Spring-driven intraocular lens pushing mechanism

Abstract

The utility model relates to an intraocular lens pushing mechanism driven by a spring, which belongs to the field of medical instruments and comprises a sleeve, a pushing mechanism is arranged in the sleeve, a protection mechanism is arranged on the right side of the sleeve, a connecting frame is fixed on the right side of the sleeve, and a leading-in head is in threaded connection with the right side of the connecting frame. According to the spring-driven intraocular lens pushing mechanism, the guide-in head is protected through the protective cover, meanwhile, the contact part between the protective cover and the sleeve can be protected through the protective shell, the contact area of the protective cover and the sleeve is prevented from being damaged when the intraocular lens falls onto the ground, and a sponge block can be soaked with disinfectant such as alcohol through a connecting pipe; the guide-in head is disinfected, the intraocular lens is placed in the connecting frame, the push block is extruded to enable the piston block to push the intraocular lens to move towards the interior of the guide-in head, so that the purpose of pushing the intraocular lens is achieved, the pushing speed can be prevented from being too high through the spring body, and the purpose of buffering is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a spring-driven intraocular lens pushing mechanism. Background Art

[0002] The human eye may suffer from many diseases, leading to mild deterioration or even complete loss of vision. Although contact lenses and glasses can compensate for some diseases, others may require ophthalmic surgery. Generally, ophthalmic surgery can be classified into posterior segment surgeries such as vitreoretinal surgery and anterior segment surgeries such as cataract surgery.

[0003] For example, Chinese Patent CN 219963179 U discloses an intraocular lens inserter system, which includes an insertion head, a syringe barrel, a plunger rod, a plunger cap and a spring. The insertion head is detachably installed on the syringe barrel. The plunger rod extends into the syringe barrel. The plunger cap is connected to one end of the plunger rod. The spring is sleeved on the plunger rod. The syringe barrel is provided with a plurality of spaced slots for installing two or more different structural types of insertion heads.

[0004] The above-mentioned intraocular lens inserter system still has certain deficiencies. When in use, it can install a foldable insertion head, or choose to install a flat insertion head for use, or can be used with an intraocular lens loading bracket. However, its insertion head is often exposed outside, which is not only easy to infect bacteria when exposed to the air, making it necessary to disinfect with alcohol every time it is used, which is rather cumbersome. Therefore, this application proposes a spring-driven intraocular lens pushing mechanism to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a spring-driven intraocular lens pushing mechanism, which has the advantage of effectively protecting the insertion head, and solves the problem that the insertion head is often exposed outside, which is not only easy to infect bacteria when exposed to the air, making it necessary to disinfect with alcohol every time it is used, which is rather cumbersome.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A spring-driven intraocular lens pushing mechanism, including a sleeve, a pushing mechanism is arranged inside the sleeve, a protection mechanism is arranged on the right side of the sleeve, a connecting frame is fixed on the right side of the sleeve, and an insertion head is threadedly connected to the right side of the connecting frame;

[0007] The protection mechanism includes a threaded seat fixed on the outer side of the sleeve, a protection cover is threadedly connected to the outer side of the threaded seat, a protective shell is fixed on the outer side of the threaded seat, and a sponge block is fixed on the right side wall of the inner cavity of the protection cover;

[0008] The propulsion mechanism includes a spring body fixed to the right side wall of the inner cavity of the sleeve. A connecting column is fixed to the left side of the spring body. A connecting rod is fixed to the right side of the connecting column. A push block is fixed to the left side of the connecting column.

[0009] Furthermore, two support plates are fixed to the outer side of the sleeve. The two support plates are symmetrically distributed around the sleeve as the axis and are inclined to the right side.

[0010] Furthermore, the protection mechanism further includes a connecting pipe fixed to the right side of the protection cover. A rotary cover is threadedly connected to the outer side of the connecting pipe.

[0011] Furthermore, the left end of the connecting pipe penetrates through the right side of the protection cover and extends into the interior of the protection cover. The left end of the connecting pipe penetrates through the right side of the sponge block and extends into the interior of the sponge block.

[0012] Furthermore, a receiving groove is formed on the left side of the sponge block. The guiding head is located inside the receiving groove.

[0013] Furthermore, a fixing opening is formed on the right side of the protective shell, which is located on the left end of the protection cover and on its outer side.

[0014] Furthermore, the spring body is sleeved on the outer side of the connecting rod. The right end of the connecting rod penetrates through the right side wall of the inner cavity of the sleeve and extends into the interior of the connecting frame and is fixed with a piston block.

