Patents by Inventor Birendra K. Lal

Birendra K. Lal 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: 8814829
    Abstract: A syringe assembly for connecting to an intravenous (“IV”) line includes: a syringe barrel having an actuation end and a discharge end; a syringe plunger moveable within the syringe barrel, the syringe plunger including a plunger head connected to a plunger arm; a seal between the plunger arm and the syringe barrel, the seal residing on an actuation end side of the syringe plunger; and a tube in fluid communication with the syringe barrel at a location between the seal and the plunger head, the tube having a distal end configured to be connected to the IV line.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: August 26, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventor: Birendra K. Lal
  • Patent number: 8431086
    Abstract: A medical device, such as a vascular access device, is disclosed for providing access to a medical fluid flow path for the introduction or withdrawal of medical fluids to and from the flow path. The access device includes an indicator for providing a visual indication when the access device has been exposed to an antiseptic agent.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: April 30, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Kent L. Lurvey, Shmuel Sternberg, Vadim V. Krongauz, Rosa H. Yeh, Robin G. Pauley, Dustin C. Cawthon, Ton That Hai, Lecon L. Woo, Ashok K. Khanna, Birendra K. Lal, Michael Tung-Kiung Ling, William S. Hoerle, Craig L. Sandford, Mark A. Nordhaus, Alexander Savitski, Nicklaus J. Kirichkow, Kenneth Glen Suh, Sivaramakrishnan Krishnamoorthy, Hsinjin E. Yang, Robert A. Clarke
  • Publication number: 20120041416
    Abstract: A syringe assembly for connecting to an intravenous (“IV”) line includes: a syringe barrel having an actuation end and a discharge end; a syringe plunger moveable within the syringe barrel, the syringe plunger including a plunger head connected to a plunger arm; a seal between the plunger arm and the syringe barrel, the seal residing on an actuation end side of the syringe plunger; and a tube in fluid communication with the syringe barrel at a location between the seal and the plunger head, the tube having a distal end configured to be connected to the IV line.
    Type: Application
    Filed: August 12, 2010
    Publication date: February 16, 2012
    Applicants: BAXTER HEALTHCARE S.A., BAXTER INTERNATIONAL INC.
    Inventor: Birendra K. Lal
  • Publication number: 20110236258
    Abstract: A medical device, such as a vascular access device, is disclosed for providing access to a medical fluid flow path for the introduction or withdrawal of medical fluids to and from the flow path. The access device includes an indicator for providing a visual indication when the access device has been exposed to an antiseptic agent.
    Type: Application
    Filed: June 7, 2011
    Publication date: September 29, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Kent L. Lurvey, Shmuel Sternberg, Vadim V. Krongauz, Rosa H. Yeh, Robin G. Pauley, Dustin C. Cawthon, Ton That Hai, Lecon L. Woo, Ashok K. Khanna, Birendra K. Lal, Michael Tung-Kiung Ling, William S. Hoerle, Craig L. Sandford, Mark A. Nordhaus, Alexander Savitski, Nicklaus J. Kirichkow, Kenneth Glen Suh, Sivaramakrishnan Krishnamoorthy, Hsinjin E. Yang, Robert A. Clarke
  • Patent number: 7981381
    Abstract: A medical device, such as a vascular access device, is disclosed for providing access to a medical fluid flow path for the introduction or withdrawal of medical fluids to and from the flow path. The access device includes an indicator for providing a visual indication when the access device has been exposed to an antiseptic agent.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: July 19, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Kent L. Lurvey, Shmuel Sternberg, Vadim V. Krongauz, Rosa H. Yeh, Robin G. Pauley, Dustin C. Cawthon, Ton That Hai, Lecon L. Woo, Ashok K. Khanna, Birendra K. Lal, Michael Tung-Kiung Ling, William S. Hoerle, Craig L. Sandford, Mark A. Nordhaus, Alexander Savitski, Nicklaus J. Kirichkow, Kenneth Glen Suh, Sivaramakrishnan Krishnamoorthy, Hsinjin E. Yang, Robert A. Clarke
  • Patent number: 7762524
    Abstract: A needleless valve assembly includes a needleless connector having a housing with an inlet end with an inlet opening and an outlet end with an outlet opening, and a valve disposed in the housing to control passage between the openings. The assembly also includes a collar having an exterior surface and an interior surface, and a first end with a collar opening communicating between the interior surface and the exterior surface and a second end moveably attached to the housing. Further, the assembly includes a barrier disposed across the collar opening with a slit therethrough and including an anti-microbial material. The collar is moveable relative to the housing so that the inlet end of the housing depends past the exterior surface of the collar through the slit in the barrier. A kit may include the assembly and a catheter having a first end attached to the outlet opening.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: July 27, 2010
