CN1360882A - Insert system for intraocular lenses - Google Patents
Insert system for intraocular lenses Download PDFInfo
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- CN1360882A CN1360882A CN 00137097 CN00137097A CN1360882A CN 1360882 A CN1360882 A CN 1360882A CN 00137097 CN00137097 CN 00137097 CN 00137097 A CN00137097 A CN 00137097A CN 1360882 A CN1360882 A CN 1360882A
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Abstract
One deformable eye crystalline lens embedding system includes one eye crystalline lens; one lens package to store the lens and without stress acting onto the optical part of the lens; one deformer to deform the lens to one reduced size; and one embedding unit with one inserting pipe to embed the deformable lens into eye and one pushing mechanism to push the lens for embedding into eye. The said lens package has also one function of connecting to the embedding unit and one function of acting as one part of the embedding unit.
Description
The present invention relates to a kind of system that is used for a deformable intra-ocular lens is embedded eyes.The example of this deformable intra-ocular lens comprises a kind of deformable intra-ocular lens, it is embedded into ophthalmic and replaces inherent crystalline lens, this carries out when inherent crystalline lens is removed owing to cataract, and a kind of correcting vision crystalline lens, its single goal for correcting vision is embedded into ophthalmic.
Usually, in cataract surgery, an intra-ocular lens is embedded in the eye, and inherent crystalline lens is removed (removing lenticular eyes) from eye, so this intra-ocular lens is positioned at originally the position that is occupied by intrinsic crystalline lens and recovers vision.Since Ridley in 1949 has carried out the implantation of prosthetic lens for the first time, carried out about the material of this intra-ocular lens and the multiple research of shape.
In the last few years, except the research about intra-ocular lens, wherein this crystalline lens was used for the vision restoration after the cataract surgery, had also carried out about the concentrated research that is used for the gauged intra-ocular lens of refracting power.This gauged intra-ocular lens of refracting power that is used for is embedded into eye with correct myopia or hypermetropia, wherein also has an intrinsic crystalline lens (having lenticular eyes) in the eye.
About cataract surgery, be used for having obtained extensive use by a kind of technology that the tissue that ultrasonic emulsification crushing lens tissue also will be crushed siphons away.The operation that this technology makes crystalline lens remove operation cuts lighttight crystalline lens by a little otomy.With the development of operating technology itself, intra-ocular lens itself also has been modified recently.A kind of so improved intra-ocular lens for example is disclosed in, and Japanese patent application discloses among (kokai) No.58-146346.In this intra-ocular lens, optics (optical) part is made by a kind of deformable elastomeric material.This intra-ocular lens is embedded into eyes with a kind of folded state through a little otomy and is reset into its original-shape in eye, allows its enforcement crystalline lens function of its definite (appropriately).
Along with the development of these technology, the material of the opticator of this intra-ocular lens from hard methyl methacrylate (PMMA) to silicones or soft acrylic resin gradually change, this makes intra-ocular lens be embedded in the eye with a kind of folded state.
And in recent years,, and carried out about the research of water wetted material, for example 2-hydroxyethyl methylacrylate (HEMA) about copolymer, for example hydroxyethyl methylacrylate and methylmethacrylate.
In addition, difform intra-ocular lens has been studied and has dropped into actual use, comprises a kind of intra-ocular lens, and it has the opticator and the annular supporting part of a circle of being made by different materials; A kind of intra-ocular lens, its annular supporting part and opticator are made by identical materials; And a kind of intra-ocular lens, it has the supporting part of dish type.
In addition, following patent application has disclosed flush mounting, and it is used for above-mentioned deformable intra-ocular lens is embedded eye with a kind of compression or folded state.
(1) Japanese patent application open (kokai) No.5-103803 has disclosed a kind of device, it so designs so that fixing a folding lenticular retaining element is connected on the main body, and this crystalline lens is arranged on the vertical intubate embedding of retaining element eyes by one.
(2) Japanese patent application open (kokai) No.7-23991 has disclosed a kind of disposable flush mounting, wherein be used for fixing a folding lenticular part and device main body and be integral, and whole device is by resin formation.
(3) Japanese Kohyo (PCT) patent disclosure No.9-506285 has disclosed a kind of device for implanting lens into eye, and it has the more general application of light.In this device for implanting lens into eye, a crystalline lens is remained on the middle zone of preparing of a main body with a kind of unstress state.After a pipe (intubate) was connected to main body, this intra-ocular lens was embedded in the eye by pipe.Described zone line is as a crystalline lens bag.
