Patents by Inventor Michael R. Prisco

Michael R. Prisco 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: 8522839
    Abstract: Adapters are provided for establishing fluid communication between an anesthetic agent container and an anesthetic vaporizer having a fluid port. The adapter may be mountable on the vaporizer to cooperate with the spout of an anesthetic agent container or may be mountable on an anesthetic agent container to cooperate with the fluid port of an anesthetic vaporizer to provide a sealing and/or retaining relationship therebetween.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: September 3, 2013
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Simon Freed, Michael R. Prisco, Eric Hyman, Raymond D. Clark, Alan W. Marttila, John DePiano, Richard P. Meyst, Timothy B. Meluch, David Chesley, Roy T. Henderson
  • Patent number: 8221529
    Abstract: In an embodiment, a dialysis fluid cassette is disclosed. The cassette includes a plurality of walls defining at least one valve chamber, a dialysis fluid inlet, a dialysis fluid outlet and a dialysis fluid pathway. The cassette further includes a baffle extending from a first one of the walls to an opposing second one of the walls. The baffle includes an end fixed to a third one of the plurality of walls and a free end. The fixed end separates the dialysis fluid inlet from the dialysis fluid outlet and the baffle and the plurality of walls are constructed and arranged such that the flow of dialysis fluid along the pathway defined in part by the baffle slows as the flow approaches the free end of the baffle.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: July 17, 2012
    Assignees: Baxter International, Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Donald D. Busby, Michael E. Hogard, Michael R. Prisco, Atif M. Yardimci, James C. Laird
  • Publication number: 20120065581
    Abstract: In an embodiment, a dialysis fluid cassette is disclosed. The cassette includes a plurality of walls defining at least one valve chamber, a dialysis fluid inlet, a dialysis fluid outlet and a dialysis fluid pathway. The cassette further includes a baffle extending from a first one of the walls to an opposing second one of the walls. The baffle includes an end fixed to a third one of the plurality of walls and a free end. The fixed end separates the dialysis fluid inlet from the dialysis fluid outlet and the baffle and the plurality of walls are constructed and arranged such that the flow of dialysis fluid along the pathway defined in part by the baffle slows as the flow approaches the free end of the baffle.
    Type: Application
    Filed: November 21, 2011
    Publication date: March 15, 2012
    Applicants: BAXTER HEALTHCARE S.A., BAXTER INTERNATIONAL INC.
    Inventors: Robert W. Childers, Donald D. Busby, Michael E. Hogard, Michael R. Prisco, Atif M. Yardimci, James C. Laird
  • Patent number: 8080091
    Abstract: A dialysis fluid system includes an instrument including a pump actuator and a fluid heater, and a dialysis fluid cassette. The dialysis fluid cassette includes a rigid portion defining a pumping section for operation with the pump actuator and a heating section for operation with the fluid heater. The heating section includes a dialysis fluid inlet, a dialysis fluid outlet, and a dialysis fluid heating area located between the fluid inlet and the fluid outlet, the heating section further includes an air separation chamber for collecting air separated from the dialysis fluid.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: December 20, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Donald D. Busby, Michael E. Hogard, Michael R. Prisco, Atif M. Yardimci, James C. Laird
  • Patent number: 8025714
    Abstract: A dialysis system includes a dialysis fluid disposable configured to hold and transport a dialysis fluid; an air separation chamber in fluid communication with the dialysis fluid disposable; and a dialysis instrument operable to pump dialysis fluid through the dialysis fluid disposable, the instrument including a vibrator configured to vibrate the air separation chamber to separate air from the dialysis fluid traveling through the chamber.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: September 27, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Michael R. Prisco, Atif M. Yardimci, Serhan Acikgoz, James C. Laird, Shincy J. Maliekkal, Justin B. Rohde
  • Patent number: 8025716
    Abstract: A medical fluid delivery system includes a fluid disposable configured to hold and transport a medical fluid and an air separation chamber in fluid communication with the fluid disposable. The air separation chamber includes at least one fluid baffle floating within the air separation chamber and configured to separate air from medical fluid traveling through the chamber.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 27, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Michael R. Prisco, Atif M. Yardimci, Serhan Acikgoz, James C. Laird, Shincy J. Maliekkal, Justin B. Rohde
  • Publication number: 20110144557
    Abstract: A dialysis fluid system includes an instrument including a pump actuator and a fluid heater, and a dialysis fluid cassette. The dialysis fluid cassette includes a rigid portion defining a pumping section for operation with the pump actuator and a heating section for operation with the fluid heater. The heating section includes a dialysis fluid inlet, a dialysis fluid outlet, and a dialysis fluid heating area located between the fluid inlet and the fluid outlet, the heating section further includes an air separation chamber for collecting air separated from the dialysis fluid.
