Patents Assigned to Sub-Q, Inc.
  • Patent number: 7955353
    Abstract: The present invention provides for a method and apparatus to provide hemostasis at a puncture site having a communication tube with a lumen, a top and a bottom; a hemostatic material positioned around the communication tube bottom, the hemostatic material having a first end and a second end; and a hemostatic material cover positioned around the hemostatic material and the communication tube bottom, wherein the hemostatic material cover forms a hollow distal tip cavity at the hemostatic material first end.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: June 7, 2011
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Eduardo Chi Sing, Tin T. Tran
  • Patent number: 7875043
    Abstract: A solution is provided to release a tissue cinching loop within a body having a first thread having a first end and a second end, and a second thread having a first half having a first tip, a second half having a second tip, a bottom half having a link, and a top half, wherein the first end is inserted through the link. A first knot is formed around the first thread with the top half thereby forming a loop where the diameter of the loop decreases as the knot is pushed into the body and the first thread is pulled out of the body and where the loop is released within the body when the first end is pulled out of the body.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: January 25, 2011
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Roy D. Bertolet, Tin T. Tran, Andrew H. Cragg
  • 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: 7625352
    Abstract: A depth and puncture control system for a blood vessel hemostasis system includes a blood vessel puncture control tip which, when positioned in the lumen of a blood vessel, can inhibit the flow of blood out of the puncture site. When used together with a pledget delivery cannula and a pledget pusher, the control tip and the delivery catheter can both inhibit blood loss out the puncture site and inhibit the introduction of pledget material and tissue fragments into the blood vessel. The system also includes a handle which releasably connects together the control tip, pusher, and delivery cannula to permit limited longitudinal motion between the control tip and the delivery cannula, and between the pusher and the delivery cannula.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: December 1, 2009
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Andrew Cragg, Luis Urquidi, Eduardo Chi-Sing, Eric Lee
  • 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
  • Patent number: 7335219
    Abstract: An apparatus for inhibiting blood loss from a puncture site. The apparatus may include means for locating a puncture site in a blood vessel wall. This apparatus is comprised of a tube and an elongated member that is positioned around the tube. The elongated member includes a proximal end and a distal end. Around the tube is also a dissolvable distal capsule, the distal capsule including a proximal end and a distal end, wherein the proximal end of the distal capsule attaches to the distal end of the elongated member. Inside the distal capsule is hemostatic material such as a sponge.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: February 26, 2008
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Tin Trong Tran
  • Patent number: 7201725
    Abstract: A device for determining the depth of an incision from the epidermal layer to a puncture in a blood vessel in which the device includes an elongated member which has a lumen extending from a distal end to a proximal end. The distal end of the elongated member is configured to locate the blood vessel. After the device locates the blood vessel, a depth indicator is positioned to mark the depth of the blood vessel. In one embodiment, the elongated member includes a tapering interior surface which can receive a portion of the blood vessel. An extending control member may extend from the device at the distal end wherein the extending control member enters the blood vessel before the device locates the vessel. Fluid from the blood vessel enters the extending member through a vent hole and exits through an opening at the proximal end of the device, thereby providing a user with visual feedback that the device is moving in the desired direction toward the blood vessel.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: April 10, 2007
    Assignee: Sub-Q, Inc.
    Inventors: Andrew H. Cragg, Rodney Brenneman, Mark Ashby, Eduardo Chi Sing
  • Patent number: 7192436
    Abstract: A system and method for delivering a pledget of hemostasis promoting material to a blood vessel puncture to facilitate hemostasis, having an introducer sheath having an inner diameter and an outer diameter, a control tip coupled to the introducer sheath, and a self-expandable member disposed around a portion of the control tip to control blood flow at the blood vessel puncture.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: March 20, 2007
    Assignee: Sub-Q, Inc.
    Inventors: Eduardo Chi Sing, Luis Urquidi, Mark Ashby, Andrew Cragg, Tom Furey, Robert Bowes, Vincent Tangherlini
  • Patent number: 7159716
    Abstract: A cutting device is described having a base with an opening with cutting edges, and a flap articulated with respect to the base, the flap having a shape corresponding to the opening and cutting edges corresponding to the cutting edges of the opening. The cutting device is preferably provided as part of a kit for preparing and delivering hemostatic material to a patient.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: January 9, 2007
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Luis R. Urquidi
  • Patent number: 7048710
    Abstract: A system for facilitating hemostasis of a puncture site in a blood vessel injects an absorbable sponge pledget in a hydrated state 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 plunger. 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 plunger 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: July 11, 2000
    Date of Patent: May 23, 2006
    Assignee: Sub-Q, Inc.
    Inventors: Andrew H. Cragg, Rodney Brenneman, Mark Ashby
  • Patent number: 7037323
    Abstract: A system for delivering hemostasis promoting material of the present invention allows the hemostasis promoting material to be delivered to a blood vessel puncture site by fluid pressure. The system allows the hemostasis promoting material to be delivered through an introducer sheath which is already in place within a tissue tract. This system includes a control tip which is insertable through the introducer sheath to locate and occlude the blood vessel puncture site and a hydration chamber for receiving and delivering the hemostasis promoting material to the blood vessel puncture site. The system accurately locates the blood vessel wall at a puncture site and for properly placing a hemostasis plug over the puncture site.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: May 2, 2006
    Assignee: Sub-Q, Inc.
