Patents by Inventor Keith L. Milliman
Keith L. Milliman 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: 11666338Abstract: A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly.Type: GrantFiled: June 25, 2020Date of Patent: June 6, 2023Assignee: COVIDIEN LPInventor: Keith L. Milliman
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Publication number: 20200323531Abstract: A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly.Type: ApplicationFiled: June 25, 2020Publication date: October 15, 2020Inventor: Keith L. Milliman
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Patent number: 10743881Abstract: A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly.Type: GrantFiled: September 20, 2018Date of Patent: August 18, 2020Assignee: Covidien LPInventor: Keith L. Milliman
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Patent number: 10653421Abstract: The present disclosure relates to an insertion device including a shaft with a head supported on a distal end thereof. The shaft includes a proximal end with an engagement member that is configured to frictionally engage a distal end of a surgical fastening apparatus such that an interference fit is created therebetween to facilitate selective detachment of the insertion device from the surgical fastening apparatus. The head has an atraumatic configuration, and is dimensioned to be received in a body orifice.Type: GrantFiled: November 20, 2017Date of Patent: May 19, 2020Assignee: Covidien LPInventors: Keith L. Milliman, Thomas Wenchell, Philip C. Roy
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Patent number: 10413299Abstract: A surgical stapling device comprising a housing, an elongated portion, an end effector, and a movable handle disposed in mechanical cooperation with the housing and movable between a first open position and a second approximated position for affecting a function of the end effector. A ratchet mechanism is disposed in mechanical cooperation with the movable handle and is configured to substantially prevent the movable handle from moving towards its first open position until the movable handle reaches a predetermined position.Type: GrantFiled: February 13, 2017Date of Patent: September 17, 2019Assignee: Covidien LPInventor: Keith L. Milliman
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Publication number: 20190015105Abstract: A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly.Type: ApplicationFiled: September 20, 2018Publication date: January 17, 2019Inventor: Keith L. Milliman
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Patent number: 10092294Abstract: A surgical instrument including a handle assembly, an elongated body portion, a head portion and an elongated channel. The elongated body portion extends distally from the handle assembly. The head portion is disposed adjacent a distal end of the elongated body portion and includes an anvil assembly and a shell assembly. The elongated channel includes a proximal opening and a distal opening. The proximal opening is disposed distally of a proximalmost end of the handle assembly and proximally of the shell assembly. The distal opening is disposed on the shell assembly.Type: GrantFiled: October 10, 2016Date of Patent: October 9, 2018Assignee: Covidien LPInventors: Danyel Racenet, Thomas Wenchell, Keith L. Milliman
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Patent number: 10080566Abstract: A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly.Type: GrantFiled: October 2, 2015Date of Patent: September 25, 2018Assignee: Covidien LPInventor: Keith L. Milliman
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Publication number: 20180070947Abstract: The present disclosure relates to an insertion device including a shaft with a head supported on a distal end thereof. The shaft includes a proximal end with an engagement member that is configured to frictionally engage a distal end of a surgical fastening apparatus such that an interference fit is created therebetween to facilitate selective detachment of the insertion device from the surgical fastening apparatus. The head has an atraumatic configuration, and is dimensioned to be received in a body orifice.Type: ApplicationFiled: November 20, 2017Publication date: March 15, 2018Inventors: Keith L. Milliman, Thomas Wenchell, Philip C. Roy
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Patent number: 9820748Abstract: The present disclosure relates to an insertion device including a shaft with a head supported on a distal end thereof. The shaft includes a proximal end with an engagement member that is configured to frictionally engage a distal end of a surgical fastening apparatus such that an interference fit is created therebetween to facilitate selective detachment of the insertion device from the surgical fastening apparatus. The head has an atraumatic configuration, and is dimensioned to be received in a body orifice.Type: GrantFiled: September 19, 2008Date of Patent: November 21, 2017Assignee: Covidien LPInventors: Keith L. Milliman, Thomas Wenchell, Philip C. Roy
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Publication number: 20170150968Abstract: A surgical stapling device comprising a housing, an elongated portion, an end effector, and a movable handle disposed in mechanical cooperation with the housing and movable between a first open position and a second approximated position for affecting a function of the end effector. A ratchet mechanism is disposed in mechanical cooperation with the movable handle and is configured to substantially prevent the movable handle from moving towards its first open position until the movable handle reaches a predetermined position.Type: ApplicationFiled: February 13, 2017Publication date: June 1, 2017Inventor: Keith L. Milliman
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Publication number: 20170143345Abstract: A shroud is provided which includes a rounded atraumatic distal configuration. The shroud is configured and dimensioned to be positioned on the distal end portion of a surgical instrument. The shroud is movable between a first position in which a distal portion of the shroud extends beyond a distal end of a tool assembly of the surgical instrument and a second position in which the distal portion of the shroud is positioned proximal to the distal end of the tool assembly.Type: ApplicationFiled: February 2, 2017Publication date: May 25, 2017Inventors: Keith L. Milliman, Thomas R. Hessler
