Central venous catheter assembly for hemodynamic monitoring

摘要

The catheter assembly includes an elongated catheter body (100) including an intravascular catheter portion (101) adapted to be inserted, distalend (102) first, in a patient's vena cava superior. The catheter body (10 0 ) comprises 1umina (103, 104, 105, 106). An electrically heatable heating coil (113) covered by a heat conducting surface layer (114) extends in several windings around the catheter body (100) close to the distalend (102). The heating coil is adapted to emit heat pulses in the immediate proximity of the distalend (102), thus transmitting energy from an electrical power source to the patient's blood stream. The therm alenergy transferred to the blood by emitting each heat pulse represents a respective input signal for modified transpulmonary thermodilution measurements in the context of hemodynamic monitoring and can be determined by considering the temperature of the heating coil (113) measured by a temperature sensor (117) being in thermal contact with the heating coil (113). <IMAGE>