CN208958409U - A kind of screw-in artificial lens injector - Google Patents
A kind of screw-in artificial lens injector Download PDFInfo
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- CN208958409U CN208958409U CN201721448148.7U CN201721448148U CN208958409U CN 208958409 U CN208958409 U CN 208958409U CN 201721448148 U CN201721448148 U CN 201721448148U CN 208958409 U CN208958409 U CN 208958409U
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- Prior art keywords
- sleeve
- pin
- thread
- screw thread
- artificial lens
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Abstract
The utility model discloses a kind of screw-in artificial lens injector, injector includes pushing pin and being sheathed on the sleeve on pushing pin.It pushes pin and is equipped with helicitic texture between sleeve, internal screw thread and external screw thread are made of two different materials, titanium alloy material are respectively adopted and polyetheretherketonematerials materials are made, or titanium alloy material are respectively adopted and stainless steel material is made.And pushing pin with the thread pitch range in set road is 0.01mm to 0.2mm.A kind of screw-in artificial lens injector of the utility model, helicitic texture are made of two kinds of lower materials of coefficient of friction, to reduce the coefficient of friction pushed pin between sleeve.It is precisely controlled the gap pushed pin between sleeve simultaneously, the resistance of injecting of injector itself can be effectively reduced, reduces operation risk.Secondly, helicitic texture is arranged to the bigger multi start thread structure of lead angle, so that pushing pin between sleeve, friction is small, is not likely to produce deadlock phenomenon, keeps bolus infusion processes more smooth, is conducive to Lens implantation.
Description
Technical field
The utility model relates to a kind of artificial lens injector more particularly to a kind of screw-in artificial lens injectors.
Background technique
Intraocular lens injector mainly includes pushing pin and two components of sleeve, according to the difference of traveling mode, injector
Screw-in and push-in type can be divided into.Pushing pin for screw-in injector has helical structure between sleeve, pushes pin and revolves along sleeve
Turn to advance.Screw-in injector can effectively control travel speed of pushing pin, and push pin and evenly steadily push intraocular lens
(IOL) advance, be conducive to IOL slowly it is undamaged enter human eye, guarantee the safe and reliable of surgical procedure, therefore screw-in is injected
Very big welcome of the device by doctor.
But there is also shortcomings for existing screw-in injector, in the prior art, push pin with sleeve using of the same race
Material is made, such as stainless steel, titanium alloy, engineering plastics, and the coefficient of friction between same material is larger, be easy to cause screw-in difficult
The phenomenon that.The improper problem of the clearance fit between external screw thread there is also the internal screw thread on sleeve and on pushing pin, gap mistake
The small frictional force that will cause is excessive, be easy to cause that resistance is excessive in bolus infusion processes or has phenomena such as abnormal sound；Gap it is excessive it will cause
Position inaccurate in bolus infusion processes is not easy to the progress of operation.
Utility model content
The purpose of the utility model is to provide a kind of screw-in artificial lens injectors, push pin and adopt with the helicitic texture of sleeve
It is made of different materials, the frictional force between reduction；The gap between internal screw thread and external screw thread is controlled appropriate simultaneously
In range, be conducive to push pin.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of screw-in artificial lens injector, institute
Stating injector includes the sleeve pushed pin and be sheathed on described push pin, described to push pin including the push rod for being arranged in the sleeve inner
And the push top set on the push rod end, described push pin are equipped with helicitic texture between sleeve, the push rod is equipped with outer spiral shell
Line is equipped with the internal screw thread matched with the external thread structure, the internal screw thread and external screw thread in the sleeve using two kinds not
With material be made, in the internal screw thread and external screw thread are respectively adopted titanium alloy material and polyetheretherketonematerials materials are made or are described
Titanium alloy material is respectively adopted in screw thread and external screw thread and stainless steel material is made, and described push pin is with the thread pitch range in set road
0.01mm to 0.2mm.
Preferably, described push pin with the thread pitch range in set road is 0.02mm to 0.05mm.
Preferably, the helicitic texture is multi start thread structure.
Further, the multi start thread structure is double thread structure.
Further, the multi start thread structure is triple thread structure.
Further, the multi start thread structure is quadruple thread structure.
Due to the application of the above technical scheme, the utility model has the advantage that this is practical new compared with prior art
A kind of screw-in artificial lens injector of type is pushed pin and is made with sleeve of two kinds of lower materials of coefficient of friction, to reduce
The coefficient of friction pushed pin between sleeve.It is precisely controlled the gap pushed pin between sleeve simultaneously, so that it is in accurate positioning
On the basis of, frictional force is preferably minimized, and can effectively reduce the resistance of injecting of injector itself, reduces operation risk.Secondly, spiral shell
The line structure setting multi start thread structure bigger at lead angle, so that pushing pin between sleeve, friction is small, is not easy
Deadlock phenomenon is generated, keeps bolus infusion processes more smooth, is conducive to Lens implantation.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the screw-in artificial lens injector of the utility model；
Attached drawing 2 is the schematic cross-section of the screw-in artificial lens injector of the utility model；
Attached drawing 3 is that the screw-in artificial lens injector of the utility model is pushed pin with double thread structural schematic diagram；
Attached drawing 4 is that the screw-in artificial lens injector of the utility model is pushed pin with quadruple thread structural schematic diagram.
Wherein: 1, pushing pin；11, push rod；12, it has a haircut；2, sleeve；3, helicitic texture.
Specific embodiment
The technical solution of the utility model is further elaborated with reference to the accompanying drawings and examples.
