阅读说明：本技术 一种人工晶状体定位器 (Artificial crystalline lens positioner ) 是由 叶飞飞 曾存芳 于 2021-01-14 设计创作，主要内容包括：本发明涉及医疗器械技术领域,公开一种用于人工晶体缝线固定术的人工晶状体定位器,包括透明角膜部,角膜部的中央开设有通气孔、边缘设有穿刺孔定位襻、靠近中央位置设有人工晶状体光学部定位线、靠近边缘位置设有角膜缘定位线,穿刺孔定位襻设置有2个或3个,分别适用于植入两襻或三襻式人工晶状体,穿刺孔定位襻上设有多个均匀分布的穿刺孔以适应不同型号的人工晶状体；使用时,先将角膜缘定位线与患者角膜边缘重合实现自身定位,然后即可从穿刺孔定位襻上的穿刺孔进针,当调整人工晶状体与人工晶状体光学部定位线重合时,人工晶状体即位置居中,定位方便快捷,避免只能依赖于医生经验目测定位,利于提高手术质量。(The invention relates to the technical field of medical instruments, and discloses an intraocular lens positioner for intraocular lens suture fixation, which comprises a transparent cornea part, wherein the center of the cornea part is provided with an air vent, the edge of the cornea part is provided with a puncture hole positioning loop, an intraocular lens optical part positioning line is arranged at a position close to the center, a corneal edge positioning line is arranged at a position close to the edge, 2 or 3 puncture hole positioning loops are respectively suitable for implanting two-loop or three-loop intraocular lenses, and a plurality of puncture holes which are uniformly distributed are arranged on the puncture hole positioning loop to adapt to intraocular lenses of different models; when the positioning line is adjusted to coincide with the intraocular lens optical part positioning line, the intraocular lens is positioned in the middle, the positioning is convenient and fast, the situation that the positioning can be performed only by visual inspection of doctor experience is avoided, and the operation quality is improved.)

1. An artificial lens positioner is characterized by comprising a cornea part, wherein the cornea part is a transparent arc-shaped body, the center of the cornea part is provided with a vent hole, and the edge of the cornea part is provided with a puncture hole positioning loop; the cornea part is provided with an intraocular lens optical part positioning line near the center, and the cornea part is provided with a corneal edge positioning line near the edge.

2. The intraocular lens positioner of claim 1, wherein there are 2 piercing haptics disposed on opposite sides of the corneal portion.

3. The intraocular lens positioner of claim 1, wherein there are 3 piercing haptics and the angle between adjacent piercing haptics is 120 degrees.

4. The intraocular lens positioner according to claim 1, wherein 3 to 5 puncture holes are provided in the puncture hole positioning tab, and the puncture holes have a diameter of 0.5 mm.

5. The intraocular lens positioner of claim 1, wherein the corneal section has a diameter of 14 to 16mm, a thickness of 0.09mm, and a base curve radius of 8.6 mm; the diameter of the vent hole is 1-2 mm, the diameter of the positioning line of the optical part of the intraocular lens is 6mm, and the diameter of the corneal limbus positioning line is 12 mm.

6. The intraocular lens positioner of claim 4, wherein the puncture holes are spaced 1mm apart.

7. The intraocular lens positioner of claim 5, wherein the intraocular lens optic positioning lines are provided with 3-5 optic auxiliary positioning lines on the inner and outer sides, and the spacing between the lines is 0.25 mm.

8. The intraocular lens positioner of claim 5, wherein the limbal positioning lines are provided with 3-5 limbal auxiliary positioning lines on the inner and outer sides, the spacing between the lines being 0.5 mm.

9. The intraocular lens positioner of claim 1, wherein the corneal section is made of a silicone hydrogel having a water content of 36%.

Technical Field

The invention relates to the technical field of medical instruments, discloses an ophthalmic surgical instrument, and particularly relates to an intraocular lens positioner.

Background

An Intraocular lens (IOL), also called an Intraocular lens, is an Intraocular lens implanted in an eye, and is used to replace the natural crystalline lens, and when the natural crystalline lens is lost due to cataract extraction or other surgery, traumatic cataract causes rupture of the capsular sac and/or zonules of the natural crystalline lens, and the capsular sac after cataract surgery is ruptured, an Intraocular lens is implanted by performing an Intraocular lens suture fixing surgery.

