Patents Assigned to Maquet Cardiopulmonary AG
  • Publication number: 20180110913
    Abstract: 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: Application
    Filed: February 26, 2016
    Publication date: April 26, 2018
    Applicant: Maquet Cardiopulmonary AG
    Inventors: Christian LODERER, Wesley Scott ASHTON
  • Patent number: 9259521
    Abstract: 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: Grant
    Filed: March 17, 2014
    Date of Patent: February 16, 2016
    Assignee: MAQUET CARDIOPULMONARY AG
    Inventor: Antoine P. Simons
  • Patent number: 9226999
    Abstract: 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: Grant
    Filed: May 25, 2012
    Date of Patent: January 5, 2016
    Assignee: MAQUET CARDIOPULMONARY AG
    Inventors: Mathias Nakel, Birgit Eisenlohr
  • Publication number: 20140228815
    Abstract: 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: Application
    Filed: April 7, 2014
    Publication date: August 14, 2014
    Applicant: MAQUET CARDIOPULMONARY AG
    Inventors: Ulrich Haag, Ralf Engelhardt
  • Publication number: 20140200391
    Abstract: 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: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: MAQUET CARDIOPULMONARY AG
    Inventor: Antoine P. Simons
  • Patent number: 8672868
    Abstract: 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: Grant
    Filed: February 7, 2008
    Date of Patent: March 18, 2014
    Assignee: Maquet Cardiopulmonary AG
    Inventor: Antoine P. Simons
  • Patent number: 8187622
    Abstract: 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: Grant
    Filed: February 8, 2008
    Date of Patent: May 29, 2012
    Assignee: Maquet Cardiopulmonary AG
    Inventors: Mathias Nakel, Birgit Eisenlohr
  • Patent number: 8133195
    Abstract: 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: Grant
    Filed: July 3, 2006
    Date of Patent: March 13, 2012
    Assignee: Maquet Cardiopulmonary AG
    Inventors: Rainer Blicke, Ulrich Haag, Enno-Utz Kueper
  • Patent number: 7798985
    Abstract: 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: Grant
    Filed: March 7, 2006
    Date of Patent: September 21, 2010
    Assignee: Maquet Cardiopulmonary AG
    Inventors: Ralf Engelhardt, Enno-Utz Kueper, Ulrich Haag
  • Publication number: 20090275875
    Abstract: 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: Application
    Filed: June 16, 2006
    Publication date: November 5, 2009
    Applicant: MAQUET CARDIOPULMONARY AG
    Inventors: Kai Liebing, Thorsten Wahlers, Mirko Kaluza
  • Patent number: D669185
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: October 16, 2012
    Assignee: Maquet Cardiopulmonary AG
    Inventor: J├╝rgen Reiner Schmid
  • Patent number: D714947
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: October 7, 2014
    Assignee: Maquet Cardiopulmonary AG
    Inventor: Jurgen Reiner Schmid
  • Patent number: D724231
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: March 10, 2015
    Assignee: Maquet Cardiopulmonary AG
    Inventors: Daniel Medart, Ulrich Haag
  • Patent number: D785802
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: May 2, 2017
    Assignee: MAQUET CARDIOPULMONARY AG
    Inventors: Aidan Hyde, Daniel Medart, Daniel A. Walters