Patents by Inventor Rohit Sachdeva

Rohit Sachdeva 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: 6860132
    Abstract: A robotic bending apparatus for bending archwires and other types of elongate, bendable medical devices into a desired configuration includes a first gripping tool and a moveable gripping tool. The first gripping tool can be either fixed with respect to a base or table for the robot or positioned at the end of robot am. The moveable gripping tool is mounted to the end of a moveable robot arm having a proximal portion also mounted to the base. The robot preferably comprises a six axis bending robot, in which the distal end of the moveable arm can move relative to the fixed gripping tool about three translational axes and three rotational axes. The gripping tools preferably incorporate force sensors which are used to determine overbends needed to get the desired final shape of the archwire. The robot may also include a resistive heating system in which current flows through the wire while the wire is held in a bent condition to heat the wire and thereby retain the bent shape of the wire.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: March 1, 2005
    Assignee: OraMetrix, Inc.
    Inventors: Werner Butscher, Friedrich Riemeier, Rüdger Rubbert, Thomas Weise, Rohit Sachdeva
  • Publication number: 20050043837
    Abstract: Interactive, computer based orthodontist treatment planning, appliance design and appliance manufacturing is described. A scanner is described which acquires images of the dentition which are converted to three-dimensional frames of data. The data from the several frames are registered to each other to provide a complete three-dimensional virtual model of the dentition. Individual tooth objects are obtained from the virtual model. A computer-interactive software program provides for treatment planning, diagnosis and appliance from the virtual tooth models. A desired occlusion for the patient is obtained from the treatment planning software. The virtual model of the desired occlusion and the virtual model of the original dentition provide a base of information for custom manufacture of an orthodontic appliance.
    Type: Application
    Filed: September 27, 2004
    Publication date: February 24, 2005
    Inventors: Rudger Rubbert, Thomas Weise, Friedrich Riemeier, Rohit Sachdeva, Peer Sporbert
  • Publication number: 20050038669
    Abstract: An interactive, unified workstation is described that unifies in a single system multitude of functions pertaining to a practitioners practice that would otherwise require disjointed, more expensive, and less efficient individual workstations dedicated to a specific, limited task or a sub-set of tasks. The invention is directed towards benchmarking for a practitioner's business practice, and for clinical aspects of treatment planning; and integrating overall patient care planning functions. The unified workstation further facilitates access to archived database resources and facilitates both knowledge base services to practitioners and also hybrid treatment planning, wherein different types of appliance systems (fixed, such as brackets and wires, or removable, such as aligning shells) may be used during the course of treatment.
    Type: Application
    Filed: May 2, 2003
    Publication date: February 17, 2005
    Inventors: Rohit Sachdeva, Sanjeev Taneja, Charles Abraham, Peer Sporbert, Phillip Getto, Jay Widdig
  • Patent number: 6851949
    Abstract: A method and apparatus for generating a three-dimensional digital model of a desired orthodontic structure include processing that begins by obtaining a three-dimensional model of an actual orthodontic structure, wherein the three-dimensional digital model is defined in x, y, z space. The processing then continues by generating an interim three-dimensional model of the desired orthodontic structure less teeth. The interim three-dimensional model is designed in x, y, z space and includes the desired placement of an occlusal plane, an upper-arch form, a lower-arch form, an upper-arch midline, and a lower-arch midline. The processing then continues by positioning the upper and lower teeth with respect to the interim digital model and the defined x, y, z space to obtain a first pass three-dimensional digital model of the desired orthodontic structure. The processing continues by determining whether achieving the first pass three-dimensional model is feasible.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: February 8, 2005
    Assignee: OraMetrix, Inc.
    Inventors: Rohit Sachdeva, Rüdger Rubbert
  • Publication number: 20050027245
    Abstract: A series of medical instruments can be made with the use of shape memory tube with a transformation temperature that is above or below the ambient temperature. In the first case, the material behaves with the shape memory effect and in the second case the behavior is superelastic. The wall of the tube has been provided with a plurality of slots in specific places, often near or at the distal end of the instrument, and in specific arrangements which allow local variations in diameter, shape, and/or length. These variations can either be caused by the memory effect during temperature change or by superelastic behavior during change of the mechanical influences on the memory metal by the surrounding material.
    Type: Application
    Filed: August 23, 2004
    Publication date: February 3, 2005
    Inventors: Rohit Sachdeva, Petrus Besselink
  • Publication number: 20040216503
    Abstract: A robotic bending apparatus for bending archwires and other types of elongate, bendable medical devices into a desired configuration includes a first gripping tool and a moveable gripping tool. The first gripping tool can be either fixed with respect to a base or table for the robot or positioned at the end of robot am. The moveable gripping tool is mounted to the end of a moveable robot arm having a proximal portion also mounted to the base. The robot preferably comprises a six axis bending robot, in which the distal end of the moveable arm can move relative to the fixed gripping tool about three translational axes and three rotational axes. The gripping tools preferably incorporate force sensors which are used to determine overbends needed to get the desired final shape of the archwire. The robot may also include a resistive heating system in which current flows through the wire while the wire is held in a bent condition to heat the wire and thereby retain the bent shape of the wire.
