Patents Represented by Attorney Paul C. Flattery
  • Patent number: 5232437
    Abstract: Methods and systems for collection of blood components, such as plasma, from donors are provided. One method includes the steps of collecting a unit of whole blood from a donor; forcing the collected blood unit through a plasma separator; accumulating the plasma in a container; and returning concentrated cells to the donor. One system includes a disposable blood collection set and a reusable fixture into which the collection set can be mounted. The fixture is operated by a self-contained energy source, requiring no exterior electrical connection or other external source of energy.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: August 3, 1993
    Assignee: Baxter International Inc.
    Inventors: Michael J. Lysaght, Daniel R. Boggs, Philip L. Ritger, Robert R. Stromberg, Leonard I. Friedman
  • Patent number: 5226900
    Abstract: The present invention provides an improved cannula that can be used to reconstitute powdered drugs in a drug delivery system. Furthermore, the present invention provides a cannula and drug delivery system incorporating same. To this end, the present invention provides a cannula structure for use in a reconstitution device for reconstituting a powdered drug comprising a cannula having a first end and a second end, and defining a channel in an interior thereof between the first and second ends. The first end is closed and includes a member for piercing a septum. The cannula includes at least two slots providing fluid communication between the channel and an exterior of the cannula. The slots are located in juxtaposition to the first end and have a width, as measured along a length of the cannula, that is less than a length, as measured around the cannula. The slots also have a minimum projected area equal to or greater than the cross-sectional area of the channel.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: July 13, 1993
    Assignee: Baxter International Inc.
    Inventors: Joseph A. Bancsi, Charles Eller, Thomas A. Fowles, Brian J. Gorman, Terrance J. Hebron, Charles Jersild, Donald A. Jess, Joseph C. T. Wong, Ray W. Wood
  • Patent number: 5224921
    Abstract: A device and method are provided for separating mononuclear cells from red blood cell depleted plasma in a centrifuge blood cell separator. The device includes an inlet for receiving plasma, an area for receiving mononuclear cells, and an outlet for receiving mononuclear cell depleted plasma. The distance and flow path between the inlet and outlet being so constructed and arranged as to cause mononuclear cells to sediment out into the area for receiving the mononuclear cells and causing at least 66% of the platelets contained in the plasma to flow to and through the outlet.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: July 6, 1993
    Assignee: Baxter International Inc.
    Inventors: T. Michael Dennehey, Joseph C. West, Jr.
  • Patent number: 5223228
    Abstract: A tray is described for storing and transporting a module. The tray includes a slot which can be used to hold the module in an upright position to allow the module to be filled with water.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: June 29, 1993
    Assignee: Baxter International Inc.
    Inventors: Anil M. Telang, David A. Rivera, Michael D. Johnson
  • Patent number: 5211638
    Abstract: A pre-slit injection site includes a housing with a flow path therethrough. A first end of the housing carries a pre-slit septum. A second end of the housing carries a coupling component to adapt the site to standard vials. The coupling component, a vial adapter, includes an adapter spike with openings allowing for the drainage of fluid in the vial through the spike and into the injection site. The vial adapter is provided with a skirt housing unit which protects the adapter spike in manufacturing and use. The skirt housing unit also provides features to lockingly engage the adapter with injection site to standard vials, despite dimensional variations in vial closures. Another embodiment of the coupling component is a spike having a barb feature capable of insertion into a standard vial or port and resisting disengagement.A blunt cannula is usable with the injection site combined with the coupling components.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: May 18, 1993
    Assignee: Baxter International Inc.
    Inventors: Thomas E. Dudar, Steven C. Jepson, Robert P. Dobbie, Peter L. Graham, Michael J. Finley, Richard A. Rollins
  • Patent number: 5207642
    Abstract: An improved multiple fluid delivery system usable for the delivery of intravenous fluids to a patient from a plurality of fluid sources includes flexible tubing members for coupling the sources to a fluid junction member. The fluid junction member, wherein little or no interfluid mixing occurs, is coupled by an output conduit to a controllable pump. Output from the pump, via a further fluid flow conduit, can be coupled to the patient's catheter. The system can multiplex a plurality of different fluids. Spaced apart sequences of fluid quanta are injected into the output conduit from the fluid flow junction. The fluids are either mixed, or not, in the output conduit as desired. Operator interaction and control of the system can occur either through a display screen or by means of a bar code sensor. Hard copy records can be provided of fluid flow delivery schedules or other related information.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: May 4, 1993
    Assignee: Baxter International Inc.
