The Experts below are selected from a list of 183 Experts worldwide ranked by ideXlab platform
Paolo Dario - One of the best experts on this subject based on the ideXlab platform.
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Miniaturized Cutting Tool With Triaxial Force Sensing Capabilities for Minimally Invasive Surgery
Journal of Medical Devices, 2007Co-Authors: Pietro Valdastri, Paolo Dario, Arianna Menciassi, Keith Houston, Arne Sieber, Masaru Yanagihara, Masakatsu G. FujieAbstract:This paper reports a miniaturized triaxial Force sensorized cutting tool for minimally invasive robotic surgery. This device exploits a silicon-based microelectromechanical system triaxial Force sensor that acts as the core component of the system. The outer diameter of the proposed device is less than 3 mm, thus enabling the insertion through a 9 French catheter guide. Characterization tests are performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced in order to have a triaxial Force output in real time. Normal Force resolution is 8.2 bits over a Force range between 0 N and 30 N, while tangential resolution is 7 bits over a range of 5 N. Force signals with frequencies up to 250 Hz can successfully be detected, enabling haptic feedback and tissue mechanical properties investigation. Preliminary ex vivo muscular tissue cutting experiments are introduced and discussed in order to evaluate the device overall performances.
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Integration of a miniaturised triaxial Force sensor in a minimally invasive surgical tool
IEEE Transactions on Biomedical Engineering, 2006Co-Authors: Pietro Valdastri, Masakatsu Fujie, Kanako Harada, Cesare Stefanini, Lucia Beccai, Arianna Menciassi, Paolo DarioAbstract:This paper reports preliminary results on design and fabrication of a cutting tool with an integrated triaxial Force sensor to be Applied in fetal surgery procedures. The outer diameter of the proposed device is 7.4 mm, but a scaled down design can be easily achieved. Linearity and hysteresis tests have been performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced and discussed. The typical working range for the conceived instrument is around 0.3 N, while 20 N and 1 N are, respectively, maximum normal and tangential Forces for which the device robustness has been assessed.
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Miniaturised Cutting Tool With Triaxial Force Sensing Capabilities for Minimally Invasive Surgery
Volume 2: Automotive Systems Bioengineering and Biomedical Technology Fluids Engineering Maintenance Engineering and Non-Destructive Evaluation and Na, 2006Co-Authors: Pietro Valdastri, Paolo Dario, Arianna Menciassi, Keith Houston, Arne Sieber, Masaru Yanagihara, Masakatsu G. FujieAbstract:This paper reports a miniaturised triaxial Force sensorized cutting tool for minimally invasive robotic surgery. This device exploits a silicon based MEMS triaxial Force sensor that acts as the core component of the system. The outer diameter of the proposed device is less than 3 mm, thus enabling the insertion through a 9 French catheter guide. Characterization tests are performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced in order to have a triaxial Force output in real time. Normal Force resolution is 8.2 bits over a Force range between 0 N and 30 N, while tangential resolution is 8.1 over a range of 6 N. Force signals with frequencies up to 250 Hz can successfully be detected, enabling haptic feedback and tissue mechanical properties investigation. Preliminary ex vivo muscular tissue cutting experiments are introduced and discussed in order to evaluate the device overall performances.Copyright © 2006 by ASME
Pietro Valdastri - One of the best experts on this subject based on the ideXlab platform.
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Miniaturized Cutting Tool With Triaxial Force Sensing Capabilities for Minimally Invasive Surgery
Journal of Medical Devices, 2007Co-Authors: Pietro Valdastri, Paolo Dario, Arianna Menciassi, Keith Houston, Arne Sieber, Masaru Yanagihara, Masakatsu G. FujieAbstract:This paper reports a miniaturized triaxial Force sensorized cutting tool for minimally invasive robotic surgery. This device exploits a silicon-based microelectromechanical system triaxial Force sensor that acts as the core component of the system. The outer diameter of the proposed device is less than 3 mm, thus enabling the insertion through a 9 French catheter guide. Characterization tests are performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced in order to have a triaxial Force output in real time. Normal Force resolution is 8.2 bits over a Force range between 0 N and 30 N, while tangential resolution is 7 bits over a range of 5 N. Force signals with frequencies up to 250 Hz can successfully be detected, enabling haptic feedback and tissue mechanical properties investigation. Preliminary ex vivo muscular tissue cutting experiments are introduced and discussed in order to evaluate the device overall performances.
