Bending apparatus for material testing and Micro-CT imaging
AssigneeOhio State Innovation Foundation
InventorsKyle Anthony Bodnyk, Richard T. Hart, Alan S. Litsky
Life of this patent
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Abstract
A bending apparatus for a sample is disclosed. The bending apparatus includes a translation mechanism that translates a vertical displacement/force into a horizontal displacement/force for bending. Components of the bending apparatus are fabricated from a strong, radiolucent material. In these ways, the bending apparatus is compatible with micro-CT imaging, and as such, may be used to bend a sample during imaging. In a particular application, the bending apparatus may be used to measure biomechanical properties of a bone, such as bone strength, bone material properties, fracture toughness, and fracture propagation.
Claims23
A method for obtaining bone-fracture information, the method comprising:
- positioning a sample in a bending apparatus, said bending apparatus comprising:
- two bending pins that are parallel, spaced a distance apart, and pointed in a first direction,
- a loading pin interdigitated between the two bending pins and pointed in a second direction that is opposite to the first direction, wherein the loading pin is movable in the second direction,
- a platen arranged parallel to the second direction and positioned below the bending pins and the loading pin, wherein the platen is movable in a third direction towards the loading pin and orthogonal to the second direction, and
- a force translation mechanism connected between the movable loading pin and the platen so that a displacement of the platen in the third direction creates a corresponding displacement of the loading pin in the second direction;
- positioning a bone sample in the bending apparatus, wherein the platen of the bending apparatus is displaced to apply a bending force on the bone sample;
- and
- sensing the bending force on the bone sample at the platen.
Dependencies are inferred from the claim text.