Patents by Inventor John D. Nguyen
John D. Nguyen 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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Publication number: 20110172759Abstract: The invention relates generally to expandable medical implants for maintaining support of a body lumen and, in particular, to an axially nested, diametrically expandable, slide and lock vascular device for enlarging an occluded portion of a vessel. The axially nested vascular device desirably achieves both competitive crossing profiles while maintaining other key features, such as, for example, radial strength and luminal patency. The collapsed profile can also be made very thin without compromising radial strength. Thus, the vascular device can advantageously be deployed in small and difficult to reach areas or vessels. The axial nesting substantially eliminates radial overlap between mating structural elements thereby desirably allowing for a low, uniform profile.Type: ApplicationFiled: March 28, 2011Publication date: July 14, 2011Applicant: REVA MEDICAL, INC.Inventors: Eric V. Schmid, John D. Nguyen, Orlando Padilla, Andrew Morris, Daniel Moore, Thomas R. Jackson
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Patent number: 7963973Abstract: A tissue connector assembly comprising a multiple loop fastener movable between an open configuration and a closed configuration and a restraining device attached to the fastener for restraining the fastener in its open configuration provides for a self-closing, multiple suture fastener. A needle may be releasably attached to the fastener. A method for connecting tissues is also disclosed. The method includes inserting a fastener through tissue with the fastener being biased in an open position by a restraining device secured to the fastener, threading the fastener through more than one stitch, and removing the restraining device from the fastener.Type: GrantFiled: September 2, 2005Date of Patent: June 21, 2011Assignee: Medtronic, Inc.Inventors: John D. Nguyen, Liem Ho, Cong Thach, Laurent Schaller, Nga Doan
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Patent number: 7914574Abstract: The invention relates generally to expandable medical implants for maintaining support of a body lumen and, in particular, to an axially nested, diametrically expandable, slide and lock vascular device for enlarging an occluded portion of a vessel. The axially nested vascular device desirably achieves both competitive crossing profiles while maintaining other key features, such as, for example, radial strength and luminal patency. The collapsed profile can also be made very thin without compromising radial strength. Thus, the vascular device can advantageously be deployed in small and difficult to reach areas or vessels. The axial nesting substantially eliminates radial overlap between mating structural elements thereby desirably allowing for a low, uniform profile.Type: GrantFiled: August 2, 2005Date of Patent: March 29, 2011Assignee: REVA Medical, Inc.Inventors: Eric V. Schmid, John D. Nguyen, Orlando Padilla, Andrew Morris, Daniel Moore, Thomas R. Jackson
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Patent number: 7914544Abstract: A clip of a self-closing type is used for valve repair. The clip is generally U-shaped with two end points separated from each other when constrained to be in an open configuration, but tends to coil up to assume its natural closed configuration if the constraint is removed. At least one end point is connected through a suture to a tissue-penetrating needle. A needle holder has an outer tube and an inner member which has a slit at the front and is slidable inside the outer tube. A double-arm clip assembly with each of the end points of the clip attached through a suture to a separate needle may be used for valve repair and may contain two of such clips mutually connected by a flexible connector whereby two leaflets are held together by the connector, with the two clips each anchored to a corresponding one of the leaflets.Type: GrantFiled: December 7, 2004Date of Patent: March 29, 2011Assignee: Medtronic, Inc.Inventors: John D. Nguyen, Laurent Schaller, Art Hill
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Publication number: 20110007473Abstract: A blade server for increasing the amount of processing capacity per rack bay is disclosed. The blade server includes a housing having a top portion and a bottom portion, a first printed circuit assembly adjacent to the top portion of the housing, a second printed circuit assembly positioned in the bottom portion of the housing opposite the first printed circuit assembly, and a connector attaching the first and second printed circuit assembly to one another.Type: ApplicationFiled: March 14, 2008Publication date: January 13, 2011Inventors: John P. Franz, John D. Nguyen, Jon Kolas, Curt S. Belusar
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Publication number: 20110004298Abstract: An annuloplasty system for repairing a valve in a patient's heart comprises a surgical implant including a member having first and second end portions. The implant member further is configured and/or adapted to form a partial ring along a portion of one of the valve annulae of a patient's heart such as the mitral or tricuspid valve annulus. The implant member is axially elastic such that it can axially expand and contract and includes first and second anchors extending from the end portions of the implant member. The anchors are adapted to anchor the implant in tissue such as the mitral or tricuspid valve annulus. The system can facilitate tissue plication (e.g., of the posterior annulus of the mitral valve or the annulus of the tricuspid valve) and reinforcement of a valve annulus.Type: ApplicationFiled: September 13, 2010Publication date: January 6, 2011Applicant: MEDTRONIC, INC.Inventors: Andrew Lee, Norman Fung, John D. Nguyen, Nga T. Doan, Laurent Schaller
