CN112847121A - Polishing method of hydrophobic artificial lens - Google Patents

Polishing method of hydrophobic artificial lens Download PDF

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Publication number
CN112847121A
CN112847121A CN202110209628.2A CN202110209628A CN112847121A CN 112847121 A CN112847121 A CN 112847121A CN 202110209628 A CN202110209628 A CN 202110209628A CN 112847121 A CN112847121 A CN 112847121A
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Prior art keywords
polishing
bottle
hydrophobic
balls
artificial lens
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CN202110209628.2A
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CN112847121A8 (en
CN112847121B (en
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汪峰
王明坤
张明瑞
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TIANJIN CENTURY KANGTAI BIO-MEDICAL ENGINEERING CO LTD
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TIANJIN CENTURY KANGTAI BIO-MEDICAL ENGINEERING CO LTD
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/02Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/12Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Prostheses (AREA)

Abstract

The polishing method of the hydrophobic artificial lens comprises the following steps: s1: respectively carrying out alkali treatment and acid treatment on the polishing balls; s2, putting polishing balls with different diameters into polishing bottles; s3, adding pure water, polishing powder and a cleaning agent into the polishing bottle in the step S2, and then placing the polishing bottle on a polishing machine to rotate, wherein the polishing bottle is required to be in a low-temperature environment when rotating on the polishing machine; s4: loading the hydrophobic artificial lens after turning and milling into a polishing bottle; s5, placing the polishing bottle filled with the hydrophobic artificial lens in the S4 on a polishing machine for rotating and polishing, wherein the process is carried out under the low-temperature condition; s6, separating the hydrophobic artificial lens and the polished sphere which are subjected to the low-temperature polishing in the S5. The method polishes the hydrophobic artificial lens in a low-temperature environment, reduces the over-polishing phenomena of polishing powder adhesion, knife line residue, over-polishing, depression on the optical surface and the like in the polishing process, and improves the polishing yield of the hydrophobic artificial lens.

