Patents by Inventor Frederic Neftel
Frederic Neftel 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: 20150217096Abstract: The present invention relates to a process for fabricating a porous coatings with controlled structure in the micro and nano-size domain. In particular, but not exclusively, it relates to a process for fabricating coatings with an anisotropic pore size distribution and to coatings obtained using such coatings. It describes in particular the use of ink-jet method to deposit in a controlled way such coatings. It also relates to porous coatings with controlled structure in the micro and nano-size domain. The coating has a thickness between 10 nanometres and 10 millimetres and its porosity is created in such a way that the pore size distribution is anisotropic. It finally describes objects covered with this coating.Type: ApplicationFiled: April 14, 2015Publication date: August 6, 2015Inventors: Laurent-Dominique PIVETEAU, Heinrich HOFMANN, Frederic NEFTEL
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Patent number: 8062281Abstract: The invention relates to a device for injecting liquid, comprising a piece of tubing on which there is situated at least a first liquid occlusion system. According to the invention, a regulation system is situated upstream from the first occlusion system, the two systems defining an intermediate segment in which the pressure, in the absence of injection, is greater than the pressure that exists downstream from the first occlusion system so as to direct any leak of liquid from the first occlusion system downstream. The invention is applicable to a pump used for injecting contrast liquid for medical imaging.Type: GrantFiled: June 1, 2009Date of Patent: November 22, 2011Assignee: SMC—Swiss Medical Care S.A.Inventor: Frederic Neftel
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Publication number: 20110142688Abstract: The invention relates to a pumping device including a pump (1) comprising—a pumping chamber (11) having a variable volume,—an inlet (2) communicating with the pumping chamber (11) and comprising a valve,—an outlet (5) communicating with the pumping chamber and comprising a valve,—an actuator adapted to change the volume of the pumping chamber,—a fluidic pathway comprising said inlet (2), said pumping chamber (11), said outlet (5) and a downstream line (7) situated downstream of the outlet valve,—a pressure sensor (4) for measuring the pressure between the valves of said pathway,—processing means for processing the received pressure data from the pressure sensor (4). The invention also covers a method for detecting a dysfunction in a pumping device as defined above.Type: ApplicationFiled: October 22, 2008Publication date: June 16, 2011Inventors: Eric Chappel, Niklaus Schneeberger, Frederic Neftel
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Patent number: 7901727Abstract: The present invention relates to a process for manufacturing a porous coating with structures in the micro or nano-size domain characterized by the following steps: —providing a support having a surface, —depositing on said surface one mono-layer of temporary particles, —depositing a coating on said temporary particles in such a way that the thickness of said coating is less than the particle diameter, —eliminating said temporary particles and thereby obtaining a porous coating, the pores of said coating corresponding to the spaces previously occupied by the temporary particles and at least a part of the pores communicating with the external environment, —applying a coating fixation step, characterized by the fact that said temporary particles are deposited on said surface in such a way that, after particle deposition, more than 50% of the temporary particles are in contact with a maximum of two adjacent particles and otherwise are separated by an empty space.Type: GrantFiled: September 15, 2006Date of Patent: March 8, 2011Assignee: Debiotech S.A.Inventors: Heinrich Hofmann, Frederic Neftel, Laurent-Dominique Piveteau
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Publication number: 20090324676Abstract: Porous coating for the controlled release of fluids such as drugs comprising a porous structure with internal reservoirs and passages, said reservoirs communicating with the external environment through said passages, in such a way that a fluid can move between the reservoirs and the external environment, characterized by the fact that for at least a group of said passages, each passage contains a restricting element which partially restricts the passage cross section.Type: ApplicationFiled: August 7, 2007Publication date: December 31, 2009Inventors: Heinrich Hofmann, Laurent-Dominique Piveteau, Frederic Neftel
