Patents by Inventor Chet M. Crump
Chet M. Crump 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: 10835316Abstract: An emitter assembly can include a proximal shaft, a distal shaft, a shunt that connects the proximal shaft to the distal shaft, and a tip that is connected to a distal end of the distal shaft. An inner conductor can extend through the proximal shaft, the shunt, and the distal shaft and into the tip to provide microwave energy to the tip. An outer conductor can extend into the shunt. The shunt can therefore form an electrical connection between the outer conductor and a proximal ring of electrically conductive material formed on an exterior surface of the distal shaft. Distal shaft can be made of a thermally conductive but electrically insulated material to facilitate transfer of heat from the distal shaft to the proximal shaft.Type: GrantFiled: May 14, 2018Date of Patent: November 17, 2020Assignee: Endocare, Inc.Inventors: Chet M. Crump, Kent Moore, Mark Sedlacek, Todd H. Turnlund
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Publication number: 20190117305Abstract: An emitter assembly can include a proximal shaft, a distal shaft, a shunt that connects the proximal shaft to the distal shaft, and a tip that is connected to a distal end of the distal shaft. An inner conductor can extend through the proximal shaft, the shunt, and the distal shaft and into the tip to provide microwave energy to the tip. An outer conductor can extend into the shunt. The shunt can therefore form an electrical connection between the outer conductor and a proximal ring of electrically conductive material formed on an exterior surface of the distal shaft. Distal shaft can be made of a thermally conductive but electrically insulated material to facilitate transfer of heat from the distal shaft to the proximal shaft.Type: ApplicationFiled: May 14, 2018Publication date: April 25, 2019Inventors: Chet M. Crump, Kent Moore, Mark Sedlacek, Todd H. Turnlund
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Patent number: 9968400Abstract: An emitter assembly can include a proximal shaft, a distal shaft, a shunt that connects the proximal shaft to the distal shaft, and a tip that is connected to a distal end of the distal shaft. An inner conductor can extend through the proximal shaft, the shunt, and the distal shaft and into the tip to provide microwave energy to the tip. An outer conductor can extend into the shunt. The shunt can therefore form an electrical connection between the outer conductor and a proximal ring of electrically conductive material formed on an exterior surface of the distal shaft. Distal shaft can be made of a thermally conductive but electrically insulated material to facilitate transfer of heat from the distal shaft to the proximal shaft.Type: GrantFiled: June 20, 2014Date of Patent: May 15, 2018Assignee: PERSEON CORPORATIONInventors: Chet M. Crump, Kent Moore, Mark Sedlacek, Todd H. Turnlund
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Publication number: 20150366613Abstract: Ablation probes can include one or more metalized ceramic components. A metalized ceramic component can include one or more traces for conducting electrical energy and/or for functioning as an antenna for emitting radiation during an ablation procedure. A shaft of an ablation probe may be formed of metalized ceramic to give the shaft strength and to provide an electrical insulator between traces formed on the shaft and other components of the probe. A tip of an ablation probe may also be formed of metalized ceramic.Type: ApplicationFiled: June 20, 2014Publication date: December 24, 2015Inventors: Chet M. Crump, Kent Moore, Mark Sedlacek, Todd H. Turnlund
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Publication number: 20150366612Abstract: An emitter assembly can include a proximal shaft, a distal shaft, a shunt that connects the proximal shaft to the distal shaft, and a tip that is connected to a distal end of the distal shaft. An inner conductor can extend through the proximal shaft, the shunt, and the distal shaft and into the tip to provide microwave energy to the tip. An outer conductor can extend into the shunt. The shunt can therefore form an electrical connection between the outer conductor and a proximal ring of electrically conductive material formed on an exterior surface of the distal shaft. Distal shaft can be made of a thermally conductive but electrically insulated material to facilitate transfer of heat from the distal shaft to the proximal shaft.Type: ApplicationFiled: June 20, 2014Publication date: December 24, 2015Inventors: Chet M. Crump, Kent Moore, Mark Sedlacek, Todd H. Turnlund
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Publication number: 20130072924Abstract: A radio frequency ablation antenna is disclosed. The micro-strip ablation antenna has a dielectric member having a substantially tubular shape. A first conductor is disposed within the dielectric member, and a second conductor is disposed on an outer surface of the dielectric member. The first conductor is configured to be electrically connected to a radio frequency source or ground, and the second conductor is configured to be electrically connected to the other of the radio frequency source or the ground.Type: ApplicationFiled: September 13, 2012Publication date: March 21, 2013Applicant: BSD MEDICAL CORPORATIONInventors: Robert H. Burgener, Todd H. Turnlund, Chet M. Crump, Kent Moore
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Patent number: 7549419Abstract: A heat and moisture exchanger (HME) adaptor for a closed suction catheter assembly having one end in communication with a closed suction catheter assembly and another end configured to rotationally engage and releasably hold the HME is disclosed herein. The adaptor may include a retainer having an aperture that engages projections on the HME to releasably secure the adaptor to the HME. The adaptor may include a retaining ring that may be deformed or rotated to engage or disengage projections on the HME. The adaptor may be used with extended use closed suction catheter assemblies.Type: GrantFiled: June 23, 2004Date of Patent: June 23, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Wayne D. Carlsen, Chet M. Crump
