Patents by Inventor Andrew Czyzowski

Andrew Czyzowski 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).

  • Apparatus and methods for filling a drug eluting medical device via capillary action
    Patent number: 10226367
    Abstract: Methods and apparatus are disclosed for filling a therapeutic substance or drug within a hollow wire that forms a stent. The stent is placed within a chamber housing a fluid drug formulation. During filling, the chamber is maintained at or near the vapor-liquid equilibrium of the solvent of the fluid drug formulation. To fill the stent, at least a portion of the stent is placed into contact with the fluid drug formulation until a lumenal space defined by the hollow wire is at least partially filled with the fluid drug formulation via capillary action. After filling is complete, the stent is retracted such that the stent is no longer in contact with the fluid drug formulation. The solvent vapor pressure within the chamber is reduced to evaporate a solvent of the fluid drug formulation. A wicking means may control transfer of the fluid drug formulation into the stent.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: March 12, 2019
    Assignee: MEDTRONIC VASCULAR, INC.
    Inventors: Justin Peterson, James Mitchell, Abby S. Pandya, Nathanael Glucklich, Justin Goshgarian, Rajen Kumar, Andrew Czyzowski
  • APPARATUS AND METHODS FOR FILLING A DRUG ELUTING MEDICAL DEVICE VIA CAPILLARY ACTION
    Publication number: 20180168834
    Abstract: Methods and apparatus are disclosed for filling a therapeutic substance or drug within a hollow wire that forms a stent. The stent is placed within a chamber housing a fluid drug formulation. During filling, the chamber is maintained at or near the vapor-liquid equilibrium of the solvent of the fluid drug formulation. To fill the stent, at least a portion of the stent is placed into contact with the fluid drug formulation until a lumenal space defined by the hollow wire is at least partially filled with the fluid drug formulation via capillary action. After filling is complete, the stent is retracted such that the stent is no longer in contact with the fluid drug formulation. The solvent vapor pressure within the chamber is reduced to evaporate a solvent of the fluid drug formulation. A wicking means may control transfer of the fluid drug formulation into the stent.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 21, 2018
    Inventors: Justin Peterson, James Mitchell, Abby Schlichting, Nathanael Glucklich, Justin Goshgarian, Rajen Kumar, Andrew Czyzowski