Patents by Inventor Paul R. Chapman
Paul R. Chapman 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: 11491321Abstract: A pneumatic system for a medical fluid machine operating a medical fluid cassette, the pneumatic system including an interface for supplying positive pneumatic pressure and negative pneumatic pressure to the medical fluid cassette; a source of positive pneumatic pressure; a source of negative pneumatic pressure; and a pneumatic pump including a first head and a second head, wherein the first head is dedicated to supplying positive pneumatic pressure to the positive pneumatic pressure source and the second head is dedicated to supplying negative pneumatic pressure to the negative pneumatic pressure source.Type: GrantFiled: November 11, 2019Date of Patent: November 8, 2022Assignees: Baxter International Inc., Baxter Healthcare SAInventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Patent number: 11278654Abstract: The invention relates to a pneumatic manifold for controlling a fluid level in an arterial and/or venous drip chamber of a dialysis system. The pneumatic manifold includes pneumatic valves fluidly connected to conduits and one or more pumps. Selectively activating the pneumatic valves can result in pressure changes for raising or lowering a fluid level in the arterial and/or venous drip chambers.Type: GrantFiled: October 2, 2018Date of Patent: March 22, 2022Assignee: Medtronic, Inc.Inventors: Paul R. Chapman, Jr., William Hajko, Carl Wilbert Gomes, II
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Publication number: 20210252203Abstract: The present invention relates to a sorbent manifold and related systems and methods having a plurality of passageways fluidly connectable to one or more valves and one or more sensors and components for use in a sorbent dialysis system. The sorbent manifold can control the one or more valves to direct fluid to either pass through a sorbent cartridge or bypass the sorbent cartridge based on measurements obtained from sensors.Type: ApplicationFiled: May 4, 2021Publication date: August 19, 2021Applicant: Medtronic, Inc.Inventors: Paul R. Chapman, Carl Wilbert Gomes, II
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Patent number: 11033667Abstract: The present invention relates to a sorbent manifold and related systems and methods having a plurality of passageways fluidly connectable to one or more valves and one or more sensors and components for use in a sorbent dialysis system. The sorbent manifold can control the one or more valves to direct fluid to either pass through a sorbent cartridge or bypass the sorbent cartridge based on measurements obtained from sensors.Type: GrantFiled: October 10, 2018Date of Patent: June 15, 2021Assignee: Medtronic, Inc.Inventors: Paul R. Chapman, Jr., Carl Wilbert Gomes, II
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Publication number: 20200069856Abstract: A pneumatic system for a medical fluid machine operating a medical fluid cassette, the pneumatic system including an interface for supplying positive pneumatic pressure and negative pneumatic pressure to the medical fluid cassette; a source of positive pneumatic pressure; a source of negative pneumatic pressure; and a pneumatic pump including a first head and a second head, wherein the first head is dedicated to supplying positive pneumatic pressure to the positive pneumatic pressure source and the second head is dedicated to supplying negative pneumatic pressure to the negative pneumatic pressure source.Type: ApplicationFiled: November 11, 2019Publication date: March 5, 2020Inventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Patent number: 10471192Abstract: A medical fluid pneumatic manifold system includes a first plate including a plurality of apertures, a second plate attached to the first plate so as to form a plurality of pneumatic flowpaths sealed between the first plate and the second plate, a plurality of tubing connections and a plurality of pneumatic tubes connected to the plurality of tubing connections, the plurality of tubing connections placing the plurality of pneumatic tubes in pneumatic communication with the plurality of pneumatic flowpaths via the plurality of apertures of the first plate, and a pneumatic reservoir in pneumatic communication with the plurality of pneumatic flowpaths, the pneumatic reservoir configured to provide pneumatic pressure to the plurality of pneumatic tubes.Type: GrantFiled: March 22, 2017Date of Patent: November 12, 2019Assignees: Baxter International Inc., Baxter Healthcare SAInventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Publication number: 20190240388Abstract: The present invention relates to a sorbent manifold and related systems and methods having a plurality of passageways fluidly connectable to one or more valves and one or more sensors and components for use in a sorbent dialysis system. The sorbent manifold can control the one or more valves to direct fluid to either pass through a sorbent cartridge or bypass the sorbent cartridge based on measurements obtained from sensors.Type: ApplicationFiled: October 10, 2018Publication date: August 8, 2019Inventors: Paul R. Chapman, JR., Carl Wilbert Gomes, II