Traditional intra-ocular lens of describing in (1) and (2) inserts device and has following shortcoming.When any in these install was used, an intra-ocular lens that takes out from bag was placed on the part of device, is deformed, and is embedded in the eye then.Therefore, during practical operation, intra-ocular lens need be placed on the work on this device, thus cause increasing relate to time and the work that intra-ocular lens is implanted.
In addition, a kind of like this intra-ocular lens and flush mounting must be made aseptic by a sterilisation step, because they are embedded in the eye by otomy.But, if operator drops to a sordid surface with crystalline lens and/or flush mounting once in a while in placing operation, for example on floor or the table, will lose aseptic condition, and this crystalline lens and/or flush mounting become useless.
In addition, when the operator correctly is not placed on intra-ocular lens on the device when embedding in the eye by force with one, this crystalline lens may be broken, maybe may be forced to fly out from intubate, causes the infringement to the inside ofeye tissue potentially.
The device for implanting lens into eye of describing in (3) has following shortcoming.Although the zone line of this device can be used as a crystalline lens bag, between the actual operating period, connect a pipe (intubate) and must carry out, because pipe (intubate) is an element that forms separately with main body to the work of main body.Although a kind of technology is arranged, it is stored in zone line with an intra-ocular lens in advance, and this zone is positioned at the central axis of a push rod, and zone line is difficult to be suitable for storing lenticular material and be made by a kind of.In addition, zone line can not be formed having a kind of function, and this function is that to fix the intra-ocular lens with ring-shaped bearing part exactly necessary.That is to say, although this intra-ocular lens must be stored under a kind of state, wherein can keep the opticator of this intra-ocular lens and the angle between the supporting part, the zone line of traditional flush mounting can not provide this angle to keep function.
An object of the present invention is to provide a kind of embedded system that is used for a deformable intra-ocular lens, this system eliminates or has simplified a crystalline lens is placed on an operation on the flush mounting, relate to the time of placing operation thereby saved, solved the shortcoming relevant simultaneously with traditional flush mounting, lenticular breaking or incorrect embedding for example, this otherwise will cause by an operator's maloperation.
Another object of the present invention provides a kind of embedded system that is used for a deformable intra-ocular lens, and this system can guarantee that an operator freely selects a kind of intra-ocular lens and a kind of flush mounting according to selected method or patient's state.
To achieve these goals, the invention provides a kind of embedded system that is used for a deformable intra-ocular lens, comprising: a intra-ocular lens with a deformable opticator; One is used for described crystalline lens is stored in crystalline lens bag under a kind of state, does not wherein have stress on this lenticular opticator; Be used to make described crystalline lens to be deformed to a kind of anamorphic attachment for cinemascope that reduces size; And the flush mounting with an intubate and a propulsive mechanism, being embedded in the eye by described intubate deformable lens, described propulsive mechanism is used for promoting described crystalline lens and it is embedded eye.Described crystalline lens bag has a kind of function and a kind of function that is used as by the part of mechanism that flush mounting provides that is connected to flush mounting.
Eliminate or simplified according to embedded system of the present invention and a kind of intra-ocular lens is taken out and crystalline lens is placed on operation on the flush mounting from the crystalline lens box.In addition, embedded system according to the present invention has prevented faulty operation, thereby has improved safety.In addition, this embedded system guarantees that an operator freely selects a kind of intra-ocular lens and a kind of flush mounting, thereby realizes at a kind of choosing operational approach then or the optimization of the intra-ocular lens embedded system of patient's states.
Preferably, described anamorphic attachment for cinemascope and described intubate are integrally formed.In this case, be used to make the structure of the flush mounting of intra-ocular lens distortion to be simplified.
Preferably, described anamorphic attachment for cinemascope of at least a portion and described crystalline lens bag are integrally formed.In this case, be used to make the structure of the flush mounting of intra-ocular lens distortion to be simplified.
Preferably, when described crystalline lens bag is connected to described flush mounting, the central axes of a push rod of lenticular center and formation propulsive mechanism.By connecting the operation of described crystalline lens bag to flush mounting, this structure guarantees that this intra-ocular lens is positioned at a position that is used to use automatically.
Preferably, described embedded system also comprises a crystalline lens travel mechanism that is used for crystalline lens is moved to from the spare space embedded location, central axis at the lenticular center of standby position with a push rod that constitutes propulsive mechanism does not overlap, in the central axes of lenticular center, embedded location place and push rod.This structure guarantees that described crystalline lens bag has a kind of other function of non-storage crystalline lens function.An example of this other function is to keep the opticator of this intra-ocular lens and the angle between the supporting part.In addition, by moving lenticular simple operations, described intra-ocular lens embedded system can be brought into a kind of user mode.