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

[0016] 1. For this spring-driven intraocular lens pushing mechanism, the protection cover is used to protect the guiding head. At the same time, the protective shell can protect the contact part between the protection cover and the sleeve, avoiding damage to the contact area between the protection cover and the sleeve when it falls to the ground. And through the connecting pipe, disinfectants such as alcohol can wet the sponge block to disinfect the guiding head.

[0017] 2. For this spring-driven intraocular lens pushing mechanism, the intraocular lens is placed inside the connecting frame, and by squeezing the push block, the piston block is used to push the intraocular lens to move into the interior of the guiding head, so as to achieve the purpose of pushing the intraocular lens. The spring body can avoid too fast pushing speed and play a buffering role. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a cross-sectional structural diagram of the present utility model;

[0020] Figure 3 is a schematic diagram of the protection mechanism of the present utility model;

[0021] Figure 4 This is a schematic diagram of the propulsion mechanism of the present utility model.

[0022] In the figure: 1 sleeve, 2 protection mechanism, 201 threaded seat, 202 protective cover, 203 protective shell, 204 sponge block, 205 connecting pipe, 3 support plate, 4 propulsion mechanism, 401 spring body, 402 connecting column, 403 connecting rod, 404 push block, 5 connecting frame, 6 guiding head. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 2 , a spring-driven intraocular lens pushing mechanism in this embodiment includes a sleeve 1. A propulsion mechanism 4 is arranged inside the sleeve 1. A protection mechanism 2 is arranged on the right side of the sleeve 1. A connecting frame 5 is fixed on the right side of the sleeve 1. A guiding head 6 is threadedly connected to the right side of the connecting frame 5.

[0025] Two support plates 3 are fixed on the outer side of the sleeve 1. The two support plates 3 are symmetrically distributed with the sleeve 1 as the axis and are inclined to the right side.

[0026] Please refer to Figure 3 , in order to disinfect and protect the guiding head 6, the protection mechanism 2 in this embodiment includes a threaded seat 201 fixed on the outer side of the sleeve 1. A protective cover 202 is threadedly connected to the outer side of the threaded seat 201. A protective shell 203 is fixed on the outer side of the threaded seat 201. A sponge block 204 is fixed on the right side wall of the inner cavity of the protective cover 202.

[0027] In this embodiment, the protection mechanism 2 further includes a connecting pipe 205 fixed to the right side of the protection cover 202. A screw cap is threadedly connected to the outer side of the connecting pipe 205 to threadedly connect the protection cover 202 to the sleeve 1 again. The protection cover 202 is used to protect the introduction head 6. The left end of the connecting pipe 205 penetrates the right side of the protection cover 202 and extends into the interior of the protection cover 202. The left end of the connecting pipe 205 penetrates the right side of the sponge block 204 and extends into the interior of the sponge block 204. The protective shell 203 can protect the part where the protection cover 202 contacts the sleeve 1, preventing the contact area between the protection cover 202 and the sleeve 1 from being damaged when it falls to the ground. A receiving groove is formed on the left side of the sponge block 204, and the introduction head 6 is located inside the receiving groove. A fixing port is formed on the right side of the protective shell 203, which is located at the left end of the protection cover 202 and on its outer side. Through the connecting pipe 205, disinfectants such as alcohol can wet the sponge block 204 to disinfect the introduction head 6.

[0028] It should be noted that the protection cover 202 is used to protect the introduction head 6, and at the same time, the protective shell 203 can protect the part where the protection cover 202 contacts the sleeve 1, preventing the contact area between the protection cover 202 and the sleeve 1 from being damaged when it falls to the ground. Through the connecting pipe 205, disinfectants such as alcohol can wet the sponge block 204 to disinfect the introduction head 6.

[0029] Please refer to Figure 4 , for the purpose of buffering, the propulsion mechanism 4 in this embodiment includes a spring body 401 fixed to the right side wall of the inner cavity of the sleeve 1. A connecting column 402 is fixed to the left side of the spring body 401. A connecting rod 403 is fixed to the right side of the connecting column 402. A push block 404 is fixed to the left side of the connecting column 402.

