Patents by Inventor Francis Dieras
Francis Dieras 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).
-
Patent number: 10024504Abstract: A dental lighting device and process for using the same comprises at least one lighting system configured to light a predetermined dental zone with, over a first spectral range which is less than a reference wavelength between 405 nm and 475 nm, a first irradiance value E1 and, over a second spectral range greater than this reference wavelength, a second irradiance value E2, which lighting system is configured to function according to at least one first lighting mode in which the ratio of the first irradiance value E1 to the second irradiance value E2 is less than 12.Type: GrantFiled: July 4, 2013Date of Patent: July 17, 2018Assignee: SOCIETE POUR LA CONCEPTION DES APPLICATIONS DES TECHNIQUES ELECTRONIQUESInventors: Alain Mazuir, Francis Dieras, Pascal Regere
-
Publication number: 20150216551Abstract: A surgical handpiece includes a housing for receiving an insert, and an ultrasound piezoelectric transducer having a piezoelectric motor placed between a counterweight and an amplifier portion. The piezoelectric transducer is suitable for transmitting ultrasound waves from a distal end of the amplifier portion. The distal end is present in the housing, and rotary drive means is present in the housing. The rotary drive means are movable independently of the ultrasound piezoelectric transducer, and the transducer is static relative to the handpiece.Type: ApplicationFiled: July 12, 2013Publication date: August 6, 2015Inventors: Francis Dieras, Pascal Regere
-
Publication number: 20150167908Abstract: A dental lighting device and process for using the same comprises at least one lighting system configured to light a predetermined dental zone with, over a first spectral range which is less than a reference wavelength between 405 nm and 475 nm, a first irradiance value E1 and, over a second spectral range greater than this reference wavelength, a second irradiance value E2, which lighting system is configured to function according to at least one first lighting mode in which the ratio of the first irradiance value E1 to the second irradiance value E2 is less than 12.Type: ApplicationFiled: July 4, 2013Publication date: June 18, 2015Inventors: Alain Mazuir, Francis Dieras, Pascal Regere
-
Patent number: 8758011Abstract: An ultrasound dental treatment appliance having a surgical handpiece (220) fitted with a transducer connected to an ultrasound generator (230), the handpiece being designed to receive ultrasound tips (210) that are mechanically coupled to the transducer and that operate in different ultrasound wave power and amplitude ranges. The dental treatment appliance includes elements (224, 225), e.g. optical elements, for automatically detecting the utilization power and amplitude range of the tip (210) mounted on the handpiece, and a processor for automatically setting the ultrasound generator to the detected power and amplitude range.Type: GrantFiled: February 1, 2006Date of Patent: June 24, 2014Assignee: Societe pour la Conceptions des Applications des Techniques Electroniques (SATELEC)Inventors: Pascal Regere, Francis Dieras
-
Patent number: 8758690Abstract: A sterilization indicator having a compound that is of the heating type when put into contact with atoms of oxygen O and/or nitrogen N; and a thermochromic dye, in thermal contact with the compound.Type: GrantFiled: February 22, 2013Date of Patent: June 24, 2014Assignee: Societe pour la Conception des Applications des Techniques ElectroniquesInventors: André Ricard, Francis Dieras, Michel Sixou, Sandrine Villeger, Cristina Canal, Pilar Erra
-
Patent number: 8679846Abstract: The invention provides a sterilization indicator (17), characterized in that it comprises: a compound (21) that is of the heating type when put into contact with atoms of oxygen O and/or nitrogen N; and a thermochromic dye (19), in thermal contact with the compound (21).Type: GrantFiled: December 20, 2007Date of Patent: March 25, 2014Assignee: Societe pour la Conception des Applications des Techniques ElectroniquesInventors: André Ricard, Francis Dieras, Michel Sixou, Sandrine Villeger, Cristina Canal, Pilar Erra
-
Publication number: 20110098633Abstract: Method for lifting a sinus membrane located between a sinus and a maxilla that involves the drilling of a hole of a given diameter in the maxilla reaching the sinus membrane, and includes introducing in the hole an ultrasonic tip having a distal part including a ring-shaped part of increasing cross-section and a distal end formed by a flat area extending generally perpendicular to the longitudinal axis of the distal part. The flat area of the distal part has a distal side facing away from the proximal part and is bordered by a rounding, the ring shaped part being larger than the body of the tip but closely corresponding to the diameter of the hole. The tip includes an internal irrigation channel emerging on the distal side of the flat area. While the tip is within the hole, the tip is advanced towards the membrane while ultrasound vibrations are fed to the tip and irrigation fluid is supplied to the internal irrigation channel.Type: ApplicationFiled: December 30, 2010Publication date: April 28, 2011Inventors: Andreas KURREK, Marcel A. WAINWRIGHT, Angelo TROEDHAN, Francis DIERAS
