Physio-control, Inc.

Medtronic Physio-control Manufacturing Corporation

Quinton Instrument Company

Physio-control Manufacturing Corporation

Medtronic Physio-control Corp.

Robert A Niskanen

Richard C Nova

David R Hampton

Gregory T Kavounas

Fred William Chapman

John C Daynes

Douglas Keith Medema

Ronald Eugene Stickney

James M Owen

Rene Ann Young Mitchell

William E Saltzstein

Tae Hong Joo

Paul W Schmitt

Wayne E Quinton

David S Paeth

Peter D Gadsby

Vernon E Modes

Hak W Tam

Alan G Bailey

René Ann Young Mitchell

Gary A DeBardi

Lou Vitez

An external defibrillator is customized for at least one person, i.e., an anticipated patient, through creation of a profile for the anticipated patient that allows the defibrillator and users of the defibrillator to provide customized treatment to the patient. The profile may include treatment parameters for the anticipated patient, such as defibrillation therapy parameters selected for the patient. The profile may also include a baseline recording of a physiological parameter of the patient, and medical history and personal information regarding the patient. In some embodiments, the external defibrillator stores a profile for each of one or more anticipated patients within a memory. In other embodiments, a profile for an anticipated patient is stored within a medium associated with that anticipated patient. The medium may, for example, be a removable medium for external defibrillators.

Defibrillators customized for anticipated patients

The invention provides a wireless automatic location identification (ALI) capable system (), including a medical device () having a wireless data communicator (), a wireless communication network (), and a remote locating service () for remotely locating and monitoring one or more medical devices over the wireless communication network. When the medical device is linked to the remote locating service over the communication network, the ALI-capable system identifies the location of the medical device and relays the location information to the remote locating service. The system permits reliable determination of the location of the medical device wherever the medical device is situated. The medical device may further be configured to transmit signals indicative of its status, condition, or self-test results, to the remote locating service. This feature allows the remote locating service to centrally monitor the status or condition of a plurality of medical devices.

Method and system for locating a portable medical device

The invention provides a wireless automatic location identification (ALI) capable system ( ), including a medical device ( ) having a wireless data communicator ( ), a wireless communication network ( ), and a remote locating service ( ) for remotely locating and monitoring one or more medical devices over the wireless communication network. When the medical device is linked to the remote locating service over the communication network, the ALI-capable system identifies the location of the medical device and relays the location information to the remote locating service. The system permits reliable determination of the location of the medical device wherever the medical device is situated. The medical device may further be configured to transmit signals indicative of its status, condition, or self-test results, to the remote locating service. This feature allows the remote locating service to centrally monitor the status or condition of a plurality of medical devices.

A reduced lead set device (,) that detects and reports the presence of an acute cardiac ischemic condition in a patient includes a reduced set of sensing electrodes (,and,) placed on a patient for acquiring ECG data from the patient. The reduced lead set device evaluates the ECG data on a reduced set of leads by analyzing local features and/or global features of the ECG data. Local features may include local morphological measures such as ST elevation and clinical information on the patient such as age and sex. Global features include projection coefficients calculated from projecting a concatenated vector of heartbeat data onto separate sets of basis vectors that define signal subspaces of ischemic and non-ischemic ECGs. One or more classifiers evaluate the local features and/or global features to determine whether an acute cardiac ischemic condition is detected. The operating point, i.e., sensitivity and specificity, of the reduced lead set device is adjustable. The result of the evaluation is reported to the user of the device.

Reduced lead set device and method for detecting acute cardiac ischemic conditions

A device (,) that detects and reports the presence of an acute cardiac ischemic condition in a patient includes sensing electrodes (,, and,) placed on a patient for acquiring multiple (e.g., twelve) lead ECG data from the patient. The device evaluates the acquired ECG data by analyzing global features derived from the ECG data. Global features include projection coefficients calculated from projecting a concatenated vector of representative heartbeat data onto sets of basis vectors that define an acute cardiac ischemic ECG subspace and a non-ischemic ECG subspace. A classifier evaluates the global features to determine whether an acute cardiac ischemic condition is detected. In a further embodiment of the invention, one or more classifiers evaluate local features, such as local morphological features and patient clinical information, in addition to the global features to determine whether an acute cardiac ischemic condition is detected. The device (,) may be configured with an adjustable sensitivity/specificity operating point. The result of the evaluation is reported to the user of the device.

Method and apparatus for detecting a condition associated with acute cardiac ischemia

Disclosed is a combined skin preparation and monitoring electrode (12). The electrode reduces motion artifacts in recording biopotentials by penetrating a patient's skin prior to acquiring biopotentials. Penetration of the skin reduces skin impedance and the skin's propensity to generate motion artifacts. The electrode has a resilient dome (16) with penetration tines (18) extending from the concave inner surface of the dome. Upon application of a force to the dome, the dome moves from a first position to a second position, forcing the penetration tines into a patient's skin. Upon removal of the force, the dome moves back to its original configuration, withdrawing the penetration tines from the patient's skin.

Combined skin preparation and monitoring electrode

A medical electrode and skin preparation device is adapted to be secured to the skin and is designed to prepare the skin by penetration of the epidermal layer of the skin in contact with the electrical conductor of the electrode after the electrode is secured in place on the skin. The electrode includes abrading member associated with electrical conductor capable of transmitting biopotential events for recording, with the electrical conductor retained by a collar and adhesive-coated pad securing the electrode to the skin of the patient. The abrading member in contact with the skin is movable relative to the skin of the patient and collar by an applicator gun to penetrate the epidermal layer of skin after the electrode is placed on the skin. Uniform skin preparation achieved by the electrode and applicator gun minimizes motion artifacts arising from skin potential variations.

Medical electrode and system for minimizing motion artifacts

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Seattle, WA, United States of America

Robert A Niskanen