Patents by Inventor Keith Milliman
Keith 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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Publication number: 20160374677Abstract: An anvil assembly for use therewith a surgical fastener applying apparatus including an anvil plate and an anvil head configured and dimensioned to support the anvil plate. The anvil plate and the anvil head may be formed from different materials. The anvil plate can include a tapered outer side wall allowing the anvil assembly to realize a substantially uniform proximal-most surface upon assembly.Type: ApplicationFiled: September 8, 2016Publication date: December 29, 2016Inventor: Keith Milliman
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Patent number: 9463018Abstract: An anvil assembly for use therewith a surgical fastener applying apparatus including an anvil plate and an anvil head configured and dimensioned to support the anvil plate. The anvil plate and the anvil head may be formed from different materials. The anvil plate can include a tapered outer side wall allowing the anvil assembly to realize a substantially uniform proximal-most surface upon assembly.Type: GrantFiled: May 20, 2013Date of Patent: October 11, 2016Assignee: Covidien LPInventor: Keith Milliman
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Publication number: 20160228116Abstract: Instrument introducers and methods of using the same are provided to facilitate the introduction of a surgical instrument into a cavity or a body opening of a patient. The instrument introducers include a body portion defining a lumen therethrough, a flexible distal end portion having a distal orifice, a proximal end portion having a proximal orifice, and at least one fold formed in at least the distal end portion.Type: ApplicationFiled: April 19, 2016Publication date: August 11, 2016Inventor: Keith Milliman
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Publication number: 20160174989Abstract: This application is directed to a surgical stapling device for performing circular anastomoses. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. A tactile indication mechanism is also provided for notifying a surgeon that the device has been fired and for notifying a surgeon that the anvil head has been unapproximated a distance sufficient to permit the anvil head to tilt.Type: ApplicationFiled: March 2, 2016Publication date: June 23, 2016Inventors: Richard D. Gresham, Scott Manzo, Ernest Aranyi, Robert Geiste, Bruce Jankowski, Keith Milliman
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Patent number: 9307994Abstract: This application is directed to a surgical stapling device for performing circular anastomoses. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. A tactile indication mechanism is also provided for notifying a surgeon that the device has been fired and for notifying a surgeon that the anvil head has been unapproximated a distance sufficient to permit the anvil head to tilt.Type: GrantFiled: March 7, 2013Date of Patent: April 12, 2016Assignee: Covidien LPInventors: Richard D. Gresham, Scott Manzo, Ernest Aranyi, Robert Geiste, Bruce Jankowski, Keith Milliman
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Publication number: 20160045200Abstract: An anvil assembly includes a circular anvil head that supports a crush ring, an anvil cap that supports an o-ring, and a circular anvil buttress member. The cap connects to the head and is movable relative to the head between approximated and unapproximated positions. The crush ring is spaced from the cap when the cap is in the approximated position and movable into engagement with the cap to move the cap to the unapproximated position. The buttress member includes a body portion and an extension portion. The body portion is supported on the head and the extension portion is secureable between the o-ring and the head when the cap is in the approximated position. The extension portion is releasable from between the o-ring and the head when the cap is disposed in the unapproximated position so that the body portion separates from the head.Type: ApplicationFiled: October 27, 2015Publication date: February 18, 2016Inventor: Keith Milliman
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Patent number: 9192383Abstract: An anvil assembly includes a circular anvil head that supports a crush ring, an anvil cap that supports an o-ring, and a circular anvil buttress member. The cap connects to the head and is movable relative to the head between approximated and unapproximated positions. The crush ring is spaced from the cap when the cap is in the approximated position and movable into engagement with the cap to move the cap to the unapproximated position. The buttress member includes a body portion and an extension portion. The body portion is supported on the head and the extension portion is secureable between the o-ring and the head when the cap is in the approximated position. The extension portion is releasable from between the o-ring and the head when the cap is disposed in the unapproximated position so that the body portion separates from the head.Type: GrantFiled: February 4, 2013Date of Patent: November 24, 2015Assignee: Covidien LPInventor: Keith Milliman
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Publication number: 20150014393Abstract: A circular stapler is disclosed. The circular stapler comprises a handle assembly, an elongate body, and a cartridge assembly. The elongate body extends from the handle assembly and defines a longitudinal axis. The cartridge assembly is disposed adjacent a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The pusher assembly is movable to cause staples to be ejected from the cartridge assembly. The knife assembly is selectively movable relative to the pusher assembly to distally translate a knife. A knife carrier of the knife assembly includes at least one latch thereon. The at least one latch is configured to contact an engagement surface of the pusher assembly in response to movement between the knife carrier and the pusher assembly. The at least one latch is prevented from distally translating beyond the engagement surface.Type: ApplicationFiled: July 11, 2013Publication date: January 15, 2015Inventor: Keith Milliman
