Patents by Inventor Chirag B. Shah

Chirag B. Shah 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: 20180369462
    Abstract: A wound dressing for use in a vacuum wound therapy treatment includes a backing layer for positioning over a wound to define a reservoir in which a reduced pressure may be maintained over the wound. A portal member affixed to the backing layer provides a connection to a reduced pressure source through an opening in an ambient surface. A primary port extends between the opening and a primary aperture in a reservoir surface to providing fluid communication between the reservoir and the reduced pressure source. At least one supplemental port establishes fluid communication between the primary port and a supplemental aperture in the reservoir surface that is distinct and substantially spaced from the primary aperture.
    Type: Application
    Filed: August 31, 2018
    Publication date: December 27, 2018
    Inventors: Julia-Rose Anderson, Richard M. Braga, Deirdre McKeown, Adam M. Ruggles, Chirag B. Shah, David R. Swisher, Mark A. Vess, Ronald F. Vitaris
  • Publication number: 20180140757
    Abstract: A system for subatmospheric pressure therapy in connection with healing a wound is provided. The system includes a wound dressing cover dimensioned for positioning relative to a wound bed of a subject to establish a reservoir over the wound bed in which subatmospheric pressure may be maintained, a subatmospheric pressure mechanism including, a housing, a vacuum source disposed in the housing, and a collection canister in fluid communication with the vacuum source. The system further includes an exudate conduit in fluid communication with the wound dressing and the collection canister for collecting exudate removed from the reservoir and deposited in the collection canister under influence of the vacuum source and a vent conduit in fluid communication with the collection canister and the wound dressing for introducing air into the reservoir to facilitate flow of exudate through the exudate conduit.
    Type: Application
    Filed: January 16, 2018
    Publication date: May 24, 2018
    Inventors: Mark A. Vess, Chirag B. Shah, Richard M. Braga, David R. Swisher
  • Patent number: 9889241
    Abstract: A system for subatmospheric pressure therapy in connection with healing a wound is provided. The system includes a wound dressing cover dimensioned for positioning relative to a wound bed of a subject to establish a reservoir over the wound bed in which subatmospheric pressure may be maintained, a subatmospheric pressure mechanism including, a housing, a vacuum source disposed in the housing, and a collection canister in fluid communication with the vacuum source. The system further includes an exudate conduit in fluid communication with the wound dressing and the collection canister for collecting exudate removed from the reservoir and deposited in the collection canister under influence of the vacuum source and a vent conduit in fluid communication with the collection canister and the wound dressing for introducing air into the reservoir to facilitate flow of exudate through the exudate conduit.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: February 13, 2018
    Assignee: SMITH & NEPHEW, INC.
    Inventors: Mark A. Vess, Chirag B. Shah, Richard M. Braga, David R. Swisher
  • Publication number: 20150018785
    Abstract: A system for subatmospheric pressure therapy in connection with healing a wound is provided. The system includes a wound dressing cover dimensioned for positioning relative to a wound bed of a subject to establish a reservoir over the wound bed in which subatmospheric pressure may be maintained, a subatmospheric pressure mechanism including, a housing, a vacuum source disposed in the housing, and a collection canister in fluid communication with the vacuum source. The system further includes an exudate conduit in fluid communication with the wound dressing and the collection canister for collecting exudate removed from the reservoir and deposited in the collection canister under influence of the vacuum source and a vent conduit in fluid communication with the collection canister and the wound dressing for introducing air into the reservoir to facilitate flow of exudate through the exudate conduit.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 15, 2015
    Inventors: Mark A. Vess, Chirag B. Shah, Richard M. Braga, David R. Swisher
  • Patent number: 8784392
    Abstract: A system for subatmospheric pressure therapy in connection with healing a wound is provided. The system includes a wound dressing cover dimensioned for positioning relative to a wound bed of a subject to establish a reservoir over the wound bed in which subatmospheric pressure may be maintained, a subatmospheric pressure mechanism including, a housing, a vacuum source disposed in the housing, and a collection canister in fluid communication with the vacuum source. The system further includes an exudate conduit in fluid communication with the wound dressing and the collection canister for collecting exudate removed from the reservoir and deposited in the collection canister under influence of the vacuum source and a vent conduit in fluid communication with the collection canister and the wound dressing for introducing air into the reservoir to facilitate flow of exudate through the exudate conduit.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: July 22, 2014
    Assignee: Smith & Nephew, Inc.
    Inventors: Mark A. Vess, Chirag B. Shah, Richard M. Braga, David R. Swisher
  • Publication number: 20130172836
    Abstract: A system for subatmospheric pressure therapy in connection with healing a wound is provided. The system includes a wound dressing cover dimensioned for positioning relative to a wound bed of a subject to establish a reservoir over the wound bed in which subatmospheric pressure may be maintained, a subatmospheric pressure mechanism including, a housing, a vacuum source disposed in the housing, and a collection canister in fluid communication with the vacuum source. The system further includes an exudate conduit in fluid communication with the wound dressing and the collection canister for collecting exudate removed from the reservoir and deposited in the collection canister under influence of the vacuum source and a vent conduit in fluid communication with the collection canister and the wound dressing for introducing air into the reservoir to facilitate flow of exudate through the exudate conduit.
