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. 29, 2015
Filed:
Feb. 16, 2012
Clive Buckberry, Warwick, GB;
Clive Buckberry, Warwick, GB;
Quanta Fluid Solutions Ltd., Warwickshire, GB;
Abstract
A blood pumpcomprising: a cartridgehaving a concave recesstherein having a surface, and a flexible membranecovering said recess, the concave recess and flexible membrane forming a pump chamberhaving an inletand an outletwherein: said flexible membrane is movable between a first position, separated from said surface wherein in such position the pump chamber has a maximum volume, and a second position, substantially adjacent said surface such that in said second position the pump chamber has a minimum volume, a pump driver mechanismarranged to interface with the cartridge, said driver operable to move the flexible membrane in a first direction into the recess to, in use, pump blood from the chamber and operable to move the flexible membrane in a second direction away from the recess to, in use, draw blood into said chamber; and wherein the pump driver controls the movement of the flexible membrane in the first direction such that the speed at which it is moving reduces as it approaches the surface of the concave recess.