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. 03, 2002
Filed:
Oct. 06, 2000
Fujio Miyawaki, Fujimi-shi, Saitama, JP;
Other;
Abstract
A ventricular assist device includes a blood conduit which carries the blood ejected from the ventricle to the ventricular assist device, a one-way valve which is provided in the blood conduit and can open only toward the ventricular assist device, an afterload-controlling chamber which temporarily stores the blood ejected from the ventricle, a pressure sensor which measures the pressure in the afterload-controlling chamber, a blood pump and a control unit thereof, a blood conduit that carries the blood to an artery, and a probe for measuring blood flow rate and a flowmeter which control the flow rate of the blood pump The pressure of the afterload-controlling chamber is controlled so as to keep the one-way valve closed during ventricular diastole, and also controlled so as to direct all the blood ejected from the ventricle into the afterload-controlling chamber during ventricular systole. Therefore, a new ventricular assist device can be provided, which enables the native heart to eject blood with very low ejection resistance and ensures sufficient ventricular relaxation and filling.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile