Patents by Inventor Fredrik Engman

Fredrik Engman 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: 20200214808
    Abstract: A dental implant assembly comprising a healing component (10) removably attachable to a coronal end of a dental implant (40) and an impression component (20) having an outer surface, an upper portion (21) and a lower portion (22) and being removably attachable to the healing component (10). The healing component (10) has an internal bore (13) for receiving at least part of the lower portion (22) of said impression component (20) therein and the internal bore having a shoulder on an inner surface thereof acting as an axial locator providing an endstop for axial movement of said impression component (20) within said bore (13). The assembly further comprises a rotational locator limiting rotational movement between said impression component (20) and said healing component (10), the rotational locator comprising a formation on said outer surface of the impression component (20) and/or a formation on said inner surface of said bore (13) of the healing component (10).
    Type: Application
    Filed: August 9, 2018
    Publication date: July 9, 2020
    Inventor: Fredrik ENGMAN
  • Patent number: 9375295
    Abstract: In an arrangement for obtaining reliable anchoring of a threaded implant in dentine, a hole is made in the bone substance. In the side wall of the hole it is possible to establish an internal threading which can cooperate with an external threading on the implant. The implant threading is arranged to force the bone substance out in essentially radial directions as a function of the extent to which the implant is screwed into the hole. The threading is arranged to effect greater forcing out of the bone substance at the outer parts of the hole than at the inner parts of the hole. The degree of forcing out is adapted in relation to the softness of the bone in order to achieve the reliable anchoring. Along at least part of the longitudinal direction of the implant, the implant threading can be given a non-circular configuration for the purpose of obtaining improved rotational stability in soft/weak bone.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: June 28, 2016
    Assignee: Nobel Biocare Services AG
    Inventors: Lennart Carlsson, Fredrik Engman, Roger Fromell, Lars Joerneus
  • Publication number: 20160022388
    Abstract: A set of surgical instruments for use in a surgical procedure to insert an implant, particularly a dental implant, in the bone of a patient comprises at least one drill hub configured for connection between a surgical drill handpiece and a drill. The drill is driveable by the drill handpiece via the drill hub. The drill hub has an end surface having defined therein a socket configured for receiving the drill. The socket has a defined depth to provide a predetermined extent of the drill from the end surface.
    Type: Application
    Filed: July 28, 2015
    Publication date: January 28, 2016
    Inventors: Christer Fässberg, Fredrik Engman
  • Publication number: 20150044639
    Abstract: In an arrangement for obtaining reliable anchoring of a threaded implant in dentine, a hole is made in the bone substance. In the side wall of the hole it is possible to establish an internal threading which can cooperate with an external threading on the implant. The implant threading is arranged to force the bone substance out in essentially radial directions as a function of the extent to which the implant is screwed into the hole. The threading is arranged to effect greater forcing out of the bone substance at the outer parts of the hole than at the inner parts of the hole. The degree of forcing out is adapted in relation to the softness of the bone in order to achieve the reliable anchoring. Along at least part of the longitudinal direction of the implant, the implant threading can be given a non-circular configuration for the purpose of obtaining improved rotational stability in soft/weak bone.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 12, 2015
    Inventors: Lennart Carlsson, Fredrik Engman, Roger Fromell, Lars Joerneus
  • Patent number: 8915735
    Abstract: In an arrangement for obtaining reliable anchoring of a threaded implant (3) in dentine, a hole (2) is made in the bone substance. In the side wall (2b) of the hole it is possible to establish an internal threading which can cooperate with an external threading (3d) on the implant. The implant threading is arranged to force the bone substance out in essentially radial directions as a function of the extent to which the implant is screwed into the hole. The threading is arranged to effect greater forcing out of the bone substance at the outer parts of the hole than at the inner parts of the hole. The degree of forcing out is adapted in relation to the softness of the bone in order to achieve the reliable anchoring. Along at least part of the longitudinal direction of the implant, the implant threading can be given a non-circular configuration for the purpose of obtaining improved rotational stability in soft/weak bone.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: December 23, 2014
    Assignee: Nobel Biocare Services AG
    Inventors: Lennart Carlsson, Fredrik Engman, Roger Fromell, Lars Jörneus
  • Patent number: 8328555
    Abstract: An implant for anchoring a tightly fitting prosthesis includes an externally threaded implant body configured to be screwed into bone using an insertion tool, the body having a first end and a second apex end, said first end being provided with an internal open ended axial bore, the implant being tapered such that the apex end is smaller in diameter than the first end where the taper is not greater than 2°. The implant is also provided with an incremental cutting face.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: December 11, 2012
    Assignee: Neoss Limited
    Inventor: Fredrik Engman
  • Patent number: 7309231
    Abstract: The present invention is directed to a threaded implant intended to be screwed into bone, preferably into jawbone, and for tightly fitting a prosthesis, including a spacer portion, in the screwed-in position. The implant body has an internal connection arrangement for rotationally locking said spacer, said arrangement also co-operating during positioning and insertion of the implant body with a tool and said arrangement having a low vertical height.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: December 18, 2007
    Assignee: Neoss Limited
    Inventor: Fredrik Engman
  • Publication number: 20070092851
    Abstract: The present invention is directed to a threaded implant intended to be screwed into bone, preferably into jawbone, and for tightly fitting a prosthesis, including a spacer portion in the screwed-in position. The implant body has an internal connection arrangement for rotationally locking said spacer, said arrangement also cooperating during positioning and insertion of the implant body with a tool and said arrangement having a low vertical height.