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Patent number: 7746654Abstract: A computer system is provided that includes a chassis, a system board coupled to the chassis, and a first connector extending from the system board at a first height and configured to receive a first printed circuit board, wherein the first printed circuit board is configured to be parallel to the system board when received by the first connector, and a second connector extending from the system board at a second height and configured to receive a second printed circuit board, wherein the second printed circuit board is configured to be parallel to the system board when received by the second connector. Other computer systems are provided that include a first mezzanine card and a second mezzanine card or multiple connectors and a plurality of printed circuit boards.Type: GrantFiled: June 7, 2007Date of Patent: June 29, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: John P. Franz, Walton S. Little, Jr., Tuan A. Pham, John D. Nguyen
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Patent number: 7744611Abstract: A clip of a self-closing type is used for valve repair. The clip is generally U-shaped with two end points separated from each other when it is constrained to be in an open configuration, but tends to coil up to assume its natural closed configuration if the constraint is removed. At least one end point is connected through a suture to a tissue-penetrating needle. A needle holder has an outer tube and an inner member which has a slit at the front and is slidable inside the outer tube. They are designed such that the slit can grab the needle tightly or release it as the inner member is moved backward or forward with respect to the outer tube. With the needle secured at the front, the needle holder is passed through a cannula inserted through an incision and the needle penetrates the leaflets such that the clip can be positioned with its end points hooked to the pair of leaflets to be stitched together.Type: GrantFiled: November 19, 2003Date of Patent: June 29, 2010Assignee: Medtronic, Inc.Inventors: John D. Nguyen, Laurent Schaller, Arthur Hill
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Patent number: 7741976Abstract: A method for processing meter data into a common format includes receiving, in a first transmission, meter data using a satellite communications network in a common protocol, the meter data representing information read at time intervals from associated utility meters in at least two data formats, each data format associated with a type of utility meter. The meter data in the plurality of formats is processed into a common data format. The meter data is stored in the common format as interval data for transmission to a customer.Type: GrantFiled: December 16, 2005Date of Patent: June 22, 2010Assignee: Hunt Power, L.P.Inventors: Gary C. Crider, Carol Gomez, John D. Nguyen, Paul E. Hake, Kantol Khek
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Patent number: 7649751Abstract: An alignment system for a mezzanine-type printed circuit board is provided. The alignment system includes tab portions formed from the insulating material of the printed circuit board, in which the tab portions engage receptacles and limit movement of the printed circuit board.Type: GrantFiled: June 25, 2007Date of Patent: January 19, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: John D. Nguyen, Jon Kolas
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Patent number: 7561439Abstract: A first slot connector is mounted within a housing of an electronic system and is for connecting to a first plug-in card. A mezzanine board is installed within the housing. A second slot connector is mounted on the mezzanine board for connecting to a second plug-in card. The first and second plug-in cards align with similarly-shaped slot access panels in the electronic system.Type: GrantFiled: October 28, 2005Date of Patent: July 14, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Orville H. Orr, Edgar Hance, Ho M. Lai, John D. Nguyen, Minh H Nguyen, Christian H. Post, Karthigan Srinivasan
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Publication number: 20080313381Abstract: In accordance with the present technique, a system and method for configuring pins of an input/output (I/O) card in a host system are provided. The method includes reading configuration information from a card field replaceable unit memory and reading system configuration information from a system field replaceable unit memory. Additionally, the method includes configuring pins of a system logic of the host system to be compatible with the I/O device of the I/O card, and configuring pins of an I/O device on the I/O card to in turn configure the pins of the I/O card with a configuration setting compatible with the host system.Type: ApplicationFiled: June 13, 2007Publication date: December 18, 2008Inventors: Kevin B. Leigh, John D. Nguyen, James R. Duncan, Binh Nguyen
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Publication number: 20080304223Abstract: A computer system is provided that includes a chassis, a system board coupled to the chassis, and a first connector extending from the system board at a first height and configured to receive a first printed circuit board, wherein the first printed circuit board is configured to be parallel to the system board when received by the first connector, and a second connector extending from the system board at a second height and configured to receive a second printed circuit board, wherein the second printed circuit board is configured to be parallel to the system board when received by the second connector. Other computer systems are provided that include a first mezzanine card and a second mezzanine card or multiple connectors and a plurality of printed circuit boards.Type: ApplicationFiled: June 7, 2007Publication date: December 11, 2008Inventors: John P. Franz, Walton S. Little, JR., Tuan A. Pham, John D. Nguyen
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Publication number: 20080293265Abstract: An alignment system for a mezzanine-type printed circuit board is provided. The alignment system includes tab portions formed from the insulating material of the printed circuit board, in which the tab portions engage receptacles and limit movement of the printed circuit board.Type: ApplicationFiled: June 25, 2007Publication date: November 27, 2008Inventors: John D. Nguyen, Jon Kolas
