Unlock instant, AI-driven research and patent intelligence for your innovation.
Detection of valid signals versus artifacts in a multichannel mapping system
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of signals and symbols, applied in the field of medical equipment, can solve problems such as trouble, and achieve the effect of improving accuracy
Active Publication Date: 2018-03-27
MEDTRONIC INC
View PDF58 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
This method is cumbersome as performance characteristics need to be parsed and inventoried
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0223] Embodiment 1 is a system for monitoring cardiac signals, the system comprising:
[0224] an electrode assembly comprising a plurality of electrodes configured to be positioned adjacent tissue of a patient;
[0226] Computing means coupled to the electrode means and the display means, wherein the computing means is configured to determine to obtain from a channel associated with an electrode from the plurality of electrodes by Is the signal valid and strong enough for:
[0227] i) calculating a first derivative of said signal;
[0228] ii) determining minimum and maximum values of said first derivative;
[0229] iii) determining whether the signs of the minimum value and the maximum value of the first derivative are different; and
[0230] Responsive to determining whether the signs of the minimum value and the maximu...
Embodiment 2
[0231] Embodiment 2 is the system of embodiment 1, wherein the signal is asserted when the signs of the minimum value and the maximum value of the first derivative are the same.
Embodiment 3
[0232] Embodiment 3 is the system as described in embodiments 2 to 3, further comprising:
[0233] Calculates the ratio of the absolute value of the larger first derivative value to the absolute value of the smaller first derivative value.
[0234] 1. Embodiment 4 is the system as described in embodiment 4, further comprising:
[0235] determining whether the ratio is greater than a preselected number; and determining whether the signal is valid in response to determining whether the ratio is greater than a preselected number.
[0236] 2. Embodiment 5 is the system of any one of embodiments 1 to 4, wherein declaring the The signal is valid.
[0237] 3. Embodiment 6 is the system of any one of embodiments 1 to 5, wherein in response to determining that the signs of the minimum value and the maximum value of the first derivative are the same, declaring the Invalid signal.
[0238] 4. Embodiment 7 is a method for determining whether a signal is valid or an artifact in a multi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
A system and associated method is disclosed that comprises an electrode apparatus comprising a plurality of electrodes configured to be located proximate tissue of a patient. A display apparatus comprising a graphical user interface, wherein the graphical user interface is configured to present information to a user. A computing apparatus coupled to the electrode apparatus and display apparatus, wherein the computing apparatus is configured to determine whether a signal acquired from a channel associated with an electrode from the plurality of electrodes is valid and sufficiently strong by i)calculating a first derivative of the signal; ii) determining a minimum and maximum derivative from the first derivative; iii) determining whether signs of the minimum and maximum derivative are different; and in response to determining whether the signs of the minimum and maximum derivative are different, displaying on a display apparatus whether the signal is valid.
Description
technical field [0001] The present disclosure relates to medical devices, and more particularly to medical devices for cardiac signal sensing, detection and analysis. Background technique [0002] An implantable medical device (IMD), such as an implantable pacemaker, cardioverter, defibrillator, or pacemaker-cardioverter-defibrillator, provides therapeutic electrical stimulation to the heart. IMDs may provide pacing to resolve bradycardia, or provide pacing or shocks to terminate tachyarrhythmias such as tachycardia or fibrillation. In some cases, the medical device may sense an intrinsic depolarization of the heart, detect an arrhythmia based on this intrinsic depolarization (or the absence of an intrinsic depolarization), and if an arrhythmia is detected based on an intrinsic depolarization The delivery of electrical stimulation to the heart is then controlled. [0003] IMDs can also provide cardiac resynchronization therapy (CRT), which is a form of pacing. CRT involve...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More