Patents by Inventor Christopher J. Wegener

Christopher J. Wegener 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: 20200308532
    Abstract: Systems and methods for automated cell culturing are disclosed. The system includes a stand-alone device including a culturing vessel and an integrated controller for delivering fluids at pre-determined times and sensors for monitoring the conditions of the culturing environment. The sensors for monitoring the conditions are coupled to the controller.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: Christopher J. Wegener, Alaina Schlinker
  • Patent number: 10781001
    Abstract: A variety of fill options is provided for a cell processing system. Certain options relate to a filling system associated with the cell processing system, the filling system comprising one or more filling stations, each with at least one container that may receive product from a container associated with a cell processing system. Other options relate to a syringe assembly that receives a product from a container associated with a cell processing system.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: September 22, 2020
    Assignee: Fenwal, Inc.
    Inventors: Kyungyoon Min, Alexandra Salomon, Julie Griep, Christopher J. Wegener
  • Patent number: 10697447
    Abstract: A system is provided for pumping fluid, with the system including a fluid pump and a cassette. The pump includes a motor and a piston that is movable toward and away from a flexible diaphragm of the cassette. A linkage connects the motor and the piston to move the piston toward and away from the diaphragm. At least a portion of the piston or the diaphragm is magnetized, with the other having at least a portion that is magnetized or formed of a ferromagnetic material, thereby magnetically coupling the piston and the diaphragm such that movement of the piston moves the diaphragm into and out of a cassette cavity aligned with the diaphragm and piston. Movement of the diaphragm into and out of the cavity changes the effective volume of the cavity, which has the effect of drawing fluid into or forcing fluid out of the cavity.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: June 30, 2020
    Assignee: Fenwal, Inc.
    Inventors: Christopher J. Wegener, Mark Brierton
  • Publication number: 20200198814
    Abstract: A method for controlling the flow rate of a pneumatic syringe in a system that includes a disposable fluid circuit and reusable hardware configured to accept the disposable fluid circuit. The disposable fluid circuit includes one or more syringes, while the reusable hardware includes a syringe pump for each syringe of the disposable fluid circuit and a controller. The syringe pump includes a vacuum/pressure source for moving the piston within the syringe and a position detector for indicating the position of the piston within the syringe. The method controls several distinct phases of the process: break pressure targeting, glide control and vent control, and the method is the same regardless of whether a positive pressure or a vacuum is applied to the piston of the syringe. Preferably, a proportional-integral-derivative (“PID”) feedback loop is used for controlling the movement of the piston in the syringe.
    Type: Application
    Filed: November 13, 2019
    Publication date: June 25, 2020
    Inventors: Christopher J. Wegener, Robert Ciechowski
  • Publication number: 20200197942
    Abstract: A pneumatic driver for a syringe is provided. The syringe has an elongated barrel with a cap secured to the proximal end that has a through bore. A filter is secured to the cap interior of the barrel that covers an opening in the through bore interior of the barrel. The pneumatic driver includes a source of pressurized air; a support for receiving and locating the syringe; and a supply block configured to receive pressurized air from the source and having an outlet for delivery of pressurized air. The supply block is movable between a first position spaced apart from the cap of the syringe and a second position in contact with the cap with fluid communication being established between the outlet of the supply block and the through-bore in the cap.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 25, 2020
    Inventors: Christopher J. Wegener, Alexandra Salomon, Bret M. Olsen, Keith Grider, Tom Matusaitis
  • Publication number: 20200188915
    Abstract: A fluid processing cassette includes first and second covers, with an interior wall positioned between the covers. The interior wall includes a first surface facing the first cover and defining a portion of a plurality of macrofluidic channels. A second surface of the interior wall faces the second cover and defines a portion of a plurality of microfluidic channels. At least one opening defined in the interior wall provides fluid communication between at least one of the macrofluidic channels and at least one of the microfluidic channels. An additional interior wall may also be positioned between the covers, with each interior wall secured to a different one of the covers and to the other interior wall. The additional interior wall may be positioned between the first cover and the interior wall, with macrofluidic channels defined on each side of the additional interior wall.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 18, 2020
    Inventor: Christopher J. Wegener
  • Publication number: 20200188685
    Abstract: Methods and systems for treating a biological fluid with light are disclosed. The methods and systems include determining the light dose being delivered to a biological fluid and adjusting the duration of a treatment or the intensity of light emitted in the event of a detected light source outage.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Inventors: Greg Coultas, Christopher J. Wegener, Tanima Jahan Abedin
  • Patent number: 10654000
    Abstract: A network of cell processing systems including a plurality of cell processing instruments and a server computer. Each cell processing instrument includes a control circuit configured to operate the cell processing instrument according to a modifiable process parameter, a component of the cell processing instrument and a sensor configured to measure a characteristic of the component. The server computer is disposed remotely from the cell processing instruments, and is configured to transmit a request message for a value measured by the sensor, receive a response message based on the request message, and generate a notification message based on the response message.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 19, 2020
    Assignee: Fenwal, Inc.
