CN1118247A - Deformable tools for inserting lens into eye - Google Patents
Deformable tools for inserting lens into eye Download PDFInfo
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- CN1118247A CN1118247A CN 94115696 CN94115696A CN1118247A CN 1118247 A CN1118247 A CN 1118247A CN 94115696 CN94115696 CN 94115696 CN 94115696 A CN94115696 A CN 94115696A CN 1118247 A CN1118247 A CN 1118247A
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- lens
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- retaining member
- maintaining part
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Abstract
The inserting appliance for deformable in-eye lens includes elastic optical part with defined memory characteristics, support part for supporting the said optical part in eyeball, cylindrical body having front hold member, lens hold part having open-close mechanism for making the said lens into smaller shape, and inserting tube, push mechanism on cylindrical body for pushing lens out of the inserting tube by push rod, and close member part for open-close mechanism.
Description
The present invention relates to a kind ofly operate on the intraocular lens inserting instrument that is used when this crystal inserts ophthalmic with deformable lens substituting after the lens extraction of eyeball because of cataract.
During the excising operation of general cataractous eyeglass, (in-cision) is littler for the otch that cuts on the eyeball, and it is littler that the probability of disorderly looking takes place in the operation back.
For this reason, be developed out a kind of so-called ultrasonic crystal emulsifying suction (KPE) of using ultrasound emulsifying suction device.Skill is to utilize above-mentioned ultrasound emulsifying suction device according to this, the crystal of nebulousurineization is smashed and emulsifying after with its extraction.So only can be with lens extraction to the otch of the about 4mm of eyeball incision.This compares with the traditional ECCE (ECCE) that need cut the otch of about 10mm when the extracting lens, and is obviously progressive.
For in response to above-mentioned little cutting operation method, the intraocular lens that existing a kind of at present otch from childhood inserts ophthalmic is developed.Traditional intraocular lens is to have the optic of being made by hard materials such as glass or plastic cement (optical part), and the otch size when therefore transplanting must be greater than the diameter of this optic.Multiple occasion, the otch size is at 6.5mm or bigger.Because this kind relation, even if, when inserting the intraocular lens of hard, otch need be cut expansion once again according to the KPE otch extracting lens from childhood of performing the operation.
In Japanese Patent Application clear 58-18005, have and disclose a kind of deformable eyes buitin lens that can insert from the little otch of eyeball.These lens 1 are the optic 2 that form of the deformable elastomer by the memory characteristic fixed to have and this optic is propped up the support sector 3 that is held in ophthalmic are constituted as shown in Figure 3.Support sector 3 and optic 2 are to form with different types of pliability material, base portion 3a are imbedded the peripheral part of optic 2 and are fixed, with first end 3b bending and the 3 symmetric configurations of two support sectors.Another kind is as shown in Figure 4, has the optic 2 identical with optic shown in Figure 3, and in the outwards outstanding laminar support sector 4 of the formation of the periphery subtend of this optic 2 and one to support the constructor of optic 2.
As for deformable tools for inserting lens into eye, then have for example to be disclosed in flat 3-No. 142067 persons of Japanese Patent Application.This inserts utensil, as shown in Figure 5, have: leading section is provided with the roughly tubular apparatus body 5 of the formerly distolateral assembling ditch 5a in its narrow wide position, by the push-off pin 6 that is intercalated in apparatus body 5 and for making these push-off pin 6 advance and retreat be screwed into the ejecting mechanism 7 that the cylindrical shell 7 in the apparatus body constitutes, reach and insert the distolateral retaining member 11 of elder generation that tube (insertion mouth) 10 protrudes in the lens maintaining part 9 that has switching mechanism 8.
When utilizing this kind insertion utensil that deformable eyes buitin lens 1 is substituted eyeglass insertion ophthalmic, in switching mechanism 8 open states, intraocular lens 1 is arranged at the lens maintaining part 9 that unloads from the retaining member 11 of apparatus body 5, closes switching mechanism 8 subsequently and can make intraocular lens 1 be deformed into less shape.Keep under this shape, the major part of retaining member 11 is flush-mounted in the first end of apparatus body 5 by assembling ditch 5a, under this state, retaining member 11 is advanced, its dress is taken off be contained in freely on the apparatus body 5, make insertion tube 10 outstanding simultaneously, can finish inserting the utensil assembling from the tip of apparatus body 5.
