Patents Assigned to Impedimed Limited
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Patent number: 11832928Abstract: System for determining heart failure indicator indicative of a heart failure disease state in a subject, including processing device(s) that at least in part control signal generator(s) and receives an indication of a measured response signal from sensor(s) allowing first and second impedance measurement(s) to be performed across at least one body segment, determines a first fluid level indicator using first impedance value(s) obtained by performing the first impedance measurement(s), the first fluid indicator being indicative of a first ratio of ECF to TBW at a first time, determines a second fluid level indicator using second impedance value(s) obtained by performing the second impedance measurement(s), the second fluid indicator being indicative of a second ratio of ECF to TBW at a second time, determines a fluid level change using a difference in the first and second fluid level indicators, and, determines the heart failure indicator using the fluid level change.Type: GrantFiled: February 15, 2017Date of Patent: December 5, 2023Assignee: IMPEDIMED LIMITEDInventor: Catherine Anne Kingsford
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Patent number: 11737678Abstract: Apparatus for performing impedance measurements on a subject. The apparatus includes a first processing system for determining an impedance measurement procedure and determining instructions corresponding to the measurement procedure. A second processing system is provided for receiving the instructions, using the instructions to generate control signals, with the control signals being used to apply one or more signals to the subject. The second processing system then receives first data indicative of the one or more signals applied to the subject, second data indicative of one or more signals measured across the subject and performs at least preliminary processing of the first and second data to thereby allow impedance values to be determined.Type: GrantFiled: May 3, 2019Date of Patent: August 29, 2023Assignee: ImpediMed LimitedInventors: Scott Chetham, Andrew William Ward, James McFarlane Kennedy
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Patent number: 11660013Abstract: A method of performing impedance measurements on a subject. The method includes using a processing system to determine at least one impedance measurement to be performed, and at one electrode arrangement associated with the determined measurement. A representation of the arrangement is displayed so the impedance measurement can be performed once the electrodes have been arranged in accordance with the displayed representation.Type: GrantFiled: April 7, 2017Date of Patent: May 30, 2023Assignee: IMPEDIMED LIMITEDInventors: Scott Chetham, Leigh Cordwin Ward, Tim Essex
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Patent number: 11612332Abstract: A method of determining an indication of the hydration status relating to a subject. The method includes determining a measured impedance value for at least one body segment, and then; for each body segment, using the measured impedance values to determine at least one indicator at least partially indicative of a level of extracellular fluid. Indicators can then be used to determine an indication of the hydration status.Type: GrantFiled: June 14, 2017Date of Patent: March 28, 2023Assignee: IMPEDIMED LIMITEDInventor: Scott Chetham
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Patent number: 11304610Abstract: A system for determining reference signatures for use in assisting identification of a body state in a biological subject, the system including at least one processing device that obtains reference data for each of a plurality of reference individuals, the reference data including at least one reference impedance indicator obtained by performing at least one impedance measurement on the reference individual, a body state indication indicative of any body states associated with the reference individual and characteristic data indicative of one or more physical characteristics of the reference individual and analyses the reference data to establish one or more reference signatures, each reference signature being indicative of at least one reference impedance indicator associated with a respective body state for respective physical characteristics.Type: GrantFiled: February 15, 2017Date of Patent: April 19, 2022Assignee: Impedimed LimitedInventors: Richard Roland Carreon, Jack Gerald Cosentino
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Patent number: 11185239Abstract: A system for determining reference signatures for use in assisting identification of a body state in a biological subject, the system including at least one processing device that obtains reference data for each of a plurality of reference individuals, the reference data including at least one reference impedance indicator obtained by performing at least one impedance measurement on the reference individual, a body state indication indicative of any body states associated with the reference individual and characteristic data indicative of one or more physical characteristics of the reference individual and analyses the reference data to establish one or more reference signatures, each reference signature being indicative of at least one reference impedance indicator associated with a respective body state for respective physical characteristics.Type: GrantFiled: February 15, 2017Date of Patent: November 30, 2021Assignee: IMPEDIMED LIMITEDInventors: Richard Roland Carreon, Jack Gerald Cosentino
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Patent number: 11058318Abstract: A method for use in determining fluid levels within a subject, the method including, in a processing device, determining at least one impedance value measured for the subject, determining physical dimensions for at least part of at least one segment of the subject, using the physical dimensions to determine a shape factor at least partially indicative of a shape of the at least one segment and calculating a fluid indicator indicative of the fluid levels in the segment at least in part using the at least one impedance value and the shape factor.Type: GrantFiled: July 14, 2016Date of Patent: July 13, 2021Assignee: IMPEDIMED LIMITEDInventors: Leigh Ward, Tim Essex
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Patent number: 10327665Abstract: Apparatus for performing impedance measurements on a subject. The apparatus includes a first processing system for determining an impedance measurement procedure and determining instructions corresponding to the measurement procedure. A second processing system is provided for receiving the instructions, using the instructions to generate control signals, with the control signals being used to apply one or more signals to the subject. The second processing system then receives first data indicative of the one or more signals applied to the subject, second data indicative of one or more signals measured across the subject and performs at least preliminary processing of the first and second data to thereby allow impedance values to be determined.Type: GrantFiled: August 18, 2016Date of Patent: June 25, 2019Assignee: Impedimed LimitedInventors: Scott Chetham, Andrew William Ward, James McFarlane Kennedy