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Patent number: 8931680Abstract: A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.Type: GrantFiled: August 13, 2014Date of Patent: January 13, 2015Assignee: Covidien LPInventor: Keith Milliman
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Publication number: 20140353355Abstract: A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.Type: ApplicationFiled: August 13, 2014Publication date: December 4, 2014Inventor: Keith Milliman
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Patent number: 8833630Abstract: A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.Type: GrantFiled: February 14, 2014Date of Patent: September 16, 2014Assignee: Covidien LPInventor: Keith Milliman
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Publication number: 20140217147Abstract: An anvil assembly includes a circular anvil head that supports a crush ring, an anvil cap that supports an o-ring, and a circular anvil buttress member. The cap connects to the head and is movable relative to the head between approximated and unapproximated positions. The crush ring is spaced from the cap when the cap is in the approximated position and movable into engagement with the cap to move the cap to the unapproximated position. The buttress member includes a body portion and an extension portion. The body portion is supported on the head and the extension portion is secureable between the o-ring and the head when the cap is in the approximated position. The extension portion is releasable from between the o-ring and the head when the cap is disposed in the unapproximated position so that the body portion separates from the head.Type: ApplicationFiled: February 4, 2013Publication date: August 7, 2014Applicant: COVIDIEN LPInventor: Keith Milliman
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Publication number: 20140158745Abstract: A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.Type: ApplicationFiled: February 14, 2014Publication date: June 12, 2014Applicant: Covidien LPInventor: Keith Milliman
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Patent number: 8684248Abstract: A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.Type: GrantFiled: February 29, 2012Date of Patent: April 1, 2014Assignee: Covidien LPInventor: Keith Milliman
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Patent number: 8663246Abstract: A method of deforming a plurality of surgical fasteners is provided. The method includes the step of providing a surgical instrument having a loading unit supporting the plurality of surgical fasteners in an array, the surgical instrument having a handle, a distal link, an intermediate link, and a proximal link. The method further includes the steps of moving the handle in a direction to pivot the intermediate link to a position in which the distal link, intermediate link, and proximal link have a fully-extended position, compressing a spring disposed adjacent the proximal link, deforming the surgical fasteners, moving the handle further in the direction, pivoting the intermediate link to another position in which the distal link, intermediate link, and proximal link have a deflected position and releasing the surgical fasteners from the loading unit.Type: GrantFiled: October 3, 2008Date of Patent: March 4, 2014Assignee: Covidien LPInventors: Keith Milliman, Kevin Sniffen, Joseph P. Orban, III, Lisa W. Heaton
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Publication number: 20130277412Abstract: This application is directed to a surgical stapling device for performing circular anastomoses. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. A tactile indication mechanism is also provided for notifying a surgeon that the device has been fired and for notifying a surgeon that the anvil head has been unapproximated a distance sufficient to permit the anvil head to tilt.Type: ApplicationFiled: March 7, 2013Publication date: October 24, 2013Inventors: Richard D. Gresham, Scott Manzo, Ernest Aranyi, Robert Geiste, Bruce Jankowski, Keith Milliman
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Publication number: 20130253578Abstract: An anvil assembly for use therewith a surgical fastener applying apparatus including an anvil plate and an anvil head configured and dimensioned to support the anvil plate. The anvil plate and the anvil head may be formed from different materials. The anvil plate can include a tapered outer side wall allowing the anvil assembly to realize a substantially uniform proximal-most surface upon assembly.Type: ApplicationFiled: May 20, 2013Publication date: September 26, 2013Applicant: Covidien LPInventor: Keith Milliman
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Patent number: 8464924Abstract: This application is directed to a surgical stapling device for performing circular anastomoses. 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 handle portion includes a rotatable approximation knob for approximating the anvil and shell assemblies and a firing trigger for actuating a firing mechanism for ejecting staples positioned within the shell assembly. The firing trigger forms one link of a two bar linkage provided to actuate the firing mechanism. The anvil assembly includes a tiltable anvil which will tilt automatically after firing of the device and unapproximating the anvil and shell assemblies. The head portion also includes a retractable trocar assembly which is slidably positioned within an anvil retainer and is automatically advanced and retracted upon attachment and detachment of the anvil assembly onto the anvil retainer, and a lockout tube.Type: GrantFiled: May 16, 2007Date of Patent: June 18, 2013Assignee: Covidien LPInventors: Richard D. Gresham, Scott E. Manzo, Ernest Aranyi, Robert J. Geiste, Bruce K. Jankowski, Keith Milliman
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Publication number: 20120153005Abstract: A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.Type: ApplicationFiled: February 29, 2012Publication date: June 21, 2012Inventor: Keith Milliman
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Patent number: 8146790Abstract: A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.Type: GrantFiled: May 17, 2010Date of Patent: April 3, 2012Assignee: Tyco Healthcare Group LPInventor: Keith Milliman