Patents by Inventor Richard Stevenson

Richard Stevenson 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).

  • Publication number: 20240141255
    Abstract: A fabric spray composition comprising an ingredient comprising at least one ethoxylate unit and at least one carbon derived from carbon capture.
    Type: Application
    Filed: April 14, 2022
    Publication date: May 2, 2024
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Karl BURGESS, Alastai Richard SANDERSON, Iain Murdoch STEVENSON
  • Publication number: 20220110631
    Abstract: A staple cartridge for use with a surgical stapling apparatus includes a cartridge body including a tissue contacting surface defining a plurality of staple retaining slots, a staple disposed within each staple retaining slot of the cartridge body, and a substantially circular buttress. The buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion. At least one stiffened region joins the buttress to the tissue contacting surface of the cartridge body. The inner portion, the middle portion, the outer portion, and the at least one stiffened region are all formed from a common material.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 14, 2022
    Inventors: Sally Carter, Gerald Hodgkinson, Richard Stevenson, Arthur Hislop, Ernest Aranyi, Jennifer (Whiffen) Diederich
  • Patent number: 11229434
    Abstract: A staple cartridge for use with a surgical stapling apparatus includes a cartridge body including a tissue contacting surface defining a plurality of staple retaining slots, a staple disposed within each staple retaining slot of the cartridge body, and a substantially circular buttress. The buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion. At least one stiffened region joins the buttress to the tissue contacting surface of the cartridge body. The inner portion, the middle portion, the outer portion, and the at least one stiffened region are all formed from a common material.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: January 25, 2022
    Assignee: COVIDIEN LP
    Inventors: Sally Carter, Gerald Hodgkinson, Richard Stevenson, Arthur Hislop, Ernest Aranyi, Jennifer (Whiffen) Diederich
  • Patent number: 11026688
    Abstract: 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: Grant
    Filed: June 11, 2019
    Date of Patent: June 8, 2021
    Assignee: COVIDIEN LP
    Inventors: Richard Stevenson, Paul Scirica
  • Patent number: 10835216
    Abstract: A bimodal spinneret system including the bimodal spinneret and method for making a surgical buttress having improved characteristics are disclosed. The bimodal spinneret includes at least a distribution of hole diameters to create fibers with a more heterogeneous shear history and die swell. The system and method of using the bimodal spinneret creates a melt blown non-woven fiber mat that is cut into a surgical buttress having unique fabric properties such as differentiated load deflection behavior, flexural stiffness, polymer fiber alignment, fiber crystallinity and subsequent strength retention during in vitro degradation not attainable with unimodal spinneret hole diameters.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: November 17, 2020
    Assignee: COVIDIEN LP
    Inventors: Richard Stevenson, Seth Gleiman
  • Patent number: 10786255
    Abstract: An apparatus for joining two hollow organ sections includes a staple cartridge component, an anvil component, a knife member, a buttress mount and a buttress member. The staple cartridge component includes a plurality of surgical staples in an annular array. The anvil component is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp tissue. The knife member is movable relative to the staple cartridge component. The buttress mount is concentrically disposed at least partially within the lumen of the knife member. The buttress mount includes a plurality of spokes radially extending outward and a plurality of legs detachably secured with an inner wall of the knife member. The buttress member is secured with the plurality of spokes of the buttress mount. The buttress member is concentrically aligned with the plurality of surgical staples.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: September 29, 2020
    Assignee: Covidien LP
