CN104414774A - Preset intraocular lens implanter - Google Patents
Preset intraocular lens implanter Download PDFInfo
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- CN104414774A CN104414774A CN201310381444.XA CN201310381444A CN104414774A CN 104414774 A CN104414774 A CN 104414774A CN 201310381444 A CN201310381444 A CN 201310381444A CN 104414774 A CN104414774 A CN 104414774A
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- intraocular lenses
- artificial intraocular
- intraocular lens
- artificial
- lenses
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Abstract
The invention relates to a preset intraocular lens implanter, comprising a main body including an intraocular lens bearing part at the front end and an intraocular lens preset on the intraocular lens bearing part, an implanting head connected with the front end of the main body and an injection driving mechanism connected with the rear end of the main body. The preset intraocular lens implanter is characterized in that the intraocular lens bearing part is provided with a pop-up structure for preventing the preset intraocular lens from moving to the implanting head before injection and a limiting component capable of restraining the preset intraocular lens to move in the vertical direction of the axial direction of the preset intraocular lens implanter. According to the preset intraocular lens implanter, the implantation of the intraocular lens can be finished only by a single operational step and the intraocular lens is simply restrained in the preset intraocular lens implanter and has rational performance.
Description
Technical field
The present invention relates to intraocular lens injector.More specifically, the present invention relates to a kind of easy and simple to handle and novel prepackage type intraocular lens injector of dependable performance.
Background technology
Artificial intraocular lenses is a kind of artificial lens, in cataract operation, is used for the technology of the natural artificial intraocular lenses replaced in the human eye becoming muddiness because of cataract conditions is extensively implemented by implantable artificial crystal.The form of artificial intraocular lenses, is normally made up of the button loop of the circular light department of the Chinese Academy of Sciences and periphery that are positioned at center.Because the material of processing artificial intraocular lenses is different, the rigid artificial intraocular lenses that artificial intraocular lenses is divided into optic to be formed by hard materials such as PMMA, and the soft artificial intraocular lens of the flexible material formation such as optic is by silicone elastomer, hydrogel, soft acrylic's fat.The artificial intraocular lenses be made up of soft material, is also often referred to as collapsible artificial intraocular lenses.
When using rigid artificial intraocular lenses, the operative incision of the implantable artificial crystal that cornea is outputed must be substantially identical with optic diameter width.And the artificial intraocular lenses be made up of soft material (being also often referred to as collapsible artificial intraocular lenses) can folding or curling reduce its area after implant ophthalmic by a less otch (general 2-3 millimeter).This folding or curling after artificial intraocular lenses enter eyes after can Automatic-expanding.
In order to reduce the infection risk after implant surgery, and alleviate the misery of patient, preferably from minimal incision * implantable artificial crystal, so current implant surgery trend preferably implants soft artificial intraocular lens.By opticator and the combination supporting button loop, flexible folding artificial intraocular lenses is divided into single type and three-member type usually.The flexible folding artificial intraocular lenses of single type, its opticator and support button loop are an entirety, are made up of same soft material.The flexible folding artificial intraocular lenses of three-member type, its opticator and support button loop first by parts processing, and then are connected into shape.
In order to soft artificial intraocular lens is implanted ophthalmic, need to use special intraocular lens injector tool, this utensil has the tubular passageway structural design that inner chamber designs and elongated that artificial intraocular lenses is folded.By the intraocular lens injector tool using this special, soft artificial intraocular lens can be implanted in human eye by the minimal incision * being less than 3 millimeters.
Soft artificial intraocular lens is implanted utensil and is divided into non-pre-iol cartridge type and two kinds, pre-iol cartridge type.Non-pre-iol cartridge type implantation device is made up of implant head and syringe two parts usually.Use non-pre-iol cartridge type implantation device implantable artificial crystal, need with tweezers, artificial intraocular lenses to be taken out from packing box, viscoelastic agent is injected in implant head, artificial intraocular lenses is put into implant head clamp, then the implant head of clamping artificial intraocular lenses is inserted in the draw-in groove of syringe front end, pushing syringe push rod shifts the front end of implant head onto artificial intraocular lenses, finally inserts the corneal incision opened in advance and artificial intraocular lenses is injected ophthalmic.The shortcoming of the method is: operating process is complicated, has the possibility of human operational error, easily folder bad artificial intraocular lenses, takes out artificial intraocular lenses easily cause bacteriological infection to implantation process from packing box.Based on the above-mentioned shortcoming of non-pre-iol cartridge type implantation device, be developed and in advance artificial intraocular lenses put into implantation device and carry out unitizing, sterilizing, store, the prepackage type intraocular lens injector of transport.
But existing prepackage type implantation device all needs at least two operating procedures just can complete whole implantation process.The product of what the existing prepackage type implantation device for single type soft artificial intraocular lens was more ripe have refined (HOYA) company of person of outstanding talent and ALCON company.CN 102307543A discloses a kind of preset-type intraocular lens inserting instrument of Tag Heuer S. A..US 7,156,854B2 discloses a kind of prepackage type intraocular lens injector of ALCON company.The prepackage type implantation device of this Liang Ge company all needs two operating procedures just can complete implantation action, the object of certain two steps is had nothing in common with each other, the object of first step of the implantation device of Tag Heuer S. A. is fastened with a rope, string, etc. after can suitably controlling artificial intraocular lenses, and first of the implantation device of ALCON company operating procedure stops the proal bridle of artificial intraocular lenses to remove.For the problem how retraining artificial intraocular lenses in implantation device, the design of Tag Heuer S. A. is comparatively difficult for placement artificial intraocular lenses, because prevent artificial intraocular lenses from then must reduce the gap of vertical axial constraint artificial intraocular lenses along implantation device axially-movable, the negative effect now brought is exactly that artificial intraocular lenses can be more difficult when being placed in implantation device, is even likely damaged to intraocular lens optic portion.The implantation device of ALCON is prevent artificial intraocular lenses from moving axially the cap structure design adding a constrained pillar of band as previously mentioned along implantation device, add an action on the one hand, soft artificial crystal is likely because contact with pillar for a long time on the other hand, contact position is bonded on pillar, thus position or the damage artificial intraocular lenses of artificial intraocular lenses when causing mentioning pillar, may be changed.Simultaneously when assembling implantation device, because lid is that last assembling is got on, if before assembling lid, position of intraocular lens has mobile and does not find, also may hurt artificial intraocular lenses during assembling lid.
