Abstract: A microfluidic component used for measuring electrical impedance across a biological object, the component including a microfluidic space including a zone referred to as measurement zone, at least two electrodes arranged facing one another on each side of the measurement zone, the component being formed by assembling, along a longitudinal junction plane, at least two superposed layers referred to as lower layer and upper layer, the two layers each having at least one cavity, the two layers being assembled with one another in such a way as to position the two cavities facing one another in order to form the microfluidic space.

Abstract: The invention relates to a method for detecting an analyte present in a liquid specimen, including: injecting the liquid specimen into a detection chamber, the detection chamber having a non-zero volume enclosing polymeric beads covered with a reagent suitable for the analyte to be detected; capturing at least one image of at least one region of the detection chamber using a sensor; processing the image acquired by the sensor, which includes determining a texture level of the acquired image; and determining a concentration of the analyte depending on the texture level determined for the image.

Abstract: A system for preparing a calibrated volume of blood plasma that includes a plurality of parts: a device for preparing the calibrated volume of blood plasma, which is in the form of a single card; a pneumatic-type actuating system SP; a treatment and command unit UC configured such as to execute a command sequence of different pneumatic command points of the pneumatic actuation system with a view to obtaining, from a taken blood sample, the calibrated volume of blood plasma. The device includes three distinct modules: a fluidic connection module M1 onto which a blood sampling device may be connected; a module M2 for separation of the blood plasma contained in the blood sample; a module M3 for obtaining at least one calibrated volume of blood plasma, after separation.

Abstract: An electrode for enzymatic biosensor being in the form of a fibrous material and comprising electrically conductive fibres and electrically non-conductive fibres, all or part of which are functionalised by enzymes, identical or different. A method for preparing such an electrode and an electrochemical detection enzymatic biosensor comprising same.

Abstract: The invention relates to a method for detecting an analyte present in a liquid specimen, characterized in that it comprises steps of: injecting said liquid specimen into a detection chamber (23), said detection chamber (23) having a non-zero volume enclosing polymeric beads (25) covered with a reagent suitable for said analyte to be detected, capturing at least one image of at least one region of the detection chamber using a sensor (30), processing said image acquired by the sensor, this comprising determining a texture level of said acquired image, and determining a concentration of said analyte depending on the texture level determined for said image.

Abstract: A system for preparing a calibrated volume of blood plasma that includes a plurality of parts: a device for preparing the calibrated volume of blood plasma, which is in the form of a single card; a pneumatic-type actuating system SP; a treatment and command unit UC configured such as to execute a command sequence of different pneumatic command points of the pneumatic actuation system with a view to obtaining, from a taken blood sample, the calibrated volume of blood plasma. The device includes three distinct modules: a fluidic connection module M1 onto which a blood sampling device may be connected; a module M2 for separation of the blood plasma contained in the blood sample; a module M3 for obtaining at least one calibrated volume of blood plasma, after separation.

Abstract: An article having properties allowing same to absorb a body fluid. The article includes at least three paths for the propagation of fluid from a fluid capture zone to at least one storage and/or evaporation area, each fluid propagation path being delimited by a fluid barrier preventing the passage of liquid from one path to another.

Abstract: A process for manufacturing a fluidic element, which consists in forming at least one fluid-permeable zone and one fluid-impermeable zone in a three-dimensional cellular material, by addition of at least one second material having a liquid initial state. The process will for example include soaking of the cellular material by the second material present in the liquid initial state, evacuating the second material present in its liquid initial state from at least one zone of the cellular material, in order to render the permeable zone.

Abstract: A device and method for determining an excretion flow rate of a body fluid of a person or an animal. The device includes an absorbent element equipped with at least three electrodes connected to a measuring system for measuring at least one electric parameter so as to be electrically coupled two by two and to form at least two pairs of electrodes, separating systems which include an inlet opening exposing a part of the absorbent element so as to create a diffusion path. At least two of the electrodes are first electrodes placed along the diffusion path in such a way that each of the first electrodes is at a distance from the inlet opening representative of a volume of absorbed fluid.

Abstract: A process for manufacturing a fluidic element, which consists in forming at least one fluid-permeable zone and one fluid-impermeable zone in a three-dimensional cellular material, by addition of at least one second material having a liquid initial state. The process will for example include soaking of the cellular material by the second material present in the liquid initial state, evacuating the second material present in its liquid initial state from at least one zone of the cellular material, in order to render the permeable zone.

Abstract: An article having properties allowing same to absorb a body fluid. The article includes at least three paths for the propagation of fluid from a fluid capture zone to at least one storage and/or evaporation area, each fluid propagation path being delimited by a fluid barrier preventing the passage of liquid from one path to another.