    Type: Application
    Filed: December 6, 2006
    Publication date: April 26, 2007
    Applicant: Neoss Limited
    Inventor: Fredrik Engman
  • Publication number: 20060121416
    Abstract: A dental impression coping which includes a set of components including an attachment screw access means through the impression material and not more than one attachment screw, that may be used for both pick-up type (open tray) or transfer tray (closed tray) impression moulding techniques. The impression components include an impression coping having non-rotational features and height specific retention means having an outer surface with its bottom end configured to reside preferably below the gingiva surrounding the implant. Means exist on the impression coping, to attach the impression coping to the implant for use in a transfer type impression application. By providing a means to access the attachment screw through the impression material a second impression application, the pick-up type impression application, can be performed, using the same screw that can be used also for the first impression application the transfer type impression application.
    Type: Application
    Filed: October 20, 2003
    Publication date: June 8, 2006
    Applicant: Neoss Limited
    Inventor: Fredrik Engman
  • Patent number: 7048541
    Abstract: An implant (1) has attachment and hole-insert parts (2, 3) with an outer surface or outer surfaces having external layer arrangements (6, 7). The implant can be provided in a known manner with threads (3a, 3b) on cylindrical and conical portions. The implant is made in principle in two production stages. In a first production stage, the outer surface or outer surfaces (6a) of the implant are given a relatively high roughness value and/or a relatively high degree of porosity. In a second stage, the uneven or porous surface thus obtained is coated with an oxide layer (7) which can be uniform or can have different thicknesses along the longitudinal and/or circumferential directions(s) of the implant. In one embodiment, the oxide layer (7) can be coated with a bone-growth agent or bone-growth-promoting agent and/or calcium phosphate (16), for example by means of chemical deposition, dipping or sputtering.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: May 23, 2006
    Assignee: Nobel Biocare AB
    Inventors: Jan Hall, Fredrik Engman
  • Publication number: 20060099549
    Abstract: A prosthetic dental abutment plastics coping configured such that the coping is not premounted to the abutment and is anatomically resemblant to a tooth.
    Type: Application
    Filed: June 13, 2003
    Publication date: May 11, 2006
    Inventor: Fredrik Engman
  • Patent number: 7008228
    Abstract: A self-tapping implant for use in a jawbone includes a body with plural thread spirals arranged thereon; a conically tapering portion arranged at a front end of the body and having one or more bone-chip recesses therein which accommodate bone material cut off during a tapping operation. The bone-chip recesses are formed by removal of material from the plural thread spirals and body. At least in the conically tapering portion, the plural thread spirals are materially reduced, and each of the materially reduced threads have a cutting edge which extends inward from an outer edge of a respective remaining thread part. Each cutting edge of a number of associated cutting edges of the materially reduced threads have a pointed shape which, in a cross section thereof, essentially follows a line which deviates from a first radius through a point of the pointed shape of the respective remaining thread part.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: March 7, 2006
    Assignee: Nobel Biocare AB
    Inventors: Göran Björn, Fredrik Engman, Lars Jörnéus
  • Patent number: 6966144
    Abstract: Apparatus and a method for controlling vermin either directly or indirectly via objects giving shelter to the vermin. Cooling of the vermin is effected by providing dry snow particles by passing pressurized carbon dioxide through a nozzle directed at the vermin. Smaller and larger snow particle sizes are allocated within a selected range of sizes and velocities. Environmentally friendly and rapid control of the vermin is achieved, and an effectively functioning cooling system is provided, which, by the gradual supply of snow, executes cooling through different velocities and sizes of the snow particles. In a initial cooling phase small snow particles provide cooling by sublimating and giving off cold rapidly. Larger snow particles then penetrate through the gas barrier that is created by the sublimating small snow particles to maintain the cooling effect.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: November 22, 2005
    Assignee: CTS Technologies AG
    Inventors: Bertil Eliasson, Per-Åke Hallberg, Lennart Carlsson, Fredrik Engman
  • Patent number: 6896517
    Abstract: A self-tapping implant for jawbone comprises a body (15) with threads arranged thereon, a conically tapering portion (12) arranged at its front end, and one or more spaces (4, 5, 6) which accommodate bone material cut off during tapping and which are formed by removal of material from the threads and body in question. Each materially reduced thread has a cutting edge (1a, 2a, 3a) which extends inwards from the outer edge of the respective remaining thread part and which can cooperate with the bone during tapping. Each cutting edge of a number of cutting edges has a pointed shape (1b, 2b, 3b) which, in the cross section of the thread in question, essentially follows a line which deviates from a radius (r) through the remaining thread part's front portion or the pointed shape's point (1b, 2b, 3b) in order in this way to form a cutting angle. Each cutting edge (1a, 2a, 3a) on a first remaining thread part (1, 2, 3) merges via a radius (r?) or curved part into a rear edge (e.g.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: May 24, 2005
    Assignee: Nobel Biocare AB
    Inventors: Göran Björn, Fredrik Engman, Lars Jörnéus
  • Publication number: 20050089818
    Abstract: An implant for anchoring a tightly fitting prosthesis includes an externally threaded implant body configured to be screwed into bone using an insertion tool, the body having a first end and a second apex end, said first end being provided with an internal open ended axial bore, the implant being tapered such that the apex end is smaller in diameter than the first end where the taper is not greater than 2°. The implant is also provided with an incremental cutting face.
