Patents by Inventor Douglas Carrell

Douglas Carrell 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).

  • Microfluidic system for sperm separation and enrichment from various types of sperm samples
    Patent number: 11517900
    Abstract: A method for separating and enriching sperm from a tissue sample comprises: obtaining a microfluidic separating system having an inlet end and an outlet end, and a membrane filter (e.g., hollow fiber membrane filter) fluidly connected to the outlet end; separating the tissue sample via the microfluidic separating system into a debris fluid volume and a sperm fluid volume; and enriching the sperm fluid volume by removing excess media via the membrane filter. A two-stage tissue sample separation system comprising: a microchannel structure defining a separation fluid channel to form a separation stage; an inlet end of the microchannel structure; an outlet end of the microchannel structure; and a membrane filter fluidly connected to the outlet end for removal of at least a portion of excess media in the tissue sample.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 6, 2022
    Assignee: University of Utah Research Foundation
    Inventors: Raheel Samuel, Bruce Gale, Alex Jafek, Timothy Jenkins, Jim Hotaling, Douglas Carrell, Jiyoung Son
  • MICROFLUIDIC SYSTEM FOR SPERM SEPARATION AND ENRICHMENT FROM VARIOUS TYPES OF SPERM SAMPLES
    Publication number: 20190329256
    Abstract: A method for separating and enriching sperm from a tissue sample comprises: obtaining a microfluidic separating system having an inlet end and an outlet end, and a membrane filter (e.g., hollow fiber membrane filter) fluidly connected to the outlet end; separating the tissue sample via the microfluidic separating system into a debris fluid volume and a sperm fluid volume; and enriching the sperm fluid volume by removing excess media via the membrane filter. A two-stage tissue sample separation system comprising: a microchannel structure defining a separation fluid channel to form a separation stage; an inlet end of the microchannel structure; an outlet end of the microchannel structure; and a membrane filter fluidly connected to the outlet end for removal of at least a portion of excess media in the tissue sample.
    Type: Application
    Filed: October 29, 2018
    Publication date: October 31, 2019
    Inventors: Raheel Samuel, Bruce Gale, Alex Jafek, Timothy Jenkins, Jim Hotaling, Douglas Carrell, Jiyoung Son