Description

Polishing method of hydrophobic artificial lens
Technical Field
The invention belongs to the technical field of artificial lens processing, and particularly relates to a polishing method of a hydrophobic artificial lens.
Background
Cataract may be recapitulated by surgery in combination with implantation of an intraocular lens after removal of the clouded lens. The number of new cataract blindness is also increasing rapidly with the increase of population and the aging of population. The material composition of the intraocular lens may be Polymethacrylate (PMMA), silicone, hydrogel, hydrophilic or hydrophobic acrylates (HEMA), and the like. The polishing process is vital to obtaining the optical performance of the artificial lens, the existing polishing method is not suitable for polishing the hydrophobic artificial lens, the polished hydrophobic artificial lens in the existing polishing mode generally has the over-polishing phenomena of adhesion of polishing powder, residual knife lines, excessive polishing, depression on the optical surface and the like, the yield of the hydrophobic artificial lens is seriously influenced, and the yield of the conventional hydrophobic artificial lens is less than 60%.
Disclosure of Invention
The invention aims to provide a polishing method of a hydrophobic artificial lens, which aims to solve the technical problems of the prior art that the hydrophobic artificial lens has over-polishing phenomena such as adhesion of polishing powder, knife-line residue, over-polishing, depression on the optical surface and the like.
The technical scheme of the invention is as follows: a method of polishing a hydrophobic intraocular lens comprising the steps of: s1: respectively carrying out alkali treatment and acid treatment on the polishing balls; s2, putting polishing balls with different diameters into polishing bottles; s3, adding pure water, polishing powder and a cleaning agent into the polishing bottle in the step S2, and then placing the polishing bottle on a polishing machine to rotate, wherein the polishing bottle is required to be in a low-temperature environment when rotating on the polishing machine; s4: loading the milled hydrophobic artificial lens into the polishing bottle polished at the low temperature in S3; s5, placing the polishing bottle filled with the hydrophobic artificial lens in the S4 on a polishing machine for rotating and polishing, wherein the process is carried out under the low-temperature condition; s6, separating the hydrophobic artificial lens and the polished sphere which are subjected to the low-temperature polishing in the S5.
Further, the low temperature environment in S3 is 0-4 ℃.
Further, the low temperature environment in S5 is 1-5 ℃.
Further, the specific step of S1 is: adding polishing balls, polishing powder and an alkaline solution with the pH value of 13-14 into a polishing bottle, placing the polishing bottle on a polishing machine, rotating for 24-30 h, and carrying out alkaline treatment; and cleaning the polishing ball subjected to the alkali treatment by using pure water, then putting the polishing ball into a polishing bottle, adding an acidic solution with the pH value of 1-2 into the polishing bottle, placing the polishing bottle on a polishing machine, rotating for 2-3 h, and performing acid treatment.
Further, the specific step of S2 is: and (3) filling the polishing balls processed by the S1 into polishing bottles according to different diameters, wherein the polishing balls comprise small polishing balls with the diameter of more than or equal to 0.4 and less than 0.6 mm, medium polishing balls with the diameter of 0.6-0.8 mm and large polishing balls with the diameter of 1.0-1.2 mm, and the small polishing balls comprise: and (3) medium polishing ball: the ratio of the large polished ball is 1:1:1 or 2:2:1 or 4:3: 1.
Further, the specific step of S3 is: adding pure water, polishing powder and a cleaning agent into the polishing bottle of S2, and placing the polishing bottle on a polishing machine for rotation at the temperature of 0-4 ℃.
Further, the specific step of S4 is: and (3) filling the milled semi-finished hydrophobic artificial lens into a polished bottle treated by S3, wherein the number of the filled hydrophobic artificial lenses is 50-100.
Further, the specific step of S5 is: and (3) placing the polishing bottle in the S4 on a polishing machine in an environment of 1-5 ℃, setting the rotating speed to be 90-100 RPM, and setting the rotating time to be 36-72 h.
Further, the polishing balls after the alkali treatment and the acid treatment of S1 are dried before being filled into polishing bottles.
The invention has the beneficial effects that:
the polishing method has the advantages that the hydrophobic artificial lens is polished in a low-temperature environment, the over-polishing phenomena of polishing powder adhesion, knife line residue, over-polishing, depression on the optical surface and the like in the polishing process of the hydrophobic artificial lens are greatly reduced, and the polishing yield of the hydrophobic artificial lens is greatly improved.
