Patents by Inventor John C. Sigmon, JR.

John C. 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: 11253680
    Abstract: A wire lock assembly for an access port of an elongate medical tube includes a body having an exterior surface, an interior surface, and a central opening disposed therethrough, an attachment mechanism disposed through the exterior surface of the body, the attachment mechanism having an open end and a closed end, at least one notch arranged on the body and positioned proximate to the central opening and at least one seal supported within the interior surface of the body in communication with the central opening, the seal comprising a passageway therethrough, where the interior surface of the body defines a non-linear pathway for securing one or more medical devices.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: February 22, 2022
    Assignee: Cook Medical Technologies LLC
    Inventors: Bradley R. Doepker, Michelle D. Martinez, Tyler Evans McLawhorn, John C. Sigmon, Jr., Shaun Gittard, Michael Brecht, Maximiliano Soetermans
  • Publication number: 20220040006
    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: October 21, 2021
    Publication date: February 10, 2022
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Vihar C. Surti, Shaun D. Gittard, John C. Sigmon, Jr., Gregory Hardy
  • Publication number: 20220008060
    Abstract: Among other things, there is disclosed structure and methods for maintaining access to a location in the body while reducing or eliminating the potential for pulling an access device (e.g. a catheter) back through an opening. An introducer sheath includes a distal indented portion and a balloon, so that once placed in a desired location through tissue, the balloon can be inflated to anchor the sheath against retraction. In particular embodiments, structure and methods for accessing the pericardial cavity via the right atrial appendage are shown.
    Type: Application
    Filed: July 26, 2021
    Publication date: January 13, 2022
    Applicants: Muffin Incorporated, National Institutes of Health, an Agency of the Department of Health and Human Services
    Inventors: Shaun Davis Gittard, Gregory James Hardy, John C. Sigmon, JR., Jeremy T. Newkirk, William J. Havel, Neal E. Fearnot, Toby Rogers, Kanishka Ratnayaka, Robert L. Lederman
  • Patent number: 11213392
    Abstract: Among other things, there are disclosed embodiments of belts or bands that can be used in treatments for tricuspid valve regurgitation. In some embodiments, such belts may be heat-set in a particular configuration to effectively decrease tricuspid annulus when deployed around the atrioventricular groove. Embodiments include one or more tensioning sutures for applying cinching or tightening to belts when deployed, and structure for effectively distributing force during such tightening.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 4, 2022
    Assignee: Muffin Incorporated
    Inventors: Shaun Davis Gittard, John C. Sigmon, Jr., Gregory James Hardy, Jeremy T. Newkirk, Neal E. Fearnot, William J. Havel, Rita Hadley, Yun Zhou
  • Publication number: 20210369090
    Abstract: A scope system is provided including an elongate tube with a distal portion and a lumen extending therethrough. The scope system also includes at least one accessory channel including a tubular structure with an accessory lumen extending therethrough, the at least one accessory channel movably disposed at least partially within the lumen of the elongate tube. The at least one accessory channel includes a distal section and a forward-viewing configuration and a side-viewing configuration. In the forward-viewing configuration, the distal section of the at least one accessory channel is substantially parallel to the distal portion of the elongate tube and in the side-viewing configuration, the distal section of the at least one accessory channel is arced at a radius greater than a radius of the distal portion of the elongate tube.
    Type: Application
    Filed: August 12, 2021
    Publication date: December 2, 2021
    Inventors: Vihar C. Surti, John C. Sigmon, JR., William S. Gibbons, JR.
  • Publication number: 20210361149
    Abstract: Disclosed herein is an endoscope system and a handle for a medical device that allows for rotation of the device when a locking member is disengaged by an operator, but does not allow for rotation when the locking member is engaged. Such a handle allows for an operator to maintain the position of an endoscope even when the operator removes his or her hand from the controls of the scope.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 25, 2021
    Applicant: Cook Medical Technologies LLC
    Inventors: John C. Sigmon, JR., Michael J. Brecht, Christopher A. Carruthers, Marc Spencer
  • Publication number: 20210346568
    Abstract: The present embodiments provide systems and medical formulations suitable for delivering therapeutic powders to a target site. In one embodiment, the system comprises a delivery device, a first powder being formed of particles of a first material, and a second powder being formed of particles of a second material, wherein the second material is different than the first material. At least some of the particles of the first powder and the second powder are bound together to form bonded particles. The bonded particles are simultaneously delivered to the target site by the delivery device. In one embodiment, a medical formulation may comprise carbomer present in a range between about 60-80% by weight of the formulation, bentonite present in a range of between about 5-15% by weight of the formulation, and calcium carbonate present in a range of between about 10-30% by weight of the formulation.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Applicant: Cook Medical Technologies LLC
    Inventors: Shaun D. Gittard, John C. Sigmon, Jr., Christopher A. Carruthers
  • Patent number: 11122962
    Abstract: A scope system is provided including an elongate tube with a distal portion and a lumen extending therethrough. The scope system also includes at least one accessory channel including a tubular structure with an accessory lumen extending therethrough, the at least one accessory channel movably disposed at least partially within the lumen of the elongate tube. The at least one accessory channel includes a distal section and a forward-viewing configuration and a side-viewing configuration. In the forward-viewing configuration, the distal section of the at least one accessory channel is substantially parallel to the distal portion of the elongate tube and in the side-viewing configuration, the distal section of the at least one accessory channel is arced at a radius greater than a radius of the distal portion of the elongate tube.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: September 21, 2021
    Assignee: Cook Medical Technologies LLC
    Inventors: Vihar C. Surti, John C. Sigmon, Jr., William S. Gibbons, Jr.
