Patents by Inventor Andrew M. Cragg

Andrew M. Cragg 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).

  • Publication number: 20100036414
    Abstract: A system for facilitating hemostasis of a puncture site in a blood vessel injects an absorbable sponge pledget in a hydrated state to a position at an exterior of the blood vessel puncture to facilitate hemostasis. The system includes a tract dilator for locating the puncture, an introducer, and a pusher. The introducer includes a staging chamber for receiving the absorbent sponge pledget and a delivery chamber having a diameter smaller than a diameter of the staging chamber into which a hydrated pledget passes. The pledget is hydrated and compressed within the introducer and then ejected with the pusher to the delivery site to facilitate hemostasis of the blood vessel puncture. The system delivers the absorbable sponge pledget over a guidewire to ensure the proper positioning of the pledget over the puncture. The implanted absorbable sponge once delivered expands rapidly to fill the target site and is absorbed by the body over time.
    Type: Application
    Filed: October 1, 2009
    Publication date: February 11, 2010
    Applicant: SUB-Q, INC.
    Inventors: Andrew M. Cragg, Rodney Brenneman, Mark Ashby, Eduardo Chi Sing
  • Patent number: 7611479
    Abstract: A system for facilitating hemostasis of a puncture site in a blood vessel injects an absorbable sponge pledget in a hydrated state to a position at an exterior of the blood vessel puncture to facilitate hemostasis. The system includes a tract dilator for locating the puncture, an introducer, and a pusher. The introducer includes a staging chamber for receiving the absorbent sponge pledget and a delivery chamber having a diameter smaller than a diameter of the staging chamber into which a hydrated pledget passes. The pledget is hydrated and compressed within the introducer and then ejected with the pusher to the delivery site to facilitate hemostasis of the blood vessel puncture. The system delivers the absorbable sponge pledget over a guidewire to ensure the proper positioning of the pledget over the puncture. The implanted absorbable sponge once delivered expands rapidly to fill the target site and is absorbed by the body over time.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: November 3, 2009
    Assignee: Sub-Q, Inc.
    Inventors: Andrew M. Cragg, Rodney Brenneman, Mark Ashby, Eduardo Chi Sing
  • Publication number: 20030088271
    Abstract: A system for facilitating hemostasis of a puncture site in a blood vessel injects an absorbable sponge pledget in a hydrated state to a position at an exterior of the blood vessel puncture to facilitate hemostasis. The system includes a tract dilator for locating the puncture, an introducer, and a pusher. The introducer includes a staging chamber for receiving the absorbent sponge pledget and a delivery chamber having a diameter smaller than a diameter of the staging chamber into which a hydrated pledget passes. The pledget is hydrated and compressed within the introducer and then ejected with the pusher to the delivery site to facilitate hemostasis of the blood vessel puncture. The system delivers the absorbable sponge pledget over a guidewire to ensure the proper positioning of the pledget over the puncture. The implanted absorbable sponge once delivered expands rapidly to fill the target site and is absorbed by the body over time.
    Type: Application
    Filed: December 13, 2002
    Publication date: May 8, 2003
    Inventors: Andrew M. Cragg, Rodney Brenneman, Mark Ashby, Eduardo Chi Sing
  • Patent number: 6527734
    Abstract: A system for facilitating hemostasis of a puncture site in a blood vessel injects an absorbable sponge pledget in a hydrated state to a position at an exterior of the blood vessel puncture to facilitate hemostasis. The system includes a tract dilator for locating the puncture, an introducer, and a pusher. The introducer includes a staging chamber for receiving the absorbent sponge pledget and a delivery chamber having a diameter smaller than a diameter of the staging chamber into which a hydrated pledget passes. The pledget is hydrated and compressed within the introducer and then ejected with the pusher to the delivery site to facilitate hemostasis of the blood vessel puncture. The system delivers the absorbable sponge pledget over a guidewire to ensure the proper positioning of the pledget over the puncture. The implanted absorbable sponge once delivered expands rapidly to fill the target site and is absorbed by the body over time.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: March 4, 2003
    Assignee: Sub-Q, Inc.
    Inventors: Andrew M. Cragg, Rodney Brenneman, Mark Ashby, Eduardo Chi Sing
  • Patent number: 6315753
    Abstract: A method of superhydrating an absorbable sponge for delivery to a body to facilitate hemostasis includes the step of subjecting the absorbable sponge to a high pressure fluid to hydrate the absorbable sponge. According to one method, a dry piece of absorbable sponge is placed in a delivery device. The absorbable sponge is then subjected to a high pressure fluid by injecting fluid into the delivery device to rapidly and completely hydrate the absorbable sponge in the delivery device. The high pressure fluid used for rapidly and completely hydrating the absorbable sponge is delivered at a pressure of about 5 psi or greater. The hydrated absorbable sponge may be delivered to a puncture site in a blood vessel to facilitate hemostasis of the puncture site.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: November 13, 2001
    Assignee: Sub-Q, Inc.
    Inventors: Andrew M. Cragg, Rodney Brenneman, Mark Ashby, Eduardo Chi Sing