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Publication number: 20170112498Abstract: A surgical stapling device particularly suited for endoscopic procedures is described. The device includes a handle assembly and an elongated body extending distally from the handle assembly. The distal end of the elongated body is adapted to engage a disposable loading unit. A control rod having a proximal end operatively connected to the handle assembly includes a distal end extending through the elongated body. A control rod locking member is provided to prevent movement of the control rod until the disposable loading unit is fully secured to the elongated body of the stapling device.Type: ApplicationFiled: January 9, 2017Publication date: April 27, 2017Inventors: Keith L. Milliman, Frank J. Viola, Joseph P. Orban, Randolph F. Lehn
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Patent number: 9603594Abstract: A surgical stapling device comprising a housing, an elongated portion, an end effector, and a movable handle disposed in mechanical cooperation with the housing and movable between a first open position and a second approximated position for affecting a function of the end effector. A ratchet mechanism is disposed in mechanical cooperation with the movable handle and is configured to substantially prevent the movable handle from moving towards its first open position until the movable handle reaches a predetermined position.Type: GrantFiled: November 24, 2014Date of Patent: March 28, 2017Assignee: Covidien LPInventor: Keith L. Milliman
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Patent number: 9597080Abstract: A shroud is provided which includes a rounded atraumatic distal configuration. The shroud is configured and dimensioned to be positioned on the distal end portion of a surgical instrument. The shroud is movable between a first position in which a distal portion of the shroud extends beyond a distal end of a tool assembly of the surgical instrument and a second position in which the distal portion of the shroud is positioned proximal to the distal end of the tool assembly.Type: GrantFiled: September 3, 2008Date of Patent: March 21, 2017Assignee: Covidien LPInventors: Keith L. Milliman, Thomas R. Hessler
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Patent number: 9592055Abstract: A surgical stapling device is disclosed for the treatment of internal hemorrhoids. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. The head portion includes an anvil assembly including a tiltable anvil which will tilt automatically after the device has been fired and unapproximated. The tiltable anvil provides a reduced anvil profile to reduce trauma during removal of the device after the anastomoses procedure has been performed. The anvil assembly of the stapling device may include an approximation mechanism having an anvil retainer including an elongated distal extension dimensioned to be telescopingly received within a longitudinal bore of an anvil center rod of the anvil assembly. The elongated distal extension is of a length to provide telescopic engagement with the anvil center rod without obstructing visualization of the surgical site.Type: GrantFiled: September 8, 2010Date of Patent: March 14, 2017Assignee: Covidien LPInventors: Keith L. Milliman, Russell Heinrich
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Patent number: 9592051Abstract: A surgical stapling instrument comprising a handle assembly having a proximal end, an elongated body portion extending distally from the handle assembly, a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The shell assembly includes a shell and a staple guide housing a plurality of staples. A flexible engagement structure attaches the staple guide to the shell.Type: GrantFiled: November 7, 2014Date of Patent: March 14, 2017Assignee: Covidien LPInventors: Nihir Patel, Guido Pedros, Stephen R. Paul, Keith L. Milliman, Ryan Williams, Michael J. Havrilko
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Patent number: 9566067Abstract: A surgical stapling device particularly suited for endoscopic procedures is described. The device includes a handle assembly and an elongated body extending distally from the handle assembly. The distal end of the elongated body is adapted to engage a disposable loading unit. A control rod having a proximal end operatively connected to the handle assembly includes a distal end extending through the elongated body. A control rod locking member is provided to prevent movement of the control rod until the disposable loading unit is fully secured to the elongated body of the stapling device.Type: GrantFiled: April 9, 2015Date of Patent: February 14, 2017Assignee: Covidien LPInventors: Keith L. Milliman, Frank J. Viola, Joseph P. Orban, Randolph F. Lehn
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Publication number: 20170020528Abstract: A surgical instrument including a handle assembly, an elongated body portion, a head portion and an elongated channel. The elongated body portion extends distally from the handle assembly. The head portion is disposed adjacent a distal end of the elongated body portion and includes an anvil assembly and a shell assembly. The elongated channel includes a proximal opening and a distal opening. The proximal opening is disposed distally of a proximalmost end of the handle assembly and proximally of the shell assembly. The distal opening is disposed on the shell assembly.Type: ApplicationFiled: October 10, 2016Publication date: January 26, 2017Inventors: Danyel Racenet, Thomas Wenchell, Keith L. Milliman
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Patent number: 9532781Abstract: An anvil and anvil delivery system is provided which includes a head assembly and a center rod defining a longitudinal axis. The head assembly defines a transverse axis and is pivotally secured to the rod and movable from an operative position wherein the transverse axis is substantially perpendicular to the longitudinal axis and a tilted position wherein the transverse axis defines an acute angle with respect to the longitudinal axis. A flexible tube is secured to the center rod which includes gradations along the length of the tube. The gradations are positioned to provide an indication of a length of the tube remaining in a patient during removal of the tube from the patient. An adapter is secured to one end of the flexible tube and to the center rod. The adapter is configured to secure the anvil assembly to the flexible tube.Type: GrantFiled: November 4, 2013Date of Patent: January 3, 2017Assignee: Covidien LPInventors: Keith L. Milliman, Thomas Wenchell, Philip C. Roy