Patents by Inventor Daniel F. Bischof

Daniel F. Bischof 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).

  • Patent number: 8870828
    Abstract: Medical needle assemblies incorporating a needle cover are provided. According to one aspect, the needle cover is integrally formed from a material that: (1) is sufficiently rigid to prevent bending of an underlying cannula, (2) is suitable for allowing a frangible portion thereof to be broken under pre-selected conditions, and/or (3) has a moisture vapor transmission rate sufficient for steam sterilization of a needle tip enclosed by the needle cover. According to another aspect, at least part of a cap portion and a hub portion of the needle cover are translucent. According to yet another aspect, the needle cover is provided with a wing having an enlarged rib suitable for gripping during separation of a cap portion from the remainder of the needle cover.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 28, 2014
    Assignee: Fenwal, Inc.
    Inventors: Richard L. West, Daniel R. Lynn, Mark B. Jones, Daniel F. Bischof
  • Patent number: 8323251
    Abstract: Needle covers are provided for medical needle assemblies having a base and a cannula. The needle cover includes hub and cap portions. The hub portion is adapted to be secured to the base. The cap portion is adapted to substantially enclose at least a distal end of the cannula when the hub portion is secured to the base. The cap portion includes at least one generally outwardly extending wing having an outer edge and an enlarged rib extending along only a portion of the outer edge of the wing and only in a direction substantially parallel to a central axis defined by the cap portion. The cap portion is separable from the hub portion upon application of a torsional force, with the rib of the wing being thicker than the portion of the wing radially inward of the outer edge to assist gripping during application of such force.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: December 4, 2012
    Assignee: Fenwal, Inc.
    Inventors: Richard L. West, Daniel R. Lynn, Mark B. Jones, Daniel F. Bischof
  • Patent number: 7824343
    Abstract: Methods and apparatus for collecting blood samples in vacuum sample tubes are disclosed. The samples, including the initial blood sample, are substantially free of excess air.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: November 2, 2010
    Assignee: Fenwal, Inc.
    Inventors: Jean-Marie Mathias, Bryan Blickhan, Stephanie Haldiman, Larry Servi, Jr., Jean-Claude Bernes, Daniel F. Bischof
  • Publication number: 20090198196
    Abstract: Medical needle assemblies incorporating a needle cover are provided. According to one aspect, the needle cover is integrally formed from a material that: (1) is sufficiently rigid to prevent bending of an underlying cannula, (2) is suitable for allowing a frangible portion thereof to be broken under pre-selected conditions, and/or (3) has a moisture vapor transmission rate sufficient for steam sterilization of a needle tip enclosed by the needle cover. According to another aspect, at least part of a cap portion and a hub portion of the needle cover are translucent. According to yet another aspect, the needle cover is provided with a wing having an enlarged rib suitable for gripping during separation of a cap portion from the remainder of the needle cover.
    Type: Application
    Filed: January 14, 2008
    Publication date: August 6, 2009
    Inventors: Richard L. West, Daniel R. Lynn, Mark B. Jones, Daniel F. Bischof
  • Publication number: 20090014395
    Abstract: Blood processing systems and methods establish on line communication between a container and a source of blood containing leukocytes and platelets, such as a human donor. The systems and methods create a centrifugal field between the source of blood and the container that separates from the blood an unfinished suspension of platelets having a first physiologic characteristic different than the desired physiologic characteristic. The systems and methods pump the unfinished platelet suspension outside the centrifugal field through a finishing device. The finishing device changes the first physiologic characteristic to the desired physiological characteristic, thereby creating the finished platelet suspension. The systems and methods convey the finished platelet suspension from the finishing device directly into the container. The systems and methods function without interrupting the on line communication between the container and the source of blood.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 15, 2009
    Inventor: Daniel F. Bischof
  • Patent number: 7374870
    Abstract: Systems and methods treat plasma carrying contaminants and cellular matter that are capable of entraining contaminants. The systems and methods separate cellular matter from the plasma by filtration, thereby removing contaminants entrained within the cellular matter. The system and methods add to the plasma a photoactive material. The systems and methods emit radiation at a selected wavelength into the plasma to activate the photoactive material and thereby eradicate the contaminant that is free of entrainment by cellular matter.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: May 20, 2008
    Assignee: Fenwal, Inc.
    Inventors: Robert E. Herman, John Chapman, Chong-Son Sun, Jean M Mathias, Daniel F. Bischof
  • Publication number: 20080108954
    Abstract: Flow controllers are provided for interconnecting a fluid source to two separate collection zones. The flow controllers include a body having a fluid inlet communicating with the source and two fluid outlets, each communicating with one of the collection zones. An actuator member received within a cavity of the body includes first and second flow paths. In a first position, the first flow path is aligned with the fluid inlet of the body to allow fluid communication with one of the fluid outlets and the associated collection zone. The actuator member is non-rotationally moved to a second position within the cavity to align the second flow path with the fluid inlet of the body, thereby halting flow through the first flow path and allowing fluid communication with the other collection zone. An optional safety feature prevents movement of the actuator member from the second position to the first position.
