Patents by Inventor Paul A. Scirica
Paul A. Scirica 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: 11844522Abstract: A surgical device is disclosed. The surgical device includes: a jaw assembly including a first jaw and a second jaw moveable relative to the first jaw; and an articulating assembly removably coupled to the proximal end of the jaw assembly, the articulating including a distal joint member, a proximal joint member, and a pivot pin fixedly coupled to the distal joint member and rotatably coupled to the proximal joint member, wherein the jaw assembly and the distal joint member define a first longitudinal axis extending between a proximal end of the jaw assembly and a distal end of the distal joint member, and the proximal joint member defines a second longitudinal axis.Type: GrantFiled: December 14, 2020Date of Patent: December 19, 2023Assignee: Covidien LPInventors: Paul A. Scirica, Justin Williams, Kevin Robert Slisz
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Patent number: 11806018Abstract: An end effector for use with a surgical apparatus. The end effector comprising a staple cartridge having a tissue contacting surface defining a central longitudinal slot and an anvil plate having a tissue contacting surface defining a central longitudinal slot. A folded surgical buttress configured to overlie each of the tissue contacting surfaces of the staple cartridge and anvil plate and configured to retain the surgical buttress to the tissue contacting surfaces of each of the staple cartridge and anvil plate. The surgical buttress having a first longitudinal portion, a second longitudinal portion, and middle longitudinal portion between the first and second longitudinal portions, wherein the middle longitudinal portion is folded and configured to fit within the central longitudinal slot of each of the staple cartridge and anvil plate.Type: GrantFiled: May 3, 2021Date of Patent: November 7, 2023Assignee: COVIDEN LPInventors: Richard P. Stevenson, Paul A. Scirica
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Patent number: 11696762Abstract: A surgical stapler includes a tubular body portion and a cartridge assembly disposed at a distal end of the body portion for expelling an annular array of staples. Each of the staples of the annular array of staples has a generally bent backspan. An anvil member disposed at the distal end of the tubular body portion is positioned opposite the cartridge assembly to clinch the staples in tissue upon expulsion of the staples from the cartridge assembly. The anvil member has a corresponding annular array of staple forming buckets. Each of the buckets is configured to accommodate the generally bent configuration of the staples to facilitate formation thereof.Type: GrantFiled: April 3, 2020Date of Patent: July 11, 2023Assignee: COVIDIEN LPInventors: Christopher P. Penna, Justin Williams, Paul A. Scirica, David Racenet
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Patent number: 11589866Abstract: A surgical device includes a jaw assembly, an articulating assembly and a drive shaft. The jaw assembly includes first and second jaws. The articulating assembly is removably coupled to a proximal end of the jaw assembly and includes a distal joint member, a proximal joint member, and a pivot pin. The pivot pin is fixedly coupled to the distal joint member and is rotatably coupled to the proximal joint member. The jaw assembly and the distal joint member together define a first longitudinal axis. The proximal joint member defines a second longitudinal axis. The drive shaft includes a gear element that is meshingly engaged with a pivoting gear element that is fixedly coupled to the pivot pin. Longitudinal movement of the first drive shaft pivots the jaw assembly relative to the proximal joint member about a pivot axis defined by the pivot pin.Type: GrantFiled: May 8, 2020Date of Patent: February 28, 2023Assignee: Covidien LPInventors: David A. Nicholas, Paul A. Scirica, Justin Williams, Kevin Slisz
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Patent number: 11207089Abstract: An electromechanical surgical system having an instrument housing for connecting with a shaft assembly, a shaft assembly, and an end effector. The end effector is an articulating end effector and the system includes a cable tensioning system for tensioning the articulation cables. The system includes a clutch mechanism for preventing slippage of a drive cable.Type: GrantFiled: January 9, 2020Date of Patent: December 28, 2021Assignee: Covidien LPInventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul A. Scirica
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Publication number: 20210251629Abstract: An end effector for use with a surgical apparatus. The end effector comprising a staple cartridge having a tissue contacting surface defining a central longitudinal slot and an anvil plate having a tissue contacting surface defining a central longitudinal slot. A folded surgical buttress configured to overlie each of the tissue contacting surfaces of the staple cartridge and anvil plate and configured to retain the surgical buttress to the tissue contacting surfaces of each of the staple cartridge and anvil plate. The surgical buttress having a first longitudinal portion, a second longitudinal portion, and middle longitudinal portion between the first and second longitudinal portions, wherein the middle longitudinal portion is folded and configured to fit within the central longitudinal slot of each of the staple cartridge and anvil plate.Type: ApplicationFiled: May 3, 2021Publication date: August 19, 2021Inventors: Richard P. Stevenson, Paul A. Scirica
