Patents by Inventor Mark DE GREEF

Mark DE GREEF 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: 20260026779
    Abstract: A cannula insertion system includes: a contact sensor positioning system arranged to determine a suitable location for insertion of the cannula, where the contact sensor positioning system includes: a contact sensor having a contact surface to be placed at least partially on the human or animal body to enable measurement with the contact sensor, a positioning device configured to support and position the contact sensor, and a control device arranged to control the positioning device to position the contact sensor in a desired position. The contact sensor positioning system includes one or more sensors to determine a position and/or contact force related parameter representative for a position and/or contact force of the contact sensor, and a processing device to process the position and/or contact force related parameter and to provide a position control signal to the control device, where the contact sensor is an imaging sensor.
    Type: Application
    Filed: October 1, 2025
    Publication date: January 29, 2026
    Inventors: Toon Olaf Overbeeke, Brian Robert Joseph, Johannes Gerhard Daniël Karssen, Arris Cornelis Jonker, Guido van Schie, Mark de Greef
  • Patent number: 12458320
    Abstract: A cannula insertion system includes: a contact sensor positioning system arranged to determine a suitable location for insertion of the cannula, where the contact sensor positioning system includes: a contact sensor having a contact surface to be placed at least partially on the human or animal body to enable measurement with the contact sensor, a positioning device configured to support and position the contact sensor, and a control device arranged to control the positioning device to position the contact sensor in a desired position. The contact sensor positioning system includes one or more sensors to determine a position and/or contact force related parameter representative for a position and/or contact force of the contact sensor, and a processing device to process the position and/or contact force related parameter and to provide a position control signal to the control device, where the contact sensor is an imaging sensor.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: November 4, 2025
    Assignee: Vitestro Holding B.V.
    Inventors: Toon Olaf Overbeeke, Brian Robert Joseph, Johannes Gerhard Daniël Karssen, Arris Cornelis Jonker, Guido van Schie, Mark de Greef
  • Publication number: 20230027160
    Abstract: A cannula insertion system to insert a cannula into a human or animal body, includes: one or more sensors to determine a suitable location for insertion of the cannula, a cannula insertion device configured to insert the cannula into the human or animal body, a cannula insertion device positioning system to support and position the cannula insertion device, and a control device arranged to control the positioning system to position, on the basis of the determined location for insertion of the cannula, the cannula insertion device in a suitable position to insert the cannula into human or animal body, where the cannula insertion system includes a blood collection system to collect blood in one or more blood collection tubes supported by the blood collection system, where the blood collection system is movably arranged to at least partly follow movements of the cannula insertion device.
    Type: Application
    Filed: January 6, 2021
    Publication date: January 26, 2023
    Inventors: Toon Olaf Overbeeke, Brian Robert Joseph, Johannes Gerhard Daniël Karssen, Arris Cornelis Jonker, Mark De Greef, Guido Van Schie, Pascal Theodoor Wolkotte, Luuk Frans Paul Giesen, Johan Houdijn Beekhuis, Tomas De Boer, Laurie Nesia Johanna Bax
  • Patent number: 11423804
    Abstract: A computer-implemented method of generating a 3D model for dental simulation, comprising reading a file describing the surface of a 3D object having a volume; generating a voxel grid encompassing the 3D object, wherein the voxel grid contains a plurality of voxels; identifying a subset of voxels of the plurality of voxels which are located within the volume of the 3D object; generating a triangulated surface, wherein the triangulated surface encompasses the subset of voxels and defines the outer surface of the 3D model; assigning a density value to each voxel in the subset of voxels, wherein the subset of voxels defines the solid volume of the 3D model.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 23, 2022
    Assignee: Nissin Dental Products Inc.
    Inventors: Niels Van Den Braber, Mark De Greef
  • Patent number: 11386808
    Abstract: A computer-implemented method of generating a 3D model for dental simulation, comprising reading a file describing the surface of a 3D object having a volume; generating a voxel grid encompassing the 3D object, wherein the voxel grid contains a plurality of voxels; identifying a subset of voxels of the plurality of voxels which are located within the volume of the 3D object; generating a triangulated surface, wherein the triangulated surface encompasses the subset of voxels and defines the outer surface of the 3D model; assigning a density value to each voxel in the subset of voxels, wherein the subset of voxels defines the solid volume of the 3D model.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: July 12, 2022
    Assignee: Nissin Dental Products Inc.
    Inventors: Niels Van Den Braber, Mark De Greef
  • Publication number: 20220054201
    Abstract: A cannula insertion system includes: a contact sensor positioning system arranged to determine a suitable location for insertion of the cannula, where the contact sensor positioning system includes: a contact sensor having a contact surface to be placed at least partially on the human or animal body to enable measurement with the contact sensor, a positioning device configured to support and position the contact sensor, and a control device arranged to control the positioning device to position the contact sensor in a desired position. The contact sensor positioning system includes one or more sensors to determine a position and/or contact force related parameter representative for a position and/or contact force of the contact sensor, and a processing device to process the position and/or contact force related parameter and to provide a position control signal to the control device, where the contact sensor is an imaging sensor.
    Type: Application
    Filed: January 7, 2020
    Publication date: February 24, 2022
    Inventors: Toon Olaf Overbeeke, Brian Robert Joseph, Johannes Gerhard Daniël Karssen, Arris Cornelis Jonker, Guido van Schie, Mark de Greef
  • Publication number: 20190066537
    Abstract: A computer-implemented method of generating a 3D model for dental simulation, comprising reading a file describing the surface of a 3D object having a volume; generating a voxel grid encompassing the 3D object, wherein the voxel grid contains a plurality of voxels; identifying a subset of voxels of the plurality of voxels which are located within the volume of the 3D object; generating a triangulated surface, wherein the triangulated surface encompasses the subset of voxels and defines the outer surface of the 3D model; assigning a density value to each voxel in the subset of voxels, wherein the subset of voxels defines the solid volume of the 3D model.
    Type: Application
    Filed: March 2, 2017
    Publication date: February 28, 2019
    Inventors: Niels VAN DEN BRABER, Mark DE GREEF