Patents by Inventor Andrew J. McGregor
Andrew J. McGregor 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: 7983540Abstract: A heat exchanger has a laminar fluid flow path receivable between the heating plates of a high flow rate infusion unit to which heat is conducted by contact with the heating plates. A bubble trap and a valve are integrated with the heat exchanger. The bubble trap collects air from the infusate exiting the laminar flow path, and includes an air vent in contact with the infusate that vents the air from the bubble trap. The valve shuts off the flow of infusate if air is detected in the bubble trap.Type: GrantFiled: March 11, 2010Date of Patent: July 19, 2011Assignee: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller, Donald E. Stapf
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Patent number: 7927302Abstract: A high flow rate infusion unit includes a heating unit with opposing, electrically-operated heating plates that contact a heat exchanger to heat infusate flowing therethrough. Pressure infusers on the infusion unit are operable to provide infusate at a high flow rate. A flat, elongate heat exchanger has a laminar fluid flow path receivable between the heating plates to which heat is conducted by contact with the heating plates. A bubble trap and a valve are disposed within the heat exchanger. The bubble trap collects bubbles and vents air from infusate exiting the fluid flow path, and the valve shuts off the flow of infusate if the volume of air in the bubble trap exceeds a predefined limit.Type: GrantFiled: April 24, 2007Date of Patent: April 19, 2011Assignee: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Melanie L. Hall, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller, Dirk Ahlgrim, Timothy R. Proulx
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Publication number: 20110022134Abstract: An underbody convective warming blanket includes a duct that is separate from, but in fluid communication with, interior space of the underbody convective warming blanket. The duct may be deployed to provide an air circulation conduit to shunt air around the air distribution structure in the interior space. The duct may be a flexible tube having a first end coupled to a first duct port in the underbody convective warming blanket near a first end of the underbody convective warming blanket and a second end to be coupled to a second duct port in the underbody convective warming blanket near a second end of the underbody convective warming blanket. An underbody convective warming blanket may include a midsection with an elongate columnar configuration which transitions at an end, or at each end, to a plinth-like configuration.Type: ApplicationFiled: July 27, 2009Publication date: January 27, 2011Applicant: Arizant Healthcare Inc.Inventors: Thomas P. Anderson, Andrew J. McGregor, Mark J. Scott
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Publication number: 20100300293Abstract: A bubble trap for separating and collecting air and bubbles from a high flow rate stream of infusate includes multiple flow chambers to collect air, a sensor support mounted to one of the chambers, an air vent disposed in one of the chambers, and a valve in fluid communication with the chambers to control the flow of infusate therethrough.Type: ApplicationFiled: July 29, 2010Publication date: December 2, 2010Applicant: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller
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Patent number: 7803217Abstract: A bubble trap for separating and collecting air and bubbles from a high flow rate stream of infusate includes multiple flow chambers to collect air, a sensor support mounted to one of the chambers, an air vent disposed in one of the chambers, and a valve in fluid communication with the chambers to control the flow of infusate therethrough.Type: GrantFiled: April 24, 2007Date of Patent: September 28, 2010Assignee: Arizant Healthcare, Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller
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Publication number: 20100222737Abstract: A high flow rate infusion unit includes a heating unit with opposing, electrically-operated heating plates that contact a heat exchanger to heat infusate flowing therethrough. Pressure infusers on the infusion unit are operable to provide infusate at a high flow rate. A flat, elongate heat exchanger has a laminar fluid flow path receivable between the heating plates to which heat is conducted by contact with the heating plates. A bubble trap and a valve are disposed within the heat exchanger. The bubble trap collects bubbles and vents air from infusate exiting the fluid flow path, and the valve shuts off the flow of infusate if the volume of air in the bubble trap exceeds a predefined limit.Type: ApplicationFiled: April 16, 2010Publication date: September 2, 2010Applicant: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Melanie L. Hall, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller, Dirk Ahlgrim, Timothy R. Proulx