    Inventors: Fredric I. Orkin, Theodore Liber, Charles R. Smith, Kimball J. Knowlton, Albin Huntley
  • Patent number: 5208762
    Abstract: A method and apparatus for dispensing drugs, wherein a patient's order of one or more prescriptions is automatically filled. Various drugs are stored in three or more filler lines. A vial size is assigned to each line. When a prescription is filled, it is automatically assigned to a line in view of the vial size requirements and processed accordingly. Provisions are made for the inability to fill a prescription or order. Subsequently, all of the patient's prescriptions are collected and made available as a single order.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: May 4, 1993
    Assignee: Baxter International Inc.
    Inventors: Kenneth A. Charhut, Keith Goodale, Joseph Blechl, Will Skou
  • Patent number: 5203819
    Abstract: An improved apparatus is disclosed for attaching a fitment (13) to a web of film (20), including a heat seal tip (32) for piercing a web of film (20), for use in the manufacture of flexible plastic containers. The fitment (13) provides a means of access between the interior of the container and the outside environment.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: April 20, 1993
    Assignee: Baxter International Inc.
    Inventor: Byron Gleason
  • Patent number: 5202065
    Abstract: A method of creating a score in a pouch formed from a thermoplastic film is described. Ultrasonic energy is used to create the score in a film that is later formed into a pouch. The score can be used to open the pouch by pulling opposite sides of the scored area. The ultrasonic force is applied to the film as a part of a downstream process in a blown film manufacturing line to produce the pouch.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: April 13, 1993
    Assignee: Baxter International Inc.
    Inventors: John G. Lenander, Robert W. Hinley
  • Patent number: 5195992
    Abstract: A protector shield is provided for a needle to protect from injury to the hand and touch contamination of the needle. The protector shield comprises an arcuate wall, longitudinally positionable about the pointed end of a tubular needle in spaced relation to it. The arcuate wall defines an open side, and an arcuate arm extends from the arcuate wall across a portion of the open side. The arm extends generally circumferentially about the needle so that the protector shield may be used to lock the needle into engagement with a Y-type injection site.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: March 23, 1993
    Assignee: Baxter International Inc.
    Inventors: Thomas E. Dudar, Vincent C. Desecki
  • Patent number: 5193913
    Abstract: A web of film for use in manufacturing flexible containers is provided. In an embodiment, the film comprises a first layer constructed from a non-RF responsive material and a second layer constructed from a RF responsive material. The second layer has a sufficiently greater thickness than the first layer that when sufficient RF energy is applied to the second layer, the first layer is sealed to a second film surface. In an embodiment, the film has three layers. A container constructed from the film is also provided.
    Type: Grant
    Filed: February 4, 1992
    Date of Patent: March 16, 1993
    Assignee: Baxter International Inc.
    Inventor: Larry A. Rosenbaum
  • Patent number: 5190527
    Abstract: An intravenous metering device is provided which includes an air retention chamber in downstream fluid communication with a source of fluid and in upstream fluid communication with a pumping chamber. A first valve is provided between the air retention chamber and the pumping chamber to control access to the pumping chamber. A second valve is provided to control the exit of fluid from the pumping chamber. The valves include a shared diaphragm portion. A safety mechanism as provided to prevent accidental free flow of fluid through the metering device. In a first preferred embodiment of a safety mechanism, a gradually tapered priming stem is provided attached to the diaphragm portion of the second valve. In a second preferred embodiment of a safety mechanism, a priming stem is provided attached to the diaphragm portion of the second valve and a priming stem release mechanism is further provided.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: March 2, 1993
    Assignee: Baxter International Inc.
