Patents by Inventor Farhad Kazemzadeh

Farhad Kazemzadeh 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: 6126642
    Abstract: A compact, patient controlled fluid dispenser for use in controllably dispensing fluid medicament at a selected uniform rate. The device is of an all mechanical construction and is ideally suited for the reliable patient administration of pain killing drugs in the home care environment. To positively regulate the patient administration of the medicament, the intervals at which a selected medicament can be administered, as well as the volume of the dose of the medicament to be administered, is preset by the treating physician and, once set, cannot be altered by the patient. More particularly, the device setting can only be operated by a small physician's key that remains in the possession and control of the treating physician or health care worker.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: October 3, 2000
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, William W. Feng, Thomas N. Thompson
  • Patent number: 6105442
    Abstract: An apparatus for delivering fluids at a precisely controlled rate which comprises a fluid dispensing component having a fluid reservoir for containing the fluids to be delivered and a reservoir fill component which can be removably interconnected with the fluid dispensing component. The dispensing component can be used for the precise infusion of pharmaceutical fluids to an ambulatory patient at controlled rates. The reservoir fill assembly is uniquely designed to accept a vial component of conventional construction which is partially received within a novel adapter subassembly that can readily be removably interconnected with the fluid dispensing component.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: August 22, 2000
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Steven M. Arnold, James Garrison, Farhad Kazemzadeh
  • Patent number: 6086561
    Abstract: An apparatus for delivering fluids at a precisely controlled rate which includes a fluid dispensing component having a fluid reservoir for containing the fluids to be delivered and a reservoir fill component which can be removably interconnected with the fluid dispensing component. The reservoir fill assembly is uniquely designed to accept a vial component of conventional construction which is factory filled with the medicinal fluid to be delivered to the patient. The dispenser component embodies a highly novel fluid flow indicator that provides a readily discernible visual indication of fluid flow status through the device.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: July 11, 2000
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Jmaes M. Garrison, Steven Arnold, Farhad Kazemzadeh
  • Patent number: 6068613
    Abstract: An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time. The apparatus is of a low profile, laminate construction having a stored energy source in the form of a distendable membrane, which in cooperation with the base of the apparatus defines one or more fluid reservoirs each having a fluid inlet and a fluid outlet. The apparatus further includes a novel, conformable ullage made of formable materials. The conformable ullage uniquely conforms to the shape of elastomeric membrane as the membrane returns to its less distend configuration and in so doing can move between a central chamber and a toroidal chamber formed in the cover of the apparatus. This arrangement will satisfy even the most stringent medicament delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying solely rigid ullage construction.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: May 30, 2000
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng, Steve C. Barber, William J. Kluck
  • Patent number: 6045533
    Abstract: A fluid delivery apparatus for continuous basal infusion, together with controlled bolus infusion of injectable medicaments, which embodies a stored energy source such as distendable elastomeric membrane which cooperates with a base and a conformable ullage to define a fluid reservoir and one which includes a unique fill assembly for use in controllably filling the fluid reservoir. The novel fill assembly of the invention enables the fluid reservoir of the fluid delivery portion of the apparatus to be aseptically filled in the field with a wide variety of selected medicinal fluids.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: April 4, 2000
    Assignee: Science Incorporated
    Inventors: Marshall S Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W Feng, Thomas N Thompson
  • Patent number: 6010482
    Abstract: An apparatus for visually indicating fluid flow through a fluid system or apparatus such as a medical infusion device. The apparatus comprises a pair of thin, indicia bearing films disposed in an overlaying relationship. These films are shifted relative to each other by movement of mechanical actuators which are deflected solely by the pressure of the fluid within the fluid conduits of the system of the apparatus. The two films are stacked in closed proximity and are preferably constructed from a substantially transparent flexible material such as mylar. One surface of the inferior film is printed with a plurality of integrated symbols depicting various fluid flow conditions. The superior film functions as a mask over the inferior film and is printed with a pattern of diagonally extending, alternating clear and opaque stripes. The print ratio of the superior film permits viewing at any one time of only one of the symbols printed on the inferior film.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: January 4, 2000
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Steven M. Arnold, James Garrison, Farhad Kazemzadeh
  • Patent number: 6007518
    Abstract: A fluid delivery apparatus which embodies a stored energy source such as distendable elastomeric membrane which cooperates with a base and a conformable ullage to define a fluid reservoir and one which includes a unique fill assembly for use in controllably filling the fluid reservoir. The novel fill assembly of the invention enables the fluid reservoir of the fluid delivery portion of the apparatus to be aseptically filled in the field with a wide variety of selected medicinal fluids.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: December 28, 1999
