Patents by Inventor Anders Halldin

Anders Halldin 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: 11426261
    Abstract: The present invention relates to a fixture for insertion into a bore hole arranged in bone tissue, comprising a threaded leading portion and a threaded trailing portion located coronally of the leading portion, wherein the threading of the leading portion has at least one first thread spiral, wherein the threading of the trailing portion has at least one more thread spiral than the threading in the leading portion, wherein the threading of the trailing portion and the threading of the leading portion have the same or substantially the same lead, wherein the profile of at least one of the thread spirals in the trailing portion is, at least along a portion of its length, substantially the same as the profile of the outermost parts of said first thread spiral in the leading portion, and wherein the at least one thread spiral in the trailing portion having substantially the same profile as the outermost part of said first thread spiral in the leading portion is arranged to follow the spiral path of that thread sp
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: August 30, 2022
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Stig Hansson, Anders Halldin
  • Patent number: 11413119
    Abstract: A fixture for insertion into a bore hole arranged in bone tissue is provided. The fixture has a threaded leading portion provided with at least one cutting edge for creating a female thread in the bone tissue, and a threaded trailing portion following the leading portion in the created female thread. Compared to the geometry of a thread peak of said cutting edge of the leading portion, a thread peak of the trailing portion is displaced or overdimensioned in at least one of the coronal and apical directions of the fixture so that a strain is provided to the bone when said displaced or overdimensioned thread peak engages with the created female thread. A fixture set for creating a strain is also provided, the set includes a fixture and a separate thread maker.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: August 16, 2022
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Stig Hansson, Anders Halldin
  • Publication number: 20200000558
    Abstract: A fixture for insertion into a bore hole arranged in bone tissue is provided. The fixture has a threaded leading portion provided with at least one cutting edge for creating a female thread in the bone tissue, and a threaded trailing portion following the leading portion in the created female thread. Compared to the geometry of a thread peak of said cutting edge of the leading portion, a thread peak of the trailing portion is displaced or overdimensioned in at least one of the coronal and apical directions of the fixture so that a strain is provided to the bone when said displaced or overdimensioned thread peak engages with the created female thread. A fixture set for creating a strain is also provided, the set comprising a fixture and a separate thread maker.
    Type: Application
    Filed: September 11, 2019
    Publication date: January 2, 2020
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Stig HANSSON, Anders HALLDIN
  • Publication number: 20180303585
    Abstract: The present invention relates to a fixture for insertion into a bore hole arranged in bone tissue, comprising a threaded leading portion and a threaded trailing portion located coronally of the leading portion, wherein the threading of the leading portion has at least one first thread spiral, wherein the threading of the trailing portion has at least one more thread spiral than the threading in the leading portion, wherein the threading of the trailing portion and the threading of the leading portion have the same or substantially the same lead, wherein the profile of at least one of the thread spirals in the trailing portion is, at least along a portion of its length, substantially the same as the profile of the outermost parts of said first thread spiral in the leading portion, and wherein the at least one thread spiral in the trailing portion having substantially the same profile as the outermost part of said first thread spiral in the leading portion is arranged to follow the spiral path of that thread sp
    Type: Application
    Filed: June 28, 2018
    Publication date: October 25, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Stig HANSSON, Anders HALLDIN
  • Patent number: 9782239
    Abstract: The invention relates to a fixture, such as a dental fixture, for insertion into a bore hole arranged in bone tissue. The fixture has two condensation portions, which may be designed to provide the same or different tensile strain levels to the cortical and cancellous bone tissue, respectively. The invention also relates to a thread maker for making a female thread in bone tissue prior to insertion of a fixture. The invention further relates to a fixture set, having a thread maker and a fixture.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: October 10, 2017
    Assignee: DENTSPLY International Inc
    Inventors: Stig Hansson, Anders Halldin
  • Publication number: 20160113740
    Abstract: According to an aspect of the invention, in a set of male dental components, such as abutment screws, each male dental component has a threaded portion with different core diameter. Each male dental component is to be connected to a mating female dental component, such as an abutment. The smaller core diameter a threaded portion has, the higher friction is provided when the male dental component is finally tightened to its mating female dental component, even though the same insertion torque is applied to all male dental components.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 28, 2016
    Applicant: DENTSPLY International Inc.