    Inventors: Eduardo Chi Sing, Luis Urquidi, Mark Ashby, Andrew Cragg
  • Patent number: 7037322
    Abstract: A system for delivering hemostasis promoting material of the present invention allows the hemostasis promoting material to be delivered to a blood vessel puncture site by fluid pressure. The system allows the hemostasis promoting material to be delivered through an introducer sheath which is already in place within a tissue tract. This system includes a controlled tip which is insertable through the introducer sheath to locate and occlude the blood vessel puncture site and a hydration chamber for receiving and delivering the hemostasis promoting material to the blood vessel puncture site. The system accurately locates the blood vessel wall at a puncture site and for properly placing a hemostasis plug over the puncture site.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: May 2, 2006
    Assignee: Sub-Q, Inc.
    Inventors: Eduardo Chi Sing, Mark Ashby, Luis R. Urquidi
  • Patent number: 7029489
    Abstract: A system for delivering hemostasis promoting material of the present invention allows the hemostasis promoting material to be delivered to a blood vessel puncture site by fluid pressure. The system allows the hemostasis promoting material to be delivered through an introducer sheath which is already in place within a tissue tract. This system includes a controlled tip which is insertable through the introducer sheath to locate and occlude the blood vessel puncture site and a hydration chamber for receiving and delivering the hemostasis promoting material to the blood vessel puncture site. The system accurately locates the blood vessel wall at a puncture site and for properly placing a hemostasis plug over the puncture site.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: April 18, 2006
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Luis R. Urquidi, Eduardo Chi Sing
  • Patent number: 7008440
    Abstract: A system for delivering hemostasis promoting material of the present invention allows the hemostasis promoting material to be delivered to a blood vessel puncture site by fluid pressure. The system allows the hemostasis promoting material to be delivered through an producer sheath which is already in place within a tissue tract. The system includes a controlled tip which is insertable through the introducer sheath to locate and occlude the blood vessel puncture site and a hydration chamber for receiving and delivering the hemostasis promoting material to the blood vessel puncture site. The system accurately locates the blood vessel wall at a puncture site and for properly placing a hemostasis plug over the puncture site.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: March 7, 2006
    Assignee: Sub-Q, Inc.
    Inventors: Eduardo Chi Sing, Mark Ashby, Luis Urquidi
  • Patent number: 6964658
    Abstract: A system for facilitating hemostasis of a puncture site in a blood vessel delivers 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 staging chamber, a delivery cannula, and a pusher. The staging chamber is used for hydrating a pledget of absorbable sponge, compressing the pledget, and delivering the pledget to the delivery cannula. The staging chamber may include a valve for facilitating hydration and staging of the pledget. The delivery cannula and pusher are used to accurately place the sponge pledget outside the blood vessel. An easy loader connector may be used to facilitate loading the dry pledget into the staging chamber.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: November 15, 2005
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Luis R. Urquidi, Eric Lee
  • Patent number: 6863680
    Abstract: A system for delivering hemostasis promoting material of the present invention allows the hemostasis promoting material to be delivered to a blood vessel puncture site by fluid pressure. The system allows the hemostasis promoting material to be delivered through an introducer sheath which is already in place within a tissue tract. This system includes a controlled tip which is insertable through the introducer sheath to locate and occlude the blood vessel puncture site and a hydration chamber for receiving and delivering the hemostasis promoting material to the blood vessel puncture site. The system accurately locates the blood vessel wall at a puncture site and for properly placing a hemostasis plug over the puncture site.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: March 8, 2005
    Assignee: Sub-Q, Inc.
    Inventor: Mark Ashby
  • Patent number: 6849232
    Abstract: Disclosed are methods for sterilizing cross-linked gelatin as well as to sterilized cross-linked gelatin. In particular, the methods of this invention employ E-beam sterilization techniques.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: February 1, 2005
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Eduardo C. Sing, Richard J. Greff
  • Patent number: 6846320
    Abstract: A biopsy cannula and a delivery catheter are configured to deliver one or more absorbable sponge pledgets to a biopsy site after removal of one or more tissue samples from the site. The delivery catheter allows a large amount of hydrated sponge material to be delivery to the biopsy site to facilitate hemostasis. One example of the delivery catheter includes a closed distal end, a side port, a tapered section, and an enlarged proximal portion for receiving the pledget. The side port of the delivery catheter is arranged to delivery the pledget through the side port of the biopsy cannula. In order to fill a relatively large biopsy site where multiple tissue samples have been taken in a radial pattern, the biopsy cannula is rotated and additional pledgets are delivered to the biopsy site at different radial locations. The absorbable sponge pledget may also be used as a marker for location of the biopsy site at a later time.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: January 25, 2005
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Vaughn P. Whalen, Eduardo Chi Sing
  • Publication number: 20040019330
    Abstract: The present invention discloses a sheath based puncture locator and depth indicator. The present invention provides for locating a blood vessel puncture site and determining the depth of the puncture of the blood vessel extravascularly using the introducer sheath that is already in place within the tissue tract. The present invention also provide for positioning the introducer sheath extravascularly or outside the blood vessel, controlling the blood vessel puncture site, and delivering a hemostasis promoting material to a blood vessel puncture site.
    Type: Application
    Filed: November 22, 2002
    Publication date: January 29, 2004
    Applicant: SUB-Q, Inc., a California Corporation
    Inventor: Mark Ashby
  • Patent number: 6610026
    Abstract: A method of hydrating a sponge material for delivery to a body. The method includes the steps of placing a dry piece of sponge in a container at a first pressure. A hydrating fluid is then introduced into the container to hydrate the sponge. The pressure within the container is changed between the first pressure and a second pressure. At least a portion of the hydrating fluid is removed from the sponge, and the sponge is delivered to a bodily site.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: August 26, 2003
    Assignee: Sub-Q, Inc.
    Inventors: Andrew H. Cragg, Rodney Brenneman, Mark Ashby