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B Kriesel, William W Feng
  • Patent number: 5962794
    Abstract: An apparatus for delivering fluids at a precisely controlled rate which comprises a fluid dispensing component having a fluid reservoir for containing the fluids to be delivered and a reservoir fill component which can be removably interconnected with the fluid dispensing component. The dispensing component can be used for the precise infusion of pharmaceutical fluids to an ambulatory patient at controlled rates. The reservoir fill assembly is uniquely designed to accept a vial component of conventional construction which is partially received within a novel adapter subassembly that can readily be removably interconnected with the fluid dispensing component.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: October 5, 1999
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Steven M. Arnold, James M. Garrison, Farhad Kazemzadeh
  • Patent number: 5957891
    Abstract: A fluid delivery device having a self-contained stored energy membrane for expelling fluids at a precisely controlled rate which is of a compact, laminate construction. The device also includes a novel adapter which is usable to fill the reservoir of the device using a compatable filling syringe apparatus which is mateable with the adapter.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: September 28, 1999
    Assignee: Science Incorporated
    Inventors: Marshall S Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, Steven C. Barber, William J. Kluck, William W. Feng
  • Patent number: 5925017
    Abstract: An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time. The apparatus is of a low profile, laminate or layered construction having a stored energy source in the form of a distendable membrane which, in cooperation with the base of the apparatus, defines one or more fluid reservoirs, each having a fluid inlet and a fluid outlet. The apparatus further includes, a novel, conformable ullage made of yieldable materials which uniquely conforms to the shape of the elastomeric membrane as the membrane returns to its less distended configuration. This arrangement will satisfy even the most stringent medicament delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying solely a rigid ullage construction.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: July 20, 1999
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng, Steve C. Barber, William J. Kluck
  • Patent number: 5921962
    Abstract: A fluid delivery device for infusing medicinal fluids having a self-contained stored energy membrane for expelling fluids at a precisely controlled rate. The device is of a compact, low profile, laminate construction so that it can conveniently be used for the fluids, such as insulin and the like, into an ambulatory patient at controlled rates over extended periods of time. Included within the device are various fluid flow control elements including a unique hydraulic fluid rate control system for ultra low flow delivery. Also included is a highly novel flow indictor for providing a positive indication of fluid flow from the device and for indicating at any given time the amount of fluid remaining in the device.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: July 13, 1999
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng, Steve C. Barber, William J. Kluck
  • Patent number: 5906592
    Abstract: An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time and the method for making same. The apparatus includes one or more dispensers of a low profile, laminate or layered construction each having a stored energy source in the form of a distendable membrane or an elastomeric cellular mass, which in cooperation with the base, defined a fluid chamber having a fluid inlet and a fluid outlet. The apparatus further includes, in lieu of a rigid ullage, a high novel, conformable ullage made of yieldable materials. The conformable ullage uniquely conforms to the shape of elastomeric membrane as the membrane returns to its less distended configuration. This arrangement will satisfy even the most stringent delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying the rigid ullage construction.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: May 25, 1999
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng, Steve C Barber, William J. Kluck
  • Patent number: 5885250
    Abstract: An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time. The apparatus is of a low profile, laminate or layered construction having a stored energy source in the form of a distendable membrane, which, in cooperation with the base of the apparatus, defines one or more fluid reservoirs, each having a fluid inlet and a fluid outlet. The apparatus further includes, a novel conformable ullage made of yieldable materials. The conformable ullage uniquely conforms to the geometry of elastomeric membrane as the membrane returns to its less distended configuration and in so doing can move between a central chamber and a toroidal chamber formed in the cover of the apparatus. This arrangement will satisfy even the most stringent medicament delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying solely a rigid ullage construction.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: March 23, 1999
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W.. Feng, Steve C. Barber, William J. Kluck
  • Patent number: 5840071
    Abstract: An apparatus for accurately infusing medicinal agents into an ambulatory patient at specific rates over extended periods of time. The apparatus is of a compact, low profile, laminate construction and includes an elastic distendable membrane, chamber having a fluid outlet. Disposed within the fluid chamber is a thin fluid permeable member which precisely controls the rate of fluid flow through the fluid outlet. The apparatus also includes a highly novel fluid flow indicator that provides a readily discernible visible indication of fluid flow through the apparatus. Additionally, the apparatus includes a fill assembly comprising a prefilled vial that can be used to fill the fluid reservoir of the device with a selected medicinal fluid.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: November 24, 1998
