Patent ID: 11911563
Assignee: PLASTIFLEX GROUP
Field: Other special machines (Mechanical engineering)
Classification: CPC A  B | IPC A  B

Claim 17:
18. A method of producing a limb with at least one flexible, helically wound conduit according to claim 1, comprising:
a) providing a first polymer material or blend,
b) providing a second polymer material or blend different from the first polymer material or blend,
c) extruding the first polymer material or blend into area first web with a web thickness of less than 0.5 mm,
d) extruding the second polymer material or blend into a first rib part which has at least one valley shaped area,
e) forming said tubular structure of said conduit by helically winding said first web and joining adjacent windings of said first web by means of said first rib part,
f) placing at least one electrically conductive wire in the at least one valley shaped area, and
g) covering said electrically conductive wire with a second extruded rib part,
wherein said first polymer material or blend is a predetermined material or blend, selected for making said first web permeable to water vapor and one or more of O2 and CO2 and wherein a cooling step is applied to the first web before it is joined to the first rib part.