Patents by Inventor Greg McArthur
Greg McArthur 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: 7972282Abstract: A torque device for selectively gripping a medical guidewire. The device includes a housing, an actuator slidably mounted on the housing, and a resilient member biasing the actuator. A lumen dimensioned to receive the guidewire extends through the housing and actuator. The resilient member biases the actuator from a first position in which the lumen portions are aligned, toward a second position in which the lumen portions are misaligned. The actuator may include a catch that interferes with a stop of the housing to retain the actuator within the housing. The actuator may be oblong or otherwise shaped to maintain the lumen portions in substantial alignment in a longitudinal direction. Preferably, at least a portion of the lumen is teardrop-shaped in cross-section. The housing may include circumferentially or longitudinally extending ribs defining an outer grasping surface. Frusto-conical cavities may be defined at entry and exit ends of the lumen.Type: GrantFiled: March 20, 2007Date of Patent: July 5, 2011Assignee: Merit Medical Systems, Inc.Inventors: Timothy W. I. Clark, Greg McArthur, William Padilla
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Patent number: 7547296Abstract: A catheter securement device which automatically deploys one or more sutures to secure a catheter without requiring the practitioner to manually suture the catheter to the self-suturing anchor device. A ratchet mechanism having one or more rotatable ratchet members, which pivot, and a ratchet member engagement spring, which maintains contact between the teeth of the rotatable ratchet member and the teeth of the ratchet ring. A suture retention assembly is provided to maintain the position of the sutures to minimize disruption of the sutures before deployment of the sutures.Type: GrantFiled: September 26, 2006Date of Patent: June 16, 2009Assignee: Merit Medical Systems, Inc.Inventors: Fred P. Lampropoulos, Arlin Dale Nelson, Brian Stevens, Greg McArthur, William Padilla
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Patent number: 7540857Abstract: A catheter securement device which automatically deploys one or more sutures to secure a catheter without requiring the practitioner to manually suture the catheter to the self-suturing anchor device. A ratchet mechanism having one or more rotatable ratchet members which pivot and a ratchet member engagement spring which maintains contact between the teeth of the rotatable ratchet member and the teeth of the ratchet ring. An O-ring is provided to maintain the position of the sutures to minimize disruption of the sutures before deployment of the sutures. In one embodiment, a stationary base of the anchor device comprises a single molded member. In another embodiment a method of manufacturing the catheter anchor device comprising welding a rotatable ring and one or more bearing members of the catheter anchor device through access bores in the stationary base.Type: GrantFiled: August 11, 2005Date of Patent: June 2, 2009Assignee: Merit Medical Systems, Inc.Inventors: D. Kent Backman, Brian Stevens, Greg McArthur, William Padilla, Fred P. Lampropoulos
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Publication number: 20080015509Abstract: A catheter securement device which automatically deploys one or more sutures to secure a catheter without requiring the practitioner to manually suture the catheter to the self-suturing anchor device. A ratchet mechanism having one or more rotatable ratchet members which pivot and a ratchet member engagement spring which maintains contact between the teeth of the rotatable ratchet member and the teeth of the ratchet ring. An O-ring is provided to maintain the position of the sutures to minimize disruption of the sutures before deployment of the sutures. In one embodiment, a stationary base of the anchor device comprises a single molded member. In another embodiment a method of manufacturing the catheter anchor device comprising welding a rotatable ring and one or more bearing members of the catheter anchor device through access bores in the stationary base.Type: ApplicationFiled: August 11, 2005Publication date: January 17, 2008Inventors: D. Kent Backman, Brian Stevens, Greg McArthur, William Padilla, Fred P. Lampropoulos
