Method for making improved UV-absorbing ophthalmic lenses

    公开(公告)号:US10338408B2

    公开(公告)日:2019-07-02

    申请号:US14106888

    申请日:2013-12-16

    Applicant: Novartis AG

    Abstract: Described herein is a cost-effective and time-efficient method for making UV-absorbing contact lenses. In contrast to the conventional method for making UV-absorbing contact lenses which involves copolymerizing a lens forming composition including a UV-absorbing vinylic monomer, a method of the invention involves dipping a contact lens in a solution of UV-absorbing polymer comprising carboxyl-containing monomeric units, UV-absorbing monomeric units and covalently bound radical-initiating moieties to form a UV-absorbing coating on the contact lens.

    METHOD FOR MAKING SILICONE HYDROGEL CONTACT LENSES
    4.
    发明申请
    METHOD FOR MAKING SILICONE HYDROGEL CONTACT LENSES 审中-公开
    制造硅胶水凝胶接触透镜的方法

    公开(公告)号:US20150251364A1

    公开(公告)日:2015-09-10

    申请号:US14638105

    申请日:2015-03-04

    Applicant: Novartis AG

    Abstract: The invention provides a method for washing, with a water-based system, reusable molds for making silicone hydrogel contact lenses. The water-based washing system comprises a solvo-surfactant which is an alkyl (propylene glycol)n ether wherein alkyl is a linear alkyl group having 2 to 5 carbon atoms and n is the integer 1, 2 or 3. The water-based system of the invention can effectively wash away silicone-containing components and other components of a lens formulation left behind on the molding surfaces of a reusable mold, after removing a silicone hydrogel contact lens cast molded in the reusable mold.

    Abstract translation: 本发明提供了一种用水洗系统清洗可重复使用的模具以制造硅酮水凝胶隐形眼镜的方法。 水洗系统包括溶剂 - 表面活性剂,其为烷基(丙二醇)n醚,其中烷基是具有2至5个碳原子的直链烷基,n是整数1,2或3.水基体系 本发明可以在去除在可重复使用的模具中铸造的硅酮水凝胶隐形眼镜之后,有效地洗掉残留在可重复使用的模具的模制表面上的透镜制剂的含硅酮组分和其它组分。

    METHOD OF SEPARATING EXCESS LENS FORMING MATERIAL FROM A MOLDED OPHTHALMIC LENS, IN PARTICULAR A CONTACT LENS
    5.
    发明申请
    METHOD OF SEPARATING EXCESS LENS FORMING MATERIAL FROM A MOLDED OPHTHALMIC LENS, IN PARTICULAR A CONTACT LENS 有权
    从模制的眼镜镜片,特别是接触镜片中分离出来的镜片表面材料的方法

    公开(公告)号:US20140199425A1

    公开(公告)日:2014-07-17

    申请号:US14216946

    申请日:2014-03-17

    Applicant: Novartis AG

    Abstract: There is described a method of separating excess lens forming material from a molded ophthalmic lens, in particular a contact lens. After polymerization and/or cross-linking of a lens forming material (P) within a mold cavity (4) of a mold (1) comprising female and male mold halves (2, 3) to form an ophthalmic lens non-polymerized and/or non-cross-linked lens forming material is flushed away from the mold halves (2, 3) with a jet of a fluid flushing medium, such as, e.g., water or a solvent or an inert gas. Subsequently the molded lens is dried. In accordance with the invention the flushing is accomplished with the mold halves (2, 3) still in the closed position. There is also described an apparatus for carrying out the method.

    Abstract translation: 描述了从模制的眼科镜片,特别是隐形眼镜分离多余的透镜形成材料的方法。 在透镜形成材料(P)在包含阴模和阴半模(2,3)的模具(1)的模腔(4)内聚合和/或交联以形成未聚合的眼科镜片和/ 或非交联透镜形成材料用流体冲洗介质(例如水或溶剂或惰性气体)的射流冲洗离开半模(2,3)。 随后将模制的透镜干燥。 根据本发明,冲洗是通过半模(2,3)仍处于关闭位置来完成的。 还描述了一种用于执行该方法的装置。

    PROCESS FOR MANUFACTURING AN OPHTHALMIC LENS
    6.
    发明申请
    PROCESS FOR MANUFACTURING AN OPHTHALMIC LENS 有权
    制造眼镜镜片的工艺

    公开(公告)号:US20140072665A1

    公开(公告)日:2014-03-13

    申请号:US14074087

    申请日:2013-11-07

    Applicant: Novartis AG

    Abstract: There is described a process for manufacturing an ophthalmic lens and an apparatus for forming an ophthalmic lens, in particular a silicone hydrogel contact lens, wherein in a mold assembly a first and a second mold half (101, 102) are first arranged in an intermediate closed position in which the mold surfaces of the two mold halves are spaced apart from each other at a distance increase (d1) of preferably 1 to 100 μm relative to a final distance (d0) in a final closed position, and wherein, during curing of the lens forming material (202), the mold surfaces (105, 106) of the mold halves (101, 102) are actively or passively moved or moving from the intermediate closed position to the final closed position, where the distance increase (d1) is 0.