Referring to a kind of attached drawing 1 to attached screw-in artificial lens injector shown in Fig. 4, including pushes pin and 1 and be sheathed on and push pin 1
On sleeve 2.1 is pushed pin including being arranged in the push rod 11 inside sleeve 2 and the push top 12 set on 11 end of push rod.Push pin 1 with
Helicitic texture 3 is equipped between sleeve 2, push rod 11 is equipped with external screw thread, is equipped with the interior spiral shell matched with external thread structure in sleeve 2
Line.Wherein, internal screw thread and external screw thread are made of two different materials, and the coefficient of friction between this two kinds of materials is lower, with
Reduce the frictional force pushed pin between 1 and sleeve 2.Preferred material are as follows: titanium alloy and polyether-ether-ketone, i.e. internal screw thread use titanium alloy
Material is made, external screw thread is made of polyetheretherketonematerials materials；Or internal screw thread is made of polyetheretherketonematerials materials, external screw thread is using titanium
Alloy material is made.Second of preferred material are as follows: titanium alloy and stainless steel, i.e. internal screw thread are made, outside using titanium alloy material
Screw thread is made of stainless steel；Or internal screw thread is made of stainless steel, external screw thread is made of titanium alloy material.Into
One step, 1, sleeve 2 of pushing pin can be made of material identical with internal screw thread, external screw thread above, to reduce complex process journey
Degree.
If the too small frictional force that will cause in gap between internal screw thread and external screw thread is excessive, excessive will cause in gap was injected
Position inaccurate or generation abnormal sound in journey.Push pin 1 with the thread pitch range of sleeve 2 is 0.01mm to 0.2mm, preferred range
For 0.01mm to 0.1mm, further preferred range is 0.02mm to 0.05mm.We must go out after multiple repetition test
Best clearance between screw thread and internal screw thread in 0.02mm to 0.05mm, at this moment injector to inject effect best.
Secondly, the multi start thread structure that helicitic texture is bigger using lead angle.Preferably, multi start thread structure is double
Line helicitic texture, triple thread structure, quadruple thread structure.
Embodiment 1: pushing pin 1 and polyether-ether-ketone is respectively adopted for sleeve 2 and titanium alloy material is made, and pushes pin between 1 and sleeve 2
The helicitic texture 3 used is double thread, and wherein thread pitch is 0.15mm.
Embodiment 2: pushing pin 1 and polyether-ether-ketone is respectively adopted for sleeve 2 and titanium alloy material is made, and pushes pin between 1 and sleeve 2
The helicitic texture 3 used is quadruple thread, and wherein thread pitch is 0.08mm.
Embodiment 3: pushing pin 1 and stainless steel is respectively adopted for sleeve 2 and titanium alloy material is made, and pushes pin and adopts between 1 and sleeve 2
Helicitic texture 3 is double thread, and wherein thread pitch is 0.02mm.
Embodiment 4: pushing pin 1 and stainless steel is respectively adopted for sleeve 2 and titanium alloy material is made, and pushes pin and adopts between 1 and sleeve 2
Helicitic texture 3 is quadruple thread, and wherein thread pitch is 0.04mm.
To sum up, the screw-in artificial lens injector and implant system of the utility model, a kind of screw-in of the utility model
Formula artificial lens injector is pushed pin and is made with sleeve of two kinds of lower materials of coefficient of friction, with reduce push pin with sleeve it
Between coefficient of friction.It is precisely controlled the gap pushed pin between sleeve simultaneously, so that it is on the basis of accurate positioning, frictional force
It is preferably minimized, the resistance of injecting of injector itself can be effectively reduced, reduce operation risk.Secondly, helicitic texture is arranged to
The bigger multi start thread structure of lead angle, so that pushing pin between sleeve, friction is small, is not likely to produce deadlock phenomenon,
Keep bolus infusion processes more smooth, is conducive to Lens implantation.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (6)
1. a kind of screw-in artificial lens injector, the injector includes the sleeve pushed pin and be sheathed on described push pin, institute
State the push pin push rod including being arranged in the sleeve inner and the push top set on the push rod end, it is characterised in that: described
It pushes pin and is equipped with helicitic texture between sleeve, the push rod is equipped with external screw thread, is equipped with and the external screw thread knot in the sleeve
The internal screw thread that structure matches, the internal screw thread and external screw thread are made of two different materials, the internal screw thread and external screw thread
Be respectively adopted titanium alloy material and polyetheretherketonematerials materials be made or the internal screw thread and external screw thread be respectively adopted titanium alloy material and
Stainless steel material is made, and described push pin with the thread pitch range in set road is 0.01mm to 0.2mm.
2. screw-in artificial lens injector according to claim 1, it is characterised in that: the screw thread pushed pin with set road
Interstice coverage is 0.02mm to 0.05mm.
3. screw-in artificial lens injector according to claim 1, it is characterised in that: the helicitic texture is multi-thread spiral shell
Line structure.
4. screw-in artificial lens injector according to claim 3, it is characterised in that: the multi start thread structure is double
Line helicitic texture.
5. screw-in artificial lens injector according to claim 3, it is characterised in that: the multi start thread structure is three
Line helicitic texture.
6. screw-in artificial lens injector according to claim 3, it is characterised in that: the multi start thread structure is four
Line helicitic texture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448148.7U CN208958409U (en) | 2017-11-02 | 2017-11-02 | A kind of screw-in artificial lens injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448148.7U CN208958409U (en) | 2017-11-02 | 2017-11-02 | A kind of screw-in artificial lens injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208958409U true CN208958409U (en) | 2019-06-11 |
Family
ID=66746059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721448148.7U Active CN208958409U (en) | 2017-11-02 | 2017-11-02 | A kind of screw-in artificial lens injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208958409U (en) |
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2017
- 2017-11-02 CN CN201721448148.7U patent/CN208958409U/en active Active
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