The intraocular lens generally consists of a circular optical part and a peripheral supporting loop, the diameter of the optical part is generally about 5.5-6 mm, the supporting loop is used for fixing the intraocular lens, the number of the supporting loops is generally 2-3, the supporting loops are various in shape and are generally C-shaped, and during an intraocular lens suture fixing operation process, the intraocular lens needs to be implanted firstly, the position is adjusted to center the intraocular lens, and then ligation suture fixing is carried out on the supporting loop; therefore, the operation has high requirements on the puncture point positioning and the intraocular lens position, if the positioning is inaccurate, the postoperative intraocular lens is easy to decenter, shift, incline and the like, the vision of a patient is affected or symptoms such as dizziness, discomfort and the like are caused, supplementary suture fixation needs to be carried out again, and secondary injury is caused to the patient.

At present, puncture point positioning and intraocular lens position adjustment of an intraocular lens suture fixing operation are mainly determined by visual inspection of a doctor who is a main knife, the requirement on the experience level of the doctor is high, and the operation quality is not guaranteed, so that a device capable of helping the doctor to perform puncture point positioning and intraocular lens position adjustment is urgently needed.

In view of this, the invention is particularly proposed.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention aims to provide an intraocular lens positioner which can help a doctor conveniently position a puncture point and adjust the position of an intraocular lens so as to keep the puncture point centered.

The technical scheme adopted by the invention is that the artificial lens positioner comprises a cornea part, wherein the cornea part is a transparent arc-shaped body; the central part of the cornea part is provided with a vent hole, the edge of the cornea part is provided with a puncture hole positioning loop, the position of the cornea part close to the edge is provided with a corneal edge positioning line, and the position of the cornea part close to the central part is provided with an intraocular lens optical part positioning line.

When the artificial lens is used for implanting two loop type artificial lenses, 2 puncture hole positioning loops are arranged on the opposite side positions of the corneal part; when the three-loop type intraocular lens is implanted, 3 puncture hole positioning loops are arranged, and the included angle between adjacent puncture hole positioning loops is 120 degrees.

Preferably, 3-5 puncture holes are formed in the puncture hole positioning loop, the diameter of each puncture hole is 0.5mm, and the interval between every two adjacent puncture holes is 1 mm.

Preferably, the diameter of the corneal part is 14-16 mm, the thickness is 0.09mm, and the radius of the base arc is 8.6 mm; the diameter of the vent hole is 1-2 mm, the diameter of the positioning line of the optical part of the intraocular lens is 6mm, and the diameter of the corneal limbus positioning line is 12 mm.

Preferably, 3-5 auxiliary positioning lines for the optical part are arranged on the inner side and the outer side of the positioning line of the optical part of the artificial lens, and the interval between the auxiliary positioning lines is 0.25mm, so that the artificial lens is suitable for artificial lenses of different models.

Preferably, the inner side and the outer side of the corneal limbus positioning line are provided with 3-5 corneal limbus auxiliary positioning lines, and the interval between the corneal limbus auxiliary positioning lines is 0.5mm, so that the corneal limbus positioning line can adapt to corneas of different sizes.

Preferably, the cornea part is made of silicon hydrogel, and the water content of the silicon hydrogel is 36%.

The invention has the following beneficial effects:

1. the cornea part of the artificial lens positioner is a transparent arc-shaped body and can be attached to the cornea of a patient, the artificial lens positioner is placed on the cornea of the patient during an operation, the artificial lens positioner is moved to enable the limbus positioning line to be overlapped with the limbus edge of the patient to complete positioning, and a doctor can insert a needle from a puncture hole on the puncture hole positioning loop; when the intraocular lens needs to be positioned, when the intraocular lens is moved to enable the edge of the intraocular lens to coincide with the positioning line of the optical part of the intraocular lens, the intraocular lens is positioned at the center, the positioning operation is simple, convenient and quick, the dependence on the experience of doctors can be reduced, and the operation quality is improved.

2. The center of the artificial lens positioner is provided with the vent hole, so that air bubbles generated between the artificial lens positioner and the cornea can be naturally discharged.

3. The artificial lens optical part positioning line of the artificial lens positioner is internally and externally provided with an optical part auxiliary positioning line, the inner side and the outer side of the cornea positioning line are provided with cornea edge auxiliary positioning lines, and the puncture hole positioning loop is provided with a plurality of puncture holes, so that the artificial lens positioner can adapt to artificial lenses of different models and different cornea sizes of patients.

4. The artificial lens positioner is made of silicon hydrogel, does not damage the eyes of a patient, and can also play a role in protecting the cornea in the operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of an intraocular lens positioner for use with a two haptic intraocular lens according to the present invention.

FIG. 2 is a schematic diagram of an IOL positioner for a three haptic IOL of the present invention.

