Heating device for perfusion fluid, channel and heating assembly

Abstract

The invention relates to a heating device (100) for heating a fluid used in a medical procedure, comprising: a holder (110) arranged for receiving a channel (10) comprising a channel wall (11) arranged for conducting the fluid; and an electrical circuit (120) comprising: a first conductive surface (135), arranged to the holder for in use annularly surrounding the channel and together with the channel wall and the fluid forming a first capacitor (130) contributing to the capacitance of the electrical circuit, and for generating a first electrical field in the channel wall for introducing a first capacitively coupled current in the fluid; a second conductive surface (155), arranged to the holder for in use annularly surrounding the channel and together with the channel wall and the fluid forming a second capacitor (150) contributing to the capacitance of the electrical circuit, and for generating a second electrical field in the channel wall for introducing a second capacitively coupled current in the fluid; and an inductor (140) contributing to the inductance of the electrical circuit, and arranged to the holder for generating a magnetic field for introducing an inductively coupled current in the fluid; wherein the electrical circuit further comprises a connector (125, 125′) electrically coupled to the first conductive surface, the second conductive surface and the inductor, and couplable to a power source providing a quasi-static AC power to the electrical circuit at an operating frequency.

Dependencies are inferred from the claim text.