Patents by Inventor Craig GULLIFORD
Craig GULLIFORD 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: 11344360Abstract: An electrosurgical snare, e.g. suitably sized for insertion down the instrument channel of an endoscope, arranged to radiate microwave frequency energy (e.g. having a frequency greater than 1 GHz) from an elongate conductive element within an area encircled by a retractable loop. The elongate conductive element and retractable loop may be independently slidable relative to a snare base at a distal end of a sleeve to provide an appropriate device configuration. By controlling the shape of the emitted microwave field, the risk of collateral thermal damage can be reduced.Type: GrantFiled: August 29, 2019Date of Patent: May 31, 2022Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, Malcolm White, Craig Gulliford, Brian Saunders, Sandra May Bernadette Holmes
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Publication number: 20220022958Abstract: The disclosure relates to three enhancements for a surgical snare: an electrosurgical snare in which the loop of snare wire extends from an energy transfer surface which can act both as a physical reaction surface for mechanical cutting using the snare and as a region for emitting electromagnetic energy; a surgical snare having a snare wire having a first end connected to a movable boss that is slidably mounted on a coaxial cable; and a surgical snare having an end cap with a distally facing reaction surface and a pair of channels for guiding a snare wire, where the distally facing reaction surface is arranged to contact the retractable loop when fully retractedType: ApplicationFiled: October 8, 2021Publication date: January 27, 2022Inventors: Christopher Paul HANCOCK, Malcolm WHITE, Steven MORRIS, Craig GULLIFORD, Sandra May Bernadette SWAIN, Mohammed Sabih CHAUDHRY, Brian SAUNDERS
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Publication number: 20220000554Abstract: An interface joint for interconnecting an electrosurgical generator and an electrosurgical instrument, the interface joint comprising: a housing having: an inlet for receiving electromagnetic energy from the electrosurgical generator, and an outlet; a slidable trigger on the housing, the slidable trigger being attached to a push rod that extends out of the housing through the outlet; and a single cable assembly for connecting the outlet to the electrosurgical instrument, the single cable assembly comprising a flexible sleeve that conveys the push rod and a coaxial cable that is connected to the inlet. The interface joint may include a reinforcement element coupled to a first portion of the push rod so as to reinforce the first portion. Additionally or alternatively, the interface joint may include a slide limiting mechanism coupled to the push rod and configured to limit a maximum slide distance of an internal tube over the push rod.Type: ApplicationFiled: November 19, 2019Publication date: January 6, 2022Inventors: Christopher Paul HANCOCK, Leif GEOGHEGAN, Rohan MONICO, Steve MORRIS, Craig GULLIFORD, Huw HOPKINS, Louis TURNER, Robert PLUTA
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Patent number: 11172985Abstract: The disclosure relates to three enhancements for a surgical snare: an electrosurgical snare in which the loop of snare wire extends from an energy transfer surface which can act both as a physical reaction surface for mechanical cutting using the snare and as a region for emitting electromagnetic energy; a surgical snare having a snare wire having a first end connected to a movable boss that is slidably mounted on a coaxial cable; and a surgical snare having an end cap with a distally facing reaction surface and a pair of channels for guiding a snare wire, where the distally facing reaction surface is arranged to contact the retractable loop when fully retracted.Type: GrantFiled: September 6, 2016Date of Patent: November 16, 2021Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, Malcolm White, Steven Morris, Craig Gulliford, Sandra May Bernadette Swain, Mohammed Sabih Chaudhry, Brian Saunders
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Patent number: 10932843Abstract: An electrosurgical snare, e.g. suitably sized for insertion down the instrument channel of an endoscope, arranged to radiate microwave frequency energy (e.g. having a frequency greater than 1 GHz) from an elongate conductive element within an area encircled by a retractable loop. The elongate conductive element and retractable loop may be independently slidable relative to a snare base at a distal end of a sleeve to provide an appropriate device configuration. By controlling the shape of the emitted microwave field, the risk of collateral thermal damage can be reduced.Type: GrantFiled: June 26, 2014Date of Patent: March 2, 2021Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, Malcolm White, Craig Gulliford, Brian Saunders, Sandra May Bernadette Holmes
