Implantable Medical Device Telemetry Processor

• US 20060287694A1
• Filed: 08/10/2006
• Published: 12/21/2006
• Est. Priority Date: 06/19/2000
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Bakx, Martinus AGM, Almendinger, Allen Dale
• Granted Patent: US 7,610,099 B2
• Time in Patent Office: Days
• US Class Current: 607/60
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61M 2205/3523 using telemetric means
• CPC Class Codes: A61N 1/3727 characterised by the modulation technique
• CPC Class Codes: H04R 2225/67 Implantable hearing aids or parts thereof not covered by H04R25/606
• CPC Class Codes: Y10S 128/903 Radio telemetry

Abstract

An implantable medical device with a main processor also has a telemetry processor to perform some telemetry processing functions resulting under some circumstances in reducing demands on the main processor, conserving energy, increasing telemetry processing speed, and many other advantages. A wide variety of implantable medical devices can be configured with a telemetry processor including neuro stimulators, pacemakers, defibrillators, drug delivery pumps, diagnostic recorders, and cochlear implants. The telemetry processor includes control logic, a data decoder, a receive buffer, a data encoder, and a transmit buffer. Methods of receiving messages and transmitting messages with a telemetry processor are also disclosed.

Claims

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51. A method of processing transmitted telemetry signals in an implantable medical device, comprising:

selecting the message type to be transmitted with control logic;

adding source and destination address information with an uplink frame generator;

adding status information with control logic;

encoding the transmit message parallel accessible words into a transmit message serial data bits; and

transferring the message to a modulator for transmission of the message by telemetry.

52. The method as in claim 51, further comprising generating message validity code containing the number of transmit data bits and the order of the transmit data bits with a cyclic redundancy check generator.

53. The method as in claim 51, further comprising notifying the application program that the message has been transmitted.

54. The method as in claim 51, further comprising powering down a telemetry processor after transferring the message to a modulator.

55. The method as in claim 51, further comprising sending a status message from a main processor to the data encoder.

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