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Publication number: 20090240233Abstract: The invention relates to a device for injecting liquid, comprising a piece of tubing on which there is situated at least a first liquid occlusion system. According to the invention, a regulation system is situated upstream from the first occlusion system, the two systems defining an intermediate segment in which the pressure, in the absence of injection, is greater than the pressure that exists downstream from the first occlusion system so as to direct any leak of liquid from the first occlusion system downstream. The invention is applicable to a pump used for injecting contrast liquid for medical imaging.Type: ApplicationFiled: June 1, 2009Publication date: September 24, 2009Applicant: SMC - Swiss Medical Care S.A.Inventor: Frederic Neftel
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Publication number: 20090199917Abstract: The invention relates to a microfluidic device comprising a first plate forming the substrate and including at least one perforation and, on either side of said first plate, at several locations, a material for defining passage portions consisting, in at least one of said locations, of an activatable material varying in volume on activation, said material being disposed at said locations in an arrangement that, during a first phase and upon activation of at least one location consisting of said activatable material, transforms it from a first configuration to a second configuration, modifying a three-dimensional network corresponding, in the second configuration and depending on the selected location(s) that are activated in said first phase, to different liquid paths including passage portions in offset planes parallel to the plane of the first plate, at least on either side of said first plate, and between which at least one of said perforations is located.Type: ApplicationFiled: May 29, 2007Publication date: August 13, 2009Applicant: DEBIOTECH S.A.Inventors: Veronique Vallet, Frederic Neftel, Laurent-Dominique Piveteau, Niklaus Schneeberger
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Publication number: 20090177273Abstract: The present invention relates to a process for fabricating a porous coatings with controlled structure in the micro and nano-size domain. In particular, but not exclusively, it relates to a process for fabricating coatings with an anisotropic pore size distribution and to coatings obtained using such coatings. It describes in particular the use of ink-jet method to deposit in a controlled way such coatings. It also relates to porous coatings with controlled structure in the micro and nano-size domain. The coating has a thickness between 10 nanometers and 10 millimeters and its porosity is created in such a way that the pore size distribution is anisotropic. It finally describes objects covered with this coating.Type: ApplicationFiled: May 16, 2007Publication date: July 9, 2009Inventors: Laurent-Dominique Piveteau, Heinrich Hofmann, Frederic Neftel
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Patent number: 7553304Abstract: The invention relates to a device for injecting liquid, comprising a piece of tubing on which there is situated at least a first liquid occlusion system. According to the invention, a regulation system (4) is situated upstream from the first occlusion system, the two systems defining an intermediate segment in which the pressure, in the absence of injection, is greater than the pressure that exists downstream from the first occlusion system so as to direct any leak of liquid from the first occlusion system downstream. The invention is applicable to a pump used for injecting contrast liquid for medical imaging.Type: GrantFiled: February 12, 2004Date of Patent: June 30, 2009Assignee: SMC-Swiss Medical Care S.A.Inventor: Frederic Neftel
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Publication number: 20090118695Abstract: Medical device for administering a solution, said device comprising pumping means, a reservoir, means of communication between said reservoir and said pumping means, and a line for connecting the medical device to a patient, characterized in that it comprises means for determining the physical/chemical characteristics of the solution as a function of time by means of a mathematical model that takes account of the permeability of the reservoir walls as a function of time and the temperature of the solution.Type: ApplicationFiled: June 18, 2007Publication date: May 7, 2009Inventor: Frederic Neftel
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Publication number: 20090098178Abstract: The present invention relates to a process for manufacturing a porous coating with structures in the micro or nano-size domain characterized by the following steps: -providing a support having a surface, -depositing on said surface one mono-layer of temporary particles, -depositing a coating on said temporary particles in such a way that the thickness of said coating is less than the particle diameter, -eliminating said temporary particles and thereby obtaining a porous coating, the pores of said coating corresponding to the spaces previously occupied by the temporary particles and at least a pail of the pores communicating with the external environment, -applying a coating fixation step, characterized by the fact that it furthermore comprise a filling step where said pores are at least partially filled with a liquid or solid substance. The invention also concerns a coating and an object which can be obtained with this process.Type: ApplicationFiled: September 15, 2006Publication date: April 16, 2009Inventors: Heinrich Hofmann, Frederic Neftel, Laurent-Dominique Piveteau