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Dustin C. Cawthon, Birendra K. Lal
  • Publication number: 20100100056
    Abstract: A needleless valve assembly includes a needleless connector having a housing with an inlet end with an inlet opening and an outlet end with an outlet opening, and a valve disposed in the housing to control passage between the openings. The assembly also includes a collar having an exterior surface and an interior surface, and a first end with a collar opening communicating between the interior surface and the exterior surface and a second end moveably attached to the housing. Further, the assembly includes a barrier disposed across the collar opening with a slit therethrough and including an anti-microbial material. The collar is moveable relative to the housing so that the inlet end of the housing depends past the exterior surface of the collar through the slit in the barrier. A kit may include the assembly and a catheter having a first end attached to the outlet opening.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 22, 2010
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: DUSTIN C. CAWTHON, BIRENDRA K. LAL
  • Publication number: 20090069743
    Abstract: A sensor system for use with an infusion system may include at least one sensor disposed within a catheter, the at least one sensor comprising at least one of an optical sensor, an electrical sensor or a chemical/biochemical sensor. The sensor system may instead include a sample cell that is in fluid communication with the infusion system, which sample cell may be used with an analyzer to determine a patient's condition. The sensor system may be integrated with a control system for an infusion pump to control operation of the pump.
    Type: Application
    Filed: September 11, 2008
    Publication date: March 12, 2009
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: SIVARAMAKRISHNAN KRISHNAMOORTHY, SANJUN NIU, BIRENDRA K. LAL, TUAN BUI, RANDOLPH R. MEINZER
  • Publication number: 20080107564
    Abstract: An access device including access site is disclosed for providing access to a medical fluid flow path for the introduction or withdrawal of medical fluids to and from the flow path. The access device includes an indicator for providing a visual indication when the access device has been exposed to an antiseptic agent.
    Type: Application
    Filed: October 18, 2006
    Publication date: May 8, 2008
    Inventors: Shmuel Sternberg, Kent L. Lurvey, Robin G. Pauley, Dustin C. Cawthon, Ton That Hai, Lecon Woo, Ashok K. Khanna, Birendra K. Lal, Michael Tung-Kiung Ling, Vadim V. Krongauz, Rosa H. Yeh, William S. Hoerle, Craig L. Sandford
  • Publication number: 20080021392
    Abstract: An access device including access site is disclosed for providing access to a medical fluid flow path for the introduction or withdrawal of medical fluids to and from the flow path. The access device includes an indicator for providing a visual indication when the access device has been exposed to an antiseptic agent.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 24, 2008
    Inventors: Kent L. Lurvey, Dustin C. Cawthon, Birendra K. Lal, Vadim V. Krongauz, Michael Tung-Kiung Ling, Shmuel Sternberg, Rosa H. Yeh, Robin G. Pauley
  • Publication number: 20080021381
    Abstract: A medical device, such as a vascular access device, is disclosed for providing access to a medical fluid flow path for the introduction or withdrawal of medical fluids to and from the flow path. The access device includes an indicator for providing a visual indication when the access device has been exposed to an antiseptic agent.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 24, 2008
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Kent L. LURVEY, Shmuel STERNBERG, Vadim V. KRONGAUZ, Rosa H. YEH, Robin G. PAULEY, Dustin C. CAWTHON, Ton That HAI, Lecon L. WOO, Ashok K. KHANNA, Birendra K. LAL, Michael Tung-Kiung LING, William S. HOERLE, Craig L. SANDFORD, Mark A. NORDHAUS, Alexander SAVITSKI, Nicklaus J. KIRICHKOW, Kenneth Glen SUH, Sivaramakrishnan KRISHNAMOORTHY, Hsinjin E. YANG, Robert A. CLARKE
  • Publication number: 20030094736
    Abstract: The present invention provides a method of using a medical tubing with a pump for administering measured amounts of a beneficial fluid over time to a patient. The method includes the steps of providing a material selected from the group consisting of ethylene homopolymers and ethylene copolymers, wherein the ethylene copolymers are obtained by copolymerizing ethylene with a comonomer selected from the group consisting of alkyl olefins, alkyl esters of a carboxylic acid and lower alkene esters of a carboxylic acid, or blends thereof; providing an extruder with an extrusion die; extruding the material into a medical tubing; providing a surface modifier solution; preheating the surface modifier solution to a temperature within the range of 30-95° C.; applying the preheated solution onto the tubing at it exits the extrusion die when the tubing is in a molten state or a semi-molten state; and pumping fluid through the tubing with the pump.
