Patents by Inventor William W. Han

William W. Han 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: 8986243
    Abstract: Peritoneal dialysis connectors, connector sets, connector systems and methods are disclosed. In an embodiment, a connector includes, a body, a spike located at a first end of the body, a sealing ring sized to seal inside a female connector and located adjacent to the spike end, threads located adjacent to the sealing ring, and at least one barbed ring located adjacent to the threads at a second end of the body. The at least one barbed ring is configured to seal the second end of the body to a tube.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: March 24, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Sobue Katsuyoshi, William R. Griswold, William W. Han, Andrew Steinhaus, Hiroshi Oishi
  • Patent number: 8419933
    Abstract: A dialysis system includes a first fluid heater, a second fluid heater, a supplemental power source and a logic implementer. The logic implementer is configured to use the supplemental power source such that when the first and second heaters are powered simultaneously, a collective current draw does not exceed a maximum allowable current draw of a branch power source powering the system.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 16, 2013
    Assignees: Baxter International, Inc., Baxter Healthcare S.A.
    Inventors: Justin Rohde, William W. Han
  • Publication number: 20120248039
    Abstract: A dialysis system includes a first fluid heater, a second fluid heater, a supplemental power source and a logic implementer.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Justin Rohde, William W. Han
  • Publication number: 20120209168
    Abstract: Peritoneal dialysis connectors, connector sets, connector systems and methods are disclosed. In an embodiment, a connector includes, a body, a spike located at a first end of the body, a sealing ring sized to seal inside a female connector and located adjacent to the spike end, threads located adjacent to the sealing ring, and at least one barbed ring located adjacent to the threads at a second end of the body. The at least one barbed ring is configured to seal the second end of the body to a tube.
    Type: Application
    Filed: March 15, 2012
    Publication date: August 16, 2012
    Applicants: BAXTER HEALTHCARE S.A., BAXTER INTERNATIONAL, INC.
    Inventors: Sobue Katsuyoshi, William R. Griswold, William W. Han, Andrew Steinhaus, Hiroshi Oishi
  • Patent number: 8216452
    Abstract: A dialysis system includes a first fluid heater, a second fluid heater, a supplemental power source and a logic implementer. The logic implementer is configured to use the supplemental power source such that when the first and second heaters are powered simultaneously, a collective current draw does not exceed a maximum allowable current draw of a branch power source powering the system.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: July 10, 2012
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Justin Rohde, William W. Han
  • Patent number: 8206578
    Abstract: A dialysis system includes: a water purification unit; a dialysate generation unit configured to use water purified by the water purification unit; a dialysate delivery unit configured to deliver dialysate prepared by the dialysate generation unit; a supplemental power source; and electronic circuitry including: (i) a first electrical connection configured to electrically connect a branch power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit, and (ii) a second electrical connection configured to electrically connect a supplemental power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: June 26, 2012
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Justin Rohde, William W. Han
  • Publication number: 20110315614
    Abstract: A dialysis system includes: a water purification unit; a dialysate generation unit configured to use water purified by the water purification unit; a dialysate delivery unit configured to deliver dialysate prepared by the dialysate generation unit; a supplemental power source; and electronic circuitry including: (i) a first electrical connection configured to electrically connect a branch power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit, and (ii) a second electrical connection configured to electrically connect a supplemental power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit.
    Type: Application
    Filed: September 1, 2011
    Publication date: December 29, 2011
    Applicants: BAXTER HEALTHCARE S.A., BAXTER INTERNATIONAL INC.
    Inventors: Justin Rohde, William W. Han
  • Patent number: 8034235
    Abstract: A dialysis system includes: a water purification unit; a dialysate generation unit configured to use water purified by the water purification unit; a dialysate delivery unit configured to deliver dialysate prepared by the dialysate generation unit; a supplemental power source; a first electrical connection configured to electrically connect a branch power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit; and a second electrical connection configured to electrically connect the supplemental power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: October 11, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Justin Rohde, William W. Han
  • Publication number: 20110132841
    Abstract: A dialysis system includes a first fluid heater, a second fluid heater, a supplemental power source and a logic implementer.
    Type: Application
    Filed: February 18, 2011
    Publication date: June 9, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Justin Rohde, William W. Han
  • Patent number: 7892423
    Abstract: A dialysis system includes a first fluid heater, a second fluid heater, and a logic implementer configured to synchronize the duty cycles of the first and second heaters so that (i) power is not supplied to the first heater when power is supplied to the second heater and (ii) power is not supplied to the second heater when power is supplied to the first heater.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: February 22, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Justin Rohde, William W. Han
  • Publication number: 20100051552
    Abstract: A system for monitoring water quality for dialysis, dialysis fluids, and body fluids treated by dialysis fluids, is disclosed. The system uses microelectromechanical systems (MEMS) sensors for detecting impurities in input water or dialysis fluid, and in the prepared dialysate. These sensors may also be used to monitor and check the blood of the patient being treated. These sensors include ion-selective sensors, for ions such as ammonium or calcium, and also include amperometric array sensors, suitable for ions from chlorine or chloramines, e.g., chloride. These sensors assist in the monitoring of water supplies from a city water main or well. The sensors may be used in conjunction with systems for preparing dialysate solutions from water for use at home or elsewhere.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 4, 2010
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Justin B. Rohde, William W. Han, Elizabeth A. Everitt, Michael E. Hogard, Ying-Cheng Lo, Erin M. Copeland, William P. Burns
  • Publication number: 20090206023
    Abstract: A dialysis system includes: a water purification unit; a dialysate generation unit configured to use water purified by the water purification unit; a dialysate delivery unit configured to deliver dialysate prepared by the dialysate generation unit; a supplemental power source; a first electrical connection configured to electrically connect a branch power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit; and a second electrical connection configured to electrically connect the supplemental power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 20, 2009
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Justin Rohde, William W. Han
  • Publication number: 20090206017
    Abstract: A dialysis system includes a first fluid heater, a second fluid heater, and a logic implementer configured to synchronize the duty cycles of the first and second heaters so that (i) power is not supplied to the first heater when power is supplied to the second heater and (ii) power is not supplied to the second heater when power is supplied to the first heater.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 20, 2009
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Justin Rohde, William W. Han