CN219166769U - Pre-implantation system for intraocular lenses - Google Patents
Pre-implantation system for intraocular lenses Download PDFInfo
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- CN219166769U CN219166769U CN202223093508.XU CN202223093508U CN219166769U CN 219166769 U CN219166769 U CN 219166769U CN 202223093508 U CN202223093508 U CN 202223093508U CN 219166769 U CN219166769 U CN 219166769U
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- 238000002513 implantation Methods 0.000 title claims abstract description 101
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000007943 implant Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010002945 Aphakia Diseases 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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Abstract
The utility model discloses an implantation preassembly system for an intraocular lens, which comprises an implantation system main body, an implantation push rod and an intraocular lens loading bin; the implantation system main body comprises a catheter chamber, a loading bin chamber and an introduction chamber, wherein the catheter chamber is used for the axial movement of an implantation push rod and penetrates through the implantation push rod, the loading bin chamber is detachably connected with the intraocular lens loading bin, and the introduction chamber is sequentially connected from the implantation direction; the entrance of the leading-in chamber is provided with a haptic deformation component which enables the front haptic and the rear haptic of the intraocular lens to be folded or curled to the optical zone during the pushing process and has an arc-shaped bulge structure; the implanting end of the implanting push rod is provided with an artificial lens clamping part with a fork-shaped structure, an included angle between the artificial lens clamping part and the central axis of the artificial lens loading bin is an acute angle, and a part of optical area and a rear loop of the artificial lens are positioned in a bayonet of the artificial lens clamping part; the intraocular lens loading cartridge has a posterior haptic placement position and an anterior haptic placement position that are sequentially arranged along the implantation direction.
Description
Technical Field
The utility model belongs to the technical field of intraocular lenses, and particularly relates to an implantation preassembly system for an intraocular lens.
Background
Intraocular lenses are currently the most effective method of correcting aphakic eye refractive power. The existing hydrophilic preassembled intraocular lens implantation system is characterized in that an operator needs to operate with two hands, firstly, the intraocular lens is taken out of a packaging box and placed into an intraocular lens implantation device by using tweezers, then the intraocular lens is folded by using a folding device, finally, the intraocular lens is implanted into an eye through an implantation device body, the implantation process is complex and complicated, the risk of bacterial infection exists in the use or storage process, various uncontrollable problems are easy to occur, for example, when the intraocular lens is clamped by using tweezers, irreversible damage can be caused to the intraocular lens due to the fact that the clamping angle is not right or the force is not well controlled, in addition, the intraocular lens needs to be folded by using the tweezers firstly and then placed into the implantation device, the implantation angle or state cannot be well resolved, if the front haptic and the rear haptic are unfolded and placed into the implantation device, the conventional implantation device cannot well fold the front haptic and the rear haptic in the propulsion process, even the conventional implantation device cannot be folded in the propulsion process, the risk of misoperation is easy to occur for the operator.
In view of this, the present utility model has been made.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides an implantation pre-loading system for an intraocular lens, which is suitable for the implantation pre-loading system of a hydrophobic intraocular lens, has simple structure and reasonable design, and the intraocular lens is pushed into an inlet of an introduction chamber by an implantation push rod in the implantation process through a front haptic placement position and a haptic deformation assembly which are oppositely arranged in an intraocular lens loading bin and the introduction chamber, the front haptic is firstly contacted with the haptic deformation assembly at the inlet of the introduction chamber, after the pushing direction is blocked, is folded or bent to an optical area of the intraocular lens in the direction of the optical area, and the inner wall of the introduction chamber is gradually narrowed to press the intraocular lens to further curl the intraocular lens along with the continuous pushing of the implantation push rod.