-
Patent number: 7927557Abstract: A device used for the sterilization of objects (19), in particular medical or surgical instruments, is of the type that can create a gaseous plasma from a gas flow which is subjected to an electric field. The resulting post-discharge flow is brought into contact with the surface of the objects to be treated. The device is characterized in that the gas flow includes exclusively nitrogen. Moreover, the device include a device for heating the aforementioned objects, which can heat the objects to a temperature of at least 60° C. during treatment. A method of using the device is also described.Type: GrantFiled: June 28, 2004Date of Patent: April 19, 2011Assignee: Societe pour la Conception des Applications des Techniques Electroniques-SATELECInventors: Francis Dieras, André Ricard, Michel Sixou, Sandrine Villeger
-
Publication number: 20100107962Abstract: The invention provides a sterilization indicator (17), characterized in that it comprises: a compound (21) that is of the heating type when put into contact with atoms of oxygen O and/or nitrogen N; and a thermochromic dye (19), in thermal contact with the compound (21).Type: ApplicationFiled: December 20, 2007Publication date: May 6, 2010Inventors: André Ricard, Francis Dieras, Michel Sixou, Sandrine Villeger, Cristina Canal, Pilar Erra
-
Patent number: 7613505Abstract: Method for detection and location of a difference in density and/or structure and/or chemical composition of a biological tissue (7) which is subjected to continuous illumination in a first determined band of frequencies, causing the former to generate a phenomenon of fluorescence, autofluorescence or luminescence in a second band of frequencies. The method includes the following stages: the biological tissue thus illuminated is visually captured by color video elements provided with image sensors with a mosaic of pixels provided with additional color filters; for each image point thus obtained 1) information relating to the energy received by each pixel is collected in order to reconstitute an image of the biological tissue (7), b) amplification occurs for the signal corresponding to the energy received in the second frequency band in order to characterize the biological tissue (7) difference or to cause the image thus obtained to appear.Type: GrantFiled: July 28, 2004Date of Patent: November 3, 2009Assignee: SoproInventors: Alain Mazuir, Francis Dieras
-
Patent number: 7544721Abstract: A photosensitive adhesive composition of the polymerizable resin type, the hardening of which occurs by polymerization and/or reticulation, includes:—initiators for at least one chain polymerization reaction to guarantee the hardening of the composition and a sufficient quantity of at least one bifunctional monomer, including a photolabile center with at least one photolabile entity and at least two polymerizable units, connected by covalent skeletons to the photolabile center and located away from the cleavage sites of the photolabile center, such that the composition loses the integrity and adhesivity thereof under the influence of a reticulating radiation causing the cleavage of the photolabile sites. The composition is particularly of application in dentistry.Type: GrantFiled: April 2, 2003Date of Patent: June 9, 2009Assignee: Produits Dentaires Pierre RollandInventors: Vincent Gaud, Yves Gnanou, Jean-Pierre Desvergne, Francis Dieras, Alexandrine Roubiere
-
Publication number: 20080293008Abstract: The invention relates to an ultrasound dental treatment appliance comprising a surgical handpiece (220) fitted with a transducer connected to an ultrasound generator (230), the handpiece being designed to receive ultrasound tips (210) that are mechanically coupled to the transducer and that operate in different ultrasound wave power and amplitude ranges. The dental treatment appliance includes means (224, 225), e.g. optical means, for automatically detecting the utilization power and amplitude range of the tip (210) mounted on the handpiece, and processor means for automatically setting the ultrasound generator to the detected power and amplitude range.Type: ApplicationFiled: February 1, 2006Publication date: November 27, 2008Inventors: Pascal Regere, Francis Dieras
-
Publication number: 20080275379Abstract: An ultrasonic tip (100) for sinus membrane elevation has a body (101), extending between a proximal part (102) adapted for mechanic coupling to a surgical handpiece generating ultrasound vibrations and a distal part (103) intended to reproduce the ultrasound vibrations transmitted by the handpiece. The distal part (103) of the tip comprises a ring-shaped part (106) of increasing cross-section with an end formed by a flat area (107) more or less perpendicular to the axis (106a) of the aforesaid ring-shaped part. The tip (100) further includes an internal irrigation channel (105) emerging on said flat area (107).Type: ApplicationFiled: July 10, 2007Publication date: November 6, 2008Inventors: Andreas Kurrek, Marcel A. Wainwright, Angelo Troedhan, Francis Dieras
-