FIG. 3 is an intraocular lens positioner of the present invention with limbal assist location lines and optic assist location lines;

figure 4 is a side view of an intraocular lens positioner of the present invention.

Description of reference numerals:

1: a corneal section; 2: a puncture hole positioning loop; 3: puncturing a hole; 4: a limbal location line; 5: an intraocular lens optical part positioning line; 6: a vent hole; 7: a limbal auxiliary positioning line; 8: the optic assists in locating the thread.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms also include the plural forms unless the context clearly dictates otherwise, and further, it is understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 and 4, an intraocular lens positioner for intraocular lens suture fixation surgery comprises a corneal portion 1, the corneal portion is a transparent arc-shaped body, a vent hole 6 is formed in the center of the corneal portion, a puncture hole positioning loop 2 is arranged on the edge of the corneal portion 1, an intraocular lens optical portion positioning wire 5 is arranged at a position, close to the center, of the corneal portion 1, and a limbus positioning wire 4 is arranged at a position, close to the edge, of the corneal portion 1.

The cornea part 1 is made of silicon hydrogel with the water content of 36%, the diameter of the cornea part is 14mm, the thickness of the cornea part is 0.09mm, the radius of a base arc of the cornea part is 8.6mm, the diameter of the vent hole 6 is 2mm, the diameter of the positioning line 5 of the optical part of the artificial lens is 6mm, and the diameter of the corneal limbus positioning line 4 is 12 mm.

Because the sizes of the eyeballs of the patients are different, the sizes of the corneas are also different, in order to adapt to the different sizes of the corneas of the patients and the corresponding intraocular lenses of various models, please refer to fig. 3, 2 optical part auxiliary positioning lines 8 are arranged on the inner side of the positioning line 5 of the optical part of the intraocular lens, and 1 optical part auxiliary positioning line 8 is arranged on the outer side; and 1 limbus auxiliary positioning line 7 is arranged on the inner side of the limbus positioning line 4, and 2 limbus auxiliary positioning lines 7 are arranged on the outer side.

4 puncture holes 3 which are uniformly distributed are arranged on each puncture hole positioning loop 2 so as to adapt to intraocular lenses of different models, and the interval between the puncture holes 3 is 1 mm.

The number of the puncture hole positioning loops 2 is 2, and the puncture hole positioning loops are suitable for being used when two loop type artificial lenses are implanted.

During operation, the corneal edge positioning line 4 and the corneal edge of the intraocular lens positioner are repeatedly positioned, at the moment, a needle is inserted from the puncture hole 3 on the puncture hole positioning loop 2, and then the fixing suture of the intraocular lens is adjusted to enable the intraocular lens to be superposed with the intraocular lens optical part positioning line 5, so that the intraocular lens can be determined to be in the central position and can be fixed by the suture.

Example 2

Referring to fig. 2, an intraocular lens positioner for intraocular lens suture fixation surgery comprises a corneal portion 1, the corneal portion is a transparent arc-shaped body, a vent hole 6 is formed in the center of the corneal portion, a puncture hole positioning loop 2 is arranged on the edge of the corneal portion 1, an intraocular lens optical portion positioning wire 5 is arranged at a position, close to the center, of the corneal portion 1, and a limbus positioning wire 4 is arranged at a position, close to the edge, of the corneal portion 1.

The cornea part 1 is made of silicon hydrogel with the water content of 36%, the diameter of the cornea part is 14mm, the thickness of the cornea part is 0.09mm, the radius of a base arc of the cornea part is 8.6mm, the diameter of the vent hole 6 is 2mm, the diameter of the positioning line 5 of the optical part of the artificial lens is 6mm, and the diameter of the corneal limbus positioning line 4 is 12 mm.

Because the sizes of the eyeballs of the patients are different, the sizes of the corneas are different, so that the artificial lens is suitable for the different sizes of the corneas of the patients and the corresponding artificial lenses of various models.

4 puncture holes 3 which are uniformly distributed are arranged on each puncture hole positioning loop 2 so as to adapt to intraocular lenses of different models, and the interval between the puncture holes 3 is 1 mm.

The number of the puncture hole positioning loops 2 is 3, and the puncture hole positioning loops are suitable for being used when a three-loop intraocular lens is implanted.

During operation, the corneal edge positioning line 4 and the corneal edge of the intraocular lens positioner are repeatedly positioned, at the moment, a needle is inserted from the puncture hole 3 on the puncture hole positioning loop 2, and then the fixing suture of the intraocular lens is adjusted to enable the intraocular lens to be superposed with the intraocular lens optical part positioning line 5, so that the intraocular lens can be determined to be in the central position and can be fixed by the suture.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.