Patents by Inventor Vijay Dhaka

Vijay Dhaka 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: 20180303583
    Abstract: Non-sliding orthodontic appliances may include an archwire having male fasteners for locking in place with brackets in a non-sliding manner and interproximal loops for exerting forces on the brackets. Appropriate forces may be calculated according to vectors between initial and ideal tooth positions. The brackets may be transferred to a patient's teeth using indirect bonding trays which contain slots for holding and aligning each bracket. The trays may include integrated handles for facilitating handling, may be sectioned into smaller pieces for easier application, and/or may be labeled for facilitating proper registration. Superposition of a digital placement plan and clinical model after bonding may illustrate the accuracy of bracket placement. The archwire may comprise atraumatic ends to avoid patient discomfort. A color registration system can be used to facilitate the attachment of the archwire to the brackets. The archwire may be locked into place with the brackets using crimpable stops.
    Type: Application
    Filed: April 19, 2018
    Publication date: October 25, 2018
    Inventors: Hongsheng Tong, Philong John Pham, Allen Huynh, Robert Lee, Vijay Dhaka
  • Publication number: 20180153651
    Abstract: Systems and methods for fabricating indirect bonding trays are disclosed. Physical models of a patient's teeth can be created with non-functional placeholder brackets, impressions of which can be transferred to indirect bonding trays. This can create wells in which functional brackets can be placed into, reducing errors created from transferring functional brackets from the physical model onto the indirect bonding trays.
    Type: Application
    Filed: November 30, 2017
    Publication date: June 7, 2018
    Inventors: Hongsheng Tong, Robert Lee, Vijay Dhaka, Allen Huynh
  • Patent number: 7582085
    Abstract: A system for facilitating the placement of a catheter within the human body, in a lumen or vessel such as the fallopian tubes, and controlling the catheter after placement. The system coordinates the operation of treatment electrodes on the catheter with informative displays and prompts to an operator, based on information derived from electrical parameters of position detection electrodes on the catheter.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: September 1, 2009
    Assignee: Cytyc Corporation
    Inventors: Brett S. Bowman, Vijay Dhaka, Kenneth Kitlas, Douglas C. Harrington
  • Publication number: 20070100405
    Abstract: A working end of a catheter includes at least one therapeutic element, such as a resistive heating element, usable to deliver energy for ligating, or reducing the diameter of, a hollow anatomical structure. In certain examples, the catheter includes a lumen to accommodate a guide wire or to allow fluid delivery. In certain embodiments, a balloon is inflated to place resistive element(s) into apposition with a hollow anatomical structure and to occlude the structure. Indexing devices and methods are also disclosed for successively treating portions of the hollow anatomical structure. In certain examples, marks along the catheter shaft provide visual verification to the physician of the relative position of the therapeutic element of the catheter. Embodiments of indexing devices may include pairs of rings and/or hinged arms that move a catheter a desired indexed position between successive treatments.
    Type: Application
    Filed: July 21, 2006
    Publication date: May 3, 2007
    Inventors: Russell Thompson, Brady Esch, Robert McRae, Michael Abelmann, Brian Farley, Vijay Dhaka, Fiona Sander
  • Publication number: 20070016272
    Abstract: A catheter includes multiple primary leads to deliver energy for ligating a hollow anatomical structure. Each of the primary leads includes a resistive element located at the working end of the catheter. Separation is maintained between the leads such that each lead can individually receive power. The catheter can include a lumen to accommodate a guide wire or to allow fluid delivery. Energy is applied until the diameter of the hollow anatomical structure is reduced to the point where occlusion is achieved. In one embodiment, a balloon is inflated to place the resistive elements into apposition with a hollow anatomical structure and to occlude the structure before the application of energy. The inflated balloon impairs blood flow and facilitates the infusion of saline, or medication, to the hollow anatomical structure in order to reduce the occurrence of coagulation and to improve the heating of the structure by the catheter.
    Type: Application
    Filed: September 27, 2005
    Publication date: January 18, 2007
    Inventors: Russell Thompson, Arthur Zikorus, Fiona Sander, Vijay Dhaka, Brady Esch
  • Publication number: 20050033281
    Abstract: A system for facilitating the placement of a catheter within the human body, in a lumen or vessel such as the fallopian tubes, and controlling the catheter after placement. The system coordinates the operation of treatment electrodes on the catheter with informative displays and prompts to an operator, based on information derived from electrical parameters of position detection electrodes on the catheter.
    Type: Application
    Filed: August 24, 2004
    Publication date: February 10, 2005
    Inventors: Brett Bowman, Vijay Dhaka, Kenneth Kitlas, Douglas Harrington
  • Patent number: 6780182
    Abstract: A system for facilitating the placement of a catheter within the human body, in a lumen or vessel such as the fallopian tubes, and controlling the catheter after placement. The system coordinates the operation of treatment electrodes on the catheter with informative displays and prompts to an operator, based on information derived from electrical parameters of position detection electrodes on the catheter.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: August 24, 2004
    Assignee: Adiana, Inc.
    Inventors: Brett S. Bowman, Vijay Dhaka, Kenneth Kitlas, Douglas C. Harrington
  • Publication number: 20030220636
    Abstract: A system for facilitating the placement of a catheter within the human body, in a lumen or vessel such as the fallopian tubes, and controlling the catheter after placement. The system coordinates the operation of treatment electrodes on the catheter with informative displays and prompts to an operator, based on information derived from electrical parameters of position detection electrodes on the catheter.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 27, 2003
    Applicant: Adiana, Inc.
    Inventors: Brett S. Bowman, Vijay Dhaka, Kenneth Kitlas, Douglas C. Harrington