Patents by Inventor Daniel Lafontaine
Daniel Lafontaine 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: 9993491Abstract: The present invention includes novel compounds and pharmaceutically acceptable formulations of said compounds which exhibit antibiotic activity against microorganisms bearing a guanine riboswitch that controls the expression of the guaA gene, including organisms which are resistant to certain antibiotic families, and which are useful as antibacterial agents for treatment or prophylaxis of bacterial infections in animals or in humans, in particular but not limited to infections of the mammary gland, or their use as antiseptics, agents for sterilization or disinfection.Type: GrantFiled: February 6, 2015Date of Patent: June 12, 2018Assignee: SOCPRA—SCIENCES ET GÉNIE S.E.C.Inventors: Jerome Mulhbacher, Daniel Lafontaine, Francois Malouin, Marianne Allard, Eric Marsault
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Patent number: 9861473Abstract: A cardiac valve with a first anchor frame and a cover on the first anchor frame for unidirectional flow of a liquid through the valve.Type: GrantFiled: August 19, 2013Date of Patent: January 9, 2018Assignee: Boston Scientific Scimed Inc.Inventor: Daniel Lafontaine
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Patent number: 9157002Abstract: A process for preparing a pigment dispersion including melting a phase change ink carrier and an optional dispersant at a temperature of from about 100° C. to about 170° C. in a jacketed vessel comprising a jacket surrounding an immersion mill or basket mill attachment and a dispersion blade attachment disposed within the jacketed vessel; mixing the melted phase change ink carrier and optional dispersant with a dispersion blade in the jacketed vessel; adding a pigment to the melted, mixed phase change ink carrier and optional dispersant in the jacketed vessel; wetting the pigment; after pigment wetting, reducing the pigment particle size using an immersion mill or basket mill attachment in the jacketed vessel; and discharging the pigment dispersion.Type: GrantFiled: July 12, 2013Date of Patent: October 13, 2015Assignee: Xerox CorporationInventors: Karina Lopez, Enno Eric Agur, Santiago Faucher, Frank Ping-Hay Lee, Aurelian Valeriu Magdalinis, Biby Esther Abraham, Daniel Lafontaine, Jonathan Lisk
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Publication number: 20150150890Abstract: The present invention includes novel compounds and pharmaceutically acceptable formulations of said compounds which exhibit antibiotic activity against microorganisms bearing a guanine riboswitch that controls the expression of the guaA gene, including organisms which are resistant to certain antibiotic families, and which are useful as antibacterial agents for treatment or prophylaxis of bacterial infections in animals or in humans, in particular but not limited to infections of the mammary gland, or their use as antiseptics, agents for sterilization or disinfection.Type: ApplicationFiled: February 6, 2015Publication date: June 4, 2015Inventors: JEROME MULHBACHER, DANIEL LAFONTAINE, FRANCOIS MALOUIN, MARIANNE ALLARD, ERIC MARSAULT
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Publication number: 20150013567Abstract: A process for preparing a pigment dispersion including melting a phase change ink carrier and an optional dispersant at a temperature of from about 100° C. to about 170° C. in a jacketed vessel comprising a jacket surrounding an immersion mill or basket mill attachment and a dispersion blade attachment disposed within the jacketed vessel; mixing the melted phase change ink carrier and optional dispersant with a dispersion blade in the jacketed vessel; adding a pigment to the melted, mixed phase change ink carrier and optional dispersant in the jacketed vessel; wetting the pigment; after pigment wetting, reducing the pigment particle size using an immersion mill or basket mill attachment in the jacketed vessel; and discharging the pigment dispersion.Type: ApplicationFiled: July 12, 2013Publication date: January 15, 2015Inventors: Karina Lopez, Enno Eric Agur, Santiago Faucher, Frank Ping-Hay Lee, Aurelian Valeriu Magdalinis, Biby Esther Abraham, Daniel Lafontaine, Jonathan Lisk
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Publication number: 20140094645Abstract: The various embodiments disclosed herein relate to percutaneous interface lines and related methods for implanting such lines. Each percutaneous interface line has an internal component coupleable to a percutaneous component with an internal connector. The percutaneous component can have a Y-shaped end having two arms, one arm having a lumen and another arm having at least one wire. The methods for implanting a percutaneous interface line include the use of a tunneling tool having a flexible rod and a replaceable dilator tip.Type: ApplicationFiled: March 13, 2013Publication date: April 3, 2014Applicant: Sunshine Heart Company Pty LTDInventors: Daniel Lafontaine, William Peters, Martin Cook, Tolga Tas
