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AssigneeMedtronic MiniMed, Inc.
InventorsRonald J. Lebel, Varaz Shahmirian, Timothy J. Starkweather, Philip T. Weiss, John T. Armstrong, Robert C. Dennard, John D. Richert
Estimating the term…
An implanted medical device (e.g. infusion pump) and external device communicate with one another via telemetry wherein messages are transmitted under a robust communication protocol. The communication protocol gives enhanced assurance concerning the integrity of messages that impact medical operations of the implantable device. Messages are transmitted using a multipart format that includes a preamble, a frame sync, a telemetry ID, data, and a validation code. The data portion of the message includes an op-code that dictates various other elements that form part of the message. The data portion may also include additional elements such as sequence numbers, bolus numbers, and duplicate data elements. A telemetry ID for the transmitting device may be implicitly embedded in the message as part of the validation code that is sent with the message and that must be pre-known by the receiver to confirm the integrity of the received message.
A medical system, comprising:
The system of claim7 wherein data in the second portion has been encoded differently from the data in the first portion such that, even after derandomization, manipulation of the data in the first portion or in the second portion is performed prior to comparison.
A medical system, comprising:
A medical system, comprising:
The system of claim 27 wherein a first portion of the MD telemetry system is incorporated into the MD processor and a second portion of the MD telemetry system is external to the MD processor, or wherein a first portion of the CD telemetry system is incorporated into the CD processor and a second portion of the CD telemetry system is external to the CD processor.
The system of claim 27 wherein the medical device comprises an implantable infusion pump for selectively dispensing a drug.
The system of claim 27 wherein the medical device comprises an implantable sensor for sensing a selected state of the body.
The system of claim 32 wherein the sensor comprises a glucose sensor.
The system of claim 27 wherein the medical device comprises an implantable electrode for selectively stimulating a portion of the body of the patient.
The system of claim 27 wherein the character patterns are sequence numbers that are varied between first and second messages that are varied within a receiver when they are successfully received and varied within a transmitter when the transmitter receives confirmation that the message was successfully received.
The system of claim 27 wherein the character patterns are message numbers associated with messages that have responses sent from a receiver back to a transmitter when the message is successfully received by the receiver.
The system of claim 37 wherein the incrementing patterns can take on more than 2 values.
The system of claim 38 wherein the incrementing patterns can take on at least 128 values.
The system of claim 30 wherein the incrementing patterns are transmitted with selected messages that relate to the commands that cause or otherwise impact the delivery of boluses.
The system of claim 40 wherein the incrementing patterns can take on more than 2 values.
The system of claim 41 wherein the incrementing patterns can take on at least 128 values.
Dependencies are inferred from the claim text.