Control Circuitry Comprising an Adjustable Capacitor
AssigneeFresenius Kabi Deutschland GmbH
InventorsPhilipp Winter, Lars Michel, Michael Schaefer
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Abstract
A control circuitry (11) comprises an adjustable capacitor (C1), and a bias source (111) configured to apply a bias voltage (V2) to said adjustable capacitor (C1) to adjust a capacitance value of the adjustable capacitor (C1). Such a control circuitry may for example be part of a sealing device (1) to seal a medical tubing (2), the sealing device (1) comprising a receptacle (100) to receive said medical tubing (2), the receptacle (100) comprising an electrode arrangement for causing a heat action on the tubing (2).
Claims13
Control circuitry (11), comprising an adjustable capacitor (C1), characterized by a bias source (111) configured to apply a bias voltage (V2) to said adjustable capacitor (C1) to adjust a capacitance value of the adjustable capacitor (C1).
Method to operate a sealing device (1) to seal a medical tubing (2), comprising:
- receiving said medical tubing (2) in a receptacle (100), the receptacle (100) comprising an electrode arrangement for causing a welding action on the tubing (2), and
- supplying an electrical current to the electrode arrangement using a control circuitry (11) operatively connected to the electrode arrangement of the receptacle (100), the control circuitry (11) comprising an adjustable capacitor (C1) and a generator device (110),
- characterized by applying, using a bias source (111) of the control circuitry (11), a bias voltage (V2) to said capacitor (C1) to adjust a capacitance value of the capacitor (C1).
Dependencies are inferred from the claim text.