Patents by Inventor Simon Meadowcroft
Simon Meadowcroft 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: 11950843Abstract: An electrosurgical apparatus comprising an electrosurgical forceps instrument that combines la robust jaw opening mechanism with an a microwave energy delivery mechanism. The instrument includes a rigid bracket mounted at a distal end of a flexible shaft, wherein a pair of jaws are pivotably mounted on the rigid bracket. The instrument includes an energy delivery structure comprising a flexible dielectric substrate having a first electrode and an second electrode formed on one of the pair of jaws, wherein the first electrode and the second electrode are arranged to emit microwave energy. The electrosurgical apparatus may also comprise a handpiece that combines rotation control of an electrosurgical instrument with both power delivery and end effector actuation (e.g. jaw closure, blade retraction or the like).Type: GrantFiled: October 12, 2018Date of Patent: April 9, 2024Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, George Christian Ullrich, David Edward Webb, Louis Turner, Simon Meadowcroft, Jessi Johnson, Miriam Taimisto
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Patent number: 11806074Abstract: An electrosurgical vessel sealing device that can seal biological vessels using a confined microwave field that yields a well-defined seal location with low thermal margin. The device comprises a pair of jaws that are movable relative to each other to grip biological tissue. A blade for cutting the gripped tissue is slidable between the jaws. A coplanar microstrip antenna is mounted on the inner surface of one or both of the pair of jaws to emit microwave energy into the gap therebetween. The device may comprise a separate dissector element to enable fine tissue cutting and dissection to be performed.Type: GrantFiled: March 29, 2018Date of Patent: November 7, 2023Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, Julian Mark Ebbutt, Louis Turner, Simon Meadowcroft
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Publication number: 20230310078Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: ApplicationFiled: December 19, 2022Publication date: October 5, 2023Inventors: Simon MEADOWCROFT, Christopher Paul Hancock, George Ullrich, David Webb, Louis Turner, Julian Mark Ebbutt
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Publication number: 20230293232Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: ApplicationFiled: December 19, 2022Publication date: September 21, 2023Inventors: Simon MEADOWCROFT, Christopher Paul Hancock, George Ullrich, David Webb, Louis Turner, Julian Mark Ebbutt
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Publication number: 20230181780Abstract: Sterilisation systems suitable for clinical use for generating a flow of hydroxyl radicals, comprising: a coaxial transmission line comprising an inner and outer conductor; an end cap mounted on a distal end of the coaxial transmission line, wherein the end cap comprises an outlet aperture; a fluid conduit extending from a fluid inlet to the outlet aperture; and a plasma generating region at a proximal end of the outlet aperture, wherein the plasma generating region contains a first electrode electrically connected to the inner conductor, and a second electrode electrically connected to the outer conductor, wherein the fluid conduit defines a fluid flow path through the device aligned with a feed direction in which fluid is receivable through the fluid inlet, and wherein the first electrode and second electrode oppose each other in a transverse direction across the longitudinal fluid flow path in the plasma generating region.Type: ApplicationFiled: April 22, 2021Publication date: June 15, 2023Inventors: Christopher HANCOCK, Louis TURNER, Shaun PRESTON, Simon MEADOWCROFT
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Publication number: 20230165986Abstract: Sterilization systems suitable for clinical use, comprising: a housing defining a water mist fluid flow path between an inlet for receiving water mist and an outlet for directing a flow of hydroxyl radicals towards a region to be sterilised; an energy delivery tip configured to produce a thermal or non-thermal plasma; a coaxial transmission line arranged to convey radiofrequency (RF) and/or microwave frequency electromagnetic (EM) energy; and a gas conduit in the housing and arranged to deliver gas to the energy delivery tip, wherein the energy delivery tip extends from a distal end of the coaxial transmission line. The energy delivery tip comprises: a first electrode; and a second electrode. The first electrode and second electrode are configured to: strike a plasma in the gas delivered to the energy delivery tip, and direct the plasma into the water mist fluid flow path to form hydroxyl radicals therein.Type: ApplicationFiled: April 29, 2021Publication date: June 1, 2023Inventors: Christopher Paul HANCOCK, George ULLRICH, David Edward WEBB, Louis TURNER, George HODGKINS, Shaun PRESTON, Simon MEADOWCROFT
