Patent ID: 6724200
Filing Date: 2004-04-20
Classification: A61B

Abstract:
An apparatus for measuring the bioelectrical impedance of a living body in which the impedance of the living body can be determined by flowing a weak electric current of high-frequency between two selected points on the living body and determining the voltage appearing between another two points selected in the current passage in which the weak current flows, the apparatus comprising:a measuring apparatus (1) including a high-frequency current source (10), a high-frequency current determining section (13, 20) and a voltage determining section (15); at least one high-frequency current supplying probe (21, 22) connected to said high-frequency current source (10) via a high frequency current supplying cable (81, 82) and to said high-frequency current determining section (13, 20) via a shielded-conductor cable (31, 32); a pair of high-frequency current supplying electrodes (41, 42) to be applied to said two selected points; and a pair of voltage measuring electrodes (43, 44) to be applied to said another two points, said electrodes (43, 44) connected to said voltage determining section (15); wherein said at least one high-frequency current supplying probe (21, 22) has one of said pair of high-frequency current supplying electrodes (41, 42) and a high-frequency current detector (51, 52) connected to and positioned in the vicinity of said one of said pair of high-frequency current supplying electrodes (41, 42).