Multiple operating procedures of existing prepackage type implantation device have strict sequencing simultaneously, if sequence of steps is incorrect, may damages artificial intraocular lenses or directly cause implantation process failure.The prepackage type implantation device part of certain existing design is the structural design measure preventing from the step of operator's mistake in from operating in implantation device structural design takes fool proof, but too much operating procedure is also the increase in the complexity of operation, the increase of step, result also in the increase of risk probability simultaneously.Simultaneously because artificial intraocular lenses is positioned in implantation device in advance, sterilizing together with implantation device system, packaging, store and transport, therefore how to ensure that artificial intraocular lenses is in restrained condition always and does not produce motion in implantation device, place artificial intraocular lenses to how to facilitate during implantation device and can not cause to artificial intraocular lenses the outbalance that damage just becomes simultaneously.
Summary of the invention
The present invention is based on the above problem that exists in prior art and propose, object is to provide a kind of the implantation needing single operation step just can complete artificial intraocular lenses, and artificial intraocular lenses retrains the simple and prepackage type intraocular lens injector of dependable performance in implantation device.
Further object of the present invention is to provide convenient in a kind of artificial intraocular lenses of placement to implantation device and can not causes the prepackage type intraocular lens injector of damage to artificial intraocular lenses.
Unless special circumstances have other to limit, otherwise following definition is applicable to the term that uses in this description.
Term definition
The term " optic " used in this application refers to artificial intraocular lenses has optical characteristics thus the part that can realize regulating the dioptric major function of artificial intraocular lenses.Specifically, the diameter of the optic of the artificial intraocular lenses used in the embodiment of the present invention is about 6 millimeters.
The term " button loop " used in this application refers to and is connected with intraocular lens optic portion, not only plays the effect in support of optical portion but also play the part of the effect contractility that the contraction of ciliary muscle and varicose produce being delivered to described optic.
The term " prepackage type intraocular lens injector axis " used in this application refers to the longitudinal centre line of this elongated prepackage type intraocular lens injector (as shown in fig. 1).
In this application use and represent that the term " front " of position relation and " afterwards " they are for the relative position relation when injecting artificial intraocular lenses on prepackage type intraocular lens injector axis.Such as " front button loop ", " afterwards fasten with a rope, string, etc. " be artificial intraocular lenses relative to human eye along prepackage type intraocular lens injector axis the direction of motion for.Such as, in implantation process, on implantation device axis direction, before " front button loop " is positioned at " fastening with a rope, string, etc. afterwards ", closer to the position of human eye.
The term " lower optical surface " used in this application is for the upper optical surface in the intraocular lens optic portion of prepackage, and the lower optical surface in the intraocular lens optic portion of prepackage refers to that surface contacted with the carrying shell fragment of body front end artificial intraocular lenses supporting part.
In addition, unless otherwise defined, otherwise the implication of all scientific and technical terminologies used herein usually to understand with those skilled in the art in the invention be the same.If conflict occurs, be as the criterion with this description and the definition that comprises thereof.
For the design means of dealing with problems
What the present invention relates to is a kind of prepackage type intraocular lens injector, comprise the supporting part placing artificial intraocular lenses, make the transition part that artificial intraocular lenses is out of shape, the spray nozzle part of release artificial intraocular lenses, artificial intraocular lenses is released from supporting part and passes through the transition part that artificial intraocular lenses is out of shape, the final parts of pushing pin artificial intraocular lenses released from spray nozzle part, also comprise and in motor process, produce to artificial intraocular lenses the tabletting portion making artificial intraocular lenses's turnup to lower compression.The feature of prepackage type intraocular lens injector of the present invention is, place the supporting part of artificial intraocular lenses and be provided with the upspring structure preventing artificial intraocular lenses from moving along axis to spray nozzle part, facilitate the placement of artificial intraocular lenses simultaneously and the tabletting that artificial intraocular lenses move perpendicular to prepackage type intraocular lens injector axis direction can be retrained after placing artificial intraocular lenses and design.
Specifically, the present invention relates to the content of following many aspects:
1. a prepackage type intraocular lens injector, described prepackage type intraocular lens injector comprises:
Main body, described main body comprises the artificial intraocular lenses's supporting part being positioned at its front end and the artificial intraocular lenses be contained in advance on described artificial intraocular lenses's supporting part;
The implant head be connected with described body front end; With
What be connected with described body rear injects driving mechanism,
It is characterized in that,
Described artificial intraocular lenses's supporting part is provided with the artificial intraocular lenses that can prevent from pre-installing the upspring structure of the forward direction implant head motion carrying out injecting and the artificial intraocular lenses that can retrain prepackage perpendicular to the limit component that prepackage type intraocular lens injector axis direction moves.
2. the prepackage type intraocular lens injector as described in aspect 1, is characterized in that: described limit component is collapsible limit component.
3. the prepackage type intraocular lens injector as described in aspect 2, is characterized in that: described collapsible limit component is one or more collapsible banking stops.
4. the prepackage type intraocular lens injector as described in aspect 1, is characterized in that: described in inject that driving mechanism comprises installation push rod on the body, the artificial intraocular lenses for the artificial intraocular lenses injecting prepackage that is connected with described push rod front end pushes pin and be connected with described push rod tail end inject handle.
5. the prepackage type intraocular lens injector as described in aspect 4, is characterized in that: described prepackage type intraocular lens injector comprises the rear button loop of the artificial intraocular lenses that can retrain prepackage further at the rear button loop limiting component perpendicular to the position on prepackage type intraocular lens injector axis direction.
6. the prepackage type intraocular lens injector as described in aspect 5, is characterized in that: described rear button loop limiting component is to push pin the tabletting of reverses direction of fastening with a rope, string, etc. after the restriction artificial intraocular lenses that moves with artificial intraocular lenses when injecting artificial intraocular lenses.
7. the prepackage type intraocular lens injector as described in aspect 4, is characterized in that: described in inject handle be serpentine pipe.
