Patents by Inventor Michael E. Hogard

Michael E. Hogard 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).

  • Publication number: 20210322656
    Abstract: A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Michael E. Hogard, Donald D. Busby, Robert W. Childers, Yuanpang Samuel Ding, Katherine M. Holian, Mark E. Jablonski, Thomas D. Kelly, Shincy J. Maliekkal, Rodolfo G. Roger, Donald A. Smith, Atif M. Yardimci, Ying-Cheng Lo
  • Patent number: 11052180
    Abstract: A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: July 6, 2021
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Michael E. Hogard, Donald D. Busby, Robert W. Childers, Yuanpang Samuel Ding, Katherine M. Holian, Mark E. Jablonski, Thomas D. Kelly, Shincy J. Maliekkal, Rodolfo G. Roger, Donald A. Smith, Atif M. Yardimci, Ying-Cheng Lo
  • Publication number: 20200276378
    Abstract: A blood treatment air purging system and method includes a level detector positioned and arranged to detect a low fluid level in a blood circuit indicating a high amount of air in the blood circuit; a blood pump operable with the blood circuit; a venous patient line of the blood circuit; and at least one blood circuit air vent valve, wherein the system and method are configured or programmed to (i) stop the blood pump, (ii) close the venous patient line, and (iii) open the at least one blood circuit air vent valve to atmosphere or a container when the low fluid level is detected, and (iv) run the blood pump to meter air through the at least one blood circuit air vent valve to atmosphere or the container.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Patent number: 10653826
    Abstract: Dialysis systems that remove air from a blood circuit are disclosed herein. In an embodiment, a dialysis system includes a dialysis fluid circuit, a blood circuit including an arterial line, a venous line, and an enclosure in fluid communication with the venous line, the enclosure configured to release air through a hydrophobic vent for priming the blood circuit, a blood pump configured to pump fluid through at least the arterial line, a first valve operable with the arterial line and a second valve operable with the venous line, and a pumping and valving algorithm operated after priming to remove air from the blood circuit to control the first and second valves and the blood pump to replace priming fluid with blood from a patient.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: May 19, 2020
    Assignees: Baxter International Inc., Bazter Healthcare SA
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Patent number: 10391228
    Abstract: A hemodialysis system configured to purge air from a blood circuit comprises a dialyzer; a dialysis fluid circuit operable with the dialyzer via dialysis fluid inlet and outlet lines, the dialysis fluid circuit including a fresh dialysis fluid pump, and a used dialysis fluid pump; the blood circuit operable with the dialyzer and including an arterial line, a venous line, a blood pump operable with the arterial line upstream of the dialyzer, a physiologically acceptable fluid source in fluid communication with the arterial line upstream of the blood pump, a drip chamber located along the venous line, and a container for accepting air purged from the blood circuit; and an air purging scheme wherein, with the dialysis fluid inlet and outlet lines connected to the dialyzer, the blood pump pumps a fluid through the dialyzer and into the drip chamber, forcing air from the drip chamber into the container.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 27, 2019
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE SA
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Publication number: 20190167887
    Abstract: A hemodialysis system configured to purge air from a blood circuit comprises a dialyzer; a dialysis fluid circuit operable with the dialyzer via dialysis fluid inlet and outlet lines, the dialysis fluid circuit including a fresh dialysis fluid pump, and a used dialysis fluid pump; the blood circuit operable with the dialyzer and including an arterial line, a venous line, a blood pump operable with the arterial line upstream of the dialyzer, a physiologically acceptable fluid source in fluid communication with the arterial line upstream of the blood pump, a drip chamber located along the venous line, and a container for accepting air purged from the blood circuit; and an air purging scheme wherein, with the dialysis fluid inlet and outlet lines connected to the dialyzer, the blood pump pumps a fluid through the dialyzer and into the drip chamber, forcing air from the drip chamber into the container.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Publication number: 20180036472
    Abstract: Dialysis systems that remove air from a blood circuit are disclosed herein. In an embodiment, a dialysis system includes a dialysis fluid circuit, a blood circuit including an arterial line, a venous line, and an enclosure in fluid communication with the venous line, the enclosure configured to release air through a hydrophobic vent for priming the blood circuit, a blood pump configured to pump fluid through at least the arterial line, a first valve operable with the arterial line and a second valve operable with the venous line, and a pumping and valving algorithm operated after priming to remove air from the blood circuit to control the first and second valves and the blood pump to replace priming fluid with blood from a patient.
