Patents Assigned to Confluent Surgical, Inc.
  • Patent number: 10309430
    Abstract: An actuator assembly is provided. The actuator assembly includes housing configured for operable engagement by a user, a trigger assembly operably supported on the housing, a gas cartridge releasably secured to the housing, a valve assembly mounted within the housing for controlling the flow of pressurized gas through the housing and a cylinder actuator operably operably connected to the valve assembly. The cylinder actuator includes a piston selectively extendable therefrom configured for depressing a plunger. The piston includes a head having an inlet surface disposed within an inlet chamber of the cylinder actuator and an outlet surface disposed within the outlet chamber of the cylinder actuator. The exposed surface area of the first surface is equal to the exposed surface of the second surface.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: June 4, 2019
    Assignee: Confluent Surgical, Inc.
    Inventor: Les Hull
  • Patent number: 10092280
    Abstract: A spray assembly for dispensing a mixture is provided. The spray assembly includes a connector configured for operable engagement with a first and second source of component and a source of pressurized fluid, and a tip operably connected to the connector. The tip includes an opening and defines a mixing chamber between the connector and the opening of the tip, and an insert member configured to be received in the mixing chamber. The insert member includes a plurality of radially extending slots on at least one end of the insert. The plurality of radially extending slots is configured to mix the first and second components prior to the mixture exiting the opening in the tip.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: October 9, 2018
    Assignee: Confluent Surgical, Inc.
    Inventors: Les Hull, Jason Fortier
  • Patent number: 9700290
    Abstract: A spray assembly for dispensing a mixture is provided. The spray assembly includes a connector configured for operable engagement with a first and second source of component and a source of pressurized fluid, and a tip operably connected to the connector. The tip includes an opening and defines a mixing chamber between the connector and the opening of the tip, and an insert member configured to be received in the mixing chamber. The insert member includes a plurality of radially extending slots on at least one end of the insert. The plurality of radially extending slots is configured to mix the first and second components prior to the mixture exiting the opening in the tip.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: July 11, 2017
    Assignee: Confluent Surgical, Inc.
    Inventors: Les Hull, Jason Fortier
  • Patent number: 9517478
    Abstract: A spray assembly for dispensing a mixture is provided. The spray assembly includes a connector configured for operable engagement with a first and second source of component and a source of pressurized fluid, and a tip operably connected to the connector. The tip includes an opening and defines a mixing chamber between the connector and the opening of the tip, and an insert member configured to be received in the mixing chamber. The insert member includes a plurality of radially extending slots on at least one end of the insert. The plurality of radially extending slots is configured to mix the first and second components prior to the mixture exiting the opening in the tip.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: December 13, 2016
    Assignee: Confluent Surgical, Inc.
    Inventors: Les Hull, Jason Fortier
  • Patent number: 9445795
    Abstract: The present disclosure provides treatment of an apparatus, in embodiments a delivery device, which prevents premature gelling of any materials or precursor(s) of a pH dependent forming material, in embodiments a hydrogel, dispensed by the delivery device. The pH microenvironment near the surface of a lumen of the device, in embodiments the tip of a spray applicator through which the material to be dispensed is expelled from the device, may be controlled to prevent premature gelling.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: September 20, 2016
    Assignee: Confluent Surgical, Inc.
    Inventors: Rachit Ohri, Phillip Blaskovich
  • Patent number: 9101946
    Abstract: A spray assembly for dispensing a mixture is provided. The spray assembly includes a connector configured for operable engagement with a first and second source of component and a source of pressurized fluid, and a tip operably connected to the connector. The tip includes an opening and defines a mixing chamber between the connector and the opening of the tip, and an insert member configured to be received in the mixing chamber. The insert member includes a plurality of radially extending slots on at least one end of the insert. The plurality of radially extending slots is configured to mix the first and second components prior to the mixture exiting the opening in the tip.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: August 11, 2015
    Assignee: Confluent Surgical, Inc.
