Sampling intrinsic AV conduction time
US-9220905-B2 · Dec 29, 2015 · US
Systems and methods for determining optimal interventricular pacing delays based on electromechanical delays
US8972009B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8972009-B2 |
| Application number | US-97641910-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 22, 2010 |
| Priority date | Dec 22, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Techniques are provided for use with implantable medical devices such as pacemakers for optimizing interventricular (VV) pacing delays for use with cardiac resynchronization therapy (CRT). In one example, ventricular electrical depolarization events are detected within a patient in which the device is implanted. The onset of isovolumic ventricular mechanical contraction is also detected based on cardiomechanical signals detected by the device, such as cardiogenic impedance (Z) signals, S1 heart sounds or left atrial pressure (LAP) signals. Then, an electromechanical time delay (T_QtoVC) between ventricular electrical depolarization and the onset of isovolumic ventricular mechanical contraction is determined. VV pacing delays are set to minimize the time delay to the onset of isovolumic ventricular mechanical contraction. Various techniques for identifying the onset of isovolumic ventricular contraction based on Z, S1 or LAP or other cardiomechanical signals are described. In some examples, CRT nonresponders are specifically identified and/or heart failure progression is tracked.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for use with an implantable cardiac rhythm management device for implant within a patient, the method comprising: detecting ventricular electrical depolarization within the patient based on electrocardiac signals sensed by the device; detecting an onset of isovolumic ventricular mechanical contraction within the patient based on cardiomechanical signals sensed by the device; determining a time delay from ventricular electrical depolarization to…
Assignees
Inventors
Classifications
- A61N1/3627Primary
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8972009B2 cover?
- Techniques are provided for use with implantable medical devices such as pacemakers for optimizing interventricular (VV) pacing delays for use with cardiac resynchronization therapy (CRT). In one example, ventricular electrical depolarization events are detected within a patient in which the device is implanted. The onset of isovolumic ventricular mechanical contraction is also detected based o…
- Who is the assignee on this patent?
- Min Xiaoyi, Pacesetter Inc
- What technology area does this patent fall under?
- Primary CPC classification A61N1/3627. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).