Patents by Inventor Robert Childers

Robert Childers 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).

  • Patent number: 10463778
    Abstract: A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump; a venous line; and a heartbeat evaluation system including (i) a first electrode coupled to the arterial line or to a patient, (ii) a second electrode coupled to the venous line, (iii) electronic circuitry communicating electrically with the first electrode and the second electrode to sense an electrical heartbeat signal generated by the patient, and (iv) signal processing configured to use the sensed heartbeat signal to calculate at least one of (a) heart rate, (b) respiration, (c) stroke volume, (d) cardiac output, or (e) central blood volume.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 5, 2019
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 10137235
    Abstract: An embodiment of a peritoneal dialysis system includes an enclosure, a door hingedly attached to the enclosure, a stepper motor housed by the enclosure, a solid pump piston in operable communication with the stepper motor and including a solid pump shaft attached to or integrally formed with a solid pump head, and a disposable unit contacting the enclosure and the door. The disposable unit includes a moveable membrane operable with the solid pump head. The stepper motor is configured to move the solid pump head towards and away from the disposable unit. The system further includes a position detection apparatus operable with the stepper motor and located to provide an output indicative of a position of the solid pump head relative to a reference position.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: November 27, 2018
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Don Busby, Peter Hopping, Robert Childers, Shahid Din, Brian Lauman, Rick Kienman, Ian Richardson, Joseph H. Bowman, Jr., Loren M. Lundtveit, Jose Alvaro, Bruce Ming-Da Eu, Sherwin Shang
  • Publication number: 20180185564
    Abstract: A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump; a venous line; and a heartbeat evaluation system including (i) a first electrode coupled to the arterial line or to a patient, (ii) a second electrode coupled to the venous line, (iii) electronic circuitry communicating electrically with the first electrode and the second electrode to sense an electrical heartbeat signal generated by the patient, and (iv) signal processing configured to use the sensed heartbeat signal to calculate at least one of (a) heart rate, (b) respiration, (c) stroke volume, (d) cardiac output, or (e) central blood volume.
    Type: Application
    Filed: May 27, 2016
    Publication date: July 5, 2018
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 9950105
    Abstract: A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump, the arterial line including an arterial needle; a venous line including a venous needle; and a blood leak detection device including (i) at least one electrical component, (ii) a member configured to secure the at least one electrical component onto a patient's arm adjacent to patient access of at least one of the arterial and venous needles, the at least one electrical component capable of sensing the presence of a blood leak, and (iii) a controller in operable communication with the at least one electrical component, the controller programmed to allow for an amount of expected blood seepage and to cause an alarm if blood greater than the amount of expected blood seepage is sensed by the at least one electrical component.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 24, 2018
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Publication number: 20170340801
    Abstract: A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump; a venous line; and a heartbeat evaluation system including (i) a first electrode coupled to the arterial line or to a patient, (ii) a second electrode coupled to the venous line, (iii) electronic circuitry communicating electrically with the first electrode and the second electrode to sense an electrical heartbeat signal generated by the patient, and (iv) signal processing configured to use the sensed heartbeat signal to calculate at least one of (a) heart rate, (b) respiration, (c) stroke volume, (d) cardiac output, or (e) central blood volume.
