Patents by Inventor Liem Vu

Liem Vu 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).

  • Publication number: 20240164822
    Abstract: Systems and methods for treatment of tissue including an expandable member designed to be positioned at a site of interest against tissue to be treated and to accommodate fluid set at a temperature range to affect the tissue at the site of interest; an assembly for directing the fluid set at the temperature range into the expandable member, the assembly having an input to introduce the fluid into the expandable member to circulate substantially along an entire length of the expandable member and an output spatially situated from the input to permit fluid flow to be removed from within the expandable member; and a mechanism designed to direct fluid along the assembly and through the input into the expandable member while simultaneously removing fluid from the expandable member through the output, so as to maintain substantially constant fluid pressure within the expandable member.
    Type: Application
    Filed: March 21, 2022
    Publication date: May 23, 2024
    Inventors: Lishan Aklog, Brian J. deGuzman, Richard Yazbeck, Michael Boutillette, Jim Pelletier, Liem Vu, Mack Krell, Minh Doung, Gregory Eberl
  • Patent number: 10695162
    Abstract: A system for applying a fiber matrix on a tubular member is provided. A mandrel, configured for atraumatic placement within the tubular member, is included. Methods for atraumatic placement of a mandrel into a tubular member are also provided.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: June 30, 2020
    Assignee: Xeltis AG
    Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, J. Christopher Flaherty, Liem Vu, Jerry Brightbill, Stephen Evans, Joseph Ting, David Rezac, Timothy Robinson
  • Publication number: 20180289466
    Abstract: A system for applying a fiber matrix on a tubular member is provided. A mandrel, configured for atraumatic placement within the tubular member, is included. Methods for atraumatic placement of a mandrel into a tubular member are also provided.
    Type: Application
    Filed: December 15, 2017
    Publication date: October 11, 2018
    Inventors: Lorenzo SOLETTI, Mohammed S. EL-Kurdi, Jon Mcgrath, J. Christopher Flaherty, Liem Vu, Jerry Brightbill, Stephen Evans, Joseph Ting, David Rezac, Timothy Robinson
  • Patent number: 10085829
    Abstract: An apparatus is provided for applying a restrictive fiber matrix to a conduit to create a graft device. A rotating assembly rotates the conduit, and a polymer delivery assembly delivers the restrictive fiber matrix. A controller controls the polymer deliver assembly and the rotating assembly.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: October 2, 2018
    Assignee: Neograft Technologies, Inc.
    Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, Liem Vu, J. Christopher Flaherty
  • Patent number: 9867690
    Abstract: A system for applying a fiber matrix on a tubular member is provided. A mandrel, configured for atraumatic placement within the tubular member, is included. Methods for atraumatic placement of a mandrel into a tubular member are also provided.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: January 16, 2018
    Assignee: NEOGRAFT TECHNOLOGIES, INC.
    Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, J. Christopher Flaherty, Liem Vu, Jerry Brightbill, Stephen Evans, Joseph Ting, David Rezac, Timothy Robinson
  • Publication number: 20140058194
    Abstract: A system for applying a fiber matrix on a tubular member is provided. A mandrel, configured for atraumatic placement within the tubular member, is included. Methods for atraumatic placement of a mandrel into a tubular member are also provided.
    Type: Application
    Filed: February 8, 2012
    Publication date: February 27, 2014
    Applicant: Neograft Technologies, Inc.
    Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, J. Christopher Flaherty, Liem Vu, Jerry Brightbill, Stephen Evans, Joseph Ting, David Rezac, Timothy Robinson
  • Publication number: 20130317285
    Abstract: An apparatus is provided for applying a restrictive fiber matrix to a conduit to create a graft device. A rotating assembly rotates the conduit, and a polymer delivery assembly delivers the restrictive fiber matrix. A controller controls the polymer deliver assembly and the rotating assembly.
    Type: Application
    Filed: January 13, 2012
    Publication date: November 28, 2013
    Applicant: Neograft Technologies, Inc.
    Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, Liem Vu, J. Christopher Flaherty
  • Patent number: 8177806
    Abstract: Dilation catheters including a mechanism used in, for example, removing gas or air from the catheters are disclosed. A dilation catheter may include an elongated tubular member having a distal end and a proximal end, a proximal handle proximate the proximal end of the tubular member, and an inflatable balloon proximate the distal end of the tubular member with inflatable balloon being in fluid communication with a fluid port to supply inflation liquid to the inflatable balloon. The inflatable balloon may include an opening for permitting gas to exit the inflatable balloon. In the proximate location of the opening, an expandable material or a barrier material that permits gas to exit through the opening, while retaining inflation liquid in the inflatable balloon.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: May 15, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Yem Chin, Paul Scopton, Liem Vu
  • Publication number: 20100069949
    Abstract: Dilation catheters including a mechanism used in, for example, removing gas or air from the catheters are disclosed. A dilation catheter may include an elongated tubular member having a distal end and a proximal end, a proximal handle proximate the proximal end of the tubular member, and an inflatable balloon proximate the distal end of the tubular member with inflatable balloon being in fluid communication with a fluid port to supply inflation liquid to the inflatable balloon. The inflatable balloon may include an opening for permitting gas to exit the inflatable balloon. In the proximate location of the opening, an expandable material or a barrier material that permits gas to exit through the opening, while retaining inflation liquid in the inflatable balloon.
    Type: Application
    Filed: November 20, 2009
    Publication date: March 18, 2010
    Inventors: Yem Chin, Paul Scopton, Liem Vu
  • Patent number: 7661541
    Abstract: A non-woven polymeric matrix for separating leukocytes from a blood sample includes a non-woven three dimensional matrix formed from polymeric fibers having a predetermined pore volume fraction including a defined channel configuration, a predetermined pore size in the range of from about 10 ?m to about 250 ?m, and a plurality of connections between the plurality of fibers. The matrix is configured so as to remove at least about 98% of leukocytes from at least one unit of packed red blood cells. Methods of making and using the matrix are also provided.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: February 16, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Kinh-Luan (Lenny) D. Dao, Yem Chin, Sheng-ping (Samuel) Zhong, Kshitij Mohan, Liem Vu
  • Patent number: 7641631
    Abstract: Dilation catheters including a mechanism used in, for example, removing gas or air from the catheters are disclosed. A dilation catheter may include an elongated tubular member having a distal end and a proximal end, a proximal handle proximate the proximal end of the tubular member, and an inflatable balloon proximate the distal end of the tubular member with inflatable balloon being in fluid communication with a fluid port to supply inflation liquid to the inflatable balloon. The inflatable balloon may include an opening for permitting gas to exit the inflatable balloon. In the proximate location of the opening, an expandable material or a barrier material that permits gas to exit through the opening, while retaining inflation liquid in the inflatable balloon.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: January 5, 2010
    Assignee: SCIMED Life Systems, Inc.
    Inventors: Yem Chin, Paul Scopton, Liem Vu
  • Publication number: 20070196313
    Abstract: A composition comprising a cleanser base and a plurality of film pieces, wherein the composition has a moisture content of about 22% or less. Also, a method of making a composition, comprising the steps of combining pieces of film with a cleansing material to make a cleansing mixture, and forming the mixture into a product of desired shape and size. Also, A method of delivering an active material during cleansing, comprising cleansing with water and a composition, wherein the composition comprises a plurality of film pieces, said film pieces comprising an active material and a polymer selected from water-soluble polymers, water-dispersible polymers, and combinations thereof.
    Type: Application
    Filed: August 18, 2006
    Publication date: August 23, 2007
    Inventors: Diana Scala, Liem Vu, Thomas Boyd, Regina Hourigan, Sayed Ibrahim, Ariel Haskel
  • Publication number: 20070010836
    Abstract: Endoscopic devices and methods used for fastening multiple tissue layers, such as, for example, an endoscopic fundoplication procedure, are disclosed. The endoluminal device includes a tissue fastener, a flexible needle having means for grasping and releasing a portion of the tissue fastener, and a deflector for deflecting and guiding the needle toward the multiple tissue layers.