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Publication number: 20190175814Abstract: The invention relates to a pneumatic manifold for controlling a fluid level in an arterial and/or venous drip chamber of a dialysis system. The pneumatic manifold includes pneumatic valves fluidly connected to conduits and one or more pumps. Selectively activating the pneumatic valves can result in pressure changes for raising or lowering a fluid level in the arterial and/or venous drip chambers.Type: ApplicationFiled: October 2, 2018Publication date: June 13, 2019Inventors: Paul R. Chapman, JR., William Hajko, Carl Wilbert Gomes, II
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Publication number: 20190151527Abstract: The invention relates to a system of integrated manifolds for use in dialysis. The system of integrated manifolds can include two or more manifolds connected by fluid lines, the manifolds forming at least a portion of a dialysate flow path. In certain embodiments, valves, sensors, and/or pumps can be included. A controller can control the valves and pumps to pump fluid through the manifolds in a specified flow path.Type: ApplicationFiled: October 2, 2018Publication date: May 23, 2019Inventors: Paul R. Chapman, JR., Carl Wilbert Gomes, II
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Publication number: 20170189592Abstract: A medical fluid pneumatic manifold system includes a first plate including a plurality of apertures, a second plate attached to the first plate so as to form a plurality of pneumatic flowpaths sealed between the first plate and the second plate, a plurality of tubing connections and a plurality of pneumatic tubes connected to the plurality of tubing connections, the plurality of tubing connections placing the plurality of pneumatic tubes in pneumatic communication with the plurality of pneumatic flowpaths via the plurality of apertures of the first plate, and a pneumatic reservoir in pneumatic communication with the plurality of pneumatic flowpaths, the pneumatic reservoir configured to provide pneumatic pressure to the plurality of pneumatic tubes.Type: ApplicationFiled: March 22, 2017Publication date: July 6, 2017Inventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Patent number: 9623168Abstract: A medical fluid pneumatic manifold system includes a plurality of pump and valve chambers for controlling a flow of medical fluid, a header including a plurality of pneumatic passageways, each passageway in pneumatic communication with one of the pump or valve chambers, a plurality of electrically actuated pneumatic valves, and a plate defining a plurality of pneumatic apertures, wherein the header and the plurality of electrically actuated pneumatic valves are separately attached to the plate, such that each pneumatic aperture in the plate is placed in pneumatic communication with one of the plurality of pneumatic passageways of the header and one of the electrically actuated pneumatic valves.Type: GrantFiled: February 20, 2015Date of Patent: April 18, 2017Assignees: Baxter International Inc., Baxter Healthcare SAInventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Publication number: 20150165108Abstract: A medical fluid pneumatic manifold system includes a plurality of pump and valve chambers for controlling a flow of medical fluid, a header including a plurality of pneumatic passageways, each passageway in pneumatic communication with one of the pump or valve chambers, a plurality of electrically actuated pneumatic valves, and a plate defining a plurality of pneumatic apertures, wherein the header and the plurality of electrically actuated pneumatic valves are separately attached to the plate, such that each pneumatic aperture in the plate is placed in pneumatic communication with one of the plurality of pneumatic passageways of the header and one of the electrically actuated pneumatic valves.Type: ApplicationFiled: February 20, 2015Publication date: June 18, 2015Inventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Patent number: 8998836Abstract: A method of pneumatically operating a dialysis system includes (i) pumping air in a first valve state from a pneumatic pump to operate a component of the dialysis system, and (ii) recirculating air in a second valve state by pumping air from an outlet of the pneumatic pump to an inlet of the pneumatic pump to minimize at least one of a noise pitch or noise amplitude when switching from the second valve state to the first valve state.Type: GrantFiled: June 17, 2013Date of Patent: April 7, 2015Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Patent number: 8961444Abstract: A dialysis