    Type: Application
    Filed: August 10, 2012
    Publication date: July 4, 2013
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Mark A. Vess, Chirag B. Shah, Richard M. Braga, David R. Swisher
  • Patent number: 8298200
    Abstract: A system for subatmospheric pressure therapy in connection with healing a wound is provided. The system includes a wound dressing cover dimensioned for positioning relative to a wound bed of a subject to establish a reservoir over the wound bed in which subatmospheric pressure may be maintained, a subatmospheric pressure mechanism including, a housing, a vacuum source disposed in the housing, and a collection canister in fluid communication with the vacuum source. The system further includes an exudate conduit in fluid communication with the wound dressing and the collection canister for collecting exudate removed from the reservoir and deposited in the collection canister under influence of the vacuum source and a vent conduit in fluid communication with the collection canister and the wound dressing for introducing air into the reservoir to facilitate flow of exudate through the exudate conduit.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: October 30, 2012
    Assignee: Tyco Healthcare Group LP
    Inventors: Mark A. Vess, Chirag B. Shah, Richard M. Braga, David R. Swisher
  • Publication number: 20100305524
    Abstract: A system for subatmospheric pressure therapy in connection with healing a wound is provided. The system includes a wound dressing cover dimensioned for positioning relative to a wound bed of a subject to establish a reservoir over the wound bed in which subatmospheric pressure may be maintained, a subatmospheric pressure mechanism including, a housing, a vacuum source disposed in the housing, and a collection canister in fluid communication with the vacuum source. The system further includes an exudate conduit in fluid communication with the wound dressing and the collection canister for collecting exudate removed from the reservoir and deposited in the collection canister under influence of the vacuum source and a vent conduit in fluid communication with the collection canister and the wound dressing for introducing air into the reservoir to facilitate flow of exudate through the exudate conduit.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 2, 2010
    Applicant: Tyco Healthcare Group LP
    Inventors: Mark A. Vess, Chirag B. Shah, Richard M. Braga, David R. Swisher
  • Publication number: 20100260824
    Abstract: Articles may be formed including: at least one layer of foam, the foam layer and at least one antimicrobial agent associated with foam layer, the antimicrobial agent including PHMB, PEHMB, or derivatives thereof; at least one non-adherent layer disposed on at least a portion of the foam layer, the non-adherent layer being permeable to moisture; and a film disposed on at least another portion of the foam layer, the film being breathable to allow escape of moisture, but substantially impermeable to bacteria. Another article may include at least one layer of foam, the foam having pores of different sizes, at least some of the pores at least partially filled with at least one elutable antimicrobial agent, the pores of different sizes forming a gradient with the foam layer.
    Type: Application
    Filed: August 27, 2009
    Publication date: October 14, 2010
    Applicant: Tyco Healthcare Group LP
    Inventors: Chirag B. Shah, Ronald F. Vitaris, E. David Fink, Scott Orr, Brian Dowd, Alain Tranchemontagne, Kate Ward, Hansen Swaniker, Harish A. Patel
  • Publication number: 20100256576
    Abstract: Disinfectant compositions including EDTA salt(s), Parabens and Methylene Blue. The disinfectant compositions have demonstrated activity as enhanced, fast acting catheter lock/flush solutions. They are safe for human and medical uses and may be used as prophylactic preparations to prevent infection, or to reduce the proliferation of and/or eliminate existing or established infections. In addition, the composition has anticoagulant activity and can be utilized to maintain the patency of catheters.
