Patent classifications
B29D11/0025
BASKET FOR CARRYING A CONTACT LENS DURING ITS TREATMENT IN A BATH
An embodiment of the invention is a basket for holding contact lenses. The basket comprises a first basket and a second basket mating members, each basket member comprises a basket wall defining a first cavity, a planar flange extending out around the first cavity, a plurality of spaced fingers extending upward circumferentially from the periphery of the cavity, wherein the first basket and second basket mating members having a same structure, wherein the first basket and second basket mating members forming a second cavity when mated for receiving said contact lens, the cavity inhibiting inversion or rolling over of said contact lens when emplaced therein. A tray that comprises a plurality of baskets is another embodiment of the invention. In addition, the invention provides a stack assembly that comprises a plurality of trays each of which comprises a plurality of baskets.
METHOD AND SYSTEM FOR REMOVING A LIQUID FROM A CONTAINER FOR ACCOMMODATING AN OPHTHALMIC LENS
A method of removing a liquid from a container (1) for accommodating an ophthalmic contact lens, in particular a soft contact lens, during transporting the container (1) from a liquid bath (13) to a subsequent processing station (14), the method including the steps of: transporting the container (1) from the liquid bath to the subsequent processing station, generating suction (20), and applying the suction (20) to a bottom (11) of the container (1) during the step of transporting the container (1) from the liquid bath to the subsequent processing station, thereby removing the liquid from the container (1).
METHOD FOR STERILIZING OPHTHALMIC LENS
A method for sterilizing an ophthalmic lens with long-term inhibition against regrowth of micro-organisms includes the step of placing the ophthalmic lens in a sealed container containing a care solution. A photocatalytic agent coated in an inner surface of the container is exposed to ultraviolet light, to cause the photocatalytic agent to undergo a photocatalytic reaction under the ultraviolet light, which causes destruction of micro-organisms on the ophthalmic lens.
MANUFACTURING MODULE FOR THE MANUFACTURE OF OPHTHALMIC LENSES
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.
MODULAR PRODUCTION LINE FOR THE PRODUCTION OF OPHTHALMIC LENSES
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 and system for removing a liquid from a container for accommodating an ophthalmic lens
A method of removing a liquid from a container (1) for accommodating an ophthalmic contact lens, in particular a soft contact lens, during transporting the container (1) from a liquid bath (13) to a subsequent processing station (14), the method including the steps of: transporting the container (1) from the liquid bath to the subsequent processing station, generating suction (20), and applying the suction (20) to a bottom (11) of the container (1) during the step of transporting the container (1) from the liquid bath to the subsequent processing station, thereby removing the liquid from the container (1).
Silicone elastomer-silicone hydrogel hybrid contact lenses
A silicone elastomer-silicone hydrogel hybrid contact lens comprises a silicone elastomer layer adhered to silicone hydrogel layer by a delamination-resistant bond. The silicone hydrogel layer has a percent swell of about 5% up to about 20%. The silicone elastomer layer may have one or more objects embedded within it or adhered to its surface. Such objects may include variable-focus lenses and/or electronic components.
CARRIER FOR CARRYING AN OPHTHALMIC LENS DURING ITS TREATMENT IN A BATH
A carrier for carrying an ophthalmic lens comprises:
a basket (10) comprising a basket wall defining a concave cavity for accommodating an ophthalmic lens (100), the basket further comprising at least three recesses (12) arranged in the basket wall at different locations along the circumference of the basket (10); and
a retainer (20) comprising at least three retainer arms (21) arranged in a star-shaped configuration corresponding to the arrangement of the recesses (12) along the circumference of the basket (10).
In an assembled state each retainer arm (21) of the retainer (20) engages with a corresponding one of the recesses (12) in the basket wall of the basket (10) to retain the ophthalmic lens (100) in the cavity.
Contact Lenses With Incorporated Components
A contact lens comprises a hydrogel lens body and a non-expandable object embedded within the hydrogel lens body. The surface energy of the non-expandable object and the modulus of the hydrogel lens body are selected so as to reduce distortion during hydration of the hydrogel.
MOISTURIZED CONTACT LENS AND METHOD OF MANUFACTURING THE SAME
A moisturized contact lens and a method of manufacturing the same are provided. A lens of at least one quasi-contact lens is placed on a pallet of a modification processing machine for contact lenses. Then an electric arc generating unit is driven by a feed unit of the modification processing machine for contact lenses to remove impurities clogged pores of a lens of the quasi-contact lens and form circular grooves on surface of the lens of the quasi-contact lens. Thereby breathability, oxygen permeability, and hydrophilicity of the contact lens are restored. The circular grooves are for storage of tears so that wettability between eyeballs and the contact lens can be maintained for a long time and tear circulation is improved. Users won't have discomfort and dry eyes caused by insufficient moisture even wearing the contact lens for a long time and eye drops or artificial tears are not used.