According to after above-mentioned assembling finishes, the operation tube 7b of the male thread cylindrical shell 7a rearward end of the ejecting mechanism 7 of turn insertion utensil, make push-off pin 6 shift-in forward that is in going-back position, then can borrow the first end of push-off pin 6 with intraocular lens 1, the lens maintaining part 9 of self-sustaining member 11 is via the otch of the about 4mm that is formed at eyeball, intraocular lens is inserted in the eyeball, and this moment, the optic 2 of intraocular lens 1 was to return to the preceding former big shape of distortion by being deformed into little shape attitude by shape memory characteristic.
The apparatus body 5 of above-mentioned insertion utensil, the push-off pin 6 of ejecting mechanism 7 and male thread cylindrical shell 7 are the integrally formed product of the flexual synthetic resin of tool for 11 of metallic retaining members.
Yet, because apparatus body and retaining member that above-mentioned traditional intraocular lens inserts with utensil are discrete structure body, therefore use the time spent to need earlier intraocular lens to be placed in the lens retaining member, close optic that switching mechanism makes intraocular lens etc. and be deformed into less shape, keep then under this state, this retaining member intercalation is positioned to assemble on the apparatus body becomes the inserter tool.It is complicated to pretend the industry formality, influences efficient.
In addition, in above-mentioned assembling operation, if because of carelessness when bumping the switching mechanism of opening the lens maintaining part that is equipped on retaining member, the intraocular lens that is positioned over the lens maintaining part just may be jumped out from this maintaining part, or in this maintaining part displacement takes place.When the latter's situation took place, the push-off pin that just can't utilize ejecting mechanism in use was with its smooth release.Even can release in also difficult that it is the correct insertion eyeball.
The present invention is for solving the above problems, providing a kind of does not need apparatus body and retaining member assembly, can easily lens be put into the lens maintaining part of retaining member, make it be deformed into little shape and the lens of putting into the lens maintaining part correctly can be kept, unlikely jumping out or displacement is fit to the lens of distortion are inserted intraocular deformable tools for inserting lens into eye via little otch.
Promptly, the present invention be relevant a kind of have by the optic that forms of the deformably resilient material of fixed memory characteristic and be used for this optic is propped up the insertion utensil that is held in the deformable intraocular lens that intraocular support sector constitutes, it is characterized in that this insertion utensil system is by cylindric apparatus body, the retaining member of the front end that is formed at this apparatus body of one, be provided in one of end after this retaining member and have the lens maintaining part that lens distortion can be become the switching mechanism of less shape, be connected with in the insertion tube of the front end of this lens retaining member, be installed in one on the above-mentioned apparatus body and have and be used for, and the member that agrees with that is used for making above-mentioned switching mechanism remain in closure state that one of is installed on this apparatus body free to advance or retreat constitutes the ejecting mechanism of lens by the push-off pin of the front end release of this insertion tube.
Because lens of the present invention insert utensil system apparatus body and retaining member are constituted one, as long as so open the switching mechanism of retaining member, lens are put into its lens maintaining part, closing this switching mechanism can make this lens distortion become less shape, to be installed in above-mentioned on the apparatus body subsequently agrees with member and moves toward lens maintaining part direction and make the switching mechanism closure, lens can be remained in the lens maintaining part, so can omit the assembling operation of apparatus body and retaining member, can be easily and finish the arrangement of lens fast and keep operation.
Except that above-mentioned, agree with member and can make switching mechanism be closure state owing to only depend on to move, the former lens of putting into the lens maintaining part are unlikely to be jumped out, also be unlikely the generation displacement, the operation that can borrow ejecting mechanism is released the insertion tube of this lens self-sustaining member and smoothly by in the correct insertion eyeball of little otch, so can improve the safety of eyeglass transplant operation.