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Patent number: 7497840Abstract: The invention concerns a system and a method of use of said system for performing fluid administration on a patient, the system comprising: a liquid pump (1), a liquid distribution system (2) connected to said pump (1) in such a way that liquid can flow from the liquid distribution system (2) to the pump (1) and vice versa, liquid supply means (3) for supplying liquid to a patient (4) via said liquid distribution system (2) and said pump (1), a patient conduit (5) adapted for connecting said liquid distribution system (2) to a patient (4), the system being characterized by the fact that said liquid pump (1) is unidirectional and that said liquid distribution system (2) comprises switching means designed to alternatively connect the pump enter line (56) with the supply means (3) or with the patient conduit (5).Type: GrantFiled: August 2, 2004Date of Patent: March 3, 2009Assignee: Debiotech S.A.Inventors: Frederic Neftel, Florent Junod, Didier Vecten
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Publication number: 20090044875Abstract: Microfluidic system (1, 2, 10, 11, 16) comprising a first portion (3, 4, 24, 25) and a second portion (5-7), said first portion (3, 4) comprising a material which is able to change its volume when activated by an exciting factor, characterized by the fact that said first portion (3, 4) and said second portion (5-7) define a zone (3-7) which, when said first portion (3,4) is not yet activated by said exciting factor, shows a first topography devoid of any fluidic pathway and which, after activation by said exciting factor, shows a second topography (9, 14) which is adapted to contain at least one fluidic pathway, said microfluidic system furthermore comprising a tight cover surface (20) situated above said first portion (3, 4) and said second portion (5-7).Type: ApplicationFiled: November 24, 2006Publication date: February 19, 2009Inventors: Patrick Griss, Bjorn Samel, Goran Stemme, Frederic Neftel, Laurent-Dominique Piveteau
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Publication number: 20080294029Abstract: System to measure blood coagulation related parameters comprising one first channel (6) adapted to contain a blood sample; said system containing, at least partially, an expandable material which is able to increase its volume when activated by an exciting source; said system furthermore comprising several excitable regions distributed close to said first channel (6), in such a way that, when one of said excitable region is activated, said expandable material increases to such an extend that the channel cross section is reduced to a location situated at or near to said excitable region.Type: ApplicationFiled: November 24, 2006Publication date: November 27, 2008Inventors: Laurent-Dominique Piveteau, Veronique Vallet, Frederic Neftel, Lynda Metref, Nicolas Blanc
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Publication number: 20080249616Abstract: The present invention relates to a process for manufacturing a porous coating with structures in the micro or nano-size domain characterized by the following steps: -providing a support having a surface, -depositing on said surface one mono-layer of temporary particles, -depositing a coating on said temporary particles in such a way that the thickness of said coating is less than the particle diameter, -eliminating said temporary particles and thereby obtaining a porous coating, the pores of said coating corresponding to the spaces previously occupied by the temporary particles and at least a part of the pores communicating with the external environment, -applying a coating fixation step, characterized by the fact that said temporary particles are deposited on said surface in such a way that, after particle deposition, more than 50% of the temporary particles are in contact with a maximum of two adjacent particles and otherwise are separated by an empty space.Type: ApplicationFiled: September 15, 2006Publication date: October 9, 2008Inventors: Heinrich Hofmann, Frederic Neftel, Laurent-Dominique Piveteau
