Medtronic, Inc.

Karen A Stone

Vasant Padmanabhan

Kevin T Ousdigian

Walter H Olson

James David Webb

Gary L Berg

Richard M Powell

Denise Dirnberger

Paul Blowers

Michael R Tollinger

Pamela Jamar

A monitoring device for implant in a patient's body. The device is provided with a physiologic sensor generating output signals, which signals are stored as numerical values. The device defines first monitoring periods limited to time periods during successive nights during which the patient is likely to be asleep, stores the numerical values generated during the first monitoring periods in a memory and calculates values reflecting general levels of the numerical values during the first monitoring periods. The device may also or alternatively define second monitoring periods limited to time periods during successive daytime and store numerical values generated during the second monitoring periods. The physiologic sensor may be an electrogram amplifier or other sensor indicative of metabolic demand for oxygenated blood, such as an activity sensor. The calculated values reflecting general levels of the numerical values generated during the monitoring periods may be average values, such as mean values or over-all total values, depending upon the sensor employed.

Method and apparatus for monitoring heart rate

A graphical user interface is provided controllably displaying information retrieved from an implantable device, such as a pacemaker. The graphical user interface is comprised of a first and second window. The first window is adapted to display data identifying a plurality of episodes recorded by the implantable device, wherein the data is comprised of a plurality of fields. One of the fields may be used to identify a type of episode, such as ventricular tachycardia (VT), atrial and ventricular tachycardia (A&V), atrial fibrillation (AF), atrial flutter (Afl), atrial tachycardia (AT), and premature atrial contraction (PAC). The second window is adapted to display data types, such as VT, A&V, AF, Afl, AT, and PAC, that may be present in the plurality of fields, wherein at least one of the data types may be selected to filter the episodes displayed in the first window and display those episodes having the selected data types.

Method and apparatus for displaying information retrieved from an implanted medical device

A system including an implantable medical device and an associated external device, in which the implantable device is adapted to monitor a physiologic parameter and includes a telemetry system for transmitting information to and receiving information from the external device, including information regarding the measured physiological parameter and in which wherein the external device includes a telemetry system for receiving information from the implanted device and for transmitting information to the implanted device and is provided with a mechanism for receiving information indicative of occurrences of significant therapeutic events and is further provided with a display system which combines information received from the implantable device related to the monitored physiologic parameter with the information of therapeutic significance and for displays the combined information in a time-scaled display in which the measured physiologic parameter is displayed along a common time scale with indications of occurrences of the significant therapy related events. The implantable device may also include a mechanism for delivering a therapy; and the mechanism in the external device for receiving information indicative of occurrences of significant therapeutic events may receive information regarding changes in the therapy delivered by the implantable device. The mechanism in the external device for receiving information indicative of occurrences of significant therapeutic events may also or in addition receive information indicative of changes in the therapy delivered by a physician, e.g. changes in a drug therapy.

Method and apparatus for monitoring physiologic parameters conjunction with a treatment

An implantable medical device determines activity levels over a set of time periods, preferably on the order of seconds, minutes and hours and a display is enabled for days or weeks at recorded activity levels over a range of dates. This enables physical review of patient functional status. Additional physiologic data can be recorded along with the activity data, and this too may be reported out from the implanted device to a medical communications system for alarm purposes, filtrating drugs or other monitoring tasks.

Medical for tracking patient functional status

An implantable medical device determines activity levels over a set of time periods, preferably on the order of seconds, minutes and hours and a display is enabled for days or weeks at recorded activity levels over a range of dates. This enables physician review of patient functional status. Additional physiologic data can be recorded along with the activity data, and this too may be reported out from the implanted device to a medical communications system for alarm purposes, titrating drugs or other monitoring tasks.

Implantable medical device for tracking patient functional status

A method and apparatus for optimizing the performance of a rate-responsive cardiac pacemaker. A pacemaker is provided which is capable of obtaining and storing information about a patient's cardiac function and about a pacemaker's operation during a brief exercise interval. The data collected includes information about the number of cardiac events during each two-second interval of the exercise, as well as the percentage of paced events during each two-second interval. Data reflecting the output of the pacemaker's activity sensor output is also collected for each two second interval of the test. In addition, AV interval data for each cardiac cycle during the test is collected, this data being distinguished according to whether it reflects atrial-pace-to-ventricular-sense or atrial-sense-to-ventricular-sense AV intervals. The disclosed pacemaker is operable in conjunction with an external programming/processing unit, which receives the stored data after the exercise test is concluded. The data is processed and presented on the programmer screen in a manner which enables the clinician to readily assimilate it and observe the effects of hypothetical changes in rate-response programming in the pacemaker. Additionally, the clinician is able to observe the programmed AV rate adaption profiles in conjunction with the patient's actual AV performance, and compare this data with an AV profile from a typical healthy heart.

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White Bear Lake, MN, United States of America

Karen A Stone