On-line measurement and monitoring of pulsating saline and water jet\ndisintegration of bone cement with frequency 20 kHz

0507844 - ÚGN 2020 RIV GB eng J - Journal Article
Hloch, Sergej - Nag, A. - Pude, F. - Foldyna, Josef - Zeleňák, Michal
On-line measurement and monitoring of pulsating saline and water jet
disintegration of bone cement with frequency 20 kHz.
Measurement. Roč. 147, December 2019 (2019), s. 106828-106837. ISSN 0263-2241. E-ISSN 1873-412X
R&D Projects: GA MŠMT(CZ) LO1406
Institutional support: RVO:68145535
Keywords : revision arthroplasty * pulsating liquid jet * bone-cement removal * on-line monitoring
OECD category: Mechanical engineering
Impact factor: 3.364, year: 2019
Method of publishing: Limited access
https://doi.org/10.1016/j.measurement.2019.07.056

This paper deals with performance analysis of disintegration of polymethylmethacrylate using pulsating
liquids jet with different density with frequency 20 kHz using condition monitoring. The influence of the
liquid on the cutting depth was studied by using contactless measurement device MicroProf, FRT. The
cutting depths were compared to studies that used a continuous water jet to assess the volume flow
reduction. On-line condition measurement was used for controlling the disintegration process without
compromising the structural integrity of neighbouring materials. With a flow rate of 0.54 l/min, a maximum
disintegration depth of 1.3 mm and material removal of 0.4 mm3 was obtained using physiological
saline and 1.1 mmand 0.2 mm3 for water. Continuous jets required approximately 1.0 l/min to reach similar
cutting depths. Hence, a pulsating liquid jet enhances the cutting capacity with reduced flow rate.
Signal strength for individual pressures 7–10 MPa is not significant, but signal increases during significant
bone cement removal. The results open new avenues for research a minimally invasive and nonthermal
technique for on-line controlled processes for medical purposes.
Permanent Link: http://hdl.handle.net/11104/0298807