Abstract: A monitoring device includes an input port attachable for fluid communication with a catheter, the catheter for insertion in a body of a user, for receiving fluid from the body of the user, an output port, generally parallel to the input port, in fluid communication with a fluid reservoir, a fluid channel defining fluid communication between the input port and the output port, and a biosensor for continuously measuring bio-signal data of the fluid in the fluid channel, the biosensor including an electrode pair. The biosensor is in communication with a computing device for determining a condition of the user based at least in part on the bio-signal data.

Abstract: Detecting postoperative complications in a patient uses a substrate made of biocompatible or biodegradable material. An adhesive layer adheres the substrate to patient tissue, surgical tool, or medical device. A biosensor at the substrate detects or measures an analyte in the patient's body. The biosensor may be on the surface of the substrate or within a microchannel in the substrate. A separation or isolation structure may be provided to separate or isolate the analyte from other analytes prior to the biosensor. A microcontroller is disposed on the substrate and connected to the biosensor and to a wireless communications interface also disposed on the substrate. The microcontroller measures a signal from the biosensor and may perform an analysis on the measured signal. Measured data or data resulting from the analysis is transmitted through the wireless communications interface to a transdermal patch or other remote device for storage and display.

Abstract: Detecting postoperative complications in a patient uses a substrate made of biocompatible or biodegradable material. An adhesive layer adheres the substrate to patient tissue, surgical tool, or medical device. A biosensor at the substrate detects or measures an analyte in the patient's body. The biosensor may be on the surface of the substrate or within a microchannel in the substrate. A separation or isolation structure may be provided to separate or isolate the analyte from other analytes prior to the biosensor. A microcontroller is disposed on the substrate and connected to the biosensor and to a wireless communications interface also disposed on the substrate. The microcontroller measures a signal from the biosensor and may perform an analysis on the measured signal. Measured data or data resulting from the analysis is transmitted through the wireless communications interface to a transdermal patch or other remote device for storage and display.