05417717 is referenced by 246 patents and cites 11 patents.

An implantable monitor/stimulator is disclosed that monitors and assesses indices of cardiac function, including the strength and timing of cardiac contraction, then automatically executes a physician-selected mode of therapy. It accomplishes this by assessing impedance, electrocardiogram, and/or pressure measurements, then calculating various cardiac parameters. The results of these calculations may be stored within the device, telemetered to an external monitor or display and/or may be used by the physician to determine the mode of therapy to be chosen. If indicated, therapy is administered by the device itself or by telemetering control signals to various peripheral devices for the purpose of enhancing either contraction or relaxation of the heart. The cardiac parameters that are calculated all provide an assessment of level of cardiac function by monitoring changes in ventricular filling and ejection or by calculating isovolumic phase indices of heart contraction. Examples of such parameters are ejection fraction, cardiac output, stroke work, and/or various pressure-volume relationships. These parameters determine the mode of therapy that will be selected by a physician. Choices of therapy include several forms of pacing of cardiac or skeletal muscle, and telemetry to implanted or external units for drug infusion or for monitoring by a central data system.

Title
Implantable cardiac function monitor and stimulator for diagnosis and therapy delivery
Application Number
787052
Publication Number
5417717
Application Date
May 16, 1994
Publication Date
May 23, 1995
Inventor
Morton M Mower
Edina
MN, US
Bruce A Tockman
Minneapolis
MN, US
Rodney W Salo
Fridley
MN, US
Agent
Haugen and Nikolai
Assignee
Cardiac Pacemakers
MN, US
IPC
A61N 1/365
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