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Zoll Circulation, Incorporated

Zoll Medical Corporation

Norman Alan Paradis

Gary A Freeman

Henry R Halperin

Stuart B Trembly

David Barash

The invention disclosed here relates in general to the field of medical devices. In particular, to devices and methods for improving the clinical outcome of patients suffering from cardiac dysrhythmias without cardiac arrest. This method and/or device integrates mechanical, pneumatic, acoustic and/or electrophysiologic capabilities with electrical countershock or pacing capabilities such that the probability of successful cardioversion or pacing is increased. The sequence, forces, and electrical properties of the subsystems can be computer controlled and adjusted in response to biomarker inputs.

Multimodal device and method to increase the efficacy of transthoracic cardioversion or cardiac pacing in patients with perfusing rhythms

An automated resuscitation system is provided, which can improve the outcome of patients suffering ventricular fibrillation or the ventricular tachycardia variants of cardiac arrest. This outcome can be achieved by a device that integrates automatic mechanical or pneumatic capability with electrical countershock capability such that the probability of defibrillation or cardioversion with return of spontaneous circulation is increased.

Automated resuscitation system integrating hemodynamic and defibrillatory capabilities

Systems, methods and devices for utilizing heat transfer parameters or energy expenditure of devices providing controlled hypothermia, normothermia or hyperthermia to detect changes, or the absence of changes, a patient's endogenous set-point temperature; which is not available during exogenously induced targeted temperature management. A particular embodiment would allow detection of fever in patients undergoing targeted temperature managed.

Method and system to detect changes in a patient's endogenous temperature set-point during externally induced targeted temperature management

A device for treating chest wall injuries, including rib fractures, flail chest injuries or surgical incisions is described herein. The device includes a localized airtight compartment external to the chest wall and fully covering the area of injury, and is capable of varying the pressure within the compartment, and providing dynamic real-time counter forces that act reciprocal to the intrathoracic pressure changes that occur during ventilation. In a preferred embodiment, the device has the capability of sensing the patient's chest wall motion created by ventilation, and includes a pressure control component capable of varying the pressure within the airtight compartment such that it opposes pressure changes within the chest. The apparatus would be particularly useful in preventing the paradoxical movement of flail chest injuries. The device would also lessen pain experienced by patients with thoracic injuries such as rib fractures and post operative suffering.

System for dynamically stabilizing the chest wall after injury, fracture, or operative procedures

The present invention is a method for improving hemodynamics and clinical outcome of patients suffering cardiac arrest and other low-flow states by combination of circumferential constriction and anteroposterior compression decompression of the chest cardiopulmonary resuscitation. Anteroposterior compression decompression may be provided by a piston mechanism attached to a gantry above the patient. Circumferential constriction may be achieved by inflation of pneumatic bladders or shortening of a band. The on-off sequence and relative force of circumferential constriction and anteroposterior compression decompression may be adjusted so as to improve efficacy.

Devices and methods for active decompression of the chest during circumferential constriction cardiopulmonary resuscitation

A system and method for mechanical CPR can include a device for providing compressive force to various locations on a patient, and biological monitoring systems to measure the effectiveness of the various locations of compressive force in pumping blood through the patient. The system can also include providing decompressive force to increase the efficacy of blood flow.

Methods and devices to improve the efficacy of mechanical cardiopulmonary resuscitation by changing the position of chest compression

A system for improving cardiac output of a patient suffering from pulseless electrical activity or shock and yet displays myocardial wall motion including: a sensor to detect myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase, a device to prompt the application of or apply a compressive force repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion.

Non-invasive device for synchronizing chest compression and ventilation parameters to residual myocardial activity during cardiopulmonary resuscitation

Incorporation of the electrodes for defibrillation into the patient-facing components of automated cardiopulmonary resuscitation systems

A method for treating chest wall injuries, including rib fractures, flail chest injuries or surgical incisions. The method comprising creating a localized airtight compartment external to the chest wall and fully covering the area of injury, varying the pressure within the compartment, and providing dynamic real-time counter forces that act reciprocal to the intrathoracic pressure changes that occur during ventilation. In a preferred embodiment, the apparatus has the capability of sensing the patient's chest wall motion created by ventilation, a pressure control component capable of varying the pressure within the airtight compartment such that it opposes pressure changes within the chest. The apparatus would be particularly useful in preventing the paradoxical movement of flail chest injuries. The method would also lessen pain experienced by patients with thoracic injuries such as rib fractures and post operative suffering.

Mechanical cardiopulmonary resuscitation combining circumferential constriction and anteroposterior compression of the chest

A method for utilizing heat transfer parameters or energy expenditure of devices providing controlled hypothermia, normothermia or hyperthermia to detect changes, or the absence of changes, a patient's endogenous set-point temperature; which is not available during exogenously induced targeted temperature management. A particular embodiment would allow detection of fever in patients undergoing targeted temperature managed.

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Putney, VT, United States of America

Norman Alan Paradis