Patents by Inventor Carl Van Lierde

Carl Van Lierde 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: 10346504
    Abstract: System or components such as software for 3D modelling of bodies is described. This can be realized by a computer based method for modelling a body by scanning a determined space divided into elementary spaces, each elementary space being assigned a signed distance parameter indicative of the distance of said elementary space to said body and a weight parameter indicative of the importance of the distance parameter; said scanning of said body providing scanned points and each scanned point thus obtained possibly modifying said signed distance and weight parameters of each elementary space of said determined space; wherein, each one of selected elementary spaces is modified by subdividing said selected elementary space into higher level elementary spaces defined by the same parameters; wherein, in order to decrease details of the model of said body, said elementary spaces are modified by replacing selected elementary spaces with lower level elementary spaces.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: July 9, 2019
    Assignee: DENTSPLY IMPLANTS NV
    Inventors: Carl Van Lierde, Joris Vanbiervliet, Pieter De Ceuninck, Stefaan Dhondt, Veerle Pattijn, Jan Heyninck
  • Publication number: 20180075210
    Abstract: A three-dimensional computer model of the patient's tooth, including the pulp chamber and root canals, is created by combining at least one grey value image of the tooth and/or surface information about at least part of the intra-orally visible part of the tooth with a statistical, parameterized shape model of each tooth type (upper or lower incisors, canines, pre-molars, molars) as the patient's tooth to be treated. This allows for planning and/or simulation of one or more root canal treatments on the computer model of the patient's tooth and that the dentist or dental specialist is given qualitative and/or quantitative information by the system in order to aid in adequately analyzing the risks related to performing the root canal treatment with the proposed or user-selected endodontic tools.
    Type: Application
    Filed: September 22, 2017
    Publication date: March 15, 2018
    Inventors: Carl VAN LIERDE, Veerle PATTIJN, Paul-Henri VALLOTTON
  • Patent number: 9805167
    Abstract: A three-dimensional computer model of the patient's tooth, including the pulp chamber and root canals, is created by combining at least one grey value image of the tooth and/or surface information about at least part of the intra-orally visible part of the tooth with a statistical, parameterized shape model of each tooth type (upper or lower incisors, canines, pre-molars, molars) as the patient's tooth to be treated. This allows for planning and/or simulation of one or more root canal treatments on the computer model of the patient's tooth and that the dentist or dental specialist is given qualitative and/or quantitative information by the system in order to aid in adequately analyzing the risks related to performing the root canal treatment with the proposed or user-selected endodontic tools.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: October 31, 2017
    Assignees: DENTSPLY IMPLANTS NV, MAILLEFER INSTRUMENTS HOLDING SARL
    Inventors: Carl Van Lierde, Veerle Pattijn, Paul-Henri Vallotton
  • Patent number: 9740960
    Abstract: Systems and methods, devices and software are described for use in image comparison such as required for medical planning such as in dental implantology or other applications that require registration of digital images. A method and system is described for automatically finding correspondences between two or more digital representations such as images of one or more 3D objects with an identical, partially identical or similar geometry. The method and system, devices and software have the advantage that although the different digital representations of the object may be influenced by either noise, or scatter, or occlusion, or clutter, or any combination of these, correspondence can be found.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: August 22, 2017
    Assignee: DENTSPLY IMPLANTS NV
    Inventors: Carl Van Lierde, Joris Vanbiervliet, Pieter De Ceuninck, Stefaan Dhondt, Veerle Pattijn, Jan Heyninck
  • Patent number: 9694539
    Abstract: A device for endodontic treatment simulation is described including: at least one physical tooth model including pulp chamber and root canals, manufactured by way of layered manufacturing or rapid prototyping techniques and corresponding to a real-life endodontic case. Methods and systems for designing and manufacturing the device are also described.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: July 4, 2017
    Assignees: MAILLEFER INSTRUMENTS HOLDING SARL, DENTSPLY IMPLANTS NV
    Inventors: Carl Van Lierde, Veerle Pattijn, Paul-Henri Valloton
  • Patent number: 9579170
    Abstract: The present invention provides a method for creating a personalized digital planning file for simulation of dental implant placement. After planning, the digital representation in a plaster model may be used to design and produce dedicated surgical templates to assist the surgeon in transferring the implant plan to a patient during medical intervention.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: February 28, 2017
    Assignee: Materialise Dental N.V.
