Patents Assigned to QLT Plug Delivery, Inc. - QPDI
  • Publication number: 20090298390
    Abstract: Surface treated implantable articles and related methods are disclosed. The surface treated implantable articles can be substantially flash-free, include one or more rounded edges, or include an enhanced optical clarity, one or all of which can be produced by polishing. The polishing can include causing the implantable articles to be repeatedly impacted with polishing media when the articles are swelled to an enlarged state. The polishing process can be particularly useful for smoothing lacrimal implants insertable in a lacrimal canaliculus.
    Type: Application
    Filed: September 5, 2008
    Publication date: December 3, 2009
    Applicant: QLT Plug Delivery, Inc. - QPDI
    Inventors: Alan R. Rapacki, Wilhelm Leung
  • Publication number: 20090104243
    Abstract: A solid drug core insert can be manufactured by injecting a liquid mixture comprising a therapeutic agent and a matrix precursor into a sheath body. The injection can be conducted at subambient temperatures. The mixture is cured to form a solid drug-matrix core. The therapeutic agent can be a liquid at about room temperature that forms a dispersion of droplets in the matrix material. A surface of the solid drug core is exposed, for example by cutting the tube, and the exposed surface of the solid drug core releases therapeutic quantities of the therapeutic agent when implanted into the patient. In some embodiments, the insert body inhibits release of the therapeutic agent, for example with a material substantially impermeable to the therapeutic agent, such that the therapeutic quantities are released through the exposed surface, thereby avoiding release of the therapeutic agent to non-target tissues.
    Type: Application
    Filed: September 5, 2008
    Publication date: April 23, 2009
    Applicant: QLT Plug Delivery, Inc. - QPDI
    Inventors: Deepank Utkhede, Robert W. Shimizu, Rachna Jain, Stephen Boyd, Hanson S. Gifford, Eugene de Juan, JR., Cary J. Reich
  • Publication number: 20090104248
    Abstract: Lacrimal implants for treating diseases or disorders are disclosed. More particularly, lacrimal implants, methods of making such implants, and methods of treating ocular, respiration, inner ear or other diseases or disorders using such implants are disclosed.
    Type: Application
    Filed: September 8, 2008
    Publication date: April 23, 2009
    Applicant: QLT Plug Delivery, Inc. -QPDI
    Inventors: Alan R. Rapacki, Valery Rubinchik, John B. Holds, Sylvie Sim, Danny Shen
  • Publication number: 20090105749
    Abstract: Insertion and extraction tool, systems, and methods for use with lacrimal implants. An insertion tool is disclosed that includes a proximal end, a distal end, and a tool body therebetween. The distal end includes a mechanical coupling to receive a cartridge preloaded with a lacrimal implant, and a plunger configured to dispense the lacrimal implant from a preloaded cartridge.
    Type: Application
    Filed: September 5, 2008
    Publication date: April 23, 2009
    Applicant: QLT Plug Delivery, Inc. - QPDI
    Inventors: Eugene de Juan, Cary J. Reich, Stephen Boyd, Alan R. Rapacki, Robert W. Shimizu, Valery Rubinchik, Charles Richard Kjellbotn
  • Publication number: 20090099626
    Abstract: This document discusses, among other things, an apparatus comprising a lacrimal implant insertable at least partially into a lacrimal punctum. The lacrimal implant comprises an implant core, and an implant body. The implant body includes a cavity sized and shaped to receive the implant core. At least one of the implant core and the implant cavity includes a detection device configured to allow automatic detection of the lacrimal implant with a separate detector device.
    Type: Application
    Filed: September 5, 2008
    Publication date: April 16, 2009
    Applicant: QLT Plug Delivery, Inc. - QPDI
    Inventors: Eugene de Juan, JR., Stephen Boyd, Cary J. Reich, Christopher V. Cardenas, Tommy Jewell, Lorrie Ma, Ngoc-Tuan Nguyen