    Type: Application
    Filed: December 20, 2002
    Publication date: May 22, 2003
    Inventors: Chuan Qin, Patrick T. Ryan, Michael T.K. Ling, Donna L. Rostron, Yuanpang S. Ding, Lecon Woo, Susan R. Mizener, Birendra K. Lal
  • Publication number: 20030044555
    Abstract: A polymer blend for fabricating medical products having a first 1,2 polybutadiene present from about 1% to about 99% by weight of the blend and having a first melting point temperature; and a second 1,2 polybutadiene present from about 1% to about 99% by weight of the blend and having a second melting point temperature higher than the first melting point temperature.
    Type: Application
    Filed: August 24, 2001
    Publication date: March 6, 2003
    Inventors: Yuan-pang Samuel Ding, Birendra K. Lal, Michael T.K. Ling, Richard Mennenoh, Michael K. Oberhaus, Lecon Woo, Sarah Corbin, George Dillon, Dale Pennington, Chuan Qin, Patrick T. Ryan
  • Patent number: 6506333
    Abstract: The present invention provides a method for fabricating a medical tubing. The method includes the steps of: (1) providing a material selected from the group consisting of ethylene homopolymers and ethylene copolymers, wherein the ethylene copolymers are obtained by copolymerizing ethylene with a comonomer selected from the group consisting of lower alkyl olefins, lower alkyl esters of a carboxylic acid and lower alkene esters of a carboxylic acid, the lower alkyl and lower alkene each have from 3-18 carbons, or blends thereof; (2) providing an extruder with an extrusion die; (3) extruding the material into a medical tubing; (4) providing a surface modifier solution; (5) preheating the surface modifier solution to a temperature within the range of 50-80° C.; and (6) applying the preheated solution onto the tubing at it exits the extrusion die when the tubing is in a molten state or a semi-molten state.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: January 14, 2003
    Assignee: Baxter International Inc.
    Inventors: Chuan Qin, Patrick T. Ryan, Michael T. K. Ling, Donna L. Rostron, Yuanpang S. Ding, Lecon Woo, Susan R. Mizener, Birendra K. Lal
  • Patent number: 6497685
    Abstract: A filtering chamber for a set for the administration of fluids is provided. The chamber includes a housing providing a passageway for the fluid in the administration set. Within the chamber is a filter of screen which filters the fluid flowing through the housing. The filter or screen is attached to the housing during molding of the housing without the use of bonding agents, resulting in a chamber component which may be produced automatically and economically.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: December 24, 2002
    Assignee: Baxter International Inc.
    Inventors: T. Michael Dennehey, Birendra K. Lal, Massimo Scagliarini
  • Publication number: 20020055590
    Abstract: The present invention provides a polymer composition having: a first component selected from homopolymers and copolymers of cyclic olefin containing polymers and bridged polycyclic hydrocarbon containing polymers, the first component being present in an amount from about 1-99% by weight of the composition; and a second component is selected from homopolymers and copolymers of a diene having from 4 to 12 carbons, the second component being present in an amount from about 99% to about 1% by weight of the composition.
