Patents by Inventor Paul Scirica
Paul 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: 12207833Abstract: The technology relates to a surgical system with an end effector. The end effector may include a drive beam, an anvil assembly, and a cartridge assembly movable in relation to the anvil assembly between an open position and a clamped position. The cartridge assembly includes a cartridge body, staples supported within the cartridge body, and an actuation sled assembly. The actuation sled assembly includes an actuation sled and a knife blade supported on the actuation sled for movement between a concealed position and a raised position. The actuation sled assembly is movable within the cartridge body in response to movement of the drive beam from the beam retracted position to the beam advanced position, from a sled retracted position to a sled advanced position to eject the staples from the cartridge body.Type: GrantFiled: June 15, 2023Date of Patent: January 28, 2025Assignee: Covidien LPInventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Patent number: 12127735Abstract: An electromechanical surgical device includes an end effector configured to perform at least one function, the end effector including an input drive axle projecting therefrom; and a shaft assembly. The shaft assembly includes a rotatable drive shaft; a proximal neck housing supported at a distal end of an outer tube; a distal neck housing pivotally connected to the proximal neck housing; a pivot pin interconnecting the proximal neck housing and the distal neck housing; and a gear train supported in the proximal neck housing, on the pivot pin, and in the distal neck housing. The gear train includes a proximal gear; an intermediate gear; a distal gear; and a pair of output gears, wherein each output gear defines a coupling socket each configured to selectively receive the drive axle of the end effector.Type: GrantFiled: October 26, 2021Date of Patent: October 29, 2024Assignee: Covidien LPInventors: Justin Williams, Paul Scirica
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Patent number: 12035933Abstract: An end effector includes an upper jaw, a lower jaw, and a staple cartridge assembly that is received within the lower jaw. The staple cartridge assembly includes an actuation sled and a knife sled. A drive beam is received within the lower jaw and is movable between a retracted beam position and an advanced beam position to move the actuation sled and the knife sled from retracted positions to advanced positions. The end effector includes a locking clip to releasably couple the drive beam to the knife sled.Type: GrantFiled: November 10, 2022Date of Patent: July 16, 2024Assignee: Covidien LPInventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Patent number: 11957341Abstract: A cartridge assembly includes a channel and a removable assembly in releasable engagement with the channel. The removable assembly includes a cartridge body and a support plate. The cartridge body includes an engagement structure disposed adjacent a proximal end thereof. The support plate is configured to mechanically engage the cartridge body and includes an engagement structure disposed adjacent a proximal end thereof. The engagement structure of the cartridge body is configured for longitudinal alignment with the engagement structure of the support plate. The engagement structures of the cartridge body and the engagement structure of the support plate are configured to mechanically engage the engagement structure of the channel when the removable assembly is engaged with the channel.Type: GrantFiled: February 11, 2022Date of Patent: April 16, 2024Assignee: Covidien LPInventors: Stanislaw Kostrzewski, Ernie Aranyi, Paul Scirica, William Powers
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Patent number: 11957372Abstract: 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. The electromechanical system includes a staple cartridge that includes a knife that is movable between a raised position and a lowered position.Type: GrantFiled: June 14, 2023Date of Patent: April 16, 2024Assignee: Covidien LPInventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Publication number: 20230320744Abstract: 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: June 15, 2023Publication date: October 12, 2023Inventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Publication number: 20230320743Abstract: 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: June 14, 2023Publication date: October 12, 2023Inventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Patent number: 11717286Abstract: A surgical stapling device has an elongated body and a removable loading unit and a securing structure for securing the loading unit onto the elongated body. A guiding ramp guides the movement of the loading unit as it is mounted onto the loading portion. The locking structure has a first position for locking movement of the loading unit and enabling firing rod to engage the loading unit. The locking unit has a second position for allowing the loading unit to be disengaged and removed from the device.Type: GrantFiled: February 7, 2020Date of Patent: August 8, 2023Inventor: Paul Scirica
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Publication number: 20230061302Abstract: 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: November 10, 2022Publication date: March 2, 2023Inventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Patent number: 11540851Abstract: 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 6, 2021Date of Patent: January 3, 2023Assignee: Covidien LPInventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Patent number: 11497517Abstract: A surgical instrument includes a first jaw defining a channel, a second jaw including an anvil plate, a staple cartridge, and a drive beam. The staple cartridge is received in the channel and includes a sled, a knife blade, a plurality of staple pushers, and a plurality of staples. The sled is movable into engagement with the staple pushers to eject the staples from the staple cartridge. The knife blade is secured to the sled and is movable between raised and lowered positions.Type: GrantFiled: December 7, 2021Date of Patent: November 15, 2022Assignee: Covidien LPInventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Publication