Patents by Inventor WALTER S. SHUNAULA

WALTER S. SHUNAULA 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).

  • Patent number: 11832850
    Abstract: A system for removal of a tissue specimen from an internal body cavity includes a cannula arrangement having an access cannula including a first elongated tubular member, a deployment cannula including a second elongated tubular member configured for insertion into the first lumen, a deployment plunger including a proximal base and a plurality of engagement arms extending distally from the proximal base, and an inner cannula including a third elongated tubular member. The system further includes a containment bag selectively deployable from the cannula arrangement. Distal advancement of the deployment cannula relative to the access cannula deploys a first portion of the containment bag from the cannula arrangement, and distal advancement of the deployment plunger relative to the deployment cannula and the access cannula deploys a second portion of the containment bag from the cannula arrangement.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: December 5, 2023
    Assignee: Covidien LP
    Inventors: Scott J. Prior, Nikolai D. Begg, Danial P. Ferreira, Paul D. DiCesare, Walter S. Shunaula
  • Patent number: 10980571
    Abstract: An occlusion device includes a body having a plurality of layers and defining a first diameter. Each layer of the plurality of layers is releasably coupled to a respective inwardly-adjacent layer. An outermost layer of the plurality of layers is removable from the respective inwardly-adjacent layer. Removal of the outermost layer reduces an outer diameter of the body from the first diameter to a second diameter that is less than the first diameter.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: April 20, 2021
    Assignee: Covidien LP
    Inventors: Scott J. Prior, Danial P. Ferreira, Paul C. DiCesare, Walter S. Shunaula
  • Publication number: 20200289159
    Abstract: A system for removal of a tissue specimen from an internal body cavity includes a cannula arrangement having an access cannula including a first elongated tubular member, a deployment cannula including a second elongated tubular member configured for insertion into the first lumen, a deployment plunger including a proximal base and a plurality of engagement arms extending distally from the proximal base, and an inner cannula including a third elongated tubular member. The system further includes a containment bag selectively deployable from the cannula arrangement. Distal advancement of the deployment cannula relative to the access cannula deploys a first portion of the containment bag from the cannula arrangement, and distal advancement of the deployment plunger relative to the deployment cannula and the access cannula deploys a second portion of the containment bag from the cannula arrangement.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Inventors: Scott J. Prior, Nikolai D. Begg, Danial P. Ferreira, Paul D. DiCesare, Walter S. Shunaula
  • Patent number: 10675058
    Abstract: A system for removal of a tissue specimen from an internal body cavity includes a cannula arrangement having an access cannula including a first elongated tubular member, a deployment cannula including a second elongated tubular member configured for insertion into the first lumen, a deployment plunger including a proximal base and a plurality of engagement arms extending distally from the proximal base, and an inner cannula including a third elongated tubular member. The system further includes a containment bag selectively deployable from the cannula arrangement. Distal advancement of the deployment cannula relative to the access cannula deploys a first portion of the containment bag from the cannula arrangement, and distal advancement of the deployment plunger relative to the deployment cannula and the access cannula deploys a second portion of the containment bag from the cannula arrangement.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 9, 2020
    Assignee: Covidien LP
    Inventors: Scott J. Prior, Nikolai D. Begg, Danial P. Ferreira, Paul C. Di Cesare, Walter S. Shunaula
  • Publication number: 20190053828
    Abstract: An occlusion device includes a body having a plurality of layers and defining a first diameter. Each layer of the plurality of layers is releasably coupled to a respective inwardly-adjacent layer. An outermost layer of the plurality of layers is removable from the respective inwardly-adjacent layer. Removal of the outermost layer reduces an outer diameter of the body from the first diameter to a second diameter that is less than the first diameter.
    Type: Application
    Filed: May 8, 2018
    Publication date: February 21, 2019
    Inventors: SCOTT J. PRIOR, DANIAL P. FERREIRA, PAUL C. DiCesare, WALTER S. SHUNAULA
  • Publication number: 20180199961
    Abstract: A system for removal of a tissue specimen from an internal body cavity includes a cannula arrangement having an access cannula including a first elongated tubular member, a deployment cannula including a second elongated tubular member configured for insertion into the first lumen, a deployment plunger including a proximal base and a plurality of engagement arms extending distally from the proximal base, and an inner cannula including a third elongated tubular member. The system further includes a containment bag selectively deployable from the cannula arrangement. Distal advancement of the deployment cannula relative to the access cannula deploys a first portion of the containment bag from the cannula arrangement, and distal advancement of the deployment plunger relative to the deployment cannula and the access cannula deploys a second portion of the containment bag from the cannula arrangement.
    Type: Application
    Filed: January 11, 2018
    Publication date: July 19, 2018
    Inventors: SCOTT J. PRIOR, NIKOLAI D. BEGG, DANIAL P. FERREIRA, PAUL C. DI CESARE, WALTER S. SHUNAULA