Patents Assigned to Maquet Cardiopulmonary AG
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Publication number: 20180110913Abstract: A fluid flow sensing and bubble detecting apparatus includes a housing comprising a channel configured to receive a tube through which fluid flows; a sensor apparatus disposed within the housing, which includes a first sensor operable to measure flow rate of fluid and to detect bubbles in flowing fluid; and a temperature sensor operable to detect temperature of the flowing fluid; and a processor connected to receive fluid flow rate data obtained by the first sensor, to receive bubble detection data obtained by the first sensor, and to receive fluid temperature data obtained by the temperature sensor, wherein when a tube through which fluid flows is disposed in the channel of the housing, the first sensor measures the flow rate of the flowing fluid and detects bubbles therein, and the temperature sensor measures the temperature of the flowing fluid, and the processor calculates in a short period of time a fluid flow rate corrected for temperature.Type: ApplicationFiled: February 26, 2016Publication date: April 26, 2018Applicant: Maquet Cardiopulmonary AGInventors: Christian LODERER, Wesley Scott ASHTON
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Patent number: 9259521Abstract: In a device for the automatic control of blood pumps, an optimization of the blood flow is achieved by periodic speed interventions and flow changes thereby occurring, using a formed differential variable and a control algorithm. In addition, the location of possible flow resistances on the venous or arterial side can be ascertained.Type: GrantFiled: March 17, 2014Date of Patent: February 16, 2016Assignee: MAQUET CARDIOPULMONARY AGInventor: Antoine P. Simons
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Patent number: 9226999Abstract: The present invention relates to methods for coating at least one surface of a medical device for improving the hemocompatibility of said surface. Further, the invention relates to medical devices comprising surfaces, coated with a coating composition containing a nonionic ester formed from an acyclic C3-C6(OH)3-6 polyol and from at least three C12-C26 fatty acids, and further includes at least one hydrophilic group.Type: GrantFiled: May 25, 2012Date of Patent: January 5, 2016Assignee: MAQUET CARDIOPULMONARY AGInventors: Mathias Nakel, Birgit Eisenlohr
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Publication number: 20140228815Abstract: The present invention relates to a connector system for use in connecting conduits together, such as those used with an extracorporeal blood circulation system. The system has a male and female connector and a seal. The seal is operatively associated with the male and female connectors and forms a fluid tight connection between the male and female connectors. An inner surface of the seal and the inner surfaces of the first and second coupling ends form a continuous and smooth transitional surface.Type: ApplicationFiled: April 7, 2014Publication date: August 14, 2014Applicant: MAQUET CARDIOPULMONARY AGInventors: Ulrich Haag, Ralf Engelhardt
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Publication number: 20140200391Abstract: In a device for the automatic control of blood pumps, an optimization of the blood flow is achieved by periodic speed interventions and flow changes thereby occurring, using a formed differential variable and a control algorithm. In addition, the location of possible flow resistances on the venous or arterial side can be ascertained.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Applicant: MAQUET CARDIOPULMONARY AGInventor: Antoine P. Simons
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Patent number: 8672868Abstract: In a method for the automatic control of blood pumps, an optimization of the blood flow is achieved by periodic speed interventions and flow changes thereby occurring, using a formed differential variable and a control algorithm. In addition, the location of possible flow resistances on the venous or arterial side can be ascertained.Type: GrantFiled: February 7, 2008Date of Patent: March 18, 2014Assignee: Maquet Cardiopulmonary AGInventor: Antoine P. Simons
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Patent number: 8187622Abstract: The present invention relates to methods for coating at least one surface of a medical device for improving the hemocompatibility of said surface. Further, the invention relates to medical devices comprising surfaces, coated with a coating composition containing a nonionic ester formed from an acyclic C3-C6(OH)3-6 polyol and from at least three C12-C26 fatty acids, and further includes at least one hydrophilic group.Type: GrantFiled: February 8, 2008Date of Patent: May 29, 2012Assignee: Maquet Cardiopulmonary AGInventors: Mathias Nakel, Birgit Eisenlohr
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Patent number: 8133195Abstract: In a device for handling blood in extracorporeal blood circulation that has at least one oxygenator, one heat exchanger, and one blood filter, the inlets and outlets in the oxygenator/heat exchanger unit are embodied such that a blood flow cross section of A?80 mm2, preferably A?120 mm2, is assured. The device can also be operated in an isolated form as a single structural part, which takes on the functions of an oxygenator and a heat exchanger with a blood filter. If a pump is provided in the device, then the pump drive can be removed as needed.Type: GrantFiled: July 3, 2006Date of Patent: March 13, 2012Assignee: Maquet Cardiopulmonary AGInventors: Rainer Blicke, Ulrich Haag, Enno-Utz Kueper
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Patent number: 7798985Abstract: In a venous bubble trap (1), having a housing (2) to which fluid, in particular blood, can be delivered essentially tangentially via a fluid inlet (8) and from which fluid can be carried away via a fluid outlet (10), and having a filter device (3) located in the interior of the housing (2), the filter device (3) divides the housing interior into a prefilter region (5) and a postfilter region (6), and the postfilter region (6) surrounds the prefilter region (5) in at least some portions. As a result, air is reliably removed from the fluid.Type: GrantFiled: March 7, 2006Date of Patent: September 21, 2010Assignee: Maquet Cardiopulmonary AGInventors: Ralf Engelhardt, Enno-Utz Kueper, Ulrich Haag
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Publication number: 20090275875Abstract: The task was to create a multifunctional system for the extracorporeal circulation (ECC) for a heart-lung bypass, which primarily makes use of the advantages of a minimized ECC system, but which in the case of need at any time can also be used universally and at low risk as another closed and open ECC system. Besides, it shall provide the option of an automatic negative pressure and volume compensation when being used as minimized ECC system. According to the invention, a special reservoir (48), particularly a venous cardiotomy reservoir, for blood and/or priming solution is presented, which consists of a form-stable bottom part (57), wherein a level sensor (57) can be integrated, and a flexible part (56) located on top of it, which seeks to increase its volumetric capacity. The equipment is used in the artificial circulation of patients by the use of a heart-lung machine.Type: ApplicationFiled: June 16, 2006Publication date: November 5, 2009Applicant: MAQUET CARDIOPULMONARY AGInventors: Kai Liebing, Thorsten Wahlers, Mirko Kaluza
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Patent number: D669185Type: GrantFiled: November 12, 2009Date of Patent: October 16, 2012Assignee: Maquet Cardiopulmonary AGInventor: Jürgen Reiner Schmid
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Patent number: D714947Type: GrantFiled: May 1, 2012Date of Patent: October 7, 2014Assignee: Maquet Cardiopulmonary AGInventor: Jurgen Reiner Schmid
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Patent number: D724231Type: GrantFiled: May 1, 2012Date of Patent: March 10, 2015Assignee: Maquet Cardiopulmonary AGInventors: Daniel Medart, Ulrich Haag
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Patent number: D785802Type: GrantFiled: May 13, 2015Date of Patent: May 2, 2017Assignee: MAQUET CARDIOPULMONARY AGInventors: Aidan Hyde, Daniel Medart, Daniel A. Walters