Patents by Inventor Chee Leong Lum

Chee Leong Lum 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: 11679203
    Abstract: Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: June 20, 2023
    Assignee: Becton, Dickinson and Company
    Inventors: Chee Leong Lum, Peter Douglas, Waheed Abid
  • Patent number: 11478589
    Abstract: Medical device assemblies having a connection mechanism for securely connecting a hub to fluid storage containers in a luer slip relationship are described. An exemplary medical device includes a hub forming a cavity, a second indicating element disposed within the cavity that engages the hub. Additional features of the medical device include a second indicating element contoured to form a line contact with the hub. In a specific configuration, the hub includes a first indicating element attached to the hub and extending proximally into the cavity having a protrusion. In a more specific configuration, the medical device includes a fluid storage container that has an indication system for visually indicating optimal fluid-tight engagement of the hub and the fluid storage container.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: October 25, 2022
    Assignee: Becton, Dickinson and Company
    Inventors: Chee Leong Lum, Waheed Abid, Peter Douglas, Ivan Zivkovic
  • Publication number: 20210146056
    Abstract: Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
    Type: Application
    Filed: December 11, 2020
    Publication date: May 20, 2021
    Applicant: Becton, Dickinson and Company
    Inventors: Chee Leong Lum, Peter Douglas, Waheed Abid
  • Patent number: 10898650
    Abstract: Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: January 26, 2021
    Assignee: Becton, Dickinson and Company
    Inventors: Chee Leong Lum, Peter Douglas, Waheed Abid
  • Patent number: 10576209
    Abstract: A syringe assembly having a flexible and/or slidable flange is provided, wherein in a pre-use or packaged state, the flange is positioned substantially parallel to a barrel of the syringe assembly resulting in the syringe assembly having a smaller packaging footprint. The smaller packaging footprint allows for a reduced storage space of the syringe assembly. Upon removal from a packaging and/or the storage space, the flange can be slid and locked into place such that the flange extends in a perpendicular direction with respect to a longitudinal axis of the barrel of the syringe assembly to allow for a traditional operation of the syringe assembly.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: March 3, 2020
    Assignee: Becton Dickinson France
    Inventors: Chee Leong Lum, Eric Schiller
  • Publication number: 20200023142
    Abstract: Medical device assemblies having a connection mechanism for securely connecting a hub to fluid storage containers in a luer slip relationship are described. An exemplary medical device includes a hub forming a cavity, a second indicating element disposed within the cavity that engages the hub. Additional features of the medical device include a second indicating element contoured to form a line contact with the hub. In a specific configuration, the hub includes a first indicating element attached to the hub and extending proximally into the cavity having a protrusion. In a more specific configuration, the medical device includes a fluid storage container that has an indication system for visually indicating optimal fluid-tight engagement of the hub and the fluid storage container.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Inventors: Chee Leong Lum, Waheed Abid, Peter Douglas, Ivan Zivkovic
  • Patent number: 10426899
    Abstract: Medical device assemblies having a connection mechanism for securely connecting a hub to fluid storage containers in a luer slip relationship are described. An exemplary medical device includes a hub forming a cavity, a second indicating element disposed within the cavity that engages the hub. Additional features of the medical device include a second indicating element contoured to form a line contact with the hub. In a specific configuration, the hub includes a first indicating element attached to the hub and extending proximally into the cavity having a protrusion. In a more specific configuration, the medical device includes a fluid storage container that has an indication system for visually indicating optimal fluid-tight engagement of the hub and the fluid storage container.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: October 1, 2019
    Assignee: Becton, Dickinson and Company
    Inventors: Chee Leong Lum, Waheed Abid, Peter Douglas, Ivan Zivkovic
  • Publication number: 20190030252
    Abstract: A syringe assembly having a flexible and/or slidable flange is provided, wherein in a pre-use or packaged state, the flange is positioned substantially parallel to a barrel of the syringe assembly resulting in the syringe assembly having a smaller packaging footprint. The smaller packaging footprint allows for a reduced storage space of the syringe assembly. Upon removal from a packaging and/or the storage space, the flange can be slid and locked into place such that the flange extends in a perpendicular direction with respect to a longitudinal axis of the barrel of the syringe assembly to allow for a traditional operation of the syringe assembly.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Inventors: Chee Leong Lum, Eric Schiller
  • Publication number: 20190009035
    Abstract: Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: Chee Leong Lum, Peter Douglas, Waheed Abid
  • Patent number: 10173011
    Abstract: Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: January 8, 2019
    Assignee: Becton, Dickinson and Company
    Inventors: Chee Leong Lum, Peter Douglas, Waheed Abid
  • Patent number: 10112014
    Abstract: A syringe assembly having a flexible and/or slidable flange is provided, wherein in a pre-use or packaged state, the flange is positioned substantially parallel to a barrel of the syringe assembly resulting in the syringe assembly having a smaller packaging footprint. The smaller packaging footprint allows for a reduced storage space of the syringe assembly. Upon removal from a packaging and/or the storage space, the flange can be slid and locked into place such that the flange extends in a perpendicular direction with respect to a longitudinal axis of the barrel of the syringe assembly to allow for a traditional operation of the syringe assembly.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: October 30, 2018
    Assignee: Becton Dickinson France
    Inventors: Chee Leong Lum, Eric Schiller
  • Publication number: 20180036493