    Inventors: Mattias Dahlstrom, Anders Halldin
  • Patent number: 9248007
    Abstract: According to an aspect of the invention, in a set of male dental components, such as abutment screws, each male dental component has a threaded portion with different core diameter. Each male dental component is to be connected to a mating female dental component, such as an abutment. The smaller core diameter a threaded portion has, the higher friction is provided when the male dental component is finally tightened to its mating female dental component, even though the same insertion torque is applied to all male dental components.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: February 2, 2016
    Assignee: DENTSPLY International Inc.
    Inventors: Mattias Dahlström, Anders Halldin
  • Patent number: 9226804
    Abstract: The present invention relates to a fixture, such as a dental fixture, for insertion into a bore hole arranged in bone tissue, comprising a threaded leading portion and a threaded trailing portion located coronally of the leading portion. By a widened threading at the trailing portion, the bone tissue is subjected to a static strain beyond the yield strain of the bone tissue. The invention also relates to a fixture set and to a method of insertion of a fixture into a bore hole arranged in bone tissue.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: January 5, 2016
    Assignee: DENTSPLY International Inc.
    Inventors: Anders Halldin, Stig Hansson, Johan Holmström
  • Publication number: 20150099240
    Abstract: The present invention relates to a set of fixtures for installation in bone tissue. Each fixture provides a static strain to the bone which is different from the static strain provided by the other fixtures of the set. The difference in static strain may be at least with respect to magnitude and/or axial extension. The invention also relates to an implantation system and a method of selecting a fixture from a set of fixtures.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 9, 2015
    Inventors: STIG HANSSON, ANDERS HALLDIN
  • Patent number: 8888487
    Abstract: The present invention relates to a set of fixtures for installation in bone tissue. Each fixture provides a static strain to the bone which is different from the static strain provided by the other fixtures of the set. The difference in static strain may be at least with respect to magnitude and/or axial extension. The invention also relates to an implantation system and a method of selecting a fixture from a set of fixtures.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: November 18, 2014
    Assignee: DENTSPLY International Inc.
    Inventors: Stig Hansson, Anders Halldin
  • Publication number: 20130273499
    Abstract: The present invention relates to a set of fixtures for installation in bone tissue. Each fixture provides a static strain to the bone which is different from the static strain provided by the other fixtures of the set. The difference in static strain may be at least with respect to magnitude and/or axial extension. The invention also relates to an implantation system and a method of selecting a fixture from a set of fixtures.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 17, 2013
    Inventors: Stig HANSSON, Anders HALLDIN
  • Publication number: 20120270180
    Abstract: According to an aspect of the invention, in a set of male dental components, such as abutment screws, each male dental component has a threaded portion with different core diameter. Each male dental component is to be connected to a mating female dental component, such as an abutment. The smaller core diameter a threaded portion has, the higher friction is provided when the male dental component is finally tightened to its mating female dental component, even though the same insertion torque is applied to all male dental components.
    Type: Application
    Filed: April 19, 2012
    Publication date: October 25, 2012
    Applicant: DENTSPLY INTERNATIONAL INC.
