Flow rate estimation device for a blood pump and a blood pump system including the device
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United States of America Patent
Stats
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Sep 18, 2012
Grant Date -
Mar 31, 2011
app pub date -
Dec 8, 2010
filing date -
Apr 15, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a flow rate estimation device of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted into the correction term, thus forming a flow rate estimation formula of the objective blood pump. The flow rate Q of the objective blood pump is estimated based on the flow rate estimation formula and the values of the rotational speed N and the consumption current I of the motor of the objective blood pump, and the attribute data Z of the blood of the patient.
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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SUN MEDICAL TECHNOLOGY RESEARCH CORPORATION | 2990 SHIGA SUWA-SHI NAGANO 392-0012 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Miyakoshi, Takayuki | Nagano, JP | 13 | 225 |
# of filed Patents : 13 Total Citations : 225 | |||
Yamazaki, Kenji | Tokyo, JP | 123 | 2798 |
# of filed Patents : 123 Total Citations : 2798 |
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Patent Citation Ranking
- 13 Citation Count
- A61M Class
- 32.09 % this patent is cited more than
- 13 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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