In conjunction with the accompanying drawings, about detailed description of preferred embodiment other purpose of the present invention, characteristics and the easier quilt of advantage will be understood by following, wherein:
Fig. 1 represents the perspective view that a kind of intra-ocular lens embedded system according to the present invention constitutes;
Fig. 2 A and 2B are the view of expression according to intra-ocular lens embedded system one first embodiment of the present invention, and wherein Fig. 2 A is the front view with flush mounting of a crystalline lens box, and Fig. 2 B is a bottom view of this flush mounting;
Fig. 3 A to 3D is the view of crystalline lens box shown in the presentation graphs 2A, and wherein Fig. 3 A is a plane graph of crystalline lens box, and Fig. 3 B is a left view of crystalline lens box, and Fig. 3 C is a right view of crystalline lens box, and Fig. 3 D is the profile along the 3D-3D line of Fig. 3 A;
Fig. 4 is and the corresponding front view of Fig. 2 A, represents a kind of state, and wherein said crystalline lens box separates with flush mounting;
Fig. 5 is a view, a kind of modification of first embodiment shown in presentation graphs 2A and the 2B;
Fig. 6 is a front view, and expression is used in a modification of the intubate among first embodiment;
Fig. 7 A and 7B are views, expression is according to second embodiment of intra-ocular lens embedded system of the present invention, wherein Fig. 7 A is a front view of flush mounting, represent a kind of state, wherein the crystalline lens box has been connected to flush mounting and intra-ocular lens and has been positioned at first or the spare space, Fig. 7 B is a front view of flush mounting, represents a kind of state, and wherein crystalline lens is positioned at second or embedded location;
Fig. 8 A to 8C is the view of a kind of state of expression, wherein the crystalline lens box separates with the flush mounting shown in Fig. 7 A and the 7B, wherein Fig. 8 A is a front view of flush mounting, and Fig. 8 B is an amplification view of crystalline lens box, and Fig. 8 C is a profile along Fig. 8 B line 8C-8C;
Fig. 9 A and 9B are the profile of crystalline lens box along Fig. 8 A line 9-9, and wherein Fig. 9 A represents a kind of state, and intra-ocular lens is positioned at a spare space in this state, and Fig. 9 B represents a kind of state, and the wherein lenticular element that is pressed into is positioned at an on position;
Figure 10 A and 10B are the views of expression second embodiment, and wherein Figure 10 A is the profile along Fig. 7 A line 10A-10A, and Figure 10 B is the profile along Fig. 7 B line 10B-10B;
Figure 11 is the front view of a flush mounting, and expression is in a kind of remodeling of second embodiment shown in a kind of Fig. 7 A of state and the 7B, and a crystalline lens box separates with flush mounting in this state;
Figure 12 represents and Figure 10 A and the corresponding profile of 10B, and the another kind of second embodiment shown in presentation graphs 7A and 7B remodeling, and wherein the crystalline lens box has the base portion of a change;
Figure 13 is a plane graph, an expression improvement example of the intubate of flush mounting in a second embodiment.
Below with reference to accompanying drawings embodiments of the invention are described.
Fig. 1 represents the perspective view that a kind of intra-ocular lens embedded system according to the present invention constitutes.
System according to the invention mainly is made up of a crystalline lens box 10 and a flush mounting 30, and wherein box 10 is as a crystalline lens bag that stores an ophthalmic crystalline lens 20, and device 30 is used for intra-ocular lens 20 is embedded patient's eye.
Said structure has been realized design of the present invention, and therefore when the crystalline lens box 10 as a crystalline lens bag was connected to flush mounting 30, crystalline lens box 10 was as the part by flush mounting 30 mechanism that provides.
Fig. 2 A and 2B be expression according to the view of intra-ocular lens embedded system first embodiment of the present invention, wherein Fig. 2 A is the front view of crystalline lens box 10 device 30 when being connected to flush mounting 30, Fig. 2 B is a bottom view of flush mounting 30.
The tubular body 31 of flush mounting 30 is made by transparent or semitransparent plastics, so that the diameter of bottom 31a is littler than the diameter of top 31b.The central axis place that above-mentioned push rod 33 is located at tubular body 31 is set, and the through hole of tapered cannula 32 is aimed at the central axis of tubular body 31.
Above-mentioned conjugate foramen 36 is formed on the horizontal zone of coupling part 35, and groove be formed on coupling part 35 the front side vertical wall on the rear surface.Conjugate foramen 36 and groove 37 make crystalline lens box 10 with respect to 35 location, coupling part together.
From Fig. 3 A to 3D, can clearly be seen that, crystalline lens box 10 constitutes by assembling crystalline lens box top 11 and crystalline lens box bottom 12, on top 11, place intra-ocular lens 20, form crystalline lens box bottom 12 is placed on intra-ocular lens 20 on the crystalline lens box top 11 with covering upper surface.
