| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique to improve the communication between a radio device inside a body and a transmitter or receiver outside a body by using part of the casing of a device as an antenna. <P>SOLUTION: A medical device, for use in the inside of the body of a mammalian subject, includes a casing adapted for insertion into the body of the mammalian subject, the casing having an outer surface and including an insulating material and an electrically-conductive material, which are arranged so that an area of the outer surface of the casing is electrically conductive. A transmitter is adapted to generate an electrical signal and is encapsulated in the casing and coupled to the conductive material so that the electrically-conductive area of the outer surface serves as an antenna for transmitting the signal to a receiver outside the body. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