    Inventors: Les Hull, Jason Fortier
  • Patent number: 8973596
    Abstract: A manifold for use with an applicator assembly is provided. The manifold includes a base having at least a first proximal extension and a distal extension. The at least first proximal extension includes an outer flange and an inner flange and defines a recess therebetween. The manifold further includes at least a first connection member securely affixed to the first proximal extension. The first connection member includes an annular flange configured to be received within the recess of the at least first proximal extension and the annular flange defines a proximal cavity. The manifold further includes at least a first seal member received within the proximal cavity between the first proximal extension and the first connection member. The seal member is configured to permit flow through the manifold in a first direction and obstruct flow through the manifold in a second direction.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: March 10, 2015
    Assignee: Confluent Surgical, Inc.
    Inventor: Les Hull
  • Patent number: 8932618
    Abstract: The present disclosure relates to a drug delivery device including a biodegradable housing and a hydrogel within the biodegradable housing. The housing, the hydrogel, or both, may include a bioactive agent. Also disclosed is a method of drug delivery including the steps of forming the biodegradable housing, in embodiments a hydrogel, suspending a bioactive agent in the hydrogel, and introducing a second hydrogel and/or precursors of a second hydrogel into the biodegradable housing.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: January 13, 2015
    Assignee: Confluent Surgical, Inc.
    Inventors: Phillip D. Blaskovich, Rachit Ohri, Steven L. Bennett
  • Patent number: 8889889
    Abstract: Crosslinked polymers, methods for their preparation and use, are described in which the crosslinked polymers are formed from at least two polymer precursors, one of which is designed, upon degradation of the crosslinked polymer, to release the second polymer precursor in its original, unmodified chemical form.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: November 18, 2014
    Assignee: Confluent Surgical, Inc.
    Inventors: Rachit Ohri, Phillip Blaskovich, Joshua Kennedy, Steven L. Bennett, Arthur Driscoll
  • Patent number: 8888749
    Abstract: Certain embodiments relate to a sprayer or other medical apparatus for applying a biocompatible coating in situ. Such an apparatus may have a first conduit connected to a first exit opening and a second conduit connected to a second exit opening to deliver a first composition through the first conduit and a second composition through the second conduit to mix the first composition and the second composition outside both the first conduit and the second conduit. The first composition may be, e.g., a precursor to a material formed after the mixing of the first composition and the second composition. The first exit opening and the second exit opening may be approximately adjacent to each other and define an angle that is less than about 140 degrees.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: November 18, 2014
    Assignee: Confluent Surgical, Inc.
    Inventors: Patrick Kenneth Campbell, Arthur J. Driscoll, Tom Guest
  • Patent number: 8876021
    Abstract: An applicator assembly for mixing at least a first and second component is provided. The applicator assembly includes a manifold configured for operable engagement with at least a first and second source of component, the manifold including at least a first and second component channel therethrough, an elongated shaft extending distally from the manifold, the elongated shaft including at least a first and second component lumen extending the length thereof, the at least first and second component channels in fluid communication with the at least first and second component channels, a tip assembly defining a first chamber, an intermediate chamber and a final chamber.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: November 4, 2014
    Assignee: Confluent Surgical, Inc.
    Inventors: Jason Fortier, Les Hull, Art Driscoll
  • Publication number: 20140110505
    Abstract: A spray assembly for dispensing a mixture is provided. The spray assembly includes a connector configured for operable engagement with a first and second source of component and a source of pressurized fluid, and a tip operably connected to the connector. The tip includes an opening and defines a mixing chamber between the connector and the opening of the tip, and an insert member configured to be received in the mixing chamber. The insert member includes a plurality of radially extending slots on at least one end of the insert. The plurality of radially extending slots is configured to mix the first and second components prior to the mixture exiting the opening in the tip.
    Type: Application
    Filed: December 30, 2013
    Publication date: April 24, 2014
    Applicant: Confluent Surgical, Inc.