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Publication number: 20230128952Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: ApplicationFiled: December 19, 2022Publication date: April 27, 2023Inventors: Simon MEADOWCROFT, Christopher Paul HANCOCK, George ULLRICH, David WEBB, Louis TURNER, Juline Mark EBBUTT
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Publication number: 20230123435Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Inventors: Simon MEADOWCROFT, Christopher Paul HANCOCK, George ULLRICH, David WEBB, Louis TURNER, Julian Mark EBBUTT
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Publication number: 20230120419Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Inventors: Simon MEADOWCROFT, Christopher Paul Hancock, George Ullrich, David Webb, Louis Turner, Julian Mark Ebbutt
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Publication number: 20230118398Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Inventors: Simon MEADOWCROFT, Christopher Paul HANCOCK, George ULLRICH, David WEBB, Louis TURNER, Julian Mark EBBUTT
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Publication number: 20230120178Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Inventors: Simon MEADOWCROFT, Christopher Paul HANCOCK, George ULLRICH, David WEBB, Louis TURNER, Julian Mark EBBUTT
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Publication number: 20230121755Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Inventors: Simon MEADOWCROFT, Christopher Paul Hancock, George Ullrich, David Webb, Louis Turner, Julian Mark Ebbutt
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Publication number: 20230096889Abstract: Various embodiments provide an electrosurgical resector tool comprising: a shaft defining a lumen; an energy conveying structure for carrying electromagnetic (EM) energy through the lumen of the shaft; an instrument tip mounted at a distal end of the shaft. The instrument tip comprises: a static portion comprising a first blade element; and a movable portion comprising a second blade element, wherein the movable portion is movable relative to the static portion between a closed position in which the first blade element and second blade element lie alongside each other to an open position in which the second blade element is spaced from the first blade element by a gap for receiving biological tissue. The instrument tip also includes a travel limiting mechanism operable to limit a maximum extent of relative movement between the second blade element and the first blade element in the open position and/or the closed position.Type: ApplicationFiled: November 24, 2020Publication date: March 30, 2023Applicant: Creo Medical LimitedInventors: Christopher Paul Hancock, Louis Turner, Rohan Monico, Malcolm White, Simon Meadowcroft, Steven Morris, George Christain Ullrich
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Patent number: 11564741Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.Type: GrantFiled: May 30, 2017Date of Patent: January 31, 2023Assignee: CREO MEDICAL LIMITEDInventors: Simon Meadowcroft, Christopher Paul Hancock, George Ullrich, David Webb, Louis Turner, Julian Mark Ebbutt
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Publication number: 20230000552Abstract: The invention provides an electrosurgical instrument for delivering radiofrequency and microwave energy to biological tissue in order to cut and coagulate the tissue. The electrosurgical instrument comprises a coaxial transmission line for conveying radiofrequency (RF) energy and microwave energy, and an energy delivery tip coupled to a distal end of the coaxial transmission line. The energy delivery tip comprises: a first electrode electrically coupled to an inner conductor of the coaxial transmission line and protruding beyond a distal end of an outer conductor of the coaxial transmission line; a second electrode electrically coupled to the outer conductor of the coaxial transmission line and extending coaxially along a portion of the first electrode; and a dielectric body disposed between the first electrode and second electrode. The first electrode comprises a projecting nib that protrudes beyond a distal end of the dielectric body.Type: ApplicationFiled: December 1, 2020Publication date: January 5, 2023Applicant: Creo Medical LimitedInventors: Christopher Paul Hancock, Louis Turner, Simon Meadowcroft, George Christain Ullrich, David Edward Webb
