Ultrasonic Power and Data Link for Wireless Implantable Applications

Author

Arra, Satu ; Leskinen, Jarkko ; Heikkilä, Janne ; Vanhala, Jukka

Author_Institution

Dept. of Electr. Eng., Tampere Univ. of Technol.

fYear

2007

fDate

5-7 Feb. 2007

Abstract

Wireless implantable devices revolutionize the field of biomedical engineering as soon as satisfactory power supplies are conceived. This paper presents a novel ultrasound-based method for powering a battery-free electrical implant. Contrary to the commonly used RF and inductive methods, ultrasonic power transmission helps to avoid problems with electromagnetic coupling and offers for use a selection of data frequencies not limited by national regulations. The proof-of-concept data and power link is based on piezoelectric crystals. Measurements carried out in degassed water brought perspective to the feasibility of an ultrasonic link. Efficiencies of 21-35 % at distances between 5 mm and 105 mm were achieved

Keywords

biomedical engineering; prosthetics; ultrasonic applications; ultrasonic devices; 5 to 105 mm; battery-free electrical implant; biomedical engineering; data frequency; data link; degassed water; piezoelectric crystal; power link; ultrasonic link; ultrasonic power transmission; ultrasound-based method; wireless implantable application; wireless implantable device; Biomedical engineering; Biomedical measurements; Crystals; Electromagnetic coupling; Implants; Power supplies; Power transmission; Radio frequency; Ultrasonic imaging; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Pervasive Computing, 2007. ISWPC '07. 2nd International Symposium on

Conference_Location

San Juan

Print_ISBN

1-4244-0523-8

Electronic_ISBN

1-4244-0523-8

Type

conf

DOI

10.1109/ISWPC.2007.342668

Filename

4147127