Patents by Inventor Dan Ericson
Dan Ericson 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: 9149343Abstract: A dental instrument, suitable for use when creating a dental filling, is provided. The dental instrument includes a wedge and a matrix. The matrix is fixedly attached to the wedge, and the wedge is adapted to be inserted into the approximal space between two teeth of a patient. The wedge has a bow shape along a length axis of the wedge, the matrix has a first bow shape along a length axis of the matrix, and the matrix also has a second bow shape along an axis perpendicular to the length axis of the matrix. A method of using the dental instrument and a disposable system, which further comprises a protective member, is further provided.Type: GrantFiled: January 20, 2010Date of Patent: October 6, 2015Assignee: Directa ABInventors: Dan Ericson, Jan Johansson, Orjan Arkang, Stefan Leffler, Olof Larsson
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Publication number: 20110306007Abstract: A dental instrument, suitable for use when creating a dental filling is provided. The dental instrument comprises a wedge and a matrix. The matrix is fixedly attached to the wedge, and the wedge is adapted to be inserted into the approximal space between two teeth of a patient. The wedge comprises a bow shape along a length axis of the wedge, the matrix comprises a first bow shape along a length axis of the matrix, and the matrix comprises a second bow shape along an axis perpendicular to the length axis of the matrix. A method of using the dental instrument and a disposable system, which further comprises a protective member, is further provided.Type: ApplicationFiled: January 20, 2010Publication date: December 15, 2011Applicant: Directa ABInventors: Dan Ericson, Jan Johansson, Orjan Arkang, Stefan Leffler, Olof Larsson
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Publication number: 20080014546Abstract: The invention relates to a tool for making a dental filling of a light-hardening material. The tool comprises a tip (3) intended to be pressed down into the light-hardening material in connection with the filling of a tooth, as well as a holder (4) shaped as a sleeve with a surrounding wall (5) with an inner wall surface (14), which holder (4) is intended to receive a light guide (7). The holder comprises flexible members arranged to bear against, and by a certain force to hold, light guides of various outer dimensions. Moreover, the holder (4) is designed to press a light guide (7) placed in the holder (4) against the inner wall surface (14) of the holder, by a bearing pressure that varies along the periphery of the inner wall surface.Type: ApplicationFiled: May 11, 2005Publication date: January 17, 2008Applicant: DENDEMA AKTIEBOLAGInventors: Gustaf Sundstrom, Dan Ericson
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Patent number: 6491520Abstract: A dental instrument is provided for removing caries attacked dentine in connection with chemical-mechanical treatment of caries by means of a caries-dissolving solution applied to the caries for loosening the caries tooth substance. The instrument comprises a tool head with a number of scraping edges or bristles for scraping away the loosened caries tooth substance. In the spacings formed therebetween drops of the gel solution used for the chemical-mechanical treatment can be carried (transported) up to the tooth treatment site. The instrument is power-driven in order to provide the tool head with a predetermined scraping motion.Type: GrantFiled: April 23, 2001Date of Patent: December 10, 2002Assignee: MediTeam Dental ABInventors: Lennart Carlsson, Rolf Bornstein, Dan Ericson
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Patent number: 6413502Abstract: The invention relates to a preparation for use in chemical-mechanical treatment of caries in the form of a two-component caries dissolving liquid in which one of the components consists of sodium hypochlorite and the other component of amino acids, preferably three amino-acids with different charge states; one neutral, one with a negative net charge and one with a positive net charge. A viscosity increasing substance in the form of 3% carboxy methyl cellulose, or any other polysaccharide, as well as a coloring agent, 0.04% Erythrosin, which is able to interact with carious tooth substance has been added to the amino acid component. This means that less liquid is spent, the liquid becomes easier to control and handle and the suspended material becomes more visible.Type: GrantFiled: July 1, 1999Date of Patent: July 2, 2002Assignee: Medi Team Dentalutveckling I Goteborg ABInventors: Rolf Bornstein, Dan Ericson
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Patent number: 6403060Abstract: The invention relates to a preparation for use in chemical-mechanical treatment of caries in the form of a two-component caries dissolving liquid in which one of the components consists of sodium hypochlorite and the other component of a substance with the ability to reduce the aggressive influence of sodium hypochlorite on mucous membranes. The other component is a gel component which consists of a gel substance without any amino acids or a gel substance mixed with one or more amino acids.Type: GrantFiled: August 25, 2000Date of Patent: June 11, 2002Assignee: Mediteam Dentalutveckling IInventors: Rolf Bornstein, Dan Ericson
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Patent number: 6099310Abstract: The invention relates to a dental instrument for removing carious dentine in connection with chemical-mechanical treatment of caries by means of a caries-dissolving solution applied to the caries for loosening the carious tissue. The instrument comprises at least one non-rotating tool-head (4, 5) for manually scraping away the loosened carious dental material. The tool head is star-shaped with a number of scraping edges (6) having a curved outer contour (periphery) for excavating loosened carious dental material in connection with said treatment method. The scraping edges (6) are designed to scrape in different directions, the bottom parts as well as the sides (peripheral parts) of a tooth cavity. The open spaces (9) formed between the scraping edges (6) admit transport by the instrument of drops of the solution used for the chemical-mechanical treatment method up to the carious tooth site.Type: GrantFiled: June 17, 1999Date of Patent: August 8, 2000Assignee: MediTeam Dentalutveckling I Goteborg ABInventors: Rolf Bornstein, Dan Ericson
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Patent number: D627887Type: GrantFiled: July 1, 2009Date of Patent: November 23, 2010Assignee: Directa ABInventors: Jan Johansson, Dan Ericson, Orjan Arkang, Stefan Leffler, Olof Larsson