Patents by Inventor Stephen C. Yeadon

Stephen C. Yeadon 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: 20210113745
    Abstract: Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source.
    Type: Application
    Filed: December 18, 2020
    Publication date: April 22, 2021
    Inventors: Fernando T. CHEN, Kevin H. DAI, Stephen C. YEADON
  • Patent number: 10898621
    Abstract: Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: January 26, 2021
    Assignee: KCI Licensing, Inc.
    Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
  • Publication number: 20180250448
    Abstract: Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
  • Patent number: 9987401
    Abstract: Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: June 5, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
  • Publication number: 20140303577
    Abstract: Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source.
    Type: Application
    Filed: May 7, 2014
    Publication date: October 9, 2014
    Applicant: KCI LICENSING, INC.
    Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
  • Patent number: 8758315
    Abstract: Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: June 24, 2014
    Assignee: KCI Licensing, Inc.
    Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
  • Patent number: 8585965
    Abstract: A method of sterilizing a polymeric material that is sensitive to radiation. The method includes the steps of applying at least one radiosensitizer to the polymeric material and irradiating the polymeric material with a suitable radiation at an effective dose and time to sterilize the polymeric material. Also disclosed is a method of enhancing the ability of a medical device to withstand sterilization by radiation and a bioabsorbable polymeric medical device.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: November 19, 2013
    Assignee: Ethicon, Inc.
    Inventors: James Comolli, Stephen C. Yeadon
  • Patent number: 8580192
    Abstract: A method of sterilizing a polymeric material that is sensitive to radiation. The method includes the steps of applying at least one radiosensitizer to the polymeric material and irradiating the polymeric material with a suitable radiation at an effective dose and time to sterilize the polymeric material. Also disclosed is a method of enhancing the ability of a medical device to withstand sterilization by radiation and a bioabsorbable polymeric medical device.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: November 12, 2013
    Assignee: Ethicon, Inc.
    Inventors: James Comolli, Stephen C. Yeadon
  • Publication number: 20130218109
    Abstract: Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source.
    Type: Application
    Filed: February 21, 2012
    Publication date: August 22, 2013
    Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
  • Patent number: 8299316
    Abstract: A hemostatic device comprising (i) a carrier comprising at least one component selected from the group consisting of hydroxypropyl methylcellulose phthalate, hydroxypropyl methylcellulose acetate succinate, cellulose acetate phthalate; polyvinylacetate phthalate, cellulose acetate phthalate, acetaldehyde dimethylcellulose acetate, polymethacrylate-based polymers, and derivatives, salts, copolymers or combinations thereof; and (ii) thrombin.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: October 30, 2012
    Assignee: Ethicon, Inc.
    Inventors: Robert W. Van Holten, Jagdishchandra C. Patel, Stephen C. Yeadon
  • Patent number: 7776260
    Abstract: An apparatus for the irradiation of a radiation sensitive material. The apparatus includes at least one thermally conductive tank for containing a heat transfer medium therein, said at least one thermally conductive tank having a first wall and a second wall in a parallel spaced relationship, said second wall having an outer surface for placing a radiation sensitive material thereon. Also disclosed is a system and method of irradiating a radiation sensitive material.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: August 17, 2010
    Assignee: Ethicon, Inc.
    Inventors: Michael C. Saylor, Stephen C. Yeadon
  • Patent number: 7704453
    Abstract: A method provides for sterilizing with radiation objects which have a low bioburden and which are sensitive to radiation. A dosage of radiation sufficient to ensure sterilization without damaging the object is determined by determining the bioburden upon one or more samples of the objects, determining an estimate of the dose that results in a probability of 0.01 of a surviving microorganism by testing a quantity of samples of the objects at varying dosage levels of radiation, confirming the estimate by testing a quantity of samples of the objects at the dose that was estimated; and calculating a dosage for the sterility assurance level of 10-6 by adding a factor to the dose that was confirmed to result in a probability of 0.01 of a surviving microorganism and wherein the factor is proportional to the dose that yields a probability of 0.01 of a surviving microorganism and inversely proportional to a log of the bioburden.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: April 27, 2010
    Assignee: Ethicon, Inc.
    Inventors: John B. Kowalski, Stephen C. Yeadon
  • Publication number: 20090156711
    Abstract: A hemostatic device comprising (i) a carrier comprising at least one component selected from the group consisting of hydroxypropyl methylcellulose phthalate, hydroxypropyl methylcellulose acetate succinate, cellulose acetate phthalate; polyvinylacetate phthalate, cellulose acetate phthalate, acetaldehyde dimethylcellulose acetate, polymethacrylate-based polymers, and derivatives, salts, copolymers or combinations thereof; and (ii) thrombin
    Type: Application
    Filed: December 18, 2007
    Publication date: June 18, 2009
    Inventors: Robert W. Van Holten, Jagdishchandra C. Patel, Stephen C. Yeadon
  • Publication number: 20080305001
    Abstract: A method provides for sterilizing with radiation objects which have a low bioburden and which are sensitive to radiation. A dosage of radiation sufficient to ensure sterilization without damaging the object is determined by determining the bioburden upon one or more samples of the objects, determining an estimate of the dose that results in a probability of 0.01 of a surviving microorganism by testing a quantity of samples of the objects at varying dosage levels of radiation, confirming the estimate by testing a quantity of samples of the objects at the dose that was estimated; and calculating a dosage for the sterility assurance level of 10-6 by adding a factor to the dose that was confirmed to result in a probability of 0.01 of a surviving microorganism and wherein the factor is proportional to the dose that yields a probability of 0.01 of a surviving microorganism and inversely proportional to a log of the bioburden.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Inventors: John B. Kowalski, Stephen C. Yeadon
  • Publication number: 20080275387
    Abstract: A hemostatic medical device comprising a tubular syringe body extending along an axis and having a front end and a rear end; a plunger axially slidable in the body; a stem projecting axially rearward out of the body from the plunger; a free piston slidable in the body forward of the plunger and subdividing the body forward of the plunger into a front compartment at the front body end and a rear compartment between the plunger and the piston; the syringe body being formed with a mechanism to allow the contents in the rear and front compartments to mix; sterile saline in the rear compartment; and a hemostatic substance in the front compartment.
    Type: Application
    Filed: May 3, 2007
    Publication date: November 6, 2008
    Inventors: Stephen C. Yeadon, Robert W. Van Holten
  • Publication number: 20080135782
    Abstract: An apparatus for the irradiation of a radiation sensitive material. The apparatus includes at least one thermally conductive tank for containing a heat transfer medium therein, said at least one thermally conductive tank having a first wall and a second wall in a parallel spaced relationship, said second wall having an outer surface for placing a radiation sensitive material thereon. Also disclosed is a system and method of irradiating a radiation sensitive material.
    Type: Application
    Filed: December 11, 2006
    Publication date: June 12, 2008
    Applicant: ETHICON, INC.
    Inventors: Michael C. Saylor, Stephen C. Yeadon
  • Publication number: 20080101982
    Abstract: A method of sterilizing a polymeric material that is sensitive to radiation. The method includes the steps of applying at least one radiosensitizer to the polymeric material and irradiating the polymeric material with a suitable radiation at an effective dose and time to sterilize the polymeric material. Also disclosed is a method of enhancing the ability of a medical device to withstand sterilization by radiation and a bioabsorbable polymeric medical device.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 1, 2008
    Applicant: ETHICON, INC.
    Inventors: James COMOLLI, Stephen C. YEADON