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Patent Searching and Data


Title:
Ventricular assist device pump
Document Type and Number:
Japanese Patent JP6345112
Kind Code:
B2
Abstract:
A ventricular assist blood pump of the present invention includes: a rotational part having an impeller; and a housing which houses the rotational part therein. In the ventricular assist blood pump, a difference between a maximum flow rate and a minimum flow rate of a liquid in a state where the ventricular assist blood pump is connected to a liquid-discharge source which discharges the liquid while increasing and decreasing the flow rate of the liquid at a fixed cycle is 40% or more of a difference between the maximum flow rate and the minimum flow rate of the liquid in a state where the ventricular assist blood pump is not connected to the liquid-discharge source. A ventricular assist blood pump of the present invention can suppress the degree at which the health of a user deteriorates during long-term use compared to a conventional ventricular assist blood pump.

Inventors:
Takayuki Miyakoshi
Shinji Kobayashi
Hideki Kinbako
Tomoya Kitano
Application Number:
JP2014507103A
Publication Date:
June 20, 2018
Filing Date:
March 27, 2012
Export Citation:
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Assignee:
Sun Medical Technology Research Institute Co., Ltd.
International Classes:
A61M1/10; F04D7/02; F04D29/00
Domestic Patent References:
JP200558617A
JP2009297174A
Attorney, Agent or Firm:
Seigo Matsuo