Patent ID: 8700133
Filing Date: 2014-04-15
Classification: A61M

Abstract:
1. An intravenous catheter for guiding tip placement into a peripheral vein, comprising: a flexible, tubular cannula for insertion into a peripheral vein; a sensor mounted on the cannula at a predetermined location thereon for sensing and then generating an output signal representative of a sensed biological material including blood, wherein the sensor is an acoustical transducer generating an amplitude echo signature signal when energized; a processor circuitry connected to the sensor output signal for receiving and then generating a display; and wherein the display provides a feedback to a medical personnel for correct catheter tip placement during transition into, placement within, and withdrawal from the peripheral vein of a patient body, wherein the feedback includes a proper insertion signal upon proper insertion of the cannula within the peripheral vein, wherein the feedback comprises a first signal during skin penetration, a second and different signal after skin penetration, and a third and further different signal upon the proper insertion of the cannula within the peripheral vein.