Patents by Inventor Lindsay S. Machan

Lindsay S. Machan 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).

  • Patent number: 9751056
    Abstract: A movable mixing disc may be utilized in connection with a syringe. The mixing disc may comprise a hole which may be covered by a fine screen or coupled to a porous member, allowing only certain elements of a solution to pass through the mixing disc. Actuation of a plunger of the syringe may cause liquid to emerge from the mixing disc hole as a high velocity jet or other turbulent flow, stirring up any settled particles on a distal side of the mixing disc. As the ejection continues, the mixing disc may be pushed forward by the plunger in order to eliminate any unused volume. Also, the mixing disc may be moved forward by virtue of a pressure difference created by a pressure drop across the mixing disc, such as a pressure drop created as the plunger is displaced to induce fluid flow across the mixing disc.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: September 5, 2017
    Assignees: Merit Medical Systems, Inc., IKOMED Technologies, Inc.
    Inventors: Gregory R. McArthur, Lindsay S. Machan, Daniel Gelbart
  • Publication number: 20150094593
    Abstract: A foot operated air pump rapidly inflates a pneumatic cuff wrapped around the leg of a patient. At the moment of inflation a pressure switch senses the increase in air pressure and sends a timing signal to an ultrasonic imaging system.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Inventors: Lindsay S. Machan, Daniel Gelbart
  • Patent number: 8834449
    Abstract: A movable mixing disc is inserted into a regular syringe. The mixing disc has a small hole covered by a fine screen, allowing only saline solution to get behind the disc. When the plunger of the syringe is pressed, the saline solution emerges from the mixing disc hole as a high velocity jet, stirring up the settled particles. As the ejection continues, the mixing disc is pushed forward by the plunger in order to eliminate any unused volume.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 16, 2014
    Assignee: Ikomed Technologies, Inc.
    Inventors: Lindsay S. Machan, Daniel Gelbart
  • Publication number: 20140254303
    Abstract: A movable mixing disc may be utilized in connection with a syringe. The mixing disc may comprise a hole which may be covered by a fine screen or coupled to a porous member, allowing only certain elements of a solution to pass through the mixing disc. Actuation of a plunger of the syringe may cause liquid to emerge from the mixing disc hole as a high velocity jet or other turbulent flow, stirring up any settled particles on a distal side of the mixing disc. As the ejection continues, the mixing disc may be pushed forward by the plunger in order to eliminate any unused volume. Also, the mixing disc may be moved forward by virtue of a pressure difference created by a pressure drop across the mixing disc, such as a pressure drop created as the plunger is displaced to induce fluid flow across the mixing disc.
    Type: Application
    Filed: May 21, 2014
    Publication date: September 11, 2014
    Applicants: Merit Medical Systems, Inc., IKOMED Technologies, Inc.
    Inventors: Gregory R. McArthur, Lindsay S. Machan, Daniel Gelbart
  • Patent number: 8693628
    Abstract: To reduce X-ray exposure while improving image quality, an area of interest is selected in the image. The image of the selected area is updated frequently, comparable to a rate of updates used today for the whole image. The rest of the image is updated at a significantly lower rate. Since the area of interest normally is a small part of the overall area, the total exposure is reduced significantly. A fast X-ray shutter, placed near the X-ray source, blocks the radiation from areas outside the area of interest. The shutter automatically retracts when the complete image is updated. The area of interest can be selected by the user or automatically selected based on activity in the image. Since most of the exposures are taken at a reduced collimation angle, limited by the area of interest, the area of interest is imaged at reduced scatter and better quality.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: April 8, 2014
    Inventors: Lindsay S. Machan, Daniel Gelbart
  • Publication number: 20130226148
    Abstract: A movable mixing disc is inserted into a regular syringe. The mixing disc has a small hole covered by a fine screen, allowing only saline solution to get behind the disc. When the plunger of the syringe is pressed, the saline solution emerges from the mixing disc hole as a high velocity jet, stirring up the settled particles. As the ejection continues, the mixing disc is pushed forward by the plunger in order to eliminate any unused volume.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Inventors: Lindsay S. Machan, Daniel Gelbart
  • Publication number: 20130102657
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: July 13, 2012
    Publication date: April 25, 2013
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: WILLIAM L. HUNTER, LINDSAY S. MACHAN, A. LARRY ARSENAULT
  • Patent number: 8221794
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: July 17, 2012
    Assignee: Angiotech Pharmaceuticals, Inc.
