Furthermore, a notch is opened at the right side of the chute, and the positioning block can slide in the chute.

[0013] Furthermore, through holes are opened at both the upper and lower ends of the syringe barrel, and the two screws can slide in the corresponding through holes.

[0014] Furthermore, threaded holes are opened at both the top side and the bottom side of the moving plate, and the screws are threadedly connected in the threaded holes.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0016] This sterile-sealed disposable intraocular lens syringe body is equipped with an anti-bacterial injection mechanism on the syringe barrel. It can use a corrugated pipe to separate the lead screw from the intraocular lens. The sealing ring is used to separate the air on the left side of the mounting plate from the space on the right side, thus preventing bacteria on the right side from contaminating the intraocular lens on the left side, improving the sealing performance on the left side of the syringe barrel. By providing a mounting mechanism inside the syringe barrel, the anti-bacterial injection mechanism can be installed from the right side of the syringe barrel, and at the same time, the mounting plate can be limited, enabling the piston to be steadily pushed by the lead screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic structural diagram of the anti-bacterial injection mechanism of the present invention;

[0019] Figure 3 is a schematic structural diagram of the mounting mechanism of the present invention;

[0020] Figure 4 is a three-dimensional schematic diagram of the connection structure of the moving plate of the present invention.

[0021] In the figure: 1 syringe barrel, 2 injection port, 300 anti-bacterial injection mechanism, 301 mounting plate, 302 lead screw, 303 first handle, 304 piston, 305 tapered end rubber plug, 306 corrugated sleeve, 307 sealing ring, 400 mounting mechanism, 401 moving plate, 402 internal thread, 403 connecting rod, 404 positioning block, 405 chute, 406 screw, 407 second handle, 408 moving rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 to 4 , a sterile-sealed disposable intraocular lens syringe body in this embodiment includes a syringe barrel 1, an injection port 2 is fixed at the left end of the syringe barrel 1, an anti-bacterial injection mechanism 300 is provided on the syringe barrel 1, and a mounting mechanism 400 is provided inside the syringe barrel 1.

[0024] The anti-bacterial injection mechanism 300 in this embodiment can ensure that the intraocular lens is not contaminated by bacteria while steadily injecting the intraocular lens, and the mounting mechanism 400 is used to facilitate the installation of the anti-bacterial injection mechanism 300.

[0025] Please refer to Figure 1 and Figure 2 For the convenience of steadily injecting the intraocular lens while ensuring that the intraocular lens is not contaminated by bacteria, the anti-bacterial injection mechanism 300 in this embodiment includes a mounting plate 301 slidably connected inside the syringe 1. A lead screw 302 is slidably connected inside the mounting plate 301. A first handle 303 is fixed to the right end of the lead screw 302. A piston 304 is fixed to the left end of the lead screw 302. The outer surface of the piston 304 abuts against the inner wall of the syringe 1. A bearing seat is provided at the right end of the piston 304, and the lead screw 302 rotates in the bearing seat. A conical end rubber plug 305 is fixed to the left end of the piston 304. A corrugated sleeve 306 is fixed between the left side of the mounting plate 301 and the right side of the piston 304. The lead screw 302 is located inside the corrugated sleeve 306. A sealing ring 307 is fixed to the outer surface of the mounting plate 301, and the outer surface of the sealing ring 307 is in interference fit with the inner wall of the syringe 1.

[0026] In the anti-bacterial injection mechanism 300 of this embodiment, rotating the first handle 303 can drive the lead screw 302 to rotate, and the lead screw 302 can drive the piston 304 to move. The corrugated sleeve 306 is used to separate the intraocular lens from the lead screw 302, thus avoiding the contamination of the intraocular lens by the lead screw 302. The sealing ring 307 is used to prevent the intraocular lens from flowing into the right side of the mounting plate 301.

[0027] It should be noted that since the sealing ring 307 is installed before using the anti-bacterial injection mechanism 300, the friction force between the sealing ring 307 and the inner wall of the syringe 1 will not affect the normal injection of the intraocular lens. The friction force generated between the outer surface of the piston 304 and the inside of the syringe 1 is only used to limit the piston 304 itself and does not need to seal the syringe 1. Even if the intraocular lens flows into the right side of the piston 304, it will not cause contamination of the intraocular lens.

[0028] Please refer to Figure 1 、 Figure 3 and Figure 4, To facilitate the installation of the antibacterial injection mechanism 300, the installation mechanism 400 in this embodiment includes a moving plate 401 slidably connected to the inner wall of the syringe barrel 1 and a chute 405 opened at the bottom side of the inner wall of the syringe barrel 1. The moving plate 401 is located on the right side of the mounting plate 301. The outer surface of the moving plate 401 fits with the outer surface of the syringe barrel 1. A notch is opened on the right side of the chute 405. The positioning block 404 can slide in the chute 405. An internal thread 402 matching the lead screw 302 is opened on the inner wall of the moving plate 401. A connecting rod 403 is fixed to the left end of the moving plate 401. A positioning block 404 is fixed to the bottom end of the connecting rod 403. Screws 406 are threadedly connected to the top side and the bottom side of the moving plate 401. Through holes are opened at both the upper and lower ends of the syringe barrel 1. The two screws 406 can slide in the corresponding through holes. Threaded holes are opened on both the top side and the bottom side of the moving plate 401. The screws 406 are threadedly connected in the threaded holes. A second handle 407 is fixed to the side of the screw 406 away from the moving plate 401. Two moving rods 408 are fixed between the left side of the moving plate 401 and the right side of the mounting plate 301.