    Type: Application
    Filed: April 25, 2001
    Publication date: May 9, 2002
    Inventors: Yuan-Pang Samuel Ding, Birendra K. Lal, Michael T.K. Ling, Richard Mennenoh, Daniel Beedon, Lecon Woo, Sarah Corbin, George Dillon, Dale Pennington, Chuan Qin, Patrick T. Ryan
  • Patent number: 6328716
    Abstract: The present invention provides a method for using medical tubing for infusing therapeutic fluids to a patient comprising the steps of: providing a medical tubing having a sidewall of a polymeric blend, the blend having a polymeric material in an amount by weight within the range of 99.999%-90.0%, and an additive in an amount by weight within the range of 0.001%-10%, the tubing having been oriented along a longitudinal axis of the tubing to define a oriented diameter that is less than a diameter of the tubing before orienting; and providing fluid under pressure through the tubing to the patient.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: December 11, 2001
    Assignee: Baxter International Inc.
    Inventors: Chuan Qin, Patrick T. Ryan, Donna L. Rostron, Birendra K. Lal, Yuanpang S. Ding, Susan R. Mizener, Lecon Woo, Michael T. K. Ling
  • Patent number: 6187400
    Abstract: The present invention provides a method of using a medical tubing with a pump for administering measured amounts of a beneficial fluid over time to a patient comprising the steps of providing a tubing having a first layer selected from the group consisting of ethylene homopolymers and ethylene copolymers, wherein the copolymers of ethylene are an ethylene monomer copolymerized with at least one monomer selected from the group consisting of lower alkyl olefins, lower alkyl esters of a carboxylic acid, and lower alkene esters of a carboxylic acid, the lower alkyl and lower alkene having from 3 to 18 carbons, the tubing having been exposed to a sterilization dosage of radiation of from about 15 to about 45 kGys; and pumping fluid through the tubing with the pump.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: February 13, 2001
    Assignee: Baxter International Inc.
    Inventors: Lecon Woo, Michael T. K. Ling, Chuan Qin, Birendra K. Lal, Yuan-pang S. Ding, Donna L. Rostron, Susan R. Mizener, Patrick T. Ryan
  • Patent number: 6162206
    Abstract: A resealable access site (10) is provided for allowing a cannula (18) multiple accesses to an internal cavity (35) defined by a container (12). The access site (10) includes a first conduit (28) defining a passageway (29) forming a fluid path to the cavity within the container. Sealingly attached to the conduit (28) is a housing (26) with a lower portion (26a) and a lower flange (68) attached to a lower end of the lower portion and extending radially inward from the lower portion. A septum (24) is disposed and compressed within the lower portion, with the septum defining an opening (46) extending upward through at least a portion of the septum. The opening (46) is sized for insertion of the cannula (18) through the septum (24) with the septum sealing about the exterior of the cannula. The septum (24) is maintained in the housing by the support provided by the opposing flange (68) and conduit (28).
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: December 19, 2000
    Assignee: Baxter International Inc.
    Inventors: Algirdas J. Bindokas, Birendra K. Lal, Ray Brausam, Thomas A. Stonis, Steven C. Jepson, Michael W. Scharf, David V. Bacehowski, Michael T. K. Ling, Hugh M. Forman, Daniel J. Rudolph
  • Patent number: 6129876
    Abstract: The present invention provides a method for fabricating flexible medical tubings comprising the steps of providing a tubing of a polymer material, the tubing having a longitudinal axis and an initial diameter, orienting the tubing along the longitudinal axis of the tubing to reduce the diameter of the tubing to define a oriented diameter, and applying heat to the oriented tubing to heat set the tubing to maintain dimensional stability of the tubing over a temperature to which the tubing will normally be exposed.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: October 10, 2000
    Assignee: Baxter International Inc.
    Inventors: Chuan Qin, Patrick T. Ryan, Donna Rostron, Birendra K. Lal, Yuanpang S. Ding, Susan Mizener, Michael T. K. Ling, Dean Laurin, Lecon Woo