Patents by Inventor Lawrence Farhat
Lawrence Farhat 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).
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Patent number: 11896796Abstract: A retrograde disposable intravenous (IV) set is disclosed. The IV set includes a diverter housing between upper and lower portions of a fluid line, the diverter housing including a lower end and an upper end extending away from the lower end and the fluid line to a syringe port located in the upper end, and a diverter member within the diverter housing and configured to move within the diverter housing from a first position, at which a first opening through the diverter member forms a first fluid pathway between the upper portion and the lower portion of the fluid line, to a second position, at which the first fluid pathway is blocked and a second fluid pathway is formed between the upper portion of the fluid line and a syringe port. Retrograde infusion may occur when the diverter member is in the second position.Type: GrantFiled: April 24, 2020Date of Patent: February 13, 2024Assignee: CareFusion 303, Inc.Inventors: Robert Vasko, Stephen J. Bollish, Lawrence Farhat, Daniel Abal, Robert Dwaine Butterfield
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Patent number: 11392781Abstract: Inductive identification systems and methods are described. The system may include an inductive detector configured to identify objects having inductive identifiers. An inductive detector may include conductive coils and inductance readout circuitry for measuring an inductance of each coil. An inductive identifier may include a conductive pattern configured to induce a desired inductance in the coils of the inductive detector. An inductive identifier may include a film having openings, each opening configured to be disposed over a corresponding coil to induce differing inductance changes in the corresponding coils. A pattern of inductance values may be determined and used to identify the object. The detector may be implemented in a cassette recess of an infusion pump system. The inductive identifier may be disposed on a pump cassette configured to be received in the cassette recess and identified based on an inductive interaction between the inductive detector coils and the inductive identifier.Type: GrantFiled: October 24, 2019Date of Patent: July 19, 2022Assignee: CAREFUSION 303, INC.Inventors: Mooneer Thabet Salem, Lawrence Farhat
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Publication number: 20220142800Abstract: A stent delivery system can include a core member, first and second restraints, and a stent engagement component. The core member can have a distal segment. The first and second restraints can be coupled to the core member distal segment and axially spaced apart from each other to provide an axial gap. The first and second restraints can each have an outer profile that tapers radially inwardly in directions away from the gap. The stent engagement component can be at least partially disposed in the axial gap between the first and second restraints such that the component is slidably and rotatably coupled to the core member distal segment.Type: ApplicationFiled: January 20, 2022Publication date: May 12, 2022Inventors: Kenneth Brown, Ghislain Sema, Michael Losordo, Evan Epstein, Gabriel Newell, Andy Huynh, Lawrence Farhat
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Patent number: 11259946Abstract: A stent delivery system can include a core member, first and second restraints, and a stent engagement component. The core member can have a distal segment. The first and second restraints can be coupled to the core member distal segment and axially spaced apart from each other to provide an axial gap. The first and second restraints can each have an outer profile that tapers radially inwardly in directions away from the gap. The stent engagement component can be at least partially disposed in the axial gap between the first and second restraints such that the component is slidably and rotatably coupled to the core member distal segment.Type: GrantFiled: December 3, 2019Date of Patent: March 1, 2022Assignee: COVIDIEN LPInventors: Kenneth Brown, Ghislain Sema, Michael Losordo, Evan Epstein, Gabriel Newell, Andy Huynh, Lawrence Farhat
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Publication number: 20210338923Abstract: Systems and methods of micro-infusion of medical fluids are disclosed. Micro-infusion systems may include a pump, a patient interface, tubing between the pump and the interface, and a micro-infusion device along the tubing. A first portion of the tubing above the micro-infusion device is longer than a second portion of the tubing below the device. The micro-infusion device may include a chamber in-line with the tubing, a first valve between the chamber and the first portion of the tubing, a second valve between the chamber and the second portion of the tubing and a third valve between the chamber and a dump chamber. The second valve may be slidably disposed within the chamber. A medical fluid may be provided into the chamber that slides the second valve displacing another fluid in the chamber through the third valve into the dump chamber.Type: ApplicationFiled: July 19, 2021Publication date: November 4, 2021Inventors: Edward BROWKA, James FENTRESS, Lawrence FARHAT, Robert VASKO, Theodore MOSLER, David FOSHEE, George MANSOUR