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Patent number: 7138733Abstract: A modular infrastructure for a computer server rack, comprising modular server chassis, each chassis configured to receive a plurality of servers and two network switches. The switches are redundantly coupled to each server in the same chassis via point to point links within a data backplane. The rack further comprises redundant AC to DC power supplies configured to transmit power to a power backplane in each of the server chassis through a power bus bar. DC power is provided by both power supplies to each server in the rack through the power bus bar and a power backplane located in the same chassis. Each power supply is sufficient to power the entire rack. Servers within separate chassis are coupled into the same network by merely daisy chaining the switches in the rack. Individual servers are deployed by sliding the servers into a server chassis to engage connectors in the backplanes.Type: GrantFiled: December 13, 2001Date of Patent: November 21, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Michael C. Sanders, deceased, Vivian McDaniel-Sanders, legal representative, John D. Nguyen, Randall Pascarella
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Patent number: 7035953Abstract: The specification discloses a server system implementing hot pluggable memory boards in an architecture using X86 processors and off-the-shelf operating system, such as Windows® or Netware, which do not support hot plugging operations. Thus, the specification discloses systems and related methods for hot plugging main memory boards transparent to, and without the help of, the operating system. The operating system need only have the ability to recognize additional memory in order to use it. Moreover, the specification discloses a related set of memory error detection and correction techniques, again which are implementing transparent to, and without the help of, the operating system.Type: GrantFiled: June 25, 2002Date of Patent: April 25, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jeoff M. Krontz, Kevin G. Depew, John D. Nguyen, David F. Heinrich, David W. Engler, Vincent Nguyen, Randolph O. Dow, Owais Kidwai
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Patent number: 7028215Abstract: A computer system implements hot mirroring for main system memory. That is, the computer system permits a user to hot plug a new memory board into the system and the system will respond by switching to a mirrored memory mode in which write cycles are performed to both memory boards (new and old). Once a new board is hot plugged into the system, the contents of the old board are copied over, in a background mode, to the new board so that both boards will have the same data. Because this background copying process may take a non-trivial amount of time and may detrimentally interfere with other system traffic, the system a user to exert control over the relative speed of the background copying so as to trade-off the time it takes to switch over to the mirroring mode versus the impact on on-going system behavior.Type: GrantFiled: June 25, 2002Date of Patent: April 11, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kevin G. Depew, Jeoff M. Krontz, John D. Nguyen, David F. Heinrich, David W. Engler
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Patent number: 6945980Abstract: A tissue connector assembly comprising a multiple loop fastener movable between an open configuration and a closed configuration and a restraining device attached to the fastener for restraining the fastener in its open configuration provides for a self-closing, multiple suture fastener. A needle may be releasably attached to the fastener. A method for connecting tissues is also disclosed. The method includes inserting a fastener through tissue with the fastener being biased in an open position by a restraining device secured to the fastener, threading the fastener through more than one stitch, and removing the restraining device from the fastener.Type: GrantFiled: April 5, 2001Date of Patent: September 20, 2005Assignee: Medtronic, Inc.Inventors: John D. Nguyen, Liem Ho, Cong Thach, Laurent Schaller, Nga Doan
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Patent number: 6926730Abstract: A clip of a self-closing type is used for valve repair. The clip is generally U-shaped with two end points separated from each other when it is constrained to be in an open configuration, but tends to coil up to assume its natural closed configuration if the constraint is removed. At least one end point is connected through a suture to a tissue-penetrating needle. A needle holder has an outer tube and an inner member which has a slit at the front and is slidable inside the outer tube. They are designed such that the slit can grab the needle tightly or release it as the inner member is moved backward or forward with respect to the outer tube. With the needle secured at the front, the needle holder is passed through a cannula inserted through an incision and the needle penetrates the leaflets such that the clip can be positioned with its end points hooked to the pair of leaflets to be stitched together.Type: GrantFiled: October 10, 2000Date of Patent: August 9, 2005Assignee: Medtronic, Inc.Inventors: John D. Nguyen, Laurent Schaller, Art Hill
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Patent number: 6921407Abstract: Clips of a self-closing type are used in annuloplasty procedures. Each clip is generally U-shaped with two end points separated from each other when it is constrained to be in an open configuration, but tends to coil up to assume its naturally closed configuration if the constraint is removed. A plurality of such clips in open configurations penetrate the tissue around the annulus circumferentially and then the constraint keeping them in the open configuration is removed such that they pull the tissue together between their two end points and this tends to reduce the diameter of the annulus. Such clips may be deployed each in the form of a clip assembly, having at least one of its end points connected to a needle through a flexible member and a release mechanism by which the clip can be easily released. The needle is caused to penetrate the tissue at one position and to come out therefrom at another circumferentially separated positions.Type: GrantFiled: April 10, 2002Date of Patent: July 26, 2005Assignee: Medtronic, Inc.Inventors: John D. Nguyen, Arthur Hill, Laurent Schaller