Patents by Inventor Guanghui Zhang

Guanghui Zhang 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: 20140031788
    Abstract: Exoskeletal devices or sleeves that can be used with the delivery tube of an applicator device to help dispense fluids, typically flowable biocompatible materials such as hemostatic agents, adhesives, or sealants, onto specific sites in the human body for a medical reason are disclosed. The exoskeletal devices or sleeves are rigid, pre-shaped, and snappably or slidably affixed to the delivery tube. The exoskeletal devices or sleeves do not come into contact with the flowable biocompatible fluid being dispensed, and they can be placed at any position along the delivery tube to address different application situations. Once the exoskeletal device or sleeve is in place, it can optionally be locked onto the delivery tube to prevent further sliding under stresses when pushed against tissue. Multiple exoskeletal devices or sleeves can also be used to achieve more complicated shapes for hard-to-reach anatomical sites.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 30, 2014
    Inventors: An-Min Jason Sung, Dennis D. Jamiolkowski, Guanghui Zhang
  • Publication number: 20130316974
    Abstract: The present invention is directed to hemostatic material containing compacted ORC powder comprising particles having an average aspect ratio from about 1 to about 18, wherein said compacted ORC powder have preferably been processed in a compaction device, such as a ball milled ORC powder. The present invention further relates to methods of making the hemostatic material and a method of treating a wound by applying the hemostatic powder onto and/or into the wound of a patient.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Inventors: Yi-Lan Wang, Guanghui Zhang
  • Patent number: 8551941
    Abstract: The present invention includes both sterilized and unsterilized hemostatic compositions that contain a continuous, biocompatible liquid phase having a solid phase of particles of a biocompatible polymer suitable for use in hemostasis and which is substantially insoluble in the liquid phase, and a discontinuous, biocompatible gaseous phase, each of which is substantially homogenously dispersed throughout the continuous liquid phase, methods for making such compositions, medical devices that contain sterilized hemostatic compositions disposed therein and methods of making such devices.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: October 8, 2013
    Assignee: Ethicon, Inc.
    Inventors: Sanyog M. Pendharkar, Anne J. Gorman, Guanghui Zhang, Ada Rivera, Dwayne Lee Looney, Thomas Lee Craven
  • Publication number: 20130164360
    Abstract: The present invention is directed to a hemostatic material comprising a scaffold and a galvanic particulate. The galvanic particulate comprises particles made of at least two dissimilar metals. The scaffold is preferably a biocompatible polysaccharide-based hemostatic, such as a chitosan or cellulosic based hemostatic like ORC.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Inventors: Yi-Lan Wang, Ying Sun, Guanghui Zhang, Chunlin Yang
  • Publication number: 20130042043
    Abstract: An arbiter detects waiting states of N buffers holding direct memory access (DMA) requests, and detects an availability of R core channels of a core R-channel DMA memory. The arbiter, based on the detection, dynamically grants up to R of the N buffers access to the R core channels. An N-to-R controller communicates DMA requests from the N buffers to currently granted ones of the R core channels, and maintains a location record of different data from each of the N buffers being written into different ones of the R core channels.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 14, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Guanghui Zhang, Muralidhar Krishnamoorthy, Tomer Rafael Ben-Chen, Srinivas Maddali
  • Publication number: 20130004478
    Abstract: The present invention is directed to a hemostatic or tissue sealing material having (a) a peptide having a sequence SEQ ID NO: 1 or an amino acid analog sequence thereof, and (b) a scaffold for said peptide or amino acid analogue sequence. The scaffold is preferably hemostatic, such as a natural or genetically engineered absorbable polymer, a synthetic absorbable polymer, or combinations thereof. The natural or genetically engineered absorbable polymers can be selected from the group consisting of a protein, a polysaccharide, or combinations thereof.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Inventors: Yi-Lan Wang, Guanghui Zhang
  • Publication number: 20120230273
    Abstract: A method for indicating HARQ timing relation is provided by the present disclosure. First, an evolved NodeB (eNB) notifies a user equipment (UE) to enable an uplink/downlink subframe dynamic conversion function. Second, the eNB converts uplink and downlink subframes dynamically, and notifies the UE of the HARQ timing relation corresponding to the converted uplink/downlink subframe configuration. Finally, the eNB and UE communicate with each other according to the said HARQ timing relation. The dynamic flexible subframe is highly efficiently used in the present disclosure, and the object of changing the frame structure dynamically according to data service change more accurately and timely can be reached.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 13, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hong He, Yingyang Li, Chengjun Sun, Guanghui Zhang
  • Patent number: 8265044
    Abstract: A method using a frame structure which supports relay for wireless transmission, which divides the time slots of a sub-frame into some zones, in which the data is transmitted using the manner of TDD, wherein further including that at least one time slot in a sub-frame is set as a hybrid zone; the transmission of the data is realized through frequency division multiplexing the access link and relay link in the hybrid zone of the sub-frame; and also the multi-hop relay is supported under the two work manners of relay in sub-frame and relay in frame.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: September 11, 2012
    Assignee: China Academy of Telecommunications Technology
    Inventors: Guanghui Zhang, Yongbin Xie, Yingmin Wang, Shaohui Sun, Yang Yu
  • Patent number: 8119160
    Abstract: The present inventions includes a plurality of packed particles that contain interstitial pores, where the interstitial pores have a pore volume and a median pore diameter effective to provide improved absorption of physiological fluids or an aqueous media when placed in contact therewith, compared to a plurality of unpacked particles of the same material, where the particles are made of a biocompatible material and hemostatic agents and have an average diameter suitable for use in providing hemostasis to a site of a body of a mammal requiring hemostasis, hemostatic compositions containing such plurality of packed particles, methods of making such particles and compositions and medical devices suitable for delivering and containing the hemostatic plurality of particles and/or composition to a site of a body.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: February 21, 2012
    Assignee: Ethicon, Inc.