Abstract: An article to be applied against the skin, mucous membranes or a wound, in order to absorb a liquid, such as an exudate, the article including: a distal absorbent layer; one or more visual indicators that change appearance upon contact with the liquid, the visual indicator(s) being in contact with the distal absorbent layer; an interface intended to come into contact with the skin or mucous membranes; at least one proximal absorbent layer located adjacent to the interface between the interface and the distal absorbent layer; and at least one layer forming a water barrier located between the proximal absorbent layer and the distal absorbent layer and provided with at least one passage through which the liquid that has passed through the proximal absorbent layer can reach the distal absorbent layer.

Abstract: An article having physiological-fluid absorption properties, including a liquid collection zone and a transfer structure, the latter including absorbent fibers and being designed to transport the liquid from said collection zone toward at least one retention and/or evaporation zone, said transfer structure having a cross section that increases in the direction of said retention and/or evaporation zone, over at least part of the path separating said collection zone from said retention and/or evaporation zone.

Abstract: The present invention relates to an item (10) having liquid (L) storage and/or discharge properties, in particular a bandage, comprising: —a liquid-permeable proximal structure (20), consisting of a material capable of inflating in the presence of liquid (L), —a distal structure (30) capable of draining a liquid (L), —a hydrophobic and non-absorbent spacer structure (40) extending between the distal (30) and proximal (20) structures, and being capable of locally limiting, when said material is not inflated, the exchange of liquid between the distal and proximal structures by maintaining a gap between said structures, and of authorizing a local expansion of the proximal structure in at least one zone (P) where said material is inflated in response to coming into contact with a liquid, said expansion causing the proximal and distal structure to move together locally and the transfer of said liquid from the zone of the proximal structure (20) having undergone expansion to the distal structure (30).

Abstract: The invention relates to an electrochemical battery that comprises at least two electrodes (21, 22) each made of a different conducting material, characterized in that said electrodes are woven or sewn in the fabric of the piece of clothing (1), said fabric containing between 60 and 90% of an animal or vegetal natural fiber and between 10 and 40% of a textile fiber of a chemical elastic material, and using a physiological fluid as an electrolyte. The invention also relates to a piece of clothing equipped with such a battery.

Abstract: The present invention relates to an item (10) having liquid (L) storage and/or discharge properties, in particular a bandage, comprising:—a liquid-permeable proximal structure (20), consisting of a material capable of inflating in the presence of liquid (L),—a distal structure (30) capable of draining a liquid (L),—a hydrophobic and non-absorbent spacer structure (40) extending between the distal (30) and proximal (20) structures, and being capable of locally limiting, when said material is not inflated, the exchange of liquid between the distal and proximal structures by maintaining a gap between said structures, and of authorising a local expansion of the proximal structure in at least one zone (P) where said material is inflated in response to coming into contact with a liquid, said expansion causing the proximal and distal structure to move together locally and the transfer of said liquid from the zone of the proximal structure (20) having undergone expansion to the distal structure (30).

Abstract: The present invention relates to a wound dressing comprising: —an application surface for application to a wound; —an absorbent structure for absorbing a liquid discharged from the wound; —an intermediate structure located between the application surface and the absorbent structure and arranged to promote the distribution of the liquid from the application surface to one or a plurality of inlet zones having a limited area in the absorbent structure; and —a detection system sensitive to the extent of the absorbent structure that is wetted by the liquid having penetrated same via the inlet zone or zones.

Abstract: The device of the invention comprises a support having a surface comprising an attachment zone (Z) capable of being functionalized with a probe (A) capable of binding, according to the pH and reversibly, to a target (B) so as to attach it; a working electrode (WE) and a counterelectrode (CE) for this working electrode, arranged on the support in the vicinity of the attachment zone; and means for applying a given electric current or a given potential to said working electrode so as to cause, when said attachment zone and said electrodes are immersed in an aqueous solution, a local variation in pH in the region of said attachment zone. The method for attaching and/or detaching a target or an object according to the invention uses this device, the attachment and/or the detachment being electrochemically controlled with the working electrode.

Abstract: Method for measuring the global ion concentration of a body fluid that comprises application of a stable DC voltage between first and second electrodes of a cell for measuring the global ion concentration of a body fluid so as to cause electrochemical hydrolysis reactions of the body fluid water to occur at the level of said first and second electrodes, measurement of a hydrolysis current generated by said electrochemical hydrolysis reactions of the water and determination of the global ion concentration of the body fluid by comparison with a previously defined calibration curve. The measuring cell comprises a fluid channel having an internal cross-section smaller than or equal to 1.5 mm.

Abstract: Process for manufacturing an article comprising an approximately flat porous support and, within this support, defined zones in a chosen pattern, these zones being grafted with sensor molecules, such as metals, biological molecules, whereas the rest of the support remains free of this grafting.