Patents by Inventor Julian V. Chan

Julian V. Chan 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: 8602259
    Abstract: A flexible pouch and valve assembly is provided for aseptically storing a substance, dispensing multiple portions of the stored substance therefrom, and maintaining substance remaining in the pouch in an aseptic condition sealed with respect to ambient atmosphere. The flexible pouch and valve assembly are receivable within a relatively rigid housing, and are adapted to cooperate with a pump for pumping discrete portions of substance from the pouch and through the one-way valve to dispense the substance therefrom. The assembly comprises a flexible pouch defining therein a variable-volume storage chamber sealed with respect to the ambient atmosphere for aseptically storing therein multiple portions of the substance. A one-way valve of the assembly includes a valve body defining an axially-extending valve seat and at least one flow aperture extending through the valve body and/or the valve seat.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: December 10, 2013
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan, Benoit Adamo, Nathaniel Houle
  • Patent number: 8556123
    Abstract: A device for storing and dispensing a substance includes a container having a body defining therein a storage chamber for receiving and storing the substance. The container includes a head located at one end of the body and a first passageway that is in fluid communication with the storage chamber of the body and defines a flow path therebetween. The container also includes a pierceable wall located on an opposite side of the passageway relative to the storage chamber, and a first connecting portion for connecting another component thereto. The device also includes a one-way valve assembly that includes a valve body including a body base defining a second passageway and at least one piercing portion engageable with the pierceable wall of the container. The valve assembly includes a second connecting portion connectable to the first connecting portion of the container for fixedly securing the valve assembly to the container.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: October 15, 2013
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan, Giovanni Rodriguez
  • Publication number: 20130175298
    Abstract: A dispenser for dispensing a substance, such as a liquid lipstick or other cosmetic, pharmaceutical or cosmeceutical product, has a body with a variable-volume storage chamber for storing the product. A dispensing portion is connected with the body and a one-way valve for dispensing amounts of product therethrough. The dispensing portion defines a compression chamber in fluid communication with the storage chamber for receiving product therefrom, and an outlet aperture coupled in fluid communication with the compression chamber. The one-way valve has a valve seat, and a visco-elastic valve cover seated on the valve seat and defining a normally-closed, axially-extending seam therebetween forming a fluid-tight seal between the valve cover and valve seat. The flexible valve cover is movable relative to the valve seat, and the seam is connectable in fluid communication with the outlet aperture to allow the passage of product through the seam and out of the dispenser.
    Type: Application
    Filed: August 10, 2012
    Publication date: July 11, 2013
    Inventors: Daniel Py, Julian V. Chan, Giovanni Rodriguez
  • Publication number: 20130153598
    Abstract: A dispenser is provided for the delivery of controlled, metered amounts of any of numerous different substances to humans or animals, such as medicaments, pharmaceuticals, cosmetics, and food products, or to deliver materials that may react upon exposure to air, such as glue. Means are provided in the dispenser to effect controlled delivery of a pre-determined amount of the substance contained in the dispenser. A one-way valve is provided to hermetically seal the portion of the dispenser containing the substance to be dispensed.
    Type: Application
    Filed: July 17, 2012
    Publication date: June 20, 2013
    Inventors: Daniel Py, Norbert M. Assion, Julian V. Chan
  • Publication number: 20130015210
    Abstract: A flexible pouch and valve assembly is provided for aseptically storing a substance, dispensing multiple portions of the stored substance therefrom, and maintaining substance remaining in the pouch in an aseptic condition sealed with respect to ambient atmosphere. The flexible pouch and valve assembly are receivable within a relatively rigid housing, and are adapted to cooperate with a pump for pumping discrete portions of substance from the pouch and through the one-way valve to dispense the substance therefrom. The assembly comprises a flexible pouch defining therein a variable-volume storage chamber sealed with respect to the ambient atmosphere for aseptically storing therein multiple portions of the substance. A one-way valve of the assembly includes a valve body defining an axially-extending valve seat and at least one flow aperture extending through the valve body and/or the valve seat.
