Measurement apparatus
AssigneeImpedimed Limited
InventorsScott Chetham, Christopher Newton Daly, Ian John Bruinsma
Life of this patent
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Abstract
A method for determining biological indicators, the method including, in a processing system causing at least one radiation attenuation measurement to be performed and determining at least one first biological indicator using determined radiation attenuation. In addition to this, method includes causing at least one impedance measurement to be performed and determining at least one second biological indicator using a determined impedance measurement.
Claims80
1) A method for determining biological indicators using a processing system, comprising the steps of:
- a) performing at least one radiation attenuation measurement;
- b) determining at least one first biological indicator using a determined radiation attenuation;
- c) performing at least one impedance measurement;
- and
- d) determining at least one second biological indicator using a determined impedance measurement.
30) Apparatus for determining biological indicators, comprising a processing system means for:
- a) performing at least one radiation attenuation measurement;
- b) determining at least one first biological indicator using a determined radiation attenuation;
- c) performing at least one impedance measurement;
- and
- d) determining at least one second biological indicator using a determined impedance measurement.
42) A method for performing impedance measurements on a subject using a processing system, comprising the steps of:
- a) causing a first signal to be applied to the subject;
- b) determining an indication of a second signal measured across the subject;
- c) using the indication of the second signal to determine any imbalance;
- d) determining a modified first signal in accordance with the imbalance;
- and
- e) causing the modified first signal to be applied to the subject to thereby allow at least one impedance measurement to be performed.
51) (canceled)
52) Apparatus for performing impedance measurements, comprising a processing system for:
- a) causing a first signal to be applied to the subject;
- b) determining an indication of a second signal measured across the subject;
- c) using the indication of the second signal to determine an imbalance;
- d) determining a modified first signal in accordance with the imbalance;
- and
- e) causing the modified first signal to be applied to the subject to thereby allow at least one impedance measurement to be performed.
67) (canceled)
68) Apparatus for use in performing impedance measurements on a subject, comprises:
- leads for connecting a measuring device to an electrode system, the electrode system comprising a signal generator and a sensor, and the leads comprising:
- a) at least two connections for connecting the measuring device and the signal generator, and the measuring device and the sensor;
- and
- b) a shield for each of the at least two connections, the shields being electrically connected, and connected to a reference potential in each of the measuring device and the electrode system.
72) (canceled)
73) Apparatus for performing impedance measurements on a subject, wherein the apparatus comprises:
- a) at least two electrode systems, each electrode system comprising:
- i) a signal generator for applying a first signal to be applied to the subject;
- ii) a sensor for sensing a second signal across the subject;
- iii) a first electrode for coupling the signal generator to the subject;
- and
- iv) a second electrode for coupling the sensor to the subject;
- and
- b) a measuring device for controlling the electrode systems to allow impedance measurements to be performed;
- and
- c) at least two leads for connecting the measuring device to the electrode systems, the leads being arranged to at least one of:
- i) extend from the measuring device in different directions to thereby reduce inductive coupling therebetween;
- and
- ii) minimize the lead length.
78) (canceled)
79) A method of using apparatus for performing impedance measurements on a subject, wherein the apparatus comprises:
- a) at least two electrode systems, each electrode system comprising:
- i) a signal generator for applying a first signal to be applied to the subject;
- ii) a sensor for sensing a second signal across the subject;
- iii) a first electrode for coupling the signal generator to the subject;
- and
- iv) a second electrode for coupling the sensor to the subject;
- and
- b) a measuring device for controlling the electrode systems to allow impedance measurements to be performed;
- and
- c) at least two leads for connecting the measuring device to the electrode systems, wherein the method comprises, arranging the leads to at least one of:
- i) extend from the measuring device in different directions to thereby reduce inductive coupling therebetween;
- and
- ii) minimize the lead length.
80-89. (canceled)
Dependencies are inferred from the claim text.