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AssigneeCardiac Pacemakers, Inc.
InventorsApurv Kamath, Paul Haefner, Darrell Orvin Wagner, Marina Brockway
Estimating the term…
Cardiac systems and methods using ECG and blood information for arrhythmia detection and discrimination. Detection circuitry is configured to produce an ECG. An implantable blood sensor configured to produce a blood sensor signal is coupled to a processor. The processor is coupled to the detection and energy delivery circuitry, and used to evaluate and treat cardiac rhythms using both the cardiac electrophysiologic and blood sensor signals. The blood sensor is configured for subcutaneous non-intrathoracic placement and provided in or on the housing, on a lead coupled to the housing, and/or separate to the housing and coupled to the processor via hardwire or wireless link. The blood sensor may be configured for optical sensing, using a blood oxygen saturation sensor or pulse oximeter. A cardiac rhythm may be evaluated using the electrocardiogram signal and the blood sensor signal, and tachyarrhythmias may be treated after confirmation using the blood sense signal.
An implantable subcutaneous device, comprising:
A rhythm evaluation method, comprising:
An implantable subcutaneous device, comprising:
Dependencies are inferred from the claim text.
From the US filing history. Foreign family members aren’t listed.
Heart defibrillators: implantable devices for applying electric shocks to the heart, e.g. for cardioversion
Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00,…
Electrodes: for implantation or insertion into the body, e.g. heart electrode
For implantation or insertion into the body, e.g. heart electrode: transvascular endocardial electrode systems
Term ended 29 Jan 2025 (estimated)
The present invention relates generally to implantable cardiac monitoring and stimulation devices and, more particularly, to cardiac systems and methods using subcutaneously sensed blood information.
The healthy heart produces regular, synchronized contractions. Rhythmic contractions of the heart are normally controlled by the sinoatrial (SA) node, which is a group of specialized cells located in the upper right atrium. The SA node is the normal pacemaker of the heart, typically initiating 60-100 heartbeats per minute. When the SA node is pacing the heart normally, the heart is said to be in normal sinus rhythm.
If the heart's electrical activity becomes uncoordinated or irregular, the heart is denoted to be arrhythmic. Cardiac arrhythmia impairs cardiac efficiency and may be a potential life-threatening event. Cardiac arrhythmias have a number of etiological sources, including tissue damage due to myocardial infarction, infection, or degradation of the heart's ability to generate or synchronize the electrical impulses that coordinate contractions.
FIGS. 1A and 1B are views of a transthoracic cardiac sensing and/or stimulation device as implanted in a patient in accordance with an embodiment of the present invention;
FIG. 1C is a block diagram showing various components of a transthoracic cardiac sensing and/or stimulation device in accordance with an embodiment of the present invention;
FIG. 1D is a block diagram illustrating various processing and detection components of a transthoracic cardiac sensing and/or stimulation device in accordance with an embodiment of the present invention;
While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail below. It is to be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the contrary, the invention is intended to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
In the following description of the illustrated embodiments, references are made to the accompanying drawings that form a part hereof, and in which is shown by way of illustration, various embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized, and structural and functional changes may be made without departing from the scope of the present invention.
System and methods of the present invention may include one or more of the features, structures, methods, or combinations thereof described hereinbelow. For example, implantable cardiac systems and methods in accordance with the present invention may be implemented to include one or more of the advantageous features and/or processes described below. It is intended that such devices and methods need not include all of the features described herein, but may be implemented to include selected features that provide for unique structures and/or functionality. Such devices and methods may be implemented to provide a variety of therapeutic and/or diagnostic functions.