Patents by Inventor Reinhard Knuth
Reinhard Knuth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7217108Abstract: The hose pump comprises an eccentric drive with numerous eccentric discs (21) fastened to a shaft (20). Each eccentric disc (21) drives a crank drive (24) having a connecting rod (25). At the end of the connecting rod (25), a pump finger (11) is borne for compressing a pump hose (10). A sealing diaphragm (27) is disposed between the eccentric drive and the pump hose (10) for preventing liquid from intruding into the interior of the housing (16). The connecting rod (25) sealingly passes through the sealing diaphragm (27). The sealing diaphragm (27) comprises lateral folds (31) so that it does not exert any substantial forces upon the crank drive (24). The hose pump has a low power consumption and permits a small structure.Type: GrantFiled: July 3, 2003Date of Patent: May 15, 2007Assignee: B. Braun Melsungen AGInventors: Dieter Herwig, Reinhard Knuth
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Patent number: 7121815Abstract: An infusion pump has a housing (10) accommodating a pump finger mechanism (12). The pump finger mechanism (12) acts on a pump hose (13) fastened at holders (16, 21) of the housing. The pump hose (13) is supported by a door (24). In order to facilitate proper and positionally correct placement of the pump hose, one of the holders (16) includes an oblique pin. The associated transition piece (15) of the pump hose (13) has a hole (18) with the same inclination angle as the oblique pin. The other transition piece (20) is of a different structure so that the transition pieces cannot be mixed up. A longitudinal color strip (29) on the pump hose is provided to visually indicate any twisting of the hose.Type: GrantFiled: June 20, 2003Date of Patent: October 17, 2006Assignee: B. Braun Melsungen AGInventors: Reinhard Knuth, Ronald Lutz, Bodo Schacht
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Publication number: 20040037723Abstract: The hose pump comprises an eccentric drive with numerous eccentric discs (21) fastened to a shaft (20). Each eccentric disc (21) drives a crank drive (24) having a connecting rod (25). At the end of the connecting rod (25), a pump finger (11) is borne for compressing a pump hose (10). A sealing diaphragm (27) is disposed between the eccentric drive and the pump hose (10) for preventing liquid from intruding into the interior of the housing (16). The connecting rod (25) sealingly passes through the sealing diaphragm (27). The sealing diaphragm (27) comprises lateral folds (31) so that it does not exert any substantial forces upon the crank drive (24). The hose pump has a low power consumption and permits a small structure.Type: ApplicationFiled: July 3, 2003Publication date: February 26, 2004Applicant: B. Braun Melsungen AGInventors: Dieter Herwig, Reinhard Knuth
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Publication number: 20040022655Abstract: An infusion pump has a housing (10) accommodating a pump finger mechanism (12). The pump finger mechanism (12) acts on a pump hose (13) fastened at holders (16, 21) of the housing. The pump hose (13) is supported by a door (24). In order to facilitate proper and positionally correct placement of the pump hose, one of the holders (16) includes an oblique pin. The associated transition piece (15) of the pump hose (13) has a hole (18) with the same inclination angle as the oblique pin. The other transition piece (20) is of a different structure so that the transition pieces cannot be mixed up. A longitudinal color strip (29) on the pump hose is provided to visually indicate any twisting of the hose.Type: ApplicationFiled: June 20, 2003Publication date: February 5, 2004Applicant: B. Braun Melsungen AGInventors: Reinhard Knuth, Ronald Lutz, Bodo Schacht
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Patent number: 5242279Abstract: A pump hose for a peristaltic pump has a suction-side end and a pressure-side end. Each end is provided with a bushing integrally connected thereto and adapted for suspending attachment to the peristaltic pump by holding members. Each bushing holds a suspension device having two side plates directed to opposite sides in symmetry with the longitudinal axis of the hose and each side plate is formed with an eyelet therein. The eyelets in the side plates on the suction-side end of the hose have a different form and/or size than the eyelets in the side plates on the pressure-side end of the hose. The eyelets are adapted for mounting on fitted holding pins of the pump. The hose can be easily mounted in the pump while conforming to the correct flow direction with respect to the suction side and the pressure side of the pump, and the pump hose offers uniform conveying characteristics.Type: GrantFiled: July 15, 1992Date of Patent: September 7, 1993Assignee: B. Braun Melsungen AGInventor: Reinhard Knuth
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Patent number: 5088522Abstract: A pump hose for a peristaltic pump consists of two arcuate portions that merge along kink lines so that the undeformed hose lumen has the cross-sectional shape of a convex lens. The joinings of the arcuate portions are joined by outwardly extending ribs. When the hose is pressed, only minor squeezing occurs at the joinings. The hose has a considerably improved squeezing and restoring behavior. The ribs prevent an excessive squeezing.Type: GrantFiled: March 21, 1990Date of Patent: February 18, 1992Assignee: B. Braun Melsungen AGInventors: Dieter Rath, Fredrich von der Haar, Hans-Josef Gerlach, Reinhard Knuth
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Patent number: 5047014Abstract: A medical pump device having a hose pump and a replaceable pump hose and provided with a reading means that reads a code mounted on the pump hose. The code corresponds to the deviation of the delivery volume of the individual hose from the set delivery volume. In dependence on the coding signals, the control signals for the pump drive are corrected so that defined delivery rates are obtained even with in wide hose tolerances.Type: GrantFiled: March 20, 1990Date of Patent: September 10, 1991Assignee: B. Braun Melsungen AGInventors: Wolfgang Mosebach, Rolf Heitmeier, Reinhard Knuth