[0030] In this embodiment, the spring body 401 is sleeved on the outer side of the connecting rod 403. The spring body 401 can prevent the pushing speed from being too fast and serve the purpose of buffering. The right end of the connecting rod 403 penetrates the right side wall of the inner cavity of the sleeve 1 and extends into the interior of the connecting frame 5 and is fixed with a piston block. Rotate the protection cover 202 to disengage it from the sleeve 1. Then, place the intraocular lens into the interior of the connecting frame 5, and by squeezing the push block 404, the piston block is made to push the intraocular lens to move into the interior of the introduction head 6, thereby achieving the purpose of pushing the intraocular lens.

[0031] It should be noted that the intraocular lens is placed into the interior of the connecting frame 5, and by squeezing the push block 404, the piston block is made to push the intraocular lens to move into the interior of the introduction head 6, thereby achieving the purpose of pushing the intraocular lens. The spring body 401 can prevent the pushing speed from being too fast and serve the purpose of buffering.

[0032] It should be understood that in the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. At the same time, those parts not detailed in the present utility model are all well-known technologies in the art.

[0033] The working principle of the above embodiments is as follows:

[0034] (1) When the spring-driven intraocular lens pushing mechanism needs to be used, rotate the protective cover 202 to disengage it from the sleeve 1. Then, place the intraocular lens inside the connecting frame 5, and by squeezing the push block 404, the piston block pushes the intraocular lens to move inside the guiding head 6, so as to achieve the purpose of pushing the intraocular lens. The spring body 401 can avoid too fast pushing speed and play a buffering role.

[0035] (2) After the operation is completed, thread the protective cover 202 back onto the sleeve 1 to protect the guiding head 6 with the protective cover 202. At the same time, the protective shell 203 can protect the contact part between the protective cover 202 and the sleeve 1 to prevent the contact area between the protective cover 202 and the sleeve 1 from being damaged when it falls to the ground. And through the connecting pipe 205, disinfectant such as alcohol can wet the sponge block 204 to disinfect the guiding head 6.

[0036] It should be noted that in this article, 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 terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0037] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A spring-driven intraocular lens pushing mechanism, comprising a sleeve (1), characterized in that: Inside the sleeve (1), a propulsion mechanism (4) is provided. On the right side of the sleeve (1), a protection mechanism (2) is provided. On the right side of the sleeve (1), a connecting frame (5) is fixed. On the right side of the connecting frame (5), an introduction head (6) is threadedly connected. The protection mechanism (2) includes a threaded seat (201) fixed on the outer side of the sleeve (1). On the outer side of the threaded seat (201), a protection cover (202) is threadedly connected. On the outer side of the threaded seat (201), a protective shell (203) is fixed. On the right side wall of the inner cavity of the protection cover (202), a sponge block (204) is fixed. The propulsion mechanism (4) includes a spring body (401) fixed on the right side wall of the inner cavity of the sleeve (1). On the left side of the spring body (401), a connecting column (402) is fixed. On the right side of the connecting column (402), a connecting rod (403) is fixed. On the left side of the connecting column (402), a push block (404) is fixed.

2. The spring-driven intraocular lens pushing mechanism according to claim 1, characterized in that: On the outer side of the sleeve (1), two support plates (3) are fixed. The two support plates (3) are symmetrically distributed with the sleeve (1) as the axis and are inclined to the right side.

3. A spring-driven intraocular lens pushing mechanism according to claim 1, characterized in that: The protection mechanism (2) further includes a connecting pipe (205) fixed on the right side of the protection cover (202). On the outer side of the connecting pipe (205), a screw cap is threadedly connected.

4. A spring-driven intraocular lens pushing mechanism according to claim 3, wherein: The left end of the connecting pipe (205) penetrates through the right side of the protection cover (202) and extends into the interior of the protection cover (202). The left end of the connecting pipe (205) penetrates through the right side of the sponge block (204) and extends into the interior of the sponge block (204).

5. A spring-driven intraocular lens pushing mechanism according to claim 1, characterized in that: On the left side of the sponge block (204), a receiving groove is formed. The introduction head (6) is located inside the receiving groove.

6. A spring-driven intraocular lens pushing mechanism according to claim 1, characterized in that: On the right side of the protective shell (203), a fixing opening is formed on the left end of the protection cover (202) and on its outer side.

7. The spring-driven intraocular lens pushing mechanism according to claim 1, characterized in that: The spring body (401) is sleeved on the outer side of the connecting rod (403). The right end of the connecting rod (403) penetrates through the right side wall of the inner cavity of the sleeve (1) and extends into the interior of the connecting frame (5) and is fixed with a piston block.

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