NDLI: Rotary blood pump (Document No: 19940024867)

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Rotary blood pump (Document No: 19940024867)

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1993
Description	A rotary blood pump is presented. The pump includes a pump housing for receiving a flow straightener, a rotor mounted on rotor bearings and having an inducer portion and an impeller portion, and a diffuser. The entrance angle, outlet angle, axial, and radial clearances of the blades associated with the flow straightener, inducer portion, impeller portion, and diffuser are optimized to minimize hemolysis while maintaining pump efficiency. The rotor bearing includes a bearing chamber that is filled with crosslinked blood or other bio-compatible material. A back emf integrated circuit regulates rotor operation and a microcomputer may be used to control one or more back emf integrated circuits. A plurality of magnets are disposed in each of a plurality of impeller blades with a small air gap. A stator may be axially adjusted on the pump housing to absorb bearing load and maximize pump efficiency.
File Size	1580951
Page Count	34
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19940024867
Archival Resource Key	ark:/13960/t5jb12x59
Language	English
Publisher Date	1993-11-10
Access Restriction	Open
Subject Keyword	Mechanical Engineering Hemolysis Integrated Circuits Housings Rotors Impellers Stators Microcomputers Magnets Blood Pumps Blood Loads Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Patent

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