Patents by Inventor Pekka Vallittu

Pekka Vallittu 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: 20180200064
    Abstract: The present invention relates to an implant consisting of a surface layer consisting of fibres and a matrix, having a first surface and a second surface opposite each other, and having a thickness that is at most 5% of the largest dimension of said surface layer; a porous biodegradable part having a first surface and a second surface opposite each other, wherein its first surface is attached to the second surface of the surface layer and having a thickness of 1-8 mm; and a membrane layer made of collage having a first surface and a second surface opposite each other, wherein its first surface is attached to the second surface of the porous part without covering the edges of the porous part; wherein its first surface is attached to the second surface of the porous part wherein the porous part comprises material selected from the group consisting of bioactive glass, bioactive ceramic, hydroxyapatite, tricalciumphosphate and mixtures thereof.
    Type: Application
    Filed: July 1, 2016
    Publication date: July 19, 2018
    Applicant: Skulle Implants Oy
    Inventor: Pekka VALLITTU
  • Publication number: 20160243283
    Abstract: A method of coating a surface according to the present invention comprises the steps of abrading the surface to be coated with particles, then arranging a composite structure comprising a layer fibre fabric, a fibre bundle applied according to a pattern and particles of bioactive material in between the fibre bundles pattern, and a second fibre fabric. The method and coated implants manufactured by the method provide implants with good load bearing capabilities for use for example in hip implants.
    Type: Application
    Filed: August 27, 2014
    Publication date: August 25, 2016
    Applicant: Skulle Implants Oy
    Inventors: Olli KARHI, Pekka VALLITTU, Juha-Pekka NUUTINEN
  • Patent number: 9144630
    Abstract: The present invention relates to a composite comprising a structural part, a porous part, and at least two interconnecting parts arranged at a distance from each other and extending from the structural part to the porous part, thus connecting them to each other. The implant is characterized in that each interconnecting part is in the form of a band having a length, a width and a height, the width and the height both being independently at most 20% of the length of the band, and in that at least one of the interconnecting parts is at least partially embedded into the structural and porous parts.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: September 29, 2015
    Assignee: Skulle Implants Oy
    Inventors: Pekka Vallittu, Kalle Aitasalo, Matti Peltola, Lippo Lassila, Sari Tuusa, Toini Peltola
  • Patent number: 9084844
    Abstract: The present invention relates to an implant comprising at least two layers made of fibers and bioactive material arranged between said at least two layers, the bioactive material being selected from the group consisting of bioactive glass, hydroxyapatite, tricalciumphosphate and mixtures thereof. In the implant, at least one of the layers is at least mainly formed of a mesh, which is made of glass fibers having a diameter of 3-100 ?m, and wherein the mesh size is selected such that the bioactive material is retained within the implant. In addition, the layers are embedded in a matrix made of a resin selected from the group consisting of polyesters, epoxies, acrylates and mixtures thereof, and the layers are attached to each other along the contour of the implant.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: July 21, 2015
    Assignee: Skulle Implants Oy
    Inventor: Pekka Vallittu
  • Patent number: 9078954
    Abstract: The invention relates to a filler granule comprising a matrix component (1), at least two base particles (2) that are at least mostly embedded in the matrix component, and a fibrous component (3). The fibrous component is attached to at least one of the base particles. The invention also relates to uses of these filler granules as well as to composite materials containing them.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: July 14, 2015
    Assignee: POBI CONCEPT OY
    Inventors: Mervi Puska, Allan Aho, Pekka Vallittu
  • Publication number: 20150032224
    Abstract: The present invention relates to an implant comprising at least two layers made of fibers and bioactive material arranged between said at least two layers, the bioactive material being selected from the group consisting of bioactive glass, hydroxyapatite, tricalciumphosphate and mixtures thereof. In the implant, at least one of the layers is at least mainly formed of a mesh, which is made of glass fibers having a diameter of 3-100 ?m, and wherein the mesh size is selected such that the bioactive material is retained within the implant. In addition, the layers are embedded in a matrix made of a resin selected from the group consisting of polyesters, epoxies, acrylates and mixtures thereof, and the layers are attached to each other along the contour of the implant.
