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Pulse detection using patient physiological signals
US8992432B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992432-B2 |
| Application number | US-201113279030-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 21, 2011 |
| Priority date | Aug 26, 2002 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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The presence of a cardiac pulse in a patient is determined by evaluating physiological signals in the patient. In one embodiment, a medical device evaluates optical characteristics of light transmitted into a patient to ascertain physiological signals, such as pulsatile changes in general blood volume proximate a light detector module. Using these features, the medical device determines whether a cardiac pulse is present in the patient. The medical device may also be configured to report whether the patient is in a VF, VT, asystole, or PEA condition, in addition to being in a pulseless condition, and prompt different therapies, such as chest compressions, rescue breathing, defibrillation, and PEA-specific electrotherapy, depending on the analysis of the physiological signals. Auto-capture of a cardiac pulse using pacing stimuli is further provided.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method comprising: transmitting light into a patient from a light source positioned external to the patient; receiving the transmitted light at a sensor positioned external to the patient; generating a light detection signal in response to the received light, the light detection signal having a first amplitude and a first shape at a first time; monitoring, over a period of monitored time, the light detection signal for changes in at least one o…
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- A61B5/02416Primary
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US8992432B2 cover?
- The presence of a cardiac pulse in a patient is determined by evaluating physiological signals in the patient. In one embodiment, a medical device evaluates optical characteristics of light transmitted into a patient to ascertain physiological signals, such as pulsatile changes in general blood volume proximate a light detector module. Using these features, the medical device determines whether…
- Who is the assignee on this patent?
- Owen James M, Jayne Cynthia P, Crone William E, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification A61B5/02416. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 31 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).