Patents by Inventor Lee Ann Olson
Lee Ann Olson 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: 20100072255Abstract: A staple drive assembly includes an actuation sled and at least one staple pusher. The staple drive assembly is adapted to fit within a staple cartridge having a plurality of staples and a corresponding number of retention slots. The at least one staple pusher includes at least one pusher plate for releasably engaging a backspan of a staple. The staple pusher may include a plurality of pusher plates that may be laterally and longitudinally spaced apart. An actuation member has at least one angled camming surface for engaging a complimentary angled surface of the at least one staple pusher. Camming engagement between the actuation member and the at least one staple pusher causes vertical movement of the at least one staple pusher. Lateral and longitudinal offset of the actuation member camming surfaces and the corresponding staple pusher following surfaces improves stability and control of the staple pusher during firing.Type: ApplicationFiled: November 4, 2009Publication date: March 25, 2010Applicant: TYCO HEALTHCARE GROUP LPInventors: Lee Ann Olson, Ralph Stearns
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Publication number: 20100065608Abstract: A staple drive assembly includes an actuation sled and at least one staple pusher. The staple drive assembly is adapted to fit within a staple cartridge having a plurality of staples and a corresponding number of retention slots. The at least one staple pusher includes at least one pusher plate for releasably engaging a backspan of a staple. The staple pusher may include a plurality of pusher plates that may be laterally and longitudinally spaced apart. An actuation member has at least one angled camming surface for engaging a complimentary angled surface of the at least one staple pusher. Camming engagement between the actuation member and the at least one staple pusher causes vertical movement of the at least one staple pusher. Lateral and longitudinal offset of the actuation member camming surfaces and the corresponding staple pusher following surfaces improves stability and control of the staple pusher during firing.Type: ApplicationFiled: November 24, 2009Publication date: March 18, 2010Inventors: Lee Ann Olson, Ralph Strearns
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Patent number: 7641091Abstract: A staple drive assembly includes an actuation sled and at least one staple pusher. The staple drive assembly is adapted to fit within a staple cartridge having a plurality of staples and a corresponding number of retention slots. The at least one staple pusher includes at least one pusher plate for releasably engaging a backspan of a staple. The staple pusher may include a plurality of pusher plates that may be laterally and longitudinally spaced apart. An actuation member has at least one angled camming surface for engaging a complimentary angled surface of the at least one staple pusher. Camming engagement between the actuation member and the at least one staple pusher causes vertical movement of the at least one staple pusher. Lateral and longitudinal offset of the actuation member camming surfaces and the corresponding staple pusher following surfaces improves stability and control of the staple pusher during firing.Type: GrantFiled: October 4, 2005Date of Patent: January 5, 2010Assignee: Tyco Healthcare Group LPInventors: Lee Ann Olson, Ralph Stearns
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Patent number: 7635074Abstract: A staple drive assembly includes an actuation sled and at least one staple pusher. The staple drive assembly is adapted to fit within a staple cartridge having a plurality of staples and a corresponding number of retention slots. The at least one staple pusher includes at least one pusher plate for releasably engaging a backspan of a staple. The staple pusher may include a plurality of pusher plates that may be laterally and longitudinally spaced apart. An actuation member has at least one angled camming surface for engaging a complimentary angled surface of the at least one staple pusher. Camming engagement between the actuation member and the at least one staple pusher causes vertical movement of the at least one staple pusher. Lateral and longitudinal offset of the actuation member camming surfaces and the corresponding staple pusher following surfaces improves stability and control of the staple pusher during firing.Type: GrantFiled: August 30, 2007Date of Patent: December 22, 2009Assignee: Tyco Healthcare Group LPInventors: Lee Ann Olson, Ralph Stearns
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Publication number: 20090283568Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: ApplicationFiled: July 9, 2009Publication date: November 19, 2009Inventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Patent number: 7597230Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: GrantFiled: August 20, 2007Date of Patent: October 6, 2009Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Patent number: 7584880Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: GrantFiled: October 31, 2007Date of Patent: September 8, 2009Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Publication number: 20090078738Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: ApplicationFiled: December 1, 2008Publication date: March 26, 2009Applicant: Tyco Healthcare Group LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Publication number: 20090050671Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: ApplicationFiled: October 31, 2007Publication date: February 26, 2009Inventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Patent number: 7494039Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: GrantFiled: August 20, 2007Date of Patent: February 24, 2009Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Publication number: 20080269793Abstract: A dissecting tip is provided for use with a surgical stapler or instrument. In one embodiment, the dissecting tip is secured to the end effector of a surgical stapler, e.g., to the anvil assembly or cartridge assembly. The dissecting tip extends distally from the end effector and is configured to dissect or separate target tissue from certain tissue, e.g., adherent, connective, joined or other tissue.Type: ApplicationFiled: April 29, 2004Publication date: October 30, 2008Inventors: Paul A. Scirica, Todd L. Demmy, Lee Ann Olson
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Publication number: 20080237297Abstract: A surgical stapling device including a handle assembly, an endoscopic portion and an end effector is disclosed. The endoscopic portion extends distally from the handle assembly and defines a first longitudinal axis. The end effector defines a second longitudinal axis and includes an anvil assembly and a cartridge assembly. The anvil assembly is supported adjacent a distal end of the endoscopic portion and includes a dissecting tip extending therefrom. The cartridge assembly is pivotably mounted adjacent the distal end of the endoscopic portion. The cartridge assembly is mounted for pivotal movement in relation to the anvil assembly between open and approximated positions.Type: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Inventors: Todd Demmy, Lee Ann Olson
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Publication number: 20080230582Abstract: A surgical stapling device including an independently rotatable tool assembly is disclosed. The tool assembly includes an anvil and a cartridge assembly which are movable in relation to each other between spaced and approximated positions.Type: ApplicationFiled: May 28, 2008Publication date: September 25, 2008Inventors: David C. Racenet, Philip Roy, John W. Beardsley, Lee Ann Olson, Ralph Stearns, Clifford L. Emmons
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Patent number: 7424965Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: GrantFiled: January 12, 2007Date of Patent: September 16, 2008Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Publication number: 20080217375Abstract: A dissecting tip is provided for use with a surgical stapler or instrument. In one embodiment, the dissecting tip is secured to the end effector of the surgical instrument, e.g., to the cartridge assembly. The dissecting tip extends distally from the end effector and is configured to dissect or separate target tissue from certain tissue, e.g., adherent, connective, joined or other tissue.Type: ApplicationFiled: February 25, 2008Publication date: September 11, 2008Inventors: Paul A. Scirica, Todd L. Demmy, Lee Ann Olson
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Publication number: 20080035701Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: ApplicationFiled: August 20, 2007Publication date: February 14, 2008Inventors: David Racenet, Ralph Stearns, John Beardsley, Philip Roy, Lee Ann Olson
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Patent number: 7159750Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a Simple Use Loading Unit (“SULU”) [SULU]. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes.Type: GrantFiled: June 17, 2004Date of Patent: January 9, 2007Assignee: Tyco Healtcare Group LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Publication number: 20040243151Abstract: A tip is provided for use with a surgical stapler or instrument. In one embodiment, the tip is secured to the end effector of the surgical instrument, e.g., to the anvil assembly or cartridge assembly. The tip extends distally from the end effector and is configured to dissect or separate target tissue from certain tissue, e.g., adherent, connective, joined or other tissue, or to facilitate passage of the end effector past tissue.Type: ApplicationFiled: January 23, 2004Publication date: December 2, 2004Inventors: Todd L. Demmy, Paul A. Scirica, Lee Ann Olson