Patents by Inventor Jeffrey W. Baxter

Jeffrey W. Baxter 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).

  • Device and method for remote vessel ligation
    Patent number: 6348037
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vessel and side branch of interest, the surgeon extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: February 19, 2002
    Assignee: Origin Medsystems, Inc.
    Inventors: Albert K. Chin, Edwin J. Heavka, John P. Lunsford, Jeffrey W. Baxter
  • Cannula-based irrigation system and method
    Patent number: 6176825
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis skewed relative to the axis of the cannula. The dissection cradle may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when a surgeon locates a vessel and side branch of interest, the surgeon extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to a surgical tool.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: January 23, 2001
    Assignee: Origin Medsystems, Inc.
    Inventors: Albert K. Chin, John P. Lunsford, Tenny Chang, Jeffrey W. Baxter
  • Device and method for remote vessel ligation
    Patent number: 6162173
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vessel and side branch of interest, the surgeon extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: December 19, 2000
    Assignee: Origin Medsystems, Inc.
    Inventors: Albert K. Chin, Edwin J. Hlavka, John P. Lunsford, Jeffrey W. Baxter
  • Vessel isolating retractor cannula and method
    Patent number: 5993384
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis at an angle to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axis of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vein and side branch of interest, the surgeon extends the retractor to cradle the vein in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vein away from the axis of the cannula isolate the side branch for exposure to the surgical tool.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: November 30, 1999
    Assignee: Origin Medsystems, Inc.
    Inventors: John P. Lunsford, Charles Gresl, Jr., Albert K. Chin, John W. Davis, Tenny Chang, Jeffrey W. Baxter
  • Vessel isolating retractor cannula and method
    Patent number: 5895353
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis at an angle to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axis of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vein and side branch of interest, the surgeon extends the retractor to cradle the vein in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vein away from the axis of the cannula isolate the side branch for exposure to the surgical tool.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: April 20, 1999
    Assignee: Origin Medsystems, Inc.
    Inventors: John P. Lunsford, Charles Gresl, Jr., Albert K. Chin, John W. Davis, Tenny Chang, Jeffrey W. Baxter