Compliant-mount Air Bushing System for Low-friction Motion of an Inclined-plane Impact Testing Apparatus
نویسندگان
چکیده
INTRODUCTION A testing apparatus has been developed to investigate the deformation of tissue during impact and penetration by a medical needle at varying velocities. The apparatus acts as a variable-angle inclined plane, with the needle mounted on a carriage which accelerates towards impact due to gravitational force. As the needle penetrates tissue, the tissue deforms due to forces applied by the needle, which are highly dependent on both the position and velocity of the needle [1]. As a result, it is critical to characterize external forces acting on the carriage in order to isolate and evaluate the tissue reaction forces which will be compared to various theoretical models for needle-tissue interaction force.
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