    Type: Application
    Filed: April 7, 2010
    Publication date: October 7, 2010
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Dinesh Aggarwal, Chirag B. Shah
  • Patent number: 7799965
    Abstract: A wound dressing includes one or more layers containing a first anti-microbial agent and/or at least one zinc-containing agent.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: September 21, 2010
    Assignee: Tyco Healthcare Group LP
    Inventors: Harish A. Patel, Hansen P. Swaniker, David G. Heagle, Kate Ward, Alain Tranchemontagne, E. David Fink, Ronald F. Vitaris, Chirag B. Shah, Sharon A. Mulligan, Brian Dowd, Scott Orr
  • Patent number: 7750201
    Abstract: A wound dressing includes one or more layers containing a first anti-microbial agent and at least one of: a chelating agent, and a second anti-microbial agent.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: July 6, 2010
    Assignee: Tyco Healthcare Group LP
    Inventors: Harish A. Patel, Hansen P. Swaniker, David G. Heagle, Kate Ward, Alain Tranchemontagne, E. David Fink, Ronald F. Vitaris, Chirag B. Shah, Sharon A. Mulligan, Brian Dowd, Scott Orr
  • Publication number: 20100055437
    Abstract: An antimicrobial fiber is described including: an inner layer and an outer layer; wherein the inner layer and the outer layer comprise at least one of the following characteristics: (I) the inner layer and the outer layer comprise of different concentrations, or different release rates, of at least one antimicrobial agent; and (II) the inner layer and the outer layer comprise different antimicrobial agents. An alternative antimicrobial fiber includes an antimicrobial agent compounded or combined with a dissolvable substance to promote release or binding of the antimicrobial agent. Related articles are also described.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: Tyco Healthcare Group LP
    Inventors: E. David Fink, Ronald F. Vitaris, Chirag B. Shah, Sharon A. Mulligan, Brian Dowd, Scott Orr
  • Publication number: 20100055142
    Abstract: A method of treating a substrate having a charge bias with at least one antimicrobial agent to modify the release properties of the antimicrobial agent with respect to the substrate, the method includes eliminating, mitigating, or modifying the charge bias of the substrate by applying at least one first agent to the substrate, and applying the at least one antimicrobial agent to the substrate. Related articles are also described.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: Tyco Healthcare Group LP
    Inventors: David G. Heagle, Chirag B. Shah, Ronald F. Vitaris, E. David Fink, Sharon A. Mulligan, Brian Dowd
  • Publication number: 20100055158
    Abstract: An article includes a film layer; at least one layer of adhesive on at least one side of the film layer; a patch or strip comprising at least one antimicrobial agent, the patch or strip disposed on the same side of the film layer as the at least one layer of adhesive; and a relatively non-flexible sheet releasably attached to the side of the film layer opposite to the patch or strip.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 4, 2010
    Applicant: Tyco Healthcare Group LP
    Inventors: Ronald F. Vitaris, Harish A. Patel, E. David Fink, Sharon A. Mulligan, Brian Dowd, Scott Orr, Chirag B. Shah
  • Publication number: 20100022652
    Abstract: A composition may include a combination of at least one chelating agent and at least one antioxidant agent, the combination may have a fractional inhibitory concentration coefficient of about 0.5 or less and/or an INR of > about 2.82.
    Type: Application
    Filed: June 23, 2009
    Publication date: January 28, 2010
    Applicant: Tyco Healthcare Group LP
    Inventors: Dinesh Aggarwal, Chirag B. Shah
  • Patent number: 7232421
    Abstract: The present invention provides a system for delivering a therapeutic agent into tissue in combination with an implant device (2). Preferably the therapeutic substance is contained within a pellet form (14) that is deliverable into the interior of the device (2) after it has been implanted. In a preferred embodiment the implant device (2) comprises a flexible coiled spring body, the coils (4) of which have the proper diameter and spacing to contain the pellet (14) within the interior of the device (2) to contact the therapeutic agent. In treatment of ischemic tissue such as that of the myocardium of the heart, the mechanical irritation of the tissue caused by the implanted device (2) can help to provide an angiogenic effect. Additionally, the cavity (18) provided by the interior of the device (2) permits blood to pool around the pellet (14) and mix with the therapeutic agent. Several delivery systems have provided for delivering the implant and pellet (14) sequentially or simultaneously.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: June 19, 2007
    Assignee: C. R. Bard, Inc.
    Inventors: Richard A. Gambale, Chirag B. Shah, Michael F. Weiser, Stephen J. Forcucci, Sean Forde
  • Patent number: 6830583
    Abstract: Coatings are provided in which biopolymers may be covalently linked to a substrate. Such biopolymers include those that impart thromboresistance and/or biocompatibility to the substrate, which may be a medical device. Coatings disclosed herein include those that permit coating of a medical device in a single layer, including coatings that permit applying the single layer without a primer. Suitable biopolymers include heparin complexes, and linkage may be provided by a silane having isocyanate functionality.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: December 14, 2004
    Assignee: Medtronic Ave, Inc.
    Inventors: Chirag B Shah, Laurel L Wolfgang
  • Publication number: 20040219180
    Abstract: The invention includes systems and methods for stimulating intramuscular angiogenesis by placing a biocompatible device within the tissue of a muscle. The biocompatible device is dimensionally adapted for placement within the tissue of a muscle. Placement of the biocompatible device within the muscle can take place according to the method of the invention by using techniques familiar to those of ordinary skill in the art. Illustrative techniques for placement of the device within the myocardium comprise one practice of the method of the invention.
    Type: Application
    Filed: January 29, 2004
    Publication date: November 4, 2004
    Applicant: C. R. Bard, Inc.
    Inventors: Richard A. Gambale, Mike Weiser, Stephen Forcucci, Chirag B. Shah
  • Patent number: RE39438
    Abstract: Coatings are provided in which biopolymers may be covalently linked to a substrate. Such biopolymers include those that impart thromboresistance and/or biocompatibility to the substrate, which may be a medical device. Coatings disclosed herein include those that permit coating of a medical device in a single layer, including coatings that permit applying the single layer without a primer. Suitable biopolymers include heparin complexes, and linkage may be provided by a silane having isocyanate functionality.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: December 19, 2006
    Assignee: Medtronic Vascular, Inc.
    Inventors: Chirag B Shah, Laurel L Wolfgang