    Inventors: Dwayne Lee Looney, Guanghui Zhang, Sonia Martins
  • Patent number: 7927626
    Abstract: The present invention is directed to processes of making flowable hemostatic compositions and devices that include the flowable hemostatic composition disposed therein, where a volume of a biocompatible liquid, a volume of a biocompatible gas, and an amount of solid particles of a biocompatible polymer are mixed together to form a substantially homogenous composition including a discontinuous gas phase and the solid particles substantially homogenously dispersed throughout a continuous liquid phase to form a flowable hemostatic composition, and the composition then transferred into a device suitable for applying the flowable hemostatic composition to a site of a body requiring hemostasis under conditions effective to maintain the substantially homogeneous dispersion of the gas phase and the solid particles throughout the liquid phase.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: April 19, 2011
    Assignee: Ethicon, Inc.
    Inventors: Sanyog M. Pendharkar, Anne J. Gorman, Dwayne. Lee Looney, Guanghui Zhang, Ada Rivera
  • Publication number: 20110027378
    Abstract: The present invention includes both sterilized and unsterilized hemostatic compositions that contain a continuous, biocompatible liquid phase having a solid phase of particles of a biocompatible polymer suitable for use in hemostasis and which is substantially insoluble in the liquid phase, and a discontinuous, biocompatible gaseous phase, each of which is substantially homogenously dispersed throughout the continuous liquid phase, methods for making such compositions, medical devices that contain sterilized hemostatic compositions disposed therein and methods of making such devices.
    Type: Application
    Filed: October 11, 2010
    Publication date: February 3, 2011
    Applicant: ETHICON, INC.
    Inventors: Sanyog M. PENDHARKAR, Anne J. GORMAN, Guanghui ZHANG, Ada RIVERA, Dwayne Lee LOONEY, Thomas Lee CRAVEN
  • Patent number: 7833965
    Abstract: The present invention includes both sterilized and unsterilized hemostatic compositions that contain a continuous, biocompatible liquid phase having a solid phase of particles of a biocompatible polymer suitable for use in hemostasis and which is substantially insoluble in the liquid phase, and a discontinuous, biocompatible gaseous phase, each of which is substantially homogenously dispersed throughout the continuous liquid phase, methods for making such compositions, medical devices that contain sterilized hemostatic compositions disposed therein and methods of making such devices.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: November 16, 2010
    Assignee: Ethicon, Inc.
    Inventors: Sanyog M. Pendharkar, Anne J. Gorman, Guanghui Zhang, Ada Rivera, Dwayne Lee Looney, Thomas Lee Craven
  • Publication number: 20100189081
    Abstract: A method using a frame structure which supports relay for wireless transmission, which divides the time slots of a sub-frame into some zones, in which the data is transmitted using the manner of TDD, wherein further including that at least one time slot in a sub-frame is set as a hybrid zone; the transmission of the data is realized through frequency division multiplexing the access link and relay link in the hybrid zone of the sub-frame; and also the multi-hop relay is supported under the two work manners of relay in sub-frame and relay in frame.
    Type: Application
    Filed: July 8, 2008
    Publication date: July 29, 2010
    Applicant: Da Tang Mobile Communications Equipment Co., Ltd.
