Patents by Inventor Ralph H. Schriver

Ralph H. Schriver 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: 20090182274
    Abstract: A syringe includes a cylindrical body having a distal end and a proximal end, an injection section at the distal end and an expansion section at the proximal end, the injection section and the expansion section being connected by a cylindrical center section of relatively uniform outer diameter. The injection section includes a conical portion and an injection neck, the conical portion including an alignment flange extending outward from at least a portion of the conical portion. The syringe further includes a plunger movably received in the body and having a coupling end with a pair of flexible coupling members defining a slot therebetween for engaging a drive piston of an injector, the slot being substantially aligned with the alignment flange such that the alignment flange provides an indication of the orientation of the slot, the plunger seated for storage in the expansion section.
    Type: Application
    Filed: March 23, 2009
    Publication date: July 16, 2009
    Applicant: MEDRAD, Inc.
    Inventors: Ralph H. Schriver, Michael A. Spohn, Thomas P. Joyce, Herbert M. Grubic, John A. Haury
  • Publication number: 20090177155
    Abstract: The fluid injection apparatus for use with a syringe includes an injector and a pressure jacket assembly associated with the injector. The injector includes a housing defining a central opening and a drive piston extendable through the central opening for imparting motive forces to a syringe plunger disposed within the syringe. The pressure jacket assembly includes a pressure jacket and at least one support arm associated with and extending outward from the housing. A syringe retaining member is attached to the at least one support arm. The syringe-retaining member defines a syringe receiving slot for receiving at least a portion of the syringe. A light source is located on the support arm and faces the pressure jacket for illuminating the syringe.
    Type: Application
    Filed: March 18, 2009
    Publication date: July 9, 2009
    Applicant: MEDRAD, INC.
    Inventors: Ralph H. Schriver, Michael A. Spohn, Thomas P. Joyce, Richard G. Critchlow, Johan A. Haury, Herbert M. Grubic, Mark Paul Jongewaard
  • Patent number: 7549977
    Abstract: The fluid injection apparatus for use with a syringe includes an injector and a pressure jacket assembly associated with the injector. The injector includes a housing defining a central opening and a drive piston extendable through the central opening for imparting motive forces to a syringe plunger disposed within the syringe. The pressure jacket assembly includes a pressure jacket and at least one support arm associated with and extending outward from the housing. A syringe retaining member is attached to the at least one support arm. The syringe-retaining member defines a syringe receiving slot for receiving at least a portion of the syringe. A light source is located on the support arm and faces the pressure jacket for illuminating the syringe. The syringe includes an alignment flange defining a bulged air bubble viewing window (see A). The alignment flange is used to properly orient the syringe in the pressure jacket.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 23, 2009
    Assignee: Medrad, Inc.
    Inventors: Ralph H. Schriver, Michael A. Spohn, Thomas P. Joyce, Richard G. Critchlow, Herbert M. Grubic, Mark Paul Jongewaard
  • Publication number: 20090112164
    Abstract: A system and method for mixing and delivering fluids such as contrast media and saline is disclosed including at least two fluid sources, a pump, a joining fluid path connecting the at least two fluid sources to an inlet to the pump, and a valve device in the fluid path upstream of the pump. The valve device includes an actuator adapted to restrict flow in at least one of respective fluid lines connecting the at least two fluid sources to the pump inlet. A patient interface device may be associated with an outlet of the pump. The valve device actuator is generally adapted to restrict the flow in at least one of the respective fluid lines such that an incremental positional change in valve device actuator position provides a substantially linear change in fluid mixture ratio of the fluids from the at least two fluid sources to the pump inlet.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 30, 2009
    Applicant: MEDRAD, INC.
    Inventors: David M. Reilly, John F. Kalafut, Ralph H. Schriver
  • Patent number: 7361156
    Abstract: The fluid injection apparatus for use with the syringe includes an injector and a pressure jacket assembly associated with the injector. The injector includes a housing defining a central opening and a drive piston extendable through the central opening for imparting motive forces to a syringe plunger disposed within the syringe. The pressure jacket assembly includes a pressure jacket and at least one locking member pivotally associated with the pressure jacket. The at least one locking member is movable between an engaged position preventing removal of the syringe from the pressure jacket and a disengaged position allowing insertion and removal of the syringe into the pressure jacket.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: April 22, 2008
    Assignee: MEDRAD, Inc.
