Elastically deformable and even righting end, korrugiertes catheter shaft tube for the suitable for cell culture growth thereon to - and discharge of substances

摘要

In a spiral or annular korrugierter shank bodies made from very thin-walled, optimally large lumen implemented, approximately of film-like, passenger compartment in the form of a material deformation, automatically elastically aufrichtendem material, which in the event of a from outside onto the shank bodies acting on all sides, and the design specific pressure of about 10 to 100 mbar, preferably 25 to 55 mbar, of a substantially circular, only low-grade deformed shank lumen, and in the case of exceeding of this specific force acting on the shank bodies, with the shortest possible time lag is radially relative to a band-like, collapsed structure enfolds, in this state, with an almost constant elastic return force acting on the adjacent tissue via further deflection areas over all the axes can be deformed, and, if the temperature falls below this kollabierend force acting on the shaft tube, quickly to its initial shape radially toward the upright, and the lumen open shaft tube in the above described pressure acting from outside, without any significant narrowing of the shank lumen, bending of the shaft axis of 30 to 90 degrees, preferably 45 to 60 degrees, and in the event of overshooting of a design specific critical deflection angle, in the state of a largely power neutral axial folding, and when below this critical deflection angle, is automatically raised by means of its longitudinal axis.