Patents by Inventor Christopher P. Penna

Christopher P. Penna 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: 20230389927
    Abstract: Inserts and features to reduce or prevent spline crash in surgical staplers and/or to minimize damage resulting from spline crash in surgical staplers. An insert for a surgical stapler includes a body and spline covers. The body is configured to fit within a bore of a shell assembly and the spline covers extend inward from the body. Each of the spline covers are sized and dimensioned to cap a distal portion of splines of the shell assembly. A shell assembly for a surgical stapler includes shell splines that are disposed on an inner wall of an inner housing portion that defines a bore. The shell splines include a lead spline that has a leading end positioned distal of a leading end of each of the other shell splines.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 7, 2023
    Inventors: Joseph M. Guerrera, Charles R. Kollar, Anthony Sgroi, JR., Justin Williams, Steven H. Joyce, Christopher P. Penna, Joseph Eisinger
  • Patent number: 11730482
    Abstract: Inserts and features to reduce or prevent spline crash in surgical staplers and/or to minimize damage resulting from spline crash in surgical staplers. An insert for a surgical stapler includes a body and spline covers. The body is configured to fit within a bore of a shell assembly and the spline covers extend inward from the body. Each of the spline covers are sized and dimensioned to cap a distal portion of splines of the shell assembly. A shell assembly for a surgical stapler includes shell splines that are disposed on an inner wall of an inner housing portion that defines a bore. The shell splines include a lead spline that has a leading end positioned distal of a leading end of each of the other shell splines.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: August 22, 2023
    Assignee: Covidien LP
    Inventors: Joseph M. Guerrera, Charles R. Kollar, Anthony Sgroi, Jr., Justin Williams, Steven H. Joyce, Christopher P. Penna, Joseph Eisinger
  • Patent number: 11696762
    Abstract: 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: Grant
    Filed: April 3, 2020
    Date of Patent: July 11, 2023
    Assignee: COVIDIEN LP
    Inventors: Christopher P. Penna, Justin Williams, Paul A. Scirica, David Racenet
  • Publication number: 20220008076
    Abstract: Inserts and features to reduce or prevent spline crash in surgical staplers and/or to minimize damage resulting from spline crash in surgical staplers. An insert for a surgical stapler includes a body and spline covers. The body is configured to fit within a bore of a shell assembly and the spline covers extend inward from the body. Each of the spline covers are sized and dimensioned to cap a distal portion of splines of the shell assembly. A shell assembly for a surgical stapler includes shell splines that are disposed on an inner wall of an inner housing portion that defines a bore. The shell splines include a lead spline that has a leading end positioned distal of a leading end of each of the other shell splines.
    Type: Application
    Filed: December 2, 2019
    Publication date: January 13, 2022
    Inventors: Joseph M. Guerrera, Charles R. Kollar, Anthony Sgroi, Jr., Justin Williams, Steven H. Joyce, Christopher P. Penna, Joseph Eisinger
  • Publication number: 20200229821
    Abstract: 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: Application
    Filed: April 3, 2020
    Publication date: July 23, 2020
    Inventors: Christopher P. PENNA, Justin WILLIAMS, Paul A. SCIRICA, David RACENET
  • Publication number: 20190175171
    Abstract: A surgical staple includes first and second legs that are interconnected by a backspan. Each of the first and second legs defines a longitudinal leg axis and extends from the backspan along the leg axis to a tip. The tip is sharpened such that the tip is symmetrical about a longitudinal leg plane that includes the leg axis. In addition, a method of manufacturing a surgical staple includes sharpening a tip of a leg of the surgical staple such that the tip is symmetrical about a longitudinal leg axis that includes a longitudinal leg axis of the leg.
    Type: Application
    Filed: November 13, 2018
    Publication date: June 13, 2019
    Inventors: Christopher P. Penna, Charles R. Kollar, Patrick Mozdzierz, Steven H. Joyce, Joseph M. Guerrera