    Inventors: Steven C. Binninger, Bret M. Olson, Alaina Schlinker, Christopher J. Wegener
  • Publication number: 20200009309
    Abstract: A cell processing system includes at least one processor connectable to a source container filled with a biological fluid, the processor including a spinning membrane configured to receive and separate target cells from the biological fluid, the target cells exiting at a first outlet, first and second containers selectively connected to the first outlet; and a magnet. The system also includes a controller configured to operate the spinning membrane to receive biological fluid and to direct the target cells to the first container, to pause to permit magnetic particles to be associated with the target cells in the first container, to operate the spinning membrane to receive the contents of the first container with the magnet applied to the target cells associated with the magnetic particles, to remove or deactivate the magnet, and to transfer the target cells to the second container.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: Christopher J. Wegener, Bret M. Olson, Alaina Schlinker, Steven Binninger, Avnie A. Kadakia, Kyle Thompson, Kyle Wolok, Melanie Hamilton
  • Publication number: 20200009312
    Abstract: A system for concentrating cells, wherein a syringe comprises a lumen and an axial end comprising a port and a radial end closed to liquid flow. A plunger divides the axial and radial ends, and the syringe is configured to hold a cellular suspension. A filter disposed at the radial end is configured to maintain sterility of the syringe. A cap comprises a vent disposed at the radial end. The plunger is configured to be actuated towards the axial end by air pressure being applied into the radial end and the plunger is configured to be actuated towards the radial end by a vacuum being applied into the radial end.
    Type: Application
    Filed: June 17, 2019
    Publication date: January 9, 2020
    Inventors: Kyungyoon Min, Christopher J. Wegener, Alexander Dodge
  • Patent number: 10525249
    Abstract: A device for connecting first and second medical fluid flow systems includes a linear movement carriage system that is positioned within a housing. The carriage system includes first and second connector holders configured to hold first and second connectors of the first and second medical fluid flow systems, respectively. A coupler holder is configured to hold a coupler and is positioned substantially between the first and second connector holders. The first and second connector holders and the coupler holder are relatively moveable between a separated configuration, where the first and second connectors and the coupler are located in relatively spaced apart positions, and a joined configuration, where the first and second connectors engage the coupler. An ultraviolet light source is positioned in the housing so as to irradiate first and second connectors and the coupler.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: January 7, 2020
    Assignee: Fenwal, Inc.
    Inventors: Christopher J. Wegener, Kyungyoon Min
  • Publication number: 20190351113
    Abstract: A system for processing fluids and filling a container with a product includes a disposable fluid circuit and reusable hardware configured to accept the disposable fluid circuit. The disposable fluid circuit includes a spinning membrane separator, first and second syringes, and a flow control cassette. The reusable hardware includes a drive coupled to the spinning membrane separator, first and second syringe pumps, the first and second syringes coupled to the first and second syringe pumps respectively, and a controller. The system also includes a syringe pump for filling low-volume containers, which syringe pump may be one of the first and second syringe pumps, or may be a third syringe pump. The syringe pump for filling low-volume containers may include a filtered vacuum/pressure source and a position detector.
    Type: Application
    Filed: May 14, 2019
    Publication date: November 21, 2019
    Inventors: Kyungyoon Min, Christopher J. Wegener
  • Publication number: 20190355468
    Abstract: A medical device verification system for an extracorporeal photopheresis procedure comprises a reusable irradiation device comprising a UV light source and a scanner. A fluid circuit comprises a disposable cell suspension container having a photo-reactive label comprising an identifiable code. The identifiable code is unobscured when the label in a first state and is obscured when the label is in a second state. The irradiation step is performed by irradiating the disposable cell suspension container for a predetermined period of time at or above the threshold UV irradiation level. A second input is received from the scanner during the irradiation step, the second input comprising identification of a state of the label. A response action is provided if the first input comprises identification of the second state of the label and/or if the second input comprises identification of the first state of the label.
    Type: Application
    Filed: April 24, 2019
    Publication date: November 21, 2019
    Inventors: Zahra R. Ali, Christopher J. Wegener, Tanima Jahan Abedin, Lan T. Nguyen, Brian C. Nelson, Nicole F. Young, Christian R. Bernard
  • Patent number: 10449283
    Abstract: A cell processing system includes at least one processor connectable to a source container filled with a biological fluid, the at least one processor including a spinning membrane configured to receive and separate target cells from the biological fluid, the target cells exiting at a first outlet, one or more containers selectively connected to the first outlet; and, and a magnet. The system also includes a controller coupled to the at least one processor and configured to operate the spinning membrane to receive biological fluid from the source container and to direct the target cells to one of the one or more containers, to pause to permit magnetic particles to be associated with the target cells, and to operate the spinning membrane to receive the contents of one of the one or more containers with the magnet applied to the target cells associated with the magnetic particles.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 22, 2019
    Assignee: Fenwal, Inc.
