Patents by Inventor Guy Rousseau
Guy Rousseau 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: 20220120964Abstract: A method and a system for providing a low absorption Bragg grating along a grating region of an optical fiber are presented. The Bragg grating is written along the grating region by multiphoton absorption of ultrafast light pulses impinged on this grating region through a polymer coating of the optical fiber. The Bragg grating is then photobleached by propagating a photobleaching light beam along the optical fiber. The photobleaching light beam has optical parameters selected to reduce defects in the grating region induced by the writing of the Bragg grating in a substantially non-thermal regime.Type: ApplicationFiled: October 15, 2021Publication date: April 21, 2022Inventors: Samuel GOUIN, Claude CARIGNAN, Mathieu FAUCHER, François TREPANIER, Guy ROUSSEAU, Martin BERNIER, Alain VILLENEUVE
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Patent number: 11207456Abstract: A catheter device and method for treating an artery with thrombus, the catheter comprising an inflatable member. A carrier catheter has a proximal end and a distal end adapted to be inserted percutaneously into an artery, the carrier catheter having a tubular body adjacent to a rear end of the inflatable member. An inflating tube passes through the tubular body and having an open front end in fluid communication with the inflatable member to inflate same. An infusion tube is adapted to infuse pharmacologic agents, the infusion tube passing through the tubular body and having an open front end extending beyond the inflatable member. An aspiration tube is adapted to aspire the thrombus, the aspiration tube passing through the tubular body and having an open front end between the carrier catheter and the inflatable member.Type: GrantFiled: November 28, 2017Date of Patent: December 28, 2021Assignee: VALORISATION RECHERCHE HSCM, LIMITED PARTNERSHIPInventors: Thierry Charron, Domenic Santoianni, Marwan Abboud, Guy Rousseau, Aime-Robert Leblanc
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Patent number: 10422506Abstract: A pumped fluorescent light source includes a parabolic mirror that is positioned to focus pumping light from one or more pump sources on a fluorescent body. The resulting assembly provides for heat collection from a back surface of the light source for both the fluorescent body and the pumping sources in a compact package that may be hermetically sealed. The parabolic mirror has reflective surfaces disposed outside of a collection area of an output beam of the light sources, so that the collection area is not obstructed by the parabolic mirror. The light source also includes a collecting lens for collecting the light emitted by the body. The parabolic mirror focuses the stimulus light on the fluorescent body to stimulate emission. An additional parabolic mirror may be included behind the fluorescent body to focus the fluorescent emissions that do not directly enter the collection area at a point of collection.Type: GrantFiled: August 13, 2018Date of Patent: September 24, 2019Assignee: OPTOMAK, INC.Inventors: Guy Rousseau, Sead Doric
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Publication number: 20190003679Abstract: A pumped fluorescent light source includes a parabolic mirror that is positioned to focus pumping light from one or more pump sources on a fluorescent body. The resulting assembly provides for heat collection from a back surface of the light source for both the fluorescent body and the pumping sources in a compact package that may be hermetically sealed. The parabolic mirror has reflective surfaces disposed outside of a collection area of an output beam of the light sources, so that the collection area is not obstructed by the parabolic mirror. The light source also includes a collecting lens for collecting the light emitted by the body. The parabolic mirror focuses the stimulus light on the fluorescent body to stimulate emission. An additional parabolic mirror may be included behind the fluorescent body to focus the fluorescent emissions that do not directly enter the collection area at a point of collection.Type: ApplicationFiled: August 13, 2018Publication date: January 3, 2019Inventors: Guy Rousseau, Sead Doric
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Patent number: 10094536Abstract: A pumped fluorescent light source includes a parabolic mirror that is positioned to focus pumping light from one or more pump sources on a fluorescent body. The resulting assembly provides for heat collection from a back surface of the light source for both the fluorescent body and the pumping sources in a compact package that may be hermetically sealed. The parabolic mirror has reflective surfaces disposed outside of a collection area of an output beam of the light sources, so that the collection area is not obstructed by the parabolic mirror. The light source also includes a collecting lens for collecting the light emitted by the body. The parabolic mirror focuses the stimulus light on the fluorescent body to stimulate emission. An additional parabolic mirror may be included behind the fluorescent body to focus the fluorescent emissions that do not directly enter the collection area at a point of collection.Type: GrantFiled: March 15, 2017Date of Patent: October 9, 2018Assignee: OPTOMAK, INC.Inventors: Guy Rousseau, Sead Doric
