Abstract: This invention relates to an implantable lead, which comprises a conductor; an electrode assembly, arranged at a distal end of the lead, and comprising a housing defining an internal cavity; a helical guide spring arranged in a proximal portion of the cavity and having several spaced turns, and a fixation assembly, which is rotatable relative to the housing, and which includes a shaft extending into the cavity from a proximal end of the housing; and an extendable helical fixation element attached to the shaft at a distal end thereof and protruding beyond the distal end thereof. The fixation assembly has an interaction portion, which interacts with the helical guide spring for causing longitudinal movement of the fixation element when the shaft is rotated.

Abstract: In a method and device for mounting an elongated member inside an elongated, elastic, flexible tubing, initially having an inside cross-sectional dimension that is approximately equal to or less than the outside cross-sectional dimension of the elongated member, the inner cross-sectional dimension of the flexible tubing is expanded by applying a pressurized fluid to the inner bore of the tubing, and inserting the elongated member into the tubing while the pressurized fluid is being applied.

Abstract: A medical implantable lead, which is adapted to be attached with a distal end to tissue inside a human or animal body, has a flexible sleeve in the distal end that protrudes a distance in an axial direction from the rest of the lead. When in a desired position, a force acting in an axial direction on the flexible sleeve will bring the sleeve to be compressed in the axial direction such that the surface area of the distal end will be enlarged. The flexible sleeve is formed with axial slots from an unbroken ring segment in an outermost distal edge of the sleeve and a distance in the proximal direction such that flexible segments are formed in the sleeve, wherein a force acting in an axial direction on the flexible sleeve will bring the sleeve to be compressed in the axial direction by folding outwards of the flexible segments.

Abstract: In a method and device for mounting an elongated member inside an elongated, elastic, flexible tubing, initially having an inside cross-sectional dimension that is approximately equal to or less than the outside cross-sectional dimension of the elongated member, the inner cross-sectional dimension of the flexible tubing is expanded by applying a pressurized fluid to the inner bore of the tubing, and inserting the elongated member into the tubing while the pressurized fluid is being applied.

Abstract: This invention relates to an implantable lead, which comprises a conductor; an electrode assembly, arranged at a distal end of the lead, and comprising a housing defining an internal cavity; a helical guide spring arranged in a proximal portion of the cavity and having several spaced turns, and a fixation assembly, which is rotatable relative to the housing, and which includes a shaft extending into the cavity from a proximal end of the housing; and an extendable helical fixation element attached to the shaft at a distal end thereof and protruding beyond the distal end thereof. The fixation assembly has an interaction portion, which interacts with the helical guide spring for causing longitudinal movement of he fixation element when the shaft is rotated.