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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Patent number: 8127975Abstract: 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: November 24, 2009Date of Patent: March 6, 2012Assignee: Tyco Healthcare Group LPInventors: Lee Ann Olson, Ralph Stearns
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Patent number: 8118207Abstract: 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: April 21, 2010Date of Patent: February 21, 2012Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Publication number: 20120018326Abstract: 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: September 26, 2011Publication date: January 26, 2012Applicant: Tyco Healthcare Group LPInventors: David C. Racenet, Philip Roy, John W. Beardsley, Lee Ann Olson, Ralph Stearns, Clifford L. Emmons
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Publication number: 20120012640Abstract: 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: September 26, 2011Publication date: January 19, 2012Applicant: Tyco Healthcare Group LPInventors: David C. Racenet, Philip Roy, John W. Beardsley, Lee Ann Olson, Ralph Stearns, Clifford L. Emmons
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Publication number: 20120000962Abstract: A surgical stapling device is disclosed which includes a handle assembly, an endoscopic body portion and a tool assembly. The tool assembly is rotatably and pivotally supported on a distal end of the endoscopic body portion. A tool assembly rotation mechanism is provided which includes a rotation knob, a substantially rigid tube and a flexible member interconnecting the rigid tube to the tool assembly. The substantially rigid tube translates rotation of the rotation knob to rotation of the flexible member and provides a channel for passage of other components of the surgical stapling device.Type: ApplicationFiled: September 15, 2011Publication date: January 5, 2012Inventors: David C. Racenet, Ralph Stearns, Philip Roy, John W. Beardsley, Lee Ann Olson
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Patent number: 8066166Abstract: 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: GrantFiled: April 5, 2007Date of Patent: November 29, 2011Assignee: Tyco Healthcare Group LPInventors: Todd L. Demmy, Paul A. Scirica, Lee Ann Olson
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Patent number: 8061577Abstract: 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: GrantFiled: October 8, 2010Date of Patent: November 22, 2011Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Philip Roy, John W. Beardsley, Lee Ann Olson, Ralph Stearns, Clifford L. Emmons
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Patent number: 8033442Abstract: 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: GrantFiled: November 28, 2007Date of Patent: October 11, 2011Assignee: Tyco Heathcare Group LPInventors: David C. Racenet, Philip Roy, John W. Beardsley, Lee Ann Olson, Ralph Stearns, Clifford L. Emmons
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Patent number: 7997469Abstract: 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: November 17, 2009Date of Patent: August 16, 2011Assignee: Tyco Healthcare Group LPInventors: Lee Ann Olson, Ralph Stearns
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Publication number: 20110079628Abstract: 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: October 8, 2010Publication date: April 7, 2011Applicant: Tyco Healthcare Group LPInventors: David C. Racenet, Philip Roy, John W. Beardsley, Lee Ann Olson, Ralph Stearns, Clifford L. Emmons
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Publication number: 20110062213Abstract: 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: November 23, 2010Publication date: March 17, 2011Applicant: Tyco Healthcare Group LPInventors: Paul A. Scirica, Todd L. Demmy, Lee Ann Olson
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Patent number: 7866528Abstract: 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: November 4, 2009Date of Patent: January 11, 2011Assignee: Tyco Healthcare Group LPInventors: Lee Ann Olson, Ralph Stearns
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Publication number: 20100282819Abstract: 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: June 21, 2010Publication date: November 11, 2010Applicant: TYCO HEALTHCARE GROUP LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Patent number: 7793814Abstract: 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: December 1, 2008Date of Patent: September 14, 2010Assignee: Tyco Healthcare Group LPInventors: David C Racenet, Ralph Stearns, John W Beardsley, Philip Roy, Lee Ann Olson
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Publication number: 20100200638Abstract: 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: April 21, 2010Publication date: August 12, 2010Inventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Patent number: 7726537Abstract: A tool assembly for a surgical stapling device includes a channel member for supporting a staple cartridge therein and an anvil to deform a plurality of staples ejected from the staple cartridge thereagainst. The tool assembly also includes a sled which is movable to force the staples from the cartridge against the anvil to staple tissue disposed between the anvil and the staple cartridge. A dynamic clamping member is included which has a pin which movably engages the anvil and a flange which movably engages the channel assembly. The dynamic clamping member is mounted to and movable with the sled. The pin and the flange of the dynamic clamping member cooperating to oppose the forces associated with clamping and stapling tissue and also to maintain a substantially uniform gap between the anvil and the staple cartridge during stapling of the tissue.Type: GrantFiled: October 6, 2003Date of Patent: June 1, 2010Assignee: Tyco Healthcare Group LPInventors: Lee Ann Olson, Philip Roy, John W. Beardsley, Ralph Stearns, David C. Racenet, Clifford L. Emmons
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Publication number: 20100127043Abstract: 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 17, 2009Publication date: May 27, 2010Inventors: Lee Ann Olson, Ralph Stearns
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Patent number: 7721935Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a single use loading unit, or “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 3, 2006Date of Patent: May 25, 2010Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Ralph Stearns, John W. Beardsley, Philip Roy, Lee Ann Olson
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Publication number: 20100094315Abstract: The present disclosure describes a surgical fastener applying apparatus that includes an elongate body portion having proximal and distal ends, an end effector including a first movably coupled to a second jaw that is positioned at the distal end of the elongate body portion, and an introducer member. The introducer member has proximal and distal portions, and is configured and dimensioned for releasable connection with the end effector. The introducer member is at least partially formed from a flexible material, and is configured and dimensioned to separate target tissue from collateral tissue prior to positioning of the target tissue between the first and second jaws of the end effector.Type: ApplicationFiled: October 1, 2009Publication date: April 15, 2010Inventors: John W. Beardsley, Stanislaw Kostrzewski, Frank C. Maffei, Lee Ann Olson, Sachin Shah
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Patent number: 7690547Abstract: 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: GrantFiled: May 28, 2008Date of Patent: April 6, 2010Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Philip Roy, John W. Beardsley, Lee Ann Olson, Ralph Stearns, Clifford L. Emmons