CN206491899U - Intraocular lens injector - Google Patents
Intraocular lens injector Download PDFInfo
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- CN206491899U CN206491899U CN201621237825.6U CN201621237825U CN206491899U CN 206491899 U CN206491899 U CN 206491899U CN 201621237825 U CN201621237825 U CN 201621237825U CN 206491899 U CN206491899 U CN 206491899U
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- implant head
- intraocular lens
- head
- injection member
- location structure
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Abstract
The application is related to a kind of intraocular lens injector (1), it is characterised in that the intraocular lens injector (1) includes：Implant head (2), the implant head (2) is non-collapsible clip-type implant head；Injection member (3), the injection member (3) is matching used split part with the implant head (2), the injection member (3) includes outer tube (5) and the drive mechanism (6) being assembled together with outer tube (5), wherein, the implant head (2) and injection member (3) are disposable part.
Description
Technical field
The application is related to a kind of intraocular lens injector easy to operate, safe and reliable.
Background technology
Artificial lens is a kind of artificial lens, in cataract operation, by the substitution of implantable artificial crystal because cataract
Disease and the technology of mineral crystal that becomes in muddy human eye has been widely implemented.The form of artificial lens is typically by position
Fasten with a rope, string, etc. and constitute in the circular light department of the Chinese Academy of Sciences at center and the support on periphery.Different according to the material of processing artificial lens, artificial lens is divided into
The rigid artificial lens that optical section is formed by hard materials such as PMMA, and optical section is by silicone elastomer, hydrogel, soft propylene
The soft artificial intraocular lens of the flexible materials such as sour fat formation（Also referred to as foldable artificial lens）.
During using rigid artificial lens, the operative incision width dimensions of the implantable artificial crystal outputed on cornea must be with
Crystal optics portion diameter is substantially the same（It is general at least 6 millimeters）.By contrast, the artificial lens being made up of soft material then can be with
Pass through the operative incision of a reduced size after folding or crimping diminution own vol（It is general 2-3 millimeters）It is implanted into human eye.
Fold or curling after soft artificial intraocular lens product due to material characteristic enter eyes after can self expand to fold before from
By state.
In order to reduce the postoperative infection risk of Lens implantation and mitigate the pain of patient, preferably planted from small otch
Enter artificial lens, so current Lens implantation operation preferably implantation soft artificial intraocular lens.By optical section and the knot of support button loop
Conjunction mode, soft artificial intraocular lens are generally divided into single type crystal and three-member type crystal.Its optical section of single type soft artificial intraocular lens
Divide and support button loop is an entirety, be made up of same soft material.Its opticator of three-member type soft artificial intraocular lens and support
Button loop is made from a different material, and first passes through parts processing, then recombinant joint forming.Because three-member type soft artificial intraocular lens compare one
The problems such as part formula product is more easy to cause postoperative crystal off normal, so current single type soft artificial intraocular lens progressively replace three
Formula soft artificial intraocular lens.Single type soft artificial intraocular lens are divided into hydrophobic material artificial lens and hydrophilic material by material property
Artificial lens.Single type soft artificial intraocular lens are divided into L-type button loop crystal and plate shape button loop crystal by haptic type feature.Due to hydrophilic material
Relatively hydrophobic property material moisture content is higher, thus the relatively hydrophobic property material of hydrophilic material of same thickness is softer, therefore hydrophobic material
Single type artificial lens is typically designed to L-type button loop structure, and hydrophilic material single type crystal is typically designed to plate shape button loop structure.L
Type fastens with a rope, string, etc. structure crystal before the folding of crystal optics portion or curling it is generally necessary to which button loop is folded to the preceding surface in crystal optics portion after by crystal
Top, otherwise understands in Lens implantation crystallization process because the rear non-packing of button loop can not be disposable with optical section in crystal optics portion
By operative incision, ultimately result in rear haptic portion and stay in the outer increase operation, it is necessary to which operator fastens with a rope, string, etc. after being implanted into manually of operative incision
Complexity.
Soft artificial intraocular lens are implanted into intraocular, it is necessary to have using special intraocular lens injector, the utensil is generally by planting
Enter head and injection member two parts composition.According to the difference of structure design, implant head and injection member two parts both can be before uses
It is separate, also fit together.