    Type: Application
    Filed: May 28, 2013
    Publication date: January 29, 2015
    Applicant: SKULLE IMPLANTS OY
    Inventor: Pekka Vallittu
  • Patent number: 8864825
    Abstract: The present invention relates to an implant system comprising implantable material in at least partially uncured form, contained in a closed casing, under vacuum and sterilized, and a closed bag containing the casing. The system is characterized in that at least 5% of the surface of the casing comprises sheet-like material having a thickness of 0.05-5 mm and having an original form, the sheet-like material being selected from the group consisting of metallic materials, polymers, bioceramic materials and composites thereof, provided that the material, once deformed from its original form to a changed form, is capable of maintaining that changed form unless subjected to external forces.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: October 21, 2014
    Assignee: Skulle Implants Oy
    Inventor: Pekka Vallittu
  • Publication number: 20130230563
    Abstract: The invention relates to a filler granule comprising a matrix component (1), at least two base particles (2) that are at least mostly embedded in the matrix component, and a fibrous component (3). The fibrous component is attached to at least one of the base particles. The invention also relates to uses of these filler granules as well as to composite materials containing them.
    Type: Application
    Filed: February 11, 2013
    Publication date: September 5, 2013
    Applicant: Pobi Concept Oy
    Inventors: Mervi Puska, Allan Aho, Pekka Vallittu
  • Publication number: 20120277743
    Abstract: The present invention relates to an implant system comprising implantable material in at least partially uncured form, contained in a closed casing, under vacuum and sterilised, and a closed bag containing the casing. The system is characterised in that at least 5% of the surface of the casing comprises sheet-like material having a thickness of 0.05-5 mm and having an original form, the sheet-like material being selected from the group consisting of metallic materials, polymers, bioceramic materials and composites thereof, provided that the material, once deformed from its original form to a changed form, is capable of maintaining that changed form unless subjected to external forces.
    Type: Application
    Filed: December 10, 2010
    Publication date: November 1, 2012
    Inventor: Pekka Vallittu
  • Publication number: 20120089237
    Abstract: The present invention relates to a composite comprising a structural part, a porous part, and at least two interconnecting parts arranged at a distance from each other and extending from the structural part to the porous part, thus connecting them to each other. The implant is characterised in that each interconnecting part is in the form of a band having a length, a width and a height, the width and the height both being independently at most 20% of the length of the band, and in that at least one of the interconnecting parts is at least partially embedded into the structural and porous parts.
    Type: Application
    Filed: January 29, 2010
    Publication date: April 12, 2012
    Inventors: Pekka Vallittu, Kalle Aitasalo, Matti Peltola, Lippo Lassila, Sari Tuusa
  • Publication number: 20090176192
    Abstract: A matrix band which includes fibers and a matrix, at least a portion of the matrix being at least partially uncured. The invention further relates to a dental restoration kit, a prepreg and the use of the matrix.
    Type: Application
    Filed: July 3, 2008
    Publication date: July 9, 2009
    Inventors: Pekka VALLITTU, Lippo Lassila, Antti Yli-Urpo, Arzu Tezvergil
  • Patent number: 7435764
    Abstract: The invention relates to a prepreg comprising a base part, said base part comprising fibers and a matrix, said matrix being at least partially uncured. The prepreg is characterized in that it further comprises a surface part consisting essentially of bioactive filler material, said bioactive filler material being in particle form and at least partially and at most partially embedded in said base part. The invention also relates to a composite obtainable by curing said prepreg. The invention further relates to a mineralizing sheet for treatment of hypersensitive teeth and to the use of said prepreg and composite.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: October 14, 2008
    Assignee: Stick Tech Oy
    Inventors: Pekka Vallittu, Antti Yli-Urpo, Lippo Lassila, Timo Närhi, Tuomas Waltimo
  • Patent number: 7354969
    Abstract: The invention relates to polymerizable multifunctional polymer composites and compositions, which are suitable for dental and medical applications, such as dental prostheses, filling materials, implants and the like. It also relates to a method for the manufacture of such polymerizable multifunctional polymer composites and compositions, and to the use of the multifunctional polymer composites and compositions in dental and medical applications. A multifunctional polymer composite or composition is manufactured from 30-99 wt % of a monomer mixture containing 30-99 wt % of a dendrimer or a combination of dendrimers and 1-70 wt % of a reactive solvent or a combination of reactive solvents, and 0.1-70 wt % of a nanofiller or a combination of nanofillers.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: April 8, 2008
    Assignee: Stick Tech OY
    Inventors: Pekka Vallittu, Lippo Lassila, Mikael Skrifvars, Eeva Viljanen, Antti Yli-Urpo
  • Publication number: 20080065123
    Abstract: The invention relates to a multilayer material comprising at least two layers of web and at least one layer of particles, said particles being arranged between said at least two layers of web. According to the invention at least a part of said multilayer material is made of bioactive glass and said particles are sol-gel derived silica particles. The invention also relates to different uses of said multilayer material.