    Inventors: Gerald Hodgkinson, Paul Scirica, Sally Carter, Richard Stevenson, Arthur Hislop, Thomas Casasanta
  • Patent number: 10687818
    Abstract: A surgical stapling instrument includes a staple cartridge assembly having a plurality of rows of staple receiving slots and an anvil assembly having a plurality of rows of staple forming recesses. The staple cartridge assembly, the anvil assembly, or both have one or more attachment members overmolded thereon. A staple line reinforcement material is attached to the attachment members.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: June 23, 2020
    Assignee: COVIDIEN LP
    Inventors: Gerald N. Hodgkinson, Richard Stevenson, Jennifer (Whiffen) Diederich
  • Publication number: 20190290275
    Abstract: A staple cartridge for use with a surgical stapling apparatus includes a cartridge body including a tissue contacting surface defining a plurality of staple retaining slots, a staple disposed within each staple retaining slot of the cartridge body, and a substantially circular buttress. The buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion. At least one stiffened region joins the buttress to the tissue contacting surface of the cartridge body. The inner portion, the middle portion, the outer portion, and the at least one stiffened region are all formed from a common material.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Inventors: Sally Carter, Gerald Hodgkinson, Richard Stevenson, Arthur Hislop, Ernest Aranyi, Jennifer (Whiffen) Diederich
  • Publication number: 20190290280
    Abstract: 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: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Inventors: Richard Stevenson, Paul Scirica
  • Patent number: 10357249
    Abstract: A staple cartridge for use with a surgical stapling apparatus includes a cartridge body including a tissue contacting surface defining a plurality of staple retaining slots, a staple disposed within each staple retaining slot of the cartridge body, and a substantially circular buttress. The buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion. At least one stiffened region joins the buttress to the tissue contacting surface of the cartridge body. The inner portion, the middle portion, the outer portion, and the at least one stiffened region are all formed from a common material.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: July 23, 2019
    Assignee: Covidien LP
    Inventors: Sally Carter, Gerald Hodgkinson, Richard Stevenson, Arthur Hislop, Ernest Aranyi, Jennifer (Whiffen) Diederich
  • Patent number: 10349942
    Abstract: 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: Grant
    Filed: July 5, 2016
    Date of Patent: July 16, 2019
    Assignee: Covidien LP
    Inventors: Richard Stevenson, Paul Scirica
  • Patent number: 10321908
    Abstract: An apparatus for joining two hollow organ sections with an annular array of surgical staples includes a staple cartridge component, an anvil component, a buttress component and a fastening member. The staple cartridge component includes a plurality of surgical staples arranged in an annular array. The anvil component is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp the organ sections between the staple cartridge and anvil components. The buttress component is configured and dimensioned to be positioned on a distal surface of the staple cartridge component. In particular, the buttress component includes a buttress member and a plurality of circumferentially arranged tabs extending proximally from the buttress member. The fastening member is configured and dimensioned to engage the plurality of circumferentially arranged tabs to securely position the buttress component on the staple cartridge component.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: June 18, 2019
    Assignee: Covidien LP
    Inventors: Sally Carter, Richard Stevenson
  • Publication number: 20180168654
    Abstract: A surgical stapling instrument includes a staple cartridge assembly having a plurality of rows of staple receiving slots and an anvil assembly having a plurality of rows of staple forming recesses. The staple cartridge assembly, the anvil assembly, or both have one or more attachment members overmolded thereon. A staple line reinforcement material is attached to the attachment members.