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Patent number: 11103635Abstract: Systems and methods of micro-infusion of medical fluids are disclosed. Micro-infusion systems may include a pump, a patient interface, tubing between the pump and the interface, and a micro-infusion device along the tubing. A first portion of the tubing above the micro-infusion device is longer than a second portion of the tubing below the device. The micro-infusion device may include a chamber in-line with the tubing, a first valve between the chamber and the first portion of the tubing, a second valve between the chamber and the second portion of the tubing and a third valve between the chamber and a dump chamber. The second valve may be slidably disposed within the chamber. A medical fluid may be provided into the chamber that slides the second valve displacing another fluid in the chamber through the third valve into the dump chamber.Type: GrantFiled: April 24, 2019Date of Patent: August 31, 2021Assignee: CAREFUSION 303, INC.Inventors: Edward Browka, James Fentress, Lawrence Farhat, Robert Vasko, Theodore Mosler, David Foshee, George Mansour
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Patent number: 11076972Abstract: A stent delivery system can include a core member, an introducer sheath, and a microcatheter. The core member can have a distal segment. The stent engagement member can have a generally tubular body positioned about the core member distal segment and can be rotatably coupled to the core member. The engagement member can include an inner layer that has a first durometer and an outer layer that has a second durometer less than the first durometer. The stent can extend along the core member distal segment such that an inner surface of the stent is engaged by the engagement member outer layer for facilitating rotation of the stent relative to the core member.Type: GrantFiled: July 11, 2018Date of Patent: August 3, 2021Assignee: COVIDIEN LPInventors: Ashok Nageswaran, Michael Losordo, Gabriel Newell, Lawrence Farhat
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Publication number: 20200254233Abstract: A retrograde disposable intravenous (IV) set is disclosed. The IV set includes a diverter housing between upper and lower portions of a fluid line, the diverter housing including a lower end and an upper end extending away from the lower end and the fluid line to a syringe port located in the upper end, and a diverter member within the diverter housing and configured to move within the diverter housing from a first position, at which a first opening through the diverter member forms a first fluid pathway between the upper portion and the lower portion of the fluid line, to a second position, at which the first fluid pathway is blocked and a second fluid pathway is formed between the upper portion of the fluid line and a syringe port. Retrograde infusion may occur when the diverter member is in the second position.Type: ApplicationFiled: April 24, 2020Publication date: August 13, 2020Inventors: Robert VASKO, Stephen J. BOLLISH, Lawrence FARHAT, Daniel ABAL, Robert Dwaine BUTTERFIELD
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Patent number: 10632299Abstract: Systems and methods are provided for intermittent microinfusion. A system may include a pump and an IV set that includes a y-port valve disposed below a pump interface portion of the IV tubing. The y-port valve may include an internal valve member that allows fluid to flow from the pump to a patient when no syringe is attached to the y-port. The internal valve member may be moved by the attachment of a syringe containing the medication to be infused to the y-port such that the fluid pathway from the pump to the patient is blocked and fluid from the syringe can be injected into the IV tubing between the y-port valve and the pump. The pump may retrograde pump the medication into the tubing via the y-port valve and then forward pump the medication to the patient when the syringe is removed from the y-port.Type: GrantFiled: December 29, 2016Date of Patent: April 28, 2020Assignee: CareFusion 303, Inc.Inventors: Robert Vasko, Stephen J. Bollish, Lawrence Farhat, Daniel Abal, Robert Dwaine Butterfield
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Publication number: 20200100924Abstract: A stent delivery system can include a core member, first and second restraints, and a stent engagement component. The core member can have a distal segment. The first and second restraints can be coupled to the core member distal segment and axially spaced apart from each other to provide an axial gap. The first and second restraints can each have an outer profile that tapers radially inwardly in directions away from the gap. The stent engagement component can be at least partially disposed in the axial gap between the first and second restraints such that the component is slidably and rotatably coupled to the core member distal segment.Type: ApplicationFiled: December 3, 2019Publication date: April 2, 2020Inventors: Kenneth Brown, Ghislain Sema, Michael Losordo, Evan Epstein, Gabriel Newell, Andy Huynh, Lawrence Farhat
