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).
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Publication number: 20210113745Abstract: 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: ApplicationFiled: December 18, 2020Publication date: April 22, 2021Inventors: Fernando T. CHEN, Kevin H. DAI, Stephen C. YEADON
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Patent number: 10898621Abstract: 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: GrantFiled: May 4, 2018Date of Patent: January 26, 2021Assignee: KCI Licensing, Inc.Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
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Publication number: 20180250448Abstract: 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: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
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Patent number: 9987401Abstract: 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: GrantFiled: May 7, 2014Date of Patent: June 5, 2018Assignee: KCI Licensing, Inc.Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
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Publication number: 20140303577Abstract: 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: ApplicationFiled: May 7, 2014Publication date: October 9, 2014Applicant: KCI LICENSING, INC.Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
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Patent number: 8758315Abstract: 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: GrantFiled: February 21, 2012Date of Patent: June 24, 2014Assignee: KCI Licensing, Inc.Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
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Patent number: 8585965Abstract: 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: GrantFiled: November 26, 2012Date of Patent: November 19, 2013Assignee: Ethicon, Inc.Inventors: James Comolli, Stephen C. Yeadon
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Patent number: 8580192Abstract: 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: GrantFiled: October 31, 2006Date of Patent: November 12, 2013Assignee: Ethicon, Inc.Inventors: James Comolli, Stephen C. Yeadon
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Publication number: 20130218109Abstract: 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: ApplicationFiled: February 21, 2012Publication date: August 22, 2013Inventors: Fernando T. Chen, Kevin H. Dai, Stephen C. Yeadon
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Patent number: 8299316Abstract: 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: GrantFiled: December 18, 2007Date of Patent: October 30, 2012Assignee: Ethicon, Inc.Inventors: Robert W. Van Holten, Jagdishchandra C. Patel, Stephen C. Yeadon
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Patent number: 7776260Abstract: 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: GrantFiled: December 11, 2006Date of Patent: August 17, 2010Assignee: Ethicon, Inc.Inventors: Michael C. Saylor, Stephen C. Yeadon
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Patent number: 7704453Abstract: 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: GrantFiled: June 7, 2007Date of Patent: April 27, 2010Assignee: Ethicon, Inc.Inventors: John B. Kowalski, Stephen C. Yeadon
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Publication number: 20090156711Abstract: 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) thrombinType: ApplicationFiled: December 18, 2007Publication date: June 18, 2009Inventors: Robert W. Van Holten, Jagdishchandra C. Patel, Stephen C. Yeadon
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Publication number: 20080305001Abstract: 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: ApplicationFiled: June 7, 2007Publication date: December 11, 2008Inventors: John B. Kowalski, Stephen C. Yeadon
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Publication number: 20080275387Abstract: 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: ApplicationFiled: May 3, 2007Publication date: November 6, 2008Inventors: Stephen C. Yeadon, Robert W. Van Holten
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Publication number: 20080135782Abstract: 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: ApplicationFiled: December 11, 2006Publication date: June 12, 2008Applicant: ETHICON, INC.Inventors: Michael C. Saylor, Stephen C. Yeadon
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Publication number: 20080101982Abstract: 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: ApplicationFiled: October 31, 2006Publication date: May 1, 2008Applicant: ETHICON, INC.Inventors: James COMOLLI, Stephen C. YEADON