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).
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Patent number: 8814829Abstract: 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: GrantFiled: August 12, 2010Date of Patent: August 26, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventor: Birendra K. Lal
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Patent number: 8431086Abstract: 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: GrantFiled: June 7, 2011Date of Patent: April 30, 2013Assignees: 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
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Publication number: 20120041416Abstract: 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: ApplicationFiled: August 12, 2010Publication date: February 16, 2012Applicants: BAXTER HEALTHCARE S.A., BAXTER INTERNATIONAL INC.Inventor: Birendra K. Lal
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Publication number: 20110236258Abstract: 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: ApplicationFiled: June 7, 2011Publication date: September 29, 2011Applicants: 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
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Patent number: 7981381Abstract: 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: GrantFiled: July 20, 2007Date of Patent: July 19, 2011Assignees: 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
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Patent number: 7762524Abstract: 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: GrantFiled: October 20, 2008Date of Patent: July 27, 2010Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Dustin C. Cawthon, Birendra K. Lal
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Publication number: 20100100056Abstract: 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: ApplicationFiled: October 20, 2008Publication date: April 22, 2010Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.Inventors: DUSTIN C. CAWTHON, BIRENDRA K. LAL
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Publication number: 20090069743Abstract: 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: ApplicationFiled: September 11, 2008Publication date: March 12, 2009Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.Inventors: SIVARAMAKRISHNAN KRISHNAMOORTHY, SANJUN NIU, BIRENDRA K. LAL, TUAN BUI, RANDOLPH R. MEINZER
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Publication number: 20080107564Abstract: 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: ApplicationFiled: October 18, 2006Publication date: May 8, 2008Inventors: 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
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Publication number: 20080021392Abstract: 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: ApplicationFiled: July 20, 2006Publication date: January 24, 2008Inventors: Kent L. Lurvey, Dustin C. Cawthon, Birendra K. Lal, Vadim V. Krongauz, Michael Tung-Kiung Ling, Shmuel Sternberg, Rosa H. Yeh, Robin G. Pauley
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Publication number: 20080021381Abstract: 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: ApplicationFiled: July 20, 2007Publication date: January 24, 2008Applicants: 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
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Publication number: 20030094736Abstract: 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: ApplicationFiled: December 20, 2002Publication date: May 22, 2003Inventors: Chuan Qin, Patrick T. Ryan, Michael T.K. Ling, Donna L. Rostron, Yuanpang S. Ding, Lecon Woo, Susan R. Mizener, Birendra K. Lal
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Publication number: 20030044555Abstract: 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: ApplicationFiled: August 24, 2001Publication date: March 6, 2003Inventors: 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
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Patent number: 6506333Abstract: 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: GrantFiled: September 3, 1999Date of Patent: January 14, 2003Assignee: 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
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Patent number: 6497685Abstract: 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: GrantFiled: March 24, 2000Date of Patent: December 24, 2002Assignee: Baxter International Inc.Inventors: T. Michael Dennehey, Birendra K. Lal, Massimo Scagliarini
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Publication number: 20020055590Abstract: 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: ApplicationFiled: April 25, 2001Publication date: May 9, 2002Inventors: 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
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Patent number: 6328716Abstract: 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: GrantFiled: May 3, 1996Date of Patent: December 11, 2001Assignee: 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
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Patent number: 6187400Abstract: 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: GrantFiled: May 26, 1998Date of Patent: February 13, 2001Assignee: 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
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Patent number: 6162206Abstract: 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: GrantFiled: December 23, 1997Date of Patent: December 19, 2000Assignee: 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
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Patent number: 6129876Abstract: 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: GrantFiled: May 3, 1996Date of Patent: October 10, 2000Assignee: 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