Patents by Inventor Edward S. Szpara

Edward S. Szpara 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: 20240228351
    Abstract: A peritoneal dialysis system includes a cycler comprising a control unit and a pump actuator. The peritoneal dialysis system also includes a disposable set operable with the cycler and in fluid communication with a source of water made suitable for peritoneal dialysis (“WFPD”) and a source of concentrate. The disposable set includes a pumping cassette comprising a pump chamber configured to be actuated by the pump actuator and a mixing container. The control unit is programmed to cause (i) the pump actuator to operate the pump chamber to pump a first amount of the WFPD to the mixing container, (ii) the pump actuator to operate the pump chamber to pump a prescribed amount of concentrate from the concentrate source to the mixing container, and (iii) the pump actuator to operate the pump chamber to pump a second amount of the WFPD to the mixing container.
    Type: Application
    Filed: March 21, 2024
    Publication date: July 11, 2024
    Inventors: Jane E. FITZGERALD, Ryan P. MARRY, John S. NORMAN, James D. ASCENZO, Meng-Yang CHEN, Anders WELLINGS, Edward S. SZPARA, Olof JANSSON
  • Patent number: 12030799
    Abstract: A peritoneal dialysis system includes a water purifier, a cycler, and a disposable set operable with the cycler. The disposable set includes a pumping cassette including a water inlet port, a heater/mixing container in fluid communication with the pumping cassette, a water accumulator, a first water line segment, and a second water line segment. The first water line segment is in fluid communication with the water inlet port and the water accumulator. Additionally, the second water line segment is in fluid communication with the water accumulator and the water purifier.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: July 9, 2024
    Assignee: Gambro Lundia AB
    Inventors: Edward S. Szpara, Olof Ekdahl, Olof Jansson
  • Patent number: 11939251
    Abstract: A peritoneal dialysis system includes a cycler including a pump actuator, a heater and a heating pan operable with the heater, and a disposable set operable with the cycler. The heating pan includes a sidewall forming a slot. The disposable set includes a pumping cassette and a heater/mixing container. The pumping cassette includes a pump chamber configured to be actuated by the pump actuator. Additionally, the heater/mixing container is in fluid communication with the pumping cassette and is sized to be received at the heating pan. The heater/mixing container includes a port configured such that when the port is slid into the slot of the heater pan sidewall, the port is prevented from rotating about an axis transverse to a direction of flow through the port.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: March 26, 2024
    Assignee: Gambro Lundia AB
    Inventors: Jane E. Fitzgerald, Ryan P. Marry, John S. Norman, James D. Ascenzo, Meng-Yang Chen, Anders Wellings, Edward S. Szpara, Olof Jansson
  • Patent number: 11730872
    Abstract: A medical fluid delivery system includes a source of purified water; a source of concentrate for mixing with water from the water source; a disposable set including a pumping portion, a water line in fluid communication with the source of purified water and the pumping portion, the water line including a filter for filtering the water, a concentrate line in fluid communication with the concentrate source and the pumping portion, and a heater/mixing container in fluid communication with the pumping portion; a medical fluid delivery machine including, a pump actuator operable with the pumping portion of the disposable set, and a heater/mixing pan configured to support the heater/mixing container; and at least one leveling foot positioned and arranged to enable the heater/mixing pan to be oriented in a desired position for mixing the concentrate and purified water. A leveling tray and leveling foot are provided additionally.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 22, 2023
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: John S. Norman, Edward S. Szpara, Anders Wellings
  • Publication number: 20210316056
    Abstract: A peritoneal dialysis system includes a water purifier, a cycler, and a disposable set operable with the cycler. The disposable set includes a pumping cassette including a water inlet port, a heater/mixing container in fluid communication with the pumping cassette, a water accumulator, a first water line segment, and a second water line segment. The first water line segment is in fluid communication with the water inlet port and the water accumulator. Additionally, the second water line segment is in fluid communication with the water accumulator and the water purifier.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Inventors: Edward S. Szpara, Olof Ekdahl, Olof Jansson
  • Publication number: 20210220539
    Abstract: A dialysis system includes a source of water; a concentrate for mixing with the water a disposable set including a pumping portion, a water line in fluid including a filter for filtering the water, a concentrate line in fluid communication with the source of water and the pumping portion; and a medical fluid delivery machine including a pump actuator operable with the pumping portion, a pressure sensor, and a control unit programmed to cause (i) the pump actuator to pump water to wet a membrane of the filter, thereafter remove at least some of the water from the filter, and pressurize a portion of the water line leading from the pumping portion to the filter, (ii) the pressure sensor to sense pressure in the pressurized portion of the water line, and (iii) an analysis of the sensed pressure to be performed to evaluate the integrity of the filter.
