A novel electrostatic micromachined pump for drug delivery systems

Teymoori, Mir Majid; Abbaspour-Sani, Ebrahim

doi:10.1109/smelec.2002.1217785

Cited by 8 publications

(10 citation statements)

References 7 publications

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“…Recommendations have been presented based on specific requirements. With current advancements in micro fabrication techniques, pursuing more compact dimensions and enhancing the pump performance while (Teymoori and Abbaspour-Sani 2002) lowering power consumption, has become a main trend. New approaches can be realized in a simple implementation scheme either by using a new actuation mechanism, such as ionic conductive polymer film actuation, surface tension, and electrowetting, or using new materials such as PDMS, silicon rubber, plastic and parylene.…”

Section: Resultsmentioning

confidence: 99%

“…Most of the aforementioned actuation mechanisms have been applied to drive the peristaltic micropump. After the first piezoelectric peristaltic micropump was reported in 1990, electrostatic (Teymoori and Abbaspour-Sani 2002;Teymoori and Abbaspour-Sani 2005;Lin et al 2007), magnetic , pneumatic (Wang and Lee 2006), and thermopneumatic (Grosjean and Tai 1999) peristaltic micropumps can be found in recently published literature. The main characteristic is that the structure is simple compared to the reciprocating pumps and shows promising applications in the biomedical field.…”

Section: Three-chamber Configurationmentioning

confidence: 98%

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Current micropump technologies and their biomedical applications

Amirouche

Zhou

Johnson³

2009

Microsyst Technol

289

169

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This paper briefly reviews recent research and developments of micropump designs with a particular emphasis on mechanical micropumps and summarizes their applications in biomedical fields. A comprehensive description of the actuation schemes, flow directing concepts and liquid chamber configurations for micro pumping is provided with illustrative diagrams. Then, a comparative study of current mechanical micropump designs highlighting their advantages and limitations for various applications is presented, based on performance criteria such as actuation voltage and power consumption, ranges of operating frequency and maximum flow rate and backpressure. This study compiles and provides some basic guidelines for selection of the actuation schemes and flow rate requirements in biomedical applications. Different micropumps in biomedical applications, such as blood transport and drug delivery also have been reviewed.

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Section: Resultsmentioning

confidence: 99%

Section: Three-chamber Configurationmentioning

confidence: 98%

Current micropump technologies and their biomedical applications

Amirouche

Zhou

Johnson³

2009

Microsyst Technol

289

169

View full text Add to dashboard Cite

show abstract

“…With the technological advances in MEMS (micro electro-mechanical systems) 1 , low powered ICs are being used in wireless sensor network (WSN) nodes. This has made the applications of WSNs commoner and closer to the real world scenarios.…”

Section: Introductionmentioning

confidence: 99%

Analysing wireless sensor network deployment performance using connectivity

Aval¹,

Razak²,

Ismail³

2013

ScienceAsia

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In contrast to the random deployment method for wireless sensor networks, there are various applications that require manual deployment. While the deployment is costly and usually there is no change in the position of the nodes, it is better to evaluate the deployment scheme before doing it. There are different existing metrics to evaluate a deployment including coverage, connectivity, network lifetime, and cost. With emerging real applications of WSNs, it has become a must to evaluate the deployments with more realistic metrics and model. In this paper we have proposed an accumulative path reliability rate metric, regarding the hop-based nature of routing in these networks, to measure the connectivity between two nodes that are not adjacent. We have applied the metric to existing deployment methods and analysed the results.

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“…Na et al (2003) followed the design of Cao et al (2001) to develop theoretical modeling and fabricate a peristaltic micropump for an implantable medical drug delivery system. Teymoori and Abbaspour-Sani (2004), who also proposed a micropump for drug delivery applications based on peristaltic motion, used the same type of active, normally closing membrane valves as those used by Cao et al (2001). However, their micropump was designed to satisfy important requirements of a drug delivery micropump as specified in the literature and they used electrostatic actuation.…”

Section: Introductionmentioning

confidence: 99%

Development of a Peristaltic Micropump with Lightweight Piezo-Composite Actuator Membrane Valves

Pham

Goo

2011

International Journal of Aeronautical and Space Sciences

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A peristaltic micropump with lightweight piezo-composite actuator (LIPCA) membrane valves is presented. The micropump contained three cylinder chambers that were connected by microchannels and two active membrane valves. A circular miniature LIPCA was developed and manufactured to be used as actuating diaphragms. The LIPCA diaphragm acted as an active membrane valve that alternate between open and closed positions at the inlet and outlet in order to produce high pumping pressure. In this LIPCA, a lead zirconium titanate ceramic with a thickness of 0.1 mm was used as an active layer. The results confirmed that the actuator produced a large out-of-plane deflection. During the design process, a coupled field analysis was conducted in order to predict the actuating behavior of the LIPCA diaphragm; the behavior of the actuator was investigated from both a theoretical and experimental perspective. The active membrane valve concept was introduced as a means for increasing pumping pressure, and microelectromechanical system techniques were used to fabricate the peristaltic micropump. The pumping performance was analyzed experimentally in terms of the flow rate, pumping pressure and power consumption.

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A novel electrostatic micromachined pump for drug delivery systems

Cited by 8 publications

References 7 publications

Current micropump technologies and their biomedical applications

Current micropump technologies and their biomedical applications

Analysing wireless sensor network deployment performance using connectivity

Development of a Peristaltic Micropump with Lightweight Piezo-Composite Actuator Membrane Valves

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