The simple declaration of drawing
Fig. 1 is the part incised notch oblique view that deformable intraocular lens of the present invention inserts an embodiment of utensil;
Fig. 2 is the oblique view of the retaining member of insertion utensil shown in Figure 1;
Fig. 3 is the amplification front view of an example of deformable eyes buitin lens;
Fig. 4 is the amplification front view of another example of deformable intraocular lens; And
Fig. 5 is the part incised notch oblique view that traditional deformable intraocular lens inserts utensil.
Now illustrate that with reference to Fig. 1-Fig. 2 one embodiment of the invention are in following.
In Fig. 1, code name 12 representatives apparatus body roughly cylindraceous.Male thread 12c be formed at one of circumferential surface of section diameter major part 12a after the apparatus body 12 among a small circle in.The box thread 14a of side face is screwed within operation tube 14 (the operation sleeve) of male thread 12c and ejecting mechanism 13.
Ejecting mechanism 13 contains a push-off pin 15, and its rear end is inserted in the operation tube 14 coaxially, and supports by operating tube 14, push-off pin 15 can be rotated operation tube 14, but can not do axially to move to the operation tube.End system inserts in the apparatus body 12 coaxially before the push-off pin 15, and is extended by side before the apparatus body 12.Push-off pin 15 is to borrow not shown suitable means to stop it to apparatus body 12 rotations.In addition, the front end of push-off pin 15 is formed with a 15a of larger-diameter release portion (push out portion).The rear end system of operation tube 14 is with suitable means blocking in addition.
In Fig. 2, the back cylindrical portion 17 of retaining member 16 described later is fixed in the less part 12b of section diameter before the apparatus body 12, for example back cylindrical portion 17 is tightly inserted in the 12b of leading portion portion and makes back cylindrical portion 17 and the 12b of leading portion portion arranged coaxial.Retaining member 16 has a lens maintaining part 19 with switching mechanism 18, and this maintaining part 19 is positioned at the place ahead of back cylindrical portion 17, and is formed at the preceding cylindrical portion 20 in the place ahead of lens maintaining part 19.The insertion tube 21 of front end convergent is stretched out by preceding cylindrical portion 20.Each above-mentioned parts are arranged coaxial all.
Said lens maintaining part 19 comprises: be arranged at back cylindrical portion 17 and before between the cylindrical portion 20 and with they integrally formed fix half 22, and with this fix half 22 in pairs to be arranged at back cylindrical portion 17 reach before between the cylinder 20 movable half 23.Above-mentioned movable half 23 lower edge is to borrow hinge 24 to be linked to fix half 22 lower edge, makes movable half 23 can fix half 22 switching operation freely to this.
Fixing half 22 and but movable half 23 upper limb is equipped with fixation clip 25 and dynamic pressure plate 26 respectively upward, and above the central authorities of fixation clip 25, be formed with jut 25a.Be formed with the 23a of incised notch portion in movable half 23 upper rear end in addition.But 26 of above-mentioned dynamic pressure plates are located at the part that is not formed with the 23a of incised notch portion.
But when closing the switching mechanism 18 that constitutes by movable half 23, hinge 24 and dynamic pressure plate 25, but dynamic pressure plate 26 is affixed by fixation clip 25, and movable half 23 be affixed by and fix half 22, thus form one with back cylindrical portion 17 and before cylindrical portion 20 concentric cylindrical body.
The leading section 12b of apparatus body 12 and the back cylindrical portion 17 of retaining member 16 are the same external diameter of arranged coaxial and tool, form a successive barrel surface.Above-mentioned 12b and 17 is flush-mounted in transparent agreeing with in the member 27, it can be free to slide vertically but 12b and 17 can not rotate and can not rotate around axle between mutually.Axially be formed with a card in the upper front end of agreeing with member 27 and end ditch 27a.When agreeing with member 27 and advance, but card ends ditch 27a and promptly agrees with mutually with the fixation clip 30 of retaining member 16 and dynamic pressure plate 26 and it is amplexiformed mutually and switching mechanism 18 is remained on the state of closing, when agreeing with member 27 and retreat, card ends ditch 27a and promptly removes agreeing with of pressing plate 25 and 26, and switching mechanism 18 is opened.