Intraocular lens injector includes implant head and injection member separate type（I.e. two parts use preceding separate）People
Work Lens implantation device.Separate type intraocular lens injector needs operator first to irrigate cavity in implant head in use
Artificial lens, is then positioned in implant head in cavity, will finally be loaded with artificial lens by full viscoelastic agent by being taken out in packaging
Implant head is assembled together with injection member and completes assembly manipulation.In implantation process, the drive of injection member is operated by operator
The artificial lens that motivation structure is placed in implant head cavity is implanted in human eye by the operative incision less than 3 millimeters.Implant head
Usually plastic material, is processed into by Shooting Technique, disposable after ethane via epoxyethane sterilization treatment.Implant head front end
Generally there is an elongated tubular passageway design, rear portion connects the placement luminal portion of crystal.Implant head is placed according to crystal
Whether cavity needs folding operation to be divided into folding clip-type implant head and non-collapsible clip-type implant head.Injection member is generally by metal material
Matter part is assemblied, reusable, needs to handle through moist heat sterilization before use.
In place of the injection member of metal material comes with some shortcomings：Need to carry out at thoroughly cleaning after injection member use
Reason, needs to handle through moist heat sterilization before each use, adds the risk of patient's superinfection；The metal of injection member, which is pushed pin, is planting
Easily scratched during entering crystal or damage crystal product；Injection member is made up of metal parts assembling, and heavier-weight is unfavorable
In operator's operation；Injection member parts machining precision and assembly precision require high, and the quality human factor influence of apparatus is big
Because and be difficult ensure；Metal injection component costs are high, are unfavorable for producing and going wrong maintenance difficult in batches.
Above-mentioned weak point based on metal material injection member, is developed disposable crystal injection member.
Disposable crystal injection member is generally made up of plastic components assembling, and ethane via epoxyethane sterilization treatment is disposable.For
Implant head and disposable crystal injection member, are generally encapsulated in same packaging and constitute disposable crystal people by convenient use person
Work Lens implantation device, whole system ethane via epoxyethane sterilization treatment is disposable.Current disposable crystal artificial lens implantation
Device is just progressively replacing the non-disposable crystal intraocular lens injector used to turn into becoming for crystal intraocular lens injector tool development
Gesture.
The widely used disposable intraocular lens injector of more ripe separate type is Medicel companies on existing market
VISCOJECT BIO and VISCOJECT ECO series of products.This two serial disposable crystal intraocular lens injectors
With four it is main the characteristics of：Use folding clip-type implant head；Disposable injection member have single implant head guide groove and
Locating slot；Injection member push pin head with silica gel head auxiliary inject；Injection member is injection-type mechanism and carries spring members.
Because VISCOJECT BIO and VISCOJECT ECO series disposable intraocular lens injectors use folding clip-type implantation
Head, so two serial crystal intraocular lens injectors are more suitable for being implanted into the artificial lens of hydrophilic material.Because folding
The crystal of clip-type implant head places cavity will keep open state, crystal to be needed after placing by crystal placed cavity when placing crystal
Road after folding and snap-action by can just complete the curling in crystal optics portion, while can after crystal placement cavity folded closed
A piece of implant head location structure is formed in implant head body exterior.Because fold clip-type implant head needs a step after crystal placement
Folding operation, therefore it is more suitable for loading hydrophilic material crystal, because the artificial lens of hydrophilic material is designed using tabular haptic type,
Button loop operation need not be turned in crystal folding process.And the crystal of hydrophobic material is generally fastened with a rope, string, etc. using L-type and designed, therefore crystal needs before folding
The operation fastened with a rope, string, etc. after the turnover of one step, simultaneously because hydrophobic material material lower than hydrophilic material moisture content is partially hard, therefore folds clip-type
Implant head places that hydrophobic crystal is inconvenient, and it is easy to be fastened with a rope, string, etc. after the hydrophobic crystalline turned down during folding implant head
Get rid of and return to original state, the problem of being also easy to produce folder button loop or the folder other positions of crystal during folding implant head.
The head of pushing pin of the disposable intraocular lens injector injection member of VISCOJECT BIO and VISCOJECT ECO series is all filled
Equipped with silica gel head, although silica gel head material is soft, with bolus infusion processes not easy damaged artificial lens the characteristics of, but silica gel head exists
There is certain risk during injecting hydrophobicity crystal, because the power of injecting for injecting hydrophobicity crystal needs relatively injects parent
Aqueous crystal is big, the risk that there is bursting silica gel head of pushing pin during injector, and another risk is silica gel head in bolus infusion processes
In have and disengaging of pushing pin risk.
Utility model content
The purpose of the application is to solve problems of the prior art to use more convenient cost less expensive there is provided a kind of
Disposable intraocular lens injector.