    Inventors: Carl Van Lierde, Bert Van Roie
  • Patent number: 9138299
    Abstract: A computer based method and system for defining and representing a shape and geometry of an occlusal access cavity to the tooth roots prior to endodontic treatment, include the step or elements for: loading onto the computer information of the geometry of a tooth obtained via one or more imaging techniques, creation of a 3D computer model of the tooth, including its internal architecture, visualization of the computer model, visualization of the location(s) of the entrance(s) to root canal(s) relative to the tooths occlusal surface, and based on the locations of the root canal orifices a shape of the access cavity is calculated.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: September 22, 2015
    Assignees: MAILLEFER INSTRUMENTS HOLDING SARL, DENTSPLY IMPLANTS NV
    Inventors: Carl Van Lierde, Veerle Pattijn, Paul-Henri Valloton
  • Publication number: 20150248538
    Abstract: System or components such as software for 3D modelling of bodies is described. This can be realized by a computer based method for modelling a body by scanning a determined space divided into elementary spaces, each elementary space being assigned a signed distance parameter indicative of the distance of said elementary space to said body and a weight parameter indicative of the importance of the distance parameter; said scanning of said body providing scanned points and each scanned point thus obtained possibly modifying said signed distance and weight parameters of each elementary space of said determined space; wherein, each one of selected elementary spaces is modified by subdividing said selected elementary space into higher level elementary spaces defined by the same parameters; wherein, in order to decrease details of the model of said body, said elementary spaces are modified by replacing selected elementary spaces with lower level elementary spaces.
    Type: Application
    Filed: September 17, 2013
    Publication date: September 3, 2015
    Applicant: DENTSPLY IMPLANTS NV
    Inventors: Carl Van Lierde, Joris Vanbiervliet, Pieter De Ceuninck, Stefaan Dhondt, Veerle Pattijn, Jan Heyninck
  • Publication number: 20150235104
    Abstract: Systems and methods, devices and software are described for use in image comparison such as required for medical planning such as in dental implantology or other applications that require registration of digital images. A method and system is described for automatically finding correspondences between two or more digital representations such as images of one or more 3D objects with an identical, partially identical or similar geometry. The method and system, devices and software have the advantage that although the different digital representations of the object may be influenced by either noise, or scatter, or occlusion, or clutter, or any combination of these, correspondence can be found.
    Type: Application
    Filed: September 26, 2013
    Publication date: August 20, 2015
    Applicant: DENTSPLY IMPLANTS NV
    Inventors: Carl Van Lierde, Joris Vanbiervliet, Pieter De Ceuninck, Stefaan Dhondt, Veerle Pattijn, Jan Heyninck
  • Publication number: 20140322664
    Abstract: A computer based method and system for defining and representing a shape and geometry of an occlusal access cavity to the tooth roots prior to endodontic treatment, include the step or elements for: loading onto the computer information of the geometry of a tooth obtained via one or more imaging techniques, creation of a 3D computer model of the tooth, including its internal architecture, visualisation of the computer model, visualisation of the location(s) of the entrance(s) to root canal(s) relative to the tooths occlusal surface, and based on the locations of the root canal orifices a shape of the access cavity is calculated.
    Type: Application
    Filed: May 13, 2011
    Publication date: October 30, 2014
    Inventors: Carl Van Lierde, Veerle Pattijn, Paul-Henri Valloton
  • Publication number: 20140229145
    Abstract: A three-dimensional computer model of the patient's tooth, including the pulp chamber and root canals, is created by combining at least one grey value image of the tooth and/or surface information about at least part of the intra-orally visible part of the tooth with a statistical, parameterized shape model of each tooth type (upper or lower incisors, canines, pre-molars, molars) as the patient's tooth to be treated. This allows for planning and/or simulation of one or more root canal treatments on the computer model of the patient's tooth and that the dentist or dental specialist is given qualitative and/or quantitative information by the system in order to aid in adequately analyzing the risks related to performing the root canal treatment with the proposed or user-selected endodontic tools.
    Type: Application
    Filed: August 27, 2012
    Publication date: August 14, 2014
    Inventors: Carl Van Lierde, Veerle Pattijn, Paul-Henri Vallotton
  • Publication number: 20140228992
    Abstract: A device for endodontic treatment simulation is described including: at least one physical tooth model including pulp chamber and root canals, manufactured by way of layered manufacturing or rapid prototyping techniques and corresponding to a real-life endodontic case. Methods and systems for designing and manufacturing the device are also described.