fluid pressure manifold system includes a plurality of pump and valve chambers controlling a flow of dialysis fluid; a header including a plurality of pneumatic passageways, each passageway in pneumatic communication with one of the pump or valve chambers; a plurality of electrically actuated pneumatic valves; and a plate defining a plurality of pneumatic apertures, each pneumatic aperture in pneumatic communication with one of the plurality of electrically actuated pneumatic valves, the plate providing the apertures each with an o-ring seal for airtight connection with the pneumatic passageways of the header.Type: GrantFiled: June 17, 2013Date of Patent: February 24, 2015Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Patent number: 8636706Abstract: Transfer sets are disclosed in the present patent. The transfer set provides a connection between a source of peritoneal dialysis fluid and a patient for whom peritoneal dialysis has been prescribed. The transfer sets disclosed herein are smaller and provide a more compact and convenient device by which a dialysis patient controls the flow of dialysis fluid to and from the peritoneum of the patient. The devices are more compact and convenient because they include more convenient mechanisms for starting and stopping flow of the dialysis fluid. It is also easy to determine whether the mechanism is in a closed or open configuration by simply looking at the mechanism.Type: GrantFiled: January 11, 2013Date of Patent: January 28, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Paul R. Chapman, Brian J. Connell, Ying-Cheng Lo
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Publication number: 20130277306Abstract: A method of pneumatically operating a dialysis system includes (i) pumping air in a first valve state from a pneumatic pump to operate a component of the dialysis system, and (ii) recirculating air in a second valve state by pumping air from an outlet of the pneumatic pump to an inlet of the pneumatic pump to minimize at least one of a noise pitch or noise amplitude when switching from the second valve state to the first valve state.Type: ApplicationFiled: June 17, 2013Publication date: October 24, 2013Inventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Publication number: 20130269801Abstract: A dialysis fluid pressure manifold system includes a plurality of pump and valve chambers controlling a flow of dialysis fluid; a header including a plurality of pneumatic passageways, each passageway in pneumatic communication with one of the pump or valve chambers; a plurality of electrically actuated pneumatic valves; and a plate defining a plurality of pneumatic apertures, each pneumatic aperture in pneumatic communication with one of the plurality of electrically actuated pneumatic valves, the plate providing the apertures each with an o-ring seal for airtight connection with the pneumatic passageways of the header.Type: ApplicationFiled: June 17, 2013Publication date: October 17, 2013Inventors: Paul R. Chapman, Robert W. Childers, Gideon Hecht, Anders Wellings
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Patent number: 8377012Abstract: Transfer sets are disclosed in the present patent. The transfer set provides a connection between a source of peritoneal dialysis fluid and a patient for whom peritoneal dialysis has been prescribed. The transfer sets disclosed herein are smaller and provide a more compact and convenient device by which a dialysis patient controls the flow of dialysis fluid to and from the peritoneum of the patient. The devices are more compact and convenient because they include more convenient mechanisms for starting and stopping flow of the dialysis fluid. It is also easy to determine whether the mechanism is in a closed or open configuration by simply looking at the mechanism.Type: GrantFiled: January 29, 2010Date of Patent: February 19, 2013Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Paul R. Chapman, Brian J. Connell, Ying-Cheng Lo
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Publication number: 20100198138Abstract: Transfer sets are disclosed in the present patent. The transfer set provides a connection between a source of peritoneal dialysis fluid and a patient for whom peritoneal dialysis has been prescribed. The transfer sets disclosed herein are smaller and provide a more compact and convenient device by which a dialysis patient controls the flow of dialysis fluid to and from the peritoneum of the patient. The devices are more compact and convenient because they include more convenient mechanisms for starting and stopping flow of the dialysis fluid. It is also easy to determine whether the mechanism is in a closed or open configuration by simply looking at the mechanism.Type: ApplicationFiled: January 29, 2010Publication date: August 5, 2010Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.Inventors: Paul R. Chapman, Brian J. Connell, Ying-Cheng Lo