Patents by Inventor Dwayne Lee Looney
Dwayne Lee Looney 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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Patent number: 8709463Abstract: The present invention includes compositions suitable for use in a hemostatic device and hemostatic devices utilizing such compositions, as well as methods of making the compositions and the medical devices utilizing such compositions where the compositions contain biocompatible, oxidized cellulose particles having an average designated nominal particle size of about 0.035-4.35 mm and a biocompatible, water-soluble or water-swellable polysaccharide porous binder component.Type: GrantFiled: June 16, 2006Date of Patent: April 29, 2014Assignee: Ethicon, Inc.Inventors: Dwayne Lee Looney, Kenneth Troger, Bruce Lamb, Benjamin Walthall
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Patent number: 8551941Abstract: 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: GrantFiled: October 11, 2010Date of Patent: October 8, 2013Assignee: Ethicon, Inc.Inventors: Sanyog M. Pendharkar, Anne J. Gorman, Guanghui Zhang, Ada Rivera, Dwayne Lee Looney, Thomas Lee Craven
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Patent number: 8119160Abstract: 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: GrantFiled: March 11, 2005Date of Patent: February 21, 2012Assignee: Ethicon, Inc.Inventors: Dwayne Lee Looney, Guanghui Zhang, Sonia Martins
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Patent number: 7927626Abstract: 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: GrantFiled: July 21, 2004Date of Patent: April 19, 2011Assignee: Ethicon, Inc.Inventors: Sanyog M. Pendharkar, Anne J. Gorman, Dwayne. Lee Looney, Guanghui Zhang, Ada Rivera
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Publication number: 20110027378Abstract: 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: ApplicationFiled: October 11, 2010Publication date: February 3, 2011Applicant: ETHICON, INC.Inventors: Sanyog M. PENDHARKAR, Anne J. GORMAN, Guanghui ZHANG, Ada RIVERA, Dwayne Lee LOONEY, Thomas Lee CRAVEN
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Patent number: 7833965Abstract: 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: GrantFiled: February 7, 2006Date of Patent: November 16, 2010Assignee: Ethicon, Inc.Inventors: Sanyog M. Pendharkar, Anne J. Gorman, Guanghui Zhang, Ada Rivera, Dwayne Lee Looney, Thomas Lee Craven
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Patent number: 7279177Abstract: 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: GrantFiled: March 25, 2003Date of Patent: October 9, 2007Assignee: Ethicon, Inc.Inventors: Dwayne Lee Looney, Jian Xin Guo, Guanghui Zhang, Sanyog Manohar Pendharkar, Anne Jessica Gorman, Thomas Lee Craven, Michelle Bermel
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Patent number: 7252837Abstract: 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: GrantFiled: June 28, 2002Date of Patent: August 7, 2007Assignee: Ethicon, Inc.Inventors: Jian Xin Guo, Dwayne Lee Looney, Guanghui Zhang, Anne Jessica Gorman
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Patent number: 7019191Abstract: The present invention is directed to methods of making wound dressings that include the steps of contacting a fabric substrate having properties effective for use as a hemostat and containing fibers prepared from a biocompatible polymer, with a solution of a water-soluble or water-swellable biocompatible polymer under conditions effective to distribute the polymer solution substantially homogenously on and through the fabric substrate, transferring the fabric substrate to a lyophilization unit under conditions effective to maintain the homogeneous distribution on and throughout the substrate, and lyophilizing the fabric having the polymer solution distributed on and there through.Type: GrantFiled: March 25, 2003Date of Patent: March 28, 2006Assignee: Ethicon, Inc.Inventors: Dwayne Lee Looney, John Crilley, Jian Xin Guo, Guanghui Zhang, Sanyog Manohar Pendharkar
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Publication number: 20040265371Abstract: The present invention includes compositions suitable for use in a hemostatic device and hemostatic devices utilizing such compositions, as well as methods of making the compositions and the medical devices utilizing such compositions, where the compositions contain biocompatible, oxidized cellulose particles having an average designated nominal particle size of about 0.035-4.35 mm and a biocompatible, water-soluble or water-swellable polysaccharide porous binder component.Type: ApplicationFiled: June 25, 2003Publication date: December 30, 2004Inventors: Dwayne Lee Looney, Kenneth Troger, Bruce Lamb, Benjamin Walthall
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Publication number: 20040193088Abstract: The present invention is directed to methods of making wound dressings that include the steps of providing a solution of a water-soluble or water-swellable biocompatible polymer dissolved in a solvent for the polymer, providing a fabric substrate having a first surface and a second surface opposing the first surface, the fabric having properties effective for use as a hemostat and containing fibers prepared from a biocompatible polymer, contacting the fabric substrate with the polymer solution under conditions effective to distribute the polymer solution substantially homogenously on the first and second surfaces and through the fabric substrate, transferring the fabric substrate having the polymer solution substantially homogenously distributed there through to a lyophilization unit under conditions effective to maintain the homogeneous distribution on and throughout the substrate, and lyophilizing the fabric having the polymer solution distributed there through, thereby providing a porous, polymeric matrixType: ApplicationFiled: March 25, 2003Publication date: September 30, 2004Inventors: Dwayne Lee Looney, John Crilley, Jian Xin Guo, Guanghui Zhang, Sanyog Manohar Pendharkar
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Publication number: 20040120993Abstract: The present invention is directed to hemostatic wound dressings containing a fabric made from biocompatible, aldehyde-modified polysaccharide fibers; and a porous, polymeric matrix made from a biocompatible, water-soluble or water-swellable polymer, dispersed at least partially through the fabric, to methods of making such wound dressings and to methods of providing hemostasis to a wound.Type: ApplicationFiled: December 20, 2002Publication date: June 24, 2004Inventors: Guanghui Zhang, Sanyog Manohar Pendharkar, Jian Xin Guo, Dwayne Lee Looney, Anne Jessica Gorman
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Publication number: 20040106344Abstract: The present invention is directed to a hemostatic wound dressing that utilizes a fibrous, fabric substrate made from a biocompatible polymer suitable for use in the body 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 distributed on the first and second surfaces and through the fabric substrate, the porous, polymeric matrix being made of a biocompatible, water-soluble or water-swellable proteinaceous polymer.Type: ApplicationFiled: November 25, 2003Publication date: June 3, 2004Inventors: Dwayne Lee Looney, Guanghui Zhang
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Publication number: 20040005350Abstract: 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: ApplicationFiled: March 25, 2003Publication date: January 8, 2004Inventors: Dwayne Lee Looney, Jian Xin Guo, Guanghui Zhang, Sanyog Manohar Pendharkar, Anne Jessica Gorman, Thomas Lee Craven, Michelle Bermel
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Publication number: 20040001879Abstract: 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: ApplicationFiled: June 28, 2002Publication date: January 1, 2004Inventors: Jian Xin Guo, Dwayne Lee Looney, Guanghui Zhang, Anne Jessica Gorman