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Patent number: 7152603Abstract: The present invention relates to an improved flap valve or other internal component for use with respiratory suction catheter and manifold assemblies. This flap valve or other internal component provides the assembly with an improved mechanism for cleaning the tip of the catheter without drawing an excessive amount of air from the respiration circuit to which the endotracheal catheter is attached. More specifically, the present invention relates principally to a closed suction endotracheal catheter system which provides improved cleaning of the catheter while minimizing air drawn from the patient's ventilation circuit by providing at least one protrusion on at least one surface of the flap valve or other internal component. By using a flap valve or other internal component with at least one protrusion, the flap valve or other internal component is strengthened and designed to prevent the flap from scraping mucus or other secretions from the catheter onto the distal surface of the flap during retraction.Type: GrantFiled: December 13, 1999Date of Patent: December 26, 2006Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Chet M. Crump, Edward B. Madsen
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Patent number: 7147252Abstract: A connector for a respiratory assembly is provided. The connector includes a body that has a first end and a second end. The body has a passage disposed therethrough from the first end to the second end to allow for transport of fluids and objects through the body. The passage changes direction approximately 120° between the first end and the second end. The first end includes a coupling that is configured to rotatably engage a first member of the respiratory assembly. The second end includes a coupling that is configured to rotatably engage a second member of the respiratory assembly.Type: GrantFiled: December 21, 2001Date of Patent: December 12, 2006Assignee: Kimberly-Clark Worldwide, Inc.Inventors: L. John Teuscher, D. Theron Van Hooser, Edward B. Madsen, Chet M. Crump
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Patent number: 7021313Abstract: An improved respiratory suction apparatus catheter includes a manifold for attachment to the distal hub of an endotracheal tube to form a respiration circuit, a catheter tube which is displaceable through the manifold and into the endotracheal tube to suction secretions from the tube and lungs, and a valve mechanism disposed adjacent the respiration circuit to minimize the draw of air from the respiration circuit of a patient while the catheter tube is being cleaned. In a preferred embodiment of the invention, the catheter tube is cleaned more thoroughly than in the prior art while simultaneously drawing little or no air from the patient's respiration circuit.Type: GrantFiled: November 20, 2000Date of Patent: April 4, 2006Assignee: Ballard Medical ProductsInventors: Chet M. Crump, Edward B. Madsen
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Publication number: 20040255952Abstract: A heat and moisture exchanger (HME) adaptor for a closed suction catheter assembly having one end in communication with a closed suction catheter assembly and another end configured to rotationally engage and releasably hold the HME is disclosed herein. The adaptor may include a retainer having an aperture that engages projections on the HME to releasably secure the adaptor to the HME. The adaptor may include a retaining ring that may be deformed or rotated to engage or disengage projections on the HME. The adaptor may be used with extended use closed suction catheter assemblies.Type: ApplicationFiled: June 23, 2004Publication date: December 23, 2004Applicant: Kimberly-Clark Worldwide, Inc.Inventors: Wayne D. Carlsen, Chet M. Crump
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Patent number: 6805125Abstract: An improved respiratory suction apparatus—catheter includes a manifold for attachment to the distal hub of an endotracheal tube to form a respiration circuit, a catheter tube which is displaceable through the manifold and into the endotracheal tube to suction secretions from the tube and lungs, and a valve mechanism disposed adjacent the respiration circuit to minimize the draw of air from the respiration circuit of a patient while the catheter is being cleaned. In a preferred embodiment of the invention, the catheter is cleaned more thoroughly than in the prior art while simultaneously drawing little or no air from the patient's respiration circuit.Type: GrantFiled: October 20, 2000Date of Patent: October 19, 2004Assignee: Ballard Medical ProductsInventors: Chet M. Crump, Edward B. Madsen, V. Roland Smith
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Patent number: 6769430Abstract: A heat and moisture exchanger (HME) adaptor for a closed suction catheter assembly having one end in communication with a closed suction catheter assembly and another end configured to engage and releasably hold the HME is disclosed herein. The adaptor may include a retainer having an aperture that engages projections on the HME to releasably secure the adaptor to the HME. The adaptor may include a retaining ring or retaining arms that may be deformed or rotated to engage or disengage the projections from the HME.Type: GrantFiled: October 31, 2000Date of Patent: August 3, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Wayne D. Carlsen, Chet M. Crump
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Patent number: 6609520Abstract: An adaptor is used to connect a closed suction catheter assembly to an artificial airway, such as a tracheostomy tube. The adaptor includes a housing, the internal chamber of which includes structure to allow a patient to breathe through the adaptor when attached to artificial airway. The adaptor may further contain a release assembly for separating the housing of the adaptor from the tracheostomy tube.Type: GrantFiled: October 31, 2000Date of Patent: August 26, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Wayne D. Carlsen, Chet M. Crump
