Patents by Inventor Hieu V. Le

Hieu V. Le 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: 10692003
    Abstract: A method for determining a placement for machine learning model operations across multiple hardware devices is described.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 23, 2020
    Assignee: Google LLC
    Inventors: Samuel Bengio, Mohammad Norouzi, Benoit Steiner, Jeffrey Adgate Dean, Hieu Hy Pham, Azalia Mirhoseini, Quoc V. Le, Naveen Kumar, Yuefeng Zhou, Rasmus Munk Larsen
  • Patent number: 10582946
    Abstract: A hydrodynamic catheter includes a catheter body with a catheter lumen and an infusion tube extending within the catheter body, the infusion tube configured for coupling with a fluid source near the catheter proximal portion. An inflow orifice and an outflow orifice are positioned at locations along a catheter body perimeter. A fluid jet emanator is in fluid communication with the infusion tube, where the fluid jet emanator includes one or more jet orifices configured to direct one or more fluid jets through the catheter lumen from near the inflow orifice toward the outflow orifice. A pivot cylinder located along the catheter body perimeter is positioned distal relative to one or more of the fluid jet emanator, the inflow orifice, or the outflow orifice.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: March 10, 2020
    Assignee: BOSTON SCIENTIFIC LIMITED
    Inventors: Michael J. Bonnette, Hieu V. Le
  • Publication number: 20190392294
    Abstract: A method for determining a placement for machine learning model operations across multiple hardware devices includes receiving data specifying machine learning operations, and determining a placement that assigns each of the operations specified by the data to a respective device from the multiple hardware devices.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 26, 2019
    Inventors: Benoit Steiner, Anna Darling Goldie, Jeffrey Adgate Dean, Hieu Hy Pham, Azalia Mirhoseini, Quoc V. Le
  • Patent number: 10438113
    Abstract: A method for determining a placement for machine learning model operations across multiple hardware devices includes receiving data specifying machine learning operations, and determining a placement that assigns each of the operations specified by the data to a respective device from the multiple hardware devices.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: October 8, 2019
    Assignee: Google LLC
    Inventors: Benoit Steiner, Anna Darling Goldie, Jeffrey Adgate Dean, Hieu Hy Pham, Azalia Mirhoseini, Quoc V. Le
  • Publication number: 20190303761
    Abstract: A method for determining a placement for machine learning model operations across multiple hardware devices is described.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 3, 2019
    Inventors: Samy Bengio, Mohammad Edward Norouzi, Benoit Steiner, Jeffrey Adgate Dean, Hieu Hy Pham, Azalia Mirhoseini, Quoc V. Le, Naveen Kumar, Yuefeng Zhou, Rasmus Munk Larsen
  • Publication number: 20170340343
    Abstract: A hydrodynamic catheter includes a catheter body with a catheter lumen and an infusion tube extending within the catheter body, the infusion tube configured for coupling with a fluid source near the catheter proximal portion. An inflow orifice and an outflow orifice are positioned at locations along a catheter body perimeter. A fluid jet emanator is in fluid communication with the infusion tube, where the fluid jet emanator includes one or more jet orifices configured to direct one or more fluid jets through the catheter lumen from near the inflow orifice toward the outflow orifice. A pivot cylinder located along the catheter body perimeter is positioned distal relative to one or more of the fluid jet emanator, the inflow orifice, or the outflow orifice.
    Type: Application
    Filed: August 18, 2017
    Publication date: November 30, 2017
    Applicant: BOSTON SCIENTIFIC LIMITED
    Inventors: MICHAEL J. BONNETTE, HIEU V. LE
  • Patent number: 9737328
    Abstract: A hydrodynamic catheter includes a catheter body with a catheter lumen and an infusion tube extending within the catheter body, the infusion tube configured for coupling with a fluid source near the catheter proximal portion. An inflow orifice and an outflow orifice are positioned at locations along a catheter body perimeter. A fluid jet emanator is in fluid communication with the infusion tube, where the fluid jet emanator includes one or more jet orifices configured to direct one or more fluid jets through the catheter lumen from near the inflow orifice toward the outflow orifice. A pivot cylinder located along the catheter body perimeter is positioned distal relative to one or more of the fluid jet emanator, the inflow orifice, or the outflow orifice.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 22, 2017
    Assignee: BOSTON SCIENTIFIC LIMITED
    Inventors: Michael J. Bonnette, Hieu V. Le
  • Patent number: 9585686
    Abstract: An infusion flow guidewire and a system including an infusion flow guidewire. The minimal cross section flexible infusion flow guidewire includes a nitinol hypotube, a flexible tip having a closed distal end, a coil, a core wire and at least one distally located rearwardly directed jet orifice for infusion of fibrinolytics and for introduction of high pressure fluids for maceration and rearwardly directed flow of thrombus debris located in tortuous small sized vessels. Apparatus, some of which is removably attachable, is provided in the system for grasping members of the invention for rotational torqueing and for longitudinal actuation along and within the vasculature.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 7, 2017
    Assignee: BOSTON SCIENTIFIC LIMITED
    Inventors: John Riles, Douglas J. Ball, Michael J. Bonnette, Eric J. Thor, John L. Teschendorf, Hieu V. Le
  • Publication number: 20140094835
    Abstract: An infusion flow guidewire and a system including an infusion flow guidewire. The minimal cross section flexible infusion flow guidewire includes a nitinol hypotube, a flexible tip having a closed distal end, a coil, a core wire and at least one distally located rearwardly directed jet orifice for infusion of fibrinolytics and for introduction of high pressure fluids for maceration and rearwardly directed flow of thrombus debris located in tortuous small sized vessels. Apparatus, some of which is removably attachable, is provided in the system for grasping members of the invention for rotational torqueing and for longitudinal actuation along and within the vasculature.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicant: MEDRAD, Inc.
