Multilayer out-of-plane overlap electrostatic energy harvesting structure actuated by blood pressure for powering intra-cardiac implants

Deterre, Martin; Risquez, Sarah; Bouthaud, B; Molin, Renzo Dal; Woytasik, Marion; Lefeuvre, Élie

doi:10.1088/1742-6596/476/1/012039

Cited by 17 publications

(11 citation statements)

References 2 publications

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“…The proposed design method of the out-of-plane overlap electrostatic structure was previously presented for blood pressure energy harvesting [4]. In this study, we redesigned the structure for inertial operation considering a larger displacement: 1 mm for the total displacement of the out-ofplane overlap electrostatic structure, to maximize its capacitance variation.…”

Section: Design Of the Electrostatic Structurementioning

confidence: 99%

“…This paper focuses on an electrostatic energy harvester which size is compatible with a cardiac implant designed for intravenous introduction via catheter, i.e which fits in a 6 mm diameter capsule. In previous work we have proposed to harvest regular blood pressure variations in the heart [4]. This solution required a very flexible packaging with very long-term reliability, and to date no entirely satisfactory technical solution was found.…”

Section: Introductionmentioning

confidence: 99%

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Design of a 3D multilayer out-of-plane overlap electrostatic energy harvesting MEMS for medical implant applications

Risquez

Woytasik

Wei

et al. 2015

2015 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP)

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This paper presents an innovative inertial electrostatic energy harvester for powering active medical devices implanted in the heart by scavenging the heart beat vibrations. The design of the electrostatic device has to overcome several challenges related to the very low frequencies of the mechanical excitation, the need for high reliability and more than ten years durability. Analytical and numerical modelling of the electrostatic device was carried out to maximize the capacitance variation, in order to maximize the energy conversion capability of the device. Optimization of the spring shape has been performed using numerical modelling to minimize the stress concentration in the flexible parts of the MEMS structure. Finally, based on a behavioral model including the electronic interface, we estimated that the device will be able to harvest about 10 µW average power in pulsed mode with 20 V DC output voltage for the electronic interface and 20 Hz resonant frequency, corresponding to 74 µW/cm 3 power density.

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Section: Design Of the Electrostatic Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of a 3D multilayer out-of-plane overlap electrostatic energy harvesting MEMS for medical implant applications

Risquez

Woytasik

Wei

et al. 2015

2015 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP)

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“…As the overall efficiency of the heart is about 20 or 25%, this corresponds to an overall energy consumption of several Watts [3]. Therefore, it might be possible to scavenge tens of microwatts from the heartbeat by an energy harvester without affecting the natural functioning of the heart [5].…”

Section: Energy Harvesting For the Implantsmentioning

confidence: 99%

“…M Deterre et. al [5] described the scavenging of energy by the use of regular blood pressure of the heart. The implant packaging used here is deformable so that the blood pressure forces are transmitted to the electrostatic transducer.…”

Section: Vibration Energy Harvestersmentioning

confidence: 99%

A comparative analysis of different vibration based energy harvesting techniques for implantables

Koul

Ahmed

Kakkar

2015

International Conference on Computing, Communication &Amp; Automation

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Energy harvesting is the process of scavenging electrical energy from energy sources available in the environment. A wide variety of energy sources can be exploited here. Some of the sources include kinetic energy, thermal energy, solar energy etc. With the progress in low power design, the concept of harvesting energy to power electronic circuits has also gained relevance. Electrical energy/power can be harvested by exploiting the human body motion. Different types of transducers can be used for this. Piezoelectric materials, variable capacitors, and inductive generators can be employed here according to the type of harvester. An important and vast area of application of energy harvesting can be the medical implants field. Energy harvesting for the powering of a new generation of medical implants, miniaturized implants (functioning without battery) such as a pacemaker is discussed. Various potential techniques for this energy transduction are studied, surveyed and compared. Also the different types of mechanical energy sources in the implant environment are explored.

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“…The mechanical part and the transducer are usually implemented as a single miniature device. Many authors have made novel advances in the area of eKEH with different geometries of the mechanical part and of the transducer: dual cavity MEMS resonators [5], 3 degree of freedom MEMS transducers [6,7], multilayer comb geometries [8] and devices employing me- [9]. The goal of these devices is to obtain the largest possible time variation of the transducer capacitance when the device is submitted to external vibrations.…”

Section: Introductionmentioning

confidence: 99%

Complete electromechanical analysis of electrostatic kinetic energy harvesters biased with a continuous conditioning circuit

O'Riordan

Galayko

Basset

et al. 2016

Sensors and Actuators A: Physical

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Multilayer out-of-plane overlap electrostatic energy harvesting structure actuated by blood pressure for powering intra-cardiac implants

Cited by 17 publications

References 2 publications

Design of a 3D multilayer out-of-plane overlap electrostatic energy harvesting MEMS for medical implant applications

Design of a 3D multilayer out-of-plane overlap electrostatic energy harvesting MEMS for medical implant applications

A comparative analysis of different vibration based energy harvesting techniques for implantables

Complete electromechanical analysis of electrostatic kinetic energy harvesters biased with a continuous conditioning circuit

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