    Type: Application
    Filed: February 18, 2011
    Publication date: June 16, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Robert W. Childers, Donald D. Busby, Michael E. Hogard, Michael R. Prisco, Atif M. Yardimci, James C. Laird
  • Publication number: 20110137237
    Abstract: A dialysis system includes a dialysis fluid disposable configured to hold and transport a dialysis fluid; an air separation chamber in fluid communication with the dialysis fluid disposable; and a dialysis instrument operable to pump dialysis fluid through the dialysis fluid disposable, the instrument including a vibrator configured to vibrate the air separation chamber to separate air from the dialysis fluid traveling through the chamber.
    Type: Application
    Filed: February 15, 2011
    Publication date: June 9, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Michael R. Prisco, Atif M. Yardimci, Serhan Acikgoz, James C. Laird, Shincy J. Maliekkal, Justin B. Rohde
  • Publication number: 20110137236
    Abstract: A medical fluid delivery system includes a fluid disposable configured to hold and transport a medical fluid and an air separation chamber in fluid communication with the fluid disposable. The air separation chamber includes at least one fluid baffle floating within the air separation chamber and configured to separate air from medical fluid traveling through the chamber.
    Type: Application
    Filed: February 18, 2011
    Publication date: June 9, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Michael R. Prisco, Atif M. Yardimci, Serhan Acikgoz, James C. Laird, Shincy J. Maliekkal, Justin B. Rohde
  • Patent number: 7892331
    Abstract: A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including a first sidewall and a second sidewall, a first fluid opening, a second fluid opening, and a separation wall extending from the first sidewall to the second sidewall, the separation wall having a free edge residing within the air separation chamber, the separation wall forcing the dialysis fluid to flow from one of the fluid openings around the free edge of the separation wall to the other of the openings.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: February 22, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Donald D. Busby, Michael E. Hogard, Michael R. Prisco, Atif M. Yardimci, James C. Laird
  • Patent number: 7892332
    Abstract: A dialysis fluid cassette includes a rigid portion defining first and second valve chambers, the rigid portion further defining an air separation chamber in fluid communication with the first and second valve chambers, the air separation chamber including a baffle and structured such that when the cassette is placed in a dialysis instrument, (i) the baffle extends upwardly from a bottom of the air separation chamber and (ii) first and second openings to the air separation chamber, communicating fluidly and respectively with the first and second valve chambers, are located near the bottom of the air separation chamber, such that the dialysis fluid is forced up one side of the baffle and down the other side of the baffle when flowing through the air separation chamber.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: February 22, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Michael R. Prisco, Atif M. Yardimci, Serhan Acikgoz, James C. Laird, Shincy J. Maliekkal, Justin B. Rohde
  • Patent number: 7731689
    Abstract: A medical fluid machine includes (i) a pump that pumps a medical fluid and (ii) a heater that heats the medical fluid, the heater including an electrically insulative housing, at least one flat sheet of electrically conductive material suitable for contacting the medical fluid, the sheet disposed within the insulative housing, the sheet defining a flow path for the medical fluid in which the medical fluid changes direction at least one time, a primary coil of a transformer located outside the insulative housing, the primary coil configured to induce a current into the at least one conductive sheet, creating heat that may be transferred to the medical fluid.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: June 8, 2010
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Michael R. Prisco, Yuanpang S. Ding, Tan-Cheng Chou, Tom Johnson
  • Patent number: 7534348
    Abstract: Flow-through systems for processing biological fluid are disclosed. The flow-through systems include a removal device in the flow path for removing unwanted compounds and agents. The removal device includes a removal media contained within a housing made of two separate portions sealed together. The housing is maintained in a substantially vertical disposition, thereby ensuring substantially uniform and complete exposure of the fluid to the media.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: May 19, 2009
    Assignee: Fenwal, Inc.
    Inventors: Douglas W. Reitz, Scott Ariagno, Mihir Sheth, Atif Yardimci, Robert A. Clarke, David W. Pennington, Michael R. Prisco, Edwin Chim, Robin Pauley, Craig Sandford, Arch Sites
  • Publication number: 20090084718
    Abstract: A dialysis fluid cassette includes a rigid portion defining first and second valve chambers, the rigid portion further defining an air separation chamber in fluid communication with the first and second valve chambers, the air separation chamber including a baffle and structured such that when the cassette is placed in a dialysis instrument, (i) the baffle extends upwardly from a bottom of the air separation chamber and (ii) first and second openings to the air separation chamber, communicating fluidly and respectively with the first and second valve chambers, are located near the bottom of the air separation chamber, such that the dialysis fluid is forced up one side of the baffle and down the other side of the baffle when flowing through the air separation chamber.
    Type: Application
    Filed: October 1, 2007
    Publication date: April 2, 2009
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Michael R. Prisco, Atif M. Yardimci, Serhan Acikgoz, James C. Laird, Shincy J. Maliekkal, Justin B. Rohde
  • Publication number: 20090084719
    Abstract: A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including a first sidewall and a second sidewall, a first fluid opening, a second fluid opening, and a separation wall extending from the first sidewall to the second sidewall, the separation wall having a free edge residing within the air separation chamber, the separation wall forcing the dialysis fluid to flow from one of the fluid openings around the free edge of the separation wall to the other of the openings.