In order to achieve the above object, the present utility model provides an implantation pre-assembly system for an intraocular lens, comprising an implantation system body, an implantation pushrod and an intraocular lens loading chamber;
the implantation system main body comprises a catheter chamber which is connected in sequence from the implantation direction, is used for the axial movement of the implantation push rod and is arranged in a penetrating manner, a loading bin chamber which is detachably connected with the intraocular lens loading bin, and an intraocular lens implantation chamber which is used for loading the intraocular lens loading bin into the eye; the diameter of the introducing cavity for folding or curling the artificial lens is reduced along the implantation direction, the outlet end of the introducing cavity is beveled, and a haptic deformation assembly which enables the front haptic and the rear haptic of the artificial lens to be folded or curled to the optical area in the pushing process and has an arc-shaped bulge structure is arranged at the inlet of the introducing cavity;
the implanting end of the implanting push rod is provided with an artificial lens clamping part with a fork-shaped structure, an included angle between the artificial lens clamping part and the central axis of the artificial lens loading bin is an acute angle, and a part of optical area and a rear loop of the artificial lens are positioned in a bayonet of the artificial lens clamping part;
the intraocular lens loading cartridge has a posterior haptic placement site and an anterior haptic placement site disposed sequentially along an implantation direction.
Preferably, the implantation pushing rod is driven by adopting a screwing/direct pushing structure;
preferably, the implantation pushing rod is provided with a thread matched with the screwing pushing structure;
preferably, the central axes of the implantation system main body, the implantation push rod and the intraocular lens loading bin are mutually overlapped and are in the same direction with the diameter direction of the intraocular lens loaded in the intraocular lens loading bin in the unfolded state;
preferably, two symmetrical ear plates are sleeved outside the catheter cavity;
preferably, the intraocular lens loading bin is of a flat box-shaped structure, one end, close to the catheter cavity, of the intraocular lens loading bin is provided with a through hole for the insertion push rod to pass through, and the other end is provided with a limiting clamping plate for the intraocular lens in the unfolded state to pass through;
preferably, the implantation push rod is provided with an axial limiting component and/or a radial limiting component, and the catheter cavity is provided with an axial limiting groove and/or a radial limiting groove corresponding to the axial limiting component and/or the radial limiting component.
The implantation preassembly system for the intraocular lens has the following beneficial effects:
the utility model effectively avoids the technical problems that the implantation process of the intraocular lens implantation system in the prior art is complex and complicated, if the front loop and the rear loop are folded and then put into the implantation device, the implantation angle or state cannot be well resolved, if the front loop and the rear loop are unfolded and put into the implantation device, the front loop and the rear loop are easy to be unfolded and cannot be folded in the pushing process, operators are easy to operate by mistake, and the risk of operation is increased. According to the utility model, through the inclined intraocular lens clamping part and the haptic deformation assembly, the intraocular lens is pushed to enter the inlet of the introducing cavity by the intraocular lens clamping part of the implanting push rod in the implanting process, the front haptic is firstly contacted with the haptic deformation assembly at the inlet of the introducing cavity, after the advancing direction is blocked, the front haptic is folded or bent to the optical area of the intraocular lens towards the optical area direction, and the inner wall of the introducing cavity is gradually narrowed to press the intraocular lens to further curl the intraocular lens along with the continuing advancing of the implanting push rod, and the intraocular lens is completely folded to the optical area when reaching the outlet of the introducing cavity due to the outward inclined arrangement of the intraocular lens clamping end, at the moment, the intraocular lens is in a fully and completely bent state, and finally the implanting push rod pushes the intraocular lens out of the introducing cavity and into the eye to complete the implanting operation. Simple structure, reasonable in design implants in the eye through implanting the pre-installation system, has avoided the damage that the people adorned the crystal and produced to the crystal, has guaranteed implantation effect stability of implantation system, has greatly reduced the risk of operation, has improved flexibility, reliability and the security of implantation process.
Drawings
Fig. 1 is a schematic view of an intraocular lens implantation preloaded system according to the present utility model.
Fig. 2 is a schematic view of the configuration of a catheter lumen and intraocular lens loading cartridge of an intraocular lens implantation pre-assembly system provided by the present utility model.
Fig. 3 is a schematic view of a portion of an assembly of an implant push rod for an intraocular lens implantation pre-assembly system according to the present utility model.
Fig. 4 is a schematic view of the configuration of a loading chamber and an introduction chamber of an intraocular lens implantation pre-assembly system provided by the present utility model.
Fig. 5 is a schematic view of the configuration of an intraocular lens loading cartridge for an intraocular lens implantation preloaded system according to the present utility model.
In the figure:
1. the implant system includes an implant system body 11, a conduit chamber 111, an ear plate 112, an axial restraint slot 113, a radial restraint slot 12, a loading chamber 13, a lead-in chamber 131, a haptic deformation assembly 2, an implant pushrod 21, an intraocular lens gripping portion 22, threads 3, an intraocular lens loading chamber 31, through holes 32, a restraint clamp 33, a front haptic placement location 34, a rear haptic placement location 4, an intraocular lens.