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Steven M. Arnold, James Garrison, Farhad Kazemzadeh
  • Patent number: 5830187
    Abstract: A fluid delivery apparatus for continuous basal infusion, together with controlled bolus infusion of injectable medicaments, which embodies a stored energy source such as distendable elastomeric membrane which cooperates with a base and a conformable ullage to define a fluid reservoir and one which includes a unique fill assembly for use in controllably filling the fluid reservoir. The novel fill assembly of the invention enables the fluid reservoir of the fluid delivery portion of the apparatus to be aseptically filled in the field with a wide variety of selected medicinal fluids.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: November 3, 1998
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng, Thomas Thompson
  • Patent number: 5807335
    Abstract: A fluid delivery apparatus which embodies a stored energy source such as distendable elastomeric membrane which cooperates with a base and a conformable ullage to define a fluid reservoir and one which includes a unique fill assembly for use in controllably filling the fluid reservoir. The novel fill assembly of the invention enables the fluid reservoir of the fluid delivery portion of the apparatus to be aseptically filled in the field with a wide variety of selected medicinal fluids.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: September 15, 1998
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng
  • Patent number: 5779676
    Abstract: An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time. The apparatus is of a low profile, laminate or layered construction having a stored energy source in the form of a distendable membrane, which in cooperation with the base of the apparatus, defines one or more fluid reservoirs, each having a fluid inlet and a fluid outlet. The apparatus further includes, a novel, conformable ullage made of yieldable materials which uniquely conform to the shape of the elastomeric membrane as the membrane returns to its less distended configuration. This arrangement will satisfy even the most stringent medicament delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying solely a rigid ullage construction. Additionally, in one form of the invention, the apparatus includes a novel fill assembly for controllably filling the reservoirs of the device in the field.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: July 14, 1998
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng, Steve C. Barber, William J. Kluck
  • Patent number: 5776103
    Abstract: An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time. The apparatus is of a low profile, laminate or layered construction having a stored energy source in the form of a distendable membrane, which, in cooperation with the base of the apparatus, defines one or more fluid reservoirs, each having a fluid inlet and a fluid outlet. The apparatus further includes, a novel, conformable ullage made of yieldable materials which uniquely conforms to the shape of the elastomeric membrane as the membrane returns to its less distended configuration. This arrangement will satisfy even the most stringent medicament delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying solely a rigid ullage construction.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: July 7, 1998
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng, Steve C. Barber, William J. Kluck
  • Patent number: 5735818
    Abstract: An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time. The apparatus is of a low profile, laminate or layered construction having a stored energy source in the form of a distendable membrane, which, in cooperation with the base of the apparatus, defines one or more fluid reservoirs, each having a fluid inlet and a fluid outlet. The apparatus further includes, a novel conformable ullage made of yieldable materials. The conformable ullage uniquely conforms to the geometry of elastomeric membrane as the membrane returns to its less distended configuration and in so doing can move between a central chamber and a toroidal chamber formed in the cover of the apparatus. This arrangement will satisfy even the most stringent medicament delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying solely a rigid ullage construction.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: April 7, 1998
    Assignee: Science Incorporated
    Inventors: Marshall S. Kriesel, Farhad Kazemzadeh, Matthew B. Kriesel, William W. Feng, Steve C. Barber, William J. Kluck
  • Patent number: 5721382
    Abstract: An apparatus for visually indicating fluid flow through a fluid system or apparatus such as a medical infusion device. The apparatus comprises a pair of thin, indicia bearing films disposed in an overlaying relationship. These films are shifted relative to each other by movement of mechanical actuators which are deflected solely by the pressure of the fluid within the fluid conduits of the system of the apparatus. The two films are stacked in closed proximity and are preferably constructed from a substantially transparent flexible material such as mylar. One surface of the inferior film is printed with a plurality of integrated symbols depicting various fluid flow conditions. The superior film functions as a mask over the inferior film and is printed with a pattern of diagonally extending, alternating clear and opaque stripes. The print ratio of the superior film permits viewing at any one time of only one of the symbols printed on the inferior film.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: February 24, 1998
    Inventors: Marshall S. Kriesel, James M. Garrison, Steven Arnold, Farhad Kazemzadeh