    Inventors: Dannie E. Hamilton, Roberta Scola
  • Patent number: 5190185
    Abstract: The present device is a magazine (10) which includes housing defining a medication storage area. An access door (22) is provided in the housing to gain access to stock the storage area with unit dose medication containers (34). The housing defines an open lower periphery which is covered by at least one locking mechanism having a release door (156). The locking mechanism includes a plurality of cams (166, 174, 186) cooperatively contained such that upon sequential operation, the release door (156) opens the lower periphery which allows the unit dose medication containers (34) to fall.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: March 2, 1993
    Assignee: Baxter International Inc.
    Inventor: Joseph Blechl
  • Patent number: 5188588
    Abstract: Blood separation is accomplished by alternately extracting blood from and reinfusing blood into a donor by way of a single needle while simultaneously and continuously separating the extracted blood into constituents. A harness set applicable to a hemapheresis instrument includes a dual-compartment reservoir. A first compartment stores blood during extraction for supply to the separator during reinfusion. The second compartment stores packed cells during collection for return to the donor during reinfusion. The collection and reinfusion cycles are alternated rapidly to preclude clotting in the un-anticoagulated portion of the harness tubing between the venepuncture needle and the Y-connection with the anticoagulant line.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: February 23, 1993
    Assignee: Baxter Internatonal Inc.
    Inventors: Donald W. Schoendorfer, Paul R. Prince
  • Patent number: 5188620
    Abstract: A pre-slit injection site includes a housing with a flow path therethrough. A first end of the housing carries a pre-slit septum. A blunt cannula, usable with the injection site, carries a locking member. When the pre-slit injection site slidably receives the blunt cannula the locking member latches to the injection site forming a mechanically coupled unit.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: February 23, 1993
    Assignee: Baxter International Inc.
    Inventors: Steve C. Jepson, Thomas E. Dudar
  • Patent number: 5183039
    Abstract: A control circuit for a fluid-filled heating pad is described. The control circuit is unique in that it includes a thermistor that is located in close proximity to the heating pad. The circuit is also unique in that it includes a single high-precision reference resistor to self-calibrate the control circuitry.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: February 2, 1993
    Assignee: Baxter International Inc.
    Inventors: Grigor Sarian, Barry R. Crandall, Jeff R. Duncan
  • Patent number: 5181276
    Abstract: The present invention relates to infection resistant materials and or products made from a molten blend of at least one polymer and a compound having antioxidant, plasticizer and antiviral activity. Additionally, this compound has a hydrophilic lipophilic balance of between 12 and 20. The preferred polymer, polyvinyl chloride, is blended with the antioxidant, plasticizer, antiviral compound NONOXYNOL-9 (.alpha.-nonylphenyl-w-hydroxypoly(oxy-1, 2-ethanediyl) to form the infection resistant material.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: January 26, 1993
    Assignee: Baxter International Inc.
    Inventors: Jean Kersten, Yves A. Delmotte
  • Patent number: 5180504
    Abstract: Systems and methods for collecting blood substantially free of undesired matter assure that accurate crossmatching and typing of cellular blood components can be done prior to transfusion, even though the cellular components are collected and stored in different containers. The blood containing the undesired matter is collected in a blood collection container. The blood collection container includes a tube that is sealed for retaining samples of the collected blood for later analysis. The collected blood is conveyed out of the blood collection container for removal of undesired matter. The blood substantially free of the undesired matter is collected in a separate transfer container for storage. The distal end of the sealed tube containing the blood samples is attached to the transfer container, while the other end of the sealed tube is disconnected from the original blood collection container.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: January 19, 1993
    Assignee: Baxter International Inc.
    Inventors: Kenneth M. Johnson, Samira E. Monaghan
  • Patent number: D333404
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: February 23, 1993
    Assignee: Baxter International Inc.
    Inventor: Joseph F. Thompson
  • Patent number: D334233
    Type: Grant
    Filed: July 8, 1990
    Date of Patent: March 23, 1993
    Assignee: Baxter International Inc.
    Inventor: Ronald Schaechter