Fig. 3 A is a plane graph of crystalline lens box, and Fig. 3 B is a left view of crystalline lens box, and Fig. 3 C is a right view of crystalline lens box, and Fig. 3 D is the profile along the 3D-3D line of Fig. 3 A;
A slotted recess 11a is formed on the upper surface at crystalline lens box top 11, so that recess 11a extends along the horizontal direction of Fig. 3 A.The supporting part 22 of intra-ocular lens 20 that is used for supporting the opticator 21 of intra-ocular lens 20 is arranged on recess 11a.The above-mentioned projection 14 that cooperates with the conjugate foramen 36 of coupling part 35 is formed on the lower surface at crystalline lens box top 11, and is positioned at from Fig. 3 A center slightly a position to right avertence.Be formed for covering the crystalline lens box bottom 12 of crystalline lens box top 11 upper surfaces,, cover the upper surface and periphery (side) surface at crystalline lens box top 11 simultaneously so that crystalline lens box bottom 12 can be mounted on the crystalline lens box top 11.Above-mentioned through hole 13 is formed among left and right wall 12a and the 12b, and when being connected to coupling part 35 with convenient crystalline lens box 10, the center of through hole 13 is aimed at the central axis of the tubular body 31 of flush mounting 30.
The detailed step of placing crystalline lens box 10 is as described below.At first, intra-ocular lens 20 is placed on crystalline lens box top 11, so that the opticator 21 of crystalline lens 20 is corresponding with the recess 11a at crystalline lens box top 11, and the opticator 21 of intra-ocular lens 20 and supporting part 22 are supported by the marginal portion of recess 11a.Secondly, crystalline lens box bottom 12 is placed on the crystalline lens box top 11, so that form a space 15 between crystalline lens box bottom 12 and crystalline lens box top 11.Space 15 has certain shape and size, so that the motion of restriction intra-ocular lens in space 15.In addition, the shape of determining space 15 is not so that the opticator 21 of intra-ocular lens 20 contacts with the inner surface of the inner surface at crystalline lens box top 11 or crystalline lens box bottom 12, thereby the optical characteristics that prevents opticator 21 during the long term storage is owing to the power that is applied on the opticator 21 changes.
The diameter of the through hole 13 of crystalline lens box 10 reduces gradually to its top.Intra-ocular lens 20 and push rod 33 pass through hole 13.After crystalline lens box 10 was connected to flush mounting 30, push rod 33 advanced by the operation of propulsive mechanism 34.As a result, the intra-ocular lens 20 in the crystalline lens box 10 is deformed to a less size gradually and moves on in the intubate 32.Then, after the top of intubate 32 32a was inserted in the eye by formation otch thereon, push rod 33 was advanced further, so intra-ocular lens 20 is deformed to a littler size by intubate 32, be pushed then pleasing to the eye in.
Therefore, crystalline lens box 10 provides the function of a part of flush mounting 30 when being connected to flush mounting 30.
Fig. 3 B and 3D represent that the diameter of the through hole 13 of crystalline lens box 10 reduces gradually to its top.That is to say, the trans D C in space 15 is reduced to the trans D D that a diameter of measuring with through hole 13 top ends is consistent, as shown in Fig. 3 B, wherein space 15 holds the intra-ocular lens 20 on the crystalline lens box top 11 that is placed on crystalline lens box 10, as shown in Fig. 3 D.This structure makes intra-ocular lens 20 become a deformation state from a non-deformation state, moves through through hole 13 by push rod 33 simultaneously.
On the top, through hole 13 has a vertical symmetric shape.In addition, form one to the outstanding guide rail 16 in through hole 13 centers so that guide rail 16 within the eye the direction that moves of crystalline lens 20 extend.This structure makes intra-ocular lens 20 form a kind of predetermined shape.
Fig. 4 is a front view, represents a kind of state, and wherein said crystalline lens box 10 separates with the flush mounting 30 that is used in according among first embodiment of intra-ocular lens embedded system of the present invention.With the corresponding position of the height A of crystalline lens box 10,35 front side vertical wall forms groove 37 on the rear surface in the coupling part.The recessed function of groove 37 prevent the crystalline lens box 10 that connects and coupling part 35 do not expect separate.The projection 14 of crystalline lens box 10 and the conjugate foramen 36 of coupling part 35 have certain shape and size, and they guarantee to set up betwixt a cooperation, so the relative position between them can be fixed.These mechanisms guarantee that the crystalline lens box 10 shown in Fig. 2 A is connected to flush mounting 30.
