Patent ID: 8182686

Claim:
A hollow fiber membrane separation device with two flow spaces, of which a first space is formed by the capillary tube passages of a hollow-fiber bundle cast at its ends into a sealing compound, and a second space is formed by a housing enclosing the fiber bundle, said first space being sealed off by caps placed on the sealing compounds, said housing, into which the hollow-fiber bundle is drawn, comprising at each of its longitudinal ends, tooth-like or pinnacle-like projections formed by axial notches or indentations, said projections running out freely in an axial direction of said housing, said housing having, between the tooth-like or pinnacle-like projections, extensions extending from the projections, said extensions extending to the adjacent tooth-like or pinnacle-like projection, said projections with said extensions being connected to said sealing compound at each of said housing ends to reduce stress on said hollow fiber bundle.