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).

  • Publication number: 20150217096
    Abstract: 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: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Inventors: Laurent-Dominique PIVETEAU, Heinrich HOFMANN, Frederic NEFTEL
  • Patent number: 8062281
    Abstract: 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: Grant
    Filed: June 1, 2009
    Date of Patent: November 22, 2011
    Assignee: SMC—Swiss Medical Care S.A.
    Inventor: Frederic Neftel
  • Publication number: 20110142688
    Abstract: 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: Application
    Filed: October 22, 2008
    Publication date: June 16, 2011
    Inventors: Eric Chappel, Niklaus Schneeberger, Frederic Neftel
  • Patent number: 7901727
    Abstract: 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: Grant
    Filed: September 15, 2006
    Date of Patent: March 8, 2011
    Assignee: Debiotech S.A.
    Inventors: Heinrich Hofmann, Frederic Neftel, Laurent-Dominique Piveteau
  • Publication number: 20090324676
    Abstract: 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: Application
    Filed: August 7, 2007
    Publication date: December 31, 2009
    Inventors: Heinrich Hofmann, Laurent-Dominique Piveteau, Frederic Neftel
  • Publication number: 20090240233
    Abstract: 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: Application
    Filed: June 1, 2009
    Publication date: September 24, 2009
    Applicant: SMC - Swiss Medical Care S.A.
    Inventor: Frederic Neftel
  • Publication number: 20090199917
    Abstract: 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: Application
    Filed: May 29, 2007
    Publication date: August 13, 2009
    Applicant: DEBIOTECH S.A.
    Inventors: Veronique Vallet, Frederic Neftel, Laurent-Dominique Piveteau, Niklaus Schneeberger
  • Publication number: 20090177273
    Abstract: 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: Application
    Filed: May 16, 2007
    Publication date: July 9, 2009
    Inventors: Laurent-Dominique Piveteau, Heinrich Hofmann, Frederic Neftel
  • Patent number: 7553304
    Abstract: 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: Grant
    Filed: February 12, 2004
    Date of Patent: June 30, 2009
    Assignee: SMC-Swiss Medical Care S.A.
    Inventor: Frederic Neftel
  • Publication number: 20090118695
    Abstract: 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: Application
    Filed: June 18, 2007
    Publication date: May 7, 2009
    Inventor: Frederic Neftel
  • Publication number: 20090098178
    Abstract: 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: Application
    Filed: September 15, 2006
    Publication date: April 16, 2009
    Inventors: Heinrich Hofmann, Frederic Neftel, Laurent-Dominique Piveteau
  • Patent number: 7497840
    Abstract: 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: Grant
    Filed: August 2, 2004
    Date of Patent: March 3, 2009
    Assignee: Debiotech S.A.
    Inventors: Frederic Neftel, Florent Junod, Didier Vecten
  • Publication number: 20090044875
    Abstract: 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: Application
    Filed: November 24, 2006
    Publication date: February 19, 2009
    Inventors: Patrick Griss, Bjorn Samel, Goran Stemme, Frederic Neftel, Laurent-Dominique Piveteau
  • Publication number: 20080294029
    Abstract: 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: Application
    Filed: November 24, 2006
    Publication date: November 27, 2008
    Inventors: Laurent-Dominique Piveteau, Veronique Vallet, Frederic Neftel, Lynda Metref, Nicolas Blanc
  • Publication number: 20080249616
    Abstract: 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: Application
    Filed: September 15, 2006
    Publication date: October 9, 2008
    Inventors: Heinrich Hofmann, Frederic Neftel, Laurent-Dominique Piveteau
  • Publication number: 20080131300
    Abstract: 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 el
    Type: Application
    Filed: October 20, 2005
    Publication date: June 5, 2008
    Inventors: Florent Junod, Frederic Neftel
  • Publication number: 20080058711
    Abstract: 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 comprisin
    Type: Application
    Filed: August 2, 2004
    Publication date: March 6, 2008
    Inventors: Frederic Neftel, Florent Junod, Didier Vecten
  • Publication number: 20080014105
    Abstract: 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: Application
    Filed: April 27, 2005
    Publication date: January 17, 2008
    Inventors: Frederic Neftel, Florent Junod
  • Publication number: 20060189923
    Abstract: 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: Application
    Filed: August 2, 2004
    Publication date: August 24, 2006
    Inventors: Frederic Neftel, Florent Junod, Didier Vecten
  • Publication number: 20050089994
    Abstract: 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: Application
    Filed: January 23, 2003
    Publication date: April 28, 2005
    Inventor: Frederic Neftel