Pull-out tests on bone anchors of a head-mounted parallel kinematic robot for skull surgery
نویسندگان
چکیده
Pull out tests for bone anchors used in surgical robotics were performed to prove the strength of the bone anchor -bone combination. Forces and displacement were measured to evaluate the suitability of the bone anchors as a connection between a surgical robot and bone. A universal experimental setup was designed to conduct the pull out tests. As specimens, human cranial cadaver bone, porcine cadaver hip bone and solid rigid polyurethane foams were chosen. The bone anchors were manually screwed into the specimens and then pulled out using the experimental setup. Mechanical similarities between natural bone and solid rigid polyurethane foams were found. The results suggest that the bone anchors are suitable for the attachment of surgical robotics.
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