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Publication number: 20180266658Abstract: A pumped fluorescent light source includes a parabolic mirror that is positioned to focus pumping light from one or more pump sources on a fluorescent body. The resulting assembly provides for heat collection from a back surface of the light source for both the fluorescent body and the pumping sources in a compact package that may be hermetically sealed. The parabolic mirror has reflective surfaces disposed outside of a collection area of an output beam of the light sources, so that the collection area is not obstructed by the parabolic mirror. The light source also includes a collecting lens for collecting the light emitted by the body. The parabolic mirror focuses the stimulus light on the fluorescent body to stimulate emission. An additional parabolic mirror may be included behind the fluorescent body to focus the fluorescent emissions that do not directly enter the collection area at a point of collection.Type: ApplicationFiled: March 15, 2017Publication date: September 20, 2018Inventors: Guy Rousseau, Sead Doric
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Patent number: 9999354Abstract: A method and system for inspecting biological tissue that has no applied coatings or treatments to improve reflectivity comprises an optical detection system with an exposed surface for inspection by an optical detection system; and a laser for exciting an ultrasonic wave within the tissue, which wave propagates within the tissue at least near the surface.Type: GrantFiled: January 19, 2012Date of Patent: June 19, 2018Assignee: National Research Council of CanadaInventors: Guy Rousseau, Alain Blouin, Jean-Pierre Monchalin
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Patent number: 9933605Abstract: A high-radiance broadband incoherent light source is provided by pumping a body formed from a doped material, such as a Ce:YAG crystal with one or more laser diodes. The laser diodes emit at a stimulus wavelength, which may be an absorption wavelength of the body, and the body fluoresces to emit broadband light in a wide emission band. The body is either disposed in, or forms a light-concentrating cavity, e.g., reflective surfaces, which may be dichroic surfaces, can be formed on or attached to the sides of the body to concentrate the emitted light. The light is captured by a light collector that is coupled to an output face of the body to produce a broadband illumination beam. One or more of the reflective surfaces forming the light-concentrating cavity may form a heat sink.Type: GrantFiled: November 11, 2014Date of Patent: April 3, 2018Assignee: OPTOMAK, INC.Inventors: Guy Rousseau, Sead Doric
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Publication number: 20180078685Abstract: A catheter device and method for treating an artery with thrombus, the catheter comprising an inflatable member. A carrier catheter has a proximal end and a distal end adapted to be inserted percutaneously into an artery, the carrier catheter having a tubular body adjacent to a rear end of the inflatable member. An inflating tube passes through the tubular body and having an open front end in fluid communication with the inflatable member to inflate same. An infusion tube is adapted to infuse pharmacologic agents, the infusion tube passing through the tubular body and having an open front end extending beyond the inflatable member. An aspiration tube is adapted to aspire the thrombus, the aspiration tube passing through the tubular body and having an open front end between the carrier catheter and the inflatable member.Type: ApplicationFiled: November 28, 2017Publication date: March 22, 2018Inventors: Thierry CHARRON, Domenic SANTOIANNI, Marwan ABBOUD, Guy ROUSSEAU, Aime-Robert LEBLANC
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Patent number: 9855375Abstract: A catheter device and method for treating an artery with thrombus, the catheter comprising an inflatable member. A carrier catheter has a proximal end and a distal end adapted to be inserted percutaneously into an artery, the carrier catheter having a tubular body adjacent to a rear end of the inflatable member. An inflating tube passes through the tubular body and having an open front end in fluid communication with the inflatable member to inflate same. An infusion tube is adapted to infuse pharmacologic agents, the infusion tube passing through the tubular body and having an open front end extending beyond the inflatable member. An aspiration tube is adapted to aspire the thrombus, the aspiration tube passing through the tubular body and having an open front end between the carrier catheter and the inflatable member.Type: GrantFiled: July 10, 2013Date of Patent: January 2, 2018Assignee: VALORISATION RECHERCHE HSCM, LIMITED PARTNERSHIPInventors: Thierry Charron, Domenic Santoianni, Marwan Abboud, Guy Rousseau, Aime-Robert Leblanc
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Publication number: 20160131334Abstract: A high-radiance broadband incoherent light source is provided by pumping a body formed from a doped material, such as a Ce:YAG crystal with one or more laser diodes. The laser diodes emit at a stimulus wavelength, which may be an absorption wavelength of the body, and the body fluoresces to emit broadband light in a wide emission band. The body is either disposed in, or forms a light-concentrating cavity, e.g., reflective surfaces, which may be dichroic surfaces, can be formed on or attached to the sides of the body to concentrate the emitted light. The light is captured by a light collector that is coupled to an output face of the body to produce a broadband illumination beam. One or more of the reflective surfaces forming the light-concentrating cavity may form a heat sink.Type: ApplicationFiled: November 11, 2014Publication date: May 12, 2016Inventors: Guy Rousseau, Sead Doric