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Integration of a miniaturised triaxial Force sensor in a minimally invasive surgical tool
IEEE Transactions on Biomedical Engineering, 2006Co-Authors: Pietro Valdastri, Masakatsu Fujie, Kanako Harada, Cesare Stefanini, Lucia Beccai, Arianna Menciassi, Paolo DarioAbstract:This paper reports preliminary results on design and fabrication of a cutting tool with an integrated triaxial Force sensor to be Applied in fetal surgery procedures. The outer diameter of the proposed device is 7.4 mm, but a scaled down design can be easily achieved. Linearity and hysteresis tests have been performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced and discussed. The typical working range for the conceived instrument is around 0.3 N, while 20 N and 1 N are, respectively, maximum normal and tangential Forces for which the device robustness has been assessed.
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Miniaturised Cutting Tool With Triaxial Force Sensing Capabilities for Minimally Invasive Surgery
Volume 2: Automotive Systems Bioengineering and Biomedical Technology Fluids Engineering Maintenance Engineering and Non-Destructive Evaluation and Na, 2006Co-Authors: Pietro Valdastri, Paolo Dario, Arianna Menciassi, Keith Houston, Arne Sieber, Masaru Yanagihara, Masakatsu G. FujieAbstract:This paper reports a miniaturised triaxial Force sensorized cutting tool for minimally invasive robotic surgery. This device exploits a silicon based MEMS triaxial Force sensor that acts as the core component of the system. The outer diameter of the proposed device is less than 3 mm, thus enabling the insertion through a 9 French catheter guide. Characterization tests are performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced in order to have a triaxial Force output in real time. Normal Force resolution is 8.2 bits over a Force range between 0 N and 30 N, while tangential resolution is 8.1 over a range of 6 N. Force signals with frequencies up to 250 Hz can successfully be detected, enabling haptic feedback and tissue mechanical properties investigation. Preliminary ex vivo muscular tissue cutting experiments are introduced and discussed in order to evaluate the device overall performances.Copyright © 2006 by ASME
Arianna Menciassi - One of the best experts on this subject based on the ideXlab platform.
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Miniaturized Cutting Tool With Triaxial Force Sensing Capabilities for Minimally Invasive Surgery
Journal of Medical Devices, 2007Co-Authors: Pietro Valdastri, Paolo Dario, Arianna Menciassi, Keith Houston, Arne Sieber, Masaru Yanagihara, Masakatsu G. FujieAbstract:This paper reports a miniaturized triaxial Force sensorized cutting tool for minimally invasive robotic surgery. This device exploits a silicon-based microelectromechanical system triaxial Force sensor that acts as the core component of the system. The outer diameter of the proposed device is less than 3 mm, thus enabling the insertion through a 9 French catheter guide. Characterization tests are performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced in order to have a triaxial Force output in real time. Normal Force resolution is 8.2 bits over a Force range between 0 N and 30 N, while tangential resolution is 7 bits over a range of 5 N. Force signals with frequencies up to 250 Hz can successfully be detected, enabling haptic feedback and tissue mechanical properties investigation. Preliminary ex vivo muscular tissue cutting experiments are introduced and discussed in order to evaluate the device overall performances.
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Integration of a miniaturised triaxial Force sensor in a minimally invasive surgical tool
IEEE Transactions on Biomedical Engineering, 2006Co-Authors: Pietro Valdastri, Masakatsu Fujie, Kanako Harada, Cesare Stefanini, Lucia Beccai, Arianna Menciassi, Paolo DarioAbstract:This paper reports preliminary results on design and fabrication of a cutting tool with an integrated triaxial Force sensor to be Applied in fetal surgery procedures. The outer diameter of the proposed device is 7.4 mm, but a scaled down design can be easily achieved. Linearity and hysteresis tests have been performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced and discussed. The typical working range for the conceived instrument is around 0.3 N, while 20 N and 1 N are, respectively, maximum normal and tangential Forces for which the device robustness has been assessed.
