Patents by Inventor Roger Lagerquist

Roger Lagerquist 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: 8403197
    Abstract: A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: March 26, 2013
    Assignee: Covidien LP
    Inventors: Claude A. Vidal, Alan K. Plyley, Russell J. Redmond, Roger Lagerquist
  • Publication number: 20120104072
    Abstract: A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 3, 2012
    Applicant: Tyco Healthcare Group LP
    Inventors: Claude A. Vidal, Alan K. Plyley, Russell J. Redmond, Roger Lagerquist
  • Patent number: 8066168
    Abstract: A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: November 29, 2011
    Assignee: Tyco Healthcare Group LP
    Inventors: Claude A. Vidal, Alan K. Plyley, Russell Heinrich J. Redmond, Roger Lagerquist
  • Publication number: 20100114137
    Abstract: A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.
    Type: Application
    Filed: January 11, 2010
    Publication date: May 6, 2010
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Claude A. Vidal, Alan K. Plyley, Russell J. Redmond, Roger Lagerquist
  • Patent number: 7658312
    Abstract: A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: February 9, 2010
    Inventors: Claude A. Vidal, Alan K. Plyley, Russell J. Redmond, Roger Lagerquist
  • Patent number: 6716232
    Abstract: A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: April 6, 2004
    Assignee: United States Surgical Corporation
    Inventors: Claude A. Vidal, Alan K. Plyley, Russell J. Redmond, Roger Lagerquist
  • Patent number: 5749893
    Abstract: A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least one of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: May 12, 1998
    Assignee: United States Surgical Corporation
    Inventors: Claude A. Vidal, Alan K. Plyley, Russell J. Redmond, Roger Lagerquist
  • Patent number: 5630539
    Abstract: A surgical stapler with an overload sensor and lockout is disclosed. The surgical stapler is particularly useful in laparoscopic surgical procedures.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: May 20, 1997
    Assignee: United States Surgical Corporation
    Inventors: Alan K. Plyley, Claude A. Vidal, Roger Lagerquist
  • Patent number: 5470007
    Abstract: A surgical stapler with an overload sensor and lockout is disclosed. The surgical stapler is particularly useful in laparoscopic surgical procedures.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: November 28, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alan K. Plyley, Claude A. Vidal, Roger Lagerquist