    Abstract translation: 描述了用于制造眼科镜片的方法和用于形成眼用透镜,特别是硅酮水凝胶隐形眼镜的装置,其中在模具组件中,第一和第二半模(101,102)首先被布置在中间体 关闭位置,其中两个半模的模具表面在最终关闭位置中相对于最终距离(d0)以优选1至100μm的距离增加(d1)彼此间隔开,并且其中在固化期间 透镜形成材料(202)的两个半模(101,102)的模具表面(105,106)被主动地或被动地从中间关闭位置移动或移动到最终关闭位置,其中距离增加(d1 )为0。

    Modular production line for the production of ophthalmic lenses

    公开(公告)号:US10751962B2

    公开(公告)日:2020-08-25

    申请号:US16109136

    申请日:2018-08-22

    Applicant: Novartis AG

    Abstract: A modular production line for the production of contact lenses comprises at least three separate modules: a manufacturing module (MM), an inspection module (IM), and a packaging module (PP). The modular production line further comprises fixedly arranged transfer interfaces between the individual modules (MM, IM, PP) for transferring the lenses from a preceding module to a subsequent module. The manufacturing module (MM) comprises a plurality of manufacturing stations (300, 301, 302, 310, 320, 321, 322, 330, 331, 340, 341, 342, 350, 351, 352) which are grouped to form a plurality of individual manufacturing units (30; 31; 32; 33; 34; 35) arranged in a closed loop. Reusable male and female molds (212, 112) are transported through the manufacturing stations of the manufacturing units, and each manufacturing unit (30; 31; 32; 33; 34; 35) comprises a plurality of the manufacturing stations (300, 301, 302, 310, 320, 321, 322, 330, 331, 340, 341, 342, 350, 351, 352). A plurality of transfer robots (36) is provided, each transfer robot (36) of the plurality of transfer robots (36) being arranged at a location between two manufacturing units (30; 31; 32; 33; 34; 35) to transfer the reusable molds from one manufacturing unit to the other manufacturing unit.

    METHOD FOR AVOIDING ENTRAPMENT OF AIR BUBBLES IN A LENS FORMING MATERIAL AND APPARATUS FOR CARRYING OUT THE METHOD
    8.
    发明申请
    METHOD FOR AVOIDING ENTRAPMENT OF AIR BUBBLES IN A LENS FORMING MATERIAL AND APPARATUS FOR CARRYING OUT THE METHOD 有权
    用于避免在镜片表面形成空气泡沫的方法和装置的方法

    公开(公告)号:US20150174839A1

    公开(公告)日:2015-06-25

    申请号:US14573472

    申请日:2014-12-17

    Applicant: Novartis AG

    Abstract: A method for avoiding the entrapment of air bubbles (5) in a lens forming material, in particular in a low viscosity lens forming material, in an ophthalmic lens manufacturing process using mold halves (2; 3) each having a lens forming surface (21; 31) comprises electrostatically charging a predetermined portion of the lens forming surface (21; 31) of the mold half (2; 3) prior to the predetermined portion of the lens forming surface (21; 31) coming into contact with the lens forming material (4).

    Abstract translation: 一种在使用具有透镜形成表面(21)的半模(2; 3)的眼镜透镜制造工艺中避免在透镜形成材料(特别是低粘度透镜形成材料)中截留气泡(5)的方法 ; 31)包括在所述透镜形成表面(21; 31)的所述预定部分与所述透镜成形(21; 31)接触之前对所述半模(2; 3)的所述透镜形成表面(21; 31)的预定部分静电充电 材料(4)。

    Method for making UV-absorbing ophthalmic lenses
    9.
    发明授权
    Method for making UV-absorbing ophthalmic lenses 有权
    制造紫外线吸收眼科镜片的方法

    公开(公告)号:US09005700B2

    公开(公告)日:2015-04-14

    申请号:US13648522

    申请日:2012-10-10

    Applicant: Novartis AG

    Abstract: Described herein is a cost-effective and time-efficient method for making UV-absorbing contact lenses. In contrast to the conventional method for making UV-absorbing contact lenses which involves copolymerizing a lens forming composition including a UV-absorbing vinylic monomer, a method of the invention involves dipping a contact lens in a solution of UV-absorbing polymer comprising carboxyl-containing monomeric units and UV-absorbing monomeric units to form a UV-absorbing coating on the contact lens.

    Abstract translation: 本文描述了制造紫外线吸收隐形眼镜的成本效益和时间有效的方法。 与用于制备包含紫外线吸收性乙烯基单体的透镜形成组合物共聚的紫外线吸收隐形眼镜的常规方法相反,本发明的方法包括将隐形眼镜浸入含有羧基的紫外线吸收聚合物的溶液中 单体单元和紫外线吸收单体单元,以在隐形眼镜上形成紫外线吸收涂层。

    MANUFACTURING MODULE FOR THE MANUFACTURE OF OPHTHALMIC LENSES

    公开(公告)号:US20190064396A1

    公开(公告)日:2019-02-28

    申请号:US16109080

    申请日:2018-08-22

    Applicant: Novartis AG

    Abstract: A manufacturing module (MM) for contact lenses comprises a plurality of manufacturing stations (300, 301, 302, 310, 320, 321, 322, 330, 331, 340, 341, 342, 350, 351, 352) arranged in a closed loop and a plurality of lens mold carriers (1, 2) which are transported through the manufacturing stations. Each lens mold carrier (1, 2) comprises a frame (10, 20) having a predetermined number of mounting sites (100, 200) arranged along the frame. Each lens mold carrier (1, 2) further comprises a predetermined number of molds (112, 212) removably mounted to the frame (10, 20) at the mounting sites (100, 200), the molds being reusable male or female molds (212, 112). Two lens mold carriers (1, 2) are assigned to each other to form a pair, so that upon mating the pair of lens mold carriers (1, 2) the male and female molds (212, 112) are mated to form mold cavities defining the shape of the lenses. The manufacturing stations comprise a mold changing station (300, 301, 302) configured to be capable of removing a mold from its mounting site (100, 200) and mounting a different mold at the said mounting site (100, 200), or configured to change the rotational position of a mold (112, 212) mounted to the frame (10, 20), or both.

Patent Agency Ranking