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).
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Patent number: 10076239Abstract: 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: GrantFiled: April 15, 2016Date of Patent: September 18, 2018Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: David Keith Piech, Deepthi Jampala, Vihar C. Surti, Michelle D. Martinez, John Crowder Sigmon, Jr., David R. Wagner
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Patent number: 10045870Abstract: The present disclosure provides a support device for a gastrointestinal implant. The support device may include a lumen configured to extend through a submucosal tunnel and a mouth located at a proximal end of the lumen and in fluid communication with the lumen. The mouth may be configured to face proximally within a gastrointestinal tract to receive GI contents, and the mouth may be configured to direct the GI contents into the lumen. The support device may further include a support structure, where the lumen extends through the support structure, and where the support structure is configured to apply an outward radial force on an inner wall of the gastrointestinal tract. An artificial tunnel may extend distally from the support structure, may form at least a portion of the lumen, and may be configured to extend through the submucosal tunnel.Type: GrantFiled: August 2, 2016Date of Patent: August 14, 2018Assignee: Cook Medical Technologies LLCInventors: John Crowder Sigmon, Jr., Gregory James Hardy, Shaun D. Gittard, Tyler Evans McLawhorn, Michelle D. Martinez, Vihar C. Surti
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Publication number: 20180125573Abstract: 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: ApplicationFiled: December 18, 2017Publication date: May 10, 2018Applicant: Cook Medical Technologies LLCInventors: Tyler Evans McLawhorn, Vihar C. Surti, John Crowder Sigmon, JR., Michelle D. Martinez, Jillian Haac, Shaun D. Gittard, Richard B. Sisken, Richard W. Ducharme
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Patent number: 9888960Abstract: Bipolar electrosurgical devices may include a handle assembly configured to control movement of components of the electrosurgical device to perform an electrosurgical procedure and a power cord assembly configured to electrically connect the bipolar electrosurgical device with a power source. For bipolar sphincterotomes, an active portion of the handle assembly may include a first active member that contacts and slides across a second active member as the gripping portion moves about a handle stem component of the handle assembly. The power cord assembly may include a pair of return contacts that are shorted together when connected with the handle assembly, which in turn may deactivate an alarm output by the power source.Type: GrantFiled: November 6, 2014Date of Patent: February 13, 2018Assignee: Cook Medical Technologies LLCInventors: Tyler McLawhorn, John Crowder Sigmon, Jr.
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Patent number: 9844407Abstract: 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: GrantFiled: December 23, 2013Date of Patent: December 19, 2017Assignee: Cook Medical Technologies LLCInventors: Tyler Evans McLawhorn, Vihar C. Surti, John Crowder Sigmon, Jr., Michelle D. Martinez, Jillian Haac, Shaun D. Gittard, Richard B. Sisken, Richard W. Ducharme
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Patent number: 9717556Abstract: 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: GrantFiled: December 19, 2013Date of Patent: August 1, 2017Assignee: Cook Medical Technologies LLCInventor: John Crowder Sigmon, Jr.
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Patent number: 9681970Abstract: 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: GrantFiled: November 19, 2013Date of Patent: June 20, 2017Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Shaun D. Gittard, John Crowder Sigmon, Jr.
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Publication number: 20170135562Abstract: The exemplary embodiments illustrated provide the discovery of systems, methods, and apparatuses of endoscope stabilization devices for use with, for example, slim scopes, so as to provide, for example, a flexible outer structure capable of bending and holding a fixed position so as to provide, for example, support to make cannulation with a slim scope and target anatomy easier and more efficient.Type: ApplicationFiled: January 31, 2017Publication date: May 18, 2017Inventors: Vihar C. Surti, John Crowder Sigmon, JR.
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Patent number: 9585546Abstract: The exemplary embodiments illustrated provide the discovery of systems, methods, and apparatuses of endoscope stabilization devices for use with, for example, slim scopes, so as to provide, for example, a flexible outer structure capable of bending and holding a fixed position so as to provide, for example, support to make cannulation with a slim scope and target anatomy easier and more efficient.Type: GrantFiled: November 14, 2012Date of Patent: March 7, 2017Assignee: Cook Medical Technologies LLCInventors: Vihar C. Surti, John Crowder Sigmon, Jr.
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Publication number: 20170056652Abstract: Electrotherapeutic systems, devices, and methods are described. In one embodiment, a portion of a hepatic branch of a vagus nerve in a liver is stimulated with a lead implanted in the liver. In another embodiment, a stimulation member is delivered to a location in the gastrointestinal tract and implanted in a target area endoscopically and under ultrasound visualization. In another embodiment, a stimulation device is magnetically coupled to a stimulation member in order to electrically couple stimulation generation circuitry with a lead implanted in a target area.Type: ApplicationFiled: September 1, 2016Publication date: March 2, 2017Applicant: Cook Medical Technologies LLCInventors: Shaun Davis Gittard, John Crowder Sigmon, JR.