    Type: Application
    Filed: May 27, 2016
    Publication date: November 30, 2017
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 9775939
    Abstract: A peritoneal dialysis machine including a membrane pump and a touch screen display that includes a mode-indicating portion and an operation-descriptive portion, the mode-indicating portion having a plurality of touch sensitive indicia each indicating one of a plurality of modes in which the machine can operate, the display being used to keep a patient continually informed of which one mode of at least three operating modes the machine is operating in, as the operation-descriptive portion changes to display details of a specific operation being carried out within the one mode, the indicia for each of the three operating modes always being visible to the patient while the machine is operating, the operating mode being selected by the patient touching one of the indicia on the screen.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: October 3, 2017
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Andrea (Krensky) Britton, Donald Busby, Eric Callahan, Robert Childers, Peter Hopping, Seyed Khorashahi, William Reese, Randall Sharo, Debra Toczko, Li Yue
  • Patent number: 9585993
    Abstract: A method of performing peritoneal dialysis includes: (i) locating a supply of fresh dialysis fluid above a patient's peritoneal cavity; (ii) locating a drain or a drain container below the patient's peritoneal cavity; (iii) connecting a supply line to the supply of fresh dialysis fluid and the patient's peritoneal cavity; (iv) connecting a drain line to the patient's peritoneal cavity and the drain or drain container; (v) pneumatically opening a supply line valve during a fill cycle; (vi) gravity filling the patient's peritoneal cavity with the supply line valve open during the fill cycle; (vii) pneumatically opening a drain line valve during a drain cycle; and (viii) draining the patient's peritoneal cavity with the drain line valve open during the drain cycle.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: March 7, 2017
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Robert Childers, Scott Keeling, Li Pan
  • Patent number: 9511180
    Abstract: A peritoneal dialysis system includes: an enclosure including an actuation surface and a door; a stepper motor housed by the enclosure; a pump head and a solid pump piston structurally linking the pump head to the stepper motor; and a disposable unit accepted by the enclosure, the disposable unit including a flexible membrane attached to a rigid piece, the actuation surface of the enclosure and the disposable unit so configured and arranged that when the stepper motor turns and consequently translates the solid pump piston and the pump head towards the door, the pump head physically contacts and stretches the membrane from a relaxed position to a stretched position, and when the stepper motor turns and consequently translates the solid pump piston and the pump head away from the door, the membrane follows the pump head and transitions from the stretched position to the relaxed position.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: December 6, 2016
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Andrea (Krensky) Britton, Donald Busby, Eric Callahan, Robert Childers, Peter Hopping, Seyed Khorashahi, William Reese, Randall Sharo, Debra Toczko, Li Yue
  • Publication number: 20160271317
    Abstract: A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump, the arterial line including an arterial needle; a venous line including a venous needle; and a blood leak detection device including (i) at least one electrical component, (ii) a member configured to secure the at least one electrical component onto a patient's arm adjacent to patient access of at least one of the arterial and venous needles, the at least one electrical component capable of sensing the presence of a blood leak, and (iii) a controller in operable communication with the at least one electrical component, the controller programmed to allow for an amount of expected blood seepage and to cause an alarm if blood greater than the amount of expected blood seepage is sensed by the at least one electrical component.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 9352078
    Abstract: An access disconnection system includes a venous line, an arterial line, a first electrode coupled to (i) the arterial line, (ii) a patient, or (iii) a cardiac catheter assembly; and a second electrode coupled to (i) the venous line, or (ii) the cardiac catheter assembly. The access disconnection system further includes electronic circuitry communicating electrically with the first second electrode to sense an electrical heartbeat signal generated by the patient. The electronic circuitry is configured to send a disconnection output indicative of a change in the electrical signal sufficient to expect that an access disconnection of the venous line has occurred.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: May 31, 2016
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 9138528
    Abstract: An access disconnection system includes a blood treatment machine including a housing, an access site detection housing separate from the blood treatment machine housing, a transmitter positioned in the access site housing and configured to transmit an ultrasound wave into a blood stream of a patient, a receiver positioned in the access site housing and configured to receive a reflection of the ultrasound wave from the blood stream of the patient; and electronic circuitry in communication with the transmitter and the receiver. The electronic circuitry is supported by the access site detection housing, and the transmitter is configured to send a wireless disconnection output to the blood treatment machine. The disconnection output is indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of the arterial line and the venous line has occurred.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: September 22, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 9089654
    Abstract: An access disconnection system includes: an arterial line; a venous line; a transmitter configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; and electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: July 28, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Publication number: 20150088054
    Abstract: An embodiment of a peritoneal dialysis system includes an enclosure, a door hingedly attached to the enclosure, a stepper motor housed by the enclosure, a solid pump piston in operable communication with the stepper motor and including a solid pump shaft attached to or integrally formed with a solid pump head, and a disposable unit contacting the enclosure and the door. The disposable unit includes a moveable membrane operable with the solid pump head. The stepper motor is configured to move the solid pump head towards and away from the disposable unit. The system further includes a position detection apparatus operable with the stepper motor and located to provide an output indicative of a position of the solid pump head relative to a reference position.