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Publication number: 20070219467Abstract: A torque device for selectively gripping a medical guidewire. The device includes a housing, an actuator slidably mounted on the housing, and a resilient member biasing the actuator. A lumen dimensioned to receive the guidewire extends through the housing and actuator. The resilient member biases the actuator from a first position in which the lumen portions are aligned, toward a second position in which the lumen portions are misaligned. The actuator may include a catch that interferes with a stop of the housing to retain the actuator within the housing. The actuator may be oblong or otherwise shaped to maintain the lumen portions in substantial alignment in a longitudinal direction. Preferably, at least a portion of the lumen is teardrop-shaped in cross-section. The housing may include circumferentially or longitudinally extending ribs defining an outer grasping surface. Frusto-conical cavities may be defined at entry and exit ends of the lumen.Type: ApplicationFiled: March 20, 2007Publication date: September 20, 2007Applicant: MERIT MEDICAL SYSTEMS, INC.Inventors: Timothy Clark, Greg McArthur, William Padilla
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Publication number: 20070066942Abstract: A catheter securement device which automatically deploys one or more sutures to secure a catheter without requiring the practitioner to manually suture the catheter to the self-suturing anchor device. A ratchet mechanism having one or more rotatable ratchet members, which pivot, and a ratchet member engagement spring, which maintains contact between the teeth of the rotatable ratchet member and the teeth of the ratchet ring. A suture retention assembly is provided to maintain the position of the sutures to minimize disruption of the sutures before deployment of the sutures.Type: ApplicationFiled: September 26, 2006Publication date: March 22, 2007Inventors: Fred Lampropoulos, Arlin Nelson, Brian Stevens, Greg McArthur, William Padilla
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Patent number: 6966893Abstract: An over pressurization relief apparatus having a manual over pressurization selector which allows a user to manually select from at least a first and second over pressurization limit. The over pressurization relief apparatus includes a pressurization chamber, a pressure relief mechanism, a seal, and a manual over pressurization selector. The pressurization of the pressurization chamber corresponds with the pressurization of the pressure infusion bag. The pressure relief mechanism prevents additional pressurization of the pressure infusion bag once the over pressurization limit has been reached. The seal is positioned between the pressurization chamber and the pressure relief mechanism to prevent the loss of pressurization from the pressure infusion bag when the pressurization in the pressurization chamber is less than the over pressurization limit.Type: GrantFiled: August 26, 2003Date of Patent: November 22, 2005Assignee: Merit Medical Systems, Inc.Inventors: Troy Holtby, Greg McArthur, Tom Stout, Arlin Dale Nelson
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Publication number: 20050049548Abstract: An over pressurization relief apparatus having a manual over pressurization selector which allows a user to manually select from at least a first and second over pressurization limit. The over pressurization relief apparatus includes a pressurization chamber, a pressure relief mechanism, a seal, and a manual over pressurization selector. The pressurization of the pressurization chamber corresponds with the pressurization of the pressure infusion bag. The pressure relief mechanism prevents additional pressurization of the pressure infusion bag once the over pressurization limit has been reached. The seal is positioned between the pressurization chamber and the pressure relief mechanism to prevent the loss of pressurization from the pressure infusion bag when the pressurization in the pressurization chamber is less than the over pressurization limit.Type: ApplicationFiled: August 26, 2003Publication date: March 3, 2005Inventors: Troy Holtby, Greg McArthur, Tom Stout, Arlin Nelson
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Patent number: 6719017Abstract: The present invention provides a waste collection system including a receptacle housing at least one chamber configured to accept waste and at least one containment layer configured to retain waste within the at least one chamber. The at least one chamber of the at least one containment layer includes a vent to allow gases to escape from the chamber. The at least one containment layer may be configured to quickly deliver waste to an aperture therein. A valve member configured to direct waste into the at least one chamber may be associated with the aperture. A method of using the waste collection system is also provided.Type: GrantFiled: January 10, 2002Date of Patent: April 13, 2004Assignee: Merit Medical Systems, Inc.Inventors: Greg McArthur, Fred P. Lampropoulos, Arlin D. Nelson
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Patent number: D502993Type: GrantFiled: January 10, 2002Date of Patent: March 15, 2005Assignee: Merit Medical Systems, Inc.Inventors: Greg McArthur, Fred P. Lampropoulos, Arlin D. Nelson