Publication number: 20080112846Abstract: A method for sterilizing objects (19), in particular medical or surgical instruments, includes subjecting a gas stream circulating in a chamber wherein an industrial vacuum is created to the action of an electric field so as to create a gaseous plasma whereof the post-discharge stream which is derived therefrom is admitted into a sterilizing chamber where it is contacted with the surface of the objects to be treated. The device is characterized in that the gas stream consists of a mixture of nitrogen, and of an amount of hydrogen less than 5%. It includes elements for heating the objects capable of bringing the latter, during treatment, to a temperature not less than 60° C.Type: ApplicationFiled: December 27, 2005Publication date: May 15, 2008Applicant: SOCIETE POUR LA CONCEPTION DES APPLICATIONS DES TECHNIQUES ELECTRONIQUES- SATELECInventors: Francis Dieras, Andre Ricard, Michel Sixou, Sandrine Villeger
-
Publication number: 20070224575Abstract: The invention relates to a dental tool or insert driven by ultrasonic vibration and made of a titanium and aluminium-based alloy. The inventive dental tool comprises, in the form of the component thereof, at least one biocompatible betagene element which is made of niobium and/or molybdenum and/or tantalum and generates at least 40% of crystalline phase of a centred cubic structure.Type: ApplicationFiled: May 4, 2005Publication date: September 27, 2007Inventors: Francis Dieras, Yann Lepetitcorps
-
Publication number: 20070092397Abstract: The invention relates to a device which is used for the sterilisation of objects (19), in particular medical or surgical instruments. The inventive device is of the type that can create a gaseous plasma from a gas flow which is subjected to an electric field. According to the invention, the resulting post-discharge flow is brought into contact with the surface of the objects to be treated. The device is characterized in that the gas flow comprises exclusively nitrogen. Moreover, the device comprise means for heating the aforementioned objects, which can heat said objects to a temperature of at least 60° C. during treatment. The invention also relates to a method of using the device.Type: ApplicationFiled: June 28, 2004Publication date: April 26, 2007Inventors: Francis Dieras, Andre Ricard, Michel Sixou, Sandrine Villeger
-
Publication number: 20060227216Abstract: Method for detection and location of a difference in density and/or structure and/or chemical composition of a biological tissue (7) which is subjected to continuous illumination in a first determined band of frequencies, causing the former to generate a phenomenon of fluorescence, autofluorescence or luminescence in a second band of frequencies. The method includes the following stages: the biological tissue thus illuminated is visually captured by colour video elements provided with image sensors with a mosaic of pixels provided with additional colour filters; for each image point thus obtained 1) information relating to the energy received by each pixel is collected in order to reconstitute an image of the biological tissue (7), b) amplification occurs for the signal corresponding to the energy received in the second frequency band in order to characterize the biological tissue (7) difference or to cause the image thus obtained to appear.Type: ApplicationFiled: July 28, 2004Publication date: October 12, 2006Applicant: SOPROInventors: Alain Mazuir, Francis Dieras
-
Publication number: 20050211908Abstract: The dental X-ray image acquisition device comprises an in-mouth sensor and a control unit suitable for controlling the in-mouth sensor and for triggering the acquisition of an image, for storing it, and for transferring said image to at least one computer via digital wireless communications means in compliance with the Bluetooth (registered trademark) standard.Type: ApplicationFiled: May 25, 2005Publication date: September 29, 2005Applicant: SOPROInventors: Francis Dieras, Alain Mazuir
-
Publication number: 20050182148Abstract: The invention relates to a photosensitive adhesive composition of the polymerisable resin type, the hardening of which occurs by means of polymerisation and/or reticulation, characterised in comprising:—initiating means for at least one chain polymerisation reaction to guarantee the hardening of said composition and a sufficient quantity of at least one bifunctional monomer, comprising a photolabile centre with at least one photolabile entity and at least two polymerisable units, connected by covalent skeletons to said photolabile centre and located away from the cleavage sites of said photolabile centre, such that said composition loses the integrity and adhesivity thereof under the influence of a reticulating radiation causing the cleavage of the photolabile sites. The composition is particularly of application in dentistry.Type: ApplicationFiled: April 2, 2003Publication date: August 18, 2005Inventors: Vincent Gaud, Yves Gnanou, Jean-Pierre Desvergne, Francis Dieras, Alexandrine Roubiere
-
Patent number: 6312256Abstract: A dental instrument adapted to be fixed to a hand piece suitable for communicating ultrasound waves to the dental instrument, includes at least one arm ending in an active extremity that has two longitudinal concavities in opposing surfaces.Type: GrantFiled: July 13, 2000Date of Patent: November 6, 2001Assignee: Satelec SAInventors: Francis Dieras, Edmond-Pierre Benque