    Type: Application
    Filed: January 31, 2012
    Publication date: January 17, 2013
    Inventors: Daniel Py, Julian V. Chan, Benoit Adamo, Nathaniel Houle
  • Patent number: 8240934
    Abstract: A dispenser for dispensing a substance, such as a liquid lipstick or other cosmetic, pharmaceutical or cosmeceutical product, has a body with a variable-volume storage chamber for storing the product. A dispensing portion is connected with the body and a one-way valve for dispensing amounts of product therethrough. The dispensing portion defines a compression chamber in fluid communication with the storage chamber for receiving product therefrom, and an outlet aperture coupled in fluid communication with the compression chamber. The one-way valve has a valve seat, and a visco-elastic valve cover seated on the valve seat and defining a normally-closed, axially-extending seam therebetween forming a fluid-tight seal between the valve cover and valve seat. The flexible valve cover is movable relative to the valve seat, and the seam is connectable in fluid communication with the outlet aperture to allow the passage of product through the seam and out of the dispenser.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: August 14, 2012
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan, Giovanni Rodriguez
  • Patent number: 8220507
    Abstract: A dispenser is provided for the delivery of controlled, metered amounts of any of numerous different substances to humans or animals, such as medicaments, pharmaceuticals, cosmetics, and food products, or to deliver materials that may react upon exposure to air, such as glue. Means are provided in the dispenser to effect controlled delivery of a pre-determined amount of the substance contained in the dispenser. A one-way valve is provided to hermetically seal the portion of the dispenser containing the substance to be dispensed.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: July 17, 2012
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Norbert M. Assion, Julian V. Chan
  • Publication number: 20120152881
    Abstract: A container including a body defining an outflow opening and at least one chamber adapted for storing a product, such as a fat containing liquid product, and a container closure including a primary seal for hermetically sealing the product within the chamber during storage. The container closure includes a sealing member forming a substantially fluid-tight seal between the container closure and the body, and a dispensing member in fluid communication with the chamber. The container closure and body move relative to each other between a first position where the primary seal is seated about the outflow port to hermetically seal the product in the chamber during storage, and a second position where the primary seal is displaced from the outflow port to allow product to pass from the chamber through the outflow port and into dispensing member to dispense the product.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 21, 2012
    Inventors: Daniel Py, Debashis Sahoo, Norbert M. Assion, Julian V. Chan
  • Patent number: 8104644
    Abstract: A flexible pouch and valve assembly is provided for aseptically storing a substance, dispensing multiple portions of the stored substance therefrom, and maintaining substance remaining in the pouch in an aseptic condition sealed with respect to ambient atmosphere. The flexible pouch and valve assembly are receivable within a relatively rigid housing, and are adapted to cooperate with a pump for pumping discrete portions of substance from the pouch and through the one-way valve to dispense the substance therefrom. The assembly comprises a flexible pouch defining therein a variable-volume storage chamber sealed with respect to the ambient atmosphere for aseptically storing therein multiple portions of the substance. A one-way valve of the assembly includes a valve body defining an axially-extending valve seat and at least one flow aperture extending through the valve body and/or the valve seat.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 31, 2012
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan, Benoit Adamo, Nathaniel Houle
  • Publication number: 20110297677
    Abstract: A dispenser for holding multiple doses of fluids or other substances, and for dispensing the substances, has a vial, a flexible bladder received within the vial, and a variable volume storage chamber formed between the bladder and vial. A filling valve is coupled in fluid communication with the storage chamber and defines (1) a normally closed, fluid-tight position hermetically sealing the storage chamber from the ambient atmosphere, and (2) an open position allowing the passage of fluid through the valve both to evacuate the storage chamber and to introduce fluid through the valve to fill the storage chamber. A pump is coupled in fluid communication with the storage chamber for pumping fluids out of the storage chamber. A dispensing valve is coupled in fluid communication with the pump and defines (1) a normally closed, fluid-tight position preventing the passage of fluid out of the dispenser, and (2) an open position for dispensing pumped fluid therethrough.
    Type: Application
    Filed: January 4, 2011
    Publication date: December 8, 2011
    Inventors: Daniel Py, Julian V. Chan
  • Publication number: 20110073614
    Abstract: A device for storing and dispensing a substance includes a container having a body defining therein a storage chamber for receiving and storing the substance. The container includes a head located at one end of the body and a first passageway that is in fluid communication with the storage chamber of the body and defines a flow path therebetween. The container also includes a pierceable wall located on an opposite side of the passageway relative to the storage chamber, and a first connecting portion for connecting another component thereto. The device also includes a one-way valve assembly that includes a valve body including a body base defining a second passageway and at least one piercing portion engageable with the pierceable wall of the container. The valve assembly includes a second connecting portion connectable to the first connecting portion of the container for fixedly securing the valve assembly to the container.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Inventors: Daniel Py, Julian V. Chan, Giovanni Rodriguez
  • Publication number: 20110024463
    Abstract: A flexible pouch and valve assembly is provided for aseptically storing a substance, dispensing multiple portions of the stored substance therefrom, and maintaining substance remaining in the pouch in an aseptic condition sealed with respect to ambient atmosphere. The flexible pouch and valve assembly are receivable within a relatively rigid housing, and are adapted to cooperate with a pump for pumping discrete portions of substance from the pouch and through the one-way valve to dispense the substance therefrom. The assembly comprises a flexible pouch defining therein a variable-volume storage chamber sealed with respect to the ambient atmosphere for aseptically storing therein multiple portions of the substance. A one-way valve of the assembly includes a valve body defining an axially-extending valve seat and at least one flow aperture extending through the valve body and/or the valve seat.