Retaining member 16 is to be formed by the one-body molded product with flexual synthetic resin, apparatus body 12, operation tube 14, push-off pin 15 and agree with 27 of members and formed by the molding product of synthetic resin respectively.
Utilize the insertion utensil of this embodiment, when inserting deformable intraocular lens shown in Figure 31 in the eyeball, at first make the push-off pin 15 of ejecting mechanism 13 and agree with member 27 and retreat, so can make the switching mechanism 18 of retaining member 16 be out state, but that is dynamic pressure plate 26 and movable half 23 are open state as shown in Figure 2.Then intraocular lens 1 is positioned over lens maintaining part 19, make diametrical position face on hinge 24 of the optic 2 of intraocular lens 1 this moment, make a support sector 3 positions in fixing half 22 side and forwards extending simultaneously, another support sector 2 positions are in movable half 23 side and extension rearward.Close open and close member 18 then, but make dynamic pressure plate 26 and movable half 23 be crimped on fixation clip 25 respectively and fix half 22, so can borrow movable and fix half 23 and 22 2 couples of Zhe of optic with lens 1 are bent to less shape and remain in the lens maintaining part 19.Under this state, agree with before the member 27 and then will fix and dynamic pressure plate 25,26 is forced to embed card and ended ditch 27a and be limited to closure state because of making it but make.Continue it, the little otch of the about 4mm that is picked-off by crystal inserts the insertion tube 21 of retaining member 16 in eyeball via this otch, borrow operation tube 14 forwards that manually make ejecting mechanism 13 revolution simultaneously, so 15 of push-off pins screw togather because of the male thread 12c's of the box thread 14a of operation tube 14 and apparatus body 12, along with operation tube 14 advances.When push-off pin 15 advances, the 15a of release portion of its tip promptly touch intraocular lens 1 optic 2 and with it via preceding cylindrical portion 20, insert tube 21 certainly and release and insert in the eyeballs.Because inserting the tip of tube 21 is inserted in the eyeball by little otch, so intraocular lens 1 is released from inserting tube 21, according to memory characteristic, elastic recovering force returns to flexural deformation preceding shape and size in the distortion of its optic 2 promptly, and borrow 3 of support sectors to be held in the eyeball, to finish the transplant operation of intraocular lens 1.
At this moment, in order to make slick and sly in inserting tube 21, the advancing of intraocular lens 1 energy, preferably release with lubricating fluid.
Insertion utensil of the present invention is owing to be fixed in retaining member 16 apparatus body 12 and both are constituted one, so need not as traditional device, need to be arranged on state in the retaining member 16 keeping deformable lens, that is under the state of the lens maintaining part 19 of closed retaining member 16, retaining member 16 is assemblied on the apparatus body, can prevent simultaneously lens maintaining part casual opening when assembly manipulation of retaining member, make the deformable intraocular lens 1 that places this maintaining part 19 jump out the outside, and can prevent that again lens 1 from deforming or displacement in this maintaining part 19 from this maintaining part.
During according to the present invention's insertion utensil, agree with lens maintaining part 19 side shiftings of member 27 as long as will be embedded on the back cylindrical portion 17 of apparatus body 12 and retaining member 16 outward towards retaining member, the switching mechanism 18 of lens maintaining part can be guaranteed in closing state, so operation that not only can be certain and safe, the simultaneously above-mentioned move operation that agrees with member 27 is very easy, can with the very short time just can be with switching mechanism 18 closures, making intraocular lens 1 is less shape by big warpage.
Again, owing to agree with the molding product that member 27 is a lucite, thus when being arranged at deformable eyes buitin lens 1 in the lens maintaining part 19, can agree with the outside perspective switching mechanism 18 of member etc. certainly, with the state that is provided with of affirmation intraocular lens 1, the increase safety.
