Patents by Inventor Debashish Chakravarthy

Debashish Chakravarthy 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: 20170112691
    Abstract: According to one embodiment, an absorbent article includes a moisture-impervious outer layer, an inner layer substantially co-extensive with the outer layer, and an absorbent layer interposed between the outer layer and the inner layer. The inner layer is treated with at least one antimicrobial booster. The absorbent layer is treated with at least one antimicrobial agent.
    Type: Application
    Filed: January 3, 2017
    Publication date: April 27, 2017
    Inventors: Min Yao, Daniel B. Love, Amin Setoodeh, Debashish Chakravarthy
  • Patent number: 9533479
    Abstract: According to one embodiment, an absorbent article includes a moisture-impervious outer layer, an inner layer substantially co-extensive with the outer layer, and an absorbent layer interposed between the outer layer and the inner layer. The inner layer is treated with at least one antimicrobial booster. The absorbent layer is treated with at least one antimicrobial agent.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: January 3, 2017
    Assignee: Medline Industries, Inc.
    Inventors: Min Yao, Daniel B. Love, Amin Setoodeh, Debashish Chakravarthy
  • Publication number: 20150265741
    Abstract: A wound management system can comprise a surgically acceptable adhesive disposed over a wound and a surgically acceptable film repositionably disposed over the surgically acceptable adhesive, and methods of managing a wound involving the same.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Applicant: Medline Industries, Inc.
    Inventors: Angie Duncan, Bridget DONAVAN, Debashish CHAKRAVARTHY, Maria MILLER
  • Publication number: 20150080815
    Abstract: A wound dressing makes use of a polysaccharide, such as Manuka honey, in combination with collagen in order to suppress the efficacy of matrix metalloproteinases enzymes (“MMPs”) present in chronic wounds. The mixture is applied to an absorbent surface that is designed to absorb the mixed polysaccharide only partially.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: MEDLINE INDUSTRIES, INC.
    Inventors: Debashish Chakravarthy, Andrew J. Ford
  • Publication number: 20150079196
    Abstract: A wound dressing makes use of polysaccharides, including the formation of a range of variable viscosity mixtures that use a solid polysaccharide such as medical grade cane sugar and a liquid polysaccharide such as honey, both of which have inherent beneficial properties for wound healing. The mixture is applied to an absorbent surface that is designed to absorb the mixed polysaccharide only partially.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: MEDLINE INDUSTRIES, INC.
    Inventors: Debashish Chakravarthy, Andrew J. Ford
  • Publication number: 20140018716
    Abstract: A method (400) of manufacturing a wound dressing is disclosed that includes obtaining alginate fibers (108) and the step (404) of spraying either the alginate fibers (108) or a dressing or dressing layer (610) of the alginate fibers with an aqueous solution (801) comprising a polysaccharide, which can be carboxymethylcellulose. The step of spraying can occur while the alginate fibers, dressing, or dressing layer are wet. A step (405) of flash drying can follow to remove the solute of the aqueous solution to leave the polysaccharide along the alginate. The step of spraying can be selective, such that only portions of the dressing layer include the polysaccharide.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 16, 2014
    Inventor: Debashish Chakravarthy
  • Publication number: 20100286641
    Abstract: According to one embodiment, an absorbent article includes a moisture-impervious outer layer, an inner layer substantially co-extensive with the outer layer, and an absorbent layer interposed between the outer layer and the inner layer. The inner layer is treated with at one least substance including dimethicone and/or at least one antimicrobial booster. The absorbent layer is treated with at least one antimicrobial agent.
    Type: Application
    Filed: May 8, 2009
    Publication date: November 11, 2010
    Applicant: Medline Industries, Inc.
    Inventors: MIN Yao, Daniel B. Love, Amin Setoodeh, Debashish Chakravarthy
  • Publication number: 20100204667
    Abstract: A composite wound dressing comprising an absorbent portion coupled to the vapor permeable backing with a first adhesive and a wound contact portion having a first portion coupled to the absorbent portion with a second adhesive, and the wound contact portion having a second portion coupled to the vapor permeable backing with the first adhesive is disclosed. Further a skin securement portion coupled to the backing portion with the first adhesive, the skin securement portion including a semi-self adherent adhesive, and a void having a first size, wherein at least a portion of absorbent is accessible through the void. The wound contact portion has a size greater than the first size of the void.
    Type: Application
    Filed: January 6, 2010
    Publication date: August 12, 2010
    Applicant: Medline Ind.
    Inventor: Debashish Chakravarthy
  • Publication number: 20100069861
    Abstract: According to one embodiment, an absorbent article includes a moisture-impervious outer layer, an inner layer substantially co-extensive with the outer layer, and an absorbent layer interposed between the outer layer and the inner layer. The inner layer is treated with at least one antimicrobial booster. The absorbent layer is treated with at least one antimicrobial agent.
    Type: Application
    Filed: September 18, 2008
    Publication date: March 18, 2010
    Inventors: Min Yao, Daniel B. Love, Amin Setoodeh, Debashish Chakravarthy
  • Patent number: 5691423
    Abstract: A polymeric composition capable of releasing nitric oxide comprises a polysaccharide including a nitric oxide-releasing N.sub.2 O.sub.2.sup.- functional group bound to the polymer; pharmaceutical compositions including the polymeric composition; and methods for treating biological disorders in which dosage with nitric oxide is beneficial. The compositions can be used as and/or incorporated into implants, injectables, condoms, prosthesis coatings, patches, and the like for use in a wide variety of medical applications.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: November 25, 1997
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Daniel J. Smith, Debashish Chakravarthy, Larry K. Keefer
  • Patent number: 5549908
    Abstract: A water swellable and hydrolytically labile (and therefore potentially biodegradable) non-toxic crosslinked polysaccharide in microsphere or bead form. The crosslinked polysaccharide comprises polysaccharide chains and crosslinking groups which are imidocarbonate groups, carbonate groups or a mixture thereof. The microspheres are predominantly in the range of about 1 micron to about 100 microns in diameter, preferably about 2-50 microns. The crosslinked polysaccharide polymer, which is preferably a crosslinked dextran, is formed by treating a water soluble non-crosslinked polysaccharide with a cyanogen halide (preferably cyanogen bromide) in an aqueous alkaline medium which is the disperse phase of a water-in-oil dispersion. The microspheres are useful in the treatment of wounds, in particular as an absorptive agent for wound exudates. The microspheres may be formed into a wound dressing which includes a blend of the microspheres and a hydrophobic adhesive matrix material on a waterproof backing sheet.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: August 27, 1996
    Assignee: The University of Akron
    Inventors: Daniel J. Smith, Debashish Chakravarthy
  • Patent number: 5466724
    Abstract: An adhesive composition suitable for wound dressing and other medical applications comprising a mixture of polyisobutylene and a rubber polymer selected from the group consisting of random styrene butadiene rubber (SBR) and halobutyl rubber so as to form a rubbery elastomer base matrix, and at least one hydrocolloid. The addition of the SBR or halobutyl rubber to the elastomer base offsets the possible degradation of the polyisobutylene upon sterilization, and therefore, helps to maintain the integrity of the composition. Water soluble hydrocolloid gums and water swellable cohesive strengthening agents are dispersed within the base matrix and may carry a pharmaceutical agent to be dispensed directly to a wound site.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: November 14, 1995
    Assignee: Variseal Corporation
    Inventors: Robert W. Volke, Debashish Chakravarthy