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:
Dec. 06, 2011
Filed:
Jan. 22, 2007
Robert M. Smith, Grosse Ile, MI (US);
Roger W. Snyder, New Braunfels, TX (US);
Paul G. Dedecker, Clinton Township, MI (US);
Robert M. Smith, Grosse Ile, MI (US);
Roger W. Snyder, New Braunfels, TX (US);
Paul G. DeDecker, Clinton Township, MI (US);
L-Vad Technology, Detroit, MI (US);
Abstract
A drive unit to control the peak pressure of air for the inflation of a left ventricular assist system is disclosed. The control of the peak pressure can address the problem of the 'kick' experienced by patients when the peak inflation pressure reaches approximately 200 mm Hg. The peak pressure of the air released for the inflation cycle of the system is reduced either by the reduction of the inner diameter of the interconnect line running from the compression tank to the valve manifold or the use of a multi-valve manifold with independently controlled valves and an electronic controller to selectively open and close the valves of the manifold. Either technique, whether used alone or in combination, reduces the peak pressure of the air released for the inflation cycle to below the levels associated with the 'kick,' while still meeting the operating specifications to properly inflate and deflate the system's blood pump.