According to the foregoing description, constitute to insert utensil apparatus body 12, ejecting mechanism 13 operation tube 14, push-off pin 15, retaining member 16 and agree with the molding product that member 27 is all synthetic resin, so the insertion utensil is cheap for manufacturing cost, it can be abandoned after the use.
Again, according to the above embodiment of the present invention, owing to be formed with the 23a of incised notch portion on the movable half 23 rear end side top of switching mechanism 18, and but nothing dynamic pressure plate 26 exists above the 23a of this incised notch portion, when the former intraocular lens 1 that for example will have crooked support sector is arranged in the lens maintaining part 19, the crooked first end 3a of the support sector 3 of the rear projection of the optic 2 of these lens is placed in the space that the 23a of this incised notch portion defines, can avoid the 15a of release portion of push-off pin 15 that the end 3b of this elder generation is taken place to disturb and cause its distortion or displacement.
The deformable ophthalmic of present embodiment inserts utensil and does not limit to the intraocular lens that is applicable to as shown in Figure 3, also the deformable intraocular lens of being given prominence to by optic 2 periphery one applicable to its support sector 4 as shown in Figure 4 equally.Again, when using the intraocular lens of Fig. 4, needn't form as above-mentioned incised notch portion at movable half, but and make the rear end of dynamic pressure plate and the rear end of fixation clip be positioned at correspondence position, and the size that will movably reach both fore-and-aft directions of fixation clip forms equal.
In the insertion utensil of the present invention, the back cylinder of the retaining member then mode of also can borrowing be fixed in the leading section of apparatus body, agrees with member simultaneously and needn't one is customized to cylindricly, and promptly the total length in the cylindrical shell bottom is provided with the groove person also can use.When using this kind to agree with member, the leading section that is installed in apparatus body after its elastic distortion is got final product.In this occasion, but the shaping of apparatus body and retaining member one.
Claims (1)
- A kind of by the optic that forms of the deformably resilient material of fixed memory characteristic and be used for this optic is propped up the insertion utensil that is held in the deformable intraocular lens that intraocular support sector constitutes, it is characterized in that this insertion utensil system is by cylindric apparatus body, the shape of one is in the retaining member of the front end of this apparatus body, be provided in one of end after this retaining member and have the lens maintaining part that lens distortion can be become the switching mechanism of less shape, be connected with in the insertion tube of the front end of this lens retaining member, be installed in one on the above-mentioned apparatus body and have and be used for, and the member that agrees with that is used for making above-mentioned switching mechanism remain in closure state that one of is installed on this apparatus body free to advance or retreat constitutes the ejecting mechanism of lens by the push-off pin of the front end release of this insertion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94115696 CN1118247A (en) | 1994-09-09 | 1994-09-09 | Deformable tools for inserting lens into eye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94115696 CN1118247A (en) | 1994-09-09 | 1994-09-09 | Deformable tools for inserting lens into eye |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1118247A true CN1118247A (en) | 1996-03-13 |
Family
ID=5037625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94115696 Pending CN1118247A (en) | 1994-09-09 | 1994-09-09 | Deformable tools for inserting lens into eye |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1118247A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411597C (en) * | 2003-02-08 | 2008-08-20 | 佳能星股份有限公司 | Inserting arrangement for deformable eye crystalline lens |
| CN104869947A (en) * | 2012-12-20 | 2015-08-26 | 人类光学股份公司 | Intraocular lens storage system |
-
1994
- 1994-09-09 CN CN 94115696 patent/CN1118247A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411597C (en) * | 2003-02-08 | 2008-08-20 | 佳能星股份有限公司 | Inserting arrangement for deformable eye crystalline lens |
| CN104869947A (en) * | 2012-12-20 | 2015-08-26 | 人类光学股份公司 | Intraocular lens storage system |
| CN104869947B (en) * | 2012-12-20 | 2016-11-23 | 人类光学股份公司 | Intraocular lens stocking system |
| US9763775B2 (en) | 2012-12-20 | 2017-09-19 | Humanoptics Ag | Intraocular lens storage system |
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