    Type: Application
    Filed: October 20, 2017
    Publication date: February 8, 2018
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Patent number: 9795731
    Abstract: An air purging method includes: (a) detecting a low fluid level in a blood circuit indicating a high amount of air in the blood circuit; (b) stopping a blood pump; (c) closing a venous patient line; (d) opening a blood circuit air vent valve and a drain valve; and (e) running the blood pump to meter air through the air vent valve and the drain valve to a drain.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: October 24, 2017
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Patent number: 9415150
    Abstract: A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: August 16, 2016
    Assignee: Baxter Healthcare S.A.
    Inventors: Michael E. Hogard, Donald D. Busby, Robert W. Childers, Yuanpang S. Ding, Katherine M. Holian, Mark E. Jablonski, Thomas D. Kelly, Ying-Cheng Lo, Shincy J. Maliekkal, Rodolfo G. Roger, Donald A. Smith, Atif M. Yardimci
  • Publication number: 20150258263
    Abstract: A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
    Type: Application
    Filed: March 30, 2015
    Publication date: September 17, 2015
    Inventors: Michael E. Hogard, Donald D. Busby, Robert W. Childers, Yuanpang Samuel Ding, Katherine M. Holian, Mark E. Jablonski, Thomas D. Kelly, Shincy J. Maliekkal, Rodolfo G. Roger, Donald A. Smith, Atif M. Yardimci, Ying-Cheng Lo
  • Patent number: 8992463
    Abstract: A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: March 31, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Michael E. Hogard, Donald D. Busby, Robert W. Childers, Yuanpang Samuel Ding, Katherine M. Holian, Mark E. Jablonski, Thomas D. Kelly, Ying-Cheng Lo, Shincy J. Maliekkal, Rodolfo G. Roger, Donald A. Smith, Atif M. Yardimci
  • Publication number: 20140338756
    Abstract: An air purging method includes: (a) detecting a low fluid level in a blood circuit indicating a high amount of air in the blood circuit; (b) stopping a blood pump; (c) closing a venous patient line; (d) opening a blood circuit air vent valve and a drain valve; and (e) running the blood pump to meter air through the air vent valve and the drain valve to a drain.
    Type: Application
    Filed: July 30, 2014
    Publication date: November 20, 2014
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Patent number: 8834403
    Abstract: An air purging method includes: (a) detecting a low fluid level in a blood circuit indicating a high amount of air in the blood circuit; (b) stopping a blood pump; (c) closing a venous patient line; (d) opening a blood circuit air vent valve and a drain valve; and (e) running the blood pump to meter air through the air vent valve and the drain valve to a drain.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: September 16, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Publication number: 20140021111
    Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.
    Type: Application
    Filed: September 26, 2013
    Publication date: January 23, 2014
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Rodolfo G. Roger, Michael E. Hogard, Thomas D. Kelly
  • Patent number: 8562822
    Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: October 22, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Rodolfo G. Roger, Michael E. Hogard, Thomas D. Kelly
  • Patent number: 8562823
    Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: October 22, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Rodolfo G. Roger, Michael E. Hogard, Thomas D. Kelly
  • Publication number: 20130248449
    Abstract: An air purging method includes: (a) detecting a low fluid level in a blood circuit indicating a high amount of air in the blood circuit; (b) stopping a blood pump; (c) closing a venous patient line; (d) opening a blood circuit air vent valve and a drain valve; and (e) running the blood pump to meter air through the air vent valve and the drain valve to a drain.
    Type: Application
    Filed: May 14, 2013
    Publication date: September 26, 2013
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Publication number: 20130228517
    Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 5, 2013
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Rodolfo G. Roger, Michael E. Hogard, Thomas D. Kelly
  • Publication number: 20130231607
    Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 5, 2013
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Rodolfo G. Roger, Michael E. Hogard, Thomas D. Kelly
  • Patent number: 8496809
    Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: July 30, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Rodolfo G. Roger, Michael E. Hogard, Thomas D. Kelly