    Abstract: Medical device assemblies having a connection mechanism for securely connecting a hub to fluid storage containers in a luer slip relationship are described. An exemplary medical device includes a hub forming a cavity, a second indicating element disposed within the cavity that engages the hub. Additional features of the medical device include a second indicating element contoured to form a line contact with the hub. In a specific configuration, the hub includes a first indicating element attached to the hub and extending proximally into the cavity having a protrusion. In a more specific configuration, the medical device includes a fluid storage container that has an indication system for visually indicating optimal fluid-tight engagement of the hub and the fluid storage container.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 8, 2018
    Inventors: Chee Leong Lum, Waheed Abid, Peter Douglas, Ivan Zivkovic
  • Patent number: 9789265
    Abstract: Medical device assemblies having a connection mechanism for securely connecting a hub to fluid storage containers in a luer slip relationship are described. An exemplary medical device includes a hub forming a cavity, a second indicating element disposed within the cavity that engages the hub. Additional features of the medical device include a second indicating element contoured to form a line contact with the hub. In a specific configuration, the hub includes a first indicating element attached to the hub and extending proximally into the cavity having a protrusion. In a more specific configuration, the medical device includes a fluid storage container that has an indication system for visually indicating optimal fluid-tight engagement of the hub and the fluid storage container.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: October 17, 2017
    Assignee: Becton, Dickinson and Company
    Inventors: Chee Leong Lum, Waheed Abid, Peter Douglas, Ivan Zivkovic
  • Patent number: 9295783
    Abstract: A syringe assembly includes a syringe barrel having an exterior surface, an inside surface defining a chamber, an open proximal end, a distal end, and an outlet disposed adjacent the distal end in fluid communication with the chamber; and a plunger assembly disposed at least partially within the syringe barrel. The plunger assembly includes an elongated plunger rod and a plunger head. The elongated plunger rod is associated with the plunger head to move the plunger head within the chamber of the syringe barrel through an injection cycle. The plunger rod is adapted to move from a collapsed position extending alongside the exterior surface of the syringe barrel to an extended position engaging the plunger head to move the plunger head through the injection cycle.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: March 29, 2016
    Assignee: Becton Dickinson France
    Inventors: Chee Leong Lum, Eric Schiller
  • Publication number: 20160038684
    Abstract: Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
    Type: Application
    Filed: September 30, 2015
    Publication date: February 11, 2016
    Inventors: Chee Leong Lum, Peter Douglas, Waheed Abid
  • Patent number: 9174007
    Abstract: Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: November 3, 2015
    Assignee: Becton, Dickinson and Company
    Inventors: Chee Leong Lum, Peter Douglas, Waheed Abid
  • Publication number: 20150065957
    Abstract: Medical device assemblies having a connection mechanism for securely connecting a hub to fluid storage containers in a luer slip relationship are described. An exemplary medical device includes a hub forming a cavity, a second indicating element disposed within the cavity that engages the hub. Additional features of the medical device include a second indicating element contoured to form a line contact with the hub. In a specific configuration, the hub includes a first indicating element attached to the hub and extending proximally into the cavity having a protrusion. In a more specific configuration, the medical device includes a fluid storage container that has an indication system for visually indicating optimal fluid-tight engagement of the hub and the fluid storage container.
    Type: Application
    Filed: November 11, 2014
    Publication date: March 5, 2015
    Inventors: Chee Leong Lum, Waheed Abid, Peter Douglas, Ivan Zivkovic
  • Publication number: 20140142517
    Abstract: A syringe assembly having a flexible and/or slidable flange is provided, wherein in a pre-use or packaged state, the flange is positioned substantially parallel to a barrel of the syringe assembly resulting in the syringe assembly having a smaller packaging footprint. The smaller packaging footprint allows for reduced storage space of the syringe assembly. Upon removal from a packaging and/or storage space, the flange can be slid and locked into place such that it extends in a perpendicular direction with respect to a longitudinal axis of the barrel of the syringe assembly to allow for traditional operation of the syringe assembly.
    Type: Application
    Filed: January 24, 2014
    Publication date: May 22, 2014
    Inventors: Chee Leong Lum, Eric Schiller
  • Publication number: 20140100546
    Abstract: A syringe assembly includes a syringe barrel having an exterior surface, an inside surface defining a chamber, an open proximal end, a distal end, and an outlet disposed adjacent the distal end in fluid communication with the chamber; and a plunger assembly disposed at least partially within the syringe barrel. The plunger assembly includes an elongated plunger rod and a plunger head. The elongated plunger rod is associated with the plunger head to move the plunger head within the chamber of the syringe barrel through an injection cycle. The plunger rod is adapted to move from a collapsed position extending alongside the exterior surface of the syringe barrel to an extended position engaging the plunger head to move the plunger head through the injection cycle.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 10, 2014
    Inventors: Chee Leong Lum, Eric Schiller
  • Patent number: 8636702
    Abstract: A syringe assembly having a collapsible or pivotable plunger rod with magnification properties is provided. In a pre-use or packaged state, the plunger rod is positioned substantially parallel to a barrel of the syringe assembly resulting in the syringe assembly having a reduced length and a smaller packaging footprint. The smaller packaging footprint allows for reduced storage space of the syringe assembly. Upon removal from a packaging and/or a storage space, the plunger rod can be slid or pivoted toward a proximal end of the syringe barrel and locked into place such that the syringe assembly is ready for use. The plunger rod can be shaped to provide magnification to indicia of the syringe barrel and/or contents. Alternatively, a separate magnification member can be associated with the plunger rod and/or secured about the syringe barrel.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: January 28, 2014
    Assignee: Beckton Dickinson France, S.A.S.
    Inventors: Eric Schiller, Chee Leong Lum, Flora Felsovalyi