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Publication number: 20140081390Abstract: A cardiac valve with a support frame having a first end member and a second end member opposing the first end member in a substantially fixed distance relationship, and a cover extending over the support frame to allow for unidirectional flow of a liquid through the valve.Type: ApplicationFiled: November 19, 2013Publication date: March 20, 2014Applicant: Boston Scientific Scimed, Inc.Inventors: Mark L. Jenson, William J. Drasler, Daniel Lafontaine
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Publication number: 20130345799Abstract: A cardiac valve with a first anchor frame and a cover on the first anchor frame for unidirectional flow of a liquid through the valve.Type: ApplicationFiled: August 19, 2013Publication date: December 26, 2013Applicant: Boston Scientific Scimed, Inc.Inventor: Daniel Lafontaine
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Patent number: 8282599Abstract: A catheter device having a proboscis, such as a needle, and a transducer which detects the axial displacement of the proboscis in relation to the distal tip of the catheter. The transducer is positioned at a distal portion of the catheter and may comprise an induction coil or a potentiometer. Axial displacement of the proboscis changes the amount of inductance or resistance in the transducer. This change in inductance or resistance can be calibrated to the amount of axial displacement of the proboscis and provided as feedback to the user.Type: GrantFiled: November 16, 2007Date of Patent: October 9, 2012Assignee: Boston Scientific Scimed, Inc.Inventors: Alan Eskuri, Daniel Lafontaine
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Publication number: 20120122819Abstract: The present invention includes novel compounds and pharmaceutically acceptable formulations of said compounds which exhibit antibiotic activity against microorganisms bearing a guanine riboswitch that controls the expression of the guaA gene, including organisms which are resistant to certain antibiotic families, and which are useful as antibacterial agents for treatment or prophylaxis of bacterial infections in animals or in humans, in particular but not limited to infections of the mammary gland, or their use as antiseptics, agents for sterilization or disinfection.Type: ApplicationFiled: June 14, 2010Publication date: May 17, 2012Applicant: SOCPRA - SCIENCES ET GENIE S.E.C.Inventors: Jérôme Mulhbacher, Daniel Lafontaine, François Malouin, Marianne Allard, Eric Marsault
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Publication number: 20080314394Abstract: Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.Type: ApplicationFiled: July 28, 2005Publication date: December 25, 2008Inventors: Louis Ellis, Daniel Lafontaine, Roger Hastings, Lauri DeVore
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Publication number: 20080140006Abstract: A catheter device having a proboscis, such as a needle, and a transducer which detects the axial displacement of the proboscis in relation to the distal tip of the catheter. The transducer is positioned at a distal portion of the catheter and may comprise an induction coil or a potentiometer. Axial displacement of the proboscis changes the amount of inductance or resistance in the transducer. This change in inductance or resistance can be calibrated to the amount of axial displacement of the proboscis and provided as feedback to the user.Type: ApplicationFiled: November 16, 2007Publication date: June 12, 2008Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Alan Eskuri, Daniel Lafontaine
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Publication number: 20070250050Abstract: Devices and methods for cooling vessel walls to inhibit restenosis in conjunction with medical procedures such as coronary artery angioplasty. Stenosed vessel walls can be cooled prior to angioplasty, after angioplasty, or both. The invention is believed to inhibit restenosis through cooling to a temperature near freezing, preferably without causing substantial vessel wall cell death. One catheter device includes a distal tube region having coolant delivery holes radially and longitudinally distributed along the distal region. In some devices, holes spray coolant directly onto the vessel walls, with the coolant absorbed into the blood stream. In other embodiments, a balloon or envelope is interposed between the coolant and the vessel walls and the coolant returned out of the catheter through a coolant return lumen. Some direct spray devices include an occlusion device to restrict blood now past the region being cooled. Pressure, temperature, and ultrasonic probes are included in some cooling catheters.Type: ApplicationFiled: April 12, 2007Publication date: October 25, 2007Inventor: Daniel LAFONTAINE
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Publication number: 20070150038Abstract: Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrodes that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Each of the electrodes contains a source of electrical energy for pacing the myocardium and is adapted to receive electromagnetic energy from a source outside the myocardium. The system also includes a source adapted for placement outside the myocardium and that uses locally measured electrocardiograms to synchronize pacing of the heart by sending electromagnetic commands to the electrodes to pace the myocardium surrounding the electrodes. Also disclosed is various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.Type: ApplicationFiled: March 8, 2007Publication date: June 28, 2007Inventors: Roger Hastings, William Drasler, Daniel Lafontaine, Anupama Sadasiva, Scott Smith