    Type: Application
    Filed: May 16, 2019
    Publication date: July 22, 2021
    Inventors: Anders WELLINGS, Edward S. SZPARA, Michael P. MORRISSEY
  • Patent number: 11045596
    Abstract: A peritoneal dialysis system includes a water purifier, a cycler, and a disposable set operable with the cycler. The disposable set includes a pumping cassette including a water inlet port, a heater/mixing container in fluid communication with the pumping cassette, a water accumulator, a first water line segment, and a second water line segment. The first water line segment is in fluid communication with the water inlet port and the water accumulator. Additionally, the second water line segment is in fluid communication with the water accumulator and the water purifier.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: June 29, 2021
    Assignee: Gambro Lundia AB
    Inventors: Edward S. Szpara, Olof Ekdahl, Olof Jansson
  • Publication number: 20210015987
    Abstract: A peritoneal dialysis system includes a cycler including a pump actuator, a heater and a heating pan operable with the heater, and a disposable set operable with the cycler. The heating pan includes a sidewall forming a slot. The disposable set includes a pumping cassette and a heater/mixing container. The pumping cassette includes a pump chamber configured to be actuated by the pump actuator. Additionally, the heater/mixing container is in fluid communication with the pumping cassette and is sized to be received at the heating pan. The heater/mixing container includes a port configured such that when the port is slid into the slot of the heater pan sidewall, the port is prevented from rotating about an axis transverse to a direction of flow through the port.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Inventors: Jane E. Fitzgerald, Ryan P. Marry, John S. Norman, James D. Ascenzo, Meng-Yang Chen, Anders Wellings, Edward S. Szpara, Olof Jansson
  • Patent number: 10828412
    Abstract: A peritoneal dialysis system includes a cycler including a pump actuator, a heater and a heating pan operable with the heater, and a disposable set operable with the cycler. The heating pan includes a sidewall forming a slot. The disposable set includes a pumping cassette and a heater/mixing container. The pumping cassette includes a pump chamber configured to be actuated by the pump actuator. Additionally, the heater/mixing container is in fluid communication with the pumping cassette and is sized to be received at the heating pan. The heater/mixing container includes a port configured such that when the port is slid into the slot of the heater pan sidewall, the port is prevented from rotating about an axis transverse to a direction of flow through the port.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: November 10, 2020
    Assignee: Gambro Lundia AB
    Inventors: Jane E. Fitzgerald, Ryan P. Marry, John S. Norman, James D. Ascenzo, Meng-Yang Chen, Anders Wellings, Edward S. Szpara, Olof Jansson
  • Publication number: 20190351123
    Abstract: A medical fluid connector includes a first port; a second port; a pivot located between the ports; a guide wall located between the first port and the pivot and positioned to reside adjacent to a first side of a wall of a structure supporting the connector when inserted into the structure; and a guide member located between the second port and the pivot and including a member wall positioned to reside adjacent to a second side of the wall of the structure supporting the connector when inserted into the structure, the guide member further including at least one member flange extending from the member wall, the member flange sized so as to provide room for a lid of the structure to close onto the member flange and rotate the connector about the pivot into a desired operating position. A dialysis system, disposable and method using the connector are also provided.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Inventors: John S. Norman, Edward S. Szpara, James D. Ascenzo
  • Publication number: 20190351124
    Abstract: A medical fluid delivery system includes a source of purified water; a source of concentrate for mixing with water from the water source; a disposable set including a pumping portion, a water line in fluid communication with the source of purified water and the pumping portion, the water line including a filter for filtering the water, a concentrate line in fluid communication with the concentrate source and the pumping portion, and a heater/mixing container in fluid communication with the pumping portion; a medical fluid delivery machine including, a pump actuator operable with the pumping portion of the disposable set, and a heater/mixing pan configured to support the heater/mixing container; and at least one leveling foot positioned and arranged to enable the heater/mixing pan to be oriented in a desired position for mixing the concentrate and purified water. A leveling tray and leveling foot are provided additionally.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 21, 2019
    Inventors: John S. Norman, Edward S. Szpara, Anders Wellings
  • Publication number: 20170319768
    Abstract: A peritoneal dialysis system includes a water purifier, a cycler, and a disposable set operable with the cycler. The disposable set includes a pumping cassette including a water inlet port, a heater/mixing container in fluid communication with the pumping cassette, a water accumulator, a first water line segment, and a second water line segment. The first water line segment is in fluid communication with the water inlet port and the water accumulator. Additionally, the second water line segment is in fluid communication with the water accumulator and the water purifier.
    Type: Application
    Filed: May 5, 2017
    Publication date: November 9, 2017
    Inventors: Edward S. Szpara, Olof Ekdahl, Olof Jansson
  • Publication number: 20170319770
    Abstract: A peritoneal dialysis system includes a cycler including a pump actuator, a heater and a heating pan operable with the heater, and a disposable set operable with the cycler. The heating pan includes a sidewall forming a slot. The disposable set includes a pumping cassette and a heater/mixing container. The pumping cassette includes a pump chamber configured to be actuated by the pump actuator. Additionally, the heater/mixing container is in fluid communication with the pumping cassette and is sized to be received at the heating pan. The heater/mixing container includes a port configured such that when the port is slid into the slot of the heater pan sidewall, the port is prevented from rotating about an axis transverse to a direction of flow through the port.
    Type: Application
    Filed: May 5, 2017
    Publication date: November 9, 2017
    Inventors: Jane E. Fitzgerald, Ryan P. Marry, John S. Norman, James D. Ascenzo, Meng-Yang Chen, Anders Wellings, Edward S. Szpara, Olof Jansson