Patents by Inventor Ilkka Kangasniemi
Ilkka Kangasniemi 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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Publication number: 20090324668Abstract: An implant containing a source of oxygen capable of releasing oxygen in the form of molecular oxygen or reactive oxygen species, and a material selected from the group consisting of biodegradable and/or bioactive glass, sol-gel produced silica and mixtures thereof. Also disclosed are uses of the implant and methods of making it.Type: ApplicationFiled: June 26, 2007Publication date: December 31, 2009Inventors: Ilkka Kangasniemi, Timo Peltola, Jukka Salonen
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Patent number: 7326422Abstract: Controllably dissolvable silica-xerogels prepared via sol-gel process and their use. A delivery device including controllably dissolvable silica-xerogel into which structure a biologically active agent is incorporated. Pharmaceutical preparations including this device. Medical devices for orthopedic and surgical purposes which contain controllably dissolvable silica-xerogels, which may further include a biologically active agent.Type: GrantFiled: April 21, 2004Date of Patent: February 5, 2008Assignee: DelSiTech OyInventors: Manja Ahola, Heidi Fagerholm, Ilkka Kangasniemi, Juha Kiesvaara, Pirjo Kortesuo, Kauko Kurkela, Niilo Saarinen, Antti Yli-Urpo
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Patent number: 7001181Abstract: 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: GrantFiled: July 10, 2002Date of Patent: February 21, 2006Assignee: Stick Tech OyInventors: Ilkka Kangasniemi, Pekka Vallittu
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Patent number: 6881062Abstract: 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: GrantFiled: January 11, 2001Date of Patent: April 19, 2005Assignee: Stick Tech OyInventors: Ilkka Kangasniemi, Pekka Vallittu
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Publication number: 20040197414Abstract: Controllably dissolvable silica-xerogels prepared via sol-gel process and their use. A delivery device including controllably dissolvable silica-xerogel into which structure a biologically active agent is incorporated. Pharmaceutical preparations including this device. Medical devices for orthopedic and surgical purposes which contain controllably dissolvable silica-xerogels, which may further include a biologically active agent.Type: ApplicationFiled: April 21, 2004Publication date: October 7, 2004Inventors: Manja Ahola, Heidi Fagerholm, Ilkka Kangasniemi, Juha Kiesvaara, Pirjo Kortesuo, Kauko Kurkela, Niilo Saarinen, Antti Yli-Urpo
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Publication number: 20040166472Abstract: 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: ApplicationFiled: April 9, 2004Publication date: August 26, 2004Inventors: Ilkka Kangasniemi, Pekka Vallittu
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Patent number: 6764690Abstract: Controllably dissolvable silica-xerogels prepared via sol-gel process and their use. A delivery device including controllably dissolvable silica-xerogel into which structure a biologically active agent is incorporated. Pharmaceutical preparations including this device. Medical devices for orthopedic and surgical purposes which contain controllably dissolvable silica-xerogels, which may further include a biologically active agent.Type: GrantFiled: June 25, 2002Date of Patent: July 20, 2004Assignee: DelSiTech OyInventors: Manja Ahola, Heidi Fagerholm, Ilkka Kangasniemi, Juha Kiesvaara, Pirjo Kortesuo, Kauko Kurkela, Niilo Saarinen, Antti Yli-Urpo
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Publication number: 20040121451Abstract: A method for at least partially treating biologically active sols, gels, mixtures or composites of sols and gels, and/or sol-gel derived materials, the sols, gels, mixtures or composites of sols and gels, and/or sol-gel derived materials having OH-groups and being at least partially amorphous, the treatment being performed with a localised electromagnetic and/or acoustic energy. A method for coating a device with biologically active sols, gels, mixtures or composites of sols and gels, and/or sol-gel derived materials and a method for modifying the biological activity of biologically active sols, gels, mixtures or composites of sols and gels, and/or sol-gel derived materials are also disclosed. Both methods include treatment with localised electromagnetic and/or acoustic energy. Also disclosed is the use of the method to fabricate different devices and to attach at least two devices.Type: ApplicationFiled: February 19, 2004Publication date: June 24, 2004Inventors: Niko Moritz, Ilkka Kangasniemi, Antti Yli-Urpo, Timo Peltola, Mika Jokinen