According to the one side of the application there is provided a kind of intraocular lens injector, the intraocular lens injector includes：
Implant head, the implant head is non-collapsible clip-type implant head；Injection member, the injection member makes with the implant head to be supporting
Split part, the injection member includes outer tube and the drive mechanism being assembled together with outer tube, wherein, the implantation
Head and injection member are disposable part.
In a preferred embodiment, the drive mechanism includes shell and the drive division being contained in shell, the drive
Dynamic portion is screw-in drive division or push-in type drive division.
In another preferred embodiment, the implant head is planted for the non-collapsible clip-type in use without folding operation
Enter head, the implant head includes the crystal placement section of elongated tubular passageway and closing, and the implant head is set on its outer surface
One or more location structures are equipped with, the injection member is also equipped with one or more location structures on its outer tube, described
The location structure of implant head and the location structure of the injection member are quantitatively mutually corresponding and can be assembled together, so that
The implant head is combined together with the injection member.
In another preferred embodiment, the location structure of the implant head is spacer, the positioning knot of the injection member
Structure is locating slot.
In another preferred embodiment, the location structure of the injection member includes guide groove and locating slot, the implantation
The location structure of head reaches locating slot, and width of the width dimensions more than the locating slot of the guide groove via guide groove
Size.
In another preferred embodiment, the location structure of the location structure of the implant head and the injection member is two
It is individual.
In another preferred embodiment, the location structure of the location structure of the implant head and the injection member relative to
The central axis of the intraocular lens injector is symmetrical or asymmetric.
In another preferred embodiment, when the location structure of the implant head is multiple, the length of different location structures
Size is consistent or inconsistent.
In another preferred embodiment, the length dimension of the location structure of the implant head is more than 2.5mm.
In another preferred embodiment, the drive mechanism includes pushing pin, and the head end pushed pin has groove special
The plane or curved-surface structure of un-grooved feature are levied or are, and the head pushed pin is without silica gel head.
Brief description of the drawings
Fig. 1 shows the intraocular lens injector of one embodiment of the application；
Fig. 2 shows the implant head of one embodiment of the application；
Fig. 3 shows the drive mechanism of one embodiment of the application；
The head that Fig. 4 shows the drive division of one embodiment of the application and its pushed pin；
Fig. 5 shows the implant head of one embodiment of the application and the location structure of drive mechanism；
Fig. 6 shows the implant head and the location structure of drive mechanism of another embodiment of the application.
Embodiment
The term " optical section " used in this application refers to having optical characteristics on artificial lens realizing
Adjust the part of the major function of artificial lens diopter.
The term " button loop " used in this application refers to being connected with intraocular lens optic portion, has both played support optical section work
With playing a part of the convergent force produced by the contraction and varicose of ciliary muscle being delivered to the part of the optical section again.
" central axis " of the term intraocular lens injector used in this application refers to elongated disposable artificial
The longitudinal centre line of Lens implantation device（As shown in fig. 1）.
The term of the expression position relation used in this application is forward and backward be relative to when injecting artificial lens artificial brilliant
For relative position relation on body implanting device axis.Such as " preceding button loop ", " rear button loop " are artificial lens relative to human eye along people
For the direction of motion of work Lens implantation device axis.For example, in implantation process, in intraocular lens injector axis direction
On, " preceding button loop " is located at the front of " rear button loop ", closer at the position of human eye.
In addition, unless otherwise defined, the implication of all scientific and technical terminologies used herein and the skill of the application art
It is the same that art personnel, which are generally understood that,.If conflict occurs, then by this specification and its including definition be defined.
The application is related to disposable intraocular lens injector.As shown in figure 1, the disposable intraocular lens injector of the application
1 includes implant head 2 and crystal injection member 3.The disposable intraocular lens injector 1 of the application is implant head 2 and injection member 3
Separate type（I.e. two parts use preceding separate）Intraocular lens injector, i.e. injection member 3 and the implant head 2 is supporting
The split part used.The unitizings of both implant head 2 and injection member 3, and unassembled using preceding holding released state
Together.In a preferred embodiment, implant head 2 and injection member 3 are disposable part.
Implant head 2 is non-collapsible clip-type implant head in use without folding operation, it include tubular passageway with
Crystal placement section.After crystal is placed, implant head 2 is without folding operation.Implant head 2 has one or more location structures.Such as
Shown in Fig. 2, in a preferred embodiment, the location structure of implant head can be spacer 4 for laminated structure, and implant head
The quantity of location structure is preferably two.Two spacers 4 are shown in Fig. 2.
