Abstract: A device for electrically controlled of ions, comprises a first electrolyte; a first electrode, which is arranged in direct or indirect contact with the first electrolyte, an encapsulation; and an ion conductor, which is arranged to receive and/or deliver ions from/to the first electrolyte. The encapsulation is arranged to effectively enclose the first electrolyte, and the ion conductor is arranged to transport ions from/to an outside of the encapsulation.

Abstract: A device for electrically controlled transport of ions between a source and a target electrolyte, including: a first source electrode and a first target electrode, each capable of conducting ions and electrons, wherein the source electrode is arranged to receive ions from the source electrolyte and the target electrode is arranged to release ions to the target electrolyte.

Abstract: A microfiuidic device comprises a valve having electrically controllable wetting properties. The valve comprises a valve surface arranged in a closed valve space defined by at least the valve surface, a first liquid opening for leading a first liquid to the valve and a second liquid opening for leading a second liquid to the valve. The valve surface, in a first state, is sufficiently hydrophobic to prevent contact between the first liquid and the second liquid. The valve surface, in a second state, is sufficiently hydrophilic to allow contact between the first liquid and the second liquid. A ventilation outlet is provided for allowing gas to escape from the valve space.

Abstract: The present disclosure relates to a device comprising a conductive substrate surface (19), at least one layer of a conductive polymer (14) deposited on the surface (19), a first electrolyte (13) arranged in contact with the conductive polymer layer, and a counter electrode (11), arranged in contact with the first electrolyte (13), such that a potential difference can be applied between the conductive substrate (15) and the counter electrode (11). The conductive polymer (14), in a first state, before applying the potential difference, exhibits a first adhesive capacity, wherein the conductive polymer layer (14) is substantially attached to the conductive substrate surface (19). In a second state, subsequent to application of the potential difference, the conductive polymer (14), exhibits a second adhesive capacity, such that at least a portion of the conductive polymer layer (14) is substantially released from the conductive substrate surface (19).

Abstract: A device for electrically controlled of ions, comprises a first electrolyte; a first electrode, which is arranged in direct or indirect contact with the first electrolyte, an encapsulation; and an ion conductor, which is arranged to receive and/or deliver ions from/to the first electrolyte. The encapsulation is arranged to effectively enclose the first electrolyte, and the ion conductor is arranged to transport ions from/to an outside of the encapsulation.

Abstract: A device for electrically controlled transport of ions between a source and a target electrolyte, including: a first source electrode and a first target electrode, each capable of conducting ions and electrons, wherein the source electrode is arranged to receive ions from the source electrolyte and the target electrode is arranged to release ions to the target electrolyte.

Abstract: An electrode for use in a liquid electrolyte is at least partially provided with a covering, the covering being ion permeable and electrically insulating. Systems and methods for preventing short circuiting of the electrodes are also disclosed. Also disclosed is a counter electrode for use with a working electrode comprising conducting polymer, in the presence of an electrolyte. The counter electrode comprises conducting polymer. Systems and methods for preventing ion depletion of the electrolyte are also disclosed.

Abstract: A medical device for introduction into a body comprises a body-insertable part (1, 3, 7, 10, 20, 30, 35, 40, 60, 70, 80) having a first electroactive polymer (13), integrated with the body-insertable part and comprising an electrically controllably releasable first substance. There is further disclosed a method for delivering a chemically active substance into a body.

Abstract: In one embodiment, an actuator device includes a first electroactive polymer layer, including an active electroactive polymer layer portion. In one embodiment, the active electroactive polymer layer portion is controllably shiftable between a substantially neutral state and a buckled state.

Abstract: An elongate device for introduction into a body lumen comprises a body extending in a longitudinal direction (L), and having at least two skeletal members (21, 21a, 21b, 24, 27a, 27b), which are substantially aligned in the longitudinal direction (L), and at least one electroactive polymer material (22), which changes volume upon electrical activation, arranged to control a distance between two longitudinally spaced-apart portions of said skeletal members (21, 21a, 21b, 24, 27a, 27b). The body presents an asymmetric bending stiffness, and/or the electroactive polymer material is asymmetrically arranged about a central axis of the device, such that the body is arranged to bend transversely of the longitudinal direction (L) upon activation of the electroactive polymer material. The electroactive polymer material (22) is form fit onto at least one of the skeletal members (21, 21a, 21b).

Abstract: Methods for producing micromachined layered devices having a membrane layer and a first and second layer on both sides of the membrane layer are disclosed. The method includes applying a membrane layer to a substrate, opening a window in the substrate so as to enable the addition of layers from both sides of the membrane layer while the substrate is made into a frame that supports the membrane layer during processing, adding at least one layer on each side of the membrane either simultaneously or on one side at a time, and removing the device from the substrate frame.

Abstract: A surgical device comprises an insertion device, adapted for insertion into a body, a tool, which is to be inserted and left in the body, and a polymer microactuator, arranged to releasably retain the tool in or on the insertion device.

Abstract: Method for producing a micromachined layered device comprising a membrane layer and a first layer on one side of the membrane layer and a second layer on the opposite side of the membrane layer, the method comprising the following steps: d) a membrane layer is applied on a substrate; e) a window in the substrate is opened so as to free the membrane layer in order to enable the adding of layers from both sides of the membrane layer while the substrate is made into a frame that supports the membrane layer during the processing; f) at least one layer is added on each side of the membrane either simultaneously or on one side at a time; d) the device is cut out and removed from the substrate

Abstract: A tool for biomedical surgery comprises an elongate tube-like structure which is insertable into a body lumen, a surgical tool, arranged on the elongate tube-like structure, and a layered polymer microactuator, arranged in or on the elongate tube-like structure, for inducing geometrical changes or movements to the surgical tool via an electrochemically induced change of volume of the layered polymer microactuator. The layered polymer microactuator is arranged for external electrical actuation.

Abstract: Microactuator comprising a volume changing layer (1) and a carrier substrate layer (2) carrying the volume changing layer (1), the microactuator also comprising a reinforcing structure (3) having an unevenly distributed bending stiffness and that the reinforcing structure (3) is spread over any of the layers (1), (2) to control the movement of the microactuator.

Abstract: Microactuator comprising a volume changing layer (1) and a carrier substrate layer (2) carrying the volume changing layer (1), the microactuator also comprising a reinforcing structure (3) having an unevenly distributed bending stiffness and that the reinforcing structure (3) is spread over any of the layers (1), (2) to control the movement of the microactuator.