Cardiac Pacemakers, Inc.

Sylvia Quiles

Scott R Vanderlinde

Hui Li

Jeffrey E Stahmann

James Kalgren

Rene H Wentkowski

Kenneth Paul Hoyme

Joseph E Bange

Prashant Brijmohansing Rawat

Vineel Vallapureddy

Krishna Sridharan

David J Ternes

Jeffrey Allen Von Arx

Howard D Simms, Jr

Conrad L Sowder

Scott J Healy

Alan H Smythe

Allan Thomas Koshiol

Thomas J Harris

Mehdi Katoozi

Michael Sheehan Seeberger

Ken Cowan

Raymond Paul Kinnamon

Robert J Parkinson

Raymond P Kinnamon

A system and method for temporary programming of an implantable medical device. The system and method include a repeater uploading temporary programming and instructions to a temporary memory of the device and then instructing the device to operate according to the temporary instructions. If during a first time period, the device is not in continuous periodic communication with the repeater, the device automatically reverts to operation under the normal operating instructions. At the end of the first time period, the caregiver or the patient may decide to revert to the normal programming. During a second time period, the device operates according to the temporary programming unless the caregiver or the patient instructs the device to revert to the normal programming, or the device fails to receive a periodic continuation signal from the repeater. Adverse health effects to the patient may also trigger the device to revert to the normal programming during either the first or second time period.

System and method for temporary programming for implanted medical devices

A far-field radio frequency (RF) telemetry system for communicating with an implantable medical device includes a diversity antenna system. Multi-frame messages each including multiple outgoing data frames are transmitted to the implantable medical device. In response, the implantable medical device transmits response data frames each following one or more of the outgoing data frames, according to a predetermined communication protocol. An antenna control circuit selects an antenna of the diversity antenna system for transmitting the outgoing data frames and/or receiving the response data frames based on the quality of signal reception associated with the response data frames.

Method and apparatus for operating a diversity antenna system for communicating with implantable medical device

This document discloses, among other things, a telemetry system that controls access to assets of an implantable device as a function of the manner of initiating the communication session or an access code. A tiered hierarchy of assets are associated with corresponding levels of access. A tiered array of security mechanisms are associated with the hierarchy of assets.

Secure remote access for an implantable medical device

Power supplied to a particular telemetry system of an implantable device having multiple telemetry systems is managed by a state machine. Power to a transceiver of a device is terminated if the particular telemetry system remains dormant or inactive for a programmable period of time and power to the transceiver is turned on if a particular signal is received by the implantable device.

Automatic power control for a radio frequency transceiver of an implantable device

A far-field radio frequency (RF) telemetry system for communicating with an implantable medical device includes a diversity antenna system. Multi-frame messages each including multiple outgoing data frames are transmitted to the implantable medical device. In response, the implantable medical device transmits response data frames each following one or more of the outgoing data frames, according to a predetermined communication protocol. An antenna control circuit selects an antenna of the diversity antenna system for transmitting the outgoing data frames and/or receiving the response data frames based the quality of signal reception associated with the response data frames.

The selection of one communication channel from a plurality of available channels is determined by a state machine. In an automatic selection mode, a first telemetry system has priority over other telemetry systems. A communication session is in progress based on session initiation and termination triggers. An override function allows manual selection of a telemetry system.

Telemetry switchover state machine with firmware priority control

Integrity of a wirelessly telemetered message communicated between an implantable medical device and an external programmer is authenticated by encoding the message. The message is encrypted based on a random number or time stamp and a secret key. The message is authenticated by encryption and decryption or by executing a hash function.

Cryptographic authentication for telemetry with an implantable medical device

In a patient management system, a remote monitoring device interrogates an implantable device on an intermittent basis over a wireless telemetry link, with interrogations being performed either according to a programmed schedule or upon receiving a command to do so via the user interface or the network interface. Described is a system and method for optimizing, limiting, and/or monitoring an implantable device's telemetry usage in order to avoid premature battery depletion and/or raise an alert if excessive battery depletion is beginning to occur.

Power management for implantable medical device during RF communications

A system and method for avoiding short-interval paces during pacing mode transitions. The method may be particularly useful in switching to or from a biventricular pacing mode.

Mode transition timing for synchronized pacing

A system and method for temporary programming of an implantable medical device. The system and method include a repeater uploading temporary programming and instructions to a temporary memory of the device and then instructing the device to operate according to the temporary instructions. If during a first time period, the device is not in continuous periodic communication with the repeater, the device automatically reverts to operation under the normal operating instructions. At the end of the first time period, the caregiver or the patient may decide to revert to the normal programming. During a second time period, the device operates according to the temporary programming unless the caregiver or the patient instructs the device to revert to the normal programming, or the device fails to receive a periodic continuation signal from the repeater. Adverse health affects to the patient may also trigger the device to revert to the normal programming during either the first or second time period.

Communications with an implantable device are conducted using a physical telemetry link dynamically selected from multiple physical telemetry links based on selected criteria including, for example, bandwidth, security, data throughput, channel availability and reliability.

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Edina, MN, United States of America

Sylvia Quiles