[0029] In the installation mechanism 400 of this embodiment, the lead screw 302 can be limited by the moving plate 401. The positioning block 404 is used to position the moving plate 401 during its installation. The screw 406 is fixed to the moving plate 401 by being threadedly connected in the threaded hole.

[0030] It should be noted that the moving rod 408 fixes the mounting plate 301 by fixing the mounting plate 301 and the moving plate 401.

[0031] The working principle of the above embodiment is as follows:

[0032] When the antibacterial injection mechanism 300 needs to be installed, align the positioning block 404 with the chute 405, move the moving plate 401 into the syringe barrel 1. The moving plate 401 drives the moving rod 408 and the antibacterial injection mechanism 300 into the syringe barrel 1. Then align the screw 406 with the threaded hole of the moving plate 401, and rotate the second handle 407 to install the screw 406 into the threaded hole, thereby fixing the moving plate 401 and completing the installation of the antibacterial injection mechanism 300. When the intraocular lens needs to be injected, rotate the first handle 303. The first handle 303 drives the lead screw 302 to rotate. The lead screw 302 drives the piston 304 and the conical end rubber stopper 305 to move. The piston 304 and the conical end rubber stopper 305 inject the intraocular lens into the eye.

[0033] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model.

Claims

1. A sterile sealed disposable intraocular lens syringe body, comprising a syringe barrel (1), characterized in that: An injection port (2) is fixed at the left end of the injection barrel (1), an antibacterial injection mechanism (300) is provided on the injection barrel (1), and a mounting mechanism (400) is provided inside the injection barrel (1); The antibacterial injection mechanism (300) comprises a mounting plate (301) slidably connected to the inside of the injection barrel (1); a screw rod (302) is slidably connected to the inside of the mounting plate (301); a first handle (303) is fixed to the right end of the screw rod (302); a piston (304) is fixed to the left end of the screw rod (302); a tapered end rubber plug (305) is fixed to the left end of the piston (304); a corrugated sleeve (306) is fixed between the left side of the mounting plate (301) and the right side of the piston (304); a sealing ring (307) is fixed to the outer surface of the mounting plate (301); and the outer surface of the sealing ring (307) is interference fit with the inner wall of the injection barrel (1).

2. The sterile sealed disposable intraocular lens syringe body according to claim 1, characterized in that: The mounting mechanism (400) comprises a movable plate (401) slidably connected to the inner wall of the injection barrel (1) and a slide groove (405) provided on the bottom side of the inner wall of the injection barrel (1); the inner wall of the movable plate (401) is provided with an internal thread (402) matching the screw rod (302); a connecting rod (403) is fixed to the left end of the movable plate (401); a positioning block (404) is fixed to the bottom end of the connecting rod (403); a screw rod (406) is threadedly connected to the top and bottom sides of the movable plate (401); a second handle (407) is fixed to the side of the screw rod (406) away from the movable plate (401); and two movable rods (408) are fixed between the left side of the movable plate (401) and the right side of the mounting plate (301).

3. The sterile sealed disposable intraocular lens syringe body according to claim 1, characterized in that: The outer surface of the piston (304) abuts against the inner wall of the injection cylinder (1), and the screw rod (302) is located in the bellows sleeve (306).

4. The sterile sealed disposable intraocular lens syringe body according to claim 1, characterized in that: A bearing seat is provided at the right end of the piston (304), and the screw rod (302) rotates in the bearing seat.

5. The sterile sealed disposable intraocular lens syringe body according to claim 2, characterized in that: The movable plate (401) is located on the right side of the mounting plate (301), and the outer surface of the movable plate (401) is in contact with the outer surface of the injection cylinder (1).

6. The sterile sealed disposable intraocular lens syringe body according to claim 2, characterized in that: A notch is provided on the right side of the slide groove (405), and the positioning block (404) can slide in the slide groove (405).

7. The sterile sealed disposable intraocular lens syringe body according to claim 2, characterized in that: Through holes are provided at both the upper and lower ends of the injection cylinder (1), and the two screw rods (406) can slide in the corresponding through holes.

8. The sterile sealed disposable intraocular lens syringe body according to claim 2, characterized in that: The top and bottom sides of the movable plate (401) are both provided with threaded holes, and the screw rod (406) is threadedly connected in the threaded holes.

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