8. the prepackage type intraocular lens injector as described in aspect 1, is characterized in that: the integrally formed or described upspring structure of remainder of described upspring structure and described artificial intraocular lenses's supporting part and the remainder of described artificial intraocular lenses's supporting part link together via linkage section.
9. the prepackage type intraocular lens injector as described in aspect 8, is characterized in that: described upspring structure is the carrying shell fragment of artificial intraocular lenses for carrying prepackage or the thin plate that is connected with spring bottom it.
10. the prepackage type intraocular lens injector as described in aspect 1, is characterized in that: the rear button loop guiding surface that after described artificial intraocular lenses's supporting part is provided with the artificial intraocular lenses for the guiding prepackage when injecting, button loop moves to above intraocular lens optic face.
The present invention has following beneficial effect especially:
According to the present invention, due to what be arranged at artificial intraocular lenses's supporting part left and right sides, perpendicular to prepackage type intraocular lens injector axis direction two the collapsible tablettings retrained that move, open mode is in artificial intraocular lenses when placing in artificial intraocular lenses to implantation device, making to place artificial intraocular lenses can be easily, artificial intraocular lenses can not be damaged, push down artificial intraocular lenses after being folded by collapsible tabletting after artificial intraocular lenses being placed into supporting part thus limit the possibility of artificial intraocular lenses perpendicular to implantation device axial-movement, simultaneously owing to there being the upspring structure design that can be depressed in artificial intraocular lenses's supporting part front end, thus artificial intraocular lenses moves along implantation device axis direction and also suffers restraints, but when implantation process starts, can upspring structure be forced down owing to producing downward power to its structure of bullet when artificial intraocular lenses moves to spray nozzle part along implantation device axis direction under the effect of pushing pin thus artificial intraocular lenses can be moved to spray nozzle part along axis direction smoothly.And on artificial intraocular lenses pushes pin, there is notch to design, the tabletting preventing intraocular lens optic portion from upwards digging can be driven to move together, and after motion certain distance, tabletting to be moved the action finally completing and artificial intraocular lenses released from spray nozzle part in the axial direction by stop constrained motion thus make independent continuation of pushing pin.In whole implantation process, operator only needs to carry out simple serpentine pipe rotation process, and without the need to other action.
Characterize advantage of the present invention and novel feature specifically to indicate being attached to herein and forming in claims of a part herein.But, in order to understand the present invention, its advantage better and apply by it target reached, with reference to the accompanying drawing of formation this paper another part and specific descriptions below, should wherein illustrate and describe one or more preferred embodiment of the present invention.
Accompanying drawing explanation
Describe the present invention below in conjunction with Figure of description.Figure of description might not be carry out drawing in strict accordance with ratio and Figure of description is only schematic diagram.In the drawings in the descriptive section of the present application, same or analogous drawing reference numeral is used to represent same or analogous element.
Fig. 1 is the integrally-built perspective view schematically showing prepackage type intraocular lens injector of the present invention.
Fig. 2 is the decomposition diagram of the structure schematically showing prepackage type intraocular lens injector of the present invention.
Fig. 3 schematically shows close up perspective view when prepackage type intraocular lens injector body front end artificial intraocular lenses supporting part of the present invention not placing artificial intraocular lenses (collapsible banking stop be in and do not turn up before state).
Fig. 4 is the close up perspective view (collapsible banking stop is in the state turned up) schematically showing another angle display when prepackage type intraocular lens injector body front end artificial intraocular lenses supporting part of the present invention not placing artificial intraocular lenses.
Fig. 5 a is the close up perspective view after schematically showing prepackage type intraocular lens injector body front end artificial intraocular lenses supporting part of the present invention assembling artificial intraocular lenses, the state before collapsible banking stop shown in figure is in and does not turn up.
Fig. 5 b is the close up perspective view after schematically showing prepackage type intraocular lens injector body front end artificial intraocular lenses supporting part of the present invention assembling artificial intraocular lenses, and shown in figure, collapsible banking stop is in the state turned up.
Fig. 6 be the artificial intraocular lenses schematically showing prepackage type intraocular lens injector of the present invention push pin vertically moving contact to the close up perspective view (being taken away for convenience of display artificial intraocular lenses tabletting) when rear button loop being folded to above intraocular lens optic portion during intraocular lens optic portion.
Fig. 7 schematically shows the front projection figure that artificial intraocular lenses is placed in body front end artificial intraocular lenses supporting part, and shown in figure, collapsible banking stop is in the state turned up.
Fig. 8 schematically shows the zoomed-in view of A-A cross-section structure in Fig. 7.
Fig. 9 schematically shows the close up perspective view that artificial intraocular lenses in prepackage type intraocular lens injector depresses the spacing tabletting structure of artificial intraocular lenses vertically in motor process under artificial intraocular lenses's effect of pushing pin.
Figure 10 is the zoomed-in view schematically showing B-B cross-section structure in Fig. 9.
Figure 11 schematically shows artificial intraocular lenses to push pin head enlarged perspective.
Figure 12 a is the perspective view in the front schematically showing artificial intraocular lenses's tabletting.
Figure 12 b is the perspective view at the back side schematically showing artificial intraocular lenses's tabletting.
Figure 13 schematically shows artificial intraocular lenses to push pin the perspective view be assembled together with artificial intraocular lenses's tabletting.
Figure 13 a schematically shows artificial intraocular lenses to push pin the close up perspective view be assembled together with artificial intraocular lenses's tabletting.
Figure 14 a and Figure 14 b be schematically show carrying shell fragment and body front end artificial intraocular lenses supporting part be two parts, by the assembling perspective view be connected together together.
Figure 15 is the structural perspective of the axial carrying block schematically shown according to another embodiment of the present invention.
Figure 16 is the back side assembly structure perspective view schematically showing axial carrying block.
Figure 16 a schematically shows the composition workpiece of the back side assembly structure of axial carrying block by the form of decomposition view.
Figure 17 is the schematic perspective view of the folding banking stop schematically shown according to still another embodiment of the invention, and wherein artificial intraocular lenses is not loaded.