    Inventors: William L. Hunter, Lindsay S. Machan, A. Larry Arsenault, Helen M. Burt, John J. Jackson, Stephen K. Dordunoo
  • Publication number: 20110202052
    Abstract: The disclosed system improves urine flow by increasing the inside diameter of the urethra going through the prostate by eroding the urethral wall, rather than by reducing the prostate volume. This is done by a specially designed IRE electrode, which limits the penetration depth of the electric field to the urethral wall.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 18, 2011
    Inventors: Daniel Gelbart, Lindsay S. Machan
  • Patent number: 7983391
    Abstract: To reduce X-ray exposure, an area of interest is selected in the image. The image of the selected area is updated frequently, comparable to rate of updates used today for the whole image. The rest of the image is updated at a significantly lower rate. Since the area of interest normally is a small part of the overall area, the total exposure is reduced significantly. A movable X-ray shield placed near the X-ray source blocks the radiation from areas outside the area of interest. The shield automatically retracts when the complete image is updated. The area of interest can be selected by the user or automatically selected based on activity in the image.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: July 19, 2011
    Inventors: Lindsay S. Machan, Daniel Gelbart
  • Publication number: 20110118825
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: June 22, 2010
    Publication date: May 19, 2011
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William L. Hunter, Lindsay S. Machan, A. Larry Arsenault
  • Publication number: 20110075805
    Abstract: To reduce X-ray exposure while improving image quality, an area of interest is selected in the image. The image of the selected area is updated frequently, comparable to rate of updates used today for the whole image. The rest of the image is updated at a significantly lower rate. Since the area of interest normally is a small part of the overall area, the total exposure is reduced significantly. A fast X-ray shutter, placed near the X-ray source, blocks the radiation from areas outside the area of interest. The shutter automatically retracts when the complete image is updated. The area of interest can be selected by the user or automatically selected based on activity in the image. Since most of the exposures are taken at a reduced collimation angle, limited by the area of interest, the area of interest is imaged at reduced scatter and better quality.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Inventors: Lindsay S. Machan, Daniel Gelbart
  • Publication number: 20110071612
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and taxol. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: June 17, 2010
    Publication date: March 24, 2011
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William L. Hunter, Lindsay S. Machan, A. Larry Arsenault
  • Publication number: 20110066251
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and taxol. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: June 22, 2010
    Publication date: March 17, 2011
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William L. HUNTER, Lindsay S. Machan, A. Larry Arsenault
  • Publication number: 20110034823
    Abstract: A stent balloon is provided with two conductive rings, created by a thin metallized coating deposited directly on the balloon, adjacent to the ends of the stent. The impedance between those rings and the body of the patient is measured at different AC frequencies. As the balloon approaches the vessel wall the impedance increases rapidly. Once the balloon forms full contact with vessel wall the impedance increases slowly. The changing impedance provides a guide for optimal apposition of the stent. The same conductive rings can also detect stent slippage and stent position relative to the balloon. With the addition of an extra conductive pad and wire, stent spring-back can be measured and corrected for.
    Type: Application
    Filed: September 13, 2010
    Publication date: February 10, 2011
    Inventors: Daniel Gelbart, Lindsay S. Machan
  • Publication number: 20100292314
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: June 22, 2010
    Publication date: November 18, 2010
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William L. HUNTER, Lindsay S. Machan, A. Larry Arsenault, Helen M. Burt, John K. Jackson, Stephen K. Dordunoo
  • Publication number: 20100272238
    Abstract: To reduce X-ray exposure, an area of interest is selected in the image. The image of the selected area is updated frequently, comparable to rate of updates used today for the whole image. The rest of the image is updated at a significantly lower rate. Since the area of interest normally is a small part of the overall area, the total exposure is reduced significantly. A movable X-ray shield placed near the X-ray source blocks the radiation from areas outside the area of interest. The shield automatically retracts when the complete image is updated. The area of interest can be selected by the user or automatically selected based on activity in the image.
    Type: Application
    Filed: April 27, 2009
    Publication date: October 28, 2010
    Inventors: Lindsay S. Machan, Daniel Gelbart
  • Patent number: 7820193
    Abstract: The present invention is directed to a stent comprising (a) a balloon expandable coronary stent; and (b) paclitaxel, in an amount that when tested in a chick chorioallantoic membrane assay is anti-angiogenic.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: October 26, 2010
    Assignee: Angiotech Pharmaceuticals, Inc.
    Inventors: William L. Hunter, Lindsay S. Machan, A. Larry Arsenault
  • Publication number: 20100240742
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 23, 2010
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: WILLIAM L. HUNTER, LINDSAY S. MACHAN, A. LARRY ARSENAULT, HELEN M. BURT, JOHN K. JACKSON, STEPHEN K. DORDUNOO
  • Publication number: 20100174356
    Abstract: Stent grafts are provided comprising an endoluminal stent and a graft, wherein the stent graft releases an agent which induces the in vivo adhesion of the stent graft to vessel walls, or, otherwise induces or accelerates an in vivo fibrotic reaction causing said stent graft to adhere to vessel wall. Also provided are methods for making and using such stent grafts.
    Type: Application
    Filed: December 30, 2009
    Publication date: July 8, 2010
    Applicants: The University of British Columbia
    Inventors: Lindsay S. MACHAN, John K. Jackson, William L. Hunter