    Type: Application
    Filed: October 4, 2002
    Publication date: April 28, 2005
    Inventor: Fredrik Engman
  • Publication number: 20050019731
    Abstract: A self-tapping implant for use in a jawbone includes a body with plural thread spirals arranged thereon; a conically tapering portion arranged at a front end of the body and having one or more bone-chip recesses therein which accommodate bone material cut off during a tapping operation. The bone-chip recesses are formed by removal of material from the plural thread spirals and body. At least in the conically tapering portion, the plural thread spirals are materially reduced, and each of the materially reduced threads have a cutting edge which extends inward from an outer edge of a respective remaining thread part. Each cutting edge of a number of associated cutting edges of the materially reduced threads have a pointed shape which, in a cross section thereof, essentially follows a line which deviates from a first radius through a point of the pointed shape of the respective remaining thread part.
    Type: Application
    Filed: September 24, 2004
    Publication date: January 27, 2005
    Applicant: NOBEL BIOCARE AB
    Inventors: Goran Bjorn, Fredrik Engman, Lars Jorneus
  • Publication number: 20030213162
    Abstract: Arrangement and application for executing control measures against vermin either directly or indirectly via objects giving shelter to the vermin, e.g. substrates of substances. The control measure is based on the rate of cooling the vermin, object, etc., with the help of dry snow particles to which smaller and larger sizes are allocated within a selected range of sizes and velocities are allocated within a selected range of velocities. The arrangement and the application arc associated with advantages in the sense that environmentally friendly and rapid control is achieved, and in that an effectively functioning cooling system is obtained, which, by the gradual supply of snow, executes cooling through different velocities and sizes of the snow particles. Rapid cooling of a defined target can be obtained in this way. In an initial phase the small snow particles contribute most to the cooling by sublimating and giving off cold rapidly.
    Type: Application
    Filed: June 16, 2003
    Publication date: November 20, 2003
    Inventors: Bertil Eliasson, Per-Ake Hallberg, Lennart Carlsson, Fredrik Engman
  • Patent number: 6626911
    Abstract: A threaded implant for screwing into jawbone and supporting a spacer element in the screwed-in position is provided. The implant includes a socket arrangement which can cooperate with a tool for screwing in the implant. The socket arrangement also secures the spacer element in an applied position. The socket arrangement includes two separate sockets, of which the first socket can cooperate with the tool and the second socket permits rotational locking of the spacer element.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: September 30, 2003
    Assignee: Nobel Biocare AB
    Inventors: Fredrik Engman, Lars Jörnéus
  • Publication number: 20030157460
    Abstract: An implant (1) has attachment and hole-insert parts (2, 3) with an outer surface or outer surfaces having external layer arrangements (6, 7). The implant can be provided in a known manner with threads (3a, 3b) on cylindrical and conical portions. The implant is made in principle in two production stages. In a first production stage, the outer surface or outer surfaces (6a) of the implant are given a relatively high roughness value and/or a relatively high degree of porosity. In a second stage, the uneven or porous surface thus obtained is coated with an oxide layer (7) which can be uniform or can have different thicknesses along the longitudinal and/or circumferential directions(s) of the implant. In one embodiment, the oxide layer (7) can be coated with a bone-growth agent or bone-growth-promoting agent and/or calcium phosphate (16), for example by means of chemical deposition, dipping or sputtering.
    Type: Application
    Filed: April 22, 2003
    Publication date: August 21, 2003
    Inventors: Jan Hall, Fredrik Engman
  • Publication number: 20020177105
    Abstract: The present invention is directed to a threaded implant intended to be screwed into bone, preferably into jawbone, and for tightly fitting a prosthesis, including a spacer portion in the screwed-in position. The implant body has an internal connection arrangement for rotationally locking said spacer, said arrangement also cooperating during positioning and insertion of the implant body with a tool and said arrangement having a low vertical height.
    Type: Application
    Filed: April 5, 2002
    Publication date: November 28, 2002
    Inventor: Fredrik Engman