Patents by Inventor Christopher S. McDowell

Christopher S. McDowell 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).

  • Publication number: 20240123128
    Abstract: A fluid treatment plant has a filter module including at least a first filter and a second filter connected in series and connectable to a supply of fluid. A pump is fluidly connected to the filter module and a controller with a fluid quality sensor is connected to detect a quality of the fluid between the first filter and the second filter. A filter module detector is connected to the controller configured to uniquely detect a filter module connected to the pump, and the controller is controls the pump responsively to a signal from the fluid quality sensor and the module detector. The controller is configured to continue pumping based on output of the quality sensor and/or based on output from the filter module detector.
    Type: Application
    Filed: December 27, 2023
    Publication date: April 18, 2024
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Goetz FRIEDERICHS, Brian C. GREEN, Christopher S. MCDOWELL, James M. BRUGGER
  • Patent number: 11896750
    Abstract: A fluid treatment plant has a filter module including at least a first filter and a second filter connected in series and connectable to a supply of fluid. A pump is fluidly connected to the filter module and a controller with a fluid quality sensor is connected to detect a quality of the fluid between the first filter and the second filter. A filter module detector is connected to the controller configured to uniquely detect a filter module connected to the pump, and the controller is controls the pump responsively to a signal from the fluid quality sensor and the module detector. The controller is configured to continue pumping based on output of the quality sensor and/or based on output from the filter module detector.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: February 13, 2024
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Goetz Friederichs, Brian C. Green, Christopher S. Mcdowell, James M. Brugger
  • Patent number: 11844894
    Abstract: A tubing set for a blood processing system includes a first connector, a first tube, and a second tube. The first connector is configured to connect to a separation device within the blood processing system, and has a first inlet configured to be fluidly connected to an outlet of the separation device. The first connector also has an outlet and a second inlet. The first tube fluidly connects to the outlet and fluidly connects the separation device and a blood component storage container. The second tube is fluidly connected to the second inlet and fluidly connects the separation device and a saline storage container. The second tube may include a second connector that connects to the saline storage container.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: December 19, 2023
    Assignee: Haemonetics Corporation
    Inventor: Christopher S. McDowell
  • Patent number: 11648179
    Abstract: A top for a plasma storage container includes a top body that defines the structure of the top and seals an opening of the plasma storage container. The top also includes a first opening and a vent opening extending through the top body. A valve mechanism is located at least partially within the top body and includes an aperture therethrough. The aperture opens upon connection of a blunt cannula to provide access to the interior of the plasma storage container. The top also includes a vent filter. The vent filter allows air to vent through the vent opening during plasma collection.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 16, 2023
    Assignee: Haemonetics Corporation
    Inventors: Christopher S. McDowell, Matthew J. Murphy
  • Patent number: 11559464
    Abstract: A top for a plasma storage container includes a top body that defines the structure of the top and seals an opening of the plasma storage container. The top also includes a first opening and a vent opening extending through the top body. A septum is located at least partially within the first opening and includes an aperture therethrough. The septum allows a blunt cannula to pass through the aperture to access the interior of the plasma storage container. The top also includes a hydrophobic membrane located on underside of the top body. The membrane covers the vent opening and allows air to vent through the vent opening during plasma collection.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: January 24, 2023
    Assignee: Haemonetics Corporation
    Inventor: Christopher S. McDowell
  • Patent number: 11446417
    Abstract: A treatment system for performing a treatment on a patient may include a treatment fluid preparation device having a pump connected by a fluid channel to a reservoir of a source fluid, the pump conveying the source fluid from the reservoir, through a filter, and combining the source fluid with a concentrate by pumping the source fluid with the concentrate to form a treatment fluid in a batch container. The treatment fluid preparation device may have a controller that controls a heater, the pump, and a memory. The controller starts the heater to warm the treatment fluid in the batch container at a time that is responsive to the treatment time stored in the memory. The controller also detects a pressure property of the filter to determine its integrity and outputs an indication of a failed batch if the pressure property indicates the integrity of the filter is insufficient.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 20, 2022
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Christopher S. McDowell, Goetz Friederichs
  • Patent number: 11135349
    Abstract: A tubing set for a blood processing system includes a first connector, a first tube, and a second tube. The first connector is configured to connect to a separation device within the blood processing system, and has a first inlet configured to be fluidly connected to an outlet of the separation device. The first connector also has an outlet and a second inlet. The first tube fluidly connects to the outlet and fluidly connects the separation device and a blood component storage container. The second tube is fluidly connected to the second inlet and fluidly connects the separation device and a saline storage container. The second tube may include a second connector that connects to the saline storage container.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: October 5, 2021
    Assignee: Haemonetics Corporation
    Inventor: Christopher S. McDowell
  • Publication number: 20210268164
    Abstract: A tubing set for a blood processing system includes a first connector, a first tube, and a second tube. The first connector is configured to connect to a separation device within the blood processing system, and has a first inlet configured to be fluidly connected to an outlet of the separation device. The first connector also has an outlet and a second inlet. The first tube fluidly connects to the outlet and fluidly connects the separation device and a blood component storage container. The second tube is fluidly connected to the second inlet and fluidly connects the separation device and a saline storage container. The second tube may include a second connector that connects to the saline storage container.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 2, 2021
    Inventor: Christopher S. McDowell
  • Publication number: 20210205519
    Abstract: A fluid treatment plant has a filter module including at least a first filter and a second filter connected in series and connectable to a supply of fluid. A pump is fluidly connected to the filter module and a controller with a fluid quality sensor is connected to detect a quality of the fluid between the first filter and the second filter. A filter module detector is connected to the controller configured to uniquely detect a filter module connected to the pump, and the controller is controls the pump responsively to a signal from the fluid quality sensor and the module detector. The controller is configured to continue pumping based on output of the quality sensor and/or based on output from the filter module detector.
