Methods, implantable medical devices, and systems to continue implementing a special mode of operation after experiencing a device reset

An implantable medical system that operates during a condition that may trigger a device reset, comprising:

• an implantable medical lead having a proximal contact and a distal electrode;
• and
• an implantable medical device, comprising:
• a pulse generator;
• an electrical connector that is electrically coupled to the pulse generator, the proximal contact being electrically coupled to the electrical connector;
• an operating memory;
• a non-volatile memory;
• a telemetry communication circuit;
• a processing device in communication with the pulse generator, the operating memory, the non-volatile memory, and the telemetry communication circuit, the processing device being configured to:
• receive from the telemetry communication circuit mode programming that defines a special mode of electrical stimulation to utilize during the condition and receive parameter programming that specifies stimulation parameters to utilize for the special mode of electrical stimulation;
• store the mode programming and the parameter programming in the non-volatile memory;
• store a value in the non-volatile memory indicating whether the special mode is active;
• upon experiencing a device reset, read the value that indicates whether the special mode is active;
• load the mode programming and parameter programming from the non-volatile memory to the operating memory;
• and in response to reading the value when the value indicates that the special mode is active, implement the special mode defined by the mode programming from the operating memory by controlling operation of the pulse generator.

A method of operating an implantable medical device during a condition that may trigger a device reset, comprising:

• receiving programming at the device that relates to a special mode of operation to utilize during the condition;
• storing the programming in a non-volatile memory;
• storing a value in the non-volatile memory indicating whether the special mode is active;
• upon experiencing a device reset that terminates a mode of operation occurring prior to the device reset, reading the value from the non-volatile memory that indicates whether the special mode is active;
• loading the programming from the non-volatile memory to an operating memory;
• and
• in response to reading the value when the value indicates that the special mode is active, implementing the MRI mode from the operating memory prior to implementing any other stimulation mode once the device reset has occurred.

A method of operating an implantable medical device during a condition that may trigger a device reset, comprising:

• receiving programming at the device that relates to a special mode of operation to utilize during the condition;
• storing the programming in a non-volatile memory;
• storing a value in the non-volatile memory indicating whether the special mode is active;
• implementing the special mode from the operating memory prior to a device reset;
• upon experiencing the device reset, detecting whether the operating memory contains valid programming of a mode;
• when it is detected that the operating memory does not contain the valid programming of the mode then reading the value that indicates whether the special mode is active, loading the programming from the non-volatile memory to an operating memory, and when the value indicates that the special mode is active implementing the special mode from the operating memory;
• and
• when it is detected that the operating memory does contain the programming of the mode, then not loading the programming from the non-volatile memory.

A method of operating an implantable medical device during a condition that may trigger a device reset, comprising:

• receiving programming in an operating memory at the device that relates to a special mode of operation to utilize during the condition, the programming including a value that indicates whether the special mode is active;
• copying the programming from the operating memory to a non-volatile memory;
• implementing the special mode from the operating memory prior to a device reset when the value indicates that the special mode is active;
• upon experiencing the device reset, reading the value that indicates whether the special mode is active;
• copying the programming from the non-volatile memory to the operating memory;
• and
• when the value indicates that the special mode is active, implementing the special mode from the programming in the operating memory;
• upon termination of the special mode, changing the value in the operating memory that indicates whether the special mode is active to indicate that the special mode is not active;
• and
• after changing the value, copying the programming that includes the value from the operating memory to the non-volatile memory.