The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2016
Filed:
Mar. 27, 2012
Takayuki Miyakoshi, Nagano, JP;
Shinji Kobayashi, Nagano, JP;
Hideki Kanebako, Nagano, JP;
Tomoya Kitano, Nagano, JP;
Takayuki Miyakoshi, Nagano, JP;
Shinji Kobayashi, Nagano, JP;
Hideki Kanebako, Nagano, JP;
Tomoya Kitano, Nagano, JP;
SUN MEDICAL TECHNOLOGY RESEARCH CORPORATION, Nagano, JP;
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.