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. 27, 2011
Filed:
Aug. 24, 2004
Applicants:
Martin Hagg, Wannweil, DE;
Ralf Kuhner, Stuttgart, DE;
Inventors:
Martin Hagg, Wannweil, DE;
Ralf Kuhner, Stuttgart, DE;
Assignee:
ERBE Elektromedizin GmbH, Tübingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 41/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
For water-jet surgery pump devices are known by means of which a sterile fluid is transported through a reservoir to the surgical instrument by means of piston pumps or similar volumetrically transporting pumps. In accordance with the present invention it is proposed either to construct drive means for the pumps in such a way that their suction cycle is shorter than the output cycle, or to provide a pump with at least three pump chambers and to construct the drive means in such a way that the suction and output cycles of the pump chambers overlap one another.