Results 11 to 20 of about 191 (125)

Optimal Design and Simulation of a Microsuction Cup Integrated with a Valveless Piezoelectric Pump for Robotics

open access: yesShock and Vibration, 2018
The traditional suction mechanism with an air pump in robotics is difficult to miniaturize. Integrating a piezoelectric pump into a suction cup is an effective method to achieve miniaturization.
Bingshan Hu, Hongliu Yu
doaj   +3 more sources

Design and Testing of a Valveless Piezoelectric Pump with Conical Vortex Diodes [PDF]

open access: yesMATEC Web of Conferences, 2020
The valveless piezoelectric pump delivers fluid based on the difference of flow resistance of internal tube. In this paper, a vortex diode with conical tangential tube is proposed, which possesses the great characteristic of reverse cut-off, and the ...
Zou Lei, Li Kai, Huang Jun
doaj   +2 more sources

Investigation on the Influence of Design Parameters of Streamline Flow Tubes on Pump Performance

open access: yesShock and Vibration, 2021
Studies have shown that the valveless piezoelectric pump with streamline flow tubes (VPPSFTs) can increase the flow rate while reducing the vortex, which has a broad application prospect and conforms to the huge potential demand in the fields of medical ...
Kan Bian   +7 more
doaj   +2 more sources

Research and verification of similar laws in valveless piezoelectric micropumps

open access: yesMicro & Nano Letters, 2021
Due to the constraints of actual conditions, large‐scale research and analysis of micropumps are difficult to achieve. In this paper, the micropump is divided into a vibrating part and a flowing part through a similar theory research method, and the two ...
Xiuhua He, Chunming Shan, Hang Yang
doaj   +2 more sources

A Novel PZT Pump with Built-in Compliant Structures [PDF]

open access: yesSensors, 2019
Different to the traditionally defined valved piezoelectric (PZT) pump and valveless PZT pump, two groups of PZT pumps with built-in compliant structures—with distances between the free ends of 0.2 mm (Group A) and 0 mm (Group B)—were ...
Qibo Bao   +6 more
doaj   +2 more sources

Bioenergy‐Based Closed‐Loop Medical Systems for the Integration of Treatment, Monitoring, and Feedback

open access: yesSmall Science, Volume 3, Issue 10, October 2023., 2023
Bioenergy is a green, accessible, and sustainable energy source. Personalized and intelligent medical treatment is more in line with people's needs. Closed‐loop medical systems integrate diagnostic, therapeutic, and feedback components. Bioenergy is the future power source for wearable medical devices.
Guanghui Zhang   +4 more
wiley   +1 more source

Living cell‐laden hydrogels: Unleashing the future of responsive biohybrid systems

open access: yesResponsive Materials, Volume 1, Issue 1, August 2023., 2023
Responsive biohybrid systems using living cells combined with hydrogels offer unique advantages in simulating the construction and functions of human tissues or organs and thus have attracted extensive attention and research interest. This review focuses on advanced manufacturing technologies, innovative applications, and different triggering ...
Xuejia Hu   +4 more
wiley   +1 more source

A Versatile Flexible Polymer Actuator System for Pumps, Valves, and Injectors Enabling Fully Disposable Active Microfluidics

open access: yesAdvanced Materials Technologies, Volume 6, Issue 1, January 2021., 2021
A new type of flexible, all‐polymer diaphragm actuator module using conductive polymer PEDOT‐PSS‐based soft actuators is constructed to drive active microfluidic components. Diverse possibilities of using the actuator module to inject liquids, regulate flow, and unidirectionally pump fluids are demonstrated.
Yong Zhong   +2 more
wiley   +1 more source

Research on a Piezoelectric Pump with Flexible Valves

open access: yesApplied Sciences, 2021
Imitating the structure of the venous valve and its characteristics of passive opening and closing with changes in heart pressure, a piezoelectric pump with flexible valves (PPFV) was designed. Firstly, the structure and the working principle of the PPFV
Weiqing Huang   +7 more
doaj   +1 more source

A Novel Artificial Pancreas: Energy Efficient Valveless Piezoelectric Actuated Closed-Loop Insulin Pump for T1DM

open access: yesApplied Sciences, 2020
The objective of this work is to develop a closed-loop controlled insulin pump to keep the blood glucose level of Type 1 diabetes mellitus (T1DM) patients in the desired range.
Alp Kaçar   +2 more
doaj   +1 more source

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