    Type: Application
    Filed: May 28, 2004
    Publication date: November 4, 2004
    Inventors: Werner Butscher, Friedrich Riemeier, Rudger Rubbert, Thomas Weise, Rohit Sachdeva
  • Publication number: 20040214128
    Abstract: A method and apparatus for facilitating placement and evaluation of virtual appliances on virtual teeth of an orthodontic patient are described. Positioning references comprising bracket height, occlusal plane, or any arbitrary plane are provided to facilitate desired placement of virtual appliances on virtual teeth model. The process can be applied with any dentition state of a patient such as malocclusion, target state from treatment, or intermediate monitored state during the course of a treatment. An unified workstation for treatment planning provides the computer software tools for verification, simulation and evaluation of the virtual appliance placement. The process enables proper planning of treatment for an orthodontic patient suffering from malocclusion involving bonding of virtual brackets to the surface of the patient's virtual teeth with archwires placed in the slots of the brackets, so as to realize the desired results from the treatment in the most desired manner.
    Type: Application
    Filed: March 2, 2004
    Publication date: October 28, 2004
    Inventors: Rohit Sachdeva, Peer Sporbert, Stephan Maetzel, Hans Imgrund, Claudia Strauss, Phillip Getto
  • Publication number: 20040214129
    Abstract: A method and apparatus for arch wire receptacle (e.g., brackets, bands, headgear tubes, etc.) optimization includes processing that begins by obtaining a digital model of an orthodontic structure of an orthodontic patient. The processing then continues by retrieving a digital model of an initial arch wire receptacle that was selected from a plurality of digital models of arch wire receptacles. The processing then continues by digitally placing the digital model of the initial arch wire receptacle on a given tooth of the digital model of the orthodontic structure to provide a digital arch wire receptacle placement. The process then proceeds by retrieving a digital model of an arch wire. For the given tooth, the processing continues by digitally modeling a force system on the tooth based on the digital model of the initial arch wire receptacle, the digital arch wire receptacle placement, and the digital model of the arch wire.
    Type: Application
    Filed: May 17, 2004
    Publication date: October 28, 2004
    Inventors: Rohit Sachdeva, Rudger Rubbert, Thomas Weise, Friedrich Riemeier
  • Publication number: 20040197727
    Abstract: A method and workstation for evaluation of an orthodontic treatment plan for a patient. The workstation is based on a computing platform having a graphical user interface, a processor and a computer storage medium containing digitized records pertaining to a patient including image data (3D image data and/or 2D image data). The workstation further includes a set of software instructions providing graphical user interface tools by which the user can create a proposed treatment plan (proposed position of the teeth at the end of treatment) in three dimensions. The workstation also provides tools for evaluation of the proposed treatment plan.
    Type: Application
    Filed: July 14, 2003
    Publication date: October 7, 2004
    Applicant: OraMetrix, Inc.
    Inventors: Rohit Sachdeva, Peer Sporbert, Stephan Maetzel, Hans Imgrund, Phillip Getto, Doke Evan Roberts
  • Patent number: 6755064
    Abstract: A robotic bending apparatus for bending archwires and other types of elongate, bendable medical devices into a desired configuration includes a first gripping tool and a moveable gripping tool. The first gripping tool can be either fixed with respect to a base or table for the robot or positioned at the end of robot am. The moveable gripping tool is mounted to the end of a moveable robot arm having a proximal portion also mounted to the base. The robot preferably comprises a six axis bending robot, in which the distal end of the moveable arm can move relative to the fixed gripping tool about three translational axes and three rotational axes. The gripping tools preferably incorporate force sensors which are used to determine overbends needed to get the desired final shape of the archwire. The robot may also include a resistive heating system in which current flows through the wire while the wire is held in a bent condition to heat the wire and thereby retain the bent shape of the wire.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: June 29, 2004
    Assignee: OraMetrix, Inc.
