#$%^&*AU2014253510A120141113.pdf#####SENSOR WTH ELECTRICAL CONTACT PROTECTION FOR USE IN FLUID COLLECTION CANISTER AND NEGATIVE PRESSURE WOUND THERAPY SYSTEMS INCLUDING SAME ABSTRACT A portable negative pressure wound therapy system (200), comprising a control unit (246) a vacuum source (40) disposed in the control unit (246) a collection canister (242) comprising a chamber (335) configured to collect wound fluids, an inlet port (334) configured to couple to an inlet conduit (372) to introduce the wound fluids into the chamber (335), and a suction port (374) configured to communicate with the chamber (375) and the vacuum source (40) a sensor (320) configured to detect a condition associated with the collection canister (242), the sensor (320) comprising a first electrode (325A) including a first portion (322) and a second portion (321), wherein the first portion (322) of the first electrode (325A) is supported by a surface of the collection canister (242), and the second portion (321) of the first electrode (325A) extends into the chamber (335) a second electrode (325B) including a first portion (324) and a second portion (323), wherein the first portion (324) of the second electrode (325B) is supported by a surface of the collection canister (242), and the second portion (323) of the second electrode (325B) extends into the chamber (335) a circuit (328) configured to detect an electrical property associated with the first and second electrodes (325A, 325B) and an inner wall (880) disposed within the chamber (335), wherein the second portions (323, 321) of the first and second electrodes (325A, 325B) are disposed within an area between a top portion (336) of the collection canister (242) and the inner wall (880).
