Patents by Inventor John Crowder Sigmon, JR.

John Crowder Sigmon, JR. 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: 8858588
    Abstract: Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, first and second links pivotally attached to the jaws, and a driver. The housing, first and second jaws, and first and second links form a linkage mechanism that allows the jaws to engage tissue and be left in vivo.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: October 14, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: John Crowder Sigmon, Jr., Michelle D. Martinez, Vihar C. Surti
  • Publication number: 20140271491
    Abstract: The present invention relates to a long-lasting medical product for protecting or treating a lesion in the gastrointestinal tract. The medical product includes a protective covering, wherein the medical product upon application at and about the site of the lesion adheres to the gastrointestinal tissue and is capable of remaining at and about the site of the lesion for a time sufficient to allow the lesion to heal or be treated.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Shaun D. Gittard, John Crowder Sigmon, JR., Vihar C. Surti
  • Publication number: 20140259544
    Abstract: A catheter management clip is provided which provides at least one curved clip on the handle of a device requiring a catheter. The placement of the curved clip on the handle allows the looping of the catheter from either the top opening or bottom opening of the clip and therefore the catheter can be used by both left and right handed users. In one preferred embodiment, a clip is located on either side of the handle and oriented so that the two clips are pointed in the same direction. In another embodiment, two clips are located on the same side of the handle and are connected so that the openings of the two clips are pointing in opposite directions.
    Type: Application
    Filed: December 17, 2013
    Publication date: September 18, 2014
    Applicant: Cook Medical Technologies LLC
    Inventor: John Crowder Sigmon, JR.
  • Publication number: 20140188109
    Abstract: A bipolar sphincterotome may include an elongate tubular member, a cutting wire, and a return path. The return path may include a conductive ink portion disposed on an outer surface at a distal portion of the tubular member. The return path may also include a return wire disposed within the tubular member that is electrically coupled to the conductive ink portion. In some example embodiments, the return wire may be disposed within a lumen configured to have two or more functions, one of which being to house the return wire. Additionally, in some example embodiments, the conductive ink portion may be circumferentially disposed on the outer surface to provide visual access to a wire guide lumen. Also, for some example embodiments, the bipolar sphincterotome may include two electrically isolated return paths.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Applicant: Cook Medical Technologies LLC
    Inventors: Tyler Evans McLawhorn, Vihar C. Surti, John Crowder Sigmon, JR., Michelle D. Martinez, Jillian Haac, Shaun D. Gittard, Richard B. Sisken
  • Publication number: 20140180284
    Abstract: An endoscopic needle knife may include a collet coupled to a distal end of a tubular member of the needle knife. A cutting wire may be disposed within a cutting wire lumen of the tubular member and a central lumen of the collet. An inner surface of the collet body may create a frictional force between the cutting wire and the inner surface so that the cutting wire is resistant to longitudinal movement relative to the tubular member caused by external forces. The frictional force may also be less than a longitudinal force exerted on the cutting wire by a handle assembly or other control mechanism that is used to longitudinally move the cutting wire within the tubular member and the collet.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: Cook Medical Technologies LLC
    Inventor: John Crowder Sigmon, JR.
  • Publication number: 20140142719
    Abstract: A device and method for deploying an endoluminal sleeve is disclosed. The endoluminal sleeve has a proximal end that is rolled with a thread. The distal end is disposed about a balloon and can be expanded to contact the lumen wall. An adhesive holds the sleeve in place and the endoluminal sleeve is unrolled. The balloon is deflated and moved to a second location. The balloon is then inflated again expanding the endoluminal sleeve proximate the second location.
    Type: Application
    Filed: November 19, 2013
    Publication date: May 22, 2014
    Applicant: Cook Medical Technologies LLC
    Inventors: Shaun D. Gittard, John Crowder Sigmon, Jr.
  • Publication number: 20130296855
    Abstract: A sphincterotome includes a plurality of tines that are longitudinally disposed at a distal end of the sphincterotome. One of the tines is configured as a cutting wire of the sphincterotome and is electrically coupled to an electrical source. The other tines are configured as stabilizing wires to stabilize the cutting wire in a cutting position. In addition, the other tines are electrically insulated from the cutting wire and the electrical source. The plurality of tines are movable between an expanded and a non-expanded configuration. Electrocautery is performed when the tines are in the expanded configuration.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 7, 2013
    Applicant: Wilson-Cook Medical Inc.
    Inventor: John Crowder Sigmon, JR.
  • Publication number: 20120209070
    Abstract: A medical system generally comprises a camera head, a beam, and a guide sheath. The camera head is connected to the beam which is bendable in a first direction and resists bending in a second direction opposite the first direction. The guide sheath slidably receives the beam, the beam extending through a distal end of the guide sheath such that the camera head projects from the distal end of the guide sheath. The guide sheath includes first and second sheath portions, and in an operative configuration the first sheath portion is angled relative to the second sheath portion to define a first bend. The beam is oriented relative to the guide sheath such that, as the beam is slid relative to guide sheath, the beam bends in the first direction through the first bend, and a projecting portion of the beam resists bending in the second direction.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 16, 2012
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: David Keith Piech, Deepthi Jampala, Vihar C. Surti, Michelle D. Martinez, John Crowder Sigmon, JR.
  • Publication number: 20120165863
    Abstract: Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, first and second links attached to both the jaws and the housing, and a driver. The housing, first and second jaws, and first and second links form a linkage mechanism that allows the jaws to engage tissue and be left in vivo.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 28, 2012
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Tyler Evans McLawhorn, Michelle D. Martinez, Vihar C. Surti, John Crowder Sigmon, JR.
  • Publication number: 20120089176
    Abstract: Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, first and second links pivotally attached to the jaws, and a driver. The housing, first and second jaws, and first and second links form a linkage mechanism that allows the jaws to engage tissue and be left in vivo.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 12, 2012
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: John Crowder Sigmon, JR., Michelle D. Martinez, Vihar C. Surti
  • Publication number: 20120016409
    Abstract: The present embodiments provide a system for facilitating closure of a bodily opening. In one embodiment, the system comprises an anchor having a deployed state dimensioned for engaging tissue surrounding the opening, a first tether coupled to the anchor and extending proximally therefrom, and a graft member comprising a first bore disposed therein. The anchor may comprise a width that is larger than a width of the opening such that the anchor is disposed securely within or distal to the opening. The first tether is dimensioned to be disposed through the first bore in the graft member, such that the graft member is advanced distally over the first tether. The graft member then may be secured to the anchor. Various anchor designs are provided along with a supporting framework that may be coupled to the graft member.
    Type: Application
    Filed: April 28, 2011
    Publication date: January 19, 2012
    Inventors: Danny Azriel Sherwinter, John Crowder Sigmon, JR., Vihar C. Surti
  • Publication number: 20120010470
    Abstract: Devices and methods are provided for accessing a bodily opening that, among other things, are safe, reliable and repeatable. One embodiment of a device for anchoring to tissue includes an elongated tube and a magnet. The elongated tube has a proximal end opposite a distal end, and defines a central axis. The magnet is attached to the distal end of the elongated tube and has a magnetic field attractive to the magnetic material in the tissue. The magnet has an annular shape defining an aperture through which the elongated tube extends.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 12, 2012
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Richard W. Ducharme, John Crowder Sigmon, JR., Andres F. Aguirre, Tyler Evans McLawhorn, Michelle D. Martinez, Vihar C. Surti