%0 Journal Article %1 calo2020compression %A Calo, Simone %A Chandler, James H. %A Campisano, Federico %A Obstein, Keith L. %A Valdastri, Pietro %D 2020 %J IEEE/ASME Transactions on Mechatronics %K Hydraulic/Pneumatic actuation actuation,medical robotics,soft robotics,waterjet %N 2 %P 1005--1015 %R 10.1109/TMECH.2019.2960308 %T A Compression Valve for Sanitary Control of Fluid-Driven Actuators %V 25 %X With significant research focused on integrating robotics into medical devices, sanitary control of pressurizing fluids in a precise, accurate, and customizable way is highly desirable. Current sanitary flow control methods include pinch valves which clamp the pressure line locally to restrict fluid flow; resulting in damage and variable flow characteristics over time. This article presents a sanitary compression valve based on an eccentric clamping mechanism. The proposed valve distributes clamping forces over a larger area, thereby reducing the plastic deformation and associated influence on flow characteristic. Using the proposed valve, significant reductions in plastic deformation (up to 96\%) and flow-rate error (up to 98\%) were found, when compared with a standard pinch valve. Additionally, an optimization strategy presents a method for improving linearity and resolution over the working range to suit specific control applications. The valve efficacy has been evaluated through controlled testing of a water jet-propelled low-cost endoscopic device. In this case, use of the optimized valve shows a reduction in the average orientation error and its variation, resulting in smoother movement of the endoscopic tip when compared to alternative wet and dry valve solutions. The presented valve offers a customizable solution for sanitary control of fluid-driven actuators.

@article{calo2020compression, abstract = {With significant research focused on integrating robotics into medical devices, sanitary control of pressurizing fluids in a precise, accurate, and customizable way is highly desirable. Current sanitary flow control methods include pinch valves which clamp the pressure line locally to restrict fluid flow; resulting in damage and variable flow characteristics over time. This article presents a sanitary compression valve based on an eccentric clamping mechanism. The proposed valve distributes clamping forces over a larger area, thereby reducing the plastic deformation and associated influence on flow characteristic. Using the proposed valve, significant reductions in plastic deformation (up to 96{\%}) and flow-rate error (up to 98{\%}) were found, when compared with a standard pinch valve. Additionally, an optimization strategy presents a method for improving linearity and resolution over the working range to suit specific control applications. The valve efficacy has been evaluated through controlled testing of a water jet-propelled low-cost endoscopic device. In this case, use of the optimized valve shows a reduction in the average orientation error and its variation, resulting in smoother movement of the endoscopic tip when compared to alternative wet and dry valve solutions. The presented valve offers a customizable solution for sanitary control of fluid-driven actuators.}, added-at = {2023-05-10T16:23:27.000+0200}, author = {Calo, Simone and Chandler, James H. and Campisano, Federico and Obstein, Keith L. and Valdastri, Pietro}, biburl = {https://www.bibsonomy.org/bibtex/2a5f6c432adc7b984df4102e11e5a9a9e/sassw}, doi = {10.1109/TMECH.2019.2960308}, interhash = {aa8953965ae25b3899f4e73640240b69}, intrahash = {a5f6c432adc7b984df4102e11e5a9a9e}, issn = {1941014X}, journal = {IEEE/ASME Transactions on Mechatronics}, keywords = {Hydraulic/Pneumatic actuation actuation,medical robotics,soft robotics,waterjet}, number = 2, pages = {1005--1015}, timestamp = {2023-05-10T16:23:27.000+0200}, title = {{A Compression Valve for Sanitary Control of Fluid-Driven Actuators}}, volume = 25, year = 2020 }