Device for Welding a Flexible Medical Tube

Abstract

A device for welding a flexible tube by radio frequency includes: a clamping member having a welding head formed by a first electrode and a second electrode, a power source configured to supply electrical power to the welding device, and a welding member having a radiofrequency generator and a radiofrequency power converter, the first and second electrodes, the power source, the radio-frequency generator and the power converter forming between them an electrical circuit having an impedance, the power converter including at least two inductors connected in series with the first and second electrode of the welding member and an electrical current flow control element configured to cut off the flow of the electrical current in one of the inductors so as to maintain the impedance of the electrical circuit constant during welding.

Dependencies are inferred from the claim text.