VAVD regulator contamination and condensation control
AssigneeLivaNova Deutschland GmbH
InventorOlivier Wolfgramm
Life of this patent
Estimating the term…
Abstract
Embodiments include a vacuum assisted venous drainage (VAVD) system, including a regulator valve assembly configured to facilitate application of vacuum to a reservoir; a control unit configured to control the regulator valve assembly to facilitate controlling application of the vacuum; at least one pressure sensor coupled to the reservoir and configured to obtain pressure measurements of pressure in the reservoir; a heating element configured to heat the regulator valve assembly to a target temperature; and at least one temperature sensor configured to determine a temperature of the regulator valve assembly.
Claims19
A method, performed by a controller for controlling vacuum in a reservoir to facilitate vacuum assisted venous drainage, the method comprising:
- performing a thermal disinfection cycle by heating a valve assembly to a target temperature;
- performing an operational task;
- and
- maintaining, during performance of at least a portion of the operational task, a temperature of the valve assembly at the target temperature.
A method of controlling a vacuum assisted venous drainage system, the method comprising:
- initiating a thermal disinfection cycle of a valve assembly using a controller, which includes heating the valve assembly to a target temperature;
- and
- maintaining a temperature of the valve assembly at the target temperature for a specified duration while performing an operational task with the vacuum assisted venous drainage system, wherein the operational task includes applying a vacuum to a blood reservoir of the vacuum assisted venous drainage system.
A method of controlling a vacuum assisted venous drainage system, the method comprising:
- initiating a thermal disinfection cycle of a valve assembly of a vacuum regulator using a controller during a start-up procedure of the vacuum assisted venous drainage system, wherein initiating the thermal disinfection cycle includes heating the valve assembly to a target temperature for a specified duration;
- and
- applying a vacuum to the vacuum regulator while maintaining the target temperature.
Dependencies are inferred from the claim text.