West Affum Holdings Corp.

West Affum Holdings Dac

Medtronic Physio-control Manufacturing Corporation

Physio-control Manufacturing Corporation

Medtronic Physio-control Corp.

Other

West Affum Holdings Designated Activity

Douglas Keith Medema

Robert Reuben Buchanan

Kenneth Frederick Cowan

Dallas Eugene Meeker

David Peter Finch

Laura Marie Gustavson

Daniel James Finney

Garrett McCann Kotlarchik

Phillip Dewey Foshee, Jr

William Edward Crone

Zhong Qun Lu

Joseph Leo Sullivan

Pamela F Breske

Daniel Ralph Piha

Steven E Sjoquist

Robert A Niskanen

Jaeho Kim

Richard C Nova

Zoie R Engman

Amanda K Hall

Quan Hoang Nguyen

Angela M Stewart

Kerstin Dorst

Gregory T Kavounas

David R Hampton

Erick Michael Roane

William E Saltzstein

Tyson G Taylor

Jonathan Paul Niegowski

Tae Hong Joo

Karen Elizabeth McEwen

Robert Rueben Buchanan

Paul W Schmitt

Eduard Deml

Cynthia P Jayne

Daniel Yerkovich

Daniel W Piraino

Kiah Lesher

Randall J Makela

Eduard Johann Deml

Richard E Kunz

A wearable cardioverter defibrillator ('WCD') latching connector system includes a receptacle positioned within a WCD monitor, and a connector configured to removably engage the receptacle.

Wearable cardioverter defibrillator latching connector

A WCD system is configured to detect when a therapy administered to a patient by the WCD system is unsuccessful, and in response determine whether to send notifications to remote non-witness responders. The WCD system may be configured to decide to send such notifications after the WCD system determines it has administered a predetermined number of unsuccessful shocks to the patient. The predetermined number of unsuccessful shocks may be the maximum number of unsuccessful shocks the WCD system will administer to a patient, or every Xth shock (e.g., 3shock). The WCD system can be configured to periodically resend the notification. The notifications may be in the form of SMS, voice messages, emails, app notifications, etc. sent to cell phones, smartphones, computers, laptops, tablets, etc. of the responders either directly, via a server, or via a CAD-coupled server.

Wearable cardiac defibrillator systems and methods and software for contacting non-witnessing responders

A wearable cardioverter defibrillator (WCD) comprises a plurality of electrocardiography (ECG) electrodes. An episode is opened responsive to a string of consecutive segments meeting one or more shock criteria, and a shockable rhythm is confirmed for the episode responsive to a subsequent string of consecutive segments meeting one or more confirmation criteria.

Wearable cardioverter defibrillator (WCD) segment based episode opening and confirmation periods

Embodiments of a wearable cardioverter defibrillator (WCD) system are configured to monitor a patient's ECG for shockable arrhythmias and deliver a shock to the patient in response to such a detection. To monitor the patient's ECG with reduced signal noise to improve the system's performance, the system includes a cable assembly having: a signal line; an inner shield and an outer shield; an ECG electrode electrically connected to the signal line of the cable assembly; and an amplifier having first and second input nodes respectively connected to the signal line and the outer shield of the cable assembly. The amplifier's output node is electrically connected to the inner shield of the cable assembly to reduce the reactive load seen by the patient's heart in driving the ECG sensing circuitry, which reduces the noise on the ECG signal outputted by the amplifier.

Wearable cardioverter defibrillator (WCD) system with active ECG cable shielding

A supportive clothing article for a wearable cardioverter defibrillator (WCD), including a belt, the belt including a first end with a first portion of a fastener and a second end with a second portion of the fastener, wherein the belt is structured to fasten around the torso of patient below the chest area of the patient, the belt including a first conductive mesh portion adjacent the first end of the belt or the second end of the belt, two straps, a back portion extending from the belt at an intermediary position on the belt to each of the two straps, the back portion including a conductive mesh, a first support receptacle attached to and extending from the belt and attachable to one of the two straps, and a second support receptacle attached to and extending from the belt and attachable to the other of the two straps.

