Body water amount condition judging apparatus by multi-frequency bioelectric impedance measurement
AssigneeTanita Corporation
InventorsKatsumi Takehara, Tomoko Takehara
Life of this patent
Estimating the term…
Abstract
A body water amount condition judging apparatus is provided wherein at least two values selected from intra-cellular water resistance, extra-cellular water resistance, a combined resistance of the intracellular and extra-cellular water resistance, and the ratio of intra-cellular and extra-cellular water are used as the judging parameters, which values are obtained based on the bioelectric impedance measured in multi-frequency bioelectric impedance measurement. Using these parameters, it is possible to judge the body water amount condition considering not only total body water amount condition, but each constituent component of body water as well.
Claims14
A body water amount condition judging apparatus, in which at least two values selected from intra-cellular water resistance, extra-cellular water resistance, combined resistance of the intra-cellular and extra-cellular water resistance, and a ratio of intra-cellular and extra-cellular water are judging parameters for body water amount condition, comprising:
- a multi-frequency bioelectric impedance measuring device;
- a calculating device;
- a reference value determining unit;
- a body water amount condition judging unit;
- and
- a display device, wherein,
- said multi-frequency bioelectric impedance measuring device supplies a plurality of alternating current of different frequencies to a body of a subject and measures a bioelectric impedance value,
- said calculating device calculates the values of each judging parameter based on the bioelectric impedance value measured,
- said reference value determining unit determines reference values for each judging parameter based on previously calculated judging parameter values for the subject of each respective judging parameter,
- said body water amount condition judging unit judges body water amount condition by comparing each calculated judging parameter value with the determined judging parameters of the kind, and
- said display device displays the judging result of said body water amount condition so judged.
A body water amount condition judging apparatus, in which at least two values selected from intra-cellular water resistance, extra-cellular water resistance, combined resistance of the intra-cellular and extra-cellular water resistance, and a ratio of intra-cellular and extra-cellular water are judging parameters for body water amount condition, comprising:
- a multi-frequency bioelectric impedance measuring device;
- a calculating device;
- a reference value determining unit;
- a body water amount condition judging unit;
- and
- a display device, wherein,
- said multi-frequency bioelectric impedance measuring device supplies a plurality of alternating current of different frequencies to a body of a subject and measures a bioelectric impedance value,
- said calculating device calculates the values of each judging parameter based on the bioelectric impedance value measured,
- said reference value determining unit determines reference values for each judging parameter based on previously calculated judging parameter values for the subject of each respective judging parameter,
- said body water amount condition judging unit judges body water amount condition by comparing each calculated judging parameter value with the determined judging parameters of the kind, and
- said display device displays the judging result of said body water amount condition so judged;
- wherein said reference value determining unit determines that an average value of each judging parameter of the past is a reference value of a judging parameter of the same kind.
A body water amount condition judging apparatus, in which at least two values selected from intra-cellular water resistance, extra-cellular water resistance, combined resistance of the intra-cellular and extra-cellular water resistance, and a ratio of intra-cellular and extra-cellular water are judging parameters for body water amount condition, comprising:
- a multi-frequency bioelectric impedance measuring device;
- a calculating device;
- a reference value determining unit;
- a body water amount condition judging unit;
- and
- a display device, wherein,
- said multi-frequency bioelectric impedance measuring device supplies a plurality of alternating current of different frequencies to a body of a subject and measures a bioelectric impedance value,
- said calculating device calculates the values of each judging parameter based on the bioelectric impedance value measured,
- said reference value determining unit determines reference values for each judging parameter based on previously calculated judging parameter values for the subject of each respective judging parameter,
- said body water amount condition judging unit judges body water amount condition by comparing each calculated judging parameter value with the determined judging parameters of the kind, and
- said display device displays the judging result of said body water amount condition so judged;
- wherein said reference value determining unit determines that the latest value in judging parameters of the past is a reference value of a judging parameter of the same kind.
A body water amount condition judging apparatus, in which at least two values selected from intra-cellular water resistance, extra-cellular water resistance, combined resistance of the intra-cellular and extra-cellular water resistance, and a ratio of intra-cellular and extra-cellular water are judging parameters for body water amount condition, comprising:
- a multi-frequency bioelectric impedance measuring device;
- a calculating device;
- a reference value determining unit;
- a body water amount condition judging unit;
- and
- a display device;
- wherein said multi-frequency bioelectric impedance measuring device supplies a plurality of alternating current of different frequencies to a body of a subject and measures a bioelectric impedance value,
- said calculating device calculates the values of each judging parameter based on the bioelectric impedance value measured,
- said reference value determining unit determines reference values for each judging parameter based on previously calculated judging parameter values of each respective judging parameter,
- said body water amount condition judging unit judges body water amount condition by comparing each calculated judging parameter value with the determined judging parameters of the kind,
- said display device displays the judging result of said body water amount condition so judged,
- said reference value determining unit determines that an average value of each judging parameter of the past is a reference value of a judging parameter of the same kind, and
- said reference value determining unit does not use a value of a judging parameter for determining a reference value of the judging parameter, when the value of the judging parameter is abnormal;
- the apparatus further comprising an abnormal value selecting device, wherein said abnormal value selecting device decides whether a subject uses a value of a judging parameter for determining a reference value or not, and said reference value determining unit determines whether the value of the judging parameter is abnormal or not responding to said abnormal value selecting device.