Fig. 4 represents an example, and wherein crystalline lens box 10 is connected to flush mounting 30 from above.But, the invention is not restricted to the connection of this form, also can adopt the method for attachment of other form.In detail, carry the crystalline lens box 10 of intra-ocular lens 20 and place on the table with a kind of state, wherein the projection 14 at crystalline lens box top 11 is towards last; Flush mounting 30 is upside down on the crystalline lens box 10 so that cover it from above.
Because this intra-ocular lens embedded system must be used in a kind of gnotobasis, so between the actual operating period of embedded system, an operator must wear glove and use this system, this has hindered accurate operation.Therefore, above-mentioned method of attachment is preferred, wherein realizes the connection of crystalline lens boxes 10 by mobile flush mounting 30, installs 30 bigger and be easier to hand than crystalline lens box 10.
Fig. 5 is a view, a kind of modification of first embodiment shown in presentation graphs 2A and the 2B.Replace being arranged on the conjugate foramen 36 on the coupling part 35, an engaging groove 38 is set.Engaging groove 38 extends on the direction perpendicular to push rod 33.Crystalline lens box 10 is connected to flush mounting 30 and fixing by a groove 39 from its side.Part except that above-mentioned part be marked by be used in Fig. 2 in the identical reference number of label, save being repeated in this description of they.
In this embodiment, also can use method of attachment among above-mentioned first embodiment.That is to say that crystalline lens box 10 is placed on the desk; Flush mounting 30 is upside down on the crystalline lens box 10 from above.This method of attachment has the effect identical with above-mentioned method of attachment.
Fig. 6 is a front view, and expression is used in a modification of the intubate 32 among first embodiment.
Intubate 32 shown in Fig. 6 has a conical through-hole, and its diameter reduces gradually to its top.Therefore, the intra-ocular lens 20 that pushes the bottom 32b of intubate 32 by push rod 33 can be deformed to a less size.
Shown a kind of intra-ocular lens embedded system of design like this, so as when the crystalline lens box 10 of a crystalline lens bag to be on being connected to flush mounting 30 part of functions of generator 30.In addition, in the above-described embodiments, crystalline lens box 10 and intubate 32 form the anamorphic attachment for cinemascope that makes intra-ocular lens 20 distortion.But, the invention is not restricted to this, and the structure of this system can be changed and has different shapes; For example a kind of structure wherein has only crystalline lens box 10 to be used to make intra-ocular lens 20 to be deformed to the small size that is suitable for embedding ophthalmic, and the crystalline lens box 10 of so distortion is by intubate 32 and be embedded into ophthalmic; And a kind of structure, wherein anamorphic attachment for cinemascope is not arranged on the crystalline lens box 10, and is arranged on the intubate 32.
In the above-described embodiments, intra-ocular lens 20 has the supporting part 22 of dish type, and extend its opposite end from opticator 21.
In this description, " " center " of intra-ocular lens 20 refers to the center on the thickness direction on the optical axis that is positioned at opticator 21 to term.
Below with reference to Fig. 7 A to Figure 13 second embodiment of intra-ocular lens embedded system according to the present invention is described.In this embodiment, flatly being stored in one moves between one first or spare space and one second or embedded location as the intra-ocular lens 50 in the crystalline lens box 40 of a crystalline lens bag, wherein the lengthwise position at intra-ocular lens 50 centers, primary importance place not with the central axes of the push rod 33 of flush mounting 30, in the central axes of the push rod 33 of the lengthwise position at intra-ocular lens 50 centers, second position place and flush mounting 30, so intra-ocular lens 50 can be released by push rod 33.
Fig. 7 A is a front view of flush mounting 30, wherein crystalline lens box 40 has been connected to flush mounting 30 and intra-ocular lens 50 and has been positioned at first or the spare space, Fig. 7 B is a front view of flush mounting 30, and wherein intra-ocular lens 50 is positioned at second or embedded location.
In first or spare space shown in Fig. 7 A, the lengthwise position at crystalline lens center not with central axes by the push rod 33 of the alternative dotted line L of length representative.When the propulsion element 43 at crystalline lens box top 41 when the below of Fig. 7 A promotes, intra-ocular lens 50 is moved down into second or embedded location shown in Fig. 7 B, the lengthwise position at these intra-ocular lens 50 centers, place basically with the central axes of push rod 33.Second or embedded location in, the forward travel of the push rod 33 that the propulsive mechanism 34 of the rear end 31a by being arranged on tubular body 31 is realized, intra-ocular lens 50 can be released by the top 32a from intubate 32 and go forward side by side into ophthalmic.
Fig. 8 A to 8C is the view of a kind of state of expression, and wherein crystalline lens box 40 separates with flush mounting 30.In detail, Fig. 8 A is a front view of flush mounting 30, and Fig. 8 B is an amplification view of crystalline lens box 40, and Fig. 8 C is a profile along Fig. 8 B line 8C-8C.
