Pump motor control with adaptive startup
AssigneeHeartWare, Inc.
InventorJohn RUDSER
Life of this patent
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Abstract
An apparatus for starting operation of a motor of an implantable blood pump including a memory storing one or more default parameters for at least one of controlling and monitoring the startup operation. A processor operatively coupled to the motor is included, the processor is configured to: commence the startup operation based on the one or more default parameters; detect an error during the startup operation; adjust at least one of the one or more default parameters in response to the detected error; store the at least one adjusted parameter in the memory; and commence subsequent startup operations based at least in part on the at least one adjusted parameter.
Claims25
An apparatus for starting operation of a motor of an implantable blood pump, comprising:
- a memory storing one or more default parameters for at least one of controlling and monitoring the startup operation;
- and
- a processor operatively coupled to the motor, the processor being configured to:
- commence the startup operation based on the one or more default parameters;
- detect an error during the startup operation;
- adjust at least one of the one or more default parameters in response to the detected error;
- store the at least one adjusted parameter in the memory;
- and
- commence subsequent startup operations based at least in part on the at least one adjusted parameter.
A method of adaptively adjusting operational parameters of a motor of an implanted medical device, comprising:
- commencing a startup operation based on one or more preset operational parameters;
- detecting an error during the startup operation;
- adjusting at least one of the one or more preset operational parameters in response to the detected error;
- and
- replacing at least one of the one or more preset operational parameters with the at least one adjusted parameter as a default parameter in the memory;
- and
- commencing subsequent startup operations based at least in part on the at least one adjusted parameter.
An apparatus for starting operation of a motor of an implantable blood pump, comprising:
- a memory storing one or more default parameters for controlling or monitoring the startup operation;
- and
- a processor operatively coupled to the motor, the processor being configured to:
- commence the startup operation based on the one or more default parameters, the one or more default parameters includes a value indicating a threshold number of errors,
- ramp a speed of the motor based on at least one of the one or more default parameters, and phase lock the motor based on at least one of the one or more default parameters;
- detect an error during the startup operation, the error being at least one at least one of a determined speed of the motor, current supplied to the motor, flow rate of blood through the pump, and pressure head exerted by the pump;
- adjust at least one of the one or more default parameters in response to the detected error;
- store the at least one adjusted parameter in the memory;
- commence subsequent startup operations based at least in part on the at least one adjusted parameter;
- cease operation of the motor in response to registering the threshold number of errors during consecutive startup operation attempts;
- and
- the memory being further configured to store parameter adjustment data indicating an association between at least one error type of the detected error and at least one associated parameter, the processor is further configured to identify at least one default parameter associated with the detected error based on the parameter adjustment data and to adjust the at least one default parameter in response to the detected error.
Dependencies are inferred from the claim text.