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Catheter systems for measuring electrical properties of tissue and methods of use
US8977334B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8977334-B2 |
| Application number | US-201314091423-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2013 |
| Priority date | Nov 29, 2012 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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Catheter systems for measuring at least one electrical property, e.g., impedance, of cardiac tissue of a living being are disclosed. The system includes a catheter having a tip with a sensing electrode, a guard electrode and an electrical shield. The sensing electrode is arranged to engage the cardiac tissue and is coupled to circuitry for measuring the at least one electrical property of the cardiac tissue, shielding the sensing electrode from bulk blood adjacent the cardiac tissue. The measurement can gated to the cardiac cycle. Additional embodiments include multi-electrode sensor catheter tips for high density mapping. Moreover, such tips may be dynamically configurable, i.e., their electrodes can be variably assigned as sensor electrodes or guard electrodes by associated circuitry. Such multi-electrode configuration and reconfiguration can be gated to the cardiac cycle.
First claim
Opening claim text (preview).
We claim: 1. A catheter system for detecting at least one electrical property of anisotropically conducting cardiac tissue of a living being in an area of the tissue comprising surrounding blood having electrical conductance, said system comprising a catheter having a distal end comprising a plurality of electrodes configured for engaging the cardiac tissue for effecting high density impedance mapping thereof, and an electrical shield, said distal end of said catheter being…
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Human Necessities · mapped topic
- A61B5/0538Primary
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
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- What does patent US8977334B2 cover?
- Catheter systems for measuring at least one electrical property, e.g., impedance, of cardiac tissue of a living being are disclosed. The system includes a catheter having a tip with a sensing electrode, a guard electrode and an electrical shield. The sensing electrode is arranged to engage the cardiac tissue and is coupled to circuitry for measuring the at least one electrical property of the c…
- Who is the assignee on this patent?
- Albert Einstein Healthcare Network, Univ Pennsylvania
- What technology area does this patent fall under?
- Primary CPC classification A61B5/0538. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 10 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).