Patents by Inventor Matthew J. Chowaniec
Matthew J. Chowaniec 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: 11957348Abstract: An anvil buttress loading system includes an anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil buttress, and is transferrable from the anvil buttress loading tool to the anvil assembly.Type: GrantFiled: July 28, 2022Date of Patent: April 16, 2024Assignee: COVIDIEN LPInventors: Pawel Abramek, Kenneth M. Cappola, Matthew J. Chowaniec, Roanit Fernandes
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Patent number: 11918218Abstract: An end effector for use with a surgical stapler includes a staple cartridge assembly movable relative to an anvil assembly. The staple cartridge assembly defines a plurality of retention slots and a cavity. The staple cartridge assembly includes a plurality of staples, a plurality of pushers, an actuation sled, a surgical buttress material, a suture, and an anchoring button. The actuation sled is configured for movement along a length of the staple cartridge assembly to sequentially engage the plurality of pushers to eject the plurality of staples through the respective plurality of retention slots. The anchoring button is configured to be received in the cavity of the staple cartridge assembly such that a portion of the suture is supported in the cavity to be severed by a knife blade of the actuation sled when the actuation sled is advanced distally.Type: GrantFiled: February 24, 2022Date of Patent: March 5, 2024Assignee: COVIDIEN LPInventors: Roanit Fernandes, Suresh Kumar Prema Mohanasundaram, Jitendra Bhargava Srinivas, Matthew J. Chowaniec
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Publication number: 20220361875Abstract: An anvil buttress loading system includes an anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil buttress, and is transferrable from the anvil buttress loading tool to the anvil assembly.Type: ApplicationFiled: July 28, 2022Publication date: November 17, 2022Inventors: Pawel Abramek, Kenneth M. Cappola, Matthew J. Chowaniec, Roanit Fernandes
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Publication number: 20220304692Abstract: A staple cartridge is adapted to enhance cell migration towards a wound site when staples are placed in tissue. In order to enhance cell migration, the staples in the staple cartridge are adapted to create an electrical potential within the tissue in the area of a wound or cut line. More specifically, the staples are arranged in spaced rings, wherein the staples in the spaced rings are formed of dissimilar metals having different anodic indexes to create a voltage gradient in the tissue to enhance cell migration toward the cut line.Type: ApplicationFiled: March 10, 2022Publication date: September 29, 2022Inventors: Olesea Diaz-Chiosa, Robert H. Knapp, Matthew S. Eschbach, Matthew J. Chowaniec, Johana M. Marinelli
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Patent number: 11399833Abstract: An anvil buttress loading system includes an anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil buttress, and is transferrable from the anvil buttress loading tool to the anvil assembly.Type: GrantFiled: October 19, 2020Date of Patent: August 2, 2022Assignee: Covidien LPInventors: Pawel Abramek, Kenneth M. Cappola, Matthew J. Chowaniec, Roanit Fernandes
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Publication number: 20220175379Abstract: An end effector for use with a surgical stapler includes a staple cartridge assembly movable relative to an anvil assembly. The staple cartridge assembly defines a plurality of retention slots and a cavity. The staple cartridge assembly includes a plurality of staples, a plurality of pushers, an actuation sled, a surgical buttress material, a suture, and an anchoring button. The actuation sled is configured for movement along a length of the staple cartridge assembly to sequentially engage the plurality of pushers to eject the plurality of staples through the respective plurality of retention slots. The anchoring button is configured to be received in the cavity of the staple cartridge assembly such that a portion of the suture is supported in the cavity to be severed by a knife blade of the actuation sled when the actuation sled is advanced distally.Type: ApplicationFiled: February 24, 2022Publication date: June 9, 2022Inventors: Roanit Fernandes, Suresh Kumar Prema Mohanasundaram, Jitendra Bhargava Srinivas, Matthew J. Chowaniec
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Publication number: 20220117600Abstract: An anvil buttress loading system includes an anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil buttress, and is transferrable from the anvil buttress loading tool to the anvil assembly.Type: ApplicationFiled: October 19, 2020Publication date: April 21, 2022Inventors: Pawel Abramek, Kenneth M. Cappola, Matthew J. Chowaniec, Roanit Fernandes
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Patent number: 11272937Abstract: An end effector for use with a surgical stapler includes a staple cartridge assembly movable relative to an anvil assembly. The staple cartridge assembly defines a plurality of retention slots and a cavity. The staple cartridge assembly includes a plurality of staples, a plurality of pushers, an actuation sled, a surgical buttress material, a suture, and an anchoring button. The actuation sled is configured for movement along a length of the staple cartridge assembly to sequentially engage the plurality of pushers to eject the plurality of staples through the respective plurality of retention slots. The anchoring button is configured to be received in the cavity of the staple cartridge assembly such that a portion of the suture is supported in the cavity to be severed by a knife blade of the actuation sled when the actuation sled is advanced distally.Type: GrantFiled: January 22, 2020Date of Patent: March 15, 2022Assignee: Covidien LPInventors: Roanit Fernandes, Suresh Kumar Prema Mohanasundaram, Jitendra Bhargava Srinivas, Matthew J. Chowaniec