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Miniaturised Cutting Tool With Triaxial Force Sensing Capabilities for Minimally Invasive Surgery
Volume 2: Automotive Systems Bioengineering and Biomedical Technology Fluids Engineering Maintenance Engineering and Non-Destructive Evaluation and Na, 2006Co-Authors: Pietro Valdastri, Paolo Dario, Arianna Menciassi, Keith Houston, Arne Sieber, Masaru Yanagihara, Masakatsu G. FujieAbstract:This paper reports a miniaturised triaxial Force sensorized cutting tool for minimally invasive robotic surgery. This device exploits a silicon based MEMS triaxial Force sensor that acts as the core component of the system. The outer diameter of the proposed device is less than 3 mm, thus enabling the insertion through a 9 French catheter guide. Characterization tests are performed for both normal and tangential loadings. A linear transformation relating the sensor output to the External Applied Force is introduced in order to have a triaxial Force output in real time. Normal Force resolution is 8.2 bits over a Force range between 0 N and 30 N, while tangential resolution is 8.1 over a range of 6 N. Force signals with frequencies up to 250 Hz can successfully be detected, enabling haptic feedback and tissue mechanical properties investigation. Preliminary ex vivo muscular tissue cutting experiments are introduced and discussed in order to evaluate the device overall performances.Copyright © 2006 by ASME
Paisan Khanchaitit - One of the best experts on this subject based on the ideXlab platform.
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Piezoelectric-Induced Triboelectric Hybrid Nanogenerators Based on the ZnO Nanowire Layer Decorated on the Au/polydimethylsiloxane-Al Structure for Enhanced Triboelectric Performance.
ACS applied materials & interfaces, 2018Co-Authors: Chaiyanut Jirayupat, Winadda Wongwiriyapan, Panita Kasamechonchung, Tuksadon Wutikhun, Kittipong Tantisantisom, Yossawat Rayanasukha, Thanakorn Jiemsakul, Chookiat Tansarawiput, Monrudee Liangruksa, Paisan KhanchaititAbstract:Here, we demonstrate a novel device structure design to enhance the electrical conversion output of a triboelectric device through the piezoelectric effect called as the piezo-induced triboelectric (PIT) device. By utilizing the piezopotential of ZnO nanowires embedded into the polydimethylsiloxane (PDMS) layer attached on the top electrode of the conventional triboelectric device (Au/PDMS–Al), the PIT device exhibits an output power density of 50 μW/cm2, which is larger than that of the conventional triboelectric device by up to 100 folds under the External Applied Force of 8.5 N. We found that the effect of the External piezopotential on the top Au electrode of the triboelectric device not only enhances the electron transfer from the Al electrode to PDMS but also boosts the internal built-in potential of the triboelectric device through an External electric field of the piezoelectric layer. Furthermore, 100 light-emitting diodes (LEDs) could be lighted up via the PIT device, whereas the conventional dev...
Jiaheng Nie - One of the best experts on this subject based on the ideXlab platform.
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Piezotronic effect on the luminescence of quantum dots for micro/nano-newton Force measurement
Nano Research, 2018Co-Authors: Yan Zhang, Jiaheng NieAbstract:The luminescence of semiconductor quantum dots (QDs) can be adjusted using the piezotronic effect. An External mechanical Force Applied on the QD generates a piezoelectric potential, which alters the luminescence of the QD. A small mechanical Force may induce a significant change on the emission spectrum. In the case of InN QDs, it is demonstrated that the unForced emission wavelength is more than doubled by a Force of 1 μN. The strategy of using the piezotronic effect to tune the color of the emission leads to promising noncontact Forcemeasurement applications in biological and medical sensors and Force-sensitive displays. Several piezoelectric semiconductor materials have been investigated in terms of the tunability of the emission wavelength in the presence of an External Applied Force. It is found that CdS and CdSe demonstrate much higher tunability δλ/δF, which makes them suitable for micro/nano-newton Force measurement applications.