Figure 17 a is the front projection figure schematically showing the folding banking stop shown in Figure 17.
Figure 18 is the perspective view schematically showing structure shown in the Figure 17 after loading artificial intraocular lenses.
Figure 18 a is the front projection figure schematically showing the folding banking stop shown in Figure 18.
Figure 19 be schematically show load plug together with implant head after artificial intraocular lenses before the perspective view of structure shown in Figure 17 under state.
Figure 20 schematically shows the perspective view (not shown implant head) loading structure shown in the Figure 17 under the state after plugging together with implant head after artificial intraocular lenses.
Figure 20 a is the front projection figure schematically showing structure shown in Figure 20.
Figure 21 is the perspective view of the blocking mechanism schematically showing artificial intraocular lenses's tabletting in prepackage type intraocular lens injector of the present invention.
Figure 22 is the profile intercepting blocking mechanism shown in Figure 21 of obtaining along the section C-C in Figure 21.
Figure 23 a and Figure 23 b schematically shows the perspective view of the another embodiment of main body 3 front end artificial intraocular lenses's supporting part 11 of prepackage type intraocular lens injector of the present invention respectively from different viewing angle, the front end of main body 3 shown in described figure artificial intraocular lenses's supporting part 11 does not place artificial intraocular lenses.
Parts and reference numerals list
| 1 | Prepackage type intraocular lens injector |
| 2 | Implant head |
| 2a | Implant head nozzle |
| 3 | Main body |
| 3a | External screw thread |
| 4 | Serpentine pipe |
| 5 | Artificial intraocular lenses |
| 6 | Intraocular lens optic portion |
| 7a | Button loop before artificial intraocular lenses |
| 7b | Fasten with a rope, string, etc. after artificial intraocular lenses |
| 8 | Artificial intraocular lenses's tabletting |
| 9 | Artificial intraocular lenses pushes pin |
| 10 | Push rod |
| 11 | Body front end artificial intraocular lenses supporting part |
| 12 | Body rear |
| 13 | Y-direction of fastening with a rope, string, etc. after artificial intraocular lenses first retrains |
| 14 | Y-direction of fastening with a rope, string, etc. after artificial intraocular lenses second retrains |
| 15 | Collapsible banking stop |
| 16 | Carrying shell fragment |
| 16a | Shell fragment linkage section |
| 16b | Shell fragment supporting part |
| 17 | Artificial intraocular lenses's loading end |
| 17a | Artificial intraocular lenses's loading end latter half of |
| 18 | To fasten with a rope, string, etc. after artificial intraocular lenses spigot surface |
| 19 | Artificial intraocular lenses pushes pin groove |
| 20 | Artificial intraocular lenses's tabletting lobe |
| 21 | Split type carrying shell fragment |
| 22 | Split type carrier block |
| 22a | Split type carrier block guide table |
| 23 | Spring |
| 24 | Carrier block gathering sill |
| 25 | First folding banking stop |
| 26 | Second folding banking stop |
| 27 | Artificial intraocular lenses's tabletting stops platform |
| 28 | Artificial intraocular lenses's tabletting boss |
| 29 | Fixing limit component |
Detailed description of the invention
Prepackage type intraocular lens injector of the present invention comprises: main body, and described main body comprises the artificial intraocular lenses's supporting part being positioned at its front end and the artificial intraocular lenses be contained in advance on described artificial intraocular lenses's supporting part; The implant head be connected with described body front end; And to be connected with described body rear inject driving mechanism.Artificial intraocular lenses's supporting part of the present invention is provided with the artificial intraocular lenses that can prevent from pre-installing the upspring structure of the forward direction implant head motion carrying out injecting and the artificial intraocular lenses that can retrain prepackage perpendicular to the limit component that prepackage type intraocular lens injector axis direction moves.Described limit component can be collapsible limit component, also can be fixing limit component.Described collapsible limit component can be one or more collapsible banking stops.Described inject that driving mechanism comprises installation push rod on the body, the artificial intraocular lenses for the artificial intraocular lenses injecting prepackage that is connected with described push rod front end pushes pin and be connected with described push rod tail end inject handle.Described prepackage type intraocular lens injector can comprise the rear button loop of the artificial intraocular lenses that can retrain prepackage further at the rear button loop limiting component perpendicular to the position on prepackage type intraocular lens injector axis direction.Described rear button loop limiting component can be to push pin the tabletting of reverses direction of fastening with a rope, string, etc. after the restriction artificial intraocular lenses that moves with artificial intraocular lenses when injecting artificial intraocular lenses.Described handle of injecting can be serpentine pipe.Described upspring structure can link together via linkage section with the remainder of described artificial intraocular lenses's supporting part with the integrally formed or described upspring structure of the remainder of described artificial intraocular lenses's supporting part.Described upspring structure can be the carrying shell fragment of artificial intraocular lenses for carrying prepackage or the thin plate that is connected with spring bottom it.The rear button loop guiding surface that after described artificial intraocular lenses's supporting part can being provided with the artificial intraocular lenses for the guiding prepackage when injecting, button loop moves to above intraocular lens optic face.Described rear button loop guiding surface can be arranged on described upspring structure below and be connected with described upspring structure.
Below in conjunction with Figure of description, multiple embodiment of the present invention is described in detail.
1. the first embodiment
Fig. 1 schematically shows the integrally-built perspective view of prepackage type intraocular lens injector 1 of the present invention.As shown in fig. 1, prepackage type intraocular lens injector 1 comprises: main body 3, the implant head 2 be combined together with described main body 3 front end grafting, and the serpentine pipe 4 be connected with described main body 3 rear end.It is inner that artificial intraocular lenses 5 is positioned over main body 3 in advance, and this artificial intraocular lenses 5 has optic 6 and is arranged at a pair button loop at described optic 6 edge and (comprises front button loop 7a and rear button loop 7b, as shown in Figure 2).
