Hoya Corporation

The Furukawa Electric Co., Ltd.

Noriyuki Shoji

Masanobu Inoue

Yuichi Yokoyama

Koichi Maeno

Masashi Nomura

Kikuo Mitomo

Hirofumi Suzuki

Masataka Iegaki

An intraocular lens of the present invention has a substantially circular or elliptical optical lens portion made of a soft material, and an arm-shaped support arm portion attached to outer peripheral edges of this optical lens portion, and out of the peripheral edges of the optical lens portion that are contiguous to both sides in a width direction of a root of the support arm portion, at least one outer peripheral edge has a portion recessed inward from the convex curve. Thus, there is provided a soft intraocular lens that can be inserted into an eye from a further smaller incision, without damaging an optical function as much as possible.

Soft intraocular lens

There is provided a soft intraocular lens, comprising: an optical lens sectionmade of a foldable soft material; and a support arm sectionformed so as to protrude outward from an outer peripheral edge of the optical lens sectionfor holding the optical lens sectionin an eye, wherein a tip end partof the support arm sectionis made of a different kind of material which is harder than a soft material of other portion of the soft intraocular lens, and adhesiveness of the tip end partof the support arm sectionis set to be lower than the adhesiveness of other portion of the soft intraocular lens

Soft intraocular lens and method of manufacturing the same

An intraocular lens insertion device () includes a main body (), an operational portion () provided on an end () of the main body (), a knock mechanism () for moving the operational portion () forward and backward with respect to the main body (), and a cartridge () attached to the other end () of the main body () and serving as an insertion tube. The device is constructed, as a whole, such that the knock mechanism () moves the operational portion () repeatedly forward and backward so that an intraocular lens () placed in the cartridge () can be pushed out stepwise. The knock mechanism () is structured so as to move the operational portion () pushed forward toward a backward direction and automatically return it to an original position prior to the same being pushed forward.

Intraocular lens inserting device

A soft intraocular lens is provided, with IRHD hardness thereof being 40 to 60, wherein distance L is in a range of 3.75 mm-4.50 mm, which is a distance from an optical central axis of the optical part to a reference point of a supporting part side edge of the transition part, and an angle &#x3b8; is in a range of 35&#xb0;-50&#xb0;, which is formed by a surface including the optical central axis and a reference point of the supporting part side edge of the transition part, and a surface including the optical central axis and in contact with a tip of the supporting part, with a width of the transition part being larger than a width of the supporting part, and a width Wm of the transition part in a middle of the optical part side edge and the supporting part side edge of the transition part being 1.5 times to 3 times of a width Ws of the supporting part.

There is provided an intraocular lens insertion device capable of more easily inserting an intraocular lens into an eye. An intraocular lens insertion devicecomprises a main body, an operation portionand a cartridgeattached to the main body. The operation portionhas a plungerintegrally provided thereon and serving as a transmitting member, and a rodprovided on a distal end of the plungerand serving to push out the intraocular lens. The intraocular lens insertion devicefurther comprises a restraint portionand thus allows the rodto first push an intraocular lensby a predetermined distance and then be temporarily stopped before the intraocular lensis released from the cartridgetoward the outside.

Intraocular lens insertion device

An RFID tag which is provided with a coil-shaped antenna such that a conductor is placed on the periphery of a magnetic core, the RFID comprising: the magnetic core, an FPC wound on the periphery of the magnetic core, two or more linear conductor patterns formed in parallel with one another on the FPC, an IC that is connected to the linear conductor patterns and disposed on the FPC, a crossover pattern that electrically connects one end and the other end of outermost linear conductor patterns among the linear conductor patterns formed in parallel with one another, where in the two or more linear conductor patterns, adjacent linear conductor patterns in a joint portion in the wound FPC are electrically connected in respective start edges and end edges.

RFID tag and its manufacturing method

A method for producing 2-hydroxyethyl methacrylate polymers comprising polymerizing 2-hydroxyethyl methacrylate or a monomer mixture thereof containing a halogen compound thorough radical polymerization; method for producing hydrogels comprising subjecting the polymers to a water-imparting treatment; method for producing water-containing soft contact lenses comprising molding the polymers into a shape of contact lens and subjecting them to a water-imparting treatment and method for producing polymers comprising treating at least molding surfaces of molds, which form a cavity of contact lens shape, with a halogen compound and polymerizing 2-hydroxyethyl methacrylate or a monomer mixture thereof in the cavity through radical polymerization are disclosed. According to the present invention, water-containing soft contact lenses with high heat resistance and intermediates therefor are obtained from 2-hydroxyethyl methacrylate of high purity.

Growing community of inventors

Kitamoto, Japan

Noriyuki Shoji