Coupling part 35 is connected on the flush mounting 30 shown in Fig. 8 A in advance.Crystalline lens box 40 comprises a crystalline lens box top 41 and a crystalline lens box bottom 42, and it has a kind of structure that is suitable for supporting the intra-ocular lens 50 with ring-shaped bearing part 52, and supporting part 52 is made by a kind of material that is different from opticator 51.In detail, crystalline lens box bottom 42 has bonding part 42b, and it has in vertical relatively upwardly extending angle is the inclined surface 42a of θ, with the opticator 51 of maintenance intra-ocular lens 50 and the angle θ between the supporting part 52.Crystalline lens box top 41 has inclination at its bottom surface 41b surface cooperates with the inclined surface 42a with crystalline lens box bottom 42.After on crystalline lens 50 being placed on crystalline lens box bottom 42, crystalline lens box top 41 is placed on the crystalline lens box bottom 42, so the supporting part 52 of crystalline lens 50 is sandwiched between crystalline lens box bottom 42 and the crystalline lens box top 41.
As mentioned above, crystalline lens box top 41 is provided with propulsion element 43.Shown in Fig. 9 A and 9B, crystalline lens box bottom 42 has one to be positioned at hole 42c on its top surface and one and to be positioned near the opposing sidewalls 42d lower end projection 42e.Near projection 42e the engage step 38 with being formed on 35 side surface lower ends, coupling part flexibly engages.The longitudinal relative end of crystalline lens box bottom 42 is opened, and gives crystalline lens box bottom 42 1 squarish C shape cross sections.In addition, paired bonding part 42b is formed on the inner surface of sidewall 42d, to be positioned at the position near the center in vertical direction.Bonding part 42b is at longitudinal extension and be suitable for holding the opticator 51 of intra-ocular lens 50 and the peripheral part of supporting part 52.Shown in Fig. 8 C, each inclined surface 42a that all has a tiltangle is formed on the 42b of bonding part, so that keep the opticator 51 of intra-ocular lens 50 and the angle θ between the supporting part 52.
Be inserted into the element 41a that nips that the crystalline lens box top 41 among the top surface hole 42c of crystalline lens box bottom 42 has a hollow, it has an orthogonal shaped as frame shape, and above-mentioned propulsion element 43 is arranged among the element 41a that nips so that can move in vertical direction.The part that the bottom surface 41b of element 41a of nipping has an inclination is to contact with the inclined surface 42a of the bonding part 42b of crystalline lens box bottom 42.Upper and lower recess 41d and 41e are formed on each inner surface 41c of opposing sidewalls with predetermined space, so upper recess 41d toward each other, and lower concave part 41e toward each other.
Above-mentioned propulsion element 43 is inserted into the hole 41f of the element 41a that nips and is pressed downward, so that intra-ocular lens 50 is moved to embedded location from the spare space.Propulsion element 43 has the shank 43b of a large diameter head 43a and a prism-shaped.Projection 43c is formed near its periphery surface and its lower end, so that selectively engaged with upper recess 41d or the lower concave part 41e of the element 41a that nips.In detail, in the spare space, the projection 43c of propulsion element 43 cooperates with recess 41d, and when propulsion element 43 was pressed, projection 43c moved down and engages with recess 41e.A concave surface 43d is formed on the bottom surface of shank 43a, and a ridge 43f who is used to support intra-ocular lens 50 peripheral parts is formed on concave surface 43d.
When intra-ocular lens 50 will move to second or embedded location shown in Figure 10 B from first or spare space shown in Figure 10 A, the head 43a of the propulsion element 43 at crystalline lens box top 41 is pressed downward, therefore intra-ocular lens 50 moves to a crystalline lens movable part 39 of coupling part 35, and wherein intra-ocular lens 50 is bitten by the crystalline lens box of crystalline lens box 40 bottom 42 and crystalline lens box top 41.Crystalline lens movable part 39 has a kind of recessed curved surface groove shape.Therefore, the peripheral part of intra-ocular lens 50 engages with the reverse side of the hole raised edges 39b at the place, hole that is arranged on a curved recessed portion 39a.As the result of this motion, the upright position at crystalline lens 50 centers basically with the central axes of push rod 33.When push rod 33 advanced, intra-ocular lens 50 was along moving in the space 15 of crystalline lens movable part 39 with the vertical direction of Figure 10 B place page or leaf, through and the intubate 32 that is wholely set of coupling part 35, be pushed then pleasing to the eye in.Because when propulsion element 43 was pressed, projection 43c engaged with recess 41e, is prevented from presenting its original shape again so be moved to the intra-ocular lens 50 of crystalline lens movable part 39, and has realized reliable location.