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Patent number: 11071541Abstract: A loading unit including a shipping member is provided. The loading unit includes a housing, a staple pushing assembly, a knife assembly, and a staple cartridge. The shipping member is configured to be selectively secured to the housing of the loading unit and prevents advancement of the staple pushing assembly and the knife assembly. The shipping member also retains staples within the staple cartridge.Type: GrantFiled: July 5, 2018Date of Patent: July 27, 2021Assignee: Covidien LPInventors: Justin Williams, Christopher Penna, Paul A. Scirica
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Publication number: 20210093323Abstract: A surgical device is disclosed. The surgical device includes: a jaw assembly including a first jaw and a second jaw moveable relative to the first jaw; and an articulating assembly removably coupled to the proximal end of the jaw assembly, the articulating including a distal joint member, a proximal joint member, and a pivot pin fixedly coupled to the distal joint member and rotatably coupled to the proximal joint member, wherein the jaw assembly and the distal joint member define a first longitudinal axis extending between a proximal end of the jaw assembly and a distal end of the distal joint member, and the proximal joint member defines a second longitudinal axis.Type: ApplicationFiled: December 14, 2020Publication date: April 1, 2021Inventors: Paul A. Scirica, Justin Williams, Kevin Robert Slisz
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Patent number: 10874392Abstract: A surgical device is disclosed. The surgical device includes: a jaw assembly including a first jaw and a second jaw moveable relative to the first jaw; and an articulating assembly removably coupled to the proximal end of the jaw assembly, the articulating including a distal joint member, a proximal joint member, and a pivot pin fixedly coupled to the distal joint member and rotatably coupled to the proximal joint member, wherein the jaw assembly and the distal joint member define a first longitudinal axis extending between a proximal end of the jaw assembly and a distal end of the distal joint member, and the proximal joint member defines a second longitudinal axis.Type: GrantFiled: July 3, 2017Date of Patent: December 29, 2020Assignee: Covidien LPInventors: Paul A. Scirica, Justin Williams, Kevin Robert Slisz
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Publication number: 20200261090Abstract: A surgical device includes a jaw assembly, an articulating assembly and a drive shaft. The jaw assembly includes first and second jaws. The articulating assembly is removably coupled to a proximal end of the jaw assembly and includes a distal joint member, a proximal joint member, and a pivot pin. The pivot pin is fixedly coupled to the distal joint member and is rotatably coupled to the proximal joint member. The jaw assembly and the distal joint member together define a first longitudinal axis. The proximal joint member defines a second longitudinal axis. The drive shaft includes a gear element that is meshingly engaged with a pivoting gear element that is fixedly coupled to the pivot pin. Longitudinal movement of the first drive shaft pivots the jaw assembly relative to the proximal joint member about a pivot axis defined by the pivot pin.Type: ApplicationFiled: May 8, 2020Publication date: August 20, 2020Inventors: David A. Nicholas, Paul A. Scirica, Justin Williams, Kevin Slisz
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Patent number: 10722234Abstract: A loading unit for use with a surgical stapling apparatus including a tool assembly and a surgical buttress. The tool assembly includes: a cartridge assembly including a staple cartridge having a tissue facing surface, staple retaining pockets having a plurality of surgical fasteners therein, and a knife slot; and an anvil assembly including an anvil plate having a tissue facing surface defining staple forming pockets and a knife slot. The surgical buttress is attached to the tissue facing surface of at least one of the cartridge assembly or the anvil assembly, and conforms to the tissue facing surface such that the surgical buttress is deformed locally into the staple retaining pockets and the knife slot of the cartridge assembly or the staple forming pockets and the knife slot of the anvil assembly to which the surgical buttress is attached.Type: GrantFiled: June 19, 2018Date of Patent: July 28, 2020Assignee: COVIDIEN LPInventors: Gerald N. Hodgkinson, Paul A. Scirica
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Publication number: 20200229821Abstract: A surgical stapler includes a tubular body portion and a cartridge assembly disposed at a distal end of the body portion for expelling an annular array of staples. Each of the staples of the annular array of staples has a generally bent backspan. An anvil member disposed at the distal end of the tubular body portion is positioned opposite the cartridge assembly to clinch the staples in tissue upon expulsion of the staples from the cartridge assembly. The anvil member has a corresponding annular array of staple forming buckets. Each of the buckets is configured to accommodate the generally bent configuration of the staples to facilitate formation thereof.Type: ApplicationFiled: April 3, 2020Publication date: July 23, 2020Inventors: Christopher P. PENNA, Justin WILLIAMS, Paul A. SCIRICA, David RACENET