    Inventors: John Riles, Douglas J. Ball, Michael J. Bonnette, Eric J. Thor, John L. Teschendorf, Hieu V. Le
  • Patent number: 8608703
    Abstract: An infusion flow guidewire system and method of use. The infusion flow guidewire system includes a delivery sheath and an infusion flow guidewire. The minimal cross section flexible infusion flow guidewire includes a flexible tip having a closed distal end, a coil, a core wire and at least one distally located jet orifice for infusion of fibrinolytics and for introduction of high pressure fluids for maceration and rearwardly directed flow of thrombus debris located in tortuous small sized vessels. Apparatus, some of which is removably attachable, is provided for grasping members of the invention for rotational torqueing and for longitudinal actuation along and within the vasculature.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: December 17, 2013
    Assignee: Medrad, Inc.
    Inventors: John C. Riles, Douglas J. Ball, Michael J. Bonnette, Eric J. Thor, John L. Teschendorf, Hieu V. Le
  • Patent number: 7879022
    Abstract: A rapid exchange fluid jet thrombectomy device having a streamlined manifold and a catheter having multiple tubular segments where each tubular segment increases in flexibility in a distal direction. Torque response and pushability is enhanced by the arrangement of a proximally located tubular segment composed of a polymer-jacketed spiral metal tube in combination with an intermediate tubular section and a distal tubular section each having different degrees of flexibility. A guidewire tube exit region is provided where the intermediate tubular section joins the distal tubular section for over-the-wire guidewire usage. The polymer-jacketed spiral metal tube can extend along a partial or full length of the catheter and can include a basic continuous spiral cut which has regions of constant pitch or which has progressively increasing pitch, or in the alternative, can include an interlocking spiral cut having constant pitch regions or progressively decreasing pitch.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: February 1, 2011
    Assignee: MEDRAD, Inc.
    Inventors: Michael J. Bonnette, Michael P. Schrom, Hieu V. Le
  • Patent number: 7608063
    Abstract: A dual lumen aspiration catheter system with an aspiration catheter, a hub and a flexible strain relief, and a suction assembly. The aspiration catheter includes multiple successively connected flexible tubular components each increasing in relative flexibility in the distal direction, the most proximal tubular component connectingly extending from the hub and through the flexible strain relief. The tubular components of the aspiration catheter include, in order proximally to distally, a composite tube, an intermediate tube, a dual lumen tube, and a flexible tip tube. The dual lumen tube includes eccentrically co-located large and small tubular portions forming eccentrically co-located large and small lumens to provide a minimum cross section. The distal end of the dual lumen tube includes a convex beveled edge. The convex beveled edge and the flexible tip tube singly or jointly inflict minimal traumatic contact with a vessel wall when urged along a tortuous vascular path.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: October 27, 2009
    Assignee: MEDRAD, Inc.
    Inventors: Hieu V. Le, Michael P. Schrom, Diana L. Dutcher, Kyle R. Matson, Dean A. Swanson, Kathleen C. Grant, James T. Klee
  • Patent number: 7572244
    Abstract: A miniature cross stream thrombectomy catheter useful in small blood vessel thrombectomy procedures. An annulus near the distal end of the miniature cross stream thrombectomy catheter is formed between a hypo-tube and a proximally directed bore of a concentrically aligned flow director whereby jet orifices in the hypo-tube communicate with the annulus to direct jet flows of saline or other fluid around and about the annulus and to be directed proximally from the annulus to pass through one or more outflow orifices and thence to pass through one or more inflow orifices thereby creating an ablation flow therebetween which loosens and carries away thrombotic materials from the walls of a blood vessel.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: August 11, 2009
    Assignee: MEDRAD, Inc.
    Inventors: Stephen E. Weisel, Michael J. Bonnette, Hieu V. Le, Debra M. Kozak
  • Publication number: 20080312671
    Abstract: An infusion flow guidewire system including a delivery sheath and an infusion flow guidewire. The minimal cross section flexible infusion flow guidewire includes a nitinol hypotube, a flexible tip and distally located rearwardly directed orifices for infusion of fibrinolytics and for introduction of high pressure fluids for maceration and rearwardly directed flow of thrombus debris located in tortuous small sized vessels. Apparatus, some of which is removably attachable, is provided for grasping members of the invention for rotational torquing and for longitudinal actuation along and within the vasculature.