Fig. 2 demonstrates the building block of prepackage type intraocular lens injector 1 clearly by the mode of decomposition view.Main body 3 comprises the artificial intraocular lenses's supporting part 11 being positioned at its front end and the body rear 12 be connected with serpentine pipe 4.Artificial intraocular lenses 5 is positioned on artificial intraocular lenses's supporting part 11 of described main body 3 front end in advance, limits its motion by the structural constraint of artificial intraocular lenses's supporting part 11.The artificial intraocular lenses's supporting part 11 being arranged in main body 3 front end is plugged on implant head 2, achieve the connection of main body 3 and implant head 2 on the one hand, therefore the artificial intraocular lenses 5 be arranged on body front end artificial intraocular lenses supporting part 11 is also configured at the inside of implantation device 1 on the other hand.Fig. 2 also show the building block of injecting driving mechanism of prepackage type intraocular lens injector 1: be installed on the push rod 10 in main body 3, the artificial intraocular lenses be connected with push rod 10 front end 10a pushes pin 9, the serpentine pipe 4 be connected with push rod 10 tail end 10b, freely can rotate around serpentine pipe central axis after serpentine pipe 4 is connected with push rod 10, the female thread of serpentine pipe 4 inside cooperatively interacts with the external screw thread 3a being arranged at main body rear 12 outer surface and can realize the reciprocating motion of serpentine pipe 4 on main body 3 axis direction simultaneously.Due to serpentine pipe 4, push rod 10, artificial intraocular lenses pushes pin after 9 assemblings and links together, and therefore serpentine pipe 4 can realize artificial intraocular lenses along the reciprocating motion of main body 3 axis direction and push pin 9 along the reciprocating motion in main body axis direction, thus realizes artificial intraocular lenses and to push pin 9 actions of injecting artificial intraocular lenses 5.Fig. 2 shows another parts artificial intraocular lenses tabletting 8 of main body 3 inside simultaneously.When starting to inject artificial intraocular lenses, artificial intraocular lenses pushes pin and 9 is assembled together with artificial intraocular lenses's tabletting 8 can be realized being synchronized with the movement by the push pin notch of 9 front ends of artificial intraocular lenses, artificial intraocular lenses pushes pin and 9 to move from initial position along main body 3 axis direction to implant head 2 head artificial intraocular lenses nozzle 2a direction with artificial intraocular lenses's tabletting 8, after moving to setpoint distance, by main body 3 region of interest, artificial intraocular lenses's tabletting 8 is stopped that limiting it continues motion, and now artificial intraocular lenses pushes pin and 9 can depart from artificial intraocular lenses's tabletting 8 and continue to move in the axial direction alone.In the operating process of whole prepackage type intraocular lens injector, operator only needs this action of rotary helix pipe thin can finally realize artificial intraocular lenses by the assembly relation of parts to push pin along implantation device axis direction and move.Artificial intraocular lenses push pin 9 will complete in the motor process in 2a direction, implant head artificial intraocular lenses nozzle place along main body 3 axis direction turn over artificial intraocular lenses after to fasten with a rope, string, etc. 7a, artificial intraocular lenses's supporting part 11 that promotion artificial intraocular lenses 5 departs from body front end enters implant head 2 inside, by the profile design of implant head 2 inside, artificial intraocular lenses 5 bends completing folded roll the process reducing its volume gradually in implant head 2 inside, and is discharged into outside eventually through the artificial intraocular lenses's nozzle place 2a being positioned at implant head 2 front end thus completes artificial intraocular lenses's bolus infusion processes of whole implantation device.
In the following description, be defined as X-direction (i.e. the direction of prepackage type intraocular lens injector axis) towards the aspect of implant head 2 along main body 3 axis direction from body rear, the direction vertical with X-direction is defined as Y-direction, see Fig. 3.
Next the concrete structure of body front end artificial intraocular lenses supporting part 11 is illustrated.Fig. 3 schematically shows the close up perspective view (collapsible banking stop 15 is in the state before not turning up) when prepackage type intraocular lens injector main body 3 front end of the present invention artificial intraocular lenses's supporting part 11 not placing artificial intraocular lenses.Fig. 4 is the close up perspective view (collapsible banking stop 15 is in the state turned up) schematically showing another angle display when prepackage type intraocular lens injector main body 3 front end of the present invention artificial intraocular lenses's supporting part 11 not placing artificial intraocular lenses.Artificial intraocular lenses's supporting part 11 of main body 3 front end comprises the artificial intraocular lenses's loading end 17 supporting artificial intraocular lenses 5, the lower optical surface shape of the curved surface features of the latter half of 17a of artificial intraocular lenses's loading end 17 and the optic 6 of artificial intraocular lenses 5 matches, effectively can support the lower optical surface of the rear button loop side of artificial intraocular lenses 5 optic 6, body front end artificial intraocular lenses supporting part 11 also comprises carrying shell fragment 16, this carrying shell fragment 16 is structure as a whole with artificial intraocular lenses's supporting part 11, (material can be polypropylene for medical article to use identical medical-grade plastics material, the general plastic glue materials such as medical polyethylene), carrying shell fragment 16 is made up of shell fragment linkage section 16a and shell fragment supporting part 16b, shell fragment linkage section 16a thickness is no more than 1 millimeter and is responsible for the shell fragment supporting part 16b of carrying shell fragment 16 to be connected with body front end artificial intraocular lenses supporting part 11, the thickness being simultaneously less than 1 millimeter also ensure that linkage section 16a has certain pliability, the skew carrying shell fragment generation Y-direction can be made when the shell fragment supporting part 16b of carrying shell fragment 16 is stressed, carrying shell fragment 16 shell fragment supporting part 16b be positioned at artificial intraocular lenses 5 optic of prepackage under optical surface cross Qian Pan side, center, shell fragment supporting part 16b and artificial intraocular lenses's loading end 17 are combined together the lower optical surface that can support whole artificial intraocular lenses 5, because under side of fastening with a rope, string, etc. before carrying the shell fragment supporting part 16b of shell fragment 16 and artificial intraocular lenses 5 optic, optical surface shape matches, so this contact surface is more more raised on the direction of-Y away from center, intraocular lens optic face in X-direction, thus to play before injecting constraint and prevent artificial intraocular lenses's proal effect in X direction.Fig. 3, the shell fragment supporting part 16b of the