Patents by Inventor Alexander Arnold Frederik Adriaan Veenhof

Alexander Arnold Frederik Adriaan Veenhof 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: 11571204
    Abstract: A suture device is provided comprising an elongate body having a longitudinal axis and opposite proximal and distal ends. The distal end inserts into a wound and the proximal end operates the device. A suture needle connects with the elongate body at or near the distal end and is movable relative to the elongate body in longitudinal direction along a needle trajectory having a suturing space. A spreader connects with the elongate body at or near the distal end and engages tissue to be sutured adjacent the needle trajectory and provides a pulling force on the tissue to pull a portion of the tissue into the suturing space; and/or comprises a spring. The device is configured to urge at least a portion of the suture needle from a first position to a second position along a needle trajectory past a suturing space by a spring action of the spring.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: February 7, 2023
    Assignee: MEDICLOSE SOLUTIONS B.V.
    Inventors: Alexander Arnold Frederik Adriaan Veenhof, Micha Ilan Paalman
  • Patent number: 11241192
    Abstract: The invention relates to a system for predicting the viability of a body tissue in a patient. The system comprises a computing device, and a first pressure measuring device for measuring local perfusion pressure in the body tissue of the patient. This measuring device is connected to the computing device. A second pressure measuring device is provided for measuring the systemic perfusion pressure of the patient, said second pressure measuring device being connected to the computing device. A feedback indicator is connected to the computing device and is adapted to indicate the viability of the tissue calculated by the computing device on the basis of the measured local and systemic perfusion pressures. The invention also includes a method of predicting the viability of the body tissue and to the first pressure measuring device.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: February 8, 2022
    Assignee: Veenhof Medical Devices B.V.
    Inventors: Miguel Angel Cuesta Valentin, Alexander Arnold Frederik Adriaan Veenhof
  • Publication number: 20200375588
    Abstract: A suture device is provided comprising an elongate body having a longitudinal axis and opposite proximal and distal ends. The distal end inserts into a wound and the proximal end operates the device. A suture needle connects with the elongate body at or near the distal end and is movable relative to the elongate body in longitudinal direction along a needle trajectory having a suturing space. A spreader connects with the elongate body at or near the distal end and engages tissue to be sutured adjacent the needle trajectory and provides a pulling force on the tissue to pull a portion of the tissue into the suturing space; and/or comprises a spring. The device is configured to urge at least a portion of the suture needle from a first position to a second position along a needle trajectory past a suturing space by a spring action of the spring.
    Type: Application
    Filed: November 26, 2018
    Publication date: December 3, 2020
    Inventors: Alexander Arnold Frederik Adriaan Veenhof, Micha Ilan Paalman
  • Publication number: 20200337779
    Abstract: A method is described for testing the viability of a tissue of a patient for an anastomosis using a perfusion measuring device wherein the method may comprise: controlling at least one actuating structure of the perfusion measuring device to rapidly ramp up a force exerted on at least one test area of the tissue selected for an anastomosis, the force exerted on the at least one test area defining a local (systolic) perfusion pressure; and, during the ramp up of the force, the computer receiving a sensor signal from at least one sensor of the perfusion measuring device and a signal from a blood pressure device, the sensor signal being indicative of perfusion of blood through the micro vascularization in the first test area and the blood pressure signal being indicative of a general (systolic) blood pressure of the patient; controlling the first actuating structure to slowly ramp down the force exerted on the first test area, when the sensor signal signals the computer that the perfusion of the blood in the tis
    Type: Application
    Filed: January 7, 2019
    Publication date: October 29, 2020
    Applicant: VEENHOF MEDICAL DEVICES B.V.
    Inventor: Alexander Arnold Frederik Adriaan VEENHOF
  • Patent number: 10058324
    Abstract: A suture device includes a needle operating device movable longitudinally with respect to a housing between at least an insertion position and a needle transfer position. The needle operating device includes an elongate operating element arranged extending from a distal end of the housing to or near a housing proximal end. A needle holder connected at a distal end of the operating element holds two or more needles, with free ends directed in proximal direction. The holder is movable with respect to a protection device between at least a protecting position shielding the free ends, and a non-protecting position for the same. A needle receive device at a distal end of the housing receives the free ends when the operating device is moved to the transfer position. In at least the insertion position the holder and the protection device are spaced longitudinally from the housing to receive a tissue therebetween.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 28, 2018
    Assignee: STICHTING VU-VUMC
    Inventors: Rianne Irene Van Loenen, Micha Ilan Paalman, Alexander Arnold Frederik Adriaan Veenhof