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Patent number: 11541140Abstract: Sterilisation apparatus comprising a sterilisation instrument configured to be inserted through the instrument channel of a surgical scoping device and a withdrawal device for withdrawing the sterilisation instrument from the instrument channel at a predetermined rate. The sterilisation instrument comprises an elongate probe having a probe tip with a first electrode and a second electrode arranged to produce an electric field from received RF and/or microwave frequency EM energy. In operation the instrument may disinfect an inner surface of the instrument channel by emitting energy whilst being withdrawn through the channel.Type: GrantFiled: May 3, 2018Date of Patent: January 3, 2023Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, Louis Turner, Patrick Burn, Sandra Swain, Julian Mark Ebbutt, Simon Meadowcroft, George Christian Ullrich, David Edward Webb, John Bishop
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Patent number: 11382691Abstract: An electrosurgical vessel sealing device that can seal biological vessels using a confined microwave field that yields a well-defined seal location with low thermal margin. The device comprises a pair of jaws that are movable relative to each other to grip biological tissue. A blade for cutting the gripped tissue is slidable between the jaws. A coplanar microstrip antenna is mounted on the inner surface of one or both of the pair of jaws to emit microwave energy into the gap therebetween. The device may comprise a separate dissector element to enable fine tissue cutting and dissection to be performed.Type: GrantFiled: March 30, 2018Date of Patent: July 12, 2022Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, Julian Mark Ebbutt, Louis Turner, Simon Meadowcroft
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Publication number: 20200253664Abstract: An electrosurgical apparatus comprising an electrosurgical forceps instrument that combines la robust jaw opening mechanism with an a microwave energy delivery mechanism. The instrument includes a rigid bracket mounted at a distal end of a flexible shaft, wherein a pair of jaws are pivotably mounted on the rigid bracket. The instrument includes an energy delivery structure comprising a flexible dielectric substrate having a first electrode and an second electrode formed on one of the pair of jaws, wherein the first electrode and the second electrode are arranged to emit microwave energy. The electrosurgical apparatus may also comprise a handpiece that combines rotation control of an electrosurgical instrument with both power delivery and end effector actuation (e.g. jaw closure, blade retraction or the like).Type: ApplicationFiled: October 12, 2018Publication date: August 13, 2020Inventors: Christopher Paul HANCOCK, George Christian ULLRICH, David Edward WEBB, Louis TURNER, Simon MEADOWCROFT, Jessi JOHNSON, Miriam TAIMISTO
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Publication number: 20200222112Abstract: An electrosurgical resector tool having an energy delivery structure that provides a plurality of operational modalities that facilitate biological tissue cutting and sealing using radiofrequency (RF) electromagnetic (EM) energy and/or microwave EM energy. The tool comprises a static first blade element, and a pivotable second blade element that has a length commensurate with the first blade element whereby, in a closed position, it lies adjacent to a laterally facing surface of the first blade element. The blade elements constitute an energy delivery mechanisms that is compact enough to enable the tool to be insertable through an instrument channel of a surgical scoping device, such as an endoscope, gastroscope or bronchoscope.Type: ApplicationFiled: October 12, 2018Publication date: July 16, 2020Inventors: Christopher Paul HANCOCK, Louis TURNER, Patrick BURN, Malcolm WHITE, Simon MEADOWCROFT, George Christian ULLRICH, David Edward WEBB
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Publication number: 20200155266Abstract: Sterilisation apparatus comprising a sterilisation instrument configured inserted through the instrument channel of a surgical scoping device and a withdrawal device for withdrawing the sterilisation instrument from the instrument channel predetermined rate. The sterilisation instrument comprises an elongate probe having probe tip with a first electrode and a second electrode arranged to produce an electric field from received RF and/or microwave frequency EM energy. In operation the instrument may disinfect an inner surface of the instrument channel by emitting energy whilst being withdrawn through the channel.Type: ApplicationFiled: May 3, 2018Publication date: May 21, 2020Inventors: Christopher Paul HANCOCK, Louis TURNER, Patrick BURN, Sandra SWAIN, Julian Mark EBBUTT, Simon MEADOWCROFT, George Christian ULLRICH, David Edward WEBB, John BISHOP