    Inventors: Werner Butscher, Friedrich Riemeier, Rüdger Rubbert, Thomas Weise, Rohit Sachdeva
  • Patent number: 6736638
    Abstract: A method and apparatus for arch wire receptacle (e.g., brackets, bands, headgear tubes, etc.) optimization includes processing that begins by obtaining a digital model of an orthodontic structure of an orthodontic patient. The processing then continues by retrieving a digital model of an initial arch wire receptacle that was selected from a plurality of digital models of arch wire receptacles. The processing then continues by digitally placing the digital model of the initial arch wire receptacle on a given tooth of the digital model of the orthodontic structure to provide a digital arch wire receptacle placement. The process then proceeds by retrieving a digital model of an arch wire. For the given tooth, the processing continues by digitally modeling a force system on the tooth based on the digital model of the initial arch wire receptacle, the digital arch wire receptacle placement, and the digital model of the arch wire.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: May 18, 2004
    Assignee: OraMetrix, Inc.
    Inventors: Rohit Sachdeva, Rudger Rubbert, Thomas Weise, Friedrich Riemeirer
  • Patent number: 6732558
    Abstract: A robotic bending apparatus for bending archwires and other types of elongate, bendable medical devices into a desired configuration includes a first gripping tool and a moveable gripping tool. The first gripping tool can be either fixed with respect to a base or table for the robot or positioned at the end of robot am. The moveable gripping tool is mounted to the end of a moveable robot arm having a proximal portion also mounted to the base. The robot preferably comprises a six axis bending robot, in which the distal end of the moveable arm can move relative to the fixed gripping tool about three translational axes and three rotational axes. The gripping tools preferably incorporate force sensors which are used to determine overbends needed to get the desired final shape of the archwire. The robot may also include a resistive heating system in which current flows through the wire while the wire is held in a bent condition to heat the wire and thereby retain the bent shape of the wire.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: May 11, 2004
    Assignee: OraMetrix, Inc.
    Inventors: Werner Butscher, Friedrich Riemeier, Rüdger Rubbert, Thomas Weise, Rohit Sachdeva
  • Publication number: 20040073417
    Abstract: An interactive, software-based treatment planning method to correct a malocclusion is described. The method can be performed on an orthodontic workstation in a clinic or at a remote location such as a lab or precision appliance manufacturing center. The workstation stores a virtual three-dimensional model of the dentition of a patient and patient records. The virtual model is manipulated by the user to define a target situation for the patient, including a target archform and individual tooth positions in the archform. Parameters for an orthodontic appliance, such as the location of orthodontic brackets and resulting shape of an orthodontic archwire, are obtained from the simulation of tooth movement to the target situation and the placement position of virtual brackets. The treatment planning can also be executed remotely by a precision appliance service center having access to the virtual model of the dentition.
    Type: Application
    Filed: October 9, 2003
    Publication date: April 15, 2004
    Applicant: OraMetrix, Inc.
    Inventors: Rudger Rubbert, Thomas Weise, Rohit Sachdeva, Hans Imgrund, Peer Sporbert, Mario Leichner, Jens Troeger, Dimitrij Kouzian, Stephan Maetzel
  • Publication number: 20040029068
    Abstract: A method and workstation for orthodontic treatment planning of a patient. The workstation is based on a computing platform having a graphical user interface, a processor and a computer storage medium containing digitized records pertaining to a patient including image data (3D image data and/or 2D image data). The workstation further includes a set of software instructions providing graphical user interface tools which the user marks a midline and an aesthetic occlusal plane in a two- or three-dimensional virtual model of the patient, marks an occlusal plane in the virtual model; selects a reference tooth in the virtual model; aligns virtual teeth in the virtual model in a proposed arrangement to treat the patient; manages space between the virtual teeth in the proposed arrangement; and repeats one or more of these steps in an iterative fashion to make any further adjustments in the proposed arrangement.
    Type: Application
    Filed: May 2, 2003
    Publication date: February 12, 2004
    Applicant: OraMetrix, Inc.
    Inventors: Rohit Sachdeva, Peer Sporbert, Stephan Maetzel, Hans Imgrund, Claudia Strauss, Phillip Getto, Sanjeev Taneja, Matthew Johnson, John Penman, Justyna Badura, Danesh De Silva
  • Patent number: 6688885
    Abstract: A method and apparatus for treating an orthodontic patient include processing that begins by generating digital information regarding the orthodontic patient by a site orthodontic system. The site orthodontic system then transmits the digital information to an orthodontic server, which creates an electronic patient record therefrom. The orthodontic server then generates an initial treatment from the electronic patient record, wherein the initial treatment plan includes precise steps to obtain a desired orthodontic structure. The orthodontic server then transmits a digital version of the initial treatment plan to the site orthodontic system. Upon confirmation from the site orthodontic system, the orthodontic server designs an orthodontic apparatus for one of the precise steps based on the treatment plan. The orthodontic apparatus is then fabricated and provided to the site orthodontic system.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: February 10, 2004
    Assignee: OraMetrix, Inc
    Inventors: Rohit Sachdeva, Ron Jennings, David M. Schaller, Thomas Weise, Rudger Rubbert, Friedrich Riemeier, Gary Sadow
  • Publication number: 20040015327
    Abstract: An integrated system is described in which digital image data of a patient, obtained from a variety of image sources, including CT scanner, X-Ray, 2D or 3D scanners and color photographs, are combined into a common coordinate system to create a virtual three-dimensional patient model. Software tools are provided for manipulating the virtual patient model to simulation changes in position or orientation of craniofacial structures (e.g., jaw or teeth) and simulate their affect on the appearance of the patient. The simulation (which may be pure simulations or may be so-called “morphing” type simulations) enables a comprehensive approach to planning treatment for the patient. In one embodiment, the treatment may encompass orthodontic treatment. Similarly, surgical treatment plans can be created. Data is extracted from the virtual patient model or simulations thereof for purposes of manufacture of customized therapeutic devices for any component of the craniofacial structures, e.g.