    Inventors: Thomas P. Joyce, Ralph H. Schriver, Michael A. Spohn, Salvatore J. Dedola
  • Publication number: 20040254533
    Abstract: The fluid injection apparatus is adapted for use with a syringe and includes an injector and a pressure jacket associated with the injector. The injector includes a housing defining an opening for a drive piston extendable from the housing. The pressure jacket secures the syringe during an injection procedure. The pressure jacket has a distal end defining a syringe receiving opening for receiving the syringe, and a proximal end associated with the housing and generally aligned with the opening. The apparatus includes a syringe sensor adapted for engagement by the syringe when loaded into the pressure jacket. The housing may have an engagement tab adapted to engage an engagement recess in the pressure jacket to removably engage the pressure jacket with the housing. The apparatus may have one or more light sources associated with the housing for illuminating the syringe received in the pressure jacket.
    Type: Application
    Filed: April 5, 2004
    Publication date: December 16, 2004
    Inventors: Ralph H. Schriver, Michael A. Spohn, Thomas P. Joyce, Herbert M. Grubic, Richard G. Critchlow
  • Publication number: 20040122370
    Abstract: The fluid injection apparatus for use with the syringe includes an injector and a pressure jacket assembly associated with the injector. The injector includes a housing defining a central opening and a drive piston extendable through the central opening for imparting motive forces to a syringe plunger disposed within the syringe. The pressure jacket assembly includes a pressure jacket and at least one locking member pivotally associated with the pressure jacket. The at least one locking member is movable between an engaged position preventing removal of the syringe from the pressure jacket and a disengaged position allowing insertion and removal of the syringe into the pressure jacket.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Inventors: Thomas P. Joyce, Ralph H. Schriver, Michael A. Spohn, Salvatore J. Dedola
  • Publication number: 20040122369
    Abstract: The fluid injection apparatus for use with a syringe includes an injector and a pressure jacket assembly associated with the injector. The injector includes a housing defining a central opening and a drive piston extendable through the central opening for imparting motive forces to a syringe plunger disposed within the syringe. The pressure jacket assembly includes a pressure jacket and at least one support arm associated with and extending outward from the housing. A syringe retaining member is attached to the at least one support arm. The syringe-retaining member defines a syringe receiving slot for receiving at least a portion of the syringe. A light source is located on the support arm and faces the pressure jacket for illuminating the syringe. The syringe includes an alignment flange defining a bulged air bubble viewing window (see A). The alignment flange is used to properly orient the syringe in the pressure jacket.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Inventors: Ralph H. Schriver, Michael A. Spohn, Thomas P. Joyce, Richard G. Critchlow, John A. Haury, Herbert M. Grubic, Mark Paul Jongewaard
  • Publication number: 20020147429
    Abstract: A syringe for use in a medical injection procedure in connection with connectors having a tapered fitting includes a syringe tip having a cooperating tapered fitting including a passage therein in fluid communication with an interior of the syringe. The syringe also includes a first connecting member having a radially inward threaded portion on an inner surface thereof adapted to connect to a first type of connector including a tapered fitting having at least one radially outward extending flange adapted to connect to the radially inward threaded portion of the first connecting member. In that regard, the first connecting member allows connection of the syringe to, for example, a standard luer fitting connector.
    Type: Application
    Filed: February 20, 2002
    Publication date: October 10, 2002
    Inventors: Kevin P. Cowan, Mark W. Hitchins, Ralph H. Schriver, Frederick W. Trombley, Joseph E. Bisegna, Herbert M. Grubic, Francis J. Sciulli, David M. Reilly, Arthur E. Uber, Frank B. McFall
  • Patent number: D536454
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: February 6, 2007
    Assignee: Medrad, Inc.
    Inventors: Thomas P. Joyce, Gerald W. Callan, Karen M. Zelenski, Michael A. Spohn, Ralph H. Schriver, Ralph E. Kopacko
  • Patent number: D542911
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: May 15, 2007
    Assignee: Medrad, Inc.
    Inventors: Thomas P. Joyce, Gerald W. Callan, Karen M. Zelenski, Michael A. Spohn, Ralph H. Schriver
  • Patent number: D545967
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: July 3, 2007
    Assignee: Medrad, Inc.
    Inventors: Thomas P. Joyce, Gerald W. Callan, Karen M. Zelenski, James Albert Dedig, Michael A. Spohn, Ralph H. Schriver