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).
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Patent number: 9232988Abstract: 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: GrantFiled: May 5, 2012Date of Patent: January 12, 2016Inventors: Rohit C L Sachdeva, Kunio Chikami
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Publication number: 20140045136Abstract: 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: ApplicationFiled: May 5, 2012Publication date: February 13, 2014Inventors: Rohit C. L. Sachdeva, Kunio Chikami
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Patent number: 8377037Abstract: 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: GrantFiled: October 6, 2011Date of Patent: February 19, 2013Assignee: EVM Systems LLCInventors: Rohit C. L. Sachdeva, Petrus A. Besselink
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Patent number: 8272867Abstract: 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: GrantFiled: July 14, 2006Date of Patent: September 25, 2012Inventors: Kunio Chikami, Rohit C L Sachdeva
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Publication number: 20120022577Abstract: 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: ApplicationFiled: October 6, 2011Publication date: January 26, 2012Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
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Patent number: 8052670Abstract: 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: GrantFiled: May 2, 2006Date of Patent: November 8, 2011Assignee: EVM Systems LLCInventors: Rohit C. L. Sachdeva, Petrus A. Besselink
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Patent number: 7461005Abstract: 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: GrantFiled: January 30, 2006Date of Patent: December 2, 2008Assignee: Orametrix, Inc.Inventor: Rohit C. L. Sachdeva
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Patent number: 7037321Abstract: 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: GrantFiled: August 23, 2004Date of Patent: May 2, 2006Assignee: Memory Medical Systems, Inc.Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
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Patent number: 7003472Abstract: 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: GrantFiled: June 27, 2003Date of Patent: February 21, 2006Assignee: OraMetrix, Inc.Inventor: Rohit C. L. Sachdeva
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Patent number: 6780175Abstract: 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: GrantFiled: September 17, 1998Date of Patent: August 24, 2004Assignee: Memory Medical Systems, Inc.Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
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Publication number: 20040002873Abstract: 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: ApplicationFiled: June 27, 2003Publication date: January 1, 2004Applicant: OraMetrix, Inc.Inventor: Rohit C.L. Sachdeva
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Patent number: 6428634Abstract: 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: GrantFiled: April 24, 1997Date of Patent: August 6, 2002Assignee: Ormco CorporationInventors: Petrus A. Besselink, Rohit C. L. Sachdeva
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Publication number: 20020098460Abstract: 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: ApplicationFiled: March 18, 2002Publication date: July 25, 2002Applicant: Ormco CorporationInventors: Farrokh Farzin-Nia, Rohit C. L. Sachdeva, Thomas V. Selkee
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Patent number: 6358045Abstract: 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: GrantFiled: March 23, 2000Date of Patent: March 19, 2002Assignee: Ormco CorporationInventors: Farrokh Farzin-Nia, Rohit C. L. Sachdeva, Thomas V. Selkee
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Patent number: 6139316Abstract: 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: GrantFiled: January 26, 1999Date of Patent: October 31, 2000Inventors: Rohit C. L. Sachdeva, Farrokh Farzin-Nia, Lawrence M. Wolford
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Patent number: 6042374Abstract: 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: GrantFiled: January 14, 1998Date of Patent: March 28, 2000Assignee: Ormco CorporationInventors: Farrokh Farzin-Nia, Rohit C. L. Sachdeva, Thomas V. Selkee
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Patent number: 5980252Abstract: 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: GrantFiled: May 8, 1995Date of Patent: November 9, 1999Inventors: Mikhail L. Samchukov, Rohit C. L. Sachdeva, J. David Ross
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Patent number: 5885258Abstract: 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: GrantFiled: February 21, 1997Date of Patent: March 23, 1999Assignee: Memory Medical Systems, inc.Inventors: Rohit C. L. Sachdeva, Petrus A. Besselink
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Patent number: 5766004Abstract: 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: GrantFiled: September 5, 1996Date of Patent: June 16, 1998Assignee: Sofamor Danek Holdings, Inc.Inventors: Petrus Antonius Besselink, Rohit C. L. Sachdeva
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Patent number: RE35863Abstract: 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: GrantFiled: August 2, 1995Date of Patent: July 28, 1998Assignee: Ormco CorporationInventors: Rohit C. L. Sachdeva, Yoshiki Oshida