Producing fiber coating or sleeve-like fleece body from electrospun fibers, comprises removing fiber from spinneret impinged with electric high voltage relative to collector and placing fiber on coaxially rotating spindle relative to nozzle

摘要

Producing a fiber coating or a sleeve-like fleece body from electrospun fibers, comprises removing at least one fiber from a spinneret impinged with an electric high voltage relative to a collector, and placing the fiber on a coaxially rotating spindle (3) relative to a nozzle (5) in the spindle axis at or on a collector sleeve (2) arranged on the spindle, which has no attraction potential against the fiber leaving the nozzle and adjacent with both the ends of spindle regions, which at least temporarily has an attractive potential against the fiber leaving the nozzle. Producing a fiber coating or a sleeve-like fleece body from electrospun fibers, comprises removing at least one fiber from a spinneret impinged with an electric high voltage (process voltage) relative to a collector, and placing the fiber on a coaxially rotating spindle (3) relative to a nozzle (5) in the spindle axis at or on a collector sleeve (2) arranged on the spindle, which has no attraction potential against the fiber leaving the nozzle and adjacent with both the ends of spindle regions, which at least temporarily has an attractive potential against the fiber leaving the nozzle, where the fibers are predominantly oriented along the longitudinal axis of the fleece body or the fiber coating. Independent claims are also included for: (1) a sleeve-like fleece body made of electrospun fibers with a predominantly longitudinal fiber orientation, where a large proportion of fibers are oriented at an acute angle between 0-55[deg] to the sleeve axis; and (2) a stent (1) with a sleeve-like fiber coating made of electrospun fibers, which are predominantly oriented along the longitudinal axis of the stent, and is obtained by the above mentioned method.