Oximeter with selection between calculations based on patient type
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 20, 2008
Grant Date -
Oct 14, 2004
app pub date -
Oct 30, 2003
filing date -
Apr 1, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pulse oximeter sensor with a light source optimized for low oxygen saturation ranges and for maximizing the immunity to perturbation induced artifact. Preferably, a red and an infrared light source are used, with the red light source having a mean wavelength between 700-790 nm. The infrared light source can have a mean wavelength as in prior art devices used on patients with high saturation. The sensor of the present invention is further optimized by arranging the spacing between the light emitter and light detectors to minimize the sensitivity to perturbation induced artifact. The present invention optimizes the chosen wavelengths to achieve a closer matching of the absorption and scattering coefficient products for the red and IR light sources. This optimization gives robust readings in the presence of perturbation artifacts including force variations, tissue variations and variations in the oxygen saturation itself.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
NELLCOR PURITAN BENNETT INC | PLEASANTON CA 94588-2719 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Casciani, James R | Cupertino, CA | 16 | 2542 |
# of filed Patents : 16 Total Citations : 2542 | |||
Mannheimer, Paul D | Belmont, CA | 140 | 13147 |
# of filed Patents : 140 Total Citations : 13147 | |||
Nierlich, Steven L | San Leandro, CA | 5 | 577 |
# of filed Patents : 5 Total Citations : 577 | |||
Ruskewicz, Stephen J | Kensington, CA | 20 | 1786 |
# of filed Patents : 20 Total Citations : 1786 |
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Patent Citation Ranking
- 40 Citation Count
- A61B Class
- 56.70 % this patent is cited more than
- 17 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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