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Patent number: 10835270Abstract: Embodiments of the invention provide a surgical snare structure in which the material used for the snare and the deployment mechanism of the snare are configured to improve the cutting efficacy of the snare. In particular, the surgical snare structure of the invention may omit the kink or nib present in the loop of known surgical snares and/or may provide a reaction surface against which the cutting action of the snare is effective. The surgical snare of the invention may be a cold, i.e. mechanical-only effect, snare, or may be used in conjunction with radiofrequency (RF) and/or microwave energy to enhance a cutting or coagulation effect.Type: GrantFiled: October 16, 2015Date of Patent: November 17, 2020Assignee: CREO MEDICAL LIMITEDInventors: Brian Saunders, Sandra May Bernadette Holmes, Craig Gulliford, Steven Morris, Christopher Paul Hancock
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Publication number: 20200093536Abstract: An electrosurgical snare, e.g. suitably sized for insertion down the instrument channel of an endoscope, arranged to radiate microwave frequency energy (e.g. having a frequency greater than 1 GHz) from an elongate conductive element within an area encircled by a retractable loop. The elongate conductive element and retractable loop may be independently slidable relative to a snare base at a distal end of a sleeve to provide an appropriate device configuration. By controlling the shape of the emitted microwave field, the risk of collateral thermal damage can be reduced.Type: ApplicationFiled: August 29, 2019Publication date: March 26, 2020Inventors: Christopher Paul HANCOCK, Malcolm WHITE, Craig GULLIFORD, Brian SAUNDERS, Sandra May Bernadette HOLMES
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Publication number: 20180206916Abstract: The disclosure relates to three enhancements for a surgical snare: an electrosurgical snare in which the loop of snare wire extends from an energy transfer surface which can act both as a physical reaction surface for mechanical cutting using the snare and as a region for emitting electromagnetic energy; a surgical snare having a snare wire having a first end connected to a movable boss that is slidably mounted on a coaxial cable; and a surgical snare having an end cap with a distally facing reaction surface and a pair of channels for guiding a snare wire, where the distally facing reaction surface is arranged to contact the retractable loop when fully retracted.Type: ApplicationFiled: September 6, 2016Publication date: July 26, 2018Inventors: Christopher Paul HANCOCK, Malcolm WHITE, Steven MORRIS, Craig GULLIFORD, Sandra May Bernadette SWAIN, Mohammed Sabih CHAUDHRY, Brian SAUNDERS
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Publication number: 20170231647Abstract: Embodiments of the invention provide a surgical snare structure in which the material used for the snare and the deployment mechanism of the snare are configured to improve the cutting efficacy of the snare. In particular, the surgical snare structure of the invention may omit the kink or nib present in the loop of known surgical snares and/or may provide a reaction surface against which the cutting action of the snare is effective. The surgical snare of the invention may be a cold, i.e. mechanical-only effect, snare, or may be used in conjunction with radiofrequency (RF) and/or microwave energy to enhance a cutting or coagulation effect.Type: ApplicationFiled: October 16, 2015Publication date: August 17, 2017Inventors: Brian SAUNDERS, Sandra May Bernadette HOLMES, Craig GULLIFORD, Steven MORRIS, Christopher Paul Hancock
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Publication number: 20160166314Abstract: An electrosurgical snare, e.g. suitably sized for insertion down the instrument channel of an endoscope, arranged to radiate microwave frequency energy (e.g. having a frequency greater than 1 GHz) from an elongate conductive element within an area encircled by a retractable loop. The elongate conductive element and retractable loop may be independently slidable relative to a snare base at a distal end of a sleeve to provide an appropriate device configuration. By controlling the shape of the emitted microwave field, the risk of collateral thermal damage can be reduced.Type: ApplicationFiled: June 26, 2014Publication date: June 16, 2016Inventors: Christopher Paul HANCOCK, Malcolm WHITE, Craig GULLIFORD, Brian SAUNDERS, Sandra May Bernadette HOLMES