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US 2021/0260841 A1Published application
Method for testing additively manufactured orthopaedic prosthetic components
AssigneeDepuy Ireland Unlimited Company
InventorsWeidong Tong, Mahdieh Aghazadeh, Christopher B. Anderson, Christine L. Douglas
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Abstract
A prosthetic orthopaedic component includes a porous three dimensional structure. The porous three dimensional structure includes post-manufacture residual particles that are to be removed. Methods are therefore disclosed for removing the residual particles and analyzing the particles.
Claims20
A method for removing at least one particle from an additively manufactured orthopaedic prosthetic component, the method comprising the steps of:
- submersing at least a portion of the additively manufactured orthopaedic in a liquid;
- sonicating at least a portion of the additively manufactured orthopaedic prosthetic component so as to loosen the at least one particle;
- and
- shaking the additively manufactured orthopaedic prosthetic component to a low frequency vibration that is less than the high level vibration so as to evacuate the loosened at least one particle from the additively manufactured orthopaedic prosthetic component.
1 more element
A method for evaluating an orthopaedic prosthetic component, the method comprising the steps of:
- obtaining a magnified image of at least a portion of a substrate and at least one particle supported by the substrate, wherein the at least one particle has been removed from the an additively manufactured structure of the orthopaedic prosthetic component;
- viewing the magnified image on a display;
- surrounding the at least one particle with at least one boundary line on the image along a respective outer perimeter of the at least one particle, respectively;
- and
- determining at least one of 1) a quantity of groups of the at least one particle, 2) a size of the at least one particle, 3) an aspect ratio of the at least one particle, and 4) a weight of the at least one particle.
2 more elements
Dependencies are inferred from the claim text.