Detailed Description
The present invention is further described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
Example (b):
a method of polishing a hydrophobic intraocular lens comprising the steps of:
s1, adding 400 g of polishing balls, 70 g of sodium hydroxide particles, 4 g of polishing powder and 260 mL of pure water into a polishing bottle with the capacity of 1000 mL in sequence, placing the polishing bottle on a polishing machine, rotating for 24 h for alkali treatment, cleaning the polishing balls subjected to alkali treatment by using the pure water, then placing the polishing bottles, adding 15 mL of sulfuric acid with the pH value of 1 again, placing the polishing bottles on the polishing machine after 200 mL of pure water, and rotating for 1 h for acid treatment. The polishing ball described in particular S1 is classified into three types according to diameter: a small polished ball with the diameter of more than or equal to 0.4 and less than 0.6 mm; a middle polished ball with the diameter of 0.6-0.8 mm and a large polished ball with the diameter of 1.0-1.2 mm.
S2, sequentially filling the polishing balls into polishing bottles according to the proportion of 1:1:1, 2:2:1 or 4:3: 1. Before the polishing balls are filled into the polishing bottle, the polishing balls are required to be placed in a dryer for drying, and after drying is finished, impurity balls with irregular shapes are screened out and then are filled into the polishing bottle.
And S3, adding 350 mL of pure water, 4 g of polishing powder and 6 g of cleaning agent into the polishing bottle assembled in the S2 configuration, placing the polishing bottle on a polishing machine in a 4 ℃ environment, setting the rotating speed of the polishing bottle at 100 RPM, and rotating for 4 h.
S4, filling the milled semi-finished hydrophobic artificial lens into the polished bottle processed in the S3, and filling 65 hydrophobic artificial lenses. Particularly, before the semi-finished hydrophobic artificial lens is put into the semi-finished hydrophobic artificial lens, the semi-finished hydrophobic artificial lens needs to be cleaned, and an optical area is kept clean and free of attachments.
S5, placing the polishing bottle in the S4 on a polishing machine in an environment of 1-5 ℃, setting the rotating speed at 90 RPM or 100 RPM, and rotating for 36 h, 48 h, 60 h or 72 h.
S6: and (4) separating the hydrophobic artificial lens polished in the step (S5) from the polishing ball, cleaning the separated polishing ball by pure water, and then filling the cleaned polishing ball into a polishing bottle.
And carrying out orthogonal tests according to different conditions, counting the number of finished intraocular lenses under different conditions, and calculating the yield under each condition. The judgment standard of the finished product ratio is that the surface of the polished hydrophobic artificial lens has no scratch, foreign matters, bulges, depressions, obvious lines and obvious defects.
Comparative example:
the comparative example is different from the examples in that the temperatures in S2 and S5 are both 25 ℃ at room temperature.
Table 1 is a comparison table of experimental conditions and yield of examples and comparative examples
Figure DEST_PATH_IMAGE001
As can be seen from the above table, the polishing temperature of the hydrophobic intraocular lens in example 58 was 3 ℃, the polishing temperature of comparative example 22 was 25 ℃, the polishing temperatures were consistent with the experimental conditions except for the difference between the polishing temperatures, and the yields were 95.38% and 59.08%, respectively, which were as high as 36.30%. Of course, the rotational speed of the polishing machine, the polishing time, and the ratio of polishing balls having different diameters also affect the yield.
According to the analysis of the polishing conditions and the results of the examples, the optimal polishing conditions of the hydrophobic intraocular lens are that the polishing temperature is 3 ℃, the rotation speed of a polishing machine is 100 PRM, the polishing time is 48 h and the ratio of polishing balls (small, medium and large) is 4:3: 1.
The polishing method of the hydrophobic artificial lens disclosed by the invention is used for polishing the hydrophobic artificial lens in a low-temperature environment, so that the over-polishing phenomena of adhesion of polishing powder, knife line residue, over-polishing, depression on the optical surface and the like in the polishing process of the hydrophobic artificial lens are greatly reduced, and the polishing yield of the hydrophobic artificial lens is greatly improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes 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.

