Survivalink Corporation

Galvani, Ltd.

Cardiac Pacemakers, Inc.

Angeion Corporation

Medilase, Inc.

Byron L Gilman

Kenneth F Olson

Mark W Kroll

James E Brewer

Mark William Kroll

Karl J Kroll

Katherine H Anderson

David W Mayer

Susan M Walgren

R Eric Bosler

June M Berglund

Leonid Shturman

Gary B Stendahl

Richard H Comben

James W Luther

Thomas M Reiter

Apparatus and method for treating an arrhythmia in a patient using an electrotherapy device such as a subcutaneous pacing device. The device applies a series of electrotherapy pulses in response to the presence of the arrhythmia. Various provisions are disclosed for mitigating pain or discomfort as a result of the electrotherapy pulses.

Arrhythmia electrotherapy device and method with provisions for mitigating patient discomfort

Arrhythmia electrotheraphy device and method with provisions for mitigating patient discomfort

Automated treatment of arrhythmia utilizing an electrotherapy device. Time-coordinated applications of medium-voltage therapy (MVT) followed by high-voltage therapy (HVT) include a first MVT waveform to a first target region and a second MVT waveform to a second target region, such that the HVT is synchronized relative to a first compression cycle corresponding to activation of the first target region, and to a second compression cycle corresponding to activation of the second target region resulting from the administration of the MVT.

Coordinated medium voltage therapy for improving effectiveness of defibrillation therapy

Apparatus and method for treating an arrhythmia in a patient using an electrotherapy device. The device applies a series of electrotherapy pulses in response to the presence of the arrhythmia. In one aspect, indicia of movement by the patient is sensed, and an inference is made whether the movement is an evoked response to the administration of the electrotherapy pulses. Application of subsequent electrotherapy pulses is adjusted in response to an inference of the evoked response constituting discomfort of the patient.

Arrhythmia electrotherapy device and method with provisions for inferring patient discomfort from evoked response

Aspects of the invention are directed to advanced monitoring and control of medium voltage therapy (MVT) in implantable and external devices. Apparatus and methods are disclosed that facilitate dynamic adjustment of MVT parameter values in response to new and changing circumstances such as the patient's condition before, during, and after administration of MVT. Administration of MVT is automatically and dynamically adjusted to achieve specific treatment or life-support objectives, such as prolongation of the body's ability to endure and respond to MVT, specifically addressing the type of arrhythmia or other pathologic state of the patient with targeted treatment, a tiered-intensity MVT treatment strategy, and supporting patients in non life-critical conditions where the heart may nevertheless benefit from a certain level of assistance.

Medium voltage therapy applied as a test of a physiologic state

Method for coordinating medium voltage therapy for improving effectiveness of defibrillation therapy

Adaptive medium voltage therapy for cardiac arrhythmias

The present invention discloses a method and device in which an external defibrillator is integrated with an algorithm implemented in a programmable microprocessor which controls and manages the formation of defibrillation waveforms. The waveforms are dynamically adjusted and created to be consistent with a myocardial cell response waveform. Dynamic tilt calculations based on time slices and corresponding fit functions based on best-fit models are used to generate the waveforms. The waveforms include a first and a second phase and are formed with minimal delay therebetween.

Continual waveform shape reforming method and apparatus for transchest resistance dynamics

An automatic external defibrillator (AED) includes a device for scaling the stored energy communicated to the patient responsive to a known patient weight. An electrode set, for use with an automatic external defibrillator (AED), the AED includes a plurality of electrodes for making electrical contact with a skin surface of a patient. Each electrode of the plurality of electrodes is electrically connectable to a electrical connector for communicating a stored energy to a patient. The electrodes system further includes a device for scaling the stored energy communicated to the patient responsive to a known patient weight. A method of defibrillating the heart of a human patient using an AED includes the steps of:

Defibrillation system for pediatric patients

Defibrillator electrodes having an identification element and a circuit which indicates to an AED the weight range of the patient being rescued. When the AED detects the presence of pediatric electrodes, it may select a different set of voice prompts that are specifically suited to a pediatric patient and/or it may select a pediatric dosage of electricity for the therapeutic shock.

Circuit detectable pediatric defibrillation electrodes

A defibrillator battery pack comprises a housing having a first set of battery cells having an upper set and a lower set of cells and a second set of battery cells connected in parallel with one of the upper or the lower sets of the first set of battery cells. The first set of battery cells is used for charging a capacitor bank of a defibrillator. The second set of battery cells cannot be used for charging and is only used for developing a nominal 5 volts to drive a microprocessor and other circuitry components of an electrical control system of the defibrillator. This arrangement increases the life of the battery pack in the lower voltage range, which is advantageous for operating the microprocessor. This arrangement also maintains the intelligence of the electrical control system because the battery cells supplying power to the microprocessor will always fail after, and not before, failure of the battery cells supplying power for charging the capacitor bank.

Defibrillator battery with dual cell stack configuration

A fail-safe safety circuit for a portable automated external defibrillator allows earlier charging of capacitors. In turn, the earlier charging of the capacitors allows quicker release of a defibrillation shock than prior art method of automatically detecting the appropriateness of administering a defibrillation shock and subsequently preparing the shock.

Growing community of inventors

Plymouth, MN, United States of America

Byron L Gilman