Patents by Inventor David Hixson
David Hixson 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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Patent number: 9539053Abstract: An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes jaw members adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps include a drive assembly that moves the jaw members relative to one another from a first position to a second position for manipulating tissue. A movable handle is included that is rotatable about a pivot. A knife assembly is also included having a movable knife rod to operatively engage a knife blade, the knife rod having a first longitudinal section having a first predetermined shape, and a second longitudinal section having a second predetermined shape. The first predetermined shape is different than the second predetermined shape.Type: GrantFiled: May 9, 2014Date of Patent: January 10, 2017Assignee: COVIDIEN LPInventors: David Hixson, Jeremy S. James, Jeffrey R. Unger, Chelsea Shields
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Publication number: 20140249528Abstract: An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes jaw members adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps include a drive assembly that moves the jaw members relative to one another from a first position to a second position for manipulating tissue. A movable handle is included that is rotatable about a pivot. A knife assembly is also included having a movable knife rod to operatively engage a knife blade, the knife rod having a first longitudinal section having a first predetermined shape, and a second longitudinal section having a second predetermined shape. The first predetermined shape is different than the second predetermined shape.Type: ApplicationFiled: May 9, 2014Publication date: September 4, 2014Applicant: COVIDIEN LPInventors: DAVID HIXSON, JEREMY S. JAMES, JEFFREY R. UNGER, CHELSEA SHIELDS
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Patent number: 8333765Abstract: An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes an electrically conductive tissue contacting surface connected to an electrosurgical energy source. At least one of the jaw members includes an electrically conductive cutting element disposed within an insulator defined in the jaw member. A rigid structural support is included which is configured to support the electrically conductive tissue sealing surface and includes at least one flow channel defined therein.Type: GrantFiled: June 4, 2012Date of Patent: December 18, 2012Assignee: Covidien AGInventors: Kristin D. Johnson, Gary M. Couture, Jeffrey R. Unger, Robert M. Sharp, David M. Garrison, Sean T. Dycus, David Hixson, Craig Weinberg
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Publication number: 20120233844Abstract: An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes an electrically conductive tissue contacting surface connected to an electrosurgical energy source. At least one of the jaw members includes an electrically conductive cutting element disposed within an insulator defined in the jaw member. A rigid structural support is included which is configured to support the electrically conductive tissue sealing surface and includes at least one flow channel defined therein.Type: ApplicationFiled: June 4, 2012Publication date: September 20, 2012Applicant: COVIDIEN AGInventors: KRISTIN D. JOHNSON, GARY M. COUTURE, JEFF UNGER, ROBERT SHARP, DAVID M. GARRISON, SEAN T. DYCUS, DAVID HIXSON, CRAIG WEINBERG
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Patent number: 8192433Abstract: An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes an electrically conductive tissue contacting surface connected to an electrosurgical energy source. At least one of the jaw members includes an electrically conductive cutting element disposed within an insulator defined in the jaw member. A rigid structural support is included which is configured to support the electrically conductive tissue sealing surface and includes at least one flow channel defined therein.Type: GrantFiled: August 21, 2007Date of Patent: June 5, 2012Assignee: Covidien AGInventors: Kristin D. Johnson, Gary M. Couture, Jeff Unger, Robert Sharp, David M. Garrison, Sean T. Dycus, David Hixson, Craig Weinberg
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Patent number: 8070748Abstract: An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes a longitudinal axis defined therethrough and the jaw members are adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps also includes a drive assembly which moves the jaw member relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for manipulating tissue. A movable handle is included which is rotatable about a pivot to force the drive assembly to move the jaw members between the first and second positions. The pivot is located a fixed distance above the longitudinal axis.Type: GrantFiled: July 9, 2010Date of Patent: December 6, 2011Assignee: TYCO Healthcare Group LPInventors: David Hixson, James D. Allen, IV, Jeremy S. James, Jessica Olson, Paul R. Romero, Chelsea Shields, Jeff Unger
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Publication number: 20100280515Abstract: An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes a longitudinal axis defined therethrough and the jaw members are adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps also includes a drive assembly which moves the jaw member relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for manipulating tissue. A movable handle is included which is rotatable about a pivot to force the drive assembly to move the jaw members between the first and second positions. The pivot is located a fixed distance above the longitudinal axis.Type: ApplicationFiled: July 9, 2010Publication date: November 4, 2010Inventors: David Hixson, James D. Allen, IV, Jeremy S. James, Jessica Olson, Paul R. Romero, Chelsea Shields, Jeff Unger
