Ambulatory medical apparatus and method having telemetry modifiable control software

A medical system, comprising:

• a) an ambulatory medical device (MD) comprising MD electronic control circuitry that further comprises at least one MD telemetry system and at least one MD processor that controls, at least in part, operation of the MD telemetry system and operation of the medical device, wherein the medical device is configured to provide a treatment to a body of a patient or to monitor a selected state of the body;
• and
• b) a communication device (CD) comprising CD electronic control circuitry that further comprises at least one CD telemetry system and at least one CD processor that controls, at least in part, operation of the CD telemetry system and operation of the communication device, wherein the CD telemetry system sends messages to or receives messages from the MD telemetry system,
• wherein the medical device comprises an MD memory for holding an MD program and wherein the MD processor controls operation of the medical device, at least in part, according to the program held in the MD memory, and
• wherein a CD memory holds an MD program that may be downloaded to the medical device and then used to control, at least in part, the operation of medical device.

A medical system, comprising:

• a) an ambulatory medical device (MD) comprising MD electronic control circuitry that further comprises at least one MD telemetry system and at least one MD processor that controls, at least in part, operation of the MD telemetry system and operation of the medical device, wherein the medical device is configured to provide a treatment to a body of a patient or to monitor a selected state of the body;
• and
• b) a communication device (CD) comprising CD electronic control circuitry that further comprises at least one CD telemetry system and at least one CD processor that controls, at least in part, operation of the CD telemetry system and operation of the communication device, wherein the CD telemetry system sends messages to or receives messages from the MD telemetry system,
• wherein the MD processor controls, at least in part, operation of the medical device according to a program held in the MD memory,
• wherein a CD memory holds an MD program that may be downloaded to the medical device and then used to control, at least in part, the operation of medical device, and
• wherein at least a portion of the messages transferable to the medical device include patient definable parameters that can be used on a regular basis to modify the treatment or monitoring performed by the medical device.