carrying shell fragment 16 of Fig. 4 display does not exceed the optic diameter of artificial intraocular lenses 5 in X-direction, actually be not limited to this, carrying shell fragment in the X direction can according to designing the optic diameter needing to determine whether to need to exceed artificial intraocular lenses 5, Fig. 3, artificial intraocular lenses's supporting part 16b of the carrying shell fragment 16 of Fig. 4 display just contacts with the bottom surface of side of fastening with a rope, string, etc. before the optic of artificial intraocular lenses 5 in the-y direction, reality can be not limited to this, also the loading end of carrying shell fragment 16 can be needed to continue to extend to-Y-direction to support intraocular lens optic portion edge facets according to design, the surface simultaneously carrying shell fragment 16 is smooth arc surface transition, can ensure that artificial intraocular lenses 5 is injecting in the process starting rear disengaging carrying shell fragment 16 and can not produce the problems such as slide mark on intraocular lens optic face like this.Artificial intraocular lenses's supporting part 11 of main body 3 front end also comprises the collapsible banking stop structure 15 retraining artificial intraocular lenses 5 and move in the Y direction, because aforesaid artificial intraocular lenses's loading end 17, carrying shell fragment 16 can provide support the effect that artificial intraocular lenses 5 and constraint artificial intraocular lenses 5 moves in X-direction, think and retrain the artificial intraocular lenses 5 optic motion design in the Y direction structure of collapsible banking stop 15.Collapsible banking stop 15 is integral type structural design with intraocular lens optic supporting part 11.What Fig. 3 showed is that collapsible banking stop 15 is in initial non-folded state.Fig. 4 display be collapsible banking stop 15 folding after state.Collapsible banking stop 15 turns down optic 6 motion in the Y direction that is rear and artificial intraocular lenses's loading end 17 1 active constraint artificial intraocular lenses 5.After some other feature of body front end artificial intraocular lenses supporting part 11 also comprises constraint artificial intraocular lenses 5 button loop 7a position in the Y direction position limiting structure 13,14(artificial intraocular lenses after Y-direction first of fastening with a rope, string, etc. to retrain and Y-direction second of fastening with a rope, string, etc. after artificial intraocular lenses retrains).The 7a that fastens with a rope, string, etc. after making artificial intraocular lenses pushes pin 9 these processes of optic edge of moving in X direction from the rear 7a of button loop of contact artificial intraocular lenses 5 to the rear button loop side of contact artificial intraocular lenses 5 turns down the guiding pits rampway structure 18 moving to optical surface in intraocular lens optic portion 6.These features together constitute body front end artificial intraocular lenses supporting part 11 above.Thus realize the placement of artificial intraocular lenses, position of intraocular lens retrains, rear button loop turns over button loop, and artificial intraocular lenses pushes pin and carries shell fragment 6 in X direction behind movement progress intraocular lens optic portion and resilient bias occurs make artificial intraocular lenses depart from body front end artificial intraocular lenses loading end smoothly to enter implant head inside and wait a series of actions process.
Fig. 5 a be schematically show prepackage type intraocular lens injector body front end artificial intraocular lenses supporting part 11 of the present invention assemble artificial intraocular lenses 5 after close up perspective view, shown in figure, collapsible banking stop 15 is in the state before not turning up.Fig. 5 b be schematically show prepackage type intraocular lens injector body front end artificial intraocular lenses supporting part 11 of the present invention assemble artificial intraocular lenses 5 after close up perspective view, shown in figure, collapsible banking stop 15 is in the state turned up.Can know from figure and find out, be positioned at the collapsible banking stop 15 of artificial intraocular lenses's supporting part front end 11 initial time be in non-folded state, artificial intraocular lenses 5 can be positioned on artificial intraocular lenses's supporting part 11 along Y-direction by such operator freely.After artificial intraocular lenses 5 is in place, the upset of collapsible banking stop 15 folded over, the optic that the space that the folding banking stop 15 after upset is folding and artificial intraocular lenses's loading end are formed just can retrain artificial intraocular lenses 5 motion is in the Y direction to reach the damage avoiding to cause artificial intraocular lenses in put procedure and simple to operation.Collapsible banking stop 15 and artificial intraocular lenses's supporting part Integral design can be found out from Fig. 5 a and Fig. 5 b, and the quantity of collapsible banking stop 15 is 2, actual can be one or more according to the employing quantity that needs of design, one or split design, relative artificial intraocular lenses 5 optic 6 centrage symmetry or asymmetric arrangement.
Present artificial intraocular lenses 5 to be positioned in artificial intraocular lenses's supporting part 11 and to be in restrained condition, by realizing with implant head 2 grafting the inside that artificial intraocular lenses 5 is placed into implantation device 1.Fig. 6 (not showing implant head 2) show the artificial intraocular lenses 5 that is positioned over body front end artificial intraocular lenses supporting part 11 artificial intraocular lenses push pin 9 move to 6 edge, intraocular lens optic portion in X direction time artificial intraocular lenses time after fasten with a rope, string, etc. 7a be turned to optical surface in intraocular lens optic portion 6 time state.Artificial intraocular lenses pushes pin 9 along in the 2a motor process of X axis implant head 2 nozzle position, first the rear button loop 7a of artificial intraocular lenses can be touched, artificial intraocular lenses pushes pin 9 continuation campaigns, due to the design of spigot surface 18 of fastening with a rope, string, etc. after body front end artificial intraocular lenses, after making artificial intraocular lenses, button loop is by after the power of X-direction, must move along rear button loop spigot surface 18, in addition artificial intraocular lenses pushes pin 9 and artificial intraocular lenses's tabletting 8 barrier effect in the Y direction, when artificial intraocular lenses push pin 9 continue the edge moving to intraocular lens optic portion 6 time, the 7a that fastens with a rope, string, etc. after artificial intraocular lenses will be positioned at the top of the upper optical surface of artificial intraocular lenses.Artificial intraocular lenses push pin touch artificial intraocular lenses after fasten with a rope, string, etc. 7a and along continue move in X direction time, intraocular lens optic portion 6 is due to the effect of contraction of collapsible banking stop 15, cannot move in the Y direction, if but rear button loop 7a is before being folded to intraocular lens optic face upper surface along rear button loop spigot surface, intraocular lens optic portion 5 has started to move in X direction, then the process of whole Intraocular implantation also can be failed.How to avoid this risk? this