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:
May. 12, 1998
Filed:
May. 21, 1996
Stephen G Kovacs, Durham, NC (US);
Duke University, Durham, NC (US);
Abstract
A direct mechanical bi-ventricular cardiac assist device comprises a ventricular actuation cup having two independently operated diaphragms for independently actuating the right and left ventricle of the patient's heart. The pressure and timing of each diaphragm can be independently varied to maximize forward cardiac output. The ventricular actuation cup is constructed in two components including a main body section and an end piece. The diaphragm wraps around the ends of the main body section and the edges of the diaphragm are bonded to the outer surface of the main body section. Bonding of the diaphragm to the outer surface of the ventricular actuation cup eliminates lifting and tearing vectors which could result in diaphragm failure.