Method for making artificial crystalline lens holder
专利摘要:
The invention contemplates improved structure for use in making lens implants in ophthalmological surgery, the lens being a replacement for a cataract-clouded natural lens, and the replacement being installed in the pupil at the iris as the operative step following removal of the cataracted lens. The invention features adapter-element structure assembled or adapted for assembly to an intra-ocular lens element and having plural radially outward iris-stabilizable feet. The adapter-element structure is severably united to further material which aids in handling and storage, in readiness for later surgical use. 公开号:SU1039451A3 申请号:SU792746569 申请日:1979-01-30 公开日:1983-08-30 发明作者:Поулер Стенли 申请人:Стенли Поулер (США); IPC主号:
专利说明:
2. The POP.1 method, characterized in that the photosensitive layer is applied on both sides of a material that is intact with respect to the human body and is etchable, and the prepared reference holder is exposed on a reduced scale, exhibits exposed coatings and treats the developed sides of the sheet chemical solution, while on both sides of the sheet the exposures of the main type of holder in terms of .. are arranged consistently and the exposure is carried out simultaneously 3. Method POP.1, characterized in that a billet is prepared on an enlarged scale for a holder with lens-retaining means going radially inward of the blank, on one side of a thin, intact material to the human body material, apply a mask of resistance to disengagement material that is reduced to the size of the finished holder of the reference blank, etched after photographic exposure and. masks are treated (the surface of the sheet thus eroded, 4. Method pop. 1 and 3, characterized in that the mask is worn simultaneously on both sides of the sheet, the latter being arranged in a coordinated manner. 5. A method according to claims 1 and 2, which means that the material of the sheet is a non-sheet film; 6. The method according to Claims 1 and 2 is different, and that with the fact that the Leaf material is a polyamide film. 7. Method according to Claims 1, 3 and 4, which is based on the fact that the mask material is aluminum sheet. The invention relates to methods for making holders of artificial lenses and can be used to implant the latter into the anterior or posterior chamber of the eye. According to the method of manufacturing the holder of the artificial lens, a reference standard is prepared on an enlarged scale, the latter being a ring protruding radially outwardly with paws arranged with an angular displacement along the periphery of the ring, the protrusions directed inwardly serve to engage the periphery of the holder. lens, a thin sheet of an intact body relative to the human body and an etchable material on one side is covered with a photosensitive layer n, which is exposed to a reduced scale, this Lon holder in plan exhibit exposed coating and obrabaty vayut developability side conductive sheet grass chemical solution. In addition, the photosensitive layer is applied on both sides of an intact body and etched material, the prepared reference holder in the plan is exhibited on a reduced scale, the exposed coatings are exposed and the exposed sides of the sheet are treated with a pickling chemical solution, while Both sides of the sheet of the main view of the holder are arranged in a plan, and the exposure is carried out simultaneously. At the same time, a blank for a holder with lens holding means going radially inside the filler, on one side of a thin sheet of a material that is intact with respect to the human body, is applied on an enlarged scale to apply a mask of resistant to corrosive material, which is reduced to sizes of the finished holder, the reference blank, etched after photographic exposure, and the surface of the sheet thus masked is eroded In this case, the mask is applied simultaneously on both sides of the sheet, the latter being arranged in a coordinated manner. In addition, the sheet material is a nylon film. In this case, the sheet material may be a polyamide film. In addition, the mask material is aluminum sheet. Fig. 1 shows a prefabricated structure consisting of a holder and a lens; figure 2 - holder of an artificial lens, in plan; in fig. 3-6 different designs of the holder. The holder is a ring 1 with tabs 2 projecting radially outwardly, located with an angular displacement around the perimeter of ring 1, and having inwardly protrusions 3 serving to engage with the periphery of the lens 4 being installed in the holder. Example 1. Prepare on a strongly, enlarged scale the picture of the holder in the plan, then this figure is photographically reduced, obtaining the standard of the holder in the plan. A photosensitive material is applied to a thin sheet of an intact body relative to the human body and etched by a material (for example, stainless steel, platinum, iridium, etc.). The photographic image obtained in a graphic way, the negative reference standard of the holder, is superimposed on the photosensitive layer, exposed and displayed. Using a photographic method, those areas exposed to light are removed from the exposed surface, and the resulting plate is placed in a solution of an etching substance (ferric chloride) to etch the unwanted material and to obtain a caMib pattern of the blank. Carried out The etching process has the advantage that it gives round edges free of burrs and allows the use of light and thick materials. P erp 2. A nylon or polyamide film with a thickness in the range of 0.05-0.127 mm has a moisture content and mechanical strength and spectrophotometer to determine the accuracy of the composition. It is washed with acetone and dried on air, washed with distilled water and BHQBb dried in air. The film is checked for cleanliness and no defects on the surface. The surface of the film is prepared for vacuum coating of a chrome film as a lightfasting coating. The emulsion coating is coated on both sides of the film and air-dried. Prepare an enlarged scale of the holder in the plan, and then photographically reduce it, obtaining the standard of the holder in the plan, and the technological process and the preparation of the standard are built in such a way that the last stage is the production stage; on glass plate. The nylon or polyamide film is placed in a vacuum frame to impart a plane and keep it in tight contact with the glass plate, and the holder’s standard negative is exposed on both sides of the film, and the negatives are arranged consistently, and both sides of the film are exposed. The film exhibits an exposed film, resulting in non-exposed areas, which are photographically masked by a negative and therefore not exposed to light, and the areas that are emitted are washed off by the developer. The developed film is exposed to accelerator, and then etched with hydrazine hydride, the photoresistance material is removed, using fluorocarbon as the purifier. The film is thus obtained immersed i. 30% hydrazine chloride solution for rounding KpOMqK blanks. The film is degassed by raising its temperature to 149 ° C for a nylon film and to 2 ° C dl. high-temperature polyamide film. After receiving the blank for the holder in plan, the latter is subjected to structural design, i.e. bend the fasteners in the desired directions. PRI me R 3. Prepare two matched masks, for example, aluminum, using the photo etching method described in Example 2 for this. Select a film of nylon or polyamide 0.05-0.127 mm thick, and then subject it to testing, washing and drying as in example 2. An adhesive is applied to the metal plates and bonded to the front and back sides of the plastics-. film so that they are exactly opposite to each other, and get a layered structure, which is then exposed to a gas-discharge or micro-ion plasma in the presence of an appropriate reactive gas for, for example, 1 hour to obtain the desired configuration by eroding unmasked portions of plastic material (treatment with erosive medium). The adhesive is dissolved to remove aluminum masks for cleaning and reuse. Burrs are obtained from the thus obtained precursors and the holder is structurally designed as in Example 2. The invention allows to obtain preforms for artificial crystalline lenses with subsequent constructive design of the most different configuration, including oval, which can be used for insertion (; talika in the eye past the pupil. In addition, this guarantees absolute
权利要求:
Claims (7) [1] TO THE PATENT (62) 2485749 / 29-13 (21) 2746569 / 28-13 (22) 01/30/79 (23) 05/27/77 (31) 780682 (32) 03/23/77 (33) USA (46) 08/30/83. Bull . Number 32 (75) Stanley Powler (USA) (53) 615.475 (088.8) (54) (57) 1. METHOD MANUFACTURING RESPONSE OF ARTIFICIAL CRYSTAL providing) that they prepare on an enlarged scale the standard of the holder in the plan, the latter ·. it is a ring with tabs protruding radially outward, located with an angular displacement along the perimeter of the ring, and has inwardly directed protrusions for engaging with the periphery of the lens mounted in the holder, a thin sheet of material that is intact with respect to the human body and etched on one side is coated with photosensitive the layer on which the standard of holder c is exposed on a reduced scale. plan, exhibit an exposed coating and process the developed side of the sheet with an etching chemical. solution. [2] 2. The method according to claim 1, characterized in that the photosensitive layer is applied on both sides of the material that is intact relative to the human body and etched, and the prepared holder standard in plan is exposed on a reduced scale, the exposed coatings are developed and the developed sides of the sheet are treated with etching chemical solution, at the same time, on both sides of the exposure sheet of the main view of the holder in plan, they are arranged in a coordinated manner and exposure is carried out simultaneously. , [3] 3. The method according to claim 1, characterized in that a blank is prepared on an enlarged scale for 4 holders with lens-holding means extending radially into the blank, a mask is applied to one side of a thin sheet of material intact with respect to the human body that is resistant to separation material, which is a standard workpiece reduced to the dimensions of the finished holder, subject to etching after photographic exposure, and masks are treated in such a way on top leaf erosion [4] 4. The way popp. 1 and 3, characterized in that the mask is worn simultaneously on both sides of the sheet, the latter being arranged in concert. [5] 5. The method according to claims 1 and 2, with the fact that the sheet material is a nylon film 1 ! [6] 6. The method according to claims 1 and 2, with respect to the principle that the sheet material is a polyamide film .. [7] 7. The method according to claims 1, 3 and 4, so that the mask material is an aluminum sheet. x
类似技术:
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同族专利:
公开号 | 公开日 US4149279A|1979-04-17|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US2834023A|1957-02-06|1958-05-13|Titmus Optical Company Inc|Anterior chamber lenses for refractive correction of aphakia, high ametropia, and anisometropia| US3028949A|1957-10-28|1962-04-10|John J Sohosky|Coin display device| US3925825A|1975-01-24|1975-12-16|American Optical Corp|Supporting system for artificial intraocular lens| US3975779A|1975-04-09|1976-08-24|American Optical Corporation|Artificial intraocular lens and supporting system therefor|US4328595A|1979-08-30|1982-05-11|Sheets John H|Intraocular lens| US4257521A|1979-11-16|1981-03-24|Stanley Poler|Packaging means for an intraocular lens| US4377873A|1980-10-30|1983-03-29|Reichert Jr Henry L|Intraocular lens| US4402579A|1981-07-29|1983-09-06|Lynell Medical Technology Inc.|Contact-lens construction| US4466858A|1981-07-29|1984-08-21|Lynell Medical Technology Inc.|Intraocular and extraocular lens construction and method of making the same| GB2105866B|1981-07-29|1985-05-09|Lynell Med Tech Inc|Intraocular and extraocular lens construction and making by selective erosion| US4450593A|1981-11-09|1984-05-29|Lynell Medical Technology Inc.|Intraocular and contact lens construction| US4969897A|1984-09-12|1990-11-13|Kalb Irvin M|Intraocular lens with retractable leg| US4655775A|1984-10-26|1987-04-07|American Hospital Supply Corporation|Intraocular lens with ridges| US4629461A|1984-11-05|1986-12-16|Henry Clayman|Posterior chamber intra-ocular lens| US4684014A|1985-12-09|1987-08-04|American Hospital Supply Corp.|IOL loop retention package and method| US4888014A|1988-09-13|1989-12-19|Allergan, Inc.|Endocapsular intraocular lens| US4842602A|1988-09-13|1989-06-27|Allergan, Inc.|Endocapsular intraocular lens| US5585049A|1994-09-02|1996-12-17|Allergan|Method for forming fixation members after optic attachment| FR2735680B1|1995-06-22|1998-01-02|W K Et Associes|INTRAOCULAR IMPLANT DEVICE FOR CORRECTING OCULAR ANISOTROPY| US5769889A|1996-09-05|1998-06-23|Kelman; Charles D.|High myopia anterior chamber lens with anti-glare mask| US6395028B1|2001-07-18|2002-05-28|Alcon Universal Ltd.|Anterior chamber phakic lens| US20030199978A1|2002-04-17|2003-10-23|Lindsey Raymie H.|Stable anterior chamber phakic lens| US9364318B2|2012-05-10|2016-06-14|Z Lens, Llc|Accommodative-disaccommodative intraocular lens| EP3503843A1|2016-08-24|2019-07-03|Z Lens, LLC|Dual mode accommodative-disacommodative intraocular lens|
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申请号 | 申请日 | 专利标题 US05/780,682|US4080709A|1976-05-28|1977-03-23|Method of making an intra-ocular lens| 相关专利
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