As shown in Fig. 3 institutes, injection member 3 includes outer tube 5 and drive mechanism 6.Outer tube 5 has the location structure with implant head
The one or more location structures being engaged.The location structure of outer tube 5 may be provided on the outer surface of outer tube 5.At one preferably
In embodiment, the location structure of injection member 3 may include locating slot 7 and guide groove 8.The location structure of implant head 2 is via guiding
Groove 7 reaches locating slot 8, and width dimensions of the width dimensions more than the locating slot 7 of the guide groove 8.Implant head 2 is determined
Bit architecture and the location structure of injection member 3 are quantitatively mutually corresponding and can be assembled together so that the implant head with
The injection member is combined together.
In a preferred embodiment, the location structure of the location structure of implant head 2 and injection member 3 is relative to artificial crystalline substance
The central axis of body implanting device is symmetrical or asymmetric.In another preferred embodiment, determining when implant head 2
When bit architecture is multiple, it can be consistent or inconsistent that the length dimension of different location structures, which is,.In length ruler
It is very little it is inconsistent in the case of, can play prevent implant head mistake assemble purpose.In a preferred embodiment, implant head 2 is determined
The length dimension of bit architecture can be more than 2.5mm.
Drive mechanism 6 includes shell and the drive division being contained in shell, and the drive division can be push-in type drive division,
Can also be screw-in drive division, without spring members.As shown in figure 4, in a preferred embodiment, drive mechanism 6
Including pushing pin 9,9 head of pushing pin need not assemble silica gel head.Due to pushing pin, 9 head need not assemble silica gel head, therefore be not present
Because inject the problems such as power is big cause to push pin damage silica gel head the problem of, also in the absence of silica gel head and push pin in bolus infusion processes because
Push pin and retract and the isolation of components problem that causes silica gel head to be stuck in the head elongated tubular product path of implant head.It is preferred real at one
Apply in example, push pin 9 head can be architectural feature with groove, so inject crystal motion during can be with more reliable
The reliability caught crystal, improve implant procedure.In addition, push pin 9 head end can also be un-grooved feature plane
Or curved-surface structure.It 9 can be plastic material to push pin, so both ensure to push pin with enough rigidity during crystal is injected not
It is yielding, metal is reduced again pushing pin, the risk of crystal is damaged in bolus infusion processes.
The disposable crystal intraocular lens injector 3 of the application is in operation, and viscoelastic agent is filled implantation by operator first
Cavity in head, then artificial lens is taken out, be placed in folding implant head from packing at cavity afterbody opening.If
Crystal is template button loop crystal, then without turnover button loop operation, directly push crystal is placed at home position to implant head crystal forward.
Because implant head has the crystal placement section of closing, so crystal placement operation is easier than folding clip-type implant head.If crystal
The crystal for structure of being fastened with a rope, string, etc. for L-type, then after crystal is placed in importing head at cavity afterbody opening, need to be folded to light by button loop after crystal
Department of the Chinese Academy of Sciences upper surface, also due to interior cavity design of the implant head for closure, the operation fastened with a rope, string, etc. after turnover becomes to be easy to, and after turnover
Crystal after button loop be difficult to get rid of to return to and do not turn down state, last operation person continues the artificial lens fastened with a rope, string, etc. after turnover to be pushed to plant forward
Enter the crystal lay down location of leader knowledge.
The process fastened with a rope, string, etc. after placing and turn down from above-mentioned crystal is as can be seen that non-collapsible clip-type implant head is applied to different materials
Matter, the artificial lens of different haptic type, the hydrophobic crystal fastened with a rope, string, etc. especially for L-type will be more compared with folding clip-type implant head operation
It is convenient.Crystal is pushed to forward behind implant head home position, because the special interior cavity of implant head designs crystal optics subordinate's table
Face will be contacted with cavity bottom surface in implant head, while optical section is in preliminary turnover state.By the implant head of built-in crystal
Outside location structure aligns with the guiding cavity feature of injection member main element front end, for example can be by injection member front end from forward direction
After promote implant head（The assembly direction of implant head can also be assembled from the front to the back, and assembly direction depends on injection member main element
Guide groove, locating slot diverse location design and structure design）.Implant head location structure is oriented to by injection member main body and tied
Structure is moved in the location structure of main element, location structure meeting Complete Bind implant head, it is ensured that implant head is in Lens implantation mistake
Holding position is fixed in journey.The manual rotate counterclockwise drive mechanism spiral rod unit of operator, drive is pushed pin plants along artificial lens
Enter device axis direction A to travel forward.Push pin and 9 enter in implant heads after cavity, because implant head has special interior cavity design,
And the relative position relation pushed pin with implant head, it is constantly in and cavity bottom surface is contacted in implant head support so that pushing pin
Bottom motion state, therefore the head pushed pin eventually touches the crystal optics portion side surface for placing designated identification position.Continue
Rotating screw rod unit, pushing pin and continue to inject crystal motion forward, and finally inject crystal passes through implant head inner chamber road head tube
Shape feature, is entered in human eye by operative incision.
