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Cartilage Knee Probe
Annalisa Casarotto & Shannon Pruitt
Advisor: Dr. W. M. Hammond

The cartilage knee probe is used to find the rigidity of cartilage in a knee during surgery. This measurement allows the surgeon to ascertain concrete data that is repeatable. Our project is to design the electronics of this probe created under the direction of Dr. Hammond. Through a strain gage placed on a unique transducer inside the probe, minute stress creates an electric signal which is measured, amplified and fed to a micro-controller. The microcontroller reads this signal and displays in on LCD's along with the number of the test without interruption. Sixteen readings can be taken by the doctor. Each reading consists of an average of 8 samples. The readings are individually stored in memory for future reference and/or printouts via a PC.
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