Comparative Study of Bio-implantable Acoustic Generator Architectures
نویسندگان
چکیده
Abstract. This paper is a comparative study of the design spaces of two bio-implantable acoustically excited generator architectures: the thickness-stretch-mode circular piezoelectric plate and the bending-mode unimorph piezoelectric diaphragm. The generators are part of an acoustic power transfer system for implanted sensors and medical devices such as glucose monitors, metabolic monitors, drug delivery systems, etc. Our studies indicate that at small sizes the diaphragm architecture outperforms the plate architecture. This paper will present the results of simulation studies and initial experiments that explore the characteristics of the two architectures and compare their performance.
منابع مشابه
Ultrasonically powered piezoelectric generators for bio-implantable sensors: Plate versus diaphragm
This article is a comparative study of the design spaces of two bio-implantable acoustically excited generator architectures: the bulk-mode piezoelectric plate (plate) and the flexure-mode unimorph piezoelectric diaphragm (diaphragm). The acoustic to electrical power transducers, or generators, are part of an acoustic, or ultrasonic, power transfer system for implantable sensors and medical dev...
متن کاملA review of acoustic power transfer for bio-medical implants
Bio-implantable devices have been used to perform therapeutic functions such as drug delivery or diagnostic monitoring of physiological parameters. Proper operation of these devices depends on the continuous reliable supply of power. A battery, which is the conventional method to supply energy, is problematic in many of these devices as it limits the lifetime of the implant or dominates the siz...
متن کاملStretchable Loudspeaker using Liquid Metal Microchannel
Considering the various applications of wearable and bio-implantable devices, it is desirable to realize stretchable acoustic devices for body-attached applications such as sensing biological signals, hearing aids, and notification of information via sound. In this study, we demonstrate the facile fabrication of a Stretchable Acoustic Device (SAD) using liquid metal coil of Galinstan where the ...
متن کاملImplementation of a direct install 3-pole type EM transducer in round window niche for implantable middle ear hearing aids.
Since the 1980's, various types of implantable hearing aids using unique means for delivering acoustic power to the inner ear have been developed. Recently, implantable hearing aids that stimulate the round window by the middle ear transducer have received great attention because it reduces loading effect at the ossicular chain. In this study, we have implemented a direct install 3-pole type EM...
متن کاملComparative Study of Self-organizing Robotic Systems Regarding Basic Architecture
Self-organization has become an intensely researched area, being considered the new control system science. Different self-organizing algorithms (bio and non-bio inspired) have been developed by scientist worldwide with general applicability in autonomous systems, multi-robot systems, autonomic networking, sensor and actor networks and mobile ad hoc networks. This paper presents a comparative a...
متن کامل