    Type: Application
    Filed: May 2, 2003
    Publication date: January 22, 2004
    Applicant: OraMetrix, Inc.
    Inventors: Rohit Sachdeva, Sanjeev Taneja, Peer Sporbert, Phillip Getto, Stephan Maetzel, Hans Imgrund, Charles L. Abraham
  • Patent number: 6648640
    Abstract: Interactive, computer based orthodontist treatment planning, appliance design and appliance manufacturing is described. A scanner is described which acquires images of the dentition which are converted to three-dimensional frames of data. The data from the several frames are registered to each other to provide a complete three-dimensional virtual model of the dentition. Individual tooth objects are obtained from the virtual model. A computer-interactive software program provides for treatment planning, diagnosis and appliance from the virtual tooth models. A desired occlusion for the patient is obtained from the treatment planning software. The virtual model of the desired occlusion and the virtual model of the original dentition provide a base of information for custom manufacture of an orthodontic appliance.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: November 18, 2003
    Assignee: Ora Metrix, Inc.
    Inventors: Rüdger Rubbert, Thomas Weise, Friedrich Riemeier, Rohit Sachdeva, Werner Butscher, Peer Sporbert, Hans Imgrund, Lutz Pfeil, Hans-Florian Geerdes, Dimitrij Kouzian, Mario Leichner, Stephan Maetzel, Peter See, Jens Troeger
  • Publication number: 20030194677
    Abstract: A method and apparatus for generating a orthodontic template that assists in the placement of an orthodontic apparatus includes processing that begins by obtaining a digital model of an orthodontic structure of an orthodontic patient. The processing continues by obtaining a selection of one of a plurality of orthodontic apparatuses for the orthodontic structure to produce a selected orthodontic apparatus. The processing then continues by obtaining a digital model of placement of the selected orthodontic apparatus on the digital model of the orthodontic structure. The processing then continues by retrieving a digital image of a tooth mounting apparatus (e.g., a bracket, a band, a headgear tube, etc.) of the selected apparatus for a given tooth.
    Type: Application
    Filed: April 14, 2003
    Publication date: October 16, 2003
    Applicant: OraMetrix, Inc.
    Inventors: Rohit Sachdeva, Rudger Rubbert, Thomas Weise, Friedrich Riemeier, Michael Placke, Mathew Johnson
  • Patent number: 6632089
    Abstract: An interactive, software-based treatment planning method to correct a malocclusion is described. The method can be performed on an orthodontic workstation in a clinic or at a remote location such as a lab or precision appliance manufacturing center. The workstation stores a virtual three-dimensional model of the dentition of a patient and patient records. The virtual model is manipulated by the user to define a target situation for the patient, including a target archform and individual tooth positions in the archform. Parameters for an orthodontic appliance, such as the location of orthodontic brackets and resulting shape of an orthodontic archwire, are obtained from the simulation of tooth movement to the target situation and the placement position of virtual brackets. The treatment planning can also be executed remotely by a precision appliance service center having access to the virtual model of the dentition.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: October 14, 2003
    Assignee: OraMetrix, Inc.
    Inventors: Rüdger Rubbert, Thomas Weise, Rohit Sachdeva, Hans Imgrund, Peer Sporbert, Mario Leichner, Jens Troeger, Dimitrij Kouzian, Stephan Maetzel
  • Patent number: 6587828
    Abstract: A method and apparatus for generating a patient treatment plan includes processing that begins by providing a list of health care services to a patient and/or care provider. The processing continues by prompting for input of digital information regarding the patient when a health care service has been selected. The processing continues by determining whether a sufficient amount of digital information has been received. If so, the processing continues by simulating treatment of a patient based on the digital information, a treatment objective, and normalized patient data. The processing then continues by generating the patient treatment plan in accordance with the simulating of the treatment when the simulated treatment results have been acknowledged.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: July 1, 2003
    Assignee: Ora Metrix, Inc.
    Inventor: Rohit Sachdeva