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).
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Patent number: 11426261Abstract: 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 spType: GrantFiled: June 28, 2018Date of Patent: August 30, 2022Assignee: DENTSPLY SIRONA INC.Inventors: Stig Hansson, Anders Halldin
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Patent number: 11413119Abstract: 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: GrantFiled: September 11, 2019Date of Patent: August 16, 2022Assignee: DENTSPLY SIRONA INC.Inventors: Stig Hansson, Anders Halldin
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Publication number: 20200000558Abstract: 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: ApplicationFiled: September 11, 2019Publication date: January 2, 2020Applicant: DENTSPLY SIRONA INC.Inventors: Stig HANSSON, Anders HALLDIN
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Publication number: 20180303585Abstract: 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 spType: ApplicationFiled: June 28, 2018Publication date: October 25, 2018Applicant: DENTSPLY SIRONA Inc.Inventors: Stig HANSSON, Anders HALLDIN
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Patent number: 9782239Abstract: 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: GrantFiled: April 12, 2012Date of Patent: October 10, 2017Assignee: DENTSPLY International IncInventors: Stig Hansson, Anders Halldin
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Publication number: 20160113740Abstract: 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: ApplicationFiled: December 28, 2015Publication date: April 28, 2016Applicant: DENTSPLY International Inc.Inventors: Mattias Dahlstrom, Anders Halldin
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Patent number: 9248007Abstract: 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: GrantFiled: April 19, 2012Date of Patent: February 2, 2016Assignee: DENTSPLY International Inc.Inventors: Mattias Dahlström, Anders Halldin
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Patent number: 9226804Abstract: 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: GrantFiled: April 12, 2012Date of Patent: January 5, 2016Assignee: DENTSPLY International Inc.Inventors: Anders Halldin, Stig Hansson, Johan Holmström
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Publication number: 20150099240Abstract: 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: ApplicationFiled: December 16, 2014Publication date: April 9, 2015Inventors: STIG HANSSON, ANDERS HALLDIN
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Patent number: 8888487Abstract: 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: GrantFiled: April 12, 2012Date of Patent: November 18, 2014Assignee: DENTSPLY International Inc.Inventors: Stig Hansson, Anders Halldin
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Publication number: 20130273499Abstract: 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: ApplicationFiled: April 12, 2012Publication date: October 17, 2013Inventors: Stig HANSSON, Anders HALLDIN
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Publication number: 20120270180Abstract: 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: ApplicationFiled: April 19, 2012Publication date: October 25, 2012Applicant: DENTSPLY INTERNATIONAL INC.Inventors: Mattias DAHLSTRÖM, Anders HALLDIN
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Publication number: 20120264085Abstract: 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: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Inventors: Stig Hansson, Anders Halldin
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Publication number: 20120264083Abstract: 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: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Inventors: Anders HALLDIN, Stig HANSSON, Johan HOLMSTRÖM
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Publication number: 20120264084Abstract: 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: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Inventors: Stig HANSSON, Anders HALLDIN
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Publication number: 20120264086Abstract: 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: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Inventors: Stig HANSSON, Anders HALLDIN
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Patent number: 8057229Abstract: 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: GrantFiled: March 3, 2008Date of Patent: November 15, 2011Assignee: Astra Tech ABInventors: Kent Engström, Anders Halldin
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Publication number: 20090291412Abstract: 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: ApplicationFiled: March 3, 2008Publication date: November 26, 2009Inventors: Kent Engstrom, Anders Halldin
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Patent number: 6951460Abstract: 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: GrantFiled: November 1, 2001Date of Patent: October 4, 2005Assignee: Astra Tech ABInventors: Anders Halldin, Kent Engström
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Patent number: 6824386Abstract: 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: GrantFiled: November 1, 2001Date of Patent: November 30, 2004Assignee: Astra Tech ABInventors: Anders Halldin, Kent Engström