US Patent 6912416 Detecting or preventing tissue damage

Systems and methods are described for, among other things, detecting tissue injury and for evaluating the integrity of an anatomic structure. A system may include a first sensor disposable through a first space on a first side of the anatomic structure, a second sensor disposed in a second space on a second side of the anatomic structure, and a processor coupled to the first sensor and to the second sensor, the processor including a meter, the meter responsive to a communication between the first sensor and the second sensor, wherein an invasion of the anatomic structure by the first sensor alters the communication between the first sensor and the second sensor.