Patents by Inventor Rohit C. L. Sachdeva

Rohit C. L. 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: 9232988
    Abstract: An orthodontic bracket having a slot formed by arm parts facing each other in the vertical direction, and an inner part, inserted into the slot, having a socket for holding a wire is disclosed. The shape of the socket is designed for applying desired forces to a tooth through the wire when the bracket is attached to the tooth. Forces can be changed simply by changing the inner part; replacing the bracket attached to the tooth. When the inner part is inserted into the slot, the inner part closes the slot and it is held in the position by the arm parts; enabling the wire to be securely held in its position.
    Type: Grant
    Filed: May 5, 2012
    Date of Patent: January 12, 2016
    Inventors: Rohit C L Sachdeva, Kunio Chikami
  • Publication number: 20140045136
    Abstract: An orthodontic device consisting of a bracket having a slot formed by arm parts facing each other in the vertical direction, and an inner part having a socket for holding a wire. Different forces depending on the socket can be applied to a tooth. Desired forces can be applied simply by changing the inner part; and without requiring changing of the brackets. The orthodontic device is characterized in that the opening of the slot is closed by inserting the inner part into the slot so that the inner part can be held by the arm parts; and the wire can be securely held in its position.
    Type: Application
    Filed: May 5, 2012
    Publication date: February 13, 2014
    Inventors: Rohit C. L. Sachdeva, Kunio Chikami
  • Patent number: 8377037
    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: Grant
    Filed: October 6, 2011
    Date of Patent: February 19, 2013
    Assignee: EVM Systems LLC
    Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
  • Patent number: 8272867
    Abstract: An orthodontic device consisting of a bracket having a slot formed by arm parts facing each other in the vertical direction, and an inner part having a socket for holding a wire. The orthodontic device is characterized in that the opening of the slot is closed by inserting the inner part into the slot so that the inner part can be held by the arm parts. Different torque depending on the socket can be applied to a tooth. A desired torque can be applied by only changing the inner part without changing the bracket.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: September 25, 2012
    Inventors: Kunio Chikami, Rohit C L Sachdeva
  • Publication number: 20120022577
    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: October 6, 2011
    Publication date: January 26, 2012
    Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
  • Patent number: 8052670
    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: Grant
    Filed: May 2, 2006
    Date of Patent: November 8, 2011
    Assignee: EVM Systems LLC
    Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
  • Patent number: 7461005
    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 health care services applicable to addressing the patient's treatment needs have been concurrently 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: January 30, 2006
    Date of Patent: December 2, 2008
    Assignee: Orametrix, Inc.
    Inventor: Rohit C. L. Sachdeva
  • Patent number: 7037321
    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: Grant
    Filed: August 23, 2004
    Date of Patent: May 2, 2006
    Assignee: Memory Medical Systems, Inc.
    Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
  • Patent number: 7003472
    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 health care services applicable to addressing the patient's treatment needs have been concurrently 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: June 27, 2003
    Date of Patent: February 21, 2006
    Assignee: OraMetrix, Inc.
    Inventor: Rohit C. L. Sachdeva
  • Patent number: 6780175
    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: Grant
    Filed: September 17, 1998
    Date of Patent: August 24, 2004
    Assignee: Memory Medical Systems, Inc.
    Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
  • Publication number: 20040002873
    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 health care services applicable to addressing the patient's treatment needs have been concurrently 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: Application
    Filed: June 27, 2003
    Publication date: January 1, 2004
    Applicant: OraMetrix, Inc.
    Inventor: Rohit C.L. Sachdeva
  • Patent number: 6428634
    Abstract: A method of processing a Ni—Ti—Nb based alloy which contains from about 4 to about 14 atomic percent Nb and in which the ratio of atomic percent Ni to atomic percent Ti is from about 3.8 to 1.2, comprising working the alloy sufficient to impart a textured structure to the alloy, at a temperature below the recrystallisation temperature of the alloy. Preferably, the alloy is worked at least 10%, by a technique such as rolling or drawing, or another technique which produces a similar crystal structure. The alloy has increased stiffness compared with Ni—Ti binary alloys with superelastic properties.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: August 6, 2002
    Assignee: Ormco Corporation
    Inventors: Petrus A. Besselink, Rohit C. L. Sachdeva
  • Publication number: 20020098460
    Abstract: A self-ligating orthodontic bracket comprised of a ligating member containing a coil spring segment for extending the ligating member over an archwire or retainer wire and over one or more tie wings to secure the archwire or retainer wire in the bottom of a slot in the bracket. The ligating member containing the coil spring may have ends that are engaged in opposing mesially-distally extending bores in one side of the bracket body, with the ligating member being engaged with one or more tie wings on an opposite side of the bracket body. Alternatively, the ligating member may form a closed loop with the ligating member engaged under both occlusally-projecting and gingivally-projecting tie wings or engaged under one or more tie wings on one side of the bracket body and passing through a mesially-distally extending bore on the opposite side of the bracket body.