A body water amount condition judging apparatus, in which at least two values selected from intra-cellular water resistance, extra-cellular water resistance, combined resistance of the intra-cellular and extra-cellular water resistance, and a ratio of intra-cellular and extra-cellular water are judging parameters for body water amount condition, comprising:
- a multi-frequency bioelectric impedance measuring device;
- a calculating device;
- a reference value determining unit;
- a body water amount condition judging unit;
- and
- a display device;
- wherein said multi-frequency bioelectric impedance measuring device supplies a plurality of alternating current of different frequencies to a body of a subject and measures a bioelectric impedance value,
- said calculating device calculates the values of each judging parameter based on the bioelectric impedance value measured,
- said reference value determining unit determines reference values for each judging parameter based on previously calculated judging parameter values of each respective judging parameter,
- said body water amount condition judging unit judges body water amount condition by comparing each calculated judging parameter value with the determined judging parameters of the kind,
- said display device displays the judging result of said body water amount condition so judged,
- said reference value determining unit determines that the latest value in judging parameters of the past is a reference value of a judging parameter of the same kind, and
- said reference value determining unit does not use a value of a judging parameter for determining a reference value of the judging parameter, when the value of the judging parameter is abnormal;
- the apparatus further comprising an abnormal value selecting device, wherein said abnormal value selecting device decides whether a subject uses a value of a judging parameter for determining a reference value or not, and said reference value determining unit determines whether the value of the judging parameter is abnormal or not responding to said abnormal value selecting device.
A body water amount condition judging apparatus, in which at least two values selected from intra-cellular water resistance, extra-cellular water resistance, combined resistance of the intra-cellular and extra-cellular water resistance, and a ratio of intra-cellular and extra-cellular water are judging parameters for body water amount condition, comprising:
- a multi-frequency bioelectric impedance measuring device;
- a calculating device;
- a reference value determining unit;
- a body water amount condition judging unit;
- and
- a display device;
- wherein said multi-frequency bioelectric impedance measuring device supplies a plurality of alternating current of different frequencies to a body of a subject and measures a bioelectric impedance value,
- said calculating device calculates the values of each judging parameter based on the bioelectric impedance value measured,
- said reference value determining unit determines reference values for each judging parameter based on previously calculated judging parameter values of each respective judging parameter,
- said body water amount condition judging unit judges body water amount condition by comparing each calculated judging parameter value with the determined judging parameters of the kind,
- said display device displays the judging result of said body water amount condition so judged,
- said reference value determining unit determines that an average value of each judging parameter of the past is a reference value of a judging parameter of the same kind,
- said reference value determining unit does not use a value of a judging parameter for determining a reference value of the judging parameter, when the value of the judging parameter is abnormal,
- said reference value determining unit determines whether a value of a judging parameter is abnormal or not depending upon the time a bioelectric impedance value is determined for calculating the value of the judging parameter, and
- said reference value determining unit decides that a value of a judging parameter is abnormal if the time a bioelectric impedance value is determined for calculating the value of the judging parameter about the time the subject awakens.
A body water amount condition judging apparatus, in which at least two values selected from intra-cellular water resistance, extra-cellular water resistance, combined resistance of the intra-cellular and extra-cellular water resistance, and a ratio of intra-cellular and extra-cellular water are judging parameters for body water amount condition, comprising:
- a multi-frequency bioelectric impedance measuring device;
- a calculating device;
- a reference value determining unit;
- a body water amount condition judging unit;
- and
- a display device;
- wherein said multi-frequency bioelectric impedance measuring device supplies a plurality of alternating current of different frequencies to a body of a subject and measures a bioelectric impedance value,
- said calculating device calculates the values of each judging parameter based on the bioelectric impedance value measured,
- said reference value determining unit determines reference values for each judging parameter based on previously calculated judging parameter values of each respective judging parameter,
- said body water amount condition judging unit judges body water amount condition by comparing each calculated judging parameter value with the determined judging parameters of the kind,
- said display device displays the judging result of said body water amount condition so judged,
- said reference value determining unit determines that the latest value in judging parameters of the past is a reference value of a judging parameter of the same kind,
- said reference value determining unit does not use a value of a judging parameter for determining a reference value of the judging parameter, when the value of the judging parameter is abnormal,
- said reference value determining unit determines whether a value of a judging parameter is abnormal or not depending upon the time a bioelectric impedance value is determined for calculating the value of the judging parameter, and
- said reference value determining unit decides that a value of a judging parameter is abnormal if the time a bioelectric impedance value is determined for calculating the value of the judging parameter about the time the subject awakens.
Dependencies are inferred from the claim text.