Patents by Inventor Matthew D. Cohen
Matthew D. Cohen 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: 20140221736Abstract: A hernia repair device includes a surgical mesh configured to extend across a tissue defect and a plurality of filament loops coupled to the surgical mesh toward an outer periphery thereof. A tissue retracting member is slidably disposed about each of the filament loops. Each tissue retracting member is configured for slidable movement about the filament loop between a first position, wherein the tissue retracting member is spaced-apart from the surgical mesh, and a second position, wherein the tissue retracting member is positioned adjacent the surgical mesh to facilitate the retraction of tissue surrounding the tissue defect.Type: ApplicationFiled: October 1, 2012Publication date: August 7, 2014Inventor: Matthew D. Cohen
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Patent number: 8746531Abstract: An anvil assembly comprising an anvil shaft and an anvil head, the anvil head having anvil depressions for farming surgical staples. The anvil head is mounted to the anvil shaft and the anvil shaft has a longitudinal axis and first and second spaced apart elongated projections attached to the anvil shaft and extending therefrom. The projections are configured and dimensioned to retain a purse string suture.Type: GrantFiled: February 19, 2013Date of Patent: June 10, 2014Assignee: Covidien LPInventors: Thomas Wenchell, Matthew D. Cohen
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Patent number: 8739389Abstract: A compound barb medical device is provided which includes an elongated body having at least one barb formed along the length of the body, the barb defining an inner surface with a first portion disposed at a first orientation relative to a longitudinal axis of the elongated body, and a second portion disposed at a second orientation relative to the longitudinal axis. Optionally, the barb defines a third portion disposed at a third orientation relative to the longitudinal axis. A method for forming a compound barb on a medical device is also provided.Type: GrantFiled: August 19, 2011Date of Patent: June 3, 2014Assignee: Covidien LPInventors: Matthew D. Cohen, Nicholas Maiorino, Timothy D. Kosa, Mark S. Buchter, Michael Primavera
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Patent number: 8726481Abstract: A method is provided for forming a barbed medical device which includes the steps of providing a blank workpiece and forming at least one barb on the blank workpiece by applying vibrational energy to a tool and bringing the tool and the blank workpiece into contact with each other at an angle such that the tool cuts into the surface of the blank workpiece. A barbed medical device formed by this method is also provided.Type: GrantFiled: January 11, 2012Date of Patent: May 20, 2014Assignee: Covidien LPInventors: Nicholas Maiorino, Mark S. Buchter, Matthew D. Cohen, Michael Primavera, Timothy D. Kosa
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Patent number: 8679157Abstract: Barbed surgical sutures are provided which include an elongated body and a plurality of barbs extending therefrom. A bioactive agent is disposed within barb angles formed between the barbs and the elongated body. The barbs may be made from a shape memory polymer having a permanent shape which may be deformed to a temporary shape, such that barbs of the suture extend at different barb angles in the different shape configurations. The barb angles of the permanent shape may be greater than the barb angles of the temporary shape, thereby exposing and/or releasing a bioactive agent after placement in tissue.Type: GrantFiled: November 30, 2012Date of Patent: March 25, 2014Assignee: Covidien LPInventors: Joshua B. Stopek, Matthew D. Cohen, Ahmad Robert Hadba, Gerald Hodgkinson
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Publication number: 20140034703Abstract: A surgical stapling apparatus includes a handle assembly and an elongate portion extending distally from the handle assembly. An end effector disposed adjacent a distal portion of the elongate portion includes an anvil assembly and a cartridge assembly, wherein at least one of the cartridge assembly and the anvil assembly is movable with respect to the other to move the end effector between an open configuration where the cartridge assembly and the anvil assembly are substantially spaced and a closed configuration where the cartridge assembly and the anvil assembly are closer together. The end effector also includes a clamping assembly including a first clamping surface deployable to extend laterally from the anvil assembly, and a second clamping surface deployable to extend laterally from the cartridge assembly such that, when deployed, the first and second clamping surfaces oppose one another when the cartridge assembly is in the closed position.Type: ApplicationFiled: October 7, 2013Publication date: February 6, 2014Applicant: Covidien LPInventors: Matthew D. Cohen, Jennifer Broom, Christina Rideout
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Patent number: 8632567Abstract: A compound barb medical device is provided which includes an elongated body having at least one barb formed along the length of the body, the barb defining an inner surface with a first portion disposed at a first orientation relative to a longitudinal axis of the elongated body, and a second portion disposed at a second orientation relative to the longitudinal axis. Optionally, the barb defines a third portion disposed at a third orientation relative to the longitudinal axis. A method for forming a compound barb on a medical device is also provided.Type: GrantFiled: August 24, 2012Date of Patent: January 21, 2014Assignee: Covidien LPInventors: Matthew D. Cohen, Nicholas Maiorino, Timothy D. Kosa, Mark S. Buchter, Michael Primavera