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Publication number: 20100185149Abstract: A heat exchanger has a laminar fluid flow path receivable between the heating plates of a high flow rate infusion unit to which heat is conducted by contact with the heating plates. A bubble trap and a valve are integrated with the heat exchanger. The bubble trap collects air from the infusate exiting the laminar flow path, and includes an air vent in contact with the infusate that vents the air from the bubble trap. The valve shuts off the flow of infusate if air is detected in the bubble trap.Type: ApplicationFiled: March 11, 2010Publication date: July 22, 2010Applicant: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller, Donald E. Stapf
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Publication number: 20100179624Abstract: A warming device includes a poncho-type patient gown having a major body portion with inside and outside surfaces, a central panel in the major body portion, opposing sleeve portions in the central panel, and a head opening in the central panel, between the sleeve portions. An inflatable convective warming apparatus is supported on a surface of the patient gown, extending from a lower edge of the patient gown at least to the head opening.Type: ApplicationFiled: December 21, 2009Publication date: July 15, 2010Applicant: Arizant Healthcare Inc.Inventors: Thomas P. Anderson, Jared J. Balthazor, Paul T. Kennedy, Andrew J. McGregor, Christopher A. Miller, Mark A. Poppen
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Patent number: 7720362Abstract: A heat exchanger has a laminar fluid flow path receivable between the heating plates of a high flow rate infusion unit to which heat is conducted by contact with the heating plates. A bubble trap and a valve are integrated with the heat exchanger. The bubble trap collects air from the infusate exiting the laminar flow path, and includes an air vent in contact with the infusate that vents the air from the bubble trap. The valve shuts off the flow of infusate if air is detected in the bubble trap.Type: GrantFiled: April 24, 2007Date of Patent: May 18, 2010Assignee: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller, Donald E. Stapf
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Publication number: 20080269679Abstract: A bubble trap for separating and collecting air and bubbles from a high flow rate stream of infusate includes multiple flow chambers to collect air, a sensor support mounted to one of the chambers, an air vent disposed in one of the chambers, and a valve in fluid communication with the chambers to control the flow of infusate therethrough.Type: ApplicationFiled: April 24, 2007Publication date: October 30, 2008Applicant: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller
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Publication number: 20080269663Abstract: A high flow rate infusion unit includes a heating unit with opposing, electrically-operated heating plates that contact a heat exchanger to heat infusate flowing therethrough. Pressure infusers on the infusion unit are operable to provide infusate at a high flow rate. A flat, elongate heat exchanger has a laminar fluid flow path receivable between the heating plates to which heat is conducted by contact with the heating plates. A bubble trap and a valve are disposed within the heat exchanger. The bubble trap collects bubbles and vents air from infusate exiting the fluid flow path, and the valve shuts off the flow of infusate if the volume of air in the bubble trap exceeds a predefined limit.Type: ApplicationFiled: April 24, 2007Publication date: October 30, 2008Applicant: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Melanie L. Hall, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller, Dirk Ahlgrim, Timothy R. Proulx
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Publication number: 20080267599Abstract: A heat exchanger has a laminar fluid flow path receivable between the heating plates of a high flow rate infusion unit to which heat is conducted by contact with the heating plates. A bubble trap and a valve are integrated with the heat exchanger. The bubble trap collects air from the infusate exiting the laminar flow path, and includes an air vent in contact with the infusate that vents the air from the bubble trap. The valve shuts off the flow of infusate if air is detected in the bubble trap.Type: ApplicationFiled: April 24, 2007Publication date: October 30, 2008Applicant: Arizant Healthcare Inc.Inventors: Randall C. Arnold, Mark T. Bieberich, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller, Donald E. Stapf
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Publication number: 20080269676Abstract: An infusion unit includes a heating unit with opposed heating plates. A heat exchanger has a fluid flow path receivable between the heating plates to which heat is conducted by contact with the heating plates. Infusate flowing under pressure through the fluid flow path is heated by conduction from the heating plates through the fluid container. When the flow of infusate is stopped or interrupted, infusate trapped in the heat exchanger is displaced to a reservoir in the heat exchanger. Displacement of the trapped infusate reduces friction between the fluid container and the heating plates, which assists in extraction of the heat exchanger from the heating unit.Type: ApplicationFiled: April 22, 2008Publication date: October 30, 2008Applicant: Arizant Healthcare Inc.Inventors: Mark T. Bieberich, Melanie L. Collins, Gary L. Hansen, Andrew J. McGregor, Christopher A. Miller, Donald E. Stapf, Winston T. Tan