    Type: Application
    Filed: October 8, 2010
    Publication date: February 3, 2011
    Inventors: Daniel Py, Julian V. Chan, Benoit Adamo, Nathaniel Houle
  • Patent number: 7861750
    Abstract: A dispenser for holding multiple doses of fluids or other substances, and for dispensing the substances, has a vial, a flexible bladder received within the vial, and a variable volume storage chamber formed between the bladder and vial. A filling valve is coupled in fluid communication with the storage chamber and defines (1) a normally closed, fluid-tight position hermetically sealing the storage chamber from the ambient atmosphere, and (2) an open position allowing the passage of fluid through the valve both to evacuate the storage chamber and to introduce fluid through the valve to fill the storage chamber. A pump is coupled in fluid communication with the storage chamber for pumping fluids out of the storage chamber. A dispensing valve is coupled in fluid communication with the pump and defines (1) a normally closed, fluid-tight position preventing the passage of fluid out of the dispenser, and (2) an open position for dispensing pumped fluid therethrough.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: January 4, 2011
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan
  • Publication number: 20100331808
    Abstract: A dispenser is provided for the delivery of controlled, metered amounts of any of numerous different substances to humans or animals, such as medicaments, pharmaceuticals, cosmetics, and food products, or to deliver materials that may react upon exposure to air, such as glue. Means are provided in the dispenser to effect controlled delivery of a pre-determined amount of the substance contained in the dispenser. A one-way valve is provided to hermetically seal the portion of the dispenser containing the substance to be dispensed.
    Type: Application
    Filed: September 2, 2010
    Publication date: December 30, 2010
    Inventors: Daniel Py, Norbert M. Assion, Julian V. Chan
  • Patent number: 7850051
    Abstract: A device including a valve body defining a first passageway, a valve seat, and a flow aperture extending through the valve body and coupled in fluid communication with the first passageway. A valve member formed of an elastic material overlies the valve seat, defining a normally closed, axially-extending valve opening therebetween. The valve member is movable between a normally closed position engaging the valve seat, and an open position with at least a segment of the valve member spaced away from the valve seat to connect the valve opening in fluid communication with the flow aperture. A hermetically sealed variable-volume storage chamber stores therein multiple portions of the fluid and is connectible in fluid communication with the one-way valve assembly. A pump pumps discrete portions of fluid from the chamber, through the flow aperture and through the valve opening to dispense the portions of fluid therethrough.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: December 14, 2010
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan, Benoit Adamo
  • Patent number: 7845517
    Abstract: A device for storing and dispensing a substance includes a container having a body defining therein a storage chamber for receiving and storing the substance. The container includes a head located at one end of the body and a first passageway that is in fluid communication with the storage chamber of the body and defines a flow path therebetween. The container also includes a pierceable wall located on an opposite side of the passageway relative to the storage chamber, and a first connecting portion for connecting another component thereto. The device also includes a one-way valve assembly that includes a valve body including a body base defining a second passageway and at least one piercing portion engageable with the pierceable wall of the container. The valve assembly includes a second connecting portion that is connectable to the first connecting portion of the container for fixedly securing the valve assembly to the container when the valve assembly and container are located in the second position.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: December 7, 2010
    Assignee: Medical Instill Technologies Inc.
    Inventors: Daniel Py, Julian V. Chan, Giovanni Rodriguez
  • Publication number: 20100280466
    Abstract: An ophthalmic delivery device includes a body defining a fluid reservoir and a pump in fluid communication with the reservoir. The delivery device also includes a nozzle that includes a dosage chamber for holding a dosage of fluid, a valve seat, and a valve cover. The valve cover extends about the valve seat and forms an interface therebetween and the valve seat includes an outlet aperture. The interface is in fluid communication with the outlet aperture and the dosage chamber, and at least part of the valve cover is movable between (i) a closed position with the valve cover engaging the valve seat to close the interface and form a fluid-tight seal therebetween, and (ii) an open position with at least part of the valve cover spaced away from the valve seat in response to fluid flowing through the outlet aperture at a pressure greater than a valve opening pressure to allow the passage of pressurized fluid therebetween.
    Type: Application
    Filed: March 15, 2010
    Publication date: November 4, 2010
    Inventors: Daniel Py, Julian V. Chan, Jeffrey M. Atwood
  • Patent number: D625615
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: October 19, 2010
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan, Luz Gladys Valencia
  • Patent number: D655621
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: March 13, 2012
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan, Luz Gladys Valencia
  • Patent number: D674291
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: January 15, 2013
    Assignee: Medical Instill Technologies, Inc.
    Inventors: Daniel Py, Julian V. Chan, Luz Gladys Valencia