Abstract: An ostomy appliance system includes an ostomy appliance having a stoma opening and a first electrical interface, and at least one thermal sensor configured to detect at least one thermal property, such as temperature, at the ostomy appliance, the at least one temperature sensor connected to the first electrical interface with electrical circuitry. A wearable device may be removably connected to the ostomy appliance and operably connected to the at least one thermal sensor. The wearable device includes a housing, a second electrical interface configured for electrical connection to the first electrical interface, a power supply and a controller operably connected to the power supply. The controller is configured to determine a condition of the ostomy appliance based on the at least one thermal property detected at the at least one thermal sensor. The wearable device may also include a wireless transceiver configured to communicate with a personal communication device.

Abstract: A self-orienting perforating gun includes an outer housing having a throughbore, a charge carrier positioned in the throughbore of the outer housing, a hub secured directly or indirectly to the outer housing, a bearing secured to each carrier end of the charge carrier wherein the bearing overlies the hub to provide a rotatable relationship between the hub and the charge carrier about a rotational axis within the outer housing, and an eccentric weight coupled to the charge carrier applying an off-axis orienting force to the charge carrier for urging the charge carrier to rotate about the rotational axis toward a predefined orientation relative to the direction of gravity.