carrying shell fragment 16 discussed before just needing again to mention is in the X direction to the effect of contraction of artificial intraocular lenses.Because the material of artificial intraocular lenses is soft materials and fastens with a rope, string, etc. very tiny after artificial intraocular lenses, the power that 9 turnovers are fastened with a rope, string, etc. afterwards so artificial intraocular lenses pushes pin is very little.The binding function of carrying shell fragment 16 can ensure that intraocular lens optic portion does not move in X direction in the process of turning over button loop.But when artificial intraocular lenses push pin 9 complete turn over after after button loop action movement to edge, intraocular lens optic portion, artificial intraocular lenses pushes pin and continues the action that motion in X direction realizes artificial intraocular lenses 5 to inject implant head 2 inside, but hinder the motion in intraocular lens optic portion after carrying shell fragment 16? thickness due to the linkage section 16a carrying shell fragment 16 is no more than 1 millimeter and is plastic cement material, make intraocular lens optic portion 6 artificial intraocular lenses push pin 9 thrust under can produce a downward pressure to carrying shell fragment, carrying shell fragment is depressed thus artificial intraocular lenses 6 can continue to move in X direction.Fig. 7 schematically shows the front projection figure that artificial intraocular lenses 5 is placed in body front end artificial intraocular lenses supporting part 11, and shown in figure, collapsible banking stop 15 is in the state turned up.Fig. 8 schematically shows the zoomed-in view of A-A cross-section structure in Fig. 7.From Fig. 8, can be clearly seen that spacing tabletting 16 is in the state of upspringing be not depressed when artificial intraocular lenses 5 is placed on body front end artificial intraocular lenses supporting part 11, thus artificial intraocular lenses 5 can be stoped to move along X-axis line direction to nozzle direction, implant head 2 front end.Fig. 9 be schematically show artificial intraocular lenses 5 in prepackage type intraocular lens injector optic 6 under artificial intraocular lenses pushes pin 9 effects along the close up perspective view depressing the spacing tabletting structure of artificial intraocular lenses in X-motion process.Figure 10 is the zoomed-in view schematically showing B-B cross-section structure in Fig. 9.Can be clear that artificial intraocular lenses 5 oppresses spacing tabletting structure 16 and makes it to be in the state be depressed in motor process by Figure 10, artificial intraocular lenses 5 can move along implantation device X-direction to nozzle place, implant head 2 front end smoothly in this case.
Figure 11 schematically show artificial intraocular lenses push pin 9 the enlarged perspective of head.Figure 12 a schematically shows the perspective view in the front of artificial intraocular lenses's tabletting 8.Figure 12 b schematically shows the perspective view at the back side of artificial intraocular lenses's tabletting 8.As seen from the figure, artificial intraocular lenses push pin 9 front end have two draw-in grooves, by these two draw-in grooves, artificial intraocular lenses is pushed pin 9 to be assembled together with two bulge-structures of artificial intraocular lenses's tabletting 8, in a free state, two parts can move together, but when artificial intraocular lenses's tabletting 8 be subject in motor process stop cannot continue motion time, artificial intraocular lenses pushes pin and 9 can depart from artificial intraocular lenses's tabletting 8, continues the whole course of action having travelled forward to inject artificial intraocular lenses 5 along X-axis.Figure 13 schematically shows artificial intraocular lenses to push pin and 9 to be assembled together the perspective view of (under being in connection status) with artificial intraocular lenses's tabletting 8.Figure 13 a schematically shows artificial intraocular lenses to push pin 9 close up perspective view be assembled together with artificial intraocular lenses's tabletting 8.Clearly can find out that artificial intraocular lenses pushes pin 9 with artificial intraocular lenses's tabletting 8 by the protruding state linked together with draw-in groove by enlarged drawing.
2. the second embodiment
Carrying shell fragment 16 also can be independent parts.Figure 14 a and Figure 14 b is that to schematically show carrying shell fragment 16 and body front end artificial intraocular lenses supporting part 11 be two independent parts, by the assembling perspective view be connected together together.Can see by this figure: spacing tabletting 21 is as independent parts, linked together by the snap action of rear end buckle and body front end artificial intraocular lenses supporting part 11, Figure 14 b shows the annexation of split type carrying shell fragment 21 and body front end artificial intraocular lenses supporting part 11 by Section View.
Figure 17 is the schematic perspective view of the folding banking stop 15 schematically shown according to a second embodiment of the present invention, and wherein artificial intraocular lenses is not loaded.Figure 17 a is the front projection figure schematically showing the folding banking stop shown in Figure 17.Figure 17 and Figure 17 a shows other foldable form of collapsible banking stop 15, collapsible banking stop needs to can be designed as the form as the first folding banking stop 25 according to design, also can be designed as the form as the second folding banking stop 26, what show in Figure 17 and Figure 17 a is before the folding banking stop 26 of the first folding banking stop 25, second does not fold and the state of body front end artificial intraocular lenses supporting part 11 unloaded artificial intraocular lenses.
Figure 18 is the perspective view schematically showing structure shown in the Figure 17 after loading artificial intraocular lenses 5.Figure 18 a is the front projection figure schematically showing the folding banking stop shown in Figure 18.Show in Figure 18 and Figure 18 a be the folding banking stop 26 of the first folding banking stop 25, second folding before but body front end artificial intraocular lenses supporting part 11 has loaded artificial intraocular lenses 5 time state.
Figure 19 shows after body front end artificial intraocular lenses supporting part 11 loads artificial intraocular lenses 5, state before needing to install with implant head 2, if the form as shown in the first folding banking stop 25, then need before together with being loaded in implant head 2, first folding banking stop 25 to be turned, if the form as shown in the second folding banking stop 26, then direct and implant head 2 plugs together and installs.Gathering sill in implant head 2 can put in place folding for the second folding banking stop 26 automatically plugging together in process.
Figure 20 be schematically show load after artificial intraocular lenses 5 and implant head 2 plug together after state under Figure 17 shown in the perspective view (not shown implant head) of structure.Figure 20 a is the front projection figure schematically showing structure shown in Figure 20.Show in Figure 20 and Figure 20 a for body front end artificial intraocular lenses supporting part 11 load plug together with implant head 2 after artificial intraocular lenses 5 after the first folding banking stop 25 and the second folding banking stop 26 fold the state after putting in place.