Those skilled in the art will appreciate that the description of above example is only the preferred embodiment for illustrating the application,
And not this Applicant's Abstract graph whole schemes, wherein, any type of modification or change based on the above embodiments of the present application are fallen within
To within the concept of the present invention.
Claims (10)
1. a kind of intraocular lens injector (1), it is characterised in that the intraocular lens injector (1) includes：
Implant head (2), the implant head (2) is non-collapsible clip-type implant head；
Injection member (3), the injection member (3) is matching used split part, the injection part with the implant head (2)
Part (3) includes outer tube (5) and the drive mechanism (6) being assembled together with outer tube (5),
Wherein, the implant head (2) and injection member (3) are disposable part.
2. intraocular lens injector (1) as claimed in claim 1, it is characterised in that the drive mechanism (6) include shell and
The drive division in shell is contained in, the drive division is screw-in drive division or push-in type drive division.
3. intraocular lens injector (1) as claimed in claim 1 or 2, it is characterised in that the implant head is to use process
In non-collapsible clip-type implant head without folding operation, the implant head includes elongated tubular passageway and the crystal of closing is placed
Portion, the implant head is provided with one or more location structures on its outer surface, and the injection member (3) is in its outer tube (5)
On be also equipped with one or more location structures, the location structure of the location structure of the implant head and the injection member (3)
Quantitatively mutually correspond to and can be assembled together, so that the implant head is combined together with the injection member (3).
4. intraocular lens injector (1) as claimed in claim 3, it is characterised in that the location structure of the implant head is fixed
Bit slice, the location structure of the injection member (3) is locating slot.
5. intraocular lens injector (1) as claimed in claim 4, it is characterised in that the location structure of the injection member (3)
Including guide groove and locating slot, the location structure of the implant head reaches locating slot via guide groove, and the guide groove
Width dimensions are more than the width dimensions of the locating slot.
6. intraocular lens injector (1) as claimed in claim 3, it is characterised in that the location structure of the implant head and institute
The location structure for stating injection member (3) is two.
7. intraocular lens injector (1) as claimed in claim 3, it is characterised in that the location structure of the implant head and institute
It is symmetrical or asymmetric that the location structure of injection member (3), which is stated, relative to the central axis of the intraocular lens injector (1)
's.
8. intraocular lens injector (1) as claimed in claim 3, it is characterised in that when the location structure of the implant head is
When multiple, the length dimension of different location structures is consistent or inconsistent.
9. intraocular lens injector (1) as claimed in claim 3, it is characterised in that the length of the location structure of the implant head
Spend size and be more than 2.5mm.
10. intraocular lens injector (1) as claimed in claim 3, it is characterised in that the drive mechanism includes pushing pin, institute
Stating the head end pushed pin has notch feature or the plane or curved-surface structure for un-grooved feature, and the head pushed pin
Portion is without silica gel head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237825.6U CN206491899U (en) | 2016-11-18 | 2016-11-18 | Intraocular lens injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237825.6U CN206491899U (en) | 2016-11-18 | 2016-11-18 | Intraocular lens injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206491899U true CN206491899U (en) | 2017-09-15 |
Family
ID=59800196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621237825.6U Active CN206491899U (en) | 2016-11-18 | 2016-11-18 | Intraocular lens injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206491899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916849A (en) * | 2019-11-06 | 2020-03-27 | 广州卫视博生物科技有限公司 | Disposable implanting device for folding artificial vitreous saccule |
-
2016
- 2016-11-18 CN CN201621237825.6U patent/CN206491899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916849A (en) * | 2019-11-06 | 2020-03-27 | 广州卫视博生物科技有限公司 | Disposable implanting device for folding artificial vitreous saccule |
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| GR01 | Patent grant | ||
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Address after: 102200 No. 9 Xingchang Road, Changping District Science and Technology Park, Beijing Patentee after: Abbott (Beijing) Medical Technology Co., Ltd. Address before: 102200, Changping District Beijing science and Technology Park, super Road, No. 37, building 1, 6 North Zone Patentee before: Eponode (Beijing) Medical Technology Co., Ltd. |
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| CP03 | Change of name, title or address |