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Publication number: 20170035594Abstract: The present disclosure provides a support device for a gastrointestinal implant. The support device may include a lumen configured to extend through a submucosal tunnel and a mouth located at a proximal end of the lumen and in fluid communication with the lumen. The mouth may be configured to face proximally within a gastrointestinal tract to receive GI contents, and the mouth may be configured to direct the GI contents into the lumen. The support device may further include a support structure, where the lumen extends through the support structure, and where the support structure is configured to apply an outward radial force on an inner wall of the gastrointestinal tract. An artificial tunnel may extend distally from the support structure, may form at least a portion of the lumen, and may be configured to extend through the submucosal tunnel.Type: ApplicationFiled: August 2, 2016Publication date: February 9, 2017Applicant: Cook Medical Technologies LLCInventors: John Crowder Sigmon, JR., Greg James Hardy, Shaun D. Gittard, Tyler Evans McLawhorn, Michelle D. Martinez, Vihar C. Surti
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Publication number: 20160317218Abstract: An electrosurgical medical device may include an elongate needle that is delivered to a gastrointestinal tract of a patient and inserted through the gastrointestinal wall and into a cyst. Fluid within the cyst may be aspirated through a lumen of the needle. The cyst may then be filled with conductive fluid by delivering the conductive fluid through the needle lumen. Radio frequency energy may then be delivered to the needle and transferred to the cyst to ablate the cyst. A handle assembly of the electrosurgical medical device may communicate the cyst and conductive fluids to and from the needle lumen, as well as communicate radio frequency energy to the needle and a temperature signal generated by a thermocouple. An electrical cable assembly adapted to communicate both the radio frequency energy and the temperature signal may be removably connectable with the handle assembly.Type: ApplicationFiled: April 28, 2016Publication date: November 3, 2016Applicant: Cook Medical Technologies LLCInventors: John Crowder Sigmon, JR., Deepak Sathyanarayan, Kristin Murray
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Publication number: 20160227995Abstract: 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: ApplicationFiled: April 15, 2016Publication date: August 11, 2016Inventors: David Keith Piech, Deepthi Jampala, Vihar C. Surti, Michelle D. Martinez, John Crowder Sigmon, JR., David R. Wagner
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Patent number: 9408662Abstract: 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: GrantFiled: May 7, 2012Date of Patent: August 9, 2016Assignee: Cook Medical Technologies LLCInventor: John Crowder Sigmon, Jr.
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Patent number: 9339264Abstract: 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: GrantFiled: February 29, 2012Date of Patent: May 17, 2016Assignee: Cook Medical Technologies LLCInventors: David Keith Piech, Deepthi Jampala, Vihar C. Surti, Michelle D. Martinez, John Crowder Sigmon, Jr., David R. Wagner
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Patent number: 9314597Abstract: 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: GrantFiled: December 17, 2013Date of Patent: April 19, 2016Assignee: Cook Medical Technologies LLCInventor: John Crowder Sigmon, Jr.
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Publication number: 20160038647Abstract: A fluoropolymer medical device (e.g., a sphincterotome) has a thin-film coating deposited using a technique such as Atomic Layer Deposition. The thin-film coating may be a ceramic coating or a metal coating and a ceramic coating may further have an overlying ink coating such as a conducting ink or a radiopaque marker. The ceramic coating improves the application and adherence of the ink coating to the fluoropolymer device.Type: ApplicationFiled: August 4, 2015Publication date: February 11, 2016Inventors: Shaun Gittard, Michelle D. Martinez, John Crowder Sigmon, JR., Tyler Evans McLawhorn, Jillian Haac, Vihar Surti
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Patent number: 9119531Abstract: The exemplary embodiments illustrated provide the discovery of methods and apparatuses for periscope devices that couple to a viewing end of a visualization catheter or endoscope to extend the viewing range and accessory range of the endoscope or visualization catheter so as to provide for greater viewing and reach into multiple areas of the anatomy.Type: GrantFiled: October 24, 2012Date of Patent: September 1, 2015Assignee: Cook Medical Technologies LLCInventors: Vihar C. Surti, John Crowder Sigmon, Jr., Tyler Evans McLawhorn, Michelle D. Martinez, Richard W. Ducharme
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Publication number: 20150133924Abstract: Bipolar electrosurgical devices may include a handle assembly configured to control movement of components of the electrosurgical device to perform an electrosurgical procedure and a power cord assembly configured to electrically connect the bipolar electrosurgical device with a power source. For bipolar sphincterotomes, an active portion of the handle assembly may include a first active member that contacts and slides across a second active member as the gripping portion moves about a handle stem component of the handle assembly. The power cord assembly may include a pair of return contacts that are shorted together when connected with the handle assembly, which in turn may deactivate an alarm output by the power source.Type: ApplicationFiled: November 6, 2014Publication date: May 14, 2015Inventors: Tyler McLawhorn, John Crowder Sigmon, JR.
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Patent number: 8979891Abstract: 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: GrantFiled: December 15, 2011Date of Patent: March 17, 2015Assignee: Cook Medical Technologies LLCInventors: Tyler Evans McLawhorn, Michelle D. Martinez, Vihar C. Surti, John Crowder Sigmon, Jr.