Title:
METHOD AND APPARATUS FOR DETERMINING FAILURE OF PUMP FOR ARTIFICIAL HEART
Document Type and Number:
Japanese Patent JP3882069
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for easily determining the failure of a pump for an artificial heart, which is desired in view of the fact that the pump, particularly of the type embedded into the body, when a patient using it is in bad health, does not make it clear whether the artificial heart or another part of the body has failed.
SOLUTION: For the process of determining the failure of the pump for an artificial heart, if measurement data for the specific rpm of the pump being actuated are not on a 'pressure-flow' characteristic curve in Figure 1 (a), then the geometrical failure of the pump such as damage to a blade is determined to have occurred. If the measurement data are not on a 'consumed power-flow' curve, then dysemia such as thrombosis is determined to have occurred. If the data are on both curves, a failure is determined to have occurred not in the pump but in another part of the patient's body or a connection tube, etc.
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Inventors:
Takashi Yamane
Yoshiyuki Sankai
Yoshiyuki Sankai
Application Number:
JP2001206189A
Publication Date:
February 14, 2007
Filing Date:
July 06, 2001
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
A61M1/10; F04D15/00; F04B49/10; F04C13/00; F04C14/00; F04C14/24; F04C14/28; F04D13/06; F04D15/02; F04D29/00; (IPC1-7): A61M1/10; F04B49/10; F04C13/00; F04C15/04; F04D13/06; F04D15/00; F04D15/02; F04D29/00
Domestic Patent References:
| JP2001517495A | ||||
| JP2001501117A | ||||
| JP10085322A | ||||
| JP61226057A |
Foreign References:
| WO1999015212A1 |
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