Thermal Management of Bone Drilling Based on Rotating Heat Pipe

Jiajia Chen, Dongdong Yuan, Huafei Jiang, Liyong Zhang, Yong Yang, Yucan Fu, Ning Qian and Fan Jiang
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Jiajia Chen: College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China
Dongdong Yuan: College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China
Huafei Jiang: College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China
Liyong Zhang: College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China
Yong Yang: College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China
Yucan Fu: College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Ning Qian: College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Fan Jiang: College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Energies, 2021, vol. 15, issue 1, 1-16

Abstract: Bone drilling is a common surgical operation, which often causes an increase in bone temperature. A temperature above 47 °C for 60 s is the critical temperature that can be allowed in bone drilling because of thermal bone osteonecrosis. Therefore, thermal management in bone drilling by a rotating heat pipe was proposed in this study. A new rotating heat pipe drill was designed, and its heat transfer mechanism and thermal management performance was investigated at occasions with different input heat flux and rotational speed. Results show that boiling and convection heat transfer occurred in the evaporator and film condensation appears in the condenser. The thermal resistance decreases with the increase of the rotational speed at the range from 1200 to 2000 rpm and it decreases as the input heat flux rises from 5000 to 10,000 W/m 2 and increases at 20,000 W/m 2 . The temperature on the drill tip was found to be 46.9 °C with an input heat flux of 8000 W/m 2 and a rotational speed of 2000 rpm. The new designed rotating heat pipe drill showed a good prospect for application to bone drilling operations.

Keywords: bone drilling; bone temperature; thermal osteonecrosis; rotating heat pipe; thermal management (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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