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Patent number: 10646224Abstract: A surgical device includes a jaw assembly, an articulating assembly and a drive shaft. The jaw assembly includes first and second jaws. The articulating assembly is removably coupled to a proximal end of the jaw assembly and includes a distal joint member, a proximal joint member, and a pivot pin. The pivot pin is fixedly coupled to the distal joint member and is rotatably coupled to the proximal joint member. The jaw assembly and the distal joint member together define a first longitudinal axis. The proximal joint member defines a second longitudinal axis. The drive shaft includes a gear element that is meshingly engaged with a pivoting gear element that is fixedly coupled to the pivot pin. Longitudinal movement of the first drive shaft pivots the jaw assembly relative to the proximal joint member about a pivot axis defined by the pivot pin.Type: GrantFiled: October 3, 2017Date of Patent: May 12, 2020Assignee: COVIDIEN LPInventors: David A. Nicholas, Paul A. Scirica, Justin Williams, Kevin Slisz
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Publication number: 20200138463Abstract: An electromechanical surgical system having an instrument housing for connecting with a shaft assembly, a shaft assembly, and an end effector. The end effector is an articulating end effector and the system includes a cable tensioning system for tensioning the articulation cables. The system includes a clutch mechanism for preventing slippage of a drive cable.Type: ApplicationFiled: January 9, 2020Publication date: May 7, 2020Inventors: Stanislaw KOSTRZEWSKI, Ernest ARANYI, Paul A. SCIRICA
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Patent number: 10568651Abstract: An electromechanical surgical system having an instrument housing for connecting with a shaft assembly, a shaft assembly, and an end effector. The end effector is an articulating end effector and the system includes a cable tensioning system for tensioning the articulation cables. The system includes a clutch mechanism for preventing slippage of a drive cable.Type: GrantFiled: October 17, 2016Date of Patent: February 25, 2020Assignee: COVIDIEN LPInventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul A. Scirica
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Patent number: 10426480Abstract: The present disclosure relates to a cut ring assembly including a backup member, an intermediate member and a cutting ring body. The intermediate member is formed of a thin, rigid material that is sandwiched between the backup member and the cutting ring body. The thin, rigid material is formed of a material having a hardness less than the hardness of the backup member and greater than the hardness of the cutting ring body. The present disclosure also relates to an anvil assembly including such a cut ring assembly.Type: GrantFiled: March 17, 2016Date of Patent: October 1, 2019Assignee: Covidien LPInventors: Paul A. Scirica, Steven Joyce, Justin Williams, Charles Kollar, Christopher Penna
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Patent number: 10342536Abstract: An electromechanical surgical system includes a hand-held surgical instrument; an end effector; and a shaft assembly for selectively interconnecting the end effector and the surgical device. The shaft assembly includes a transmission housing; an outer tubular body; a distal neck housing for interconnecting a rotatable drive member of the surgical instrument and a rotation receiving member supported in the end effector, wherein the distal neck housing includes at least one gear system configured to convert a rotational input of the rotatable drive member into at least two output forces to the end effector; and an articulating neck assembly interconnecting the tubular body and the distal neck housing. The articulating neck assembly enables off-axis articulation of the distal neck assembly, and wherein the rotatable drive member extends through the articulating neck assembly.Type: GrantFiled: June 27, 2016Date of Patent: July 9, 2019Assignee: Covidien LPInventors: Justin Williams, Paul A. Scirica, Ernest Aranyi, Stanislaw Kostrzewski
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Patent number: 10342629Abstract: A shipping member for selective attachment to a replaceable loading unit is provided. The shipping member includes an annular extension configured for selective engagement with a loading unit and configured to prevent movement of a knife assembly of the loading unit. The shipping member further includes first and second legs configured to prevent movement of a staple pusher assembly. The shipping member also includes a staple retaining surface configured to retain staples within a staple cartridge of the loading unit.Type: GrantFiled: July 13, 2018Date of Patent: July 9, 2019Assignee: Covidien LPInventors: Christopher Penna, Patrick Mozdzierz, Paul A. Scirica, Justin Williams
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Publication number: 20180318030Abstract: A shipping member for selective attachment to a replaceable loading unit is provided. The shipping member includes an annular extension configured for selective engagement with a loading unit and configured to prevent movement of a knife assembly of the loading unit. The shipping member further includes first and second legs configured to prevent movement of a staple pusher assembly. The shipping member also includes a staple retaining surface configured to retain staples within a staple cartridge of the loading unit.Type: ApplicationFiled: July 13, 2018Publication date: November 8, 2018Inventors: Christopher Penna, Patrick Mozdzierz, Paul A. Scirica, Justin Williams
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Publication number: 20180310934Abstract: A loading unit including a shipping member is provided. The loading unit includes a housing, a staple pushing assembly, a knife assembly, and a staple cartridge. The shipping member is configured to be selectively secured to the housing of the loading unit and prevents advancement of the staple pushing assembly and the knife assembly. The shipping member also retains staples within the staple cartridge.Type: ApplicationFiled: July 5, 2018Publication date: November 1, 2018Inventors: Justin Williams, Christopher Penna, Paul A. Scirica