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Patent number: 8550325Abstract: A surgical stapling apparatus includes a handle assembly and an elongate portion extending distally from the handle assembly. An end effector disposed adjacent a distal portion of the elongate portion includes an anvil assembly and a cartridge assembly, wherein at least one of the cartridge assembly and the anvil assembly is movable with respect to the other to move the end effector between an open configuration where the cartridge assembly and the anvil assembly are substantially spaced and a closed configuration where the cartridge assembly and the anvil assembly are closer together. The end effector also includes a clamping assembly including a first clamping surface deployable to extend laterally from the anvil assembly, and a second clamping surface deployable to extend laterally from the cartridge assembly such that, when deployed, the first and second clamping surfaces oppose one another when the cartridge assembly is in the closed position.Type: GrantFiled: May 7, 2012Date of Patent: October 8, 2013Assignee: Covidien LPInventors: Matthew D. Cohen, Jennifer Bloom, Christina Rideout
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Publication number: 20130231702Abstract: A compound barb medical device includes a body portion and at least one barb extending therefrom. The at least one barb defines an inner surface. The inner surface includes a first portion disposed at a first orientation relative to a longitudinal axis of the body portion and a second portion disposed at a second orientation relative to the longitudinal axis. The at least one barb is made from a shape memory material which can be deformed into a temporary shape from a permanent shape. The barb projects from the body portion in a first position relative to the body portion when in the permanent shape and in a second position when in the temporary shape.Type: ApplicationFiled: April 25, 2013Publication date: September 5, 2013Applicant: Covidien LPInventors: Ahmad Robert Hadba, Gerald Hodgkinson, Seth Gleiman, Matthew D. Cohen, Nicholas Maiorino, Timothy D. Kosa, Mark S. Buchter, Michael Primavera
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Publication number: 20130186930Abstract: An anvil assembly comprising an anvil shaft and an anvil head, the anvil head having anvil depressions for farming surgical staples. The anvil head is mounted to the anvil shaft and the anvil shaft has a longitudinal axis and first and second spaced apart elongated projections attached to the anvil shaft and extending therefrom. The projections are configured and dimensioned to retain a purse string suture.Type: ApplicationFiled: February 19, 2013Publication date: July 25, 2013Inventors: Thomas Wenchell, Matthew D. Cohen
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Patent number: 8454653Abstract: A compound barb medical device includes a body portion and at least one barb extending therefrom. The at least one barb defines an inner surface. The inner surface includes a first portion disposed at a first orientation relative to a longitudinal axis of the body portion and a second portion disposed at a second orientation relative to the longitudinal axis. The at least one barb is made from a shape memory material which can be deformed into a temporary shape from a permanent shape. The barb projects from the body portion in a first position relative to the body portion when in the permanent shape and in a second position when in the temporary shape.Type: GrantFiled: March 19, 2010Date of Patent: June 4, 2013Assignee: Covidien LPInventors: Ahmad Robert Hadba, Gerald Hodgkinson, Seth Gleiman, Matthew D. Cohen, Nicholas Maiorino, Timothy D. Kosa, Mark S. Buchter, Michael Primavera
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Publication number: 20130138124Abstract: The present disclosure provides a compound three-dimensional surgical implant and methods of forming and using the same. The compound three-dimensional surgical implant includes a grip-type knit mesh defining pores and including a plurality of spiked naps extending from a surface the grip-type knit mesh, a prosthetic knit mesh defining principal cells and peripheral cells being layered on the grip-type knit mesh such that at least a portion of the spiked naps grip at least a portion of the cells of the prosthetic knit mesh. The grip-type knit mesh and the prosthetic knit mesh are folded together into a predetermined three-dimensional structure such that at least a portion of the spiked naps grip at least a portion of the pores of the grip-type knit mesh to hold the three-dimensional structure of the surgical implant.Type: ApplicationFiled: March 24, 2011Publication date: May 30, 2013Applicant: Covidien LPInventors: Christopher J. Criscuolo, Anthony Arena, Luis Restrepo, Matthew D. Cohen, Joseph Hotter
