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US 7,922,736 B2Granted
Stepped microkeratome blade holder
AssigneeTechnolas Perfect Vision GmbH
InventorsCraig A. Barrile-Josephson, Peter J. Halecki, Michael H. Dobner
Life of this patent
Estimating the term…
Abstract
A blade holder 16 includes a bottom surface 18 for attachment to a blade 30. A top surface 20 interfaces with a drive-pin 32 of a microkeratome 38. A drive slot 22 is formed in the top surface 20 for engagement with the drive-pin 32 for allowing oscillation of the blade holder 16. A plurality of steps 24 are formed in the top surface 20, and rise from the drive slot 22 toward at least one side 26 of the blade holder 16.
Claims7
A blade holder for attachment to a microkeratome blade comprising:
- a bottom surface for attachment to the blade;
- a top surface for interfacing with a drive-pin of a microkeratome;
- a drive slot formed in the top surface for engagement with the drive-pin for allowing oscillation of the blade holder;
- a plurality of steps formed in the top surface and rising from the drive slot toward at least one side of the blade holder;
- and
- wherein a width of each step is less than a diameter of rotation of the drive-pin for ensuring that the drive-pin is directed toward the drive slot.
3 more elements
A microkeratome cutting blade assembly comprising:
- a cutting blade;
- and
- a blade holder attached to the cutting blade, the blade holder including:
- a bottom surface attached to the blade;
- a top surface for interfacing with a drive-pin of a microkeratome;
- a drive slot formed in the top surface for engagement with the drive-pin;
- a plurality of steps forming the top surface and rising from the drive slot toward opposing sides of the blade holder;
- wherein a width of each step ensure that the drive-pin will be engaged in the drive slot within three revolutions of the drive-pin after the drive-pin contacts the top surface;
- and
- wherein three steps are formed from the drive slot towards each opposing side of the blade holder.
7 more elements
A microkeratome system comprising:
- a drive-pin having a diameter of revolution;
- a cutting blade assembly held within the microkeratome including:
- a cutting blade;
- and
- a blade holder attached to the cutting blade, the blade holder including:
- a bottom surface attached to the blade;
- a top surface for interfacing with the drive-pin;
- a drive slot formed in the top surface for engagement with the drive-pin for oscillating the cutting blade assembly;
- and
- a plurality of steps formed in the top surface and rising from the drive slot toward at least one side of the blade holder;
- a motor for rotating the drive-pin, and
- wherein a width of each step is less than a diameter of rotation of the drive-pin for ensuring that the drive-pin is directed toward the drive slot.
9 more elements
Dependencies are inferred from the claim text.