    Type: Application
    Filed: September 15, 2006
    Publication date: January 11, 2007
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Sergey Grigoryants, Liem Vu
  • Publication number: 20060261005
    Abstract: A non-woven polymeric matrix for separating leukocytes from a blood sample includes a non-woven three dimensional matrix formed from polymeric fibers having a predetermined pore volume fraction including a defined channel configuration, a predetermined pore size in the range of from about 10 ?m to about 250 ?m, and a plurality of connections between the plurality of fibers. The matrix is configured so as to remove at least about 98% of leukocytes from at least one unit of packed red blood cells. Methods of making and using the matrix are also provided.
    Type: Application
    Filed: July 31, 2006
    Publication date: November 23, 2006
    Inventors: Kinh-Luan (Lenny) Dao, Yem Chin, Sheng-ping (Samuel) Zhong, Kshitij Mohan, Liem Vu
  • Patent number: 7083697
    Abstract: A non-woven polymeric matrix for separating leukocytes from a blood sample includes a non-woven three dimensional matrix formed from polymeric fibers having a predetermined pore volume fraction including a defined channel configuration, a predetermined pore size in the range of from about 10 ?m to about 250 ?m, and a plurality of connections between the plurality of fibers. The matrix is configured so as to remove at least about 98% of leukocytes from at least one unit of packed red blood cells. Methods of making and using the matrix are also provided.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: August 1, 2006
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Kinh-Luan (Lenny) D. Dao, Yem Chin, Sheng-ping (Samuel) Zhong, Kshitij Mohan, Liem Vu
  • Publication number: 20060135850
    Abstract: The invention relates to an endoscope channel cap that may be used separately with two or more endoscopes each having a cap interface portion with a different configuration. The channel cap also may include one or more seals to maintain insufflation pressure both when an endoscopic instrument is inserted in a working channel of the endoscope and when the instrument is not inserted in the channel.
    Type: Application
    Filed: December 29, 2005
    Publication date: June 22, 2006
    Inventors: Adam Cohen, John Golden, Liem Vu
  • Publication number: 20050182359
    Abstract: Dilation catheters including a mechanism used in, for example, removing gas or air from the catheters are disclosed. A dilation catheter may include an elongated tubular member having a distal end and a proximal end, a proximal handle proximate the proximal end of the tubular member, and an inflatable balloon proximate the distal end of the tubular member with inflatable balloon being in fluid communication with a fluid port to supply inflation liquid to the inflatable balloon. The inflatable balloon may include an opening for permitting gas to exit the inflatable balloon. In the proximate location of the opening, an expandable material or a barrier material that permits gas to exit through the opening, while retaining inflation liquid in the inflatable balloon.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 18, 2005
    Inventors: Yem Chin, Paul Scopton, Liem Vu
  • Publication number: 20050171402
    Abstract: The invention relates to an endoscope channel cap that may be used separately with two or more endoscopes each having a cap interface portion with a different configuration. The channel cap also may include one or more seals to maintain insufflation pressure both when an endoscopic instrument is inserted in a working channel of the endoscope and when the instrument is not inserted in the channel.
    Type: Application
    Filed: January 29, 2004
    Publication date: August 4, 2005
    Inventors: Adam Cohen, John Golden, Liem Vu
  • Publication number: 20050054945
    Abstract: The invention includes a forceps and collection assembly for acquiring and storing a plurality of tissue samples in a single pass, and accompanying mechanisms for use with the forceps and collection assembly. The accompanying mechanisms include an endoscope working channel cap assembly configured to minimize compression of a pouch of the forceps and collection assembly as it traverses a seal of the cap assembly, and a flush adapter configured to be coupled to the pouch so as to assist in removing tissue samples in the pouch by flowing fluid through the pouch.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 10, 2005
    Inventors: Adam Cohen, John Golden, Liem Vu
  • Publication number: 20050043758
    Abstract: A medical instrument has a tubular member having a distal end and a proximal end, a handle attached to the proximal end of the tubular member, a distal assembly including a pivot and an end effector assembly supported on the pivot. The end effector assembly has a pair of end effectors. The medical instrument also includes an elongate member corresponding to each of the pair of end effectors. Each elongate member extends through the tubular member and has a proximal end attached to the handle and a distal end attached to the end effector assembly.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 24, 2005
    Inventors: John Golden, Liem Vu