Patents Represented by Attorney Mark Lindsey
  • Patent number: 7223258
    Abstract: The present invention is a safety shield assembly having a shield and a collar for connecting the shield to a fluid handling device whereby the shield may be pivoted with respect to the collar. Preferably, the safety shield assembly may be used with a needle assembly, an intravenous infusion set a syringe, a catheter or other fluid handling devices or assemblies that contain piercing elements.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: May 29, 2007
    Assignee: Becton Dickinson and Company
    Inventor: Jamieson W. M. Crawford
  • Patent number: 7211430
    Abstract: An improved system and method for stirring suspended solids in a liquid media to enhance sample growth and improve sample detection results. The system and method employs a sample vessel holder which adapted to receive at least one sample vessel which contains the solids and liquid media and a stirrer, such as a ferrous metal filled stirrer, and maintain the sample vessel in a position such that the longitudinal axis of the sample vessel extends at an angle substantially less than 90 degrees with respect to the horizontal, such as within the range of about 15 degrees to about 25 degrees with respect to the horizontal. The system and method further employs a magnet driver, adapted to move a magnet, such as a rare earth magnet, proximate to an outer surface of the sample vessel to permit the magnet to impose a magnetic influence on the stirrer to move the stirrer in the sample vessel.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: May 1, 2007
    Assignee: Becton, Dickinson and Company
    Inventors: Daniel L. Schwarz, Paul Hansen, Frederick Pierre Dimpfel
  • Patent number: 7205157
    Abstract: Rare cells are separated from a sample fluid by a positive selection or negative selection antibody by centrifuging in a tube containing a harvesting float. The harvesting float has an axial passage and a density to settle in the sample fluid and expand the layer of the target component. The antibody is preferably coupled to a particulate carrier, such as a microbead, to attach either the target component or a contaminating component to the particulate carrier. In the positive separation, the particulate carrier is recovered in the axial passage of the float.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: April 17, 2007
    Assignee: Becton, Dickinson and Company
    Inventors: Stewart Russell Jurgensen, Sheila Ann Lloyd
  • Patent number: 7201740
    Abstract: A blood collection set includes a needle having a puncture tip, a hub supporting the needle and including a release member, a safety shield, a drive member, and a packaging shield disposed on the hub. The safety shield is movable from a retracted position within the hub to an extended position shielding the puncture tip of the needle. The packaging shield encloses the puncture tip of the needle in the retracted position of the safety shield. The shielding feature of the blood collection set is activated by applying radial pressure to the release member, causing the release member to release the packaging shield from the hub, and maintain the safety shield in the retracted position. Upon sufficient or partial release of radial pressure, the drive member disengages the release member from the safety shield and moves the safety shield from the retracted position to the extended positions.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: April 10, 2007
    Assignee: Becton, Dickinson and Company
    Inventor: Jamieson Crawford
  • Patent number: 7163526
    Abstract: The needle assembly is provided with the housing, an IV cannula for accessing a blood vessel and a non-patient cannula for communication with an evacuated tube. A flashback chamber is provided in the housing at or near the distal end of the housing. A shield is hinged to a portion of the housing proximally of the entrance to the flashback chamber. As a result, good visibility of the flashback chamber is achieved. After use, the shield can be rotated into a closed position for surrounding the IV cannula and avoiding accidental needle sticks.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: January 16, 2007
    Assignee: Becton, Dickinson and Company
    Inventors: Alvin Tan Chee Leong, Jon Moh Yaohan
  • Patent number: 7147826
    Abstract: A container assembly and method for storing, treating, transporting and stabilizing a biological sample includes a container, a closure member and a sample holder removably received in the container. The sample holder can be a platform-like device dimensioned to be supported on a ledge formed in the side wall of the container. The sample holder includes a central cavity for receiving the sample and immersing the sample in the stabilizing agent in the container. The closure member includes a body member to close the top end of the central cavity of the sample holder and to limit movement of the sample holder in the container. In another embodiment, the sample holder has a closure cap for closing the open top end of the cavity. The container includes a liquid reagent in an amount sufficient to treat the biological sample.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: December 12, 2006
    Assignee: Becton Dickinson and Company
    Inventors: Bruce C. Haywood, Jamieson William Maclean Crawford, Bradley M. Wilkinson
  • Patent number: 7128726
    Abstract: The present invention is a safety shield assembly having a shield and a collar for connecting the shield to a fluid handling device whereby the shield may be pivoted with respect to the collar. Preferably, the safety shield assembly may be used with a needle assembly, an intravenous infusion set a syringe, a catheter or other fluid handling devices or assemblies that contain piercing elements. The shield includes a clip with a plurality of cannula finger locks for preventing re-exposure of the used needle.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: October 31, 2006
    Assignee: Becton Dickinson and Company
    Inventors: Jamieson W. M. Crawford, Michael Bennett, C. Mark Newby
  • Patent number: 7122157
    Abstract: A substrate removably attached to a container that can be linked electronically to the operating stations in a laboratory and/or removed and subsequently attached to a document or another container. More particularly, the substrate is a partitioned label with human readable information and electronically readable information.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: October 17, 2006
    Assignee: Becton, Dickinson and Company
    Inventors: Timothy A. Stevens, Robert S. Golabek, Jr., Steven Savitz, Hugh T. Conway, Connie Hetzler, Eric Bainbridge
  • Patent number: 6793892
    Abstract: A specimen collection and separation assembly is provided. The assembly includes a tube having closure secured to the open top of the tube. The closure includes a section that is pierceable by a needle cannula for depositing a liquid specimen in the tube. A separator is disposed in the tube below the closure. The separator includes top and bottom ends. Portions of the separator adjacent the top define a resiliently deformable low density sealing plug dimensioned to sealingly engage the interior of the tube. A high density ring is integrally engaged with the seal and extends to the bottom of the separator. The relative densities and dimensions of the seal and the ring are selected to achieve an overall density between densities of the phases of liquid to be separated. The ring causes the seal to elongate in response to forces imposed by a centrifuge. The separator then will move to a position in the tube between the respective phases of the specimen being separated.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: September 21, 2004
    Inventor: Volker Niermann
  • Patent number: 6773419
    Abstract: An automatically shieldable blood collection set is provided. The blood collection set includes a needle assembly having a hub to which a needle cannula is fixedly attached. A safety shield is telescoped relative to the hub and the needle cannula and can be moved from a proximal position where the needle cannula is exposed to a distal position where the needle cannula is safely shielded. A spring is provided between the shield and the hub to propel the shield distally relative to the hub and into surrounding relationship with the needle cannula. A retainer is provided for releasably holding the shield in a proximal ready-to-use condition relative to the hub and the needle cannula. An actuator releases the retainer and enables the shield to be propelled by the spring. A lock may be provided for preventing inadvertent re-exposure of the needle cannula.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: August 10, 2004
    Inventors: Jamieson William Maclean Crawford, Stefanie Livanos