    Type: Application
    Filed: March 25, 2021
    Publication date: July 8, 2021
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Goetz FRIEDERICHS, Brian C. GREEN, Christopher S. MCDOWELL, James M. BRUGGER
  • Patent number: 10973969
    Abstract: A fluid preparation system has a sealed sterilized fluid circuit with a sealed sterilized container with a conductivity sensor in communication with an interior of said container. Further, at least one sealed connector is adapted for adding fluid to said container, and at least one sealed connector is adapted for removing fluid from said container. The conductivity sensor is contained in a test line in communication with said interior and is adapted to be connected to a source of suction thereby to draw a sample of contents of said container. Furthermore, the test line may have a check valve to prevent ingress of contaminants into said container, and the sealed connector is adapted for adding fluid to said container and may have an inline sterile filter. Furthermore, the system may have a controller that controls pumping actuators.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: April 13, 2021
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Goetz Friederichs, Brian C. Green, Christopher S. McDowell, James M. Brugger
  • Publication number: 20190307941
    Abstract: A tubing set for a blood processing system includes a first connector, a first tube, and a second tube. The first connector is configured to connect to a separation device within the blood processing system, and has a first inlet configured to be fluidly connected to an outlet of the separation device. The first connector also has an outlet and a second inlet. The first tube fluidly connects to the outlet and fluidly connects the separation device and a blood component storage container. The second tube is fluidly connected to the second inlet and fluidly connects the separation device and a saline storage container. The second tube may include a second connector that connects to the saline storage container.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 10, 2019
    Applicant: Haemonetics Corporation
    Inventor: Christopher S. McDowell
  • Patent number: 10420871
    Abstract: A fluid preparation system has a sealed sterilized fluid circuit with a sealed sterilized container with a conductivity sensor in communication with an interior of said container. Further, at least one sealed connector is adapted for adding fluid to said container, and at least one sealed connector is adapted for removing fluid from said container. The conductivity sensor is contained in a test line in communication with said interior and is adapted to be connected to a source of suction thereby to draw a sample of contents of said container. Furthermore, the test line may have a check valve to prevent ingress of contaminants into said container, and the sealed connector is adapted for adding fluid to said container and may have an inline sterile filter. Furthermore, the system may have a controller that controls pumping actuators.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: September 24, 2019
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Goetz Friederichs, Brian C. Green, Christopher S. McDowell, James M. Brugger
  • Publication number: 20190275226
    Abstract: A fluid preparation system has a sealed sterilized fluid circuit with a sealed sterilized container with a conductivity sensor in communication with an interior of said container. Further, at least one sealed connector is adapted for adding fluid to said container, and at least one sealed connector is adapted for removing fluid from said container. The conductivity sensor is contained in a test line in communication with said interior and is adapted to be connected to a source of suction thereby to draw a sample of contents of said container. Furthermore, the test line may have a check valve to prevent ingress of contaminants into said container, and the sealed connector is adapted for adding fluid to said container and may have an inline sterile filter. Furthermore, the system may have a controller that controls pumping actuators.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Goetz FRIEDERICHS, Brian C. GREEN, Christopher S. MCDOWELL, James M. BRUGGER
  • Publication number: 20190151200
    Abstract: A top for a plasma storage container includes a top body that defines the structure of the top and seals an opening of the plasma storage container. The top also includes a first opening and a vent opening extending through the top body. A septum is located at least partially within the first opening and includes an aperture therethrough. The septum allows a blunt cannula to pass through the aperture to access the interior of the plasma storage container. The top also includes a hydrophobic membrane located on underside of the top body. The membrane covers the vent opening and allows air to vent through the vent opening during plasma collection.