Wearable cardioverter defibrillator with breast support

A wearable cardioverter defibrillator (WCD) comprises a plurality of electrocardiography (ECG) electrodes, a right-leg drive (RLD) electrode, and a plurality of defibrillator electrodes to contact the patient's skin when the WCD is delivering therapy to the patient, a preamplifier coupled to the ECG electrodes and the RLD electrode to obtain ECG data from the patient as one or more ECG vectors, a high voltage subsystem to provide a defibrillation voltage to the patient through the plurality of defibrillator electrodes, and an impedance measurement circuit to measure an impedance across a first pair of ECG electrodes, wherein the impedance measurement circuit is to apply a balancing impedance across a second pair of ECG electrodes when an impedance of the second pair of ECG electrodes is not being measured.

Wearable cardioverter defibrillator (WCD) with ECG preamp having active input capacitance balancing

A wearable cardioverter defibrillator (WCD) system comprises a plurality of patient parameter electrodes and a plurality of defibrillator electrodes to contact a patient's skin when the WCD is delivering therapy to the patient, a processor to receive one or more patient parameters from the one or more patient parameter electrodes, an energy storage device to store a charge to provide electrical therapy to the patient via the plurality of defibrillator electrodes, and a non-invasive blood pressure (NIBP) monitor to obtain a blood pressure measurement of the patient and to provide the blood pressure measurement to the processor. The processor is to determine whether to provide electrical therapy to the patient based on the one or more patient parameters during an episode, and to obtain the blood pressure measurement from the NIBP monitor during the episode.

Wearable cardioverter defibrillator with a non-invasive blood pressure monitor

Technologies and implementations for a clip to connect coaxial cables onto a printed circuit board assembly (PCBA) are disclosed. The technologies and implementations facilitate improved signal integrity from the cable to various components of the PCBA. Additionally, the technologies and implementations help facilitate management of mechanical variations during connection of the coaxial cable.

Printed circuit board cable clip for signal sensitive applications

A wearable cardioverter defibrillator (WCD) comprises a plurality of electrocardiography (ECG) electrodes, a right-leg drive (RLD) electrode, and a plurality of defibrillator electrodes to contact the patient's skin when the WCD is delivering therapy to the patient, a preamplifier coupled to the ECG electrodes and the RLD electrode to obtain ECG data from the patient as one or more ECG vectors, a processor to receive ECG data from the preamplifier and an abort signal from a user interface, an isolation barrier to isolate the preamplifier from the processor, and a high voltage subsystem to provide a defibrillation voltage to the patient through the defibrillator electrodes in response to a shock signal received from the processor. A shock is provided when an abort signal is not received within a predetermined time period of a shock criterion being met. Less than one false alarm occurs every ten patient-days.

Wearable cardioverter defibrillator (WCD)

In embodiments, a wearable cardiac defibrillation (WCD) system includes one or more flexible ECG electrodes. The WCD system may have a support structure that is dimensioned to be worn so as to press the electrodes towards the body of the patient. The electrodes may be made from appropriate material so as to flex in order to match a contour of the body of the patient. An advantage over the prior art is that the flexible electrode may make better electrical contact with the patient's skin, and therefore provide a better ECG signal for the WCD system to perform its diagnosis.

Wearable cardiac defibrillation system with electrode assemblies having pillow structure

An external defibrillator system is configured with at least two different algorithms for determining the duration of a shock administered to a patient being treated and selects the algorithm based on one or more patient parameters such as, for example, the patient's TTI. The patient's TTI can be measured prior to or while the shock is being administered to the patient. The shock can be, for example, a multiphasic defibrillation or a multiphasic cardioversion shock. The charge voltage of the system's energy storage device can additionally be varied depending on the one or more patient parameters. For example, the system may charge the energy storage device so that the charge voltage is higher or lower than a nominal charge voltage responsive to the patient's TTI is higher or lower compared to an average TTI, respectively.

Defibrillation waveforms for a wearable cardiac defibrillator

A Wearable Cardioverter Defibrillator (WCD) system comprises an electrode assembly with a permeable ECG electrode and a moisture barrier. In some embodiments, the moisture barrier is configured to reduce drying out of the permeable ECG electrode to improve performance of the WCD system. In a further enhancement, some embodiments of the electrode assembly also include a pillow structure positioned on a non-skin-contacting surface of the electrode assembly to comfortably reduce movement artifact or noise in the received ECG signal.

Wearable cardioverter defibrtillator with improved ECG electrodes

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Everett, WA, United States of America

Douglas Keith Medema