    Inventors: Mattias DAHLSTRÖM, Anders HALLDIN
  • Publication number: 20120264085
    Abstract: The invention relates to a fixture, such as a dental fixture, for insertion into a bore hole arranged in bone tissue. The fixture has two condensation portions which may be designed to provide the same or different tensile strain levels to the cortical and cancellous bone tissue, respectively. The invention also relates to a thread maker for making a female thread in bone tissue prior to insertion of a fixture. The invention further relates to a fixture set, comprising a thread maker and a fixture.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Inventors: Stig Hansson, Anders Halldin
  • Publication number: 20120264083
    Abstract: The present invention relates to a fixture, such as a dental fixture, for insertion into a bore hole arranged in bone tissue, comprising a threaded leading portion and a threaded trailing portion located coronally of the leading portion. By a widened threading at the trailing portion, the bone tissue is subjected to a static strain beyond the yield strain of the bone tissue. The invention also relates to a fixture set and to a method of insertion of a fixture into a bore hole arranged in bone tissue.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Inventors: Anders HALLDIN, Stig HANSSON, Johan HOLMSTRÖM
  • Publication number: 20120264084
    Abstract: The present invention relates to a fixture for insertion into a bore hole arranged in bone tissue, comprising a threaded leading portion and a threaded trailing portion located coronally of the leading portion.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Inventors: Stig HANSSON, Anders HALLDIN
  • Publication number: 20120264086
    Abstract: A fixture for insertion into a bore hole arranged in bone tissue is provided. The fixture has a threaded leading portion provided with at least one cutting edge for creating a female thread in the bone tissue, and a threaded trailing portion following the leading portion in the created female thread. Compared to the geometry of a thread peak of said cutting edge of the leading portion, a thread peak of the trailing portion is displaced or overdimensioned in at least one of the coronal and apical directions of the fixture so that a strain is provided to the bone when said displaced or overdimensioned thread peak engages with the created female thread. A fixture set for creating a strain is also provided, the set comprising a fixture and a separate thread maker.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Inventors: Stig HANSSON, Anders HALLDIN
  • Patent number: 8057229
    Abstract: At least one embodiment of the present invention relates to a dental implant for supporting a coronal component. In at least one embodiment, the implant includes a fixture part forming an apical bone contact part of the implant, an abutment part forming a coronal component support part of the implant, and an abutment screw, wherein said abutment part is arranged to, in an assembled state of said dental implant, be fixed to the fixture part by the abutment screw, and wherein a coronal end portion of the abutment screw is arranged to, in the assembled state, be positioned coronally of a coronal end portion of the abutment part. At least one embodiment of the present invention also relates to abutment structures and methods for implanting a dental implant.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: November 15, 2011
    Assignee: Astra Tech AB
    Inventors: Kent Engström, Anders Halldin
  • Publication number: 20090291412
    Abstract: At least one embodiment of the present invention relates to a dental implant for supporting a coronal component. In at least one embodiment, the implant includes a fixture part forming an apical bone contact part of the implant, an abutment part forming a coronal component support part of the implant, and an abutment screw, wherein said abutment part is arranged to, in an assembled state of said dental implant, be fixed to the fixture part by the abutment screw, and wherein a coronal end portion of the abutment screw is arranged to, in the assembled state, be positioned coronally of a coronal end portion of the abutment part. At least one embodiment of the present invention also relates to abutment structures and methods for implanting a dental implant.
    Type: Application
    Filed: March 3, 2008
    Publication date: November 26, 2009
    Inventors: Kent Engstrom, Anders Halldin
  • Patent number: 6951460
    Abstract: The invention relates to components for an improved system for pick-up impression making at a dental implantation site, including an abutment, an abutment replica and an impression coping. The invention also relates to a series of abutments and to a set comprising an abutment and an impression coping. The impression coping has a through passage extending from a coronal end to an apical end of the impression coping and includes an abutment surrounding region for surrounding the abutment. The abutment surrounding region has a coronal end, an apical end and an inner wall. The inner wall includes at least one abutment contact surface for contact with the abutment, and at least one space forming surface for being spaced apart from the abutment in order to provide a space between the space forming surface and the abutment.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: October 4, 2005
    Assignee: Astra Tech AB
    Inventors: Anders Halldin, Kent Engström
  • Patent number: 6824386
    Abstract: The invention relates to components for an improved system for pick-up impression making at a dental implantation site, including an abutment, an abutment replica and an impression coping. The invention also relates to a series of abutments and to a set comprising an abutment and an impression coping. The abutment includes an implant contacting region and a component support region, the component support region has a maximum diameter and extends coronally of the maximum diameter to a coronal end. The component support region also includes a component engagement arranged for releasable engagement with the component by linear displacement of the dental component in relation to the abutment. The component engagement is located at a position closer to the maximum diameter than to the coronal end of the component support region.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: November 30, 2004
    Assignee: Astra Tech AB
    Inventors: Anders Halldin, Kent Engström