    Type: Application
    Filed: November 2, 2006
    Publication date: May 8, 2008
    Inventors: Jean-Marie Mathias, Richard L. West, Georges Rondeau, Joseph H. Bowman, Benjamin S. Grant, Daniel F. Bischof
  • Patent number: 7264608
    Abstract: Systems and methods manually process blood and blood components in sterile, closed environments, which further condition the blood components for subsequent pathogen inactivation processes. The systems and methods mate the manual collection of random donor platelet units with the creation of larger therapeutic doses of platelets targeted to undergo pathogen inactivation prior to long term storage and/or transfusion.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: September 4, 2007
    Assignee: Fenwal, Inc.
    Inventors: Daniel F. Bischof, Ying-Cheng Lo, Daniel Lynn, Bryan J Blickhan
  • Patent number: 6936413
    Abstract: Methods and systems for preparing blood products that are ready for treatment in established pathogen inactivation procedures are disclosed. The methods include providing a source of a blood component and combining the blood component with a synthetic medium in a selected ratio of the blood component to the synthetic media, whereby the resulting blood product is treatment-ready.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: August 30, 2005
    Assignee: Baxter International Inc.
    Inventors: Daniel F. Bischof, Ying-Cheng Lo
  • Patent number: 6872307
    Abstract: Blood processing systems and methods establish on line communication between a container and a source of blood containing leukocytes and platelets, such as a human donor. The systems and methods create a centrifugal field between the source of blood and the container that separates from the blood an unfinished suspension of platelets having a first physiologic characteristic different than the desired physiologic characteristic. The systems and methods pump the unfinished platelet suspension outside the centrifugal field through a finishing device. The finishing device changes the first physiologic characteristic to the desired physiological characteristic, thereby creating the finished platelet suspension. The systems and methods convey the finished platelet suspension from the finishing device directly into the container. The systems and methods function without interrupting the on line communication between the container and the source of blood.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: March 29, 2005
    Assignee: Baxter International Inc.
    Inventor: Daniel F. Bischof
  • Patent number: 6855489
    Abstract: Systems and methods treat plasma carrying contaminants and cellular matter that are capable of entraining contaminants. The systems and methods separate cellular matter from the plasma by filtration, thereby removing contaminants entrained within the cellular matter. The system and methods add to the plasma a photoactive material. The systems and methods emit radiation at a selected wavelength into the plasma to activate the photoactive material and thereby eradicate the contaminant that is free of entrainment by cellular matter.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: February 15, 2005
    Assignee: Baxter International Inc.
    Inventors: Robert E. Herman, John Chapman, Chong-Son Sun, Jean M. Mathias, Veronique Mayaudon, Serge de Gheldere, Daniel F. Bischof
  • Patent number: 6695805
    Abstract: Systems and methods treat plasma carrying contaminants and leukocytes that are capable of entraining contaminants. The systems and methods separate leukocytes from the plasma by filtration, thereby removing contaminants entrained within leukocytes. The systems and methods also add to the plasma a photoactive material and emit radiation at a selected wavelength into the plasma to activate the photoactive material and thereby eradicate the contaminant that is free of entrainment by leukocytes.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: February 24, 2004
    Assignee: Baxter International Inc.
    Inventors: Chong-Son Sun, John Chapman, Daniel F Bischof, Robert E Herman
  • Publication number: 20030205517
    Abstract: Blood processing systems and methods establish on line communication between a container and a source of blood containing leukocytes and platelets, such as a human donor. The systems and methods create a centrifugal field between the source of blood and the container that separates from the blood an unfinished suspension of platelets having a first physiologic characteristic different than the desired physiologic characteristic. The systems and methods pump the unfinished platelet suspension outside the centrifugal field through a finishing device. The finishing device changes the first physiologic characteristic to the desired physiological characteristic, thereby creating the finished platelet suspension. The systems and methods convey the finished platelet suspension from the finishing device directly into the container. The systems and methods function without interrupting the on line communication between the container and the source of blood.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 6, 2003
    Applicant: Baxter International Inc.
    Inventor: Daniel F. Bischof
  • Publication number: 20030146162
    Abstract: Apparatus, systems and methods are disclosed for treating a biological fluid with light. A disposable fluid processing set including integrally connected containers and tubing and a holder or organizer for receiving at least some of the containers and tubing are disclosed.