    Type: Application
    Filed: February 14, 2018
    Publication date: June 21, 2018
    Inventors: Gerald N. Hodgkinson, Richard Stevenson, Jennifer (Whiffen) Diederich
  • Patent number: 9775617
    Abstract: A surgical stapling device for joining tissue portions includes a handle assembly, and a tubular body portion having a staple cartridge assembly containing a plurality of surgical staples in an annular array. The surgical stapling device includes an anvil assembly having a shaft for removably connecting the anvil assembly to the tubular body portion. The anvil assembly and the tubular body portion are juxtaposed with respect to one another along the shaft and are arranged so as to be approximated with respect to one another. The surgical stapling device includes a buttress material supported by the tubular body portion and disposed between the anvil assembly and the staple cartridge assembly. The surgical stapling device includes a suture material that is adapted for engagement with the tubular body portion and the buttress material to secure the buttress material to the tubular body portion.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: October 3, 2017
    Assignee: Covidien LP
    Inventors: Sally L. Carter, Richard Stevenson
  • Publication number: 20160367257
    Abstract: 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: Application
    Filed: July 5, 2016
    Publication date: December 22, 2016
    Inventors: Richard Stevenson, Paul Scirica
  • Publication number: 20160270793
    Abstract: A staple cartridge for use with a surgical stapling apparatus includes a cartridge body including a tissue contacting surface defining a plurality of staple retaining slots, a staple disposed within each staple retaining slot of the cartridge body, and a substantially circular buttress. The buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion. At least one stiffened region joins the buttress to the tissue contacting surface of the cartridge body. The inner portion, the middle portion, the outer portion, and the at least one stiffened region are all formed from a common material.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 22, 2016
    Inventors: Sally Carter, Gerald Hodgkinson, Richard Stevenson, Arthur Hislop, Ernest Aranyi, Jennifer (Whiffen) Diederich
  • Publication number: 20160183929
    Abstract: A bimodal spinneret system including the bimodal spinneret and method for making a surgical buttress having improved characteristics are disclosed. The bimodal spinneret includes at least a distribution of hole diameters to create fibers with a more heterogeneous shear history and die swell. The system and method of using the bimodal spinneret creates a melt blown non-woven fiber mat that is cut into a surgical buttress having unique fabric properties such as differentiated load deflection behavior, flexural stiffness, polymer fiber alignment, fiber crystallinity and subsequent strength retention during in vitro degradation not attainable with unimodal spinneret hole diameters.
    Type: Application
    Filed: December 24, 2014
    Publication date: June 30, 2016
    Inventors: RICHARD STEVENSON, SETH GLEIMAN
  • Publication number: 20160106430
    Abstract: An apparatus for joining two hollow organ sections with an annular array of surgical staples includes a staple cartridge component, an anvil component, a buttress component and a fastening member. The staple cartridge component includes a plurality of surgical staples arranged in an annular array. The anvil component is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp the organ sections between the staple cartridge and anvil components. The buttress component is configured and dimensioned to be positioned on a distal surface of the staple cartridge component. In particular, the buttress component includes a buttress member and a plurality of circumferentially arranged tabs extending proximally from the buttress member. The fastening member is configured and dimensioned to engage the plurality of circumferentially arranged tabs to securely position the buttress component on the staple cartridge component.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 21, 2016
    Inventors: Sally Carter, Richard Stevenson
  • Patent number: 9277922
    Abstract: An apparatus for joining two hollow organ sections with an annular array of surgical staples includes a staple cartridge component, an anvil component, a buttress component and a fastening member. The staple cartridge component includes a plurality of surgical staples arranged in an annular array. The anvil component is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp the organ sections between the staple cartridge and anvil components. The buttress components are configured and dimensioned to be positioned on a distal surface of the staple cartridge component and the proximal surface of the anvil component. In particular, the buttress component includes a buttress member and a plurality of circumferentially arranged tabs extending proximally from the buttress member.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: March 8, 2016
    Assignee: Covidien LP
    Inventors: Sally Carter, Richard Stevenson
  • Publication number: 20150327864
    Abstract: An apparatus for joining two hollow organ sections includes a staple cartridge component, an anvil component, a knife member, a buttress mount and a buttress member. The staple cartridge component includes a plurality of surgical staples in an annular array. The anvil component is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp tissue. The knife member is movable relative to the staple cartridge component. The buttress mount is concentrically disposed at least partially within the lumen of the knife member. The buttress mount includes a plurality of spokes radially extending outward and a plurality of legs detachably secured with an inner wall of the knife member. The buttress member is secured with the plurality of spokes of the buttress mount. The buttress member is concentrically aligned with the plurality of surgical staples.
    Type: Application
    Filed: July 24, 2015
    Publication date: November 19, 2015
    Inventors: Gerald Hodgkinson, Paul Scirica, Sally Carter, Richard Stevenson, Arthur Hislop, Thomas Casasanta