摘要:
A lead for deep electrical neurostimulation, the lead comprising: a rod of biocompatible material; and a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith; in which said blade presents two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod.A deep electrical neurostimulation system comprising: an electrical pulse generator for deep electrical neurostimulation; and at least one lead of the above-described type, having its electrodes electrically connected to said electrical pulse generator.
摘要:
A lead for deep electrical neurostimulation, the lead comprising: a rod of biocompatible material; and a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith; in which said blade presents two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod. A deep electrical neurostimulation system comprising: an electrical pulse generator for deep electrical neurostimulation; and at least one lead of the above-described type, having its electrodes electrically connected to said electrical pulse generator.
摘要:
The present invention relates to a method to produce a biochip and to a biochip, said biochip being composed particularly of biological probes grafted onto a conductive polymer. The method according to the invention comprises the following steps: a) structuring of a substrate so as to obtain on said substrate microtroughs comprising in their base a layer of a material capable of initiating and promoting the adhesion onto said layer of a film of a pyrrole and functionalised pyrrole copolymer by electropolymerisation, b) collective electropolymerisation, so as to form an electropolymerised film of a pyrrole and functionalised pyrrole copolymer on the base of said microtroughs, c) direct or indirect fixation of functionalised oligonucleotides by microdeposition or a liquid jet printing technique.
摘要:
A chemical or biological analysis multi-point micro-system including a structure equipped with micro-wells, each micro-well being intended to receive a reagent coupled with a conductive polymer. Each micro-well includes a reception electrode on which the reagent is fixed by the conductive polymer with which it is coupled. Each micro-well also includes a counter-electrode arranged so as to be able to apply, in a volume of the micro-well, an electric field between its counter-electrode and its reception electrode. The structure further enables the simultaneous connection of all the reception electrodes to a first electric potential and enables the simultaneous connection of all the counter-electrodes to a second electric potential to be able to set up the electric field.
摘要:
A process for manufacturing an anisotropic conducting film including an insulating film in which holes are formed. Conducting inserts are located in the holes. First ends of the inserts project from one side of the insulating film, from a substrate in which compartments are formed on one surface, corresponding to the distribution of inserts on the insulating film, the shape of the compartments being complementary to the shape of the first ends of the inserts. The manufacturing process includes the steps of using a substrate with compartments with a tipped finish, producing an insulating film above the substrate with holes facing the compartments, producing conducting inserts in the holes and the compartments, and separating the insulating film in which the conducting inserts are formed.
摘要:
The process includes the following steps: forming a layer of meltable material (102) on an initial substrate (100); forming a first layer of dielectric material (104) and engraving this layer (104) to form openings (106) therein; forming metal blocks (108) in the openings (106); depositing a metal layer (110) covering the blocks; engraving the metal layer (110) to form conducting tracks (112); forming a layer of dielectric material (114) covering the conducting tracks and engraving this layer (114) to form openings therein; forming metal blocks (118) in these openings; separating the interconnection substrate from the initial substrate by heating the meltable material to a temperature equal to or exceeding its melting temperature.
摘要:
The integrated electronic sensor for characterizing physical quantities comprises a substrate (5) having a characterizing member (3) and a cover (9) maintained in the vicinity of and in front of the characterizing member (3) by means of at least one ball (11) bearing on the substrate (5), so as to provide a first spacing between the cover (9) and the substrate and is characterized in that the cover has a boss (15) facing the characterizing member (3) so as to define a second spacing between the cover (9) and the member, which is smaller than the spacing between the cover and the substrate.
摘要:
The invention relates to a device for transiently contacting at least one unit for capturing biological targets with a body fluid containing them, a method for recovering the captured targets for analysis, and a system for contacting and recovering a capture substrate included in said unit. The invention relates to samples obtained in particular in vivo from body fluids of the human body, e.g. circulating body fluids, said fluids possibly containing, as targets, proteins, oligonucleotides such as RNA or DNA, antibodies, enzymes or cells. A contacting device (1) according to the invention comprises: —a sampling tip (2) having a contacting end intended to be introduced into a medium containing said fluid, and—the or each capturing unit which is bound to said end and which comprises a capture substrate (3) defining a target capturing surface covered with at least one biocompatible and porous crosslinked polymer layer (4) designed to retain the or each capture substrate and only to allow biological particles including targets smaller than a limiting size to pass through, in such a way that the or each capture substrate is recoverable after said contacting by dissolution of the or each layer.
摘要:
A method of counting thrombocytes contained in a sample of blood, the method having the steps: mixing said sample with: fluorescent markers suitable for bonding specifically with the thrombocytes; and an agent for inhibiting activation of said thrombocytes; introducing the sample (E) into a fluidic chamber (CF) having at least one transparent face; acquiring at least one digital image (IN) of said sample by fluorescence microscopy under stationary illumination; and counting the thrombocytes (T) present in said or each image by image processing computer means (O). Apparatus for implementing the method.
摘要:
A detection method of detecting analytes of interest which are present in a liquid. The detection method including the steps of forming drops of liquid on a first surface by capillary breaking of a finger of liquid, which is initially formed by liquid dielectrophoresis. The thus formed drops each come into contact with a different detection surface, which is arranged facing the first surface. Analytes of interest which are present in each of the drops are detected at the corresponding detection surface.