Neuronano Ab

Obducat Aktiebolag

Nauronano Ab

Pt Stabilisation Ab

Per Petersson

Jens Schouenborg

Fredrik Ek

Nils Danielsen

Jenny Eriksson Linsmeier

Bjarni Bjarnason

Gust Bierings

Jenny Sj&ouml;berg

Mikael Gustavsson

G&ouml;ran Frennesson

Bin Xie

A medical microelectrode includes an elongate electrode body including a tip section, a main body section and, optionally, a coupling section. The tip section, the main body section and, optionally, the coupling section are embedded in a first electrode matrix element, which is substantially rigid, biocompatible and soluble or biodegradable in a body fluid. Additionally the microelectrode includes a dissolution retarding layer on the first electrode matrix element and/or a second electrode matrix element disposed between the first electrode matrix element and the electrode. Upon dissolution or biodegradation of the first electrode matrix element a drug comprised by the first electrode matrix element or the second electrode matrix element is released into the tissue. Also disclosed are bundles and arrays of the electrodes and their use.

Microelectrode and multiple microelectrodes

A medical microelectrode includes an elongate electrode body including a tip section, a main body section and, optionally, a coupling section. The tip section, the main body section and, optionally, the coupling section are embedded in a first electrode matrix element, which is substantially rigid, biocompatible and soluble or biodegradable in a body fluid. Additionally the microelectrode includes a dissolution retarding layer on the first electrode matrix element and/or a second electrode matrix element disposed between the first electrode matrix element and the electrode. Upon dissolution or biodegradation of the first electrode matrix element a drug comprised by the first electrode matrix element or the second electrode matrix element is released into the tissue. Also disclosed are bundles and arrays of the electrodes and their use, which may be positioned on a face of a solid support.

A system for compensating a neurally triggered or other self-caused displacement of a tissue of an animal including man comprises a base provided with a means for immobilizing the animal or body part thereof comprising the tissue, one or more displacement means in contact with the base, a means for sampling position data from a marker disposed in or in the proximity of the tissue, a means for sampling source activity data from one or more sources of displacement, microprocessor means for correlating position data and source activity data to generate a predictive correspondence, a means for controlling the one or more displacement means by source activity data based on the predictive correspondence. Also disclosed is a corresponding method and use.

Method and system for compensating a self-caused displacement of tissue

In etching, an etchant () for etching of a substrate () is applied in a given pattern. Before etching, a resist layer () is applied to the substrate () in said pattern to define at least one exposed portion () of the substrate (). In order to minimize under etching, a passivating substance is arranged, before etching, on the substrate () to also define said pattern, i.e., at the periphery of the exposed portion (). The passivating substance is such as to form, during etching, an etch-protecting compound at the periphery.

Method in etching of a substrate

In a method of etching a substrate having a surface layer of conductive material, a circuit pattern is transferred to the surface layer in a central surface area portion of the substrate by electrochemical etching. To prevent excessive current densities from forming at the periphery of the central surface area portion during the etching step, a frame adapted to attract electrical field is provided adjacent to the central surface area portion. The frame can be part of a separate frame element which is placed on the substrate before the etching step, or be incorporated in a resist coating on the substrate. The frame can be transferred to the resist coating by any suitable means, for example by photolithographic exposure through a mask with a suitable frame pattern. Alternatively, the frame can be incorporated in a prefabricated substrate element, to which the circuit pattern is transferred in the etching step.

Growing community of inventors

Lund, Sweden

Per Petersson