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Patent number: 10307074Abstract: A probe for use in performing impedance measurements on a subject. The probe includes a housing for being held by an operator in use, a contact surface for contacting the subject and a connector for connecting the contact surface to a measuring device.Type: GrantFiled: April 17, 2008Date of Patent: June 4, 2019Assignee: IMPEDIMED LIMITEDInventor: Leigh Cordwin Ward
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Patent number: 10070800Abstract: A method for use in performing impedance measurements on a subject. The method includes, in a processing system, determining at least one first impedance value, measured at a site using a first electrode configuration, determining at least one second impedance value, measured at the site using a second electrode configuration, and determining the presence, absence or degree of an anomaly using the first and second impedance values.Type: GrantFiled: December 8, 2015Date of Patent: September 11, 2018Assignee: IMPEDIMED LIMITEDInventors: Bruce Herbert Cornish, Brian John Thomas, Jye Geoffrey Smith
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Patent number: 9724012Abstract: A method of determining an indication of the hydration status relating to a subject. The method includes determining a measured impedance value for at least one body segment, and then; for each body segment, using the measured impedance values to determine at least one indicator at least partially indicative of a level of extracellular fluid. Indicators can then be used to determine an indication of the hydration status.Type: GrantFiled: October 10, 2006Date of Patent: August 8, 2017Assignee: Impedimed LimitedInventor: Scott Chetham
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Patent number: 9615766Abstract: Apparatus for use in performing impedance measurements on a subject, the apparatus including a probe having a plurality of electrodes, the probe being configured to allow at least some of the electrodes to be in contact with at least part of the subject and a processing system for, determining at least one first impedance value, measured at a site using a first electrode configuration, determining at least one second impedance value, measured at the site using a second electrode configuration and determining an indicator indicative of the presence, absence or degree of an anomaly using the first and second impedance values.Type: GrantFiled: November 27, 2009Date of Patent: April 11, 2017Assignee: IMPEDIMED LIMITEDInventor: Richelle Leanne Gaw
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Patent number: 9615767Abstract: A method for use in analyzing impedance measurements on a subject is described. The method can include, in a processing system, determining at least one impedance value at each of a number of frequencies, each impedance value representing the impedance of a segment of the subject, determining a dispersion parameter value indicative of a dispersion of the impedance values and, determining an indicator based at least on part on the dispersion parameter value.Type: GrantFiled: October 21, 2010Date of Patent: April 11, 2017Assignee: IMPEDIMED LIMITEDInventors: Richelle Leanne Gaw, Brian John Thomas
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Publication number: 20170065200Abstract: An electrode assembly for use with a subject, the assembly including, a substrate including at least one moveable substrate portion; first and second conductive elements provided on the substrate, the first and second conductive elements being spaced apart, and being adapted to provide an electrical connection to the subject; and, first and second terminals, each terminal being electrically coupled to a respective conductive element, and at least part of each terminal being provided on the at least one moveable substrate portion, such that movement of the substrate portion allows at least part of the terminal to extend away from the substrate to thereby facilitate connection of the terminal to a respective connector.Type: ApplicationFiled: October 26, 2016Publication date: March 9, 2017Applicant: Impedimed LimitedInventors: Richelle Leanne Gaw, Todd Kirschen
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Publication number: 20170007152Abstract: A method for use in analysing impedance measurements performed on a subject, the method including, in a processing system determining at least one impedance value, representing the impedance of at least a segment of the subject, determining an indicator indicative of a subject parameter using the at least one impedance value and a reference and displaying a representation of the indicator.Type: ApplicationFiled: September 22, 2016Publication date: January 12, 2017Applicant: Impedimed LimitedInventors: Scott Chetham, Tim Essex, Brian William Ziegelaar
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Patent number: 9504406Abstract: 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.Type: GrantFiled: November 29, 2007Date of Patent: November 29, 2016Assignee: Impedimed LimitedInventors: Scott Chetham, Christopher Newton Daly, Ian John Bruinsma
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Patent number: 9392947Abstract: Impedance analysis can be used to measure calf muscle pump (CMP) function in a patient. This may be done by applying electrical signals via a first set of electrodes, and measuring the impedance via a second set of electrodes. The change in impedance as the patient undergoes calf extension or exercise may be measured, and the change in impedance may then be used to assess CMP function. The change in impedance may be used to determine an indicator indicative of the volume of blood ejected by the CMP.Type: GrantFiled: February 13, 2009Date of Patent: July 19, 2016Assignee: Impedimed LimitedInventor: Leigh Cordwin Ward
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Publication number: 20160089051Abstract: A method for use in performing impedance measurements on a subject. The method includes, in a processing system, determining at least one first impedance value, measured at a site using a first electrode configuration, determining at least one second impedance value, measured at the site using a second electrode configuration, and determining the presence, absence or degree of an anomaly using the first and second impedance values.Type: ApplicationFiled: December 8, 2015Publication date: March 31, 2016Applicant: Impedimed LimitedInventors: Bruce Herbert CORNISH, Brian John THOMAS, Jye Geoffrey SMITH
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Patent number: 9149235Abstract: A method of detecting tissue oedema in a subject. The method includes determining a measured impedance for first and second body segments. An index indicative of a ratio of the extra-cellular to intra-cellular fluid is then calculated for each body segment, with these being used to determine an index ratio based on the index for the first and second body segments. The index ration can in turn be used to determine the presence, absence or degree of tissue oedema, for example by comparing the index ratio to a reference or previously determined index ratios.Type: GrantFiled: December 20, 2013Date of Patent: October 6, 2015Assignee: Impedimed LimitedInventors: Leigh Ward, Brian Cornish
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Patent number: D745174Type: GrantFiled: June 5, 2013Date of Patent: December 8, 2015Assignee: Impedimed LimitedInventor: Richelle Leanne Gaw