Pump motor control with adaptive startup
AssigneeHeartWare, Inc.
InventorJohn Rudser
Life of this patent
Estimating the term…
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 starting operation of a motor of an implantable blood pump, comprising:
- a memory storing one or more preprogrammed default parameters for at least one of controlling and 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 a speed of the motor based on at least one of the one or more preprogrammed default parameters, and maintain the speed of the motor for a given number of commutation cycles;
- detect an error during the startup operation, the error detected during the startup operation is indicative that the motor is operating as a result of the startup but at a rate at which the pump speed is ramped up is not normal;
- update at least one of the one or more preprogrammed default parameters to an 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, comprising:
- commencing a startup operation based on one or more preset operational parameters;
- detecting an error during the startup operation, the error detected during the startup operation is indicative that the motor is operating as a result of the startup but at a rate at which the pump speed is ramped up is not normal;
- updating at least one of the one or more preset operational parameters with an updated parameter different than one or more operation 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 in the memory;
- and
- commencing subsequent startup operations based at least in part on the at least one updated parameter.
Dependencies are inferred from the claim text.