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Publication number: 20200057874Abstract: Inductive identification systems and methods are described. The system may include an inductive detector configured to identify objects having inductive identifiers. An inductive detector may include conductive coils and inductance readout circuitry for measuring an inductance of each coil. An inductive identifier may include a conductive pattern configured to induce a desired inductance in the coils of the inductive detector. An inductive identifier may include a film having openings, each opening configured to be disposed over a corresponding coil to induce differing inductance changes in the corresponding coils. A pattern of inductance values may be determined and used to identify the object. The detector may be implemented in a cassette recess of an infusion pump system. The inductive identifier may be disposed on a pump cassette configured to be received in the cassette recess and identified based on an inductive interaction between the inductive detector coils and the inductive identifier.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Inventors: Mooneer Thabet SALEM, Lawrence FARHAT
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Patent number: 10537452Abstract: A stent delivery system can include a core member, first and second restraints, and a stent engagement component. The core member can have a distal segment. The first and second restraints can be coupled to the core member distal segment and axially spaced apart from each other to provide an axial gap. The first and second restraints can each have an outer profile that tapers radially inwardly in directions away from the gap. The stent engagement component can be at least partially disposed in the axial gap between the first and second restraints such that the component is slidably and rotatably coupled to the core member distal segment.Type: GrantFiled: July 18, 2017Date of Patent: January 21, 2020Assignee: COVIDIEN LPInventors: Kenneth Brown, Ghislain Sema, Michael Losordo, Evan Epstein, Gabriel Newell, Andy Huynh, Lawrence Farhat
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Publication number: 20190357925Abstract: A system can comprise a catheter and a device having an elongate member and an expandable member. The expandable member can be coupled to the elongate member. The elongate member can extend through the catheter. The expandable member can be positioned with a proximal member end proximal to a distal catheter end, a distal member end positioned distal to the distal catheter end, and at least a portion of the expandable member between the distal catheter end and the distal member end in an expanded state in which a maximum transverse dimension of the expandable member is larger than a maximum transverse dimension of the distal member end. The catheter can be advanced in a patient's body with the expandable structure, in the expanded state, at the distal end of the catheter.Type: ApplicationFiled: August 7, 2019Publication date: November 28, 2019Inventors: Lawrence Farhat, Andy Huynh
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Patent number: 10489617Abstract: Inductive identification systems and methods are described. The system may include an inductive detector configured to identify objects having inductive identifiers. An inductive detector may include conductive coils and inductance readout circuitry for measuring an inductance of each coil. An inductive identifier may include a conductive pattern configured to induce a desired inductance in the coils of the inductive detector. An inductive identifier may include a film having openings, each opening configured to be disposed over a corresponding coil to induce differing inductance changes in the corresponding coils. A pattern of inductance values may be determined and used to identify the object. The detector may be implemented in a cassette recess of an infusion pump system. The inductive identifier may be disposed on a pump cassette configured to be received in the cassette recess and identified based on an inductive interaction between the inductive detector coils and the inductive identifier.Type: GrantFiled: July 28, 2015Date of Patent: November 26, 2019Assignee: CAREFUSION 303, INC.Inventors: Mooneer Thabet Salem, Lawrence Farhat
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Patent number: 10413309Abstract: A system can comprise a catheter and a device having an elongate member and an expandable member. The expandable member can be coupled to the elongate member. The elongate member can extend through the catheter. The expandable member can be positioned with a proximal member end proximal to a distal catheter end, a distal member end positioned distal to the distal catheter end, and at least a portion of the expandable member between the distal catheter end and the distal member end in an expanded state in which a maximum transverse dimension of the expandable member is larger than a maximum transverse dimension of the distal member end. The catheter can be advanced in a patient's body with the expandable structure, in the expanded state, at the distal end of the catheter.Type: GrantFiled: July 20, 2017Date of Patent: September 17, 2019Assignee: Covidien LPInventors: Lawrence Farhat, Andy Huynh