    Type: Application
    Filed: June 29, 2005
    Publication date: March 13, 2008
    Inventors: Antti Yli-Urpo, Heimo Ylanen, Joni Korventausta, Hanna Arstila, Timo Narhi, Mikko Hupa, Pekka Vallittu
  • Patent number: 7235290
    Abstract: A prepreg containing fibers and a curable matrix, the prepreg having a core and a surface part encasing the core, where the matrix of the core and of the surface part are made of the same material and where the proportion of the matrix to the fibers is higher in the core than in the surface part. A composite obtainable from the prepreg as well as the use of the composite or prepreg are also disclosed.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: June 26, 2007
    Assignee: Stick Tech Oy
    Inventors: Pekka Vallittu, Lippo Lassila, Antti Yli-Urpo
  • Publication number: 20070054244
    Abstract: The invention relates to a prepreg comprising a base part, said base part comprising fibers and a matrix, said matrix being at least partially uncured. The prepreg is characterized in that it further comprises a surface part consisting essentially of bioactive filler material, said bioactive filler material being in particle form and at least partially and at most partially embedded in said base part. The invention also relates to a composite obtainable by curing said prepreg. The invention further relates to a mineralizing sheet for treatment of hypersensitive teeth and to the use of said prepreg and composite.
    Type: Application
    Filed: May 21, 2004
    Publication date: March 8, 2007
    Inventors: Pekka Vallittu, Antti Yli-Urpo, Lippo Lassila, Timo Narhi, Tuomas Waltimo
  • Publication number: 20060275734
    Abstract: The invention relates to a matrix band that is characterized in that it comprises fibers and a matrix, at least a portion of said matrix being at least partially uncured. The invention further relates to a dental restoration kit, a prepreg and the use of said matrix.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 7, 2006
    Inventors: Pekka Vallittu, Lippo Lassila, Antti Yli-Urpo, Arzu Tezvergil
  • Patent number: 7001181
    Abstract: The invention relates to an applicator system (1) for application of a prefabricated reinforced composite post or anchor in its non-cured form into a dentinal canal (3). The invention is characterized in that the applicator system (1) comprises a prefabricated fiber-reinforced composite post or anchor in its non-cured form comprising a matrix and fibers, and an applicator tube (5) having a first end and a second end, wherein the inner diameter dT of said tube (5) is at most 5% larger than the outer diameter DP/A of said post or anchor in its non-cured form, and the outer diameter DT of the second end of said tube (5) through which the post or anchor is applied into the dentinal canal (3) is 0,5-2 mm. The invention further relates to the use of said applicator system.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: February 21, 2006
    Assignee: Stick Tech Oy
    Inventors: Ilkka Kangasniemi, Pekka Vallittu
  • Patent number: 6881062
    Abstract: The invention relates to a method and silicone product for shaping a fibre product used in dentistry to reinforce a prosthetic appliance or a similar structure under construction to conform to the final location. The fibre product containing fibres and curable material is pressed by means of silicone material against the final location or a model thereof followed by curing the curable material present in the fibre product. The invention is characterized in that the silicone material is a polymerised, elastic and soft silicone material that has been shaped to a piece (10,11) corresponding to the size and shape of the fibre product to be shaped, and that when pressed, the silicone material adopts the shape of the final location or the model thereof.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: April 19, 2005
    Assignee: Stick Tech Oy
    Inventors: Ilkka Kangasniemi, Pekka Vallittu
  • Publication number: 20040166472
    Abstract: The invention relates to an applicator system (1) for application of a prefabricated reinforced composite post or anchor in its non-cured form into a dentinal canal (3). The invention is characterized in that the applicator system (1) comprises a prefabricated fiber-reinforced composite post or anchor in its non-cured form comprising a matrix and fibers, and an applicator tube (5) having a first end and a second end, wherein the inner diameter dT of said tube (5) is at most 5% larger than the outer diameter DP/A of said post or anchor in its non-cured form, and the outer diameter DT of the second end of said tube (5) through which the post or anchor is applied into the dentinal canal (3) is 0,5-2 mm. The invention further relates to the use of said applicator system.
    Type: Application
    Filed: April 9, 2004
    Publication date: August 26, 2004
    Inventors: Ilkka Kangasniemi, Pekka Vallittu