Abstract: A charging contact assembly can include a brush for configured to translate in a first direction generally perpendicular to a second direction of travel of the charging contact assembly. The brush can include a first contact surface for contacting the conducting surface, and a second contact surface parallel to the first direction of translation of the brush and perpendicular to the second direction of travel of the charging contact assembly. The charging contact assembly can also include a connector having a connection for connecting to a source of electrical energy, and a connector contact surface electrically coupled with the connection and arranged parallel to the second contact surface of the brush to contact the second contact surface of the brush. The charging contact assembly can further include a biasing mechanism for biasing the connector contact surface of the connector into contact with the second contact surface of the brush.

Abstract: The present disclosure relates to a congestive heart failure biomarker detector. The congestive heart failure biomarker detector includes a gas sampling unit adapted to collect a gas sample for evaluating congestive heart failure. The congestive heart failure biomarker detector includes a chemical isolation unit adapted to selectively isolate a biomarker of interest from the gas sample to a predetermined level of accuracy. The congestive heart failure biomarker detector includes a processing unit configured to determine a level of the isolated biomarker of interest. The congestive heart failure biomarker detector includes a display unit configure to display the determined level of the isolated biomarker of interest.