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Publication number: 20080131300Abstract: Peristaltic pump comprising—a pump body (3) with a face containing at least a first groove (4) covered by a flexible membrane (2) fixed to said pump body (3), in such a way as to form a fluid tight channel, said membrane (2) furthermore comprising a sealing ridge (19) which is in permanent contact against said groove (4) so as to obtain a resting fluid tight sealing segment in the channel, —a movable pressure element (7) adapted to temporarily press a portion of the membrane (2) above said groove (4) and form a moving sealing segment in the channel, —driving means (8) adapted to move said movable pressure element (7) along said groove, said driving means (8) furthermore being adapted to move said movable pressure element (7) exclusively along a plane which is parallel to said pump body face, said sealing ridge (19) and/or said groove (4) being adapted to let said movable pressure element (7) in said parallel plane when moving over said sealing ridge (19), characterized by the fact that the movable pressure elType: ApplicationFiled: October 20, 2005Publication date: June 5, 2008Inventors: Florent Junod, Frederic Neftel
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Publication number: 20080058711Abstract: The invention concerns a system and a method of use of said system for performing fluid administration on a patient, the system comprising a liquid pump (1), a liquid distribution system (2) connected to said pump (1) in such a way that liquid can flow from the liquid distribution system (2) to the pump (1) and vice versa, liquid supply means (3) for supplying liquid to a patient (4) via said liquid distribution system (2) and said pump (1), a patient conduit (5) adapted for connecting said liquid distribution system (2) to a patient (4), the system being characterized by the fact that said liquid distribution system (2) comprises two distinct hub chambers (7,8), the first hub chamber (7) including at least one liquid supply port with dedicated valve means (9), one patient port with dedicated valve means (10) and one pump inlet (26), the second hub chamber (8) including at least, one patient port (18) or warmer port (16) with dedicated valve means and one pump outlet (27), said system furthermore comprisinType: ApplicationFiled: August 2, 2004Publication date: March 6, 2008Inventors: Frederic Neftel, Florent Junod, Didier Vecten
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Publication number: 20080014105Abstract: Peristaltic pumping system comprising a flexible tube, a substantially cylindrical rotating roller unit (8,11) containing a series of rollers (11) which are freely rotating around their axes and freely moving along a radial segment, holding means (8) for commonly holding the rollers (11), a central spreader element (5) for pushing the rollers (11) against the flexible tube and a driving unit (1,2) comprising a driving coupling element (1), characterized by the fact that said holding means (8) is made of at least one planar element (8) having retaining and guiding means for rollers (11), said planar element (8) being furthermore adapted to be directly coupled to said coupling element (1,2) in such a way that rollers (11) are driven through said planar element (8).Type: ApplicationFiled: April 27, 2005Publication date: January 17, 2008Inventors: Frederic Neftel, Florent Junod
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Publication number: 20060189923Abstract: The invention concerns a system and a method of use of said system for performing fluid administration on a patient, the system comprising: a liquid pump (1), a liquid distribution system (2) connected to said pump (1) in such a way that liquid can flow from the liquid distribution system (2) to the pump (1) and vice versa, liquid supply means (3) for supplying liquid to a patient (4) via said liquid distribution system (2) and said pump (1), a patient conduit (5) adapted for connecting said liquid distribution system (2) to a patient (4), the system being characterized by the fact that said liquid pump (1) is unidirectional and that said liquid distribution system (2) comprises switching means designed to alternatively connect the pump enter line (56) with the supply means (3) or with the patient conduit (5).Type: ApplicationFiled: August 2, 2004Publication date: August 24, 2006Inventors: Frederic Neftel, Florent Junod, Didier Vecten
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Publication number: 20050089994Abstract: The invention relates to a peritoneal dialysis sampling system to be used together with a peritoneal dialysis system which is programmed to deliver fluid to a peritoneal cavity of a patient and to drain the fluid from the cavity, said peritoneal dialysis system comprising a supplying line and supplying means for supplying dialysis fluid to the peritoneal cavity, a draining line and draining means for draining the fluid from the cavity, said peritoneal dialysis sampling system being characterized by the fact that it consists of an automatic sampling system which is able to automatically sample volumic fractions of the dialysate contained in the peritoneum of the patient at specific time intervals in order to evaluate the peritoneal membrane characteristics and/or improve the peritoneal dialysis for a given patient.Type: ApplicationFiled: January 23, 2003Publication date: April 28, 2005Inventor: Frederic Neftel