    Inventors: Les Hull, Jason Fortier
  • Publication number: 20140079790
    Abstract: A microsphere and methods for forming the same are disclosed. The microsphere includes modified cellulose and at least one of precursors for is-situ polymerization or endothermic/exothermic reactions.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 20, 2014
    Applicant: Confluent Surgical, Inc.
    Inventors: Phillip D. Blaskovich, Clifford J. Herman, Gary A. Nichols, Rachit Ohri, Lan Pham
  • Publication number: 20140041375
    Abstract: An actuator assembly is provided. The actuator assembly includes housing configured for operable engagement by a user, a trigger assembly operably supported on the housing, a gas cartridge releasably secured to the housing, a valve assembly mounted within the housing for controlling the flow of pressurized gas through the housing and a cylinder actuator operably operably connected to the valve assembly. The cylinder actuator includes a piston selectively extendable therefrom configured for depressing a plunger. The piston includes a head having an inlet surface disposed within an inlet chamber of the cylinder actuator and an outlet surface disposed within the outlet chamber of the cylinder actuator. The exposed surface area of the first surface is equal to the exposed surface of the second surface.
    Type: Application
    Filed: June 20, 2013
    Publication date: February 13, 2014
    Applicant: Confluent Surgical, Inc.
    Inventor: Les Hull
  • Publication number: 20140010755
    Abstract: A microsphere and method for forming the same are disclosed. The microsphere includes modified cellulose and at least one of a visualization agent, a magnetic material, or a radioactive material.
    Type: Application
    Filed: September 12, 2013
    Publication date: January 9, 2014
    Applicant: Confluent Surgical, Inc.
    Inventors: Rachit Ohri, Phillip D. Blaskovich, Olga Cherniavsky
  • Publication number: 20140005378
    Abstract: A process for dissolving modified cellulose includes contacting modified cellulose solution with at least one multivalent cation to form a plurality of modified cellulose particles.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 2, 2014
    Applicants: Covidien LP, Confluent Surgical, Inc.
    Inventors: Phillip Blaskovich, Valentino Tramontano, Rachit Ohri, Daniel S. Costa, Joshua Kennedy, Sajida Farooqi
  • Publication number: 20140005376
    Abstract: A process for dissolving modified cellulose includes contacting modified cellulose solution with at least one non-solvent to form a plurality of modified cellulose particles.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 2, 2014
    Applicants: Covidien LP, Confluent Surgical, Inc.
    Inventors: Valentino Tramontano, Phillip Blaskovich, Rachit Ohri, Daniel S. Costa, Joshua Kennedy, Sajida Farooqi
  • Publication number: 20140005375
    Abstract: A process for dissolving modified cellulose includes contacting modified cellulose with a solvent in a mixture to form swelled modified cellulose and then contacting the mixture with a salt to dissolve the swelled modified cellulose. The dissolved modified cellulose is used to form at least one of a predictably degrading coating, film, or a fiber.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 2, 2014
    Applicants: Covidien LP, Confluent Surgical, Inc.
    Inventors: Valentino Tramontano, Phillip Blaskovich, Rachit Ohri, Joshua Kennedy, Sajida Farooqi
  • Publication number: 20140005377
    Abstract: A process for dissolving modified cellulose includes contacting modified cellulose solution with at least one neutralizing agent to form a plurality of modified cellulose particles.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 2, 2014
    Applicants: Covidien LP, Confluent Surgical, Inc.
    Inventors: Valentino Tramontano, Phillip Blaskovich, Rachit Ohri, Daniel S. Costa, Joshua Kennedy, Sajida Farooqi
  • Publication number: 20130323315
    Abstract: A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 5, 2013
    Applicant: Confluent Surgical, Inc.
    Inventors: Philip Blaskovich, Valentino Tramontano, Joshua Kennedy, Rachit Ohri, Lan Pham