    Type: Application
    Filed: March 18, 2002
    Publication date: July 25, 2002
    Applicant: Ormco Corporation
    Inventors: Farrokh Farzin-Nia, Rohit C. L. Sachdeva, Thomas V. Selkee
  • Patent number: 6358045
    Abstract: A self-ligating orthodontic bracket comprised of a ligating member containing a coil spring segment for extending the ligating member over an archwire or retainer wire and over one or more tie wings to secure the archwire or retainer wire in the bottom of a slot in the bracket. The ligating member containing the coil spring may have ends that are engaged in opposing mesially-distally extending bores in one side of the bracket body, with the ligating member being engaged with one or more tie wings on an opposite side of the bracket body. Alternatively, the ligating member may form a closed loop with the ligating member engaged under both occlusally-projecting and gingivally-projecting tie wings or engaged under one or more tie wings on one side of the bracket body and passing through a mesially-distally extending bore on the opposite side of the bracket body.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: March 19, 2002
    Assignee: Ormco Corporation
    Inventors: Farrokh Farzin-Nia, Rohit C. L. Sachdeva, Thomas V. Selkee
  • Patent number: 6139316
    Abstract: The present invention relates to a device for performing bone distraction and/or tooth movement, and more particularly to a widening or contracting device which is capable of effecting bone distraction in more than one plane of space simultaneously. In its broadest aspects, the present invention is a device that can be used for bone distraction or osteogenesis, as well as tooth movement, which includes an expandible (or contractible) member for affixation in the oral cavity of a patient. The device is adapted to provide distraction of a selected craniofacial bone, such as the mandible, or movement of teeth, simultaneously in more than one plane of space. The expandible (or contractible) member includes a mechanism for expanding (or contracting) the expandible (or contractible) member to achieve the desired distraction of the selected bone or movement of selected teeth.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: October 31, 2000
    Inventors: Rohit C. L. Sachdeva, Farrokh Farzin-Nia, Lawrence M. Wolford
  • Patent number: 6042374
    Abstract: A self-ligating orthodontic bracket comprised of a ligating member containing a coil spring segment for extending the ligating member over an archwire or retainer wire and over one or more tie wings to secure the archwire or retainer wire in the bottom of a slot in the bracket. The ligating member containing the coil spring may have ends that are engaged in opposing mesially-distally extending bores in one side of the bracket body, with the ligating member being engaged with one or more tie wings on an opposite side of the bracket body. Alternatively, the ligating member may form a closed loop with the ligating member engaged under both occlusally-projecting and gingivally-projecting tie wings or engaged under one or more tie wings on one side of the bracket body and passing through a mesially-distally extending bore on the opposite side of the bracket body.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: March 28, 2000
    Assignee: Ormco Corporation
    Inventors: Farrokh Farzin-Nia, Rohit C. L. Sachdeva, Thomas V. Selkee
  • Patent number: 5980252
    Abstract: A device and method is presented for enhancing the shape, mass, and strength of alveolar and intramembranous bone, primarily in areas of bony deficit. In one embodiment, the device is made up of a hollow body which forms a housing to contain a drive train and provide a surface for attaching mounting elements. A worm gear activating element which meshes with a threaded lead screw acts as the drive train. A carrier is coupled by threads to the lead screw. As the worm gear is turned, the lead screw rotates and causes the carrier to move along the axis of rotation of the lead screw. In this embodiment, the soft tissue in a region of tooth loss is reflected to expose the atrophic bone site. A piece of bone harvested from the exposed area or other bone attractant material is attached to the carrier. The soft tissue is adapted over the carrier and sutured, and the assembly is attached to available dental structures.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: November 9, 1999
    Inventors: Mikhail L. Samchukov, Rohit C. L. Sachdeva, J. David Ross
  • Patent number: 5885258
    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: Grant
    Filed: February 21, 1997
    Date of Patent: March 23, 1999
    Assignee: Memory Medical Systems, inc.
    Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
  • Patent number: 5766004
    Abstract: A medical/dental apparatus utilizing the properties of shape memory materials to variably control the spatial relationship between two or more elements having portions which are proximately disposed and overlapping relative to one another. Another portion of each element is connectable to part of a patient's body.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: June 16, 1998
    Assignee: Sofamor Danek Holdings, Inc.
    Inventors: Petrus Antonius Besselink, Rohit C. L. Sachdeva
  • Patent number: RE35863
    Abstract: By using titanium, titanium based alloys, or related metals or alloys, an orthodontic bracket can be manufactured which is lighter and stronger than any conventional type of bracket made of stainless steels, plastics and even ceramics. Ti based brackets have shown excellent corrosion resistance and possess good biocompatibility. Surface treatments including nitriding, diamond coating, pre-oxidation or shot-peening on the slot bottom surface of such brackets reduce the friction coefficient against the orthodontic archwire. Furthermore, the bonding strength may be enhanced by shot-peening, ion beam etching or reactive ion etching on the tooth contact surface of the base portion of the bracket.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: July 28, 1998
    Assignee: Ormco Corporation
    Inventors: Rohit C. L. Sachdeva, Yoshiki Oshida