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Patent number: 6602219Abstract: A method and apparatus are provided for cleaning a medical device tube, for example a catheter tube. The distal end portion of the tube has a distal opening and at least one side opening adjacent to the distal opening. The distal end of the tube is disposed in a closed chamber with the distal opening generally opposite from a first orifice defined in the chamber. A liquid is introduced into the chamber and is drawn into the distal opening in the tube, for example by a suction force. A different fluid medium, such as air, is drawn through the first orifice and into the distal opening in the tube. A turbulent flow path is established with the fluid medium wherein the medium is drawn through the first orifice, into the distal opening in the tube, out the side opening in the tube, and back into the distal opening in the tube. This turbulent flow path enhances the cleaning action of the liquid introduced into the chamber for cleaning the distal end portion of the tube within the chamber.Type: GrantFiled: December 19, 2000Date of Patent: August 5, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Edward B. Madsen, Wayne D. Carlsen, Chet M. Crump
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Patent number: 6588427Abstract: An endotracheal suction catheter apparatus is provided. The apparatus includes a distal end that is configured for allowing a catheter to be moved through the distal end and into the respiratory tract of a patient. The distal end defines a cleaning chamber where the catheter may be cleaned. A flap is located in the distal end and is located on one end of the cleaning chamber. The flap effects fluid flow within the cleaning chamber during cleaning of the catheter. A connection member is present and is attached to the distal end. The connection member is configured for releasably engaging a heat and moisture exchanger so that the catheter may be advanced through the distal end into the heat and moisture exchanger.Type: GrantFiled: February 25, 2002Date of Patent: July 8, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Wayne D. Carlsen, Chet M. Crump, Edward B. Madsen
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Patent number: 6584970Abstract: The present invention provides a plug for a respiratory suction catheter and manifold assembly that protects or maintains at least one internal component, such as the flap, of an assembly during nonuse. In a preferred embodiment, the interior plug element functions or contains a spring or similar expanding mechanism. This provides for additional security for the internal components. Further, the plug may contain an exterior plug element as well as an interior plug element.Type: GrantFiled: October 5, 1999Date of Patent: July 1, 2003Assignee: Ballard Medical ProductsInventors: Chet M. Crump, Edward B. Madsen
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Publication number: 20030116963Abstract: A connector for a respiratory assembly is provided. The connector includes a body that has a first end and a second end. The body has a passage disposed therethrough from the first end to the second end to allow for transport of fluids and objects through the body. The passage changes direction approximately 120° between the first end and the second end. The first end includes a coupling that is configured to rotatably engage a first member of the respiratory assembly. The second end includes a coupling that is configured to rotatably engage a second member of the respiratory assembly.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Applicant: Kimberly-Clark Worldwide, Inc.Inventors: L. John Teuscher, D. Theron Van Hooser, Edward B. Madsen, Chet M. Crump
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Patent number: 6543451Abstract: An improved respiratory suction apparatus catheter comprising a manifold for attachment to the distal hub of an endotracheal tube to form a ventilation circuit, a catheter tube which is displaceable through the manifold and into the endotracheal tube to suction secretions from the tube and lungs, and at least one wiper seal disposed adjacent the ventilation circuit to minimize the draw of air from the ventilation circuit of a patient while the catheter is being cleaned. In a preferred embodiment of the invention, the catheter is cleaned more thoroughly than in the prior art while simultaneously drawing little or no air from the patient's ventilation circuit, thus extending the usable duration of the catheter apparatus. Another preferred embodiment comprises a valve, most preferably a flap valve distal of the wiper seal within the manifold, improves the cleaning of the catheter by selectively restricting or occluding the retracted catheter.Type: GrantFiled: December 23, 1999Date of Patent: April 8, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Chet M. Crump, Edward B. Madsen
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Publication number: 20020077586Abstract: A method and apparatus are provided for cleaning a medical device tube, for example a catheter tube. The distal end portion of the tube has a distal opening and at least one side opening adjacent to the distal opening. The distal end of the tube is disposed in a closed chamber with the distal opening generally opposite from a first orifice defined in the chamber. A liquid is introduced into the chamber and is drawn into the distal opening in the tube, for example by a suction force. A different fluid medium, such as air, is drawn through the first orifice and into the distal opening in the tube. A turbulent flow path is established with the fluid medium wherein the medium is drawn through the first orifice, into the distal opening in the tube, out the side opening in the tube, and back into the distal opening in the tube. This turbulent flow path enhances the cleaning action of the liquid introduced into the chamber for cleaning the distal end portion of the tube within the chamber.Type: ApplicationFiled: December 19, 2000Publication date: June 20, 2002Inventors: Edward B. Madsen, Wayne D. Carlsen, Chet M. Crump