    Type: Application
    Filed: October 11, 2002
    Publication date: August 7, 2003
    Inventors: Peyton S. Metzel, Daniel F. Bischof, Joseph S. Moore, Yuanpang Samuel Ding, Robert E. Herman, Veronique Mayaudon, Gregory Soudant, Daniel Lecour, Yvon Briere, George D. Cimino, Derek J. Hei, James Laird, Mahmood Mohiuddin
  • Patent number: 6596179
    Abstract: Apparatus for withdrawing whole blood from a donor, separating the whole blood to obtain a target cell population and returning a selected one of either the target cell population or at least a portion of the whole blood remainder to the donor or patient. A disposable separation inset for use in association with a rotatable separation device of the apparatus may also be provided. The disposable inset may include a chamber for receiving a cell suspension that includes the target cell, a receptacle for containing particles having a binding site for selectively binding to the target cell and a means for introducing the particles into the chamber.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: July 22, 2003
    Assignee: Baxter International Inc.
    Inventors: Richard Giesler, John R. Chapman, Dale R. Ellis, Daniel F. Bischof
  • Publication number: 20030104349
    Abstract: Systems and methods manually process blood and blood components in sterile, closed environments, which further condition the blood components for subsequent pathogen inactivation processes. The systems and methods mate the manual collection of random donor platelet units with the creation of larger therapeutic doses of platelets targeted to undergo pathogen inactivation prior to long term storage and/or transfusion.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Applicant: Baxter International Inc.
    Inventors: Daniel F. Bischof, Ying-Cheng Lo, Daniel Lynn, Bryan J. Blickhan
  • Publication number: 20020043492
    Abstract: Blood processing systems and methods establish on line communication between a container and a source of blood containing leukocytes and platelets, such as a human donor. The systems and methods create a centrifugal field between the source of blood and the container that separates from the blood an unfinished suspension of platelets having a first physiologic characteristic different than the desired physiologic characteristic. The systems and methods pump the unfinished platelet suspension outside the centrifugal field through a finishing device. The finishing device changes the first physiologic characteristic to the desired physiological characteristic, thereby creating the finished platelet suspension. The systems and methods convey the finished platelet suspension from the finishing device directly into the container. The systems and methods function without interrupting the on line communication between the container and the source of blood.
    Type: Application
    Filed: December 19, 2001
    Publication date: April 18, 2002
    Applicant: Baxter International Inc.
    Inventor: Daniel F. Bischof
  • Patent number: 6361692
    Abstract: Blood processing systems and methods establish on line communication between a container and a source of blood containing leukocytes and platelets, such as a human donor. The systems and methods create a centrifugal field between the source of blood and the container that separates from the blood an unfinished suspension of platelets having a first physiologic characteristic different than the desired physiologic characteristic. The systems and methods pump the unfinished platelet suspension outside the centrifugal field through a finishing device. The finishing device changes the first physiologic characteristic to the desired physiological characteristic, thereby creating the finished platelet suspension. The systems and methods convey the finished platelet suspension from the finishing device directly into the container. The systems and methods function without interrupting the on line communication between the container and the source of blood.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: March 26, 2002
    Assignee: Baxter International Inc.
    Inventor: Daniel F. Bischof
  • Publication number: 20010009757
    Abstract: A method combining the techniques of immunoaffinity separation and continuous flow centrifugal separation is provided for selective separation of a nucleated heterogeneous cell population from a heterogeneous cell mixture. The heterogeneous cell mixture is intimately contacted to promote binding thereto by particles having attached a substance that actively binds to a specific desired type of cell out of the cell mixture. The particles are selected so that the sedimentation velocity of the particle/cell conjugate differs sufficiently from those of other cells in the cell mixture to allow its separation by means of a continuous flow cell separator.
    Type: Application
    Filed: February 16, 2001
    Publication date: July 26, 2001
    Inventors: Daniel F. Bischof, Richard Giesler, John R. Chapman, Dale R. Ellis
  • Patent number: 6251284
    Abstract: Blood separation systems and methods draw whole blood from a blood donor selected from a population of blood donors. The whole blood of the selected blood donor has a known hematocrit value that varies within the population of blood donors according to morphology of the selected blood donor. The systems and methods operate a pump in the inlet line to convey a volume of whole blood from the donor at a commanded flow rate for processing into plasma constituent and concentrated red blood cells. The systems and methods set the commanded flow rate to vary the volume of whole blood conveyed over time as a function of the known hematocrit value of the selected donor. The systems and methods obtain, after processing the whole blood volume, a targeted volume of concentrated red blood cells, which is substantially constant for the population of blood donors despite variances in known hematocrit values among the donors.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: June 26, 2001
    Assignee: Baxter International Inc.
    Inventors: Daniel F Bischof, Matthew E Likens, Richard P Goldhaber, Jose C Deniega, Daniel H Duff