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Patent number: 11123068Abstract: A staple cartridge is adapted to enhance cell migration towards a wound site when staples are placed in tissue. In order to enhance cell migration, the staple cartridge is adapted to create an electrical potential within the tissue in the area of a wound or cut line. In embodiments, the electrical potential is created within the tissue by using staples in spaced rows formed of dissimilar metals having different anodic indexes to create a voltage gradient in the tissue to enhance cell migration toward the cut line.Type: GrantFiled: November 8, 2019Date of Patent: September 21, 2021Assignee: Covidien LPInventors: Matthew Eschbach, Matthew J. Chowaniec, Johana Marinelli, Robert Knapp
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Publication number: 20210219977Abstract: An end effector for use with a surgical stapler includes a staple cartridge assembly movable relative to an anvil assembly. The staple cartridge assembly defines a plurality of retention slots and a cavity. The staple cartridge assembly includes a plurality of staples, a plurality of pushers, an actuation sled, a surgical buttress material, a suture, and an anchoring button. The actuation sled is configured for movement along a length of the staple cartridge assembly to sequentially engage the plurality of pushers to eject the plurality of staples through the respective plurality of retention slots. The anchoring button is configured to be received in the cavity of the staple cartridge assembly such that a portion of the suture is supported in the cavity to be severed by a knife blade of the actuation sled when the actuation sled is advanced distally.Type: ApplicationFiled: January 22, 2020Publication date: July 22, 2021Inventors: Roanit Fernandes, Suresh Kumar Prema Mohanasundaram, Jitendra Bhargava Srinivas, Matthew J. Chowaniec
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Publication number: 20210177401Abstract: A surgical stapler includes a tool assembly that has a cartridge assembly, an anvil assembly, and a dissector tip. The dissector tip is moveable between a first configuration aligned with a longitudinal axis of the tool assembly and a second configuration defining an acute angle with the longitudinal axis of the tool assembly.Type: ApplicationFiled: December 13, 2019Publication date: June 17, 2021Inventors: Pawel Abramek, Kenneth M. Cappola, Matthew J. Chowaniec, Zalika Walcott
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Publication number: 20210137521Abstract: A staple cartridge is adapted to enhance cell migration towards a wound site when staples are placed in tissue. In order to enhance cell migration, the staple cartridge is adapted to create an electrical potential within the tissue in the area of a wound or cut line. In embodiments, the electrical potential is created within the tissue by using staples in spaced rows formed of dissimilar metals having different anodic indexes to create a voltage gradient in the tissue to enhance cell migration toward the cut line.Type: ApplicationFiled: November 8, 2019Publication date: May 13, 2021Inventors: Matthew Eschbach, Matthew J. Chowaniec, Johana Marinelli, Robert Knapp
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Publication number: 20200352568Abstract: The present disclosure is directed to a surgical apparatus, comprising an anvil jaw configured to form at least one surgical staple, a cartridge jaw configured to deploy one or more surgical staples against the anvil jaw, and a pressure distribution device attached to at least one of the anvil jaw and the cartridge jaw, wherein the pressure distribution device is configured to distribute a clamping pressure to a target tissue during a clamping and a stapling of the target tissue.Type: ApplicationFiled: July 24, 2020Publication date: November 12, 2020Inventors: Matthew J. Chowaniec, Xingrui Chen, Peter T. Collings, Luis Dussan, Paul D. Richard
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Patent number: 10786251Abstract: The present disclosure is directed to a surgical apparatus, comprising an anvil jaw configured to form at least one surgical staple, a cartridge jaw configured to deploy one or more surgical staples against the anvil jaw, and a pressure distribution device attached to at least one of the anvil jaw and the cartridge jaw, wherein the pressure distribution device is configured to distribute a clamping pressure to a target tissue during a clamping and a stapling of the target tissue.Type: GrantFiled: December 2, 2016Date of Patent: September 29, 2020Assignee: COVIDIEN LPInventors: Matthew J. Chowaniec, Xingrui Chen, Peter T. Collings, Luis Dussan, Paul D. Richard