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Patent number: 6733288Abstract: The use of a prepreg containing at least one fiber and a matrix to be cured during application, for the production of a fiber-reinforced composite, for active orthodontic therapy. An active orthodontic appliance is disclosed which includes an arch wire in at least one part, directly contactable with teeth and including a fiber-reinforced composite containing at least one fiber and a matrix, the arch wire including a loop directly contactable with a tooth or teeth to be moved by the appliance. A process for manufacturing an active orthodontic appliance and to an active orthodontic method of treatment are also disclosed.Type: GrantFiled: April 29, 2002Date of Patent: May 11, 2004Assignee: Stick Tech OyInventors: Pekka Vallittu, Lippo Lassila, Ilkka Kangasniemi
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Publication number: 20030203333Abstract: The invention relates to the use of a prepreg comprising at least one fiber and a matix to be cured during application, for the production of a fiber-reinforced composite, for active orthodontic therapy. The invention further relates to an active orthodontic appliance consisting essentially of an arch wire in at least one part, directly contactable with teeth and consisting essentially of a fiber-reinforced composite comprising at least one fiber and a matrix, said arch wire comprising a loop directly contactable with a tooth or teeth to be moved by the appliance. The invention still relates to a process for manufacturing an active orthodontic appliance and to an active orthodontic method of treatment.Type: ApplicationFiled: April 29, 2002Publication date: October 30, 2003Inventors: Pekka Vallittu, Lippo Lassila, Ilkka Kangasniemi
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Patent number: 6595776Abstract: An applicator system (2) which includes a fiber-reinforced composite (FRC) post (4) or anchor in its non-polymerized form including a resinous matrix and fibers, i.e., a prepreg (4); and an applicator tube (8). The inner diameter (dT) of the tube (8) is essentially the same or slightly larger than the outer diameter (DP/A) of the FRC post (4) in its non-polymerized form. The outer diameter (DT) end of the tube through which the FRC post is applied is essentially the same or slightly smaller that the coronal opening of the canal (6). The applicator system (2) may be used to prepare permanent or temporary root canal (6) posts, to make a tooth canal (6) filling and to make a post and/or anchorage system that forms a continuous FRC structure from the apex of the tooth to the coronal part of the tooth.Type: GrantFiled: July 10, 2001Date of Patent: July 22, 2003Assignee: Stick Tech OyInventors: Ilkka Kangasniemi, Pekka Vallittu
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Publication number: 20030068598Abstract: A dental or medical device for use in construction of a finished dental or medical appliance which includes a shapable prepreg, where the prepreg coontains fibers, and at least one solid body attached to the prepreg. The solid body attached to the prepreg constitutes a solid body included in the finished appliance and forms a part or whole of the outer surface of the finished appliance. Also disclosed are methods for the manufacture of the device, either so that the prefabricated solid body is contacted with the prepreg, or so that the solid body is created simultaneously with the manufacturing of the device.Type: ApplicationFiled: October 10, 2001Publication date: April 10, 2003Inventors: Pekka Vallittu, Lippo Lassila, Ilkka Kangasniemi
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Publication number: 20030021820Abstract: The present invention is concerned with controllably dissolvable silica-xerogels prepared via sol-gel process and their use. Specifically, the invention is concerned with a delivery device comprising controllably dissolvable silica-xerogel into which structure a biologically active agent is incorporated. The invention is further concerned with pharmaceutical preparations comprising said delivery device. Further, the invention is directed to medical devices for orthopedic and surgical purposes comprising controllably dissolvable silica-xerogels, which may further comprise a biologically active agent.Type: ApplicationFiled: June 25, 2002Publication date: January 30, 2003Applicant: BIOXID OYInventors: Manja Ahola, Heidi Fagerholm, Ilkka Kangasniemi, Juha Kiesvaara, Pirjo Kortesuo, Kauko Kurkela, Niilo Saarinen, Antti Yli-Urpo