  • Patent number: 11071535
    Abstract: Among other things, there is disclosed structure and methods for maintaining access to a location in the body while reducing or eliminating the potential for pulling an access device (e.g. a catheter) back through an opening. An introducer sheath includes a distal indented portion and a balloon, so that once placed in a desired location through tissue, the balloon can be inflated to anchor the sheath against retraction. In particular embodiments, structure and methods for accessing the pericardial cavity via the right atrial appendage are shown.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: July 27, 2021
    Assignees: Muffin Incorporated, National Institutes of Health, DHHS
    Inventors: Shaun Davis Gittard, Gregory James Hardy, John C. Sigmon, Jr., Jeremy T. Newkirk, William J. Havel, Neal E. Fearnot, Toby Rogers, Kanishka Ratnayaka, Robert L. Lederman
  • Publication number: 20210106717
    Abstract: The present embodiments provide systems and medical formulations suitable for delivering therapeutic powders to a target site. In one embodiment, the system comprises a delivery device, a first powder being formed of particles of a first material, and a second powder being formed of particles of a second material, wherein the second material is different than the first material. At least some of the particles of the first powder and the second powder are bound together to form bonded particles. The bonded particles are simultaneously delivered to the target site by the delivery device. In one embodiment, a medical formulation may comprise carbomer present in a range between about 60-80% by weight of the formulation, bentonite present in a range of between about 5-15% by weight of the formulation, and calcium carbonate present in a range of between about 10-30% by weight of the formulation.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 15, 2021
    Applicant: Cook Medical Technologies LLC
    Inventors: Shaun D. Gittard, John C. Sigmon, JR., Christopher A. Carruthers
  • Publication number: 20210093452
    Abstract: Among other things, there are disclosed embodiments of belts or bands that can be used in treatments for tricuspid valve regurgitation. In some embodiments, such belts may be heat-set in a particular configuration to effectively decrease tricuspid annulus when deployed around the atrioventricular groove. Embodiments include one or more tensioning sutures for applying cinching or tightening to belts when deployed, and structure for effectively distributing force during such tightening. Embodiments of tensioning members, protective members, and devices and methods for open-surgical placement (e.g. around a heart for annuloplasty) are also disclosed.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 1, 2021
    Applicant: Muffin Incorporated
    Inventors: William J. Havel, Neal E. Fearnot, Jeremy T. Newkirk, Shaun Davis Gittard, John C. Sigmon, JR., Gregory James Hardy, Rita Hadley
  • Publication number: 20210007766
    Abstract: A medical device for facilitating a minimally invasive surgical procedure may include a housing and an arm. The housing may be configured for engagement around an outer circumferential surface of an endoscope and may include a first cavity. The arm may include at least one cutting surface and may be movably received within the first cavity. The arm may be configured to perform a first predetermined movement along at least a first plane at a predetermined frequency.