    Inventors: Christopher J. Wegener, Bret M. Olson, Alaina Schlinker, Steven Binninger, Avnie A. Kadakia, Kyle Thompson, Kyle Wolok, Melanie Hamilton
  • Patent number: 10400216
    Abstract: Systems and methods for the washing of biological fluid/biological cells are disclosed. The method provides for the automated dilution of the cell feed during the cell washing procedure using a separator in which the separator has a predetermined maximum output concentration for the biological cells that are being washed. The method further includes determining the concentration ratio of the biological cells to be washed in the washing procedure and determining a maximum input concentration as a function of the maximum output concentration and the concentration ratio. Wash solution is then added to dilute said biological cells so that the maximum input concentration of the diluted biological cells entering the separator is not exceeded.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: September 3, 2019
    Assignee: Fenwal, Inc.
    Inventors: Christopher J. Wegener, Daniel R. Boggs, Bret M. Olson
  • Publication number: 20190192844
    Abstract: A sterile tube connector for a fluid circuit system comprising a housing. A first opening is configured to receive a first length of tubing in communication with a first chamber. A second opening is configured for communicating with the first chamber when the tube connector is in an open configuration but not in a closed configuration. The second opening is configured to reversibly engage a third opening to form a second chamber. The third opening is configured for communicating with a second length of tubing. A first portion of the housing forming the first opening comprises a material at least partially permeable to a sterilization energy source for sterilizing contents of the second chamber.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Inventors: Christopher J. Wegener, Mark Brierton
  • Patent number: 10329530
    Abstract: A fluid circuit for cell washing is provided that comprises a spinning membrane separator and a fluid management system comprising a cassette that defines the fluid pathways, and including internally mechanical valving, pressure sensing and air sensing for controlling flow through the fluid pathways, thus minimizing the volume of the fluid circuit. Additionally, the fluid circuit comprises syringes that are acted on by syringe pumps associated with the hardware component of the system to provide pressure for moving fluid through the circuit. Preferably, the syringes are connected directly to the cassette, or formed integrally within the cassette housing, thus further minimizing the volume of the fluid circuit.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: June 25, 2019
    Assignee: Fenwal, Inc.
    Inventor: Christopher J. Wegener
  • Publication number: 20190184087
    Abstract: A method for prophylaxis or treatment of a graft's rejection of a recipient, driven and adjusted by a microprocessor-based controller. Provided is a fluid circuit comprising a first container configured to receive a transplant component and a second container configured to receive an apoptotic component. Provided is a separator configured to associate with the fluid circuit and separate whole blood into a red blood cell component, a plasma component, and a white blood cell component. Whole blood is directed into the fluid circuit and the separator. The whole blood is separated into the red blood cell component, the plasma component, and the white blood cell component. A first portion comprising the transplant component of the white blood cell component is directed to the first container. A second portion of the white blood cell component is directed to the second container and the second portion is rendered apoptotic.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 20, 2019
    Inventors: Katherine N. Radwanski, Tanima Jahan Abedin, Christopher J. Wegener
  • Patent number: 10300189
    Abstract: A system and method are provided for controlling fouling and complement protein activation during separation of plasma from whole blood using a spinning membrane separator. The separator includes a pair of relatively rotating surfaces spaced apart to define a gap therebetween, with at least one of the surfaces comprising a membrane that allows plasma to pass therethrough but substantially prevents the passage of red cells. In accordance with the method, the membrane material and membrane fabrication technique are selected so as that the resulting membrane both resists fouling and complement protein activation. In a specific embodiment, the membrane is has a smooth surface and substantially linear pores. The pores have a nominal diameter of less than 2 microns (so as to exclude platelets) and preferably a diameter of from 0.6 microns to 0.8 microns, as may be obtained by use of track-etching.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: May 28, 2019
    Assignee: Fenwal, Inc.
    Inventors: Benjamin E. Kusters, Kyungyoon Min, Christopher J. Wegener, Daniel R. Boggs
  • Patent number: 10274495
    Abstract: A cell processing system includes a first processor connectable to a source container filled with a biological fluid, a second processor, and a controller coupled to the processors. The first processor includes a separator configured to separate the biological fluid into at least two streams of material, and a first container configured to receive one of the streams. The second processor includes a magnetic separator configured to select target cells, the target cells being associated with magnetic particles, a second, pass-through container associated with the magnetic separator, the second container connected at a first end to the first container, and a third container connected to a second end of the pass-through container. One of the processors includes at least one pump configured to transfer material between the separator and the first container, and between the first container and the second container.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: April 30, 2019
    Assignee: Fenwal, Inc.
    Inventors: Christopher J. Wegener, Kyungyoon Min