In addition, can check and allow whether space 15 that intra-ocular lens 50 moves is formed between the crystalline lens movable part 39 of the lower surface at crystalline lens box top 41 and coupling part 35.In other words, the propulsion element 43 at crystalline lens box top 41 provides two functions; Promptly move down the function of crystalline lens 50 and form the function of crystalline lens mobile space 15 with coupling part 35.
As mentioned above, the crystalline lens box 40 of second embodiment provides the part of functions of flush mounting 30 on linking device 30 time, wherein crystalline lens box 40 comprises crystalline lens box bottom 42 and crystalline lens box top 41, and top 41 comprises nip element 41a and propulsion element 43.
In addition, this embodiment is characterised in that: being used to make intra-ocular lens 50 to be deformed to one, to reduce a part and the crystalline lens box 40 of anamorphic attachment for cinemascope of size integrally formed.
That is to say that when crystalline lens 50 moved to the crystalline lens movable part 39 of coupling part 35, this crystalline lens was deformed to one and reduces size.Reducing of this size by three design features realizations; Promptly form a kind of crystalline lens movable part 39 of curved surface flute profile formula, be moved the crystalline lens 50 of being pressed to crystalline lens movable part 39 by crystalline lens box top 41 simultaneously, and the size J of the crystalline lens movable part 39 littler than the size K of crystalline lens 50.
Figure 11 is the front view of a flush mounting, and expression is in a kind of remodeling of second embodiment shown in a kind of Fig. 7 A of state and the 7B, and crystalline lens box 40 separates with flush mounting 30 in this state.
In this remodeling, crystalline lens box 40 is connected to flush mounting in a kind of mode that is different from reference to Fig. 7 A and 7B institute describing mode, and wherein crystalline lens box 40 is connected to the coupling part 35 of flush mounting 30 from above.That is to say that when the crystalline lens box 40 that is in inversion state was placed on the crystalline lens box supporting member 60, flush mounting 30 was squeezed, and the coupling part 35 of flush mounting 30 is assembled to flexibly on the crystalline lens box bottom 42 of crystalline lens box 40.All the other structures are identical with above-mentioned second embodiment's.
Between the operating period, an operator wears glove in this embedded system, this overslaugh accurate operation.Therefore, the connection of crystalline lens box 40 is best to be carried out with a kind of method, and wherein the operator is placed on crystalline lens box 40 on the supporting member, and flush mounting 30 is held in the hands, this device is bigger and be easy to hold than crystalline lens box 40, from top it is installed on the crystalline lens box 40 then.
Figure 12 represents and Figure 10 A and the corresponding profile of 10B, and the another kind of second embodiment shown in presentation graphs 7A and 7B remodeling, and wherein the crystalline lens box has the base portion of a change.
Have a hole 72a according to the crystalline lens box of a crystalline lens box 70 of the present invention bottom 72 at its top surface, and on of opposing sidewalls 72b, also have an engaging groove 72c.Engaging groove 72c runs through corresponding sidewall 72b on the direction that embeds direction perpendicular to crystalline lens, and crystalline lens box bottom 72 is inserted by engaging groove 72c in coupling part 35.When crystalline lens box bottom 72 was connected to coupling part 35, the relative localization between crystalline lens box bottom 72 and the coupling part 35 was realized by being formed on a raised edges 72d among the engaging groove 72c and the inner surface of sidewall 72b.
In addition, those skilled in the art finds that crystalline lens box 70 is easy to be connected to flush mounting 30 by another kind of method, one of them operator is put crystalline lens box 70 on the table, flush mounting 30 is held in the hands, and by engaging groove 72c is packed in the crystalline lens box 70 in coupling part 35.
Between the operating period, an operator wears glove in this embedded system, this overslaugh accurate operation.Therefore, the connection of crystalline lens box 70 is best to be carried out with a kind of method, and wherein the operator is placed on crystalline lens box 70 on the supporting member, and flush mounting 30 is held in the hands, this device is bigger and be easy to hold than crystalline lens box 70, from the one side it is installed on the crystalline lens box 70 then.
All the other structures are identical with above-mentioned second embodiment's.When intra-ocular lens 50 will be embedded in the eye, the propulsion element 73 at crystalline lens box top 71 is pressed downward, thereby with the crystalline lens movable part 39 of intra-ocular lens 50 shift-in coupling parts 35, intra-ocular lens 50 is embedded into the eye from the intubate top by moving ahead of push rod 33 then.
Figure 13 is a plane graph, an expression improvement example of the intubate 32 of flush mounting 30 in a second embodiment.