number: 20220225985Abstract: A cartridge assembly includes a channel and a removable assembly in releasable engagement with the channel. The removable assembly includes a cartridge body and a support plate. The cartridge body includes an engagement structure disposed adjacent a proximal end thereof. The support plate is configured to mechanically engage the cartridge body and includes an engagement structure disposed adjacent a proximal end thereof. The engagement structure of the cartridge body is configured for longitudinal alignment with the engagement structure of the support plate. The engagement structures of the cartridge body and the engagement structure of the support plate are configured to mechanically engage the engagement structure of the channel when the removable assembly is engaged with the channel.Type: ApplicationFiled: February 11, 2022Publication date: July 21, 2022Inventors: Stanislaw Kostrzewski, Ernie Aranyi, Paul Scirica, William Powers
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Patent number: 11369375Abstract: Interlock assemblies for attaching a loading unit to a surgical stapling instrument are provided. The interlock assemblies are formed on a proximal end of a shell member and on a distal end of an adapter assembly. The interlock assemblies may include a collar member for selectively securing the shell member to the adapter assembly. The collar member may be mounted on the shell member or on the adapter assembly.Type: GrantFiled: April 7, 2020Date of Patent: June 28, 2022Assignee: Covidien LPInventors: Christopher Penna, Paul Scirica, Patrick Mozdzierz, Justin Williams
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Patent number: 11357507Abstract: An anvil assembly, an end effector, and/or a surgical stapler are suitable for performing curved or circular anastomosis and/or treatment to internal walls of hollow tissue organs. The anvil assembly includes an anvil center rod and an anvil head secured to a distal end of the anvil center rod. The anvil head includes an anvil plate defining a tissue contact surface and a plurality of staple forming pockets formed in the tissue contact surface of the anvil plate. Each of the staple forming pockets defines an arcuate longitudinal axis.Type: GrantFiled: October 28, 2019Date of Patent: June 14, 2022Assignee: Covidien LPInventors: Paul Scirica, David Racenet
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Patent number: 11350930Abstract: A surgical instrument including a handle portion, a body portion, a movable handle, a tool assembly, a drive beam and a closure apparatus is disclosed. At least one of the closure apparatus and a contact surface of the tool assembly include a plastic surface. The body portion extends distally from the handle portion. The movable handle is located on the handle portion and is in mechanical cooperation with a drive member. The tool assembly includes an anvil, a cartridge assembly and a contact surface. The drive beam includes a proximal engagement portion and is configured to engage a portion of the drive member. The closure apparatus is configured to engage the contact surface of the tool assembly. At least a partial actuation of the movable handle moves the closure apparatus distally into engagement with the contact surface to approximate the anvil and the cartridge assembly.Type: GrantFiled: December 4, 2020Date of Patent: June 7, 2022Assignee: Covidien LPInventor: Paul Scirica
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Patent number: 11317914Abstract: 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: June 11, 2019Date of Patent: May 3, 2022Assignee: Covidien LPInventors: Paul Scirica, Todd Demmy, Lee Ann Olson
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Patent number: 11284895Abstract: 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: February 22, 2021Date of Patent: March 29, 2022Assignee: Covidien LPInventors: Paul Scirica, Todd Demmy, Lee Ann Olson
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Publication number: 20220087702Abstract: 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: December 7, 2021Publication date: March 24, 2022Inventors: Stanislaw Kostrzewski, Ernest Aranyi, Paul Scirica
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Patent number: 11246591Abstract: A cartridge assembly is disclosed. The cartridge assembly includes a channel and a removable assembly in releasable engagement with the channel. The removable assembly includes a cartridge body and a support plate. The cartridge body includes an engagement structure disposed adjacent a proximal end thereof. The support plate is configured to mechanically engage the cartridge body and includes an engagement structure disposed adjacent a proximal end thereof. The engagement structure of the cartridge body is configured for longitudinal alignment with the engagement structure of the support plate. The engagement structures of the cartridge body and the engagement structure of the support plate are configured to mechanically engage the engagement structure of the channel when the removable assembly is engaged with the channel.Type: GrantFiled: October 14, 2019Date of Patent: February 15, 2022Assignee: Covidien LPInventors: Stanislaw Kostrzewski, Ernie Aranyi, Paul Scirica, William Powers
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Publication number: 20220039785Abstract: An electromechanical surgical device includes an end effector configured to perform at least one function, the end effector including an input drive axle projecting therefrom; and a shaft assembly. The shaft assembly includes a rotatable drive shaft; a proximal neck housing supported at a distal end of an outer tube; a distal neck housing pivotally connected to the proximal neck housing; a pivot pin interconnecting the proximal neck housing and the distal neck housing; and a gear train supported in the proximal neck housing, on the pivot pin, and in the distal neck housing. The gear train includes a proximal gear; an intermediate gear; a distal gear; and a pair of output gears, wherein each output gear defines a coupling socket each configured to selectively receive the drive axle of the end effector.Type: ApplicationFiled: October 26, 2021Publication date: February 10, 2022Inventors: Justin Williams, Paul Scirica