Patent ID: 11911973
Assignee: FRESENIUS KABI DEUTSCHLAND GMBH
Field: Other special machines (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 1:
2. Sealing device (1) to seal a medical tubing (2), comprising a receptacle (100) to receive said medical tubing (2), the receptacle (100) comprising an electrode arrangement for causing a welding action on the tubing (2), and
a control circuitry (11) comprising an adjustable capacitor (C1) and a bias source (111) configured to apply a DC bias voltage (V2) to said adjustable capacitor (C1) to adjust a capacitance value of the adjustable capacitor (C1), the control circuitry (11) being operatively connected to the electrode arrangement of the receptacle (100), the control circuitry (11) comprising a generator device (110) to supply an alternating electrical current to the electrode arrangement,
wherein the alternating electrical current and DC bias voltage are simultaneously applied to the adjustable capacitor to adjust the capacitance value of the adjustable capacitor.