In this modification, intubate 32 is integrally formed with the coupling part 35 of flush mounting 30, so that flute profile curved recessed portion 39a as the crystalline lens anamorphic attachment for cinemascope is formed on the bottom end side of intubate 32.
Obviously, can carry out multiple modification of the present invention and variation according to above-mentioned enlightenment.Therefore be appreciated that within the scope of the appended claims the present invention can have the multiple application except that top detailed description.
Claims (5)
1. embedded system that is used for intra-ocular lens comprises:
Intra-ocular lens with a deformable opticator;
One is used for described crystalline lens is stored in crystalline lens bag under a kind of state, does not wherein have stress on this lenticular opticator;
Be used to make described crystalline lens to be deformed to an anamorphic attachment for cinemascope that reduces size; And
Flush mounting with an intubate and a propulsive mechanism is embedded in the eye by described intubate deformable lens, and described propulsive mechanism is used for promoting described crystalline lens and it is embedded eye, it is characterized in that:
Described crystalline lens bag has a kind of function and a kind of function that is used as by the part of mechanism that flush mounting provides that is connected to described flush mounting.
2. the embedded system that is used for intra-ocular lens according to claim 1 is characterized in that: described anamorphic attachment for cinemascope and described intubate are integrally formed.
3. the embedded system that is used for intra-ocular lens according to claim 1 is characterized in that: described anamorphic attachment for cinemascope of at least a portion and described crystalline lens bag are integrally formed.
4. the embedded system that is used for intra-ocular lens according to claim 1 is characterized in that: when described crystalline lens bag is connected to described flush mounting, and the central axes of a push rod of described lenticular center and the described propulsive mechanism of formation.
5. the embedded system that is used for intra-ocular lens according to claim 1, it is characterized in that: also comprise a crystalline lens travel mechanism that is used for described crystalline lens is moved to from a spare space embedded location, central axis at the described lenticular center of this standby position with a push rod that constitutes described propulsive mechanism does not overlap, and states the central axes of lenticular center and described push rod in the embedded location place.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001370979A CN100488472C (en) | 2000-12-29 | 2000-12-29 | Insert system for intraocular lenses |
| HK02108672.6A HK1047030A1 (en) | 2000-12-29 | 2002-11-29 | Insertion system for intraocular lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001370979A CN100488472C (en) | 2000-12-29 | 2000-12-29 | Insert system for intraocular lenses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1360882A true CN1360882A (en) | 2002-07-31 |
| CN100488472C CN100488472C (en) | 2009-05-20 |
Family
ID=4597654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001370979A Expired - Lifetime CN100488472C (en) | 2000-12-29 | 2000-12-29 | Insert system for intraocular lenses |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100488472C (en) |
| HK (1) | HK1047030A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973795B (en) * | 2005-12-02 | 2010-06-23 | 尼德克株式会社 | Intraocular lens embedding system |
| CN112515815A (en) * | 2019-09-17 | 2021-03-19 | 富螺(上海)医疗器械有限公司 | Intraocular lens injector and method for implanting intraocular lens |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4681102A (en) * | 1985-09-11 | 1987-07-21 | Bartell Michael T | Apparatus and method for insertion of an intra-ocular lens |
| US5304182A (en) * | 1992-09-23 | 1994-04-19 | Kabi Pharmacia Ophthalmics, Inc. | Apparatus and method for curling and inserting flexible intraocular lenses |
| ES2284170T3 (en) * | 1995-05-24 | 2007-11-01 | Staar Surgical Company | INJECTION SYSTEM FOR A DEFORMABLE INTRAOCULAR LENS. |
| US5944725A (en) * | 1996-09-26 | 1999-08-31 | Bausch & Lomb Surgical, Inc. | Method and apparatus for inserting a flexible membrane into an eye |
| US5947975A (en) * | 1997-03-07 | 1999-09-07 | Canon Staar Co., Inc. | Inserting device for deformable intraocular lens |
-
2000
- 2000-12-29 CN CNB001370979A patent/CN100488472C/en not_active Expired - Lifetime
-
2002
- 2002-11-29 HK HK02108672.6A patent/HK1047030A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973795B (en) * | 2005-12-02 | 2010-06-23 | 尼德克株式会社 | Intraocular lens embedding system |
| CN112515815A (en) * | 2019-09-17 | 2021-03-19 | 富螺(上海)医疗器械有限公司 | Intraocular lens injector and method for implanting intraocular lens |
| CN112515815B (en) * | 2019-09-17 | 2023-12-26 | 富螺(上海)医疗器械有限公司 | Intraocular lens injector and intraocular lens implantation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100488472C (en) | 2009-05-20 |
| HK1047030A1 (en) | 2003-02-07 |
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