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Publication number: 20190247570Abstract: Systems and methods of micro-infusion of medical fluids are disclosed. Micro-infusion systems may include a pump, a patient interface, tubing between the pump and the interface, and a micro-infusion device along the tubing. A first portion of the tubing above the micro-infusion device is longer than a second portion of the tubing below the device. The micro-infusion device may include a chamber in-line with the tubing, a first valve between the chamber and the first portion of the tubing, a second valve between the chamber and the second portion of the tubing and a third valve between the chamber and a dump chamber. The second valve may be slidably disposed within the chamber. A medical fluid may be provided into the chamber that slides the second valve displacing another fluid in the chamber through the third valve into the dump chamber.Type: ApplicationFiled: April 24, 2019Publication date: August 15, 2019Inventors: Edward BROWKA, James FENTRESS, Lawrence FARHAT, Robert VASKO, Theodore MOSLER, David FOSHEE, George MANSOUR
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Patent number: 10314966Abstract: Systems and methods of micro-infusion of medical fluids are disclosed. Micro-infusion systems may include a pump, a patient interface, tubing between the pump and the interface, and a micro-infusion device along the tubing. A first portion of the tubing above the micro-infusion device is longer than a second portion of the tubing below the device. The micro-infusion device may include a chamber in-line with the tubing, a first valve between the chamber and the first portion of the tubing, a second valve between the chamber and the second portion of the tubing and a third valve between the chamber and a dump chamber. The second valve may be slidably disposed within the chamber. A medical fluid may be provided into the chamber that slides the second valve displacing another fluid in the chamber through the third valve into the dump chamber.Type: GrantFiled: January 24, 2017Date of Patent: June 11, 2019Assignee: CAREFUSION 303, INC.Inventors: Edward Browka, James Fentress, Lawrence Farhat, Robert Vasko, Theodore Mosler, David Foshee, George Mansour
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Patent number: 10265207Abstract: A stent delivery system can include a core member, a stent, and a stent engagement member. The engagement member can be positioned along a distal segment of the core member and be coupled to the core member. The engagement member can have an outer surface. The stent can extending along the core member distal segment such that the outer surface of the engagement member engages an inner surface of the stent along at least a portion of only a distal half of the stent for transmitting an axial force from the core member to only the stent distal half of the stent.Type: GrantFiled: September 27, 2013Date of Patent: April 23, 2019Assignee: COVIDIEN LPInventors: Hieu Luong, Garrett Johnson, Aaron Barrett, Gabriel Newell, Andy Huynh, Lawrence Farhat
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Publication number: 20180318118Abstract: A stent delivery system can include a core member, an introducer sheath, and a microcatheter. The core member can have a distal segment. The stent engagement member can have a generally tubular body positioned about the core member distal segment and can be rotatably coupled to the core member. The engagement member can include an inner layer that has a first durometer and an outer layer that has a second durometer less than the first durometer. The stent can extend along the core member distal segment such that an inner surface of the stent is engaged by the engagement member outer layer for facilitating rotation of the stent relative to the core member.Type: ApplicationFiled: July 11, 2018Publication date: November 8, 2018Inventors: Ashok Nageswaran, Michael Losordo, Gabriel Newell, Lawrence Farhat
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Patent number: 10045867Abstract: A stent delivery system can include a core member, a stent engagement member, and a stent. The core member can have a distal segment. The stent engagement member can have a generally tubular body positioned about the core member distal segment and can be rotatably coupled to the core member. The engagement member can include an inner layer that has a first durometer and an outer layer that has a second durometer less than the first durometer. The stent can extend along the core member distal segment such that an inner surface of the stent is engaged by the engagement member outer layer for facilitating rotation of the stent relative to the core member.Type: GrantFiled: September 27, 2013Date of Patent: August 14, 2018Assignee: COVIDIEN LPInventors: Ashok Nageswaran, Michael Losordo, Gabriel Newell, Lawrence Farhat