    Inventors: Guanghui Zhang, Yongbin Xie, Yingmin Wang, Shaohui Sun, Yang Yu
  • Publication number: 20080260810
    Abstract: The present invention is directed towards a hemostat comprising an absorbable foam, an absorbable woven or knitted fabric, thrombin and/or fibrinogen.
    Type: Application
    Filed: October 17, 2005
    Publication date: October 23, 2008
    Inventors: Guanghui Zhang, Sonia Martins, Robin Barone
  • Patent number: 7279177
    Abstract: The present invention is directed to a hemostatic wound dressing that utilizes a fibrous, fabric substrate made from carboxylic-oxidized cellulose and containing a first surface and a second surface opposing the first surface, the fabric having flexibility, strength and porosity effective for use as a hemostat; and further having a porous, polymeric matrix substantially homogeneously distributed on the first and second surfaces and through the fabric, the porous, polymeric matrix being made of a biocompatible, water-soluble or water-swellable cellulose polymer, wherein prior to distribution of the polymeric matrix on and through the fabric, the fabric contains about 3 percent by weight or more of water-soluble oligosaccharides.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: October 9, 2007
    Assignee: Ethicon, Inc.
    Inventors: Dwayne Lee Looney, Jian Xin Guo, Guanghui Zhang, Sanyog Manohar Pendharkar, Anne Jessica Gorman, Thomas Lee Craven, Michelle Bermel
  • Patent number: 7252837
    Abstract: The present invention is directed to wound dressings that contain a fabric made from biocompatible polymeric fibers and having flexibility, strength and porosity effective for use as a hemostat, and a porous, polymeric matrix prepared from a biocompatible, water-soluble or water-swellable polymer dispersed through the fabric; and to methods of making such wound dressings.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: August 7, 2007
    Assignee: Ethicon, Inc.
    Inventors: Jian Xin Guo, Dwayne Lee Looney, Guanghui Zhang, Anne Jessica Gorman
  • Patent number: 7138441
    Abstract: Blends made of bioabsorbable materials including glycolide, lactide, caprolactone, dioxanone, trimethylene carbonate, alkylene glycols, esteramides, etc., and polymers and copolymers thereof with cyanoacrylates are described. Processes for making the polymers and surgical articles made totally or in part from such polymers, including sutures, are also described.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: November 21, 2006
    Assignee: United States Surgical Corporation
    Inventor: Guanghui Zhang
  • Publication number: 20060257458
    Abstract: The present invention is directed to a reinforced absorbable multilayered hemostatic wound dressing comprising a first absorbable nonwoven fabric, a second absorbable woven or knitted fabric, thrombin and/or fibrinogen.
    Type: Application
    Filed: April 10, 2006
    Publication date: November 16, 2006
    Inventors: Anne Gorman, Sanyog Pendharkar, Guanghui Zhang, Liliana Bar, Israel Nur, Roberto Meidler
  • Publication number: 20060178506
    Abstract: Incorporation of certain amino acid analogs into polypeptides produced by cells which do not-ordinarily provide polypeptides containing such amino acid analogs is accomplished by subjecting the cells to growth media containing such amino acid analogs. The degree of incorporation can be regulated by adjusting the concentration of amino acid analogs in the media and/or by adjusting osmolality of the media. Such incorporation allows the chemical and physical characteristics of polypeptides to be altered and studied. In addition, nucleic acid and corresponding proteins including a domain from a physiologically active peptide and a domain from an extracellular matrix protein which is capable of providing a self-aggregate are provided. Human extracellular matrix proteins capable of providing a self-aggregate collagen are provided which are produced by prokaryotic cells. Preferred codon usage is employed to produce extracellular matrix proteins in prokaryotics.
    Type: Application
    Filed: February 1, 2005
    Publication date: August 10, 2006
    Inventors: Elliott Gruskin, Douglas Buechter, Guanghui Zhang, Kevin Connolly
  • Publication number: 20060127488
    Abstract: The present invention includes both sterilized and unsterilized hemostatic compositions that contain a continuous, biocompatible liquid phase having a solid phase of particles of a biocompatible polymer suitable for use in hemostasis and which is substantially insoluble in the liquid phase, and a discontinuous, biocompatible gaseous phase, each of which is substantially homogenously dispersed throughout the continuous liquid phase, methods for making such compositions, medical devices that contain sterilized hemostatic compositions disposed therein and methods of making such devices.
    Type: Application
    Filed: February 7, 2006
    Publication date: June 15, 2006
    Inventors: Sanyog Pendharkar, Anne Gorman, Guanghui Zhang, Ada Rivera, Dwayne Looney, Thomas Craven