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.
Claims18
An apparatus for startup operation of a motor of an implantable blood pump, the apparatus comprising:
- a memory storing one or more preprogrammed default parameters for at least one of controlling or monitoring the startup operation, the one or more preprogrammed default parameters including a speed of the motor;
- and
- a processor operatively coupled to the motor, the processor being configured to:
- commence the startup operation based on the one or more preprogrammed default parameters;
- ramp the speed of the motor based on at least one preprogrammed default parameter of the one or more preprogrammed default parameters;
- detect an error during the startup operation, the error detected during the startup operation being indicative that the motor is operating as a result of the startup operation but at a rate at which the speed of the motor is ramped is not normal;
- update at least one preprogrammed default parameter of the one or more preprogrammed default parameters to an at least one updated parameter different than the one or more preprogrammed default parameters in response to the detected error;
- store the at least one updated parameter in the memory;
- and
- commence subsequent startup operations based at least in part on the at least one updated parameter.
A method of adaptively adjusting operational parameters of a motor of an implanted medical device, the method comprising:
- commencing a startup operation based on one or more preset operational parameters, the one or more preset operational parameters including a speed of the motor;
- ramp the speed of the motor based on at least one of the one or more preset operational parameters;
- detecting an error during the startup operation, wherein the error detected during the startup operation indicates that the motor is operating as a result of the startup but at a rate at which the speed of the motor is ramped is not normal;
- updating at least one of the one or more preset operational parameters with an at least one updated parameter different than one or more preset operational parameter in response to the detected error;
- replacing at least one of the one or more preset operational parameters with the at least one updated parameter as a default parameter;
- and
- commencing subsequent startup operations based at least in part on the at least one updated parameter.
Dependencies are inferred from the claim text.