    Type: Application
    Filed: October 30, 2007
    Publication date: December 18, 2008
    Inventors: John C. Riles, Douglas J. Ball, Michael J. Bonnette, Eric J. Thor, John L. Teschendorf, Hieu V. Le
  • Publication number: 20080275393
    Abstract: An isolation thrombectomy catheter system where thrombus, clotted material, or the like is isolated by distally and proximally placed inflated occlusive balloons sealing a portion of the vasculature for subsequent removal of thrombus by cross stream jets. An isolation catheter accommodates either a jet assembly for ablation of thrombus and for drug or medication delivery, or accommodates a drug delivery device for introduction of lysing fluids, drugs or medications to a thrombus site. Alternating of lysing fluid delivery and ablation can be incorporated for a combined thrombectomy effort.
    Type: Application
    Filed: August 24, 2004
    Publication date: November 6, 2008
    Inventors: Michael J. Bonnette, Hieu V. Le
  • Publication number: 20080275383
    Abstract: A miniature cross stream thrombectomy catheter useful in small blood vessel thrombectomy procedures. An annulus near the distal end of the miniature cross stream thrombectomy catheter is formed between a hypo-tube and a proximally directed bore of a concentrically aligned flow director whereby jet orifices in the hypo-tube communicate with the annulus to direct jet flows of saline or other fluid around and about the annulus and to be directed proximally from the annulus to pass through one or more outflow orifices and thence to pass through one or more inflow orifices thereby creating an ablation flow therebetween which loosens and carries away thrombotic materials from the walls of a blood vessel.
    Type: Application
    Filed: August 2, 2004
    Publication date: November 6, 2008
    Inventors: Stephen E. Weisel, Michael J. Bonnette, Hieu V. Le, Debra M. Kozak
  • Patent number: 7220269
    Abstract: A thrombectomy catheter system with occluder and method of using same for removal of tissue, such as thrombus and the like, from a vessel in the body. Multiple catheters and an occluder-bearing guidewire tube at a thrombus site provide for expandable deployment of a compliant occluder against the vasculature walls distal to the thrombus. The expanded occluder is maneuvered proximally to urge thrombus into close proximity with a retractable capture cone located distally on a capture catheter where the thrombus is dislodged, entrained, and broken into pieces by the action of a fluid jet emanator and then evacuated through the capture catheter.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: May 22, 2007
    Assignee: Possis Medical, Inc.
    Inventors: Gary M. Ansel, Michael J. Bonnette, Dan T. Janse, Hieu V. Le
  • Patent number: 7169161
    Abstract: A tubular guidewire assembly having a distal occlusive device and an extended crimpable section proximate a proximal end that is adapted to connect to a gas inflation/evacuation system. The extended crimpable section can be selectively sealed at one of a plurality of separate locations to form an airtight seal of the tubular guidewire assembly. Each time a deflation of the occlusive device is desired in order to reestablish blood flow to a vessel downstream of the occlusive device, the extended crimpable section preferably is cut distal to the location of the last seal to quickly deflate the occlusive device.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: January 30, 2007
    Assignee: Possis Medical, Inc.
    Inventors: Michael J. Bonnette, Eric J. Thor, Mark L. Jenson, Rick C. Kravic, Hieu V. Le
  • Patent number: 6755803
    Abstract: A single operator exchange fluid jet thrombectomy device having an outer catheter assembly and separable and exchangeable components in the form of an inner catheter assembly allowing functioning as a rheolytic thrombectomy catheter or as a crossflow thrombectomy catheter. Embodiments include an outer catheter assembly common to any mode of usage having a guide catheter having a lumen through which a guidewire and the greater portion of a hypo-tube carrying a flow director are passed and advanced. For use as a rheolytic thrombectomy catheter, thrombus is dislodged, entrained, and broken into pieces by jets and evacuated through the lumen of the guide catheter. For use as a crossflow thrombectomy catheter, a flow director having outflow and inflow orifices is provided.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: June 29, 2004
    Assignee: Possis Medical, Inc.
    Inventors: Hieu V. Le, Michael J. Bonnette, John Edward Morris, Stephen E. Weisel, Debra M. Kozak, Robert G. Dutcher
  • Patent number: 6676637
    Abstract: A single operator exchange fluid jet thrombectomy method employing a single operator exchange fluid jet thrombectomy device having an outer catheter assembly and separable and exchangeable components in the form of an inner catheter assembly allowing functioning as a rheolytic thrombectomy catheter or as a crossflow thrombectomy catheter. The outer catheter assembly is common to any mode of usage and includes a guide catheter having a lumen through which a guidewire and the greater portion of a hypo-tube carrying a jet emanator and a flow director are passed and advanced. In the method, thrombus is dislodged, entrained, and broken into pieces by fluid jets and evacuated through the lumen of the guide catheter.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: January 13, 2004
    Assignee: Possis Medical, Inc.
    Inventors: Michael J. Bonnette, Hieu V. Le, John Edward Morris, Stephen E. Weisel, Debra M. Kozak, Robert G. Dutcher