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Publication number: 20070150037Abstract: Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrodes that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Each of the electrodes contains a source of electrical energy for pacing the myocardium and is adapted to receive electromagnetic energy from a source outside the myocardium. The system also includes a source adapted for placement outside the myocardium and that uses locally measured electrocardiograms to synchronize pacing of the heart by sending electromagnetic commands to the electrodes to pace the myocardium surrounding the electrodes. Also disclosed is various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.Type: ApplicationFiled: March 8, 2007Publication date: June 28, 2007Inventors: Roger Hastings, William Drasler, Daniel Lafontaine, Anupama Sadasiva, Scott Smith
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Publication number: 20070150009Abstract: Apparatus, system, and method that include a pacing apparatus having a stent electrode through which pulses of electrical current can be delivered. Stent electrodes receive energy for generating the electrical current from a variety of sources. Sources include from one or more induction coils that can form at least a portion of the stent. Sources can also include an implantable pulse generator coupled to a lead through which pulses of the electrical current are supplied to the stent electrodes.Type: ApplicationFiled: December 22, 2005Publication date: June 28, 2007Inventors: Graig Kveen, Roger Hastings, Anupama Sadasiva, Vitaly Shapovalov, Daniel Lafontaine
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Publication number: 20070135883Abstract: Some embodiments of pacing systems employ wireless electrode assemblies to provide pacing therapy. The wireless electrode assemblies may wirelessly receive energy via an inductive coupling so as to provide electrical stimulation to the surrounding heart tissue. In certain embodiments, the wireless electrode assembly may include one or more biased tines that shift from a first position to a second position to secure the wireless electrode assembly into the inner wall of the heart chamber.Type: ApplicationFiled: October 13, 2006Publication date: June 14, 2007Applicant: Boston Scientific Scimed, Inc.Inventors: William Drasler, Michael Pikus, Roger Hastings, Scott Smith, Martin Willard, Daniel Lafontaine, Douglas Saholt, Graig Kveen
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Patent number: 7148044Abstract: A method is described for cleaving a nucleic acid substrate with a nucleic acid enzyme at a cleavage site comprising mixing the substrate with the enzyme, wherein the substrate includes a 7 nucleotide sequence with at least 6 nucleotides 3? to the cleavage site and at least 1 nucleotide 5? to the cleavage site and of formula: 5?-H?GNNHNN-3? wherein each N is a nucleotide which may be the same or different, H is a nucleotide selected from the group consisting of A, U, C, and T, and is the site of cleavage, and H? is a ribonucleotide selected from the group consisting of A, U, and C, wherein (i) the first nucleotide 3? to the cleavage site is capable of forming a wobble pair with the enzyme, (ii) the second, third, fifth, and sixth nucleotides 3? to the cleavage site are capable of forming conventional Watson-Crick base pairs with the enzyme, (iii) the fourth nucleotide 3? to the cleavage site is capable of forming a non-conventional Watson-Crick base pair with the enzyme, and (iv) the first nucleotide 5? toType: GrantFiled: October 30, 2000Date of Patent: December 12, 2006Assignee: Universite de SherbrookeInventors: Jean-Pierre Perreault, Sirinart Ananvoranich, Daniel Lafontaine
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Publication number: 20060235509Abstract: A cardiac valve with a first anchor frame and a cover on the first anchor frame for unidirectional flow of a liquid through the valve.Type: ApplicationFiled: April 15, 2005Publication date: October 19, 2006Inventor: Daniel Lafontaine
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Publication number: 20060212027Abstract: Some embodiments of the invention relate to a system for treating tissue internal to a body, such as heart tissue. For example, the system may be used to ablate tissue as a treatment for atrial fibrillation. In certain embodiments, the system is capable of causing scar tissue to form in ostial areas of the atrium rather than inside the pulmonary vein. In such embodiments, the system may include a tissue treatment member that is operable to form an annular area of ablated tissue along the outer portion of the ostium in an area known as the antrum.Type: ApplicationFiled: March 17, 2005Publication date: September 21, 2006Inventors: Nassir Marrouche, Daniel Lafontaine