Figure 21 is the perspective view of the blocking mechanism schematically showing artificial intraocular lenses's tabletting in prepackage type intraocular lens injector of the present invention.Figure 22 is the profile intercepting blocking mechanism shown in Figure 21 of obtaining along the section C-C in Figure 21.When artificial intraocular lenses's 9 drive artificial intraocular lenses tablettings 8 of pushing pin travel forward setpoint distance together, by by artificial intraocular lenses's tabletting of prepackage type intraocular lens injector body interior, the boss 28 of artificial intraocular lenses's tabletting 8 stops that platform 27 stops, thus restriction artificial intraocular lenses tabletting continues to push pin with artificial intraocular lenses to move forward, result causes artificial intraocular lenses to push pin 9 being separated with artificial intraocular lenses's tabletting 8, thus artificial intraocular lenses is pushed pin 9 to move forward alone.
3. the 3rd embodiment
Figure 15, Figure 16 show front and the back side assembled view of axial carrying block according to the third embodiment of the invention.
The assembling parts of this axial carrying block more clearly can be found out from Figure 16, it is made up of split type carrier block 22 and spring 23, spring 23 is assembled in the hole of split type carrier block 22, axial carrying block 22 can be moved along Y direction of principal axis under the action of the spring, guide protrusions 22a on axial carrying block 22 is assemblied in the carrier block gathering sill 24 at the body front end artificial intraocular lenses supporting part back side, makes the X-direction position of axial carrying block 22 suffer restraints fixing.In this, structure can realize as the aforementioned first equally, the function of the carrying shell fragment 16 described in the second embodiment.
4. the 4th embodiment
Figure 23 a and Figure 23 b schematically shows the perspective view of the another embodiment of main body 3 front end artificial intraocular lenses's supporting part 11 of prepackage type intraocular lens injector 1 of the present invention respectively from different viewing angle.Can see from Figure 23 a and Figure 23 b: artificial intraocular lenses's supporting part 11 of main body 3 front end be provided with can retrain prepackage artificial intraocular lenses at the fixing limit component 29 moved perpendicular to prepackage type intraocular lens injector axis direction.Described fixing limit component 29 can be one or more according to actual needs.Described fixing limit component 29 and intraocular lens optic supporting part 11 can be one or also can be split but be fixed to one another to link together.
Embodiment is above only illustrative rather than restrictive.Therefore, when not departing from invention disclosed herein design, those skilled in the art can modify to above-described embodiment or change.Therefore, protection scope of the present invention is only limited by the scope of appended claims.
Claims (10)
1. a prepackage type intraocular lens injector (1), described prepackage type intraocular lens injector comprises:
Main body (3), described main body comprises the artificial intraocular lenses's supporting part (11) being positioned at its front end and the artificial intraocular lenses (5) be contained in advance on described artificial intraocular lenses's supporting part;
The implant head (2) be connected with described body front end; With
What be connected with described body rear injects driving mechanism,
It is characterized in that,
Described artificial intraocular lenses's supporting part (11) is provided with the upspring structure that the artificial intraocular lenses (5) that can prevent from pre-installing moves at the forward direction implant head (2) carrying out injecting and the artificial intraocular lenses that can retrain prepackage perpendicular to the limit component that prepackage type intraocular lens injector axis direction moves.
2. prepackage type intraocular lens injector as claimed in claim 1, is characterized in that: described limit component is collapsible limit component.
3. prepackage type intraocular lens injector as claimed in claim 2, is characterized in that: described collapsible limit component is one or more collapsible banking stops.
4. prepackage type intraocular lens injector as claimed in claim 1, is characterized in that: described in inject that driving mechanism comprises the push rod (10) be arranged in described main body (3), the artificial intraocular lenses for the artificial intraocular lenses (5) injecting prepackage that is connected with described push rod front end pushes pin (9) and be connected with described push rod tail end inject handle (4).
5. prepackage type intraocular lens injector as claimed in claim 4, is characterized in that: described prepackage type intraocular lens injector comprises the rear button loop of the artificial intraocular lenses that can retrain prepackage further at the rear button loop limiting component perpendicular to the position on prepackage type intraocular lens injector axis direction.
6. prepackage type intraocular lens injector as claimed in claim 5, is characterized in that: described rear button loop limiting component is to push pin the tabletting of reverses direction of fastening with a rope, string, etc. after the restriction artificial intraocular lenses that moves with artificial intraocular lenses when injecting artificial intraocular lenses.
7. prepackage type intraocular lens injector as claimed in claim 4, is characterized in that: described in inject handle be serpentine pipe.
8. prepackage type intraocular lens injector as claimed in claim 1, is characterized in that: the integrally formed or described upspring structure of remainder of described upspring structure and described artificial intraocular lenses's supporting part and the remainder of described artificial intraocular lenses's supporting part link together via linkage section.
9. prepackage type intraocular lens injector as claimed in claim 8, is characterized in that: described upspring structure is the carrying shell fragment of artificial intraocular lenses for carrying prepackage or the thin plate that is connected with spring bottom it.
10. prepackage type intraocular lens injector as claimed in claim 1, is characterized in that: the rear button loop guiding surface that after described artificial intraocular lenses's supporting part is provided with the artificial intraocular lenses for the guiding prepackage when injecting, button loop moves to above intraocular lens optic face.
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| CN201310381444.XA CN104414774B (en) | 2013-08-28 | 2013-08-28 | Prepackage type intraocular lens injector |
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| CN201310381444.XA CN104414774B (en) | 2013-08-28 | 2013-08-28 | Prepackage type intraocular lens injector |
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| CN104414774B CN104414774B (en) | 2017-12-22 |
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Cited By (1)
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| WO2020151021A1 (en) | 2019-01-25 | 2020-07-30 | 爱博诺德(北京)医疗科技股份有限公司 | Intraocular lens implant device and pre-loaded intraocular lens implant apparatus |
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| CN104414774B (en) | 2017-12-22 |
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