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Publication number: 20200197119Abstract: A hand-held electromechanical surgical device configured to selectively connect with a surgical accessory, is provided and includes a handle assembly having a power pack with a core assembly. The core assembly includes a plurality of motors, with each motor having a rotatable drive shaft extending therefrom, wherein each drive shaft is parallel to one another; a processor connected to and configured to control each motor; and a battery electrically connected to the processor and each motor. The power pack includes an inner housing encasing at least the plurality of motors, the processor, and the battery. The handle assembly includes an outer shell housing configured to selectively encase substantially the entire power pack therein, wherein a rotation from each rotatable drive shaft of each motor is transmitted through the inner housing and the outer shell housing.Type: ApplicationFiled: February 11, 2020Publication date: June 25, 2020Inventors: Earl M. Zergiebel, Matthew J. Chowaniec
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Patent number: 9955965Abstract: The present disclosure provides a surgical device, comprising: a jaw assembly defining a first longitudinal axis and including a first jaw and a second jaw moveable relative to the first jaw; an elongated body defining a second longitudinal axis and coupled to a proximal end of the jaw assembly, wherein the jaw assembly is configured to articulate about an articulation axis transverse to the second longitudinal axis relative to the elongated body; a handle assembly coupled to a proximal end of the elongated body and comprising at least one motor mechanically coupled to the jaw assembly; and a control assembly coupled to the handle assembly, the control assembly including a first control button, a second control button, a first rocker device disposed about the first control button and configured to rotate thereabout, and a second rocker device disposed about the second control button and configured to rotate thereabout.Type: GrantFiled: June 10, 2013Date of Patent: May 1, 2018Assignee: Covidien LPInventors: Xingrui Chen, David A. Nicholas, Matthew J. Chowaniec, Michael A. Zemlok, Blaine Williams, Anthony Calderoni
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Publication number: 20170079649Abstract: The present disclosure is directed to a surgical apparatus, comprising an anvil jaw configured to form at least one surgical staple, a cartridge jaw configured to deploy one or more surgical staples against the anvil jaw, and a pressure distribution device attached to at least one of the anvil jaw and the cartridge jaw, wherein the pressure distribution device is configured to distribute a clamping pressure to a target tissue during a clamping and a stapling of the target tissue.Type: ApplicationFiled: December 2, 2016Publication date: March 23, 2017Inventors: Matthew J. Chowaniec, Xingrui Chen, Peter T. Collings, Luis Dussan, Paul D. Richard
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Patent number: 9522002Abstract: The present disclosure is directed to a surgical apparatus, comprising an anvil jaw configured to form at least one surgical staple, a cartridge jaw configured to deploy one or more surgical staples against the anvil jaw, and a pressure distribution device attached to at least one of the anvil jaw and the cartridge jaw, wherein the pressure distribution device is configured to distribute a clamping pressure to a target tissue during a clamping and a stapling of the target tissue.Type: GrantFiled: December 13, 2012Date of Patent: December 20, 2016Assignee: Covidien LPInventors: Matthew J. Chowaniec, Xingrui Chen, Peter T. Collings, Luis Dussan, Paul D. Richard
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Patent number: 9023014Abstract: A hand-held electromechanical surgical device is provided and configured to selectively connect with a surgical accessory. The surgical device includes a device housing defining a connecting portion for selectively receiving a coupling assembly of the surgical accessory. The connecting portion includes an annular wall defining a cylindrical recess dimensioned to receive the coupling assembly of the surgical accessory; a collar slidably supported about the annular wall, wherein the collar is slidable between a first position and a second position; and at least one socket member interposed between the annular wall and the collar, wherein each socket member is slidably supported in the annular wall. Each socket member includes a first fixed state wherein each socket member projects into the cylindrical recess of the annular wall; and a second movable state wherein each socket member is free to not project into the cylindrical recess of the annular wall.Type: GrantFiled: July 9, 2012Date of Patent: May 5, 2015Assignee: Covidien LPInventors: Matthew J. Chowaniec, Xingrui Chen, Michael A. Zemlok
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Publication number: 20150076211Abstract: An electromechanical powered surgical instrument includes a handle assembly and a control assembly. The handle assembly is configured to engage an end effector to manipulate a tool assembly thereof. The control assembly is positioned on the candle assembly and includes a plurality of buttons. Each of the plurality of buttons is associated with a function of the end effector. Each of the plurality of buttons is also associated with a light source. The light source is configured to selectively backlight the associated button.Type: ApplicationFiled: August 8, 2014Publication date: March 19, 2015Inventors: Philip Joseph Irka, Matthew J. Chowaniec, Michael D. Ingmanson