Centrifugal pump

- Terumo Kabushiki Kaisha
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Description

FIG. 1 is a top and front perspective view of a centrifugal pump showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D246714 December 20, 1977 Horvath
D295047 April 5, 1988 Price
D305124 December 19, 1989 Singhoff
D310838 September 25, 1990 Turbanisch
D354495 January 17, 1995 Tojo
4253798 March 3, 1981 Sugiura
4589822 May 20, 1986 Clausen et al.
4606698 August 19, 1986 Clausen et al.
4643641 February 17, 1987 Clausen et al.
5263924 November 23, 1993 Mathewson
5290236 March 1, 1994 Mathewson
5316440 May 31, 1994 Kijima et al.
Foreign Patent Documents
804064 April 1951 DEX
55-9560 March 1980 JPX
4-336073 November 1992 JPX
5-71490 March 1993 JPX
5-212112 August 1993 JPX
5-212111 August 1993 JPX
5-212110 August 1993 JPX
Other references
  • "A Straight Path Centrifugal Blood Pump Concept in Capiox Centrifugal Pump", T. Kijima et al., Artificial Organs, vol. 17, No. 7, 1993, pp. 1-6. "Hydrodynamical and Hemodynamical Evaluation of Rotary Bloodpumps", H. Engelhardt et al., Proceedings of the International Workshop on Rotary Bloodpumps, Vienna 1988, ISBN 3-900928-00-2, pp. 76-81.
Patent History
Patent number: D372921
Type: Grant
Filed: Jul 3, 1995
Date of Patent: Aug 20, 1996
Assignee: Terumo Kabushiki Kaisha (Tokyo)
Inventors: Tomonori Ijiri (Tokyo), Nobuhiko Amano (Kanagawa-Ken), Toshihiko Nojiri (Kanagawa-Ken)
Primary Examiner: Ralf Seifert
Law Firm: Burns, Doane, Swecker & Mathis, L.L.P.
Application Number: 0/43,930
Classifications
Current U.S. Class: Pump Or Compressor (D15/7)