    Type: Application
    Filed: May 11, 2012
    Publication date: August 14, 2014
    Inventors: Carl Van Lierde, Veerle Pattijn, Paul-Henri Valloton
  • Patent number: 8770972
    Abstract: Method for placing and manufacturing a dental superstructure, method for placing implants, and accessories used in these methods.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: July 8, 2014
    Assignee: Dentsply Implants NV
    Inventors: Bart Filip Jos Swaelens, Luc Vrielinck, Carl Van Lierde
  • Patent number: 8706672
    Abstract: A method for automatic, or semi-automatic, planning of dental treatment for a patient comprises: (a) obtaining data about an area which is to be treated and data about a face of a patient; (b) performing a computer-assisted analysis of the data to determine properties of at least the face of the patient; (c) creating a modified tooth set-up using a set of stored rules which make use of the determined facial properties. A three-dimensional representation simulates the appearance of the modified tooth set-up and the patient's face surrounding the treatment area. The method also determines properties of existing teeth and creates a modified tooth set-up which is also based on the existing teeth of the patient. The method can be implemented as software running on a workstation.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: April 22, 2014
    Assignee: Dentsply Implants NV
    Inventors: Katja Malfliet, Veerle Pattijn, Carl Van Lierde, Wilfried Vancraen
  • Publication number: 20130171580
    Abstract: A method and system are described for 3D digital endodontics characterized in that 3D imaging equipment such as a CT or MRI scanner, ultrasound or the like are used to digitize the infected tooth or teeth, a 3D representation of the root canal system is extracted from the image data and visualized on a computer screen, a surgical template is designed to guide the endodontic instruments to localize the root canal(s) intra-operatively and said guide is manufactured by means of a computer driven system (e.g. milling, rapid prototyping, etc.).
    Type: Application
    Filed: February 18, 2011
    Publication date: July 4, 2013
    Applicants: Maillefer Instruments Holding SARL, Materialise Dental NV
    Inventors: Carl Van Lierde, Paul-Henri Vallotton
  • Patent number: 8452436
    Abstract: The invention features computer based methods and systems for obtaining information about tooth movement caused by at least one orthodontic element fixed on a dentition. The invention also features computer programs for generating, when executed, a method for obtaining information about tooth movement caused by at least one orthodontic element fixed on a dentition, as well as non-transitory machine readable storage media containing such computer programs.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: May 28, 2013
    Assignee: Materialise Dental N.V.
    Inventors: Veerle Pattijn, Bert Van Roie, Carl Van Lierde
  • Publication number: 20130089837
    Abstract: A computer based method is used to design a healing cap of an implant. The method is based on a 3D computer plan of the implant comprising digital representations of positions of implants in the mouth of the patient. The method comprises loading the 3D implant plan into a computer and combining the 3D implant plan with information about a prosthetic setup. The method determines a marginal edge of a healing cap of an implant based on a 3D representation of the existing patient anatomy, the 3D implant plan and the prosthetic set-up. The healing cap is then manufactured to the custom design.
    Type: Application
    Filed: June 15, 2011
    Publication date: April 11, 2013
    Applicant: MATERIALISE DENTAL NV
    Inventors: Carl Van Lierde, Tim Van Cleynenbreugel
  • Publication number: 20120317080
    Abstract: A method and system for archiving 3D geometry information for a plurality of subjects, and on a particular part of the body (which may also be the whole body) is described. The method and system allow an organizing and an analyzing step, resulting in scalable characteristic components for the particular part of the body, and an approximation of the geometry of that particular part of the body for a specific subject by a combination of a sub-set of those characteristic components with corresponding scale factors, which are then stored.
    Type: Application
    Filed: February 21, 2011
    Publication date: December 13, 2012
    Applicants: MATERIALISE N.V., MATERIALISE DENTAL N.V.
    Inventors: Carl Van Lierde, Michel Janssens
  • Patent number: 8272870
    Abstract: An anchorage unit fits to a dental implant. A dental attachment for mounting to the anchorage unit has a first attachment part and a second attachment part. The attachment parts define an aperture for accommodating a portion of the anchorage unit with a boundary wall of the aperture on each of the attachment parts serving, in use, as a jaw for clamping against the portion of the anchorage unit. The aperture is of greater size than the portion of the anchorage unit to allow adjustment of the position of the attachment with respect to the anchorage unit. In another embodiment, a two-part anchoring assembly defines a pair of jaws for, in use, receiving and clamping against a portion of a dental attachment. The apparatus is particularly relevant when an attachment must be placed on more than one implant simultaneously.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: September 25, 2012
    Assignee: Materialise Dental N.V.
    Inventors: Carl Van Lierde, Alessio Esposti
  • Publication number: 20120010740
    Abstract: Method for placing and manufacturing a dental superstructure, method for placing implants, and accessories used in these methods.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 12, 2012
    Applicant: Materialise Dental N.V.
    Inventors: Bart Filip Jos SWAELENS, Luc Vrielinck, Carl Van Lierde