	US 12,343,130 B2
	Spacing of electrodes for bioimpedance measurements
Jenny Freeman, Weston, MA (US); Jordan Brayanov, Medford, MA (US); Mark H. Strong, Dover, MA (US); and Nicholas Aranow, Dedham, MA (US)
Assigned to Respiratory Motion, Inc., St. Louis, MO (US)
Filed by Respiratory Motion, Inc., Waltham, MA (US)
Filed on Jun. 7, 2018, as Appl. No. 16/002,635.
Application 16/002,635 is a continuation in part of application No. 14/021,939, filed on Sep. 9, 2013.
Claims priority of provisional application 62/516,295, filed on Jun. 7, 2017.
Claims priority of provisional application 61/808,509, filed on Apr. 4, 2013.
Claims priority of provisional application 61/698,289, filed on Sep. 7, 2012.
Claims priority of provisional application 61/698,257, filed on Sep. 7, 2012.
Prior Publication US 2018/0279903 A1, Oct. 4, 2018
Int. Cl. A61B 5/05 (2021.01); A61B 5/00 (2006.01); A61B 5/053 (2021.01); A61B 5/282 (2021.01); A61B 5/296 (2021.01); A61B 5/085 (2006.01); A61B 5/091 (2006.01)

CPC A61B 5/053 (2013.01) [A61B 5/0002 (2013.01); A61B 5/282 (2021.01); A61B 5/296 (2021.01); A61B 5/6823 (2013.01); A61B 5/6833 (2013.01); A61B 5/7221 (2013.01); A61B 5/0006 (2013.01); A61B 5/086 (2025.01); A61B 5/091 (2013.01); A61B 5/7203 (2013.01); A61B 2503/045 (2013.01); A61B 2560/0238 (2013.01); A61B 2560/0475 (2013.01); A61B 2562/0215 (2017.08); A61B 2562/04 (2013.01); A61B 2562/085 (2013.01); A61B 2562/14 (2013.01)]

36 Claims

1. A system for measuring bioimpedance signals, comprising:

an electrode padset selected from at least two different sized electrode padsets;

a microprocessor coupled to the electrode padset in communication with and adapted to receive bioimpedance signals from the electrode padset, and to measure the bioimpedance of a patient;

a data receiver coupled to the microprocessor; and

software executing on the microprocessor, wherein the software:

determines the size of the electrode padset based on data received by the microprocessor;

determines a known parasitic impedance based on the electrode padset that was selected; and

mitigates the known parasitic impedance of the electrode padset;

wherein the electrode padset comprises:

at least two thoracic electrode pads, each thoracic electrode pad having a pair of electrodes; and

an electrically conductive material coupling at least one thoracic electrode pad to at least one other thoracic electrode pad.

19. A method of obtaining a bioimpedance signal, comprising:

selecting an electrode padset from at least two different sized electrode padsets for use on a patient, wherein each sized electrode padset has a known parasitic impedance;

coupling the selected electrode padset to a microprocessor and the patient;

executing software on the microprocessor, wherein the software is adapted to remove the parasitic impedance of the selected electrode padset based on the selected electrode padset's geometry;

delivering a current to the patient via the selected electrode padset;

receiving the current from the patient via the selected electrode padset;

filtering out the parasitic impedance;

determining the impedance of the patient;

calculating at least one respiratory volume measurement of the patient; and

outputting the at least one respiratory volume measurement of the patient.