Claims (10)

1. A method of polishing a hydrophobic intraocular lens, comprising: the method comprises the following steps:
s1: respectively carrying out alkali treatment and acid treatment on the polishing balls;
s2, putting polishing balls with different diameters into polishing bottles;
s3, adding pure water, polishing powder and a cleaning agent into the polishing bottle in the step S2, and then placing the polishing bottle on a polishing machine to rotate, wherein the polishing bottle is required to be in a low-temperature environment when rotating on the polishing machine;
s4: loading the milled hydrophobic artificial lens into the polishing bottle polished at the low temperature in S3;
s5, placing the polishing bottle filled with the hydrophobic artificial lens in the S4 on a polishing machine for rotating and polishing, wherein the process is carried out under the low-temperature condition;
s6, separating the hydrophobic artificial lens and the polished sphere which are subjected to the low-temperature polishing in the S5.
2. The polishing method for a hydrophobic intraocular lens according to claim 1, characterized in that: the low temperature environment in S3 is 0-4 ℃.
3. The polishing method for a hydrophobic intraocular lens according to claim 1 or 2, characterized in that: the low temperature environment in S5 is 1-5 ℃.
4. The polishing method for a hydrophobic intraocular lens according to claim 1, characterized in that: the specific steps of S1 are as follows: adding polishing balls, polishing powder and an alkaline solution with the pH value of 13-14 into a polishing bottle, placing the polishing bottle on a polishing machine, rotating for 24-30 h, and carrying out alkaline treatment; and cleaning the polishing ball subjected to the alkali treatment by using pure water, then putting the polishing ball into a polishing bottle, adding an acidic solution with the pH value of 1-2 into the polishing bottle, placing the polishing bottle on a polishing machine, rotating for 2-3 h, and performing acid treatment.
5. The polishing method for a hydrophobic intraocular lens according to claim 1, characterized in that: the specific steps of S2 are: and filling the polishing balls processed by the S1 into polishing bottles according to different diameters, wherein the polishing balls comprise small polishing balls with the diameter of more than or equal to 0.4 and less than 0.6 mm, medium polishing balls with the diameter of 0.6-0.8 mm and large polishing balls with the diameter of 1.0-1.2 mm.
6. The polishing method for a hydrophobic intraocular lens according to claim 5, characterized in that: and (3) small polishing balls: and (3) medium polishing ball: the ratio of the large polished ball is 1:1:1 or 2:2:1 or 4:3: 1.
7. The polishing method for a hydrophobic intraocular lens according to claim 1, characterized in that: the specific steps of S3 are: adding pure water, polishing powder and a cleaning agent into the polishing bottle of S2, and placing the polishing bottle on a polishing machine for rotation at the temperature of 0-4 ℃.
8. The polishing method for a hydrophobic intraocular lens according to claim 1, characterized in that: the specific steps of S4 are: and (3) filling the milled semi-finished hydrophobic artificial lens into a polished bottle treated by S3, wherein the number of the filled hydrophobic artificial lenses is 50-100.
9. The polishing method for a hydrophobic intraocular lens according to claim 1, characterized in that: the specific steps of S5 are: and (3) placing the polishing bottle in the S4 on a polishing machine in an environment of 1-5 ℃, setting the rotating speed to be 90-100 RPM, and setting the rotating time to be 36-72 h.
10. The polishing method for a hydrophobic intraocular lens according to claim 1, characterized in that: the polishing balls after the alkali treatment and the acid treatment of S1 are required to be dried before being filled into polishing bottles.
CN202110209628.2A 2021-02-25 2021-02-25 Polishing method of hydrophobic artificial lens Active CN112847121B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380653A (en) * 1944-03-02 1945-07-31 Crane Packing Co Method of removing fins from molded products
EP0259532A1 (en) * 1986-09-10 1988-03-16 Pharmacia Ab UV absorbing lens material
US5725811A (en) * 1994-06-27 1998-03-10 Chiron Vision Corporation IOL tumbling process
JPH11347914A (en) * 1998-06-09 1999-12-21 Menicon Co Ltd Intraocular implant polishing method
CN1255079A (en) * 1997-05-08 2000-05-31 博士伦外科公司 Intraocular lens tumbling process using coated beads
CN1447733A (en) * 2000-08-21 2003-10-08 博士伦公司 Dry polishing of intraocular lenses
US20040002290A1 (en) * 2002-06-27 2004-01-01 Bausch & Lomb Incorporated Method for target polishing intraocular lenses
CN106956082A (en) * 2016-01-11 2017-07-18 广东东阳光药业有限公司 Artificial lens preparation method
CN206544097U (en) * 2017-02-27 2017-10-10 河南宇宙人工晶状体研制有限公司 Intraocular lens polishes bottle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380653A (en) * 1944-03-02 1945-07-31 Crane Packing Co Method of removing fins from molded products
EP0259532A1 (en) * 1986-09-10 1988-03-16 Pharmacia Ab UV absorbing lens material
US5725811A (en) * 1994-06-27 1998-03-10 Chiron Vision Corporation IOL tumbling process
CN1255079A (en) * 1997-05-08 2000-05-31 博士伦外科公司 Intraocular lens tumbling process using coated beads
JPH11347914A (en) * 1998-06-09 1999-12-21 Menicon Co Ltd Intraocular implant polishing method
CN1447733A (en) * 2000-08-21 2003-10-08 博士伦公司 Dry polishing of intraocular lenses
US20040002290A1 (en) * 2002-06-27 2004-01-01 Bausch & Lomb Incorporated Method for target polishing intraocular lenses
CN106956082A (en) * 2016-01-11 2017-07-18 广东东阳光药业有限公司 Artificial lens preparation method
CN206544097U (en) * 2017-02-27 2017-10-10 河南宇宙人工晶状体研制有限公司 Intraocular lens polishes bottle

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