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Publication number: 20150190558Abstract: A catheter device and method for treating an artery with thrombus, the catheter comprising an inflatable member. A carrier catheter has a proximal end and a distal end adapted to be inserted percutaneously into an artery, the carrier catheter having a tubular body adjacent to a rear end of the inflatable member. An inflating tube passes through the tubular body and having an open front end in fluid communication with the inflatable member to inflate same. An infusion tube is adapted to infuse pharmacologic agents, the infusion tube passing through the tubular body and having an open front end extending beyond the inflatable member. An aspiration tube is adapted to aspire the thrombus, the aspiration tube passing through the tubular body and having an open front end between the carrier catheter and the inflatable member.Type: ApplicationFiled: July 10, 2013Publication date: July 9, 2015Applicant: HOPITAL DU SACRE-COEUR DE MONTREALInventors: Thierry Charron, Domenic Santoianni, Marwan Abboud, Guy Rousseau, Aime-Robert Leblanc
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Publication number: 20120200845Abstract: A method and system for inspecting biological tissue that has no applied coatings or treatments to improve reflectivity comprises an optical detection system with an exposed surface for inspection by an optical detection system; and a laser for exciting an ultrasonic wave within the tissue, which wave propagates within the tissue at least near the surface.Type: ApplicationFiled: January 19, 2012Publication date: August 9, 2012Inventors: Guy ROUSSEAU, Alain BLOUIN, Jean-Pierre MONCHALIN
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Patent number: 7094552Abstract: The invention provides a method for the treatment of prophylaxis of autoimmune inner ear disease, in particular, deafness caused by autoimmune inner ear disease, which comprises administering to a host in need thereof a vaccine comprising peripheral myelin protein zero. The invention further provides diagnostic methods and kits derived from the protein.Type: GrantFiled: October 16, 2002Date of Patent: August 22, 2006Assignee: Universite Catholique de LouvainInventors: Jean-Paul Thomasi, Michel Gersdorff, Guy Rousseau
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Patent number: 7092414Abstract: There is described a method of characterizing a short laser pulse, the method comprising the steps of obtaining root-mean-square widths of the pulse through second order moments of the pulse; obtaining a spectral width of the pulse using the root-mean-square widths; obtaining a root-mean square temporal width of the pulse; and defining a Pulse Quality Factor proportional to a product of the spectral width and the temporal width. This approach does not require complete characterization of laser pulses and eliminates the need of any assumption to interpret autocorrelation traces. The method can be applied to pulses of arbitrary shape.Type: GrantFiled: May 6, 2003Date of Patent: August 15, 2006Assignee: Université LavalInventors: Michel Piché, Guy Rousseau
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Publication number: 20040032580Abstract: There is described a method of characterizing a short laser pulse, the method comprising the steps of obtaining root-mean-square widths of the pulse through second order moments of the pulse; obtaining a spectral width of the pulse using the root-mean-square widths; obtaining a root-mean square temporal width of the pulse; and defining a Pulse Quality Factor proportional to a product of the spectral width and the temporal width. This approach does not require complete characterization of laser pulses and eliminates the need of any assumption to interpret autocorrelation traces. The method can be applied to pulses of arbitrary shape.Type: ApplicationFiled: May 6, 2003Publication date: February 19, 2004Inventors: Michel Piche, Guy Rousseau
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Publication number: 20030082171Abstract: The invention provides a method for the treatment of prophylaxis of autoimmune inner ear disease, in particular, deafness caused by autoimmune inner ear disease, which comprises administering to a host in need thereof a vaccine comprising peripheral myelin protein zero. The invention further provides diagnostic methods and kits derived from the protein.Type: ApplicationFiled: October 16, 2002Publication date: May 1, 2003Inventors: Jean-Paul Tomasi, Michel Gersdorff, Guy Rousseau
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Patent number: 6120619Abstract: To avoid the corrosion of stainless steels in organosulphonic acid medium, at least one oxidizing agent selected from cerium(IV), iron(III), molybdenum(VI) or vanadium(V) oxides or salts, nitrites and persulphates, is added to the medium in an amount which is sufficient to place the spontaneous potential between the passivation and transpassivation potentials.Type: GrantFiled: January 12, 1999Date of Patent: September 19, 2000Assignee: Elf Atochem, S.A.Inventors: Jean Goudiakas, Guy Rousseau