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Publication number: 20030013065Abstract: The invention relates to an applicator system (2) for application of a reinforced non-polymerized composite post (4) or anchor into a dentinal canal (6). The applicator system comprises a fiber-reinforced composite (FRC) post (4) or anchor in its non-polymerized form comprising a resinous matrix and fibers, i.e. a prepreg (4); and an applicator tube (8) wherein the inner diameter (dT) of said tube (8) is essentially the same or slightly larger than the outer diameter (DP/A) of said FRC post (4) or anchor in its non-polymerized form, and the outer diameter (DT) of the end of said tube through which the FRC post or anchor is applied into the canal is essentially the same or slightly smaller than the coronal opening of the canal (6).Type: ApplicationFiled: July 10, 2001Publication date: January 16, 2003Inventors: Ilkka Kangasniemi, Pekka Vallittu
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Publication number: 20030003423Abstract: The invention relates to a method and silicone product for shaping a fiber product used in dentistry to reinforce a prosthetic appliance or a similar structure under construction to conform to the final location. The fiber product containing fibers 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 fiber 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 fiber product to be shaped, and that when pressed, the silicone material adopts the shape of the final location or the model thereof.Type: ApplicationFiled: July 1, 2002Publication date: January 2, 2003Inventors: Ilkka Kangasniemi, Pekka Vallittu
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Patent number: 6353038Abstract: A composite intended for medical use, in particular surgical or therapeutic use, characterized in that it comprises a mixture of a thermoplastic component plasticizable within the temperature range −10° . . . +100° C., which is substantially made up of hydroxy acids and structural units derived from hydroxy acid derivatives and the molar mass of which is within the range 30,000-1,000,000 g/mol, and which degrades in the body typically within a period ranging from a few days to several years, and which in its solid state is a mechanically strong plastic or rubbery material, and a bioactive component, which is a bioactive glass or a bioactive xerogel, such that the plasticized thermoplastic component remains moldable for a certain period even after the temperature of the composite has been lowered to a temperature which is considerably lower than the setting temperature of said thermoplastic component.Type: GrantFiled: February 23, 2000Date of Patent: March 5, 2002Assignees: Bioxid Oy, JVS-Polymers OyInventors: Allan Aho, Jukka Seppälä, Antti Yli-Urpo, Jouni Heikkilä, Ilkka Kangasniemi
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Patent number: 6197410Abstract: This invention relates to a shapable prepreg comprising fibers and a polymeric matrix. The polymeric matrix is a multiphase matrix comprising a first matrix component consisting of a monomer or a dendrimer, and a second matrix component consisting of high molecular weight organic molecules, said second matrix component forming a sticky membrane of the prepreg with an interpenetrating polymer network (IPN) bonding to the first matrix component. Preferably, the prepreg further comprises a third matrix component consisting of high molecular weight organic molecules, said third component being distributed between the fibers.Type: GrantFiled: February 17, 1999Date of Patent: March 6, 2001Assignee: Stick Tech OyInventors: Pekka Vallittu, Antti Yli-Urpo, Ilkka Kangasniemi
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Patent number: 6116901Abstract: A device for use particularly in reinforcement of teeth or dental prosthetic devices, where the device is used for wetting and for application of a reinforcing fiber bundle. The device includes a flexible pipe through the first end of which the reinforcing fiber bundle can be inserted and through the second end of which the reinforcing fiber bundle can be removed, where the wall of the pipe is treated so as to be essentially opaque to light intended for the curing of the reinforced fiber bundle, and a nozzle arranged at the second end of the pipe, the cross-section of the nozzle being smaller than the cross-section of the pipe.Type: GrantFiled: December 16, 1998Date of Patent: September 12, 2000Assignee: Stick Tech OyInventor: Ilkka Kangasniemi
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Patent number: 5612049Abstract: Novel coating materials for biomedical applications, particularly for use on biomedical implants, the coating material containing gel-derived titania where the material is capable of inducing calcium phosphate formation onto its surface under in vitro conditions, e.g. in a simulated body fluid and/or under in vivo conditions, processes for the preparation of the coating materials as well as their use in biomedical implant technology.Type: GrantFiled: December 7, 1994Date of Patent: March 18, 1997Assignee: Axidental OyInventors: Panjian Li, Ilkka Kangasniemi