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Patent number: 8443506Abstract: A method is provided for forming a barbed medical device which includes the steps of providing a blank workpiece and forming at least one barb on the blank workpiece by applying vibrational energy to a tool and bringing the tool and the blank workpiece into contact with each other at an angle such that the tool cuts into the surface of the blank workpiece. A barbed medical device formed by this method is also provided.Type: GrantFiled: January 31, 2012Date of Patent: May 21, 2013Assignee: Covidien LPInventors: Nicholas Maiorino, Mark S. Buchter, Matthew D. Cohen, Michael Primavera, Timothy D. Kosa
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Patent number: 8408441Abstract: An anvil assembly comprising an anvil shaft and an anvil head, the anvil head having anvil depressions for forming surgical staples. The anvil head is mounted to the anvil shaft and the anvil shaft has a longitudinal axis and first and second spaced apart elongated projections attached to the anvil shaft and extending therefrom. The projections are configured and dimensioned to retain a purse string suture.Type: GrantFiled: December 15, 2009Date of Patent: April 2, 2013Assignee: Covidien LPInventors: Thomas Wenchell, Matthew D. Cohen
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Patent number: 8353931Abstract: Barbed surgical sutures and a method of forming a barbed surgical suture from a degradable material are provided having degradation rates tailored to provide the suture with a desired mass loss profile.Type: GrantFiled: November 2, 2006Date of Patent: January 15, 2013Assignee: Covidien LPInventors: Joshua Stopek, Matthew D. Cohen
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Patent number: 8348973Abstract: Barbed surgical sutures are provided which include an elongated body and a plurality of barbs extending therefrom. A bioactive agent is disposed within barb angles formed between the barbs and the elongated body. The barbs may be made from a shape memory polymer having a permanent shape which may be deformed to a temporary shape, such that barbs of the suture extend at different barb angles in the different shape configurations. The barb angles of the permanent shape may be greater than the barb angles of the temporary shape, thereby exposing and/or releasing a bioactive agent after placement in tissue.Type: GrantFiled: March 12, 2010Date of Patent: January 8, 2013Assignee: Covidien LPInventors: Joshua Stopek, Matthew D. Cohen, Ahmad Robert Hadba, Gerald Hodgkinson
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Publication number: 20120323272Abstract: A compound barb medical device is provided which includes an elongated body having at least one barb formed along the length of the body, the barb defining an inner surface with a first portion disposed at a first orientation relative to a longitudinal axis of the elongated body, and a second portion disposed at a second orientation relative to the longitudinal axis. Optionally, the barb defines a third portion disposed at a third orientation relative to the longitudinal axis. A method for forming a compound barb on a medical device is also provided.Type: ApplicationFiled: August 24, 2012Publication date: December 20, 2012Inventors: Matthew D. Cohen, Nicholas Maiorino, Timothy D. Kosa, Mark S. Buchter, Michael Primavera
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Publication number: 20120255157Abstract: The present disclosure relates to methods of altering a surgical fiber by irradiating the surgical fiber with an energy beam such that material is removed therefrom.Type: ApplicationFiled: June 18, 2012Publication date: October 11, 2012Applicant: Tyco Healthcare Group LPInventors: Nicholas Maiorino, Michael Primavera, Matthew D. Cohen
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Patent number: 8273105Abstract: A compound barb medical device is provided which includes an elongated body having at least one barb formed along the length of the body, the barb defining an inner surface with a first portion disposed at a first orientation relative to a longitudinal axis of the elongated body, and a second portion disposed at a second orientation relative to the longitudinal axis. Optionally, the barb defines a third portion disposed at a third orientation relative to the longitudinal axis. A method for forming a compound barb on a medical device is also provided.Type: GrantFiled: January 29, 2009Date of Patent: September 25, 2012Assignee: Tyco Healthcare Group LPInventors: Matthew D. Cohen, Nicholas Maiorino, Timothy D. Kosa, Mark S. Buchter, Michael Primavera
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Publication number: 20120217283Abstract: A surgical stapling apparatus includes a handle assembly and an elongate portion extending distally from the handle assembly. An end effector disposed adjacent a distal portion of the elongate portion includes an anvil assembly and a cartridge assembly, wherein at least one of the cartridge assembly and the anvil assembly is movable with respect to the other to move the end effector between an open configuration where the cartridge assembly and the anvil assembly are substantially spaced and a closed configuration where the cartridge assembly and the anvil assembly are closer together. The end effector also includes a clamping assembly including a first clamping surface deployable to extend laterally from the anvil assembly, and a second clamping surface deployable to extend laterally from the cartridge assembly such that, when deployed, the first and second clamping surfaces oppose one another when the cartridge assembly is in the closed position.Type: ApplicationFiled: May 7, 2012Publication date: August 30, 2012Applicant: Tyco Healthcare Group LPInventors: Matthew D. Cohen, Jennifer Broom, Christina Rideout