Patent ID: 7032600
Filing Date: 2006-04-25
Classification: A61B

Abstract:
1. A method for measuring a position of an in vivo radio device administered into a living organism, comprising the steps of: transmitting a vital information signal or a position measuring signal by the in vivo radio device; receiving the vital information signal or the position measuring signal by a plurality of ex vivo radio devices disposed outside of the living organism; and measuring with a position measuring unit the position of the in vivo radio device, based on receiving characteristics of the vital information signal or the position measuring signal received by the ex vivo radio devices, wherein the position measuring unit measures the position of the in vivo radio device, based on one of phase differences of the vital information signals or the position measuring signals received by the ex vivo radio devices, and arriving directions of the vital information signals or the position measuring signals received by the ex vivo radio devices.