    Type: Application
    Filed: July 7, 2020
    Publication date: January 14, 2021
    Applicant: Cook Medical Technologies LLC
    Inventors: JOHN C. SIGMON, JR., Shaun D. Gittard, Christopher A. Carruthers, Liam Breen, Vihar C. Surti
  • Publication number: 20200178963
    Abstract: There are shown and described embodiments of a closure device for closing holes in tissue, for example in the right atrial appendage. The closure device in particular embodiments includes first and second mesh closure members and a tether or stem connecting them. Embodiments of a delivery device for the closure device are also described.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 11, 2020
    Applicant: Muffin Incorporated
    Inventors: Gregory James Hardy, Shaun Davis Gittard, John C. Sigmon, JR., William J. Havel, Jeremy T. Newkirk, Neal E. Fearnot, Rita Hadley
  • Publication number: 20200163534
    Abstract: A scope system is provided including an elongate tube with a distal portion and a lumen extending therethrough. The scope system also includes at least one accessory channel including a tubular structure with an accessory lumen extending therethrough, the at least one accessory channel movably disposed at least partially within the lumen of the elongate tube. The at least one accessory channel includes a distal section and a forward-viewing configuration and a side-viewing configuration. In the forward-viewing configuration, the distal section of the at least one accessory channel is substantially parallel to the distal portion of the elongate tube and in the side-viewing configuration, the distal section of the at least one accessory channel is arced at a radius greater than a radius of the distal portion of the elongate tube.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 28, 2020
    Inventors: Vihar C. Surti, John C. Sigmon, JR., William S. Gibbons, JR.
  • Publication number: 20200086079
    Abstract: Methods of modifying the luminal profile of a body vessel are described. An example method comprises advancing a cannula out of the distal end of a catheter disposed within the lumen of a body vessel of an animal and toward a target site on the wall of the body vessel; passing contrast dye through the cannula toward the target site; simultaneously continuing the advancing and passing until the distal end of the cannula punctures the inner layer of the wall of the body vessel at the target site; and passing a bulking agent through the cannula and into a space between connective tissue layers surrounding the vessel wall at the target site. Medical devices, medical device assemblies, and kits are also described.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: John C. Sigmon, JR., Vihar Surti
  • Publication number: 20200078157
    Abstract: The present embodiments provide an expandable mesh comprising a first coupling element, a second coupling element, and an intermediate portion disposed between the first coupling element and the second coupling element. Proximal retraction of the first coupling element relative to the second coupling element causes the intermediate portion to flare out to an enlarged width. In one embodiment, the first coupling element comprises a first tube and the second coupling element comprises a second tube.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 12, 2020
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Tyler E. McLawhorn, John C. Sigmon, JR.
  • Patent number: 10582835
    Abstract: A scope system is provided including an elongate tube with a distal portion and a lumen extending therethrough. The scope system also includes at least one accessory channel including a tubular structure with an accessory lumen extending therethrough, the at least one accessory channel movably disposed at least partially within the lumen of the elongate tube. The at least one accessory channel includes a distal section and a forward-viewing configuration and a side-viewing configuration. In the forward-viewing configuration, the distal section of the at least one accessory channel is substantially parallel to the distal portion of the elongate tube and in the side-viewing configuration, the distal section of the at least one accessory channel is arced at a radius greater than a radius of the distal portion of the elongate tube.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: March 10, 2020
    Assignee: Cook Medical Technologies LLC
    Inventors: Vihar C. Surti, John C. Sigmon, Jr., William S. Gibbons, Jr.
  • Patent number: 10568628
    Abstract: There are shown and described embodiments of a closure device for closing holes in tissue, for example in the right atrial appendage. The closure device in particular embodiments includes first and second mesh closure members and a tether or stem connecting them. Embodiments of a delivery device for the closure device are also described.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: February 25, 2020
    Assignee: Muffin Incorporated
    Inventors: Gregory James Hardy, Shaun Davis Gittard, John C. Sigmon, Jr., William J. Havel, Jeremy T. Newkirk, Neal E. Fearnot, Rita Hadley
  • Patent number: 10512751
    Abstract: Methods of modifying the luminal profile of a body vessel are described. An example method comprises advancing a cannula out of the distal end of a catheter disposed within the lumen of a body vessel of an animal and toward a target site on the wall of the body vessel; passing contrast dye through the cannula toward the target site; simultaneously continuing the advancing and passing until the distal end of the cannula punctures the inner layer of the wall of the body vessel at the target site; and passing a bulking agent through the cannula and into a space between connective tissue layers surrounding the vessel wall at the target site. Medical devices, medical device assemblies, and kits are also described.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: December 24, 2019
    Assignee: Cook Medical Technologies LLC
    Inventors: John C. Sigmon, Jr., Vihar Surti
  • Patent number: 10500029
    Abstract: The present embodiments provide an expandable mesh comprising a first coupling element, a second coupling element, and an intermediate portion disposed between the first coupling element and the second coupling element. Proximal retraction of the first coupling element relative to the second coupling element causes the intermediate portion to flare out to an enlarged width. In one embodiment, the first coupling element comprises a first tube and the second coupling element comprises a second tube.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: December 10, 2019
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Tyler E. McLawhorn, John C. Sigmon, Jr.