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Patent number: 7766910Abstract: An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes a longitudinal axis defined therethrough and the jaw members are adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps also includes a drive assembly which moves the jaw member relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for manipulating tissue. A movable handle is included which is rotatable about a pivot to force the drive assembly to move the jaw members between the first and second positions. The pivot is located a fixed distance above the longitudinal axis.Type: GrantFiled: November 9, 2006Date of Patent: August 3, 2010Assignee: TYCO Healthcare Group LPInventors: David Hixson, James D. Allen, IV, Jeremy S. James, Jessica Olson, Paul R. Romero, Chelsea Shields, Jeff Unger
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Patent number: 7270664Abstract: An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes an electrically conductive tissue contacting surface connected to an electrosurgical energy source. At least one of the jaw members includes an electrically conductive cutting element disposed within an insulator defined in the jaw member. A rigid structural support is included which is configured to support the electrically conductive tissue sealing surface and includes at least one flow channel defined therein.Type: GrantFiled: May 5, 2006Date of Patent: September 18, 2007Assignee: Sherwood Services AGInventors: Kristin D. Johnson, Gary M. Couture, Jeff Unger, Robert Sharp, David M. Garrison, Sean T. Dycus, David Hixson, Craig Weinberg
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Publication number: 20070173814Abstract: An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes a longitudinal axis defined therethrough and the jaw members are adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps also includes a drive assembly which moves the jaw member relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for manipulating tissue. A movable handle is included which is rotatable about a pivot to force the drive assembly to move the jaw members between the first and second positions. The pivot is located a fixed distance above the longitudinal axis.Type: ApplicationFiled: November 9, 2006Publication date: July 26, 2007Inventors: David Hixson, James D. Allen, Jeremy S. James, Jessica Olson, Paul R. Romero, Chelsea Shields, Jeff Unger
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Publication number: 20070088288Abstract: A guide and follower cooperate to promote a user moving the driver relative to the housing along a travel path that operates the apparatus. The cooperating elements of the nut and the driver are disengaged when the driver is disposed in a reset segment of the travel path, and the cooperating elements of the nut and the driver become engaged when the driver is shifted through a nut engaging segment of the travel path from the reset segment to a nut rotating segment of the travel path. The engagement of the cooperating elements of the nut and the driver cause the nut to screw proximally along the threaded shaft of the drive member when the driver is shifted through the nut rotating segment from the nut engaging segment to an injecting section of the travel path.Type: ApplicationFiled: October 15, 2004Publication date: April 19, 2007Applicant: Eli Lilly and Company Patent DivisionInventors: Traci Barron, Andrew Burroughs, David Hixson
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Publication number: 20060271038Abstract: An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes an electrically conductive tissue contacting surface connected to an electrosurgical energy source. At least one of the jaw members includes an electrically conductive cutting element disposed within an insulator defined in the jaw member. A rigid structural support is included which is configured to support the electrically conductive tissue sealing surface and includes at least one flow channel defined therein.Type: ApplicationFiled: May 5, 2006Publication date: November 30, 2006Inventors: Kristin Johnson, Gary Couture, Jeff Unger, Robert Sharp, David Garrison, Sean Dycus, David Hixson, Craig Weinberg
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Patent number: 6473552Abstract: Disclosed is a light pipe signaling device for signaling a user. A light pipe has a first end portion that fits into a receptacle. Both light pipe and receptacle are constructed using a transparent material. Light from a light source enters the receptacle and is transmitted to the light pipe. The light travels along a body of the light pipe to a second end portion. The second end portion is adapted to reflect or dissipate the light such that the user is able to see the light from a wide field of view. The light pipe is preferably removable and the receptacle is preferably incorporated into a device that activates the light source in order to alert the user.Type: GrantFiled: May 1, 2000Date of Patent: October 29, 2002Assignee: 3Com CorporationInventors: Mark Fisher, David Hixson, Shu Kun Chang
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Patent number: D535027Type: GrantFiled: October 6, 2004Date of Patent: January 9, 2007Assignee: Sherwood Services AGInventors: Jeremy S. James, Jeff Unger, Chelsea Shields, Paul R. Romero, David Hixson
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Patent number: D575401Type: GrantFiled: June 12, 2007Date of Patent: August 19, 2008Assignee: TYCO Healthcare Group LPInventors: David Hixson, Paul R. Romero, Luke Waaler
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Patent number: D795168Type: GrantFiled: July 14, 2016Date of Patent: August 22, 2017Assignee: SUNSTATE EQUIPMENT CO., LLCInventors: David Hixson, Liu Bing, Wang Hai