Nidek Co., Ltd.

Takashi Hagiwara

Masanori Amano

Toshifumi Sumiya

Masahiro Sugimura

A corneal surgical apparatus, which can smoothly incise the cornea (particularly the Bowman's membrane at the cutting start) while ensuring the cutting ability of the blade with a simple arrangement. After a suction unit is fixed to a periphery of the cornea of patient's eye, the cornea projecting from an opening portion provided in the suction unit is applanated substantially flatly, and the applanated cornea is incised in a layered form by a blade. The blade is moved such that any point on the blade depicts an arcuate locus of the same shape.

Corneal surgical apparatus

A cornea surgical operation apparatus for incising a cornea of a patient's eye into a layer comprises a fixing device having an opening put into contact with the surface of the cornea and for being fixed to a peripheral part of the cornea with the opening as a center, a press device for nearly flat pressing the cornea protruded from the opening, a blade for cutting out the cornea pressed into a nearly flat shape by the press device, a movement device for moving the blade in such a way that it passes a center of the opening, and a rotation device for rotating the blade moved at least to a Bowman membrane by the movement device with the center of the opening as the center of rotation.

Cornea surgical operation apparatus

An ablation apparatus for ablating only a convex part on a rough surface efficiently in a short time, providing a light delivering optical system for delivering a laser beam being a slender from a laser beam source rectangular shape to an object to be ablated, a beam moving device for moving the laser beam to an intersecting direction relative to the optical axis of the light delivering optical system, a dividing-and-masking device for dividing selectively a longer-side direction of the laser beam of which a cross section is a rectangular shape and masking the same selectively, a data input device for inputting data relating to an ablation area of the object, and a control device for controlling the condition masked by the dividing-and-masking device at respective positions of the laser beam moved by the beam moving device based on the data inputted by using the data input device, wherein convex parts of the object of which a surface being roughness is ablated by the laser beam through the dividing-and-masking device and the beam moving device.

Growing community of inventors

Saitama, Japan

Takashi Hagiwara