초록 ▼

A microkeratome is provided for use in lamellar surgery on the cornea of the eye. The microkeratome includes a base carrying a camshaft for rotation by a cable connected to the shaft. The base also supports a moving blade assembly slidably mounted on an applanator assembly, with the blade being thin

A microkeratome is provided for use in lamellar surgery on the cornea of the eye. The microkeratome includes a base carrying a camshaft for rotation by a cable connected to the shaft. The base also supports a moving blade assembly slidably mounted on an applanator assembly, with the blade being thin and under tension. The moving blade assembly moves above and sidewardly relative to a suction ring. The moving blade assembly is sized to oscillate side-to-side approximately 1 mm. The moving blade assembly is driven by a connecting cable, wherein longitudinal movement of the cable produces responsive longitudinal movement of the frame and blade to cut a flap or disc of a desired configuration.

대표청구항 ▼

[ What is claimed is:] [1.] A microkeratome device for use with an eye, said device comprising;a base assembly including a suction ring for attachment to said eye;an applanator assembly for contacting said eye;a knife assembly including a knife having a cutting edge. said eye configured for movement

[ What is claimed is:] [1.] A microkeratome device for use with an eye, said device comprising;a base assembly including a suction ring for attachment to said eye;an applanator assembly for contacting said eye;a knife assembly including a knife having a cutting edge. said eye configured for movement along its cutting edge axis and transverse to its cutting edge axis; anda drive assembly for driving said knife assembly such that said knife oscillates along its cutting edge axis, said drive assembly including an elongate sheathed cable, said sheathed cable operably attached to said knife and configured to allow movement of said knife both along said cutting edge axis and also transverse to said cutting edge axis by use of a single core element within said sheath, which can be both rotated within said sheath to cause said knife to oscillate and cut said eye and also moved longitudinally along and within the length of said sheath to cause said knife to move transverse to its cutting edge axis.