    Type: Application
    Filed: December 12, 2014
    Publication date: March 26, 2015
    Inventors: Don Busby, Peter Hopping, Robert Childers, Shahid Din, Brian Lauman, Rick Kienman, Ian Richardson, Joseph H. Bowman, JR., Loren M. Lundtveit, Jose Alvaro, Bruce Ming-Da Eu, Sherwin Shang
  • Publication number: 20150080782
    Abstract: An access disconnection system includes a venous line, an arterial line, a first electrode coupled to (i) the arterial line, (ii) a patient, or (iii) a cardiac catheter assembly; and a second electrode coupled to (i) the venous line, or (ii) the cardiac catheter assembly. The access disconnection system further includes electronic circuitry communicating electrically with the first second electrode to sense an electrical heartbeat signal generated by the patient. The electronic circuitry is configured to send a disconnection output indicative of a change in the electrical signal sufficient to expect that an access disconnection of the venous line has occurred.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 8920355
    Abstract: An access disconnection method includes supporting a transmitter including a wireless communication apparatus, a receiver, a portion of an arterial line, a portion of a venous line and electronic circuitry by a member separate from a blood treatment machine. The method further includes operably communicating the electronic circuitry with the transmitter and the receiver, enabling transmission of a wave from the transmitter in one of the arterial and venous lines, enabling receipt of the wave by the receiver in the other of the arterial and venous lines, and enabling a disconnection output to be sent to the blood treatment machine via the electronic circuitry. The disconnection output is indicative of a change in the wave received by the receiver from the transmitter sufficient to expect that an access site disconnection of one of the arterial and venous lines has occurred.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: December 30, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Publication number: 20140330193
    Abstract: An access disconnection system includes: an arterial line; a venous line; a transmitter configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; and electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred.
    Type: Application
    Filed: July 16, 2014
    Publication date: November 6, 2014
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 8795217
    Abstract: An access disconnection system includes: an arterial line; a venous line; a transmitter configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; and electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: August 5, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Patent number: 8798284
    Abstract: A medical instrument includes a sound card or an internal capability for generating sounds from a digital music or sound file. The medical instrument is one which generates unwanted noise and is constantly in the presence of a patient or an operator, and may be in a home, a clinic, a laboratory, or other intimate setting. For instance, a patient may be typically connected for hours to a hemodialysis machine that has a noisy pump. A blood-plasma volunteer may be hooked to a noisy blood separation machine for a period of time. A laboratory technician may work in close proximity to a sample preparation machine that constantly gurgles and whirrs. In each instance, a sound card and a speaker can generate previously-recorded masking noises that make that the presence and operation of the machine more tolerable.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: August 5, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Jason Cartwright, David Howard, Robert Childers, John Niedospial
  • Publication number: 20140088484
    Abstract: An access disconnection system includes a blood treatment machine including a housing, an access site detection housing separate from the blood treatment machine housing, a transmitter positioned in the access site housing and configured to transmit an ultrasound wave into a blood stream of a patient, a receiver positioned in the access site housing and configured to receive a reflection of the ultrasound wave from the blood stream of the patient; and electronic circuitry in communication with the transmitter and the receiver. The electronic circuitry is supported by the access site detection housing, and the transmitter is configured to send a wireless disconnection output to the blood treatment machine. The disconnection output is indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of the arterial line and the venous line has occurred.
    Type: Application
    Filed: December 4, 2013
    Publication date: March 27, 2014
    Applicants: Baxter International, Inc.
    Inventors: Rodolfo Roger, Robert Childers, Thomas D. Kelly
  • Publication number: 20140074018
    Abstract: A method of performing peritoneal dialysis includes: (i) locating a supply of fresh dialysis fluid above a patient's peritoneal cavity; (ii) locating a drain or a drain container below the patient's peritoneal cavity; (iii) connecting a supply line to the supply of fresh dialysis fluid and the patient's peritoneal cavity; (iv) connecting a drain line to the patient's peritoneal cavity and the drain or drain container; (v) pneumatically opening a supply line valve during a fill cycle; (vi) gravity filling the patient's peritoneal cavity with the supply line valve open during the fill cycle; (vii) pneumatically opening a drain line valve during a drain cycle; and (viii) draining the patient's peritoneal cavity with the drain line valve open during the drain cycle.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 13, 2014
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Robert Childers, Scott Keeling, Li Pan