    Type: Application
    Filed: October 1, 2007
    Publication date: April 2, 2009
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Robert W. Childers, Donald D. Busby, Michael E. Hogard, Michael R. Prisco, Atif M. Yardimci, James C. Laird
  • Publication number: 20080200866
    Abstract: A medical fluid machine includes (i) a pump that pumps a medical fluid and (ii) a heater that heats the medical fluid, the heater including an electrically insulative housing, at least one flat sheet of electrically conductive material suitable for contacting the medical fluid, the sheet disposed within the insulative housing, the sheet defining a flow path for the medical fluid in which the medical fluid changes direction at least one time, a primary coil of a transformer located outside the insulative housing, the primary coil configured to induce a current into the at least one conductive sheet, creating heat that may be transferred to the medical fluid.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 21, 2008
    Applicant: Baxter International Inc.
    Inventors: Michael R. Prisco, Yuanpang S. Ding, Tan-Cheng Chou, Tom Johnson
  • Patent number: 7021148
    Abstract: The present invention lessens the amount of air entering between mating membranes of a pressure sensor. The pressure sensor of the present invention includes a transducer portion and separate patient or medical fluid transfer portion or dome. The transducer portion is reusable and the dome is disposable. The dome defines a fluid flow chamber that is bounded on one side by a dome membrane. Likewise, the transducer is mounted inside a housing, wherein the housing defines a surface that holds a transducer membrane. The two membranes mate when the dome is fitted onto the transducer housing. The pressure sensor enhances the seal between the mated membranes by creating higher localized contact stresses. The pressure sensor also reduces the amount of gas that permeates from the fluid chamber across the dome membrane and between the interface by making the dome membrane from a material having a low vapor transmission.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: April 4, 2006
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: David Kuhn, Jason Cartwright, Ed Chim, Jan Jensen, Michael R. Prisco, Jerry Ripley
  • Patent number: 6712095
    Abstract: A vacuum demand valve for delivering a flowable material is disclosed. The valve has a housing having a proximal end, a distal end, an intermediate segment therebetween defining a passageway wherein the flowable substance can flow from the proximal end to the distal end. The housing can be a tubing. A valve member is located along the intermediate segment. The valve member has a closed condition wherein the flow of the flowable material from the proximal end to the distal end is stopped and an open condition wherein the flow of the flowable material from the proximal end to the distal end is unstopped. The valve member is biased in the closed condition and is responsive to a partial vacuum provided by the user through the passageway for placing the valve member in the open condition.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: March 30, 2004
    Assignee: Baxter International Inc.
    Inventors: Mark E. Williamson, Scott R. Ariagno, Alan W. Marttila, Arnold C. Bilstad, Paul M. DiPerna, Michael R. Prisco, David W. Pennington, Atif M. Yardimci, Sidney T. Smith, Mark C. Perry, Marc Bellotti
  • Patent number: 6672333
    Abstract: A vacuum demand valve for delivering a flowable material is disclosed. The valve has a housing having a proximal end, a distal end, an intermediate segment therebetween defining a passageway wherein the flowable substance can flow from the proximal end to the distal end. The housing can be a tubing. A valve member is located along the intermediate segment. The valve member has a closed condition wherein the flow of the flowable material from the proximal end to the distal end is stopped and an open condition wherein the flow of the flowable material from the proximal end to the distal end is unstopped. The valve member is biased in the closed condition and is responsive to a partial vacuum provided by the user through the passageway for placing the valve member in the open condition.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: January 6, 2004
    Assignee: Baxter International Inc.
    Inventors: Mark E. Williamson, Scott R. Ariagno, Alan W. Marttila, Arnold C. Bilstad, Paul M. DiPerna, Michael R. Prisco, David W. Pennington, Atif M. Yardimci, Sidney T. Smith, Mark C. Perry, Marc Bellotti
  • Publication number: 20030200812
    Abstract: The present invention lessens the amount of air entering between mating membranes of a pressure sensor. The pressure sensor of the present invention includes a transducer portion and separate patient or medical fluid transfer portion or dome. The transducer portion is reusable and the dome is disposable. The dome defines a fluid flow chamber that is bounded on one side by a dome membrane. Likewise, the transducer is mounted inside a housing, wherein the housing defines a surface that holds a transducer membrane. The two membranes mate when the dome is fitted onto the transducer housing. The pressure sensor enhances the seal between the mated membranes by creating higher localized contact stresses. The pressure sensor also reduces the amount of gas that permeates from the fluid chamber across the dome membrane and between the interface by making the dome membrane from a material having a low vapor transmission.
    Type: Application
    Filed: April 30, 2002
    Publication date: October 30, 2003
    Inventors: David Kuhn, Jason Cartwright, Ed Chim, Jan Jensen, Michael R. Prisco, Jerry Ripley