    Type: Application
    Filed: May 16, 2017
    Publication date: May 23, 2019
    Applicant: Haemonetics Corporation
    Inventor: Christopher S. McDowell
  • Publication number: 20190076589
    Abstract: A treatment system for performing a treatment on a patient may include a treatment fluid preparation device having a pump connected by a fluid channel to a reservoir of a source fluid, the pump conveying the source fluid from the reservoir, through a filter, and combining the source fluid with a concentrate by pumping the source fluid with the concentrate to form a treatment fluid in a batch container. The treatment fluid preparation device may have a controller that controls a heater, the pump, and a memory. The controller starts the heater to warm the treatment fluid in the batch container at a time that is responsive to the treatment time stored in the memory. The controller also detects a pressure property of the filter to determine its integrity and outputs an indication of a failed batch if the pressure property indicates the integrity of the filter is insufficient.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 14, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Christopher S. MCDOWELL, Goetz FRIEDERICHS
  • Publication number: 20190046406
    Abstract: A top for a plasma storage container includes a top body that defines the structure of the top and seals an opening of the plasma storage container. The top also includes a first opening and a vent opening extending through the top body. A valve mechanism is located at least partially within the top body and includes an aperture therethrough. The aperture opens upon connection of a blunt cannula to provide access to the interior of the plasma storage container. The top also includes a vent filter. The vent filter allows air to vent through the vent opening during plasma collection.
    Type: Application
    Filed: October 16, 2018
    Publication date: February 14, 2019
    Inventors: Christopher S. McDowell, Matthew J. Murphy
  • Publication number: 20190046713
    Abstract: A treatment system for performing a treatment on a patient may include a treatment fluid preparation device having a pump connected by a fluid channel to a reservoir of a source fluid, the pump conveying the source fluid from the reservoir, through a filter, and combining the source fluid with a concentrate by pumping the source fluid with the concentrate to form a treatment fluid in a batch container. The treatment fluid preparation device may have a controller that controls a heater, the pump, and a memory. The controller starts the heater to warm the treatment fluid in the batch container at a time that is responsive to the treatment time stored in the memory. The controller also detects a pressure property of the filter to determine its integrity and outputs an indication of a failed batch if the pressure property indicates the integrity of the filter is insufficient.
    Type: Application
    Filed: October 18, 2018
    Publication date: February 14, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Christopher S. MCDOWELL, Goetz FRIEDERICHS
  • Patent number: 10130746
    Abstract: Systems, methods, and devices for preparation of water for various uses including blood treatment are described. In embodiments, fluid is passed through a first filtration step which is effective for creating purified water and a pair of ultrafilters placed at the outlet. The ultrafilters are separated by an intervening flow path to prevent grow-through from the outlet end upstream. In embodiments, a recirculation path with an air removing filter helps to eliminate air from the ultimate product water.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: November 20, 2018
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Christopher S. McDowell, Goetz Friederichs
  • Patent number: 9928457
    Abstract: A method for securing an RFID tag to an object includes providing an RFID tag and placing the RFID tag on the object. The RFID tag has an RFID chip and an antenna electrically connected to the RFID chip. The RFID tag also has a first and second opening extending through the RFID tag. The object has a first and second protrusion extending from a surface of the object. The first and second protrusions extend through the first and second openings when the RFID tag is placed on the object. The method also includes melting the first and second protrusions to create a single integral boss that covers at least a portion of the RFID tag and secures the RFID tag to the object. The chip may be nonfunctional prior to the securement process.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: March 27, 2018
    Assignee: Haemonetics Corporation
    Inventor: Christopher S. McDowell
  • Publication number: 20170266360
    Abstract: A fluid preparation system has a sealed sterilized fluid circuit with a sealed sterilized container with a conductivity sensor in communication with an interior of said container. Further, at least one sealed connector is adapted for adding fluid to said container, and at least one sealed connector is adapted for removing fluid from said container. The conductivity sensor is contained in a test line in communication with said interior and is adapted to be connected to a source of suction thereby to draw a sample of contents of said container. Furthermore, the test line may have a check valve to prevent ingress of contaminants into said container, and the sealed connector is adapted for adding fluid to said container and may have an inline sterile filter. Furthermore, the system may have a controller that controls pumping actuators.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Applicant: NXSTAGE MEDICAL, INC.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Goetz FRIEDERICHS, Brian C. GREEN, Christopher S. MCDOWELL, James M. BRUGGER