Detailed Description
The utility model will be further described with reference to specific examples and figures to aid in the understanding of the utility model.
As shown in fig. 1 to 5, an intraocular lens implantation pre-assembly system according to the present utility model comprises an implantation system body 1, an implantation pusher 2 and an intraocular lens loading chamber 3; the central axes of the implantation system main body 1, the implantation pushing rod 2 and the intraocular lens loading chamber 3 are mutually overlapped and are in the same direction with the diameter direction of the intraocular lens loaded in the intraocular lens loading chamber 3 in the unfolded state.
As shown in fig. 1-2 and 4, the implantation system body 1 includes a catheter chamber 11 for axial movement of the implantation pusher 2 and disposed therethrough, a loading chamber 12 detachably connected to the intraocular lens loading chamber 3, and an introduction chamber 13 for implanting the intraocular lens 4 loaded by the intraocular lens loading chamber 3 into the eye, which are sequentially connected from the implantation direction. The diameter of the insertion chamber 13 for folding or crimping the intraocular lens 4 decreases in the direction of implantation and its outlet end is beveled so that the intraocular lens can be folded and bent sufficiently. At the entrance to the introduction chamber 13, there is a haptic deformation assembly 131 which causes the anterior and posterior haptics of the intraocular lens 4 to fold or curl into the optical zone during advancement and which has an arcuately convex configuration, the haptic deformation assembly 131 effectively blocking advancement of the anterior haptic, causing the anterior haptic to fold fully into the optical zone as pushed by the implant push rod 2.
As shown in fig. 1 and 3, the implanting end of the implanting push rod 2 is provided with an intraocular lens clamping part 21 with a fork-shaped structure, the included angle between the intraocular lens clamping part 21 and the central axis of the intraocular lens loading bin 3 is an acute angle, namely, the intraocular lens clamping part 21 is arranged in an inclined way to the outside, part of the optical area of the intraocular lens and the end part of the rear haptic are positioned in the bayonet of the intraocular lens clamping part 21, when the implanting push rod 2 is implanted to push the intraocular lens 4, the combined action of the inclined clamping part and the haptic deformation assembly 131 enables the front haptic and the rear haptic to be completely folded to the optical area when the intraocular lens 4 is pushed out of the introducing chamber 13, and the intraocular lens 4 is in a fully and completely bent state.
The implantation push rod 2 is provided with an axial limiting component and/or a radial limiting component, and the catheter cavity 11 is provided with an axial limiting groove 112 and/or a radial limiting groove 113 corresponding to the axial limiting component and/or the radial limiting component. The implantation push rod 2 is driven by a screwing-in and direct-pushing structure, and the implantation push rod 2 is provided with a thread 22 matched with the screwing-in pushing structure, so that the implantation effect of the artificial lens is improved. The implantation push rod 2 is provided with an axial and/or radial limiting component, the catheter cavity 11 is provided with an axial and/or radial limiting groove corresponding to the axial and/or radial limiting component, the implantation push rod 2 cannot be separated from the catheter cavity 11, and the propulsion displacement path of the implantation push rod 2 is fixed. Two symmetrical ear plates 111 are sleeved outside the catheter cavity 11, so that an operator can easily realize one-hand sterile implantation operation, and the operation is simple.
As shown in fig. 5, the intraocular lens loading chamber 3 has a flat box-like structure and has a through hole 31 for the insertion push rod 2 to pass through at one end near the catheter chamber 11 and a stopper clamp plate 32 for the intraocular lens 4 in the expanded state to pass through at the other end. The intraocular lens loading cartridge 3 has a posterior haptic placement site 34 and an anterior haptic placement site 33 disposed in this order along the implantation direction.
The working principle of the utility model is as follows:
the implantation pusher 2 is assembled with the conduit chamber 11 of the implantation system main body 1 in advance, the intraocular lens loading chamber 3 is detachably connected to the loading chamber 12 of the implantation system main body 1, the implantation pusher 2 is pushed into the intraocular lens loading chamber 3 of the loading chamber 12 through the conduit chamber 11 in the implantation direction, the intraocular lens 4 is held by the intraocular lens holding part 21, the intraocular lens 4 is pushed to the entrance of the introducing chamber 13 as the implantation pusher 2 is pushed, the anterior haptic is firstly brought into contact with the haptic deformation assembly 131 at the entrance of the introducing chamber 13, after the pushing direction is blocked, the anterior haptic is folded or bent to the optical zone of the intraocular lens 4, as the implantation pusher 2 is pushed further, the inner wall of the introducing chamber 13 gradually narrows to press the intraocular lens to further curl it, and, since the intraocular lens holding end is inclined outward, the anterior haptic and the posterior haptic are completely folded or bent to the optical zone when reaching the exit of the introducing chamber 13, the intraocular lens 4 is completely curled, the intraocular lens 4 is completely achieved, the implantation pusher 2 finally pushes the intraocular lens 4 out of the introducing chamber 13 and enters the implantation operation into the eye 13.
Specific examples are set forth herein to illustrate the utility model in detail, and the description of the above examples is only for the purpose of aiding in understanding the core concept of the utility model. It should be noted that any obvious modifications, equivalents, or other improvements to those skilled in the art without departing from the inventive concept are intended to be included in the scope of the present utility model.
Claims (7)
1. An implantation pre-assembly system for an intraocular lens comprising an implantation system body, an implantation pushrod and an intraocular lens loading chamber;
the implantation system main body comprises a catheter chamber which is connected in sequence from the implantation direction, is used for the axial movement of the implantation push rod and is arranged in a penetrating manner, a loading bin chamber which is detachably connected with the intraocular lens loading bin, and an intraocular lens implantation chamber which is used for loading the intraocular lens loading bin into the eye; the diameter of the introducing cavity for folding or curling the artificial lens is reduced along the implantation direction, the outlet end of the introducing cavity is beveled, and a haptic deformation assembly which enables the front haptic and the rear haptic of the artificial lens to be folded or curled to the optical area in the pushing process and has an arc-shaped bulge structure is arranged at the inlet of the introducing cavity;
the implanting end of the implanting push rod is provided with an artificial lens clamping part with a fork-shaped structure, an included angle between the artificial lens clamping part and the central axis of the artificial lens loading bin is an acute angle, and a part of optical area and a rear loop of the artificial lens are positioned in a bayonet of the artificial lens clamping part;
the intraocular lens loading cartridge has posterior haptic placement sites and anterior haptic placement sites disposed sequentially along the implantation direction.
2. An intraocular lens implantation pre-assembly system according to claim 1, wherein said implantation pushrod is driven with a screw/straight pushing arrangement.
3. An intraocular lens implantation pre-assembly system according to claim 1 wherein said implantation pushrod has threads thereon that mate with a precession advancement structure.
4. An intraocular lens implantation pre-assembly system according to claim 1, wherein said implantation system body, implantation pusher and intraocular lens loading chamber have central axes coincident with each other and co-directional with the diameter of an intraocular lens loaded in the intraocular lens loading chamber in its deployed state.
5. An intraocular lens implantation pre-assembly system according to claim 1 wherein said catheter lumen is externally fitted with two symmetrical ear plates.
6. An intraocular lens implantation pre-assembly system according to claim 1 wherein said intraocular lens loading cartridge is of flat box-like configuration and has a through hole for passage of an implantation push rod at one end adjacent the catheter lumen and a stop clamp at the other end for passage of an intraocular lens in its deployed state.
7. An implantation pre-assembly system for an intraocular lens according to claim 1 wherein the implantation pushrod has axial and/or radial stop elements and the catheter chamber has axial and/or radial stop slots corresponding to the axial and/or radial stop elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223093508.XU CN219166769U (en) | 2022-11-22 | 2022-11-22 | Pre-implantation system for intraocular lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223093508.XU CN219166769U (en) | 2022-11-22 | 2022-11-22 | Pre-implantation system for intraocular lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219166769U true CN219166769U (en) | 2023-06-13 |
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ID=86666176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223093508.XU Active CN219166769U (en) | 2022-11-